/* roulang page: index */
:root {
      --primary: #0F1923;
      --secondary: #1E293B;
      --accent: #00E676;
      --accent-glow: rgba(0, 230, 118, 0.35);
      --danger-live: #FF3366;
      --surface-light: #F8FAFC;
      --border-color: #E2E8F0;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --card-radius: 14px;
      --btn-radius: 30px;
      --shadow-base: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 12px 28px -4px rgba(0, 230, 118, 0.22);
      --transition-smooth: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: #334155;
      background-color: #FFFFFF;
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 顶栏与卡片化导航系统 */
    .top-micro-bar {
      background: var(--primary);
      color: #94A3B8;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-micro-bar .badge-live {
      background: var(--danger-live);
      color: #fff;
      font-size: 11px;
      padding: 2px 7px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .main-nav-container {
      position: sticky;
      top: 14px;
      z-index: 1020;
      padding: 0 16px;
    }
    .card-nav-panel {
      max-width: 1280px;
      margin: 0 auto;
      background: #FFFFFF;
      border-radius: 18px;
      border: 1px solid var(--border-color);
      box-shadow: 0 8px 30px rgba(15, 25, 35, 0.1);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      backdrop-filter: blur(10px);
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo i {
      color: #00C853;
      font-size: 24px;
    }
    .nav-pill-group {
      display: flex;
      gap: 6px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-pill-btn {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 600;
      font-size: 14px;
      padding: 8px 16px;
      border-radius: var(--btn-radius);
      transition: var(--transition-smooth);
      display: inline-block;
    }
    .nav-pill-btn:hover, .nav-pill-btn.active {
      background-color: var(--surface-light);
      color: #00B348;
    }
    .btn-nav-download {
      background: linear-gradient(135deg, #00E676 0%, #00C853 100%);
      color: #0B2512;
      font-weight: 700;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--btn-radius);
      text-decoration: none;
      transition: var(--transition-smooth);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(0, 230, 118, 0.35);
      border: none;
      min-height: 44px;
    }
    .btn-nav-download:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 230, 118, 0.5);
      color: #0B2512;
    }

    /* 模块通用标准 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-bg-light {
      background-color: var(--surface-light);
    }
    .section-bg-dark {
      background-color: var(--primary);
      color: #F8FAFC;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      background: rgba(0, 230, 118, 0.12);
      color: #00963F;
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-bg-dark .section-tag {
      background: rgba(0, 230, 118, 0.15);
      color: var(--accent);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.28;
    }
    .section-bg-dark .section-title {
      color: #FFFFFF;
    }
    .section-lead {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 780px;
      margin-bottom: 40px;
    }
    .section-bg-dark .section-lead {
      color: #94A3B8;
    }

    /* 卡片体系 */
    .app-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      box-shadow: var(--shadow-base);
      padding: 28px;
      transition: var(--transition-smooth);
      height: 100%;
      position: relative;
    }
    .app-card:hover {
      transform: translateY(-4px);
      border-color: #A7F3D0;
      box-shadow: var(--shadow-hover);
    }

    /* 板块一：Hero */
    .hero-banner {
      background: linear-gradient(180deg, #0F1923 0%, #162433 100%);
      color: #FFFFFF;
      padding: 70px 0 60px 0;
      position: relative;
      overflow: hidden;
    }
    .hero-banner::after {
      content: "";
      position: absolute;
      top: -20%;
      right: -10%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 230, 118, 0.18) 0%, rgba(15, 25, 35, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-h1 span {
      color: var(--accent);
    }
    .hero-intro {
      font-size: 17px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-action-box {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 30px;
    }
    .btn-action-primary {
      background: linear-gradient(135deg, #00E676 0%, #00C853 100%);
      color: #062411;
      font-weight: 700;
      font-size: 16px;
      padding: 13px 32px;
      border-radius: var(--btn-radius);
      text-decoration: none;
      transition: var(--transition-smooth);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-height: 48px;
    }
    .btn-action-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px var(--accent-glow);
      color: #062411;
    }
    .btn-action-secondary {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
      font-weight: 600;
      font-size: 16px;
      padding: 13px 28px;
      border-radius: var(--btn-radius);
      text-decoration: none;
      transition: var(--transition-smooth);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-height: 48px;
    }
    .btn-action-secondary:hover {
      background: rgba(255, 255, 255, 0.16);
      color: #FFFFFF;
    }
    .platform-badges {
      display: flex;
      gap: 20px;
      align-items: center;
      color: #94A3B8;
      font-size: 14px;
    }
    .platform-badges i {
      font-size: 18px;
      color: #CBD5E1;
      margin-right: 6px;
    }
    .hero-mock-img {
      border-radius: 18px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
      border: 1px solid rgba(255, 255, 255, 0.12);
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* 板块二：转播核心矩阵 */
    .league-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 24px;
      text-align: center;
      transition: var(--transition-smooth);
      height: 100%;
    }
    .league-card:hover {
      border-color: #00E676;
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .league-icon-box {
      width: 60px;
      height: 60px;
      background: #F1F5F9;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 26px;
      color: var(--primary);
    }
    .signal-pill {
      display: inline-block;
      font-size: 12px;
      padding: 2px 10px;
      background: #ECFDF5;
      color: #059669;
      border-radius: 12px;
      font-weight: 600;
      margin-top: 10px;
    }

    /* 板块三：产品全景 */
    .tech-metric-box {
      border-left: 3px solid #00E676;
      padding-left: 16px;
      background: #F8FAFC;
      border-radius: 0 8px 8px 0;
      padding: 12px 16px;
      margin-top: 20px;
    }

    /* 板块四：六大核心网格 */
    .adv-icon-wrap {
      width: 48px;
      height: 48px;
      background: rgba(0, 230, 118, 0.1);
      color: #00963F;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
    }

    /* 板块五：热门终端功能推荐 */
    .feature-snap-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      height: 100%;
      box-shadow: var(--shadow-base);
    }
    .feature-snap-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .feature-snap-body {
      padding: 24px;
    }

    /* 板块六：底层架构深色区 */
    .arch-code-panel {
      background: #14202B;
      border: 1px solid #233446;
      border-radius: 12px;
      padding: 24px;
      font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
      font-size: 13px;
      color: #A5B4FC;
    }
    .arch-code-panel pre {
      margin: 0;
      white-space: pre-wrap;
    }

    /* 板块七：指标统计带 */
    .metric-number {
      font-size: 40px;
      font-weight: 800;
      color: #00C853;
      line-height: 1.1;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto;
    }
    .metric-label {
      font-size: 14px;
      color: #475569;
      font-weight: 600;
      margin-top: 6px;
    }

    /* 板块八：用户实测故事 */
    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 28px;
      display: flex;
      gap: 20px;
      height: 100%;
    }
    .story-avatar {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      object-fit: cover;
      flex-shrink: 0;
      border: 2px solid #00E676;
    }

    /* 板块九：多端口碑评分 */
    .review-bubble {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      height: 100%;
      position: relative;
    }
    .star-bar {
      color: #F59E0B;
      margin-bottom: 12px;
      font-size: 14px;
    }

    /* 板块十：赛事快讯与前瞻摘要 */
    .news-strip-item {
      padding: 18px;
      border-radius: 12px;
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      transition: var(--transition-smooth);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      margin-bottom: 12px;
    }
    .news-strip-item:hover {
      background: #FFFFFF;
      border-color: #00E676;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
    }

    /* 板块十一：FAQ 手风琴 */
    .custom-accordion .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: 12px !important;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .custom-accordion .accordion-button {
      font-weight: 700;
      font-size: 16px;
      color: var(--text-main);
      background-color: #FFFFFF;
      padding: 18px 24px;
      box-shadow: none;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      color: #00963F;
      background-color: #F0FDF4;
    }
    .custom-accordion .accordion-button::after {
      filter: saturate(0);
    }
    .custom-accordion .accordion-button:not(.collapsed)::after {
      filter: none;
    }
    .custom-accordion .accordion-body {
      padding: 18px 24px;
      color: #475569;
      font-size: 15px;
      line-height: 1.7;
    }

    /* 板块十二：下载 CTA */
    .download-cta-box {
      background: linear-gradient(135deg, #0F1923 0%, #1A2836 100%);
      border-radius: 24px;
      padding: 60px 40px;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .download-cta-box::before {
      content: "";
      position: absolute;
      bottom: -40px;
      right: -40px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(0, 230, 118, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
      pointer-events: none;
    }
    .qr-placeholder-card {
      width: 140px;
      height: 140px;
      background: #FFFFFF;
      border-radius: 12px;
      padding: 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      text-align: center;
      font-size: 11px;
      font-weight: 600;
    }
    .qr-placeholder-card i {
      font-size: 68px;
      color: #0F172A;
      margin-bottom: 4px;
    }

    /* 页脚系统 */
    .site-footer {
      background: #0B1118;
      color: #94A3B8;
      padding-top: 60px;
      padding-bottom: 30px;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }
    .footer-title {
      font-size: 16px;
      color: #F8FAFC;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .copyright-bar {
      margin-top: 50px;
      padding-top: 25px;
      border-top: 1px solid #1E293B;
      font-size: 13px;
      color: #64748B;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 15px;
    }

    /* 移动端响应优化 */
    @media (max-width: 991.98px) {
      .hero-h1 {
        font-size: 32px;
      }
      .nav-pill-group {
        display: none;
      }
      .section-wrap {
        padding: 55px 0;
      }
      .story-card {
        flex-direction: column;
      }
    }
    @media (max-width: 575.98px) {
      .card-nav-panel {
        padding: 10px 14px;
      }
      .hero-action-box {
        flex-direction: column;
        align-items: stretch;
      }
      .btn-action-primary, .btn-action-secondary {
        justify-content: center;
      }
      .download-cta-box {
        padding: 35px 20px;
      }
    }