/* roulang page: index */
:root {
      --color-primary: #00d9a5;
      --color-primary-dark: #00b38a;
      --color-accent: #ff8a3d;
      --color-purple: #7c6ff0;
      --color-bg-deep: #0f141e;
      --color-bg-deep-2: #111827;
      --color-bg-light: #f4f7f6;
      --color-bg-card-dark: #1a2332;
      --color-bg-card-light: #ffffff;
      --color-text-on-dark: #f5f7fa;
      --color-text-on-light: #111827;
      --color-muted-dark: #94a3b8;
      --color-muted-light: #5b6474;
      --color-border-dark: rgba(255, 255, 255, 0.08);
      --color-border-light: rgba(0, 0, 0, 0.08);
      --radius-sm: 8px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
      --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
      --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
      --container-width: 1200px;
      --section-padding: 72px 0;
      --section-padding-mobile: 48px 0;
      --transition-base: 0.22s ease;
      --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-stack);
      font-size: 15px;
      line-height: 1.75;
      color: var(--color-text-on-light);
      background-color: var(--color-bg-light);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-base);
    }

    a:hover {
      color: var(--color-primary);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 站点头部 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(15, 20, 30, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--color-border-dark);
      transition: background-color var(--transition-base), box-shadow var(--transition-base);
    }

    .site-header.scrolled {
      background-color: rgba(15, 20, 30, 0.98);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      color: #06261f;
      letter-spacing: 0.5px;
    }

    .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--color-text-on-dark);
      letter-spacing: 1px;
    }

    .logo-text span {
      color: var(--color-primary);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 6px;
      list-style: none;
    }

    .nav-item {
      position: relative;
    }

    .nav-link {
      display: block;
      padding: 10px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--color-muted-dark);
      border-radius: 6px;
      transition: all var(--transition-base);
      position: relative;
      letter-spacing: 0.3px;
    }

    .nav-link:hover {
      color: var(--color-text-on-dark);
      background-color: rgba(255, 255, 255, 0.05);
    }

    .nav-link.active {
      color: var(--color-primary);
      background-color: rgba(0, 217, 165, 0.08);
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 50%;
      transform: translateX(-50%);
      width: 24px;
      height: 3px;
      background-color: var(--color-primary);
      border-radius: 3px 3px 0 0;
    }

    .mega-trigger {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--color-muted-dark);
      font-size: 14px;
      font-weight: 500;
      padding: 10px 14px;
      border-radius: 6px;
      cursor: pointer;
      transition: all var(--transition-base);
      letter-spacing: 0.3px;
    }

    .mega-trigger:hover {
      color: var(--color-text-on-dark);
      background-color: rgba(255, 255, 255, 0.05);
    }

    .mega-trigger .arrow {
      font-size: 10px;
      transition: transform var(--transition-base);
    }

    .mega-panel {
      position: absolute;
      top: calc(100% + 12px);
      right: 0;
      width: 560px;
      background-color: #161f2d;
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-lg);
      padding: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all var(--transition-smooth);
      box-shadow: var(--shadow-lg);
      z-index: 1001;
    }

    .mega-panel.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .mega-column h4 {
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--color-primary);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .mega-column a {
      display: block;
      padding: 8px 10px;
      border-radius: 6px;
      color: var(--color-muted-dark);
      font-size: 14px;
      transition: all var(--transition-base);
      margin-bottom: 2px;
    }

    .mega-column a:hover {
      color: var(--color-text-on-dark);
      background-color: rgba(255, 255, 255, 0.05);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      border-radius: 6px;
      transition: background-color var(--transition-base);
    }

    .hamburger:hover {
      background-color: rgba(255, 255, 255, 0.06);
    }

    .hamburger span {
      width: 24px;
      height: 2px;
      background-color: var(--color-text-on-dark);
      border-radius: 2px;
      transition: all var(--transition-base);
      transform-origin: center;
    }

    .hamburger.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-menu {
      display: none;
      background-color: #161f2d;
      border-top: 1px solid var(--color-border-dark);
      padding: 20px 16px 28px;
      max-height: calc(100vh - 68px);
      overflow-y: auto;
    }

    .mobile-menu .nav-link,
    .mobile-menu .mega-trigger {
      display: block;
      width: 100%;
      text-align: left;
      padding: 14px 12px;
      border-radius: 8px;
      font-size: 15px;
    }

    /* Hero 首屏 */
    .hero {
      background-color: var(--color-bg-deep);
      background-image:
        radial-gradient(ellipse at 20% 15%, rgba(0, 217, 165, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse at 80% 75%, rgba(124, 111, 240, 0.06) 0%, transparent 50%),
        url('/assets/images/2c69b06a80d362e8.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      padding: 80px 0 72px;
      position: relative;
      overflow: hidden;
    }

    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(15, 20, 30, 0.7) 0%, rgba(15, 20, 30, 0.88) 100%);
      pointer-events: none;
    }

    .hero .container {
      position: relative;
      z-index: 1;
    }

    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 28px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      border-radius: 100px;
      background-color: rgba(0, 217, 165, 0.1);
      border: 1px solid rgba(0, 217, 165, 0.25);
      color: var(--color-primary);
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.5px;
    }

    .hero-title {
      font-size: 44px;
      font-weight: 700;
      line-height: 1.22;
      color: var(--color-text-on-dark);
      max-width: 780px;
      letter-spacing: 0.5px;
    }

    .hero-title .highlight {
      color: var(--color-primary);
      background: linear-gradient(135deg, var(--color-primary) 0%, #7ce8c9 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-muted-dark);
      max-width: 760px;
      margin: 0 auto;
    }

    .hero-action-row {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: center;
      margin-top: 4px;
    }

    .hero-stage {
      width: 100%;
      max-width: 960px;
      margin: 16px auto 0;
      display: grid;
      grid-template-columns: 220px 1fr 220px;
      gap: 20px;
      align-items: stretch;
    }

    .hero-side {
      display: flex;
      flex-direction: column;
      gap: 12px;
      justify-content: center;
    }

    .value-point {
      background-color: rgba(26, 35, 50, 0.8);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 14px 16px;
      text-align: left;
      transition: all var(--transition-base);
    }

    .value-point:hover {
      border-color: rgba(0, 217, 165, 0.4);
      box-shadow: var(--shadow-teal);
      transform: translateY(-2px);
    }

    .value-point .vp-label {
      font-size: 12px;
      color: var(--color-primary);
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 4px;
    }

    .value-point .vp-text {
      font-size: 14px;
      color: var(--color-text-on-dark);
      line-height: 1.6;
    }

    .stage-card {
      background-color: rgba(26, 35, 50, 0.92);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }

    .stage-card .match-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }

    .stage-card .match-league {
      font-size: 13px;
      color: var(--color-primary);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    .stage-card .match-time {
      font-size: 13px;
      color: var(--color-muted-dark);
    }

    .stage-card .match-teams {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 24px;
    }

    .match-team {
      flex: 1;
      text-align: center;
    }

    .match-team .team-logo {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: rgba(0, 217, 165, 0.12);
      border: 2px solid rgba(0, 217, 165, 0.35);
      margin: 0 auto 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-text-on-dark);
      font-size: 16px;
    }

    .match-team .team-name {
      font-size: 14px;
      color: var(--color-text-on-dark);
      font-weight: 500;
    }

    .match-vs {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-accent);
      letter-spacing: 1px;
    }

    .stage-card .odds-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 20px;
    }

    .odds-item {
      text-align: center;
      padding: 10px 8px;
      border-radius: var(--radius-sm);
      background-color: rgba(255, 255, 255, 0.04);
    }

    .odds-item .odds-label {
      font-size: 11px;
      color: var(--color-muted-dark);
      letter-spacing: 0.5px;
    }

    .odds-item .odds-value {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
    }

    .stage-card .trend-bar {
      height: 6px;
      background-color: rgba(255, 255, 255, 0.08);
      border-radius: 6px;
      overflow: hidden;
    }

    .trend-bar .fill {
      height: 100%;
      width: 62%;
      background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
      border-radius: 6px;
    }

    .hero-side .btn {
      width: 100%;
      justify-content: center;
    }

    /* 按钮体系 */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.5px;
      cursor: pointer;
      border: none;
      transition: all var(--transition-base);
      text-decoration: none;
      line-height: 1.2;
    }

    .btn-primary {
      background-color: var(--color-primary);
      color: #06261f;
    }

    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      box-shadow: var(--shadow-teal);
      transform: translateY(-1px);
      color: #06261f;
    }

    .btn-primary:focus {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    .btn-primary:active {
      transform: scale(0.98);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--color-primary);
      border: 1.5px solid var(--color-primary);
    }

    .btn-outline:hover {
      background-color: rgba(0, 217, 165, 0.1);
      box-shadow: var(--shadow-teal);
      transform: translateY(-1px);
      color: var(--color-primary);
    }

    .btn-outline:focus {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    .btn-outline:active {
      transform: scale(0.98);
    }

    .btn-cta {
      background-color: var(--color-accent);
      color: #fff;
    }

    .btn-cta:hover {
      background-color: #e06f28;
      box-shadow: 0 8px 24px rgba(255, 138, 61, 0.3);
      transform: translateY(-1px);
      color: #fff;
    }

    .btn-cta:focus {
      outline: 2px solid var(--color-accent);
      outline-offset: 2px;
    }

    .btn-cta:active {
      transform: scale(0.98);
    }

    .btn-sm {
      padding: 8px 16px;
      font-size: 13px;
    }

    .btn-lg {
      padding: 15px 32px;
      font-size: 16px;
    }

    /* 板块通用 */
    .section {
      padding: var(--section-padding);
    }

    .section-dark {
      background-color: var(--color-bg-deep);
      color: var(--color-text-on-dark);
    }

    .section-light {
      background-color: var(--color-bg-light);
      color: var(--color-text-on-light);
    }

    .section-gray {
      background-color: #eef2f1;
    }

    .section-head {
      margin-bottom: 40px;
    }

    .section-head.center {
      text-align: center;
    }

    .section-title {
      font-size: 30px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-dark .section-title {
      color: var(--color-text-on-dark);
    }

    .section-light .section-title {
      color: var(--color-text-on-light);
    }

    .section-sub {
      font-size: 15px;
      line-height: 1.8;
      color: var(--color-muted-dark);
      max-width: 680px;
    }

    .section-light .section-sub {
      color: var(--color-muted-light);
    }

    .section-head.center .section-sub {
      margin: 0 auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--color-primary);
      margin-bottom: 10px;
    }

    /* KPI 数据条 */
    .kpi-strip {
      background-color: var(--color-bg-deep-2);
      padding: 30px 0;
      border-bottom: 1px solid var(--color-border-dark);
    }

    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .kpi-item {
      text-align: center;
      padding: 12px;
    }

    .kpi-number {
      font-size: 32px;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: 0.5px;
      line-height: 1.2;
    }

    .kpi-label {
      font-size: 13px;
      color: var(--color-muted-dark);
      margin-top: 6px;
    }

    /* 痛点卡片 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .pain-card {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all var(--transition-base);
    }

    .pain-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: rgba(0, 217, 165, 0.25);
    }

    .pain-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      background-color: rgba(124, 111, 240, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      font-size: 18px;
    }

    .pain-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-on-light);
      margin-bottom: 8px;
    }

    .pain-card p {
      font-size: 14px;
      color: var(--color-muted-light);
      line-height: 1.7;
    }

    /* 解决方案卡片 */
    .solution-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .solution-card {
      background-color: rgba(26, 35, 50, 0.6);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all var(--transition-base);
    }

    .solution-card:hover {
      border-color: rgba(0, 217, 165, 0.4);
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
      background-color: rgba(26, 35, 50, 0.8);
    }

    .solution-card .sol-num {
      font-size: 12px;
      font-weight: 700;
      color: var(--color-accent);
      letter-spacing: 1px;
      margin-bottom: 10px;
    }

    .solution-card h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--color-text-on-dark);
      margin-bottom: 8px;
    }

    .solution-card p {
      font-size: 14px;
      color: var(--color-muted-dark);
      line-height: 1.7;
    }

    /* 步骤流程 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      counter-reset: step;
    }

    .step-card {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      transition: all var(--transition-base);
      counter-increment: step;
    }

    .step-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: rgba(0, 217, 165, 0.3);
    }

    .step-card::before {
      content: counter(step);
      position: absolute;
      top: 18px;
      right: 20px;
      font-size: 42px;
      font-weight: 700;
      color: rgba(0, 217, 165, 0.1);
      line-height: 1;
    }

    .step-card .step-label {
      font-size: 12px;
      font-weight: 600;
      color: var(--color-primary);
      letter-spacing: 1px;
      margin-bottom: 8px;
      text-transform: uppercase;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-on-light);
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--color-muted-light);
      line-height: 1.7;
    }

    /* 成果数据 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .metric-card {
      background-color: rgba(26, 35, 50, 0.6);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: all var(--transition-base);
    }

    .metric-card:hover {
      border-color: rgba(0, 217, 165, 0.35);
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }

    .metric-card .metric-value {
      font-size: 36px;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.2;
      letter-spacing: 0.5px;
      margin-bottom: 6px;
    }

    .metric-card .metric-label {
      font-size: 15px;
      color: var(--color-text-on-dark);
      font-weight: 500;
      margin-bottom: 4px;
    }

    .metric-card .metric-note {
      font-size: 13px;
      color: var(--color-muted-dark);
      line-height: 1.6;
    }

    /* 证言卡片 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .testimonial-card {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      transition: all var(--transition-base);
    }

    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .testimonial-card blockquote {
      font-size: 14px;
      color: var(--color-muted-light);
      line-height: 1.7;
      flex: 1;
      font-style: normal;
    }

    .testimonial-card .testimonial-author {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .testimonial-card .avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background-color: rgba(124, 111, 240, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-purple);
    }

    .testimonial-card .author-name {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text-on-light);
    }

    .testimonial-card .author-title {
      font-size: 12px;
      color: var(--color-muted-light);
    }

    /* 适用人群 */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .audience-card {
      background-color: rgba(26, 35, 50, 0.55);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
      transition: all var(--transition-base);
    }

    .audience-card:hover {
      border-color: rgba(0, 217, 165, 0.35);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .audience-card .aud-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: rgba(0, 217, 165, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
      font-size: 20px;
    }

    .audience-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-on-dark);
      margin-bottom: 8px;
    }

    .audience-card p {
      font-size: 13px;
      color: var(--color-muted-dark);
      line-height: 1.7;
    }

    /* 品牌介绍 */
    .brand-section {
      background-color: #e9eeec;
      padding: var(--section-padding);
    }

    .brand-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .brand-text h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--color-text-on-light);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }

    .brand-text p {
      font-size: 15px;
      color: var(--color-muted-light);
      line-height: 1.85;
      margin-bottom: 12px;
    }

    .brand-text .brand-highlight {
      color: var(--color-primary-dark);
      font-weight: 500;
    }

    .brand-image {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      min-height: 260px;
      background-image: url('/assets/images/db1d8e2ec89a1b1d.webp');
      background-size: cover;
      background-position: center;
    }

    /* 热门赛事 */
    .event-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .event-card {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-base);
    }

    .event-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
      border-color: rgba(0, 217, 165, 0.25);
    }

    .event-card .event-img {
      position: relative;
      aspect-ratio: 16/9;
      overflow: hidden;
    }

    .event-card .event-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition-smooth);
    }

    .event-card:hover .event-img img {
      transform: scale(1.04);
    }

    .event-card .event-img .event-league {
      position: absolute;
      top: 12px;
      left: 12px;
      padding: 4px 12px;
      border-radius: 100px;
      background-color: rgba(15, 20, 30, 0.8);
      color: var(--color-primary);
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 0.5px;
    }

    .event-card .event-body {
      padding: 18px 18px 20px;
    }

    .event-card .event-matchup {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-on-light);
      margin-bottom: 6px;
    }

    .event-card .event-time {
      font-size: 13px;
      color: var(--color-muted-light);
      margin-bottom: 10px;
    }

    .event-card .event-index {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .event-card .index-bar {
      flex: 1;
      height: 5px;
      background-color: #e5e9e8;
      border-radius: 5px;
      overflow: hidden;
    }

    .event-card .index-bar .fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
      border-radius: 5px;
    }

    .event-card .index-value {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-accent);
      white-space: nowrap;
    }

    /* 数据指标 */
    .stats-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .stat-item {
      background-color: rgba(26, 35, 50, 0.6);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      align-items: center;
      gap: 14px;
      transition: all var(--transition-base);
    }

    .stat-item:hover {
      border-color: rgba(0, 217, 165, 0.35);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .stat-item .stat-chip {
      width: 46px;
      height: 46px;
      border-radius: var(--radius-sm);
      background-color: rgba(0, 217, 165, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }

    .stat-item .stat-info .stat-name {
      font-size: 14px;
      color: var(--color-text-on-dark);
      font-weight: 500;
      margin-bottom: 2px;
    }

    .stat-item .stat-info .stat-value {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
    }

    /* 专题入口 */
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .topic-card {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      transition: all var(--transition-base);
    }

    .topic-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: rgba(0, 217, 165, 0.3);
    }

    .topic-card .topic-icon {
      font-size: 22px;
      margin-bottom: 4px;
    }

    .topic-card h3 {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-text-on-light);
    }

    .topic-card p {
      font-size: 13px;
      color: var(--color-muted-light);
      line-height: 1.6;
    }

    /* 新闻资讯 */
    .news-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .news-item {
      background-color: rgba(26, 35, 50, 0.55);
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      display: flex;
      align-items: flex-start;
      gap: 18px;
      transition: all var(--transition-base);
    }

    .news-item:hover {
      border-color: rgba(0, 217, 165, 0.3);
      background-color: rgba(26, 35, 50, 0.75);
      transform: translateY(-2px);
    }

    .news-item .news-date {
      flex-shrink: 0;
      text-align: center;
      background-color: rgba(0, 217, 165, 0.08);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      min-width: 70px;
    }

    .news-item .news-date .day {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.1;
    }

    .news-item .news-date .month {
      font-size: 12px;
      color: var(--color-muted-dark);
    }

    .news-item .news-content {
      flex: 1;
    }

    .news-item .news-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-text-on-dark);
      margin-bottom: 6px;
      line-height: 1.5;
    }

    .news-item .news-summary {
      font-size: 14px;
      color: var(--color-muted-dark);
      line-height: 1.7;
      margin-bottom: 8px;
    }

    .news-item .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: all var(--transition-base);
    }

    .news-item .news-link:hover {
      color: var(--color-primary-dark);
      gap: 8px;
    }

    /* FAQ */
    .faq-list {
      max-width: 760px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .faq-item {
      background-color: var(--color-bg-card-light);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-base);
    }

    .faq-item:hover {
      border-color: rgba(0, 217, 165, 0.3);
    }

    .faq-item.open {
      border-color: rgba(0, 217, 165, 0.4);
      box-shadow: var(--shadow-teal);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 20px;
      background: none;
      border: none;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-text-on-light);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      transition: color var(--transition-base);
    }

    .faq-question:hover {
      color: var(--color-primary-dark);
    }

    .faq-question:focus {
      outline: 2px solid var(--color-primary);
      outline-offset: -2px;
      border-radius: var(--radius-md);
    }

    .faq-question .faq-toggle {
      flex-shrink: 0;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      border: 1.5px solid #d0d7d5;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: all var(--transition-base);
      color: var(--color-muted-light);
    }

    .faq-item.open .faq-toggle {
      border-color: var(--color-primary);
      background-color: var(--color-primary);
      color: #06261f;
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
      padding: 0 20px;
    }

    .faq-item.open .faq-answer {
      max-height: 200px;
      padding: 0 20px 18px;
    }

    .faq-answer p {
      font-size: 14px;
      color: var(--color-muted-light);
      line-height: 1.75;
    }

    /* 转化 CTA */
    .cta-section {
      background-color: var(--color-bg-deep);
      padding: var(--section-padding);
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(0, 217, 165, 0.1) 0%, transparent 65%);
      pointer-events: none;
    }

    .cta-inner {
      text-align: center;
      position: relative;
      z-index: 1;
    }

    .cta-inner h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--color-text-on-dark);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .cta-inner p {
      font-size: 15px;
      color: var(--color-muted-dark);
      max-width: 560px;
      margin: 0 auto 24px;
      line-height: 1.8;
    }

    .cta-inner .btn {
      margin: 0 6px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0a0e16;
      color: var(--color-text-on-dark);
      padding: 56px 0 32px;
      border-top: 1px solid var(--color-border-dark);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand .logo {
      margin-bottom: 14px;
    }

    .footer-brand .footer-desc {
      font-size: 14px;
      color: var(--color-muted-dark);
      line-height: 1.8;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text-on-dark);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 8px;
    }

    .footer-col ul li a {
      font-size: 13px;
      color: var(--color-muted-dark);
      transition: color var(--transition-base);
    }

    .footer-col ul li a:hover {
      color: var(--color-primary);
    }

    .footer-bottom {
      border-top: 1px solid var(--color-border-dark);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 13px;
      color: var(--color-muted-dark);
    }

    .footer-bottom a {
      color: var(--color-muted-dark);
      transition: color var(--transition-base);
    }

    .footer-bottom a:hover {
      color: var(--color-primary);
    }

    .footer-bottom .legal-links {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .nav-wrapper {
        gap: 16px;
      }
      .nav-link,
      .mega-trigger {
        padding: 8px 10px;
        font-size: 13px;
      }
      .hero-stage {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .hero-side {
        flex-direction: row;
        flex-wrap: wrap;
      }
      .hero-side .value-point {
        flex: 1;
        min-width: 180px;
      }
      .kpi-grid,
      .pain-grid,
      .solution-grid,
      .steps-grid,
      .testimonial-grid,
      .audience-grid,
      .topic-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid,
      .stats-list {
        grid-template-columns: repeat(2, 1fr);
      }
      .event-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .brand-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: var(--section-padding-mobile);
      }
      .site-header {
        min-height: 60px;
      }
      .header-inner {
        min-height: 60px;
        gap: 12px;
      }
      .nav-menu {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .mobile-menu {
        display: block;
      }
      .hero {
        padding: 56px 0 48px;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-sub {
        font-size: 14px;
        line-height: 1.75;
      }
      .section-title {
        font-size: 24px;
      }
      .kpi-grid,
      .pain-grid,
      .solution-grid,
      .steps-grid,
      .testimonial-grid,
      .audience-grid,
      .topic-grid,
      .metrics-grid,
      .stats-list,
      .event-grid {
        grid-template-columns: 1fr;
      }
      .kpi-number {
        font-size: 26px;
      }
      .metric-card .metric-value {
        font-size: 28px;
      }
      .news-item {
        flex-direction: column;
        gap: 10px;
        padding: 16px;
      }
      .news-item .news-date {
        display: inline-flex;
        gap: 6px;
        align-items: baseline;
        min-width: auto;
        padding: 4px 10px;
      }
      .news-item .news-date .day {
        font-size: 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }
      .cta-inner h2 {
        font-size: 22px;
      }
      .btn-lg {
        padding: 12px 24px;
        font-size: 14px;
      }
      .mega-panel {
        width: 100%;
        position: static;
        margin-top: 8px;
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .hero-title {
        font-size: 28px;
      }
      .hero-badge {
        font-size: 12px;
        padding: 6px 14px;
      }
      .hero-action-row {
        flex-direction: column;
        width: 100%;
      }
      .hero-action-row .btn {
        width: 100%;
        justify-content: center;
      }
      .section-title {
        font-size: 21px;
      }
      .section-sub {
        font-size: 14px;
      }
      .container {
        padding: 0 16px;
      }
    }

