/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --bg-surface: #121721;
      --bg-card: rgba(18, 23, 33, 0.85);
      --neon-green: #00FF87;
      --neon-cyan: #60EFFF;
      --neon-orange: #FF5E3A;
      --gold-vip: #D4AF37;
      --gold-light: #F3E5AB;
      --text-white: #FFFFFF;
      --text-muted: #A0AEC0;
      --text-dim: #64748B;
      --border-neon: rgba(0, 255, 135, 0.18);
      --border-dark: rgba(255, 255, 255, 0.08);
      --transition-base: all 0.28s ease;
    }

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

    body {
      background-color: var(--bg-dark);
      color: var(--text-white);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      letter-spacing: -0.015em;
      overflow-x: hidden;
      padding-top: 110px;
    }

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

    /* 顶部顶栏 */
    .top-bar {
      background: #06080C;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.82rem;
      color: var(--text-muted);
      height: 38px;
    }
    .top-bar-badge {
      background: rgba(0, 255, 135, 0.12);
      color: var(--neon-green);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 主导航 */
    .site-nav {
      background: rgba(11, 14, 20, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-neon);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
      top: 38px;
      z-index: 1030;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: -0.02em;
    }
    .brand-logo i {
      color: var(--neon-green);
      font-size: 1.5rem;
      filter: drop-shadow(0 0 8px rgba(0, 255, 135, 0.5));
    }
    .navbar-nav .nav-link {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 0.6rem 1rem;
      position: relative;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--neon-green);
    }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 1rem;
      right: 1rem;
      height: 2px;
      background: var(--neon-green);
      box-shadow: 0 0 8px var(--neon-green);
    }

    /* 按钮规范 */
    .btn-neon-primary {
      background: linear-gradient(135deg, var(--neon-green) 0%, var(--neon-cyan) 100%);
      color: #06080C;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      padding: 0.62rem 1.45rem;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-neon-primary:hover {
      box-shadow: 0 0 22px rgba(0, 255, 135, 0.45);
      transform: translateY(-2px);
      color: #06080C;
    }
    .btn-gold {
      background: linear-gradient(135deg, #FFE259 0%, #FFA751 100%);
      color: #121721;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      padding: 0.62rem 1.45rem;
      transition: var(--transition-base);
    }
    .btn-gold:hover {
      box-shadow: 0 0 20px rgba(255, 180, 50, 0.5);
      transform: translateY(-2px);
      color: #000;
    }
    .btn-outline-neon {
      border: 1px solid var(--neon-green);
      color: var(--neon-green);
      background: transparent;
      border-radius: 8px;
      padding: 0.6rem 1.35rem;
      font-weight: 600;
      transition: var(--transition-base);
    }
    .btn-outline-neon:hover {
      background: rgba(0, 255, 135, 0.12);
      color: #FFFFFF;
      border-color: var(--neon-cyan);
      box-shadow: 0 0 16px rgba(0, 255, 135, 0.3);
    }

    /* 板块通用 */
    .section-block {
      padding: 85px 0;
      position: relative;
    }
    .section-block:nth-of-type(even) {
      background-color: var(--bg-surface);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-subtitle {
      color: var(--neon-green);
      font-size: 0.88rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      color: var(--text-muted);
      max-width: 780px;
      font-size: 1rem;
      margin-bottom: 0;
    }

    /* 卡片通用 */
    .app-card {
      background: var(--bg-card);
      border: 1px solid var(--border-neon);
      border-radius: 14px;
      padding: 28px;
      transition: var(--transition-base);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .app-card:hover {
      border-color: var(--neon-cyan);
      box-shadow: 0 8px 30px rgba(0, 255, 135, 0.14);
      transform: translateY(-4px);
    }

    /* 首屏 Hero (会员俱乐部黑金感) */
    #hero {
      position: relative;
      background-color: #06090E;
      background-image: linear-gradient(rgba(11, 14, 20, 0.85), rgba(11, 14, 20, 0.95)), url('/assets/images/98db5e6a53a7b425.jpg');
      background-size: cover;
      background-position: center;
      padding: 70px 0 90px;
      border-bottom: 1px solid rgba(212, 175, 55, 0.25);
    }
    .club-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(212, 175, 55, 0.12);
      border: 1px solid rgba(212, 175, 55, 0.4);
      color: var(--gold-light);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 22px;
    }
    .hero-h1 {
      font-size: 2.9rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #FFFFFF;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #FFFFFF 0%, var(--gold-light) 50%, var(--gold-vip) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 32px;
      max-width: 680px;
    }
    .club-pass-card {
      background: linear-gradient(145deg, #1A1F2C 0%, #0F131C 100%);
      border: 1px solid rgba(212, 175, 55, 0.35);
      border-radius: 18px;
      padding: 30px;
      box-shadow: 0 16px 45px rgba(0, 0, 0, 0.6);
      position: relative;
    }
    .vip-tag {
      background: linear-gradient(90deg, #D4AF37, #AA771C);
      color: #000;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 4px;
      text-transform: uppercase;
    }

