/* roulang page: index */
:root {
      --bg-dark: #0A0E12;
      --bg-card: #10161E;
      --bg-card-hover: #16202A;
      --bg-alt: #0D131A;
      --primary: #00E575;
      --primary-hover: #00C864;
      --accent-cyan: #00D1B2;
      --text-main: #F1F5F9;
      --text-sub: #94A3B8;
      --text-muted: #64748B;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(0, 229, 117, 0.3);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-main: 0 10px 30px rgba(0, 0, 0, 0.45);
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    /* 顶部导航与 Mega Menu */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 14, 18, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: #fff;
    }
    .brand-logo .logo-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #0A0E12;
      border-radius: var(--radius-sm);
      font-weight: 900;
      font-size: 0.95rem;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
      position: relative;
    }
    .nav-item {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
    }
    .nav-item:hover, .nav-item.active {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
    }
    .has-mega-menu {
      position: relative;
    }
    .mega-menu {
      position: absolute;
      top: 100%;
      left: -150px;
      width: 760px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-main);
      padding: 24px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: var(--transition-smooth);
      z-index: 100;
    }
    .has-mega-menu:hover .mega-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .mega-column-title {
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 12px;
      letter-spacing: 0.05em;
    }
    .mega-match-card {
      background: rgba(255, 255, 255, 0.03);
      padding: 12px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-subtle);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition-smooth);
      border: 1px solid transparent;
    }
    .btn-primary {
      background: var(--primary);
      color: #0A0E12;
      box-shadow: 0 4px 14px rgba(0, 229, 117, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(0, 229, 117, 0.4);
      transform: translateY(-2px);
      color: #0A0E12;
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--border-subtle);
      color: var(--text-main);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.2);
      color: #fff;
    }

    /* 状态徽章 */
    .badge-live {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(239, 68, 68, 0.15);
      color: #EF4444;
      border: 1px solid rgba(239, 68, 68, 0.3);
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.03em;
    }
    .badge-live .pulse-dot {
      width: 6px;
      height: 6px;
      background: #EF4444;
      border-radius: 50%;
      box-shadow: 0 0 8px #EF4444;
      animation: pulse 1.6s infinite;
    }
    .badge-tag {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-sub);
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 0.78rem;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.4); opacity: 0.4; }
    }

    /* 板块通用规范 */
    .section-spacing {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-spacing-alt {
      background: var(--bg-alt);
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: #fff;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 0.98rem;
      color: var(--text-sub);
      max-width: 780px;
    }

    /* 板块一：Hero 首屏 5:7 错位视觉 */
    .hero-section {
      padding: 70px 0 80px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 117, 0.08) 0%, transparent 60%);
      border-bottom: 1px solid var(--border-subtle);
    }
    .hero-h1 {
      font-size: 2.35rem;
      line-height: 1.25;
      font-weight: 800;
      color: #fff;
      margin-bottom: 18px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #FFFFFF, var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 1.02rem;
      color: var(--text-sub);
      margin-bottom: 28px;
      line-height: 1.7;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-kpi-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
    }
    .kpi-num {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary);
    }
    .kpi-label {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .hero-stage-card {
      background: var(--bg-card);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-main);
      transform: translateY(10px);
    }
    .match-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .teams-versus {
      display: flex;
      justify-content: space-around;
      align-items: center;
      text-align: center;
      padding: 18px 0;
    }
    .team-item {
      flex: 1;
    }
    .team-avatar {
      width: 58px;
      height: 58px;
      margin: 0 auto 10px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
    }
    .team-name {
      font-size: 1.05rem;
      font-weight: 700;
    }
    .team-rank {
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .versus-score {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      padding: 0 16px;
    }

    /* 板块二：赛区多卡片矩阵 */
    .zone-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: var(--transition-smooth);
      height: 100%;
    }
    .zone-card:hover {
      border-color: var(--border-highlight);
      transform: translateY(-4px);
    }
    .zone-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .zone-teams {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
    }
    .zone-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 12px;
      border-top: 1px solid var(--border-subtle);
    }

    /* 板块三：实时传输技术指标 */
    .metric-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .metric-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
      font-family: monospace, sans-serif;
    }

    /* 板块四：极速上手流程 */
    .step-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
    }
    .step-num {
      font-size: 2rem;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.08);
      position: absolute;
      top: 12px;
      right: 16px;
    }

    /* 板块五：精彩战役回放 */
    .replay-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .replay-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }
    .replay-cover {
      height: 160px;
      background: linear-gradient(135deg, #1A2634, #0A0E12);
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }
    .replay-body {
      padding: 16px;
    }

    /* 板块六：战术快讯与资讯列表 */
    .news-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .news-item:last-child {
      border-bottom: none;
    }

    /* 板块七：12 支俱乐部名录 */
    .club-pill {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition-smooth);
    }
    .club-pill:hover {
      border-color: var(--primary);
      background: var(--bg-card-hover);
    }

    /* 板块八：地域专线 CDN */
    .cdn-node {
      background: var(--bg-card);
      border-left: 3px solid var(--primary);
      padding: 16px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }

    /* 板块九：多端适配矩阵 */
    .device-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    /* 板块十：常见疑问 FAQ */
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 16px;
    }
    .faq-q {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .faq-a {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 板块十一：保障承诺条 */
    .guarantee-bar {
      background: linear-gradient(90deg, #101A24, #0A0E12);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
    }

    /* 板块十二：开赛预约 CTA */
    .cta-focus-box {
      background: radial-gradient(circle at center, #162432 0%, #0A0E12 100%);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 48px 32px;
      text-align: center;
    }

    /* 页脚 */
    .site-footer {
      background: #06090C;
      padding: 56px 0 28px;
      border-top: 1px solid var(--border-subtle);
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .footer-col-title {
      color: #fff;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links li {
      list-style: none;
      margin-bottom: 10px;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 20px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 移动端与响应式断点 */
    @media screen and (max-width: 1024px) {
      .mega-menu { display: none !important; }
      .hero-h1 { font-size: 1.95rem; }
    }
    @media screen and (max-width: 640px) {
      .header-inner { height: 60px; }
      .hero-section { padding: 40px 0; }
      .hero-h1 { font-size: 1.6rem; }
      .hero-actions { flex-direction: column; }
      .hero-kpi-bar { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }