/* roulang page: index */
:root {
      --primary: #0A5C36;
      --primary-dark: #064024;
      --secondary: #FF6B00;
      --secondary-hover: #e05e00;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --dark-slate: #0F1E17;
      --text-main: #1E293B;
      --text-muted: #475569;
      --text-sub: #94A3B8;
      --border-light: rgba(10, 92, 54, 0.1);
      --radius-md: 10px;
      --shadow-sm: 0 4px 20px -2px rgba(10, 92, 54, 0.05);
      --shadow-hover: 0 10px 25px -4px rgba(10, 92, 54, 0.12);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    a { color: inherit; text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }
    
    .top-bar-info {
      background-color: var(--primary-dark);
      color: #cbd5e1;
      font-size: 0.8125rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.9); }
    }

    .main-header {
      background: linear-gradient(90deg, #0A5C36 0%, #064024 100%);
      position: sticky;
      top: 0;
      z-index: 999;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .site-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1.4rem;
      letter-spacing: -0.02em;
    }
    .site-brand i { color: var(--secondary); font-size: 1.6rem; }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-menu a {
      color: #FFFFFF;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.12);
    }
    .btn-cta-score {
      background-color: var(--secondary);
      color: #FFFFFF !important;
      padding: 9px 20px !important;
      border-radius: 6px;
      font-weight: 600 !important;
      box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
      transition: var(--transition);
    }
    .btn-cta-score:hover {
      background-color: var(--secondary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(255, 107, 0, 0.4);
    }

    .section-wrap {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .section-wrap-sm {
      padding: 50px 0;
    }
    .section-bg-white { background-color: var(--bg-white); }
    .section-bg-light { background-color: var(--bg-light); }
    .section-bg-dark { background-color: var(--dark-slate); color: #F8FAFC; }

    .section-head {
      margin-bottom: 48px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(10, 92, 54, 0.1);
      color: var(--primary);
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: 20px;
      margin-bottom: 12px;
    }
    .section-bg-dark .section-badge {
      background: rgba(255, 107, 0, 0.15);
      color: var(--secondary);
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      line-height: 1.35;
      margin: 0 0 16px 0;
      letter-spacing: -0.02em;
    }
    .section-bg-dark .section-title { color: #FFFFFF; }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0;
    }
    .section-bg-dark .section-desc { color: #94A3B8; }

    /* 板块 1: 无大图首屏，图标矩阵 + 状态条 + 短标题 */
    .hero-matrix {
      background: radial-gradient(circle at 100% 0%, rgba(10, 92, 54, 0.15) 0%, rgba(248, 250, 252, 1) 70%);
      padding: 60px 0 75px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .hero-status-strip {
      display: inline-flex;
      align-items: center;
      gap: 14px;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 6px 16px;
      border-radius: 30px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      font-size: 0.85rem;
      font-weight: 500;
    }
    .hero-status-tag {
      background: #E8F5E9;
      color: #2E7D32;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }
    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 800px;
    }
    .hero-grid-matrix {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 36px;
    }
    .matrix-card {
      background: #FFFFFF;
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .matrix-card i {
      font-size: 1.8rem;
      color: var(--primary);
    }
    .matrix-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin: 0;
    }
    .matrix-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    /* 板块 2: 内容日历 */
    .calendar-strip {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 12px;
      margin-bottom: 30px;
    }
    .calendar-day-tab {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 12px 8px;
      text-align: center;
      cursor: pointer;
      transition: var(--transition);
    }
    .calendar-day-tab.active, .calendar-day-tab:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }
    .calendar-day-tab .cal-week { font-size: 0.8rem; opacity: 0.8; }
    .calendar-day-tab .cal-date { font-size: 1.1rem; font-weight: 700; }
    .calendar-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cal-item-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: #FFFFFF;
      padding: 16px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }
    .cal-meta { display: flex; align-items: center; gap: 20px; }
    .cal-badge {
      background: #EFF6FF;
      color: #1D4ED8;
      padding: 4px 10px;
      font-size: 0.8rem;
      font-weight: 600;
      border-radius: 4px;
    }
    .cal-time { font-weight: 600; color: var(--text-main); font-size: 0.95rem; }
    .cal-teams { font-weight: 700; font-size: 1.05rem; }
    .cal-score-alert {
      color: var(--secondary);
      font-weight: 700;
      font-size: 1.1rem;
      background: rgba(255, 107, 0, 0.1);
      padding: 4px 12px;
      border-radius: 6px;
    }

    /* 板块 3: 核心卖点三连 */
    .feature-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      padding: 36px 28px;
      box-shadow: var(--shadow-sm);
      height: 100%;
      transition: var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon-box {
      width: 58px;
      height: 58px;
      border-radius: 12px;
      background: rgba(10, 92, 54, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.6rem;
      margin-bottom: 22px;
    }
    .feature-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
    .feature-card p { font-size: 0.925rem; color: var(--text-muted); margin: 0; line-height: 1.7; }

    /* 板块 4: 热门专题 */
    .topic-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      height: 100%;
      transition: var(--transition);
    }
    .topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .topic-img-wrap { height: 180px; overflow: hidden; position: relative; }
    .topic-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
    .topic-card:hover .topic-img-wrap img { transform: scale(1.05); }
    .topic-body { padding: 24px; }
    .topic-body h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
    .topic-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 18px; }
    .topic-stat { display: flex; justify-content: space-between; font-size: 0.8125rem; color: var(--text-sub); border-top: 1px solid #f1f5f9; padding-top: 14px; }