/* roulang page: category2 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }
        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 14px;
            border-radius: 6px;
            cursor: pointer;
            background: none;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }
        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
        }
        .mega-trigger.open .arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }
        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }
        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .mega-column a:hover {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.06);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }
        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 1px;
            transition: all var(--transition-base);
        }
        .mobile-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .mobile-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        @media(max-width: 1024px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: rgba(15, 20, 30, 0.98);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--color-border-dark);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-menu.mobile-open {
                display: flex;
            }
            .nav-item {
                width: 100%;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .mega-trigger {
                display: none;
            }
            .mega-panel {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
        }
        .page-header {
            background: linear-gradient(135deg, var(--color-bg-deep) 0%, #1a2434 100%);
            padding: 60px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.15) 0%, transparent 70%);
        }
        .page-header::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 111, 240, 0.12) 0%, transparent 70%);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted-dark);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }
        .page-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
            line-height: 1.25;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .page-header p {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 720px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        .section {
            padding: var(--section-padding);
        }
        .section-light {
            background-color: var(--color-bg-light);
        }
        .section-dark {
            background-color: var(--color-bg-deep);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-light);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-dark .section-title {
            color: var(--color-text-on-dark);
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-muted-light);
            margin-bottom: 36px;
            max-width: 680px;
            line-height: 1.75;
        }
        .section-dark .section-subtitle {
            color: var(--color-muted-dark);
        }
        .analysis-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .analysis-card {
            background: var(--color-bg-card-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .analysis-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(0, 217, 165, 0.25);
        }
        .analysis-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .analysis-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .analysis-card:hover .card-img img {
            transform: scale(1.04);
        }
        .analysis-card .card-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background-color: rgba(15, 20, 30, 0.75);
            backdrop-filter: blur(8px);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.5px;
        }
        .analysis-card .card-body {
            padding: 20px 22px 22px;
        }
        .analysis-card .card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .analysis-card .card-body p {
            font-size: 13.5px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--color-muted-light);
        }
        .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .card-meta .dot {
            width: 4px;
            height: 4px;
            background-color: var(--color-primary);
            border-radius: 50%;
            display: inline-block;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            border: none;
            transition: all var(--transition-base);
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
        }
        .btn-primary:hover {
            background-color: #00e6b0;
            color: #06261f;
            box-shadow: var(--shadow-teal);
        }
        .btn-primary:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(0, 217, 165, 0.08);
            color: var(--color-primary);
            box-shadow: var(--shadow-teal);
        }
        .btn-outline:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background-color: var(--color-accent);
            color: #ffffff;
        }
        .btn-accent:hover {
            background-color: #ff9a55;
            color: #ffffff;
            box-shadow: 0 8px 24px rgba(255, 138, 61, 0.25);
        }
        .btn-accent:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .dimension-card {
            background: var(--color-bg-card-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: all var(--transition-smooth);
        }
        .dimension-card:hover {
            border-color: rgba(0, 217, 165, 0.35);
            box-shadow: 0 8px 28px rgba(0, 217, 165, 0.1);
            transform: translateY(-2px);
        }
        .dimension-card .icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: rgba(0, 217, 165, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
            color: var(--color-primary);
        }
        .dimension-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .dimension-card p {
            font-size: 13px;
            color: var(--color-muted-dark);
            line-height: 1.7;
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: var(--color-bg-card-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.25);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--color-muted-light);
            margin-top: 6px;
            letter-spacing: 0.5px;
        }
        .stat-trend {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary-dark);
            margin-top: 8px;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(0, 217, 165, 0.08);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all var(--transition-smooth);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: rgba(0, 217, 165, 0.2);
        }
        .news-date {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary-dark);
            flex-shrink: 0;
            min-width: 80px;
            letter-spacing: 0.5px;
        }
        .news-content {
            flex: 1;
        }
        .news-content h3 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .news-content p {
            font-size: 13px;
            color: var(--color-muted-light);
            line-height: 1.65;
            margin-bottom: 8px;
        }
        .news-content .read-more {
            font-size: 12px;
            color: var(--color-primary-dark);
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: color var(--transition-base);
        }
        .news-content .read-more:hover {
            color: var(--color-primary);
        }
        .topic-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 160px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 20, 30, 0.15) 0%, rgba(15, 20, 30, 0.85) 100%);
            display: flex;
            align-items: flex-end;
            padding: 18px 20px;
        }
        .topic-card .overlay h3 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .faq-section {
            background-color: var(--color-bg-light);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(0, 217, 165, 0.25);
        }
        .faq-item.open {
            border-color: rgba(0, 217, 165, 0.35);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            letter-spacing: 0.3px;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(0, 217, 165, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--color-primary-dark);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 22px 18px 22px;
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.8;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-deep-2) 0%, #1a2434 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.1) 0%, transparent 70%);
        }
        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .cta-inner p {
            font-size: 15px;
            color: var(--color-muted-dark);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.75;
        }
        .site-footer {
            background-color: var(--color-bg-deep);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--color-muted-dark);
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 13px;
            color: var(--color-muted-dark);
            flex-wrap: wrap;
            gap: 12px;
        }
        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .legal-links a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .legal-links a:hover {
            color: var(--color-primary);
        }
        .legal-links span {
            color: rgba(255, 255, 255, 0.25);
        }
        @media(max-width: 1024px) {
            .analysis-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }
        @media(max-width: 768px) {
            .page-header {
                padding: 40px 0 32px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 22px;
            }
            .analysis-grid {
                grid-template-columns: 1fr;
            }
            .dimension-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .topic-row {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .mega-panel {
                display: none;
            }
        }
        @media(max-width: 520px) {
            .header-inner {
                gap: 12px;
            }
            .logo-text {
                font-size: 15px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 26px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }
        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 12px;
            line-height: 1.3;
            font-weight: 700;
            color: inherit;
        }
        p {
            margin: 0 0 12px;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 站点头部 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }
        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            background: none;
            border: none;
        }
        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
        }
        .mega-trigger[aria-expanded="true"] .arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }
        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }
        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .mega-column a:hover {
            background-color: rgba(0, 217, 165, 0.08);
            color: var(--color-primary);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(15, 20, 30, 0.97);
            z-index: 999;
            padding: 20px;
            overflow-y: auto;
            flex-direction: column;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            color: var(--color-text-on-dark);
            border-bottom: 1px solid var(--color-border-dark);
            transition: all var(--transition-base);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.06);
        }
        /* 面包屑 */
        .breadcrumb-section {
            background-color: var(--color-bg-deep);
            padding: 36px 0 28px;
            border-bottom: 1px solid var(--color-border-dark);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted-dark);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
        }
        .breadcrumb .current {
            color: var(--color-primary);
        }
        .category-hero {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .category-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .category-hero p {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        /* 浅色板块通用 */
        .section-light {
            background-color: var(--color-bg-light);
            padding: var(--section-padding);
        }
        .section-dark {
            background-color: var(--color-bg-deep);
            padding: var(--section-padding);
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-light);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .section-dark .section-title {
            color: var(--color-text-on-dark);
        }
        .section-desc {
            font-size: 15px;
            color: var(--color-muted-light);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .section-dark .section-desc {
            color: var(--color-muted-dark);
        }
        /* 赛事卡片列表 */
        .matches-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }
        .match-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .match-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.2);
        }
        .match-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #e5e7eb;
        }
        .match-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .match-card:hover .match-card-image img {
            transform: scale(1.03);
        }
        .match-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(15, 20, 30, 0.85);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
        }
        .match-card-body {
            padding: 16px 18px 18px;
        }
        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
        }
        .team-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
        }
        .versus {
            font-size: 13px;
            color: var(--color-muted-light);
            font-weight: 500;
            flex-shrink: 0;
        }
        .match-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--color-muted-light);
            margin-bottom: 12px;
        }
        .match-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .match-meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-primary);
        }
        .match-index {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background-color: rgba(0, 217, 165, 0.06);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--color-muted-light);
        }
        .match-index .value {
            font-weight: 700;
            color: var(--color-primary-dark);
            font-size: 15px;
        }
        /* 玩法说明 */
        .play-types {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 8px;
        }
        .play-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-smooth);
        }
        .play-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .play-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background-color: rgba(0, 217, 165, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 14px;
            font-size: 16px;
        }
        .play-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 8px;
        }
        .play-card p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.75;
            margin-bottom: 0;
        }
        /* 数据指标 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .metric-card {
            background-color: var(--color-bg-card-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .metric-card:hover {
            border-color: rgba(0, 217, 165, 0.25);
        }
        .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 13px;
            color: var(--color-muted-dark);
            letter-spacing: 0.5px;
        }
        /* 资讯列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-row {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition-smooth);
        }
        .news-row:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.15);
        }
        .news-date {
            flex-shrink: 0;
            background-color: rgba(0, 217, 165, 0.08);
            color: var(--color-primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            white-space: nowrap;
        }
        .news-content {
            flex: 1;
        }
        .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 4px;
        }
        .news-summary {
            font-size: 13px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-readmore {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary-dark);
            transition: color var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-readmore:hover {
            color: var(--color-primary);
        }
        .news-readmore::after {
            content: '→';
            font-size: 14px;
            transition: transform var(--transition-base);
        }
        .news-readmore:hover::after {
            transform: translateX(3px);
        }
        /* 专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 18px;
        }
        .topic-card {
            position: relative;
            aspect-ratio: 4/3;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .topic-card:hover img {
            transform: scale(1.05);
        }
        .topic-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 50px 18px 16px;
            background: linear-gradient(to top, rgba(15, 20, 30, 0.9) 0%, rgba(15, 20, 30, 0.4) 60%, transparent 100%);
        }
        .topic-name {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .topic-name span {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-primary);
            margin-top: 2px;
            letter-spacing: 0.3px;
        }
        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: rgba(0, 217, 165, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            letter-spacing: 0.3px;
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: rgba(0, 217, 165, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary-dark);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background-color: rgba(0, 217, 165, 0.2);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
            color: var(--color-muted-light);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }
        /* CTA 区域 */
        .cta-section {
            background-color: var(--color-bg-deep);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 138, 61, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
        }
        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .cta-inner p {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            border: 1.5px solid transparent;
            position: relative;
        }
        .btn:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.98);
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
            box-shadow: var(--shadow-teal);
        }
        .btn-primary:hover {
            background-color: #00e8b0;
            color: #031a14;
            box-shadow: 0 10px 32px rgba(0, 217, 165, 0.22);
        }
        .btn-accent {
            background-color: var(--color-accent);
            color: #fff;
            box-shadow: 0 8px 28px rgba(255, 138, 61, 0.18);
        }
        .btn-accent:hover {
            background-color: #ff9a55;
            box-shadow: 0 10px 32px rgba(255, 138, 61, 0.25);
        }
        .btn-outline {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background-color: transparent;
        }
        .btn-outline:hover {
            background-color: rgba(0, 217, 165, 0.08);
            color: var(--color-primary);
            box-shadow: var(--shadow-teal);
        }
        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }
        /* 页脚 */
        .site-footer {
            background-color: var(--color-bg-deep-2);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand .logo-text {
            color: var(--color-text-on-dark);
        }
        .footer-desc {
            font-size: 14px;
            color: var(--color-muted-dark);
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 13px;
            color: var(--color-muted-dark);
            flex-wrap: wrap;
        }
        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .legal-links a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .legal-links a:hover {
            color: var(--color-primary);
        }
        .legal-links span {
            color: rgba(255, 255, 255, 0.2);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 2px;
            }
            .nav-link {
                padding: 10px 10px;
                font-size: 13px;
            }
            .mega-trigger {
                padding: 10px 10px;
                font-size: 13px;
            }
            .mega-panel {
                width: 480px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-wrapper {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero p {
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .matches-grid {
                grid-template-columns: 1fr;
            }
            .play-types {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-row {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            :root {
                --section-padding: 48px 0;
                --section-padding-mobile: 40px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                min-height: 56px;
                gap: 12px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 12px;
                border-radius: 7px;
            }
            .mobile-nav {
                top: 56px;
            }
            .breadcrumb-section {
                padding: 24px 0 20px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero p {
                font-size: 14px;
                line-height: 1.7;
            }
            .section-title {
                font-size: 20px;
            }
            .match-card-body {
                padding: 12px 14px 14px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-value {
                font-size: 26px;
            }
            .metric-card {
                padding: 14px 10px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .btn-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-group .btn {
                justify-content: center;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }
        /* 辅助类 */
        .text-primary {
            color: var(--color-primary) !important;
        }
        .text-accent {
            color: var(--color-accent) !important;
        }
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