    /* KPI看板 */
    #kpi-board {
      background: #090C12;
      border-bottom: 1px solid var(--border-dark);
      padding: 50px 0;
    }
    .kpi-item {
      padding: 15px 20px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
    }
    .kpi-item:last-child {
      border-right: none;
    }
    .kpi-num {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--neon-green);
      font-family: monospace;
      line-height: 1.1;
      text-shadow: 0 0 16px rgba(0, 255, 135, 0.3);
    }
    .kpi-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 6px;
    }

    /* 热门赛事卡片 */
    .event-card {
      border-radius: 14px;
      background: #141A25;
      border: 1px solid rgba(255, 255, 255, 0.08);
      overflow: hidden;
      transition: var(--transition-base);
    }
    .event-card:hover {
      border-color: var(--neon-green);
      transform: translateY(-5px);
      box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
    }
    .event-poster {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .event-body {
      padding: 22px;
    }
    .event-tag {
      background: rgba(96, 239, 255, 0.12);
      color: var(--neon-cyan);
      font-size: 0.78rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .event-price {
      color: var(--neon-orange);
      font-size: 1.35rem;
      font-weight: 800;
    }

    /* 对比表格 */
    .compare-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-neon);
      background: var(--bg-surface);
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .compare-table th {
      background: #18202F;
      font-weight: 700;
      color: var(--text-white);
    }
    .compare-app-col {
      background: rgba(0, 255, 135, 0.05);
      color: var(--neon-green);
      font-weight: 700;
    }

    /* 里程碑时间线 */
    .timeline-wrap {
      position: relative;
      padding-left: 30px;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      left: 8px;
      top: 10px;
      bottom: 10px;
      width: 2px;
      background: linear-gradient(180deg, var(--neon-green), var(--neon-cyan));
    }
    .timeline-node {
      position: relative;
      margin-bottom: 36px;
    }
    .timeline-node::before {
      content: '';
      position: absolute;
      left: -27px;
      top: 6px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--neon-green);
      box-shadow: 0 0 10px var(--neon-green);
    }

    /* 资讯列表 */
    .news-card {
      background: #121824;
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 12px;
      padding: 20px;
      transition: var(--transition-base);
    }
    .news-card:hover {
      border-color: var(--neon-cyan);
      background: #161E2D;
    }
    .news-date {
      color: var(--text-dim);
      font-size: 0.85rem;
    }

    /* 手风琴定制 */
    .accordion-button {
      background-color: #121722 !important;
      color: #FFFFFF !important;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 8px !important;
      box-shadow: none !important;
      padding: 18px 24px;
    }
    .accordion-button:not(.collapsed) {
      color: var(--neon-green) !important;
      border-color: var(--border-neon);
      background-color: #161D2B !important;
    }
    .accordion-body {
      background-color: #0E131C;
      color: var(--text-muted);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-top: none;
      border-radius: 0 0 8px 8px;
      padding: 20px 24px;
      line-height: 1.8;
    }
    .accordion-item {
      background: transparent;
      border: none;
      margin-bottom: 12px;
    }

    /* 合作Logo */
    .partner-logo-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 10px;
      padding: 24px 16px;
      text-align: center;
      color: var(--text-muted);
      font-weight: 700;
      font-size: 0.95rem;
      transition: var(--transition-base);
    }
    .partner-logo-box:hover {
      background: rgba(0, 255, 135, 0.05);
      border-color: var(--neon-green);
      color: #FFFFFF;
    }

    /* 页脚 */
    .site-footer {
      background: #06080D;
      border-top: 1px solid rgba(0, 255, 135, 0.2);
      padding: 65px 0 30px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .footer-col-title {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--neon-green);
    }
    .footer-links {
      list-style: none;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--neon-green);
      padding-left: 4px;
    }
    .copyright-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: 45px;
      padding-top: 25px;
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    @media (max-width: 991px) {
      body {
        padding-top: 96px;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
      .kpi-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      }
    }