    /* 板块 5: 核心优势矩阵六卡片 */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .adv-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: var(--shadow-hover); }
    .adv-card i { font-size: 1.5rem; color: var(--primary); margin-bottom: 14px; display: inline-block; }
    .adv-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
    .adv-card p { font-size: 0.875rem; color: var(--text-muted); margin: 0; line-height: 1.65; }

    /* 板块 6: 场景演示与德比战动态 */
    .match-demo-container {
      background: #FFFFFF;
      border-radius: 12px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      padding: 32px;
    }
    .scoreboard-strip {
      background: #0F1E17;
      color: #FFFFFF;
      border-radius: 8px;
      padding: 24px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
    }
    .score-team { display: flex; align-items: center; gap: 16px; font-size: 1.25rem; font-weight: 700; }
    .score-num { font-size: 2.2rem; font-weight: 800; color: var(--secondary); letter-spacing: 2px; }
    .timeline-events {
      display: flex;
      flex-direction: column;
      gap: 16px;
      border-left: 2px solid #E2E8F0;
      padding-left: 24px;
      margin-left: 12px;
    }
    .timeline-item {
      position: relative;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -29px;
      top: 6px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--primary);
    }
    .timeline-time { font-weight: 700; color: var(--primary); margin-right: 8px; }

    /* 板块 7: 深色高并发技术底座 */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 40px;
    }
    .arch-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 28px;
      border-radius: var(--radius-md);
    }
    .arch-card h3 { color: #FFFFFF; font-size: 1.2rem; margin-bottom: 12px; font-weight: 700; }
    .arch-card p { color: #94A3B8; font-size: 0.9rem; line-height: 1.7; margin: 0; }

    /* 板块 8: 关键运营数据统计 */
    .stat-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-number {
      font-size: 3rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      font-feature-settings: "tnum";
    }
    .stat-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 板块 9: 观点解读与专家视角 */
    .insight-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      height: 100%;
    }
    .insight-quote {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-style: italic;
      margin-bottom: 20px;
      line-height: 1.75;
    }
    .insight-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .insight-avatar {
      width: 44px;
      height: 44px;
      background: #E2E8F0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }
    .insight-meta h4 { font-size: 0.95rem; font-weight: 700; margin: 0; }
    .insight-meta span { font-size: 0.8rem; color: var(--text-sub); }

    /* 板块 10: 行业资讯与分析摘要 */
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }
    .news-tag {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 8px;
    }
    .news-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
    .news-summary { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 16px; }

    /* 板块 11: 平台安全与服务规范 */
    .audit-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .audit-item {
      background: #FFFFFF;
      padding: 20px 24px;
      border-radius: 8px;
      border: 1px solid var(--border-light);
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .audit-item i { color: #10B981; font-size: 1.3rem; margin-top: 3px; }
    .audit-item h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
    .audit-item p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

    /* 板块 12: 技术常见问题手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .accordion-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .accordion-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-title:hover { background: #FAFAFA; }
    .accordion-content {
      padding: 0 24px 20px 24px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.75;
      display: none;
    }
    .accordion-item.is-active .accordion-content { display: block; }
    .accordion-item.is-active .accordion-title i { transform: rotate(180deg); }

    /* 板块 13: 转化保障与最终收口 */
    .cta-banner {
      background: linear-gradient(135deg, #0A5C36 0%, #064024 100%);
      border-radius: 16px;
      padding: 48px;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      box-shadow: 0 12px 32px rgba(10, 92, 54, 0.2);
    }
    .cta-banner h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
    .cta-banner p { font-size: 1.05rem; color: #E2E8F0; margin: 0; max-width: 600px; }

    /* 页脚 */
    .site-footer {
      background-color: #07150E;
      color: #94A3B8;
      padding: 70px 0 30px 0;
      font-size: 0.875rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-col ul { list-style: none; padding: 0; margin: 0; }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul a:hover { color: #FFFFFF; }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.8125rem;
      text-align: center;
    }

    /* 移动端浮动转化条 */
    .mobile-float-cta {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      height: 58px;
      background: #FFFFFF;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
      z-index: 1000;
      padding: 6px 16px;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }
    .mobile-float-btn {
      flex: 1;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--secondary);
      color: #FFFFFF;
      font-weight: 700;
      border-radius: 6px;
      font-size: 0.95rem;
    }
    .mobile-sub-btn {
      flex: 1;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
      border-radius: 6px;
      font-size: 0.9rem;
    }

    @media screen and (max-width: 1024px) {
      .hero-grid-matrix { grid-template-columns: repeat(2, 1fr); }
      .advantage-grid { grid-template-columns: repeat(2, 1fr); }
      .stat-bar-grid { grid-template-columns: repeat(2, 1fr); }
      .arch-grid { grid-template-columns: repeat(1, 1fr); }
    }
    @media screen and (max-width: 768px) {
      .top-bar-info { display: none; }
      .nav-menu { display: none; }
      .hero-h1 { font-size: 2rem; }
      .calendar-strip { grid-template-columns: repeat(4, 1fr); }
      .advantage-grid { grid-template-columns: 1fr; }
      .audit-grid { grid-template-columns: 1fr; }
      .cta-banner { flex-direction: column; text-align: center; padding: 32px 20px; }
      .mobile-float-cta { display: flex; }
      body { padding-bottom: 60px; }
    }