/* roulang page: category3 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }
        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            background: none;
            border: none;
        }
        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }
        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }
        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .mega-column a:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.06);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: background-color var(--transition-base);
        }
        .hamburger:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(15, 20, 30, 0.98);
            padding: 20px;
            overflow-y: auto;
            z-index: 999;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .nav-menu {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }
        .mobile-menu .nav-link {
            padding: 14px 16px;
            font-size: 16px;
        }
        .mobile-menu .mega-trigger {
            width: 100%;
            justify-content: space-between;
            padding: 14px 16px;
            font-size: 16px;
        }
        .mobile-menu .mega-panel {
            position: static;
            width: 100%;
            opacity: 1;
            visibility: visible;
            transform: none;
            display: grid;
            margin-top: 8px;
            background-color: rgba(26, 35, 50, 0.8);
        }

        section {
            padding: var(--section-padding);
        }

        .section-head {
            margin-bottom: 32px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .section-tag::before {
            content: '';
            display: inline-block;
            width: 16px;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: inherit;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--color-muted-light);
            line-height: 1.75;
            max-width: 720px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            text-align: center;
            line-height: 1.4;
        }
        .btn:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.98);
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
        }
        .btn-primary:hover {
            background-color: #00c99a;
            color: #06261f;
            box-shadow: var(--shadow-teal);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(0, 217, 165, 0.1);
            color: var(--color-primary);
        }
        .btn-accent {
            background-color: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background-color: #ff7a1f;
            color: #fff;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-outline-dark {
            background-color: transparent;
            color: var(--color-muted-dark);
            border: 1px solid var(--color-border-dark);
        }
        .btn-outline-dark:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--color-text-on-dark);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--color-text-on-light);
            border: 1.5px solid rgba(17, 24, 39, 0.2);
        }
        .btn-outline-light:hover {
            background-color: rgba(17, 24, 39, 0.04);
            color: var(--color-text-on-light);
            border-color: var(--color-primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted-dark);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-muted-dark);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: rgba(148, 163, 184, 0.5);
        }

        .page-hero {
            background: linear-gradient(135deg, var(--color-bg-deep) 0%, #162033 50%, #0f1a2a 100%);
            padding: 56px 0 48px;
            color: var(--color-text-on-dark);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -15%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 111, 240, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            color: var(--color-text-on-dark);
        }
        .page-hero .hero-desc {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 680px;
            line-height: 1.75;
        }
        .page-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
            background-color: rgba(0, 217, 165, 0.12);
            color: var(--color-primary);
            border: 1px solid rgba(0, 217, 165, 0.25);
        }

        .card {
            background-color: var(--color-bg-card-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .team-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #e9ecef;
            position: relative;
        }
        .team-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .team-card:hover .card-image img {
            transform: scale(1.03);
        }
        .team-card .card-body {
            padding: 20px;
        }
        .team-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .team-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }
        .team-card .card-meta .tag {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 16px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background-color: rgba(0, 217, 165, 0.1);
            color: #00a178;
        }
        .team-card .card-meta .tag.orange {
            background-color: rgba(255, 138, 61, 0.12);
            color: #d96b1f;
        }
        .team-card .card-meta .tag.purple {
            background-color: rgba(124, 111, 240, 0.12);
            color: #6c5ce0;
        }
        .team-card .card-stats {
            display: flex;
            gap: 16px;
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
            margin-top: 4px;
        }
        .team-card .stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .team-card .stat .stat-label {
            font-size: 12px;
            color: var(--color-muted-light);
        }
        .team-card .stat .stat-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-on-light);
            letter-spacing: 0.3px;
        }
        .team-card .stat .stat-value.highlight {
            color: var(--color-primary);
        }

        .data-panel {
            background-color: var(--color-bg-deep);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            color: var(--color-text-on-dark);
            border: 1px solid var(--color-border-dark);
            box-shadow: var(--shadow-lg);
        }
        .data-panel .panel-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-dark);
            gap: 16px;
        }
        .data-row:last-child {
            border-bottom: none;
        }
        .data-row .data-label {
            font-size: 14px;
            color: var(--color-muted-dark);
            flex-shrink: 0;
            min-width: 100px;
        }
        .data-row .data-bar {
            flex: 1;
            height: 8px;
            background-color: rgba(255, 255, 255, 0.06);
            border-radius: 4px;
            overflow: hidden;
            min-width: 80px;
        }
        .data-row .data-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--color-primary) 0%, #00b38a 100%);
            transition: width var(--transition-smooth);
        }
        .data-row .data-bar-fill.accent {
            background: linear-gradient(90deg, var(--color-accent) 0%, #ffaa66 100%);
        }
        .data-row .data-bar-fill.purple {
            background: linear-gradient(90deg, var(--color-purple) 0%, #9b8ff5 100%);
        }
        .data-row .data-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            min-width: 50px;
            text-align: right;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .metric-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-light);
            letter-spacing: 0.5px;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .metric-card .metric-value.teal {
            color: var(--color-primary-dark);
        }
        .metric-card .metric-value.orange {
            color: var(--color-accent);
        }
        .metric-card .metric-value.purple {
            color: var(--color-purple);
        }
        .metric-card .metric-label {
            font-size: 13px;
            color: var(--color-muted-light);
            letter-spacing: 0.3px;
        }
        .metric-card .metric-change {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 10px;
            margin-top: 8px;
            background-color: rgba(0, 217, 165, 0.1);
            color: #00a178;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--color-muted-light);
            white-space: nowrap;
            flex-shrink: 0;
            font-weight: 500;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 4px;
            letter-spacing: 0.2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-item .news-excerpt {
            font-size: 13px;
            color: var(--color-muted-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .btn-sm {
            flex-shrink: 0;
        }

        .topic-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .topic-card .topic-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            background-color: rgba(0, 217, 165, 0.1);
            color: var(--color-primary-dark);
            margin-bottom: 4px;
        }
        .topic-card .topic-icon.orange {
            background-color: rgba(255, 138, 61, 0.1);
            color: var(--color-accent);
        }
        .topic-card .topic-icon.purple {
            background-color: rgba(124, 111, 240, 0.1);
            color: var(--color-purple);
        }
        .topic-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-on-light);
            letter-spacing: 0.3px;
        }
        .topic-card p {
            font-size: 13px;
            color: var(--color-muted-light);
            line-height: 1.7;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .faq-item.open {
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 217, 165, 0.3);
        }
        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            letter-spacing: 0.3px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-base);
        }
        .faq-item .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
            transition: transform var(--transition-base);
        }
        .faq-item .faq-question .faq-icon::before,
        .faq-item .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .faq-item .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
        }
        .faq-item .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
        }
        .faq-item.open .faq-question .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            padding: 0 20px;
            color: var(--color-muted-light);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 16px;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-deep) 0%, #162033 100%);
            padding: 56px 0;
            color: var(--color-text-on-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 217, 165, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .cta-inner .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            color: var(--color-text-on-dark);
        }
        .cta-inner .cta-text p {
            font-size: 15px;
            color: var(--color-muted-dark);
            max-width: 500px;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .site-footer {
            background-color: var(--color-bg-deep);
            color: var(--color-text-on-dark);
            padding: 48px 0 28px;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo-text {
            font-size: 18px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--color-muted-dark);
            line-height: 1.75;
            margin-top: 12px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 13px;
            color: var(--color-muted-dark);
            flex-wrap: wrap;
            gap: 12px;
        }
        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .legal-links a {
            color: var(--color-muted-dark);
        }
        .legal-links a:hover {
            color: var(--color-primary);
        }
        .legal-links span {
            color: rgba(148, 163, 184, 0.4);
        }

        .section-bg-light {
            background-color: var(--color-bg-light);
        }
        .section-bg-dark {
            background-color: var(--color-bg-deep);
            color: var(--color-text-on-dark);
        }
        .section-bg-dark .section-title {
            color: var(--color-text-on-dark);
        }
        .section-bg-dark .section-desc {
            color: var(--color-muted-dark);
        }
        .section-bg-gray {
            background-color: #f0f3f2;
        }

        @media (max-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 22px;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .team-grid {
                grid-template-columns: 1fr;
            }
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card .metric-value {
                font-size: 22px;
            }
            .topic-cards {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .news-item .btn-sm {
                align-self: flex-end;
            }
            .data-panel {
                padding: 24px 18px;
            }
            .data-row {
                flex-wrap: wrap;
                gap: 8px;
            }
            .data-row .data-label {
                min-width: auto;
                flex-basis: 100%;
                font-size: 13px;
            }
            .data-row .data-bar {
                flex-basis: calc(100% - 80px);
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

        @media (max-width: 520px) {
            .metric-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 20px;
            }
            .page-hero h1 {
                font-size: 22px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .team-card .card-stats {
                flex-wrap: wrap;
                gap: 10px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 站点头部 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }

        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            background: none;
            border: none;
        }

        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }

        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }

        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }

        .mega-column a:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px 4px;
        }

        .menu-toggle span {
            width: 22px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 分类页标题区 */
        .page-hero {
            background: var(--color-bg-deep);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--color-border-dark);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 111, 240, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-muted-dark);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .sep {
            color: var(--color-muted-dark);
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--color-primary);
        }

        .page-hero-content {
            position: relative;
            z-index: 1;
        }

        .page-hero-content h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .page-hero-content h1 .highlight {
            color: var(--color-primary);
        }

        .page-hero-content p {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 680px;
            line-height: 1.8;
        }

        /* 通用板块 */
        .section {
            padding: var(--section-padding);
        }

        .section-dark {
            background-color: var(--color-bg-deep);
        }

        .section-light {
            background-color: var(--color-bg-light);
        }

        .section-alt {
            background-color: #eef3f1;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-light);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-dark .section-header h2 {
            color: var(--color-text-on-dark);
        }

        .section-header .subtitle {
            font-size: 15px;
            color: var(--color-muted-light);
            max-width: 620px;
            line-height: 1.7;
        }

        .section-dark .section-header .subtitle {
            color: var(--color-muted-dark);
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-dark .section-tag {
            color: var(--color-primary);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            color: #06261f;
            box-shadow: var(--shadow-teal);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline:hover {
            background-color: rgba(0, 217, 165, 0.1);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-accent {
            background-color: var(--color-accent);
            color: #1a1a1a;
        }

        .btn-accent:hover {
            background-color: #e6783a;
            color: #1a1a1a;
            box-shadow: 0 8px 24px rgba(255, 138, 61, 0.28);
            transform: translateY(-1px);
        }

        .btn-accent:active {
            transform: scale(0.98);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-block {
            width: 100%;
        }

        /* 卡片与网格 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .card-dark {
            background-color: var(--color-bg-card-dark);
            border-color: var(--color-border-dark);
            color: var(--color-text-on-dark);
        }

        .card-dark:hover {
            border-color: rgba(0, 217, 165, 0.3);
        }

        .card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background-color: #e2e8f0;
        }

        .card-body {
            padding: 20px;
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--color-text-on-light);
            line-height: 1.4;
        }

        .card-dark .card-body h3 {
            color: var(--color-text-on-dark);
        }

        .card-body p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .card-dark .card-body p {
            color: var(--color-muted-dark);
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--color-muted-light);
            flex-wrap: wrap;
        }

        .card-dark .card-meta {
            color: var(--color-muted-dark);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
        }

        .tag-primary {
            background-color: rgba(0, 217, 165, 0.12);
            color: var(--color-primary-dark);
            border: 1px solid rgba(0, 217, 165, 0.3);
        }

        .section-dark .tag-primary {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.1);
        }

        .tag-accent {
            background-color: rgba(255, 138, 61, 0.12);
            color: #e6783a;
            border: 1px solid rgba(255, 138, 61, 0.3);
        }

        .tag-purple {
            background-color: rgba(124, 111, 240, 0.12);
            color: var(--color-purple);
            border: 1px solid rgba(124, 111, 240, 0.3);
        }

        .tag-neutral {
            background-color: rgba(0, 0, 0, 0.05);
            color: var(--color-muted-light);
            border: 1px solid rgba(0, 0, 0, 0.08);
        }

        .section-dark .tag-neutral {
            background-color: rgba(255, 255, 255, 0.06);
            color: var(--color-muted-dark);
            border-color: var(--color-border-dark);
        }

        /* 联赛主列表卡片 */
        .league-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .league-card {
            display: grid;
            grid-template-columns: 260px 1fr;
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }

        .league-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .league-card-image {
            width: 100%;
            height: 100%;
            min-height: 200px;
            object-fit: cover;
            background-color: #e2e8f0;
        }

        .league-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .league-card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .league-card-body .desc {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .league-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .league-card-stats {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--color-muted-light);
        }

        .league-card-stats strong {
            color: var(--color-text-on-light);
            font-weight: 600;
        }

        /* 数据指标区 */
        .stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .section-dark .stat-card {
            background-color: var(--color-bg-card-dark);
            border-color: var(--color-border-dark);
        }

        .section-dark .stat-card .stat-number {
            color: var(--color-primary);
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--color-muted-light);
        }

        .section-dark .stat-card .stat-label {
            color: var(--color-muted-dark);
        }

        /* 资讯列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
        }

        .section-dark .news-item {
            background-color: var(--color-bg-card-dark);
            border-color: var(--color-border-dark);
        }

        .news-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--color-primary-dark);
            font-weight: 500;
            min-width: 90px;
            padding-top: 2px;
        }

        .section-dark .news-date {
            color: var(--color-primary);
        }

        .news-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .section-dark .news-content h4 {
            color: var(--color-text-on-dark);
        }

        .news-content p {
            font-size: 13px;
            color: var(--color-muted-light);
            line-height: 1.7;
        }

        .section-dark .news-content p {
            color: var(--color-muted-dark);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .section-dark .faq-item {
            background-color: var(--color-bg-card-dark);
            border-color: var(--color-border-dark);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all var(--transition-base);
        }

        .section-dark .faq-question {
            color: var(--color-text-on-dark);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

        .section-dark .faq-question .faq-icon {
            border-color: var(--color-border-dark);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background-color: rgba(0, 217, 165, 0.1);
            border-color: var(--color-primary);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.8;
            display: none;
        }

        .section-dark .faq-answer {
            color: var(--color-muted-dark);
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* CTA区域 */
        .cta-section {
            background-color: var(--color-bg-deep);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 15px;
            color: var(--color-muted-dark);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--color-bg-deep);
            padding: 48px 0 28px;
            border-top: 1px solid var(--color-border-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--color-muted-dark);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--color-muted-dark);
        }

        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .legal-links a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }

        .legal-links a:hover {
            color: var(--color-primary);
        }

        .legal-links span {
            opacity: 0.5;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .league-card {
                grid-template-columns: 220px 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                min-height: 60px;
                gap: 12px;
                flex-wrap: wrap;
            }
            .nav-wrapper {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: rgba(15, 20, 30, 0.98);
                flex-direction: column;
                padding: 16px 20px 20px;
                gap: 8px;
                border-bottom: 1px solid var(--color-border-dark);
                box-shadow: var(--shadow-lg);
            }
            .nav-wrapper.open {
                display: flex;
            }
            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                width: 100%;
            }
            .nav-link {
                display: block;
                padding: 10px 14px;
                font-size: 15px;
            }
            .nav-link.active::after {
                display: none;
            }
            .mega-trigger {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 14px;
                font-size: 15px;
            }
            .mega-panel {
                position: static;
                width: 100%;
                grid-template-columns: 1fr;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                box-shadow: none;
            }
            .mega-panel.open {
                display: grid;
            }
            .menu-toggle {
                display: flex;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
            .page-hero {
                padding: 32px 0 28px;
            }
            .page-hero-content h1 {
                font-size: 24px;
            }
            .page-hero-content p {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .league-card {
                grid-template-columns: 1fr;
            }
            .league-card-image {
                height: 160px;
                min-height: auto;
            }
            .league-card-body {
                padding: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-content h2 {
                font-size: 22px;
            }
            .news-item {
                flex-direction: column;
                gap: 6px;
            }
            .news-date {
                min-width: auto;
            }
            .stat-card .stat-number {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero-content h1 {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .grid-3,
            .grid-2,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stat-row {
                grid-template-columns: 1fr;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .card-image {
                height: 160px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        * {
            box-sizing: border-box;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6,
        p {
            margin: 0;
            padding: 0;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 站点头部 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--color-primary);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 10px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }

        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 12px;
            border-radius: 6px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            background: none;
            border: none;
            white-space: nowrap;
        }

        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
            display: inline-block;
        }

        .mega-trigger[aria-expanded="true"] .arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            max-width: calc(100vw - 40px);
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }

        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }

        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }

        .mega-column a:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }

        /* 汉堡按钮 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: background-color var(--transition-base);
            z-index: 1002;
        }

        .hamburger:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }

        .hamburger-line {
            width: 24px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
            transform-origin: center;
        }

        .hamburger.open .hamburger-line:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open .hamburger-line:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open .hamburger-line:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 面包屑 */
        .breadcrumb-wrapper {
            background-color: var(--color-bg-deep-2);
            border-bottom: 1px solid var(--color-border-dark);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted-dark);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .separator {
            color: var(--color-muted-dark);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* 分类标题区 */
        .category-header {
            background-color: var(--color-bg-deep-2);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--color-border-dark);
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(0, 217, 165, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header::after {
            content: '';
            position: absolute;
            bottom: -160px;
            left: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(124, 111, 240, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header-inner {
            position: relative;
            z-index: 1;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: rgba(0, 217, 165, 0.1);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 217, 165, 0.25);
            letter-spacing: 0.5px;
        }

        .category-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            background-color: var(--color-primary);
            border-radius: 50%;
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .category-header .category-subtitle {
            font-size: 16px;
            color: var(--color-muted-dark);
            line-height: 1.7;
            max-width: 680px;
        }

        /* 板块通用 */
        .section {
            padding: var(--section-padding);
        }

        .section-light {
            background-color: var(--color-bg-light);
        }

        .section-dark {
            background-color: var(--color-bg-deep);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-light);
            line-height: 1.4;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--color-muted-light);
            line-height: 1.7;
            max-width: 640px;
        }

        .section-dark .section-header h2 {
            color: var(--color-text-on-dark);
        }

        .section-dark .section-header p {
            color: var(--color-muted-dark);
        }

        /* 攻略卡片网格 */
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guide-card {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.3);
        }

        .guide-card-image {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background-color: #e5e7eb;
        }

        .guide-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .guide-card:hover .guide-card-image img {
            transform: scale(1.04);
        }

        .guide-card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
            padding: 3px 10px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }

        .guide-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-on-light);
            line-height: 1.5;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .guide-card .guide-summary {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            flex: 1;
        }

        /* 方法步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            color: #06261f;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .step-card p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
        }

        /* 数据指标 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--color-bg-card-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            transition: all var(--transition-smooth);
            text-align: center;
        }

        .metric-card:hover {
            border-color: rgba(0, 217, 165, 0.35);
            box-shadow: var(--shadow-teal);
        }

        .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .metric-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-muted-dark);
            letter-spacing: 0.5px;
        }

        /* 资讯快讯 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-muted-light);
            background-color: #f0f2f1;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.3px;
            min-width: 90px;
            text-align: center;
            margin-top: 2px;
        }

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-on-light);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .news-content p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 6px;
        }

        .news-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-link:hover {
            color: var(--color-primary-dark);
            gap: 7px;
        }

        .news-link::after {
            content: '→';
            font-size: 14px;
            transition: transform var(--transition-base);
        }

        .news-link:hover::after {
            transform: translateX(3px);
        }

        /* 专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-purple) 100%);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(0, 217, 165, 0.25);
        }

        .topic-card:hover::before {
            opacity: 1;
        }

        .topic-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-on-light);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: rgba(0, 217, 165, 0.25);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text-on-light);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            gap: 16px;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background-color: rgba(0, 217, 165, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background-color: rgba(0, 217, 165, 0.15);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-deep) 0%, #1a2332 60%, #1e2a3d 100%);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(0, 217, 165, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .cta-inner p {
            font-size: 15px;
            color: var(--color-muted-dark);
            margin-bottom: 24px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--color-accent);
            color: #1a120b;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(255, 138, 61, 0.25);
        }

        .btn-cta:hover {
            background-color: #ff9d5c;
            box-shadow: 0 6px 24px rgba(255, 138, 61, 0.35);
            transform: translateY(-1px);
            color: #1a120b;
        }

        .btn-cta:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-cta:active {
            transform: scale(0.98);
        }

        /* 按钮通用 */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
            font-weight: 600;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            box-shadow: var(--shadow-teal);
            transform: translateY(-1px);
            color: #06261f;
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            font-weight: 500;
        }

        .btn-outline:hover {
            background-color: rgba(0, 217, 165, 0.1);
            box-shadow: var(--shadow-teal);
            color: var(--color-primary);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border-dark);
            padding-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
        }

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--color-muted-dark);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--color-muted-dark);
            transition: all var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom span {
            font-size: 13px;
            color: var(--color-muted-dark);
        }

        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
        }

        .legal-links a {
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }

        .legal-links a:hover {
            color: var(--color-primary);
        }

        .legal-links span {
            color: var(--color-muted-dark);
            font-size: 12px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .guides-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .nav-menu {
                gap: 0;
            }

            .nav-link {
                padding: 10px 9px;
                font-size: 13px;
            }

            .mega-trigger {
                padding: 10px 9px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px 0;
                --section-padding-mobile: 40px 0;
            }

            .nav-wrapper {
                position: static;
            }

            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background-color: rgba(15, 20, 30, 0.98);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                gap: 4px;
                transform: translateY(-110%);
                transition: transform var(--transition-smooth);
                z-index: 999;
                border-bottom: 1px solid var(--color-border-dark);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                max-height: calc(100vh - 68px);
                overflow-y: auto;
            }

            .nav-menu.open {
                transform: translateY(0);
            }

            .nav-link {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background-color: rgba(0, 217, 165, 0.12);
            }

            .hamburger {
                display: flex;
            }

            .mega-trigger {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
                width: 100%;
                justify-content: space-between;
            }

            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                grid-template-columns: 1fr;
                opacity: 0;
                visibility: hidden;
                transform: none;
                box-shadow: none;
                border: none;
                padding: 0 0 0 14px;
                max-height: 0;
                overflow: hidden;
                transition: all var(--transition-smooth);
                background: transparent;
            }

            .mega-panel.open {
                opacity: 1;
                visibility: visible;
                max-height: 400px;
                padding: 0 0 12px 14px;
                transform: none;
            }

            .category-header h1 {
                font-size: 28px;
            }

            .category-header .category-subtitle {
                font-size: 15px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .guides-grid {
                grid-template-columns: 1fr;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
            }

            .news-date {
                min-width: auto;
                align-self: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .cta-inner h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 12px;
                min-height: 60px;
            }

            .logo-text {
                font-size: 16px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 12px;
            }

            .category-header {
                padding: 32px 0 28px;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-badge {
                font-size: 12px;
                padding: 4px 10px;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .metric-value {
                font-size: 26px;
            }

            .guide-card h3 {
                font-size: 15px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }

            .btn-cta {
                padding: 10px 22px;
                font-size: 14px;
            }

            .topic-card {
                padding: 18px 16px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #00d9a5;
            --color-primary-dark: #00b38a;
            --color-accent: #ff8a3d;
            --color-purple: #7c6ff0;
            --color-bg-deep: #0f141e;
            --color-bg-deep-2: #111827;
            --color-bg-light: #f4f7f6;
            --color-bg-card-dark: #1a2332;
            --color-bg-card-light: #ffffff;
            --color-text-on-dark: #f5f7fa;
            --color-text-on-light: #111827;
            --color-muted-dark: #94a3b8;
            --color-muted-light: #5b6474;
            --color-border-dark: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-teal: 0 8px 28px rgba(0, 217, 165, 0.16);
            --font-stack: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
            --transition-base: 0.22s ease;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-on-light);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 站点头部 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 20, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(15, 20, 30, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0ab58a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06261f;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 1px;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-muted-dark);
            border-radius: 6px;
            transition: all var(--transition-base);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: var(--color-primary);
            background-color: rgba(0, 217, 165, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }
        .mega-trigger {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 14px;
            border-radius: 6px;
            cursor: pointer;
            background: none;
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }
        .mega-trigger:hover {
            color: var(--color-text-on-dark);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .mega-trigger .arrow {
            font-size: 10px;
            transition: transform var(--transition-base);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background-color: #161f2d;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-lg);
            z-index: 1001;
        }
        .mega-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-column h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-primary);
            margin-bottom: 10px;
            font-weight: 600;
        }
        .mega-column a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            color: var(--color-muted-dark);
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .mega-column a:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--color-primary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 6px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background-color var(--transition-base);
        }
        .hamburger:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--color-text-on-dark);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted-dark);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-primary);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary-dark);
        }
        .breadcrumb .sep {
            opacity: 0.5;
            font-size: 12px;
        }
        /* 分类标题区 */
        .category-header {
            position: relative;
            background-color: var(--color-bg-deep);
            padding: 56px 0 52px;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border-dark);
        }
        .category-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/2c69b06a80d362e8.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            pointer-events: none;
        }
        .category-header::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,20,30,0.92) 0%, rgba(15,20,30,0.6) 100%);
            pointer-events: none;
        }
        .category-header-content {
            position: relative;
            z-index: 2;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .category-header p {
            font-size: 16px;
            color: var(--color-muted-dark);
            max-width: 720px;
            line-height: 1.8;
        }
        /* 通用板块样式 */
        .section {
            padding: var(--section-padding);
        }
        .section-dark {
            background-color: var(--color-bg-deep);
            color: var(--color-text-on-dark);
        }
        .section-dark .section-title {
            color: var(--color-text-on-dark);
        }
        .section-dark .section-subtitle {
            color: var(--color-muted-dark);
        }
        .section-light {
            background-color: var(--color-bg-light);
            color: var(--color-text-on-light);
        }
        .section-light .section-title {
            color: var(--color-text-on-light);
        }
        .section-light .section-subtitle {
            color: var(--color-muted-light);
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.3px;
            line-height: 1.35;
            margin-bottom: 10px;
        }
        .section-subtitle {
            font-size: 15px;
            line-height: 1.75;
            max-width: 680px;
        }
        /* 快讯卡片网格 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .news-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #e5e7eb;
            position: relative;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.04);
        }
        .news-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-tag {
            display: inline-flex;
            align-self: flex-start;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background-color: rgba(0, 217, 165, 0.12);
            color: var(--color-primary-dark);
            margin-bottom: 10px;
        }
        .news-card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--color-text-on-light);
        }
        .news-card-excerpt {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-muted-light);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .news-card-meta time {
            font-weight: 500;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-base);
            border: none;
            line-height: 1.5;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #06261f;
        }
        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            color: #fff;
            box-shadow: var(--shadow-teal);
        }
        .btn-primary:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-outline:hover {
            background-color: rgba(0, 217, 165, 0.08);
            color: var(--color-primary-dark);
        }
        .btn-outline:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-accent {
            background-color: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background-color: #f57420;
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 138, 61, 0.25);
        }
        .btn-accent:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-accent:active {
            transform: scale(0.98);
        }
        .btn-sm {
            padding: 6px 14px;
            font-size: 13px;
            border-radius: 6px;
        }
        /* 信息卡片 */
        .info-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .info-card {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: all var(--transition-base);
        }
        .info-card:hover {
            border-color: rgba(0, 217, 165, 0.35);
            background-color: rgba(255, 255, 255, 0.06);
        }
        .info-card .icon-wrap {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background-color: rgba(0, 217, 165, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            color: var(--color-primary);
            font-size: 18px;
            font-weight: 700;
        }
        .info-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .info-card p {
            font-size: 13px;
            color: var(--color-muted-dark);
            line-height: 1.65;
        }
        /* 数据指标 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .metric-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .metric-label {
            font-size: 13px;
            color: var(--color-muted-light);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }
        /* 快讯列表 */
        .brief-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .brief-item {
            padding: 18px 20px;
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .brief-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 217, 165, 0.25);
        }
        .brief-item-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }
        .brief-date {
            font-size: 12px;
            color: var(--color-accent);
            font-weight: 500;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .brief-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-light);
            flex: 1;
            line-height: 1.5;
        }
        .brief-excerpt {
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .brief-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary-dark);
            cursor: pointer;
            transition: color var(--transition-base);
        }
        .brief-link:hover {
            color: var(--color-primary);
        }
        /* 专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4/5;
            background-color: var(--color-bg-deep-2);
            border: 1px solid var(--color-border-dark);
            transition: all var(--transition-base);
            display: flex;
            align-items: flex-end;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(0, 217, 165, 0.35);
        }
        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
            transition: all var(--transition-smooth);
        }
        .topic-card:hover img {
            opacity: 0.65;
            transform: scale(1.03);
        }
        .topic-card-overlay {
            position: relative;
            z-index: 2;
            padding: 18px 16px;
            background: linear-gradient(180deg, rgba(15,20,30,0) 0%, rgba(15,20,30,0.9) 60%);
            width: 100%;
        }
        .topic-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }
        .topic-card p {
            font-size: 12px;
            color: var(--color-muted-dark);
            line-height: 1.5;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: var(--color-bg-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text-on-light);
            transition: all var(--transition-base);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--color-muted-light);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        /* CTA区块 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-deep-2) 0%, #1a2a1f 50%, var(--color-bg-deep) 100%);
            border-top: 1px solid var(--color-border-dark);
        }
        .cta-card {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .cta-card p {
            font-size: 15px;
            color: var(--color-muted-dark);
            line-height: 1.75;
            margin-bottom: 24px;
        }
        /* 页脚 */
        .site-footer {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border-dark);
            padding: 56px 0 24px;
            color: var(--color-muted-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-muted-dark);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-on-dark);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: var(--color-muted-dark);
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 13px;
        }
        .legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .legal-links a {
            color: var(--color-muted-dark);
            font-size: 13px;
        }
        .legal-links a:hover {
            color: var(--color-primary);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                min-height: 60px;
            }
            .hamburger {
                display: flex;
            }
            .nav-wrapper {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #161f2d;
                border-bottom: 1px solid var(--color-border-dark);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 16px 20px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                display: none;
                max-height: calc(100vh - 100px);
                overflow-y: auto;
            }
            .nav-wrapper.mobile-open {
                display: flex;
            }
            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
            }
            .nav-link {
                padding: 12px 14px;
                font-size: 15px;
            }
            .mega-panel {
                position: static;
                width: 100%;
                grid-template-columns: 1fr;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                background-color: rgba(255, 255, 255, 0.04);
                margin-top: 10px;
                display: none;
                padding: 12px;
            }
            .mega-panel.open {
                display: grid;
            }
            .mega-trigger {
                width: 100%;
                justify-content: space-between;
                padding: 12px 14px;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 24px;
            }
            .category-header {
                padding: 36px 0 32px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .category-header p {
                font-size: 14px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .info-card-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .topic-card {
                aspect-ratio: 3/4;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .cta-card h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .topic-card {
                aspect-ratio: 16/10;
            }
            .news-card-title {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .logo-text {
                font-size: 16px;
            }
            .brief-title {
                font-size: 14px;
            }
        }