/* roulang page: index */
:root {
      --bg-dark: #0D1117;
      --bg-surface: #161B22;
      --bg-card: #1c2129;
      --border-color: #30363D;
      --text-main: #F0F6FC;
      --text-muted: #8B949E;
      --text-sub: #484F58;
      --accent-purple: #7928CA;
      --accent-green: #00DF8F;
      --accent-gold: #D4AF37;
      --accent-gold-gradient: linear-gradient(135deg, #FFE57F 0%, #D4AF37 50%, #AA771C 100%);
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-pill: 9999px;
      --glow-purple: 0 0 20px rgba(121, 40, 202, 0.25);
      --glow-green: 0 0 15px rgba(0, 223, 143, 0.3);
    }

    * { box-sizing: border-box; }
    html, body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--accent-green); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }

    /* 顶部元数据栏 */
    .top-bar-meta {
      background: #090d12;
      border-bottom: 1px solid var(--border-color);
      padding: 6px 0;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .top-bar-meta a { color: var(--text-muted); }
    .top-bar-meta a:hover { color: var(--accent-green); }

    /* 主导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(13, 17, 23, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.01em;
      color: var(--text-main);
    }
    .nav-brand-badge {
      width: 32px;
      height: 32px;
      background: var(--accent-purple);
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--glow-purple);
      color: #fff;
    }

    /* 分段标签控件 */
    .nav-segmented {
      display: inline-flex;
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      padding: 4px;
      gap: 4px;
    }
    .nav-segmented a {
      padding: 6px 16px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-radius: var(--radius-pill);
      font-weight: 500;
      white-space: nowrap;
    }
    .nav-segmented a:hover,
    .nav-segmented a.active {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-segmented a.active {
      border: 1px solid rgba(0, 223, 143, 0.4);
      color: var(--accent-green);
    }

    .btn-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 24px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      font-size: 0.92rem;
      cursor: pointer;
      border: none;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .btn-primary {
      background: var(--accent-green);
      color: #0D1117;
      box-shadow: var(--glow-green);
    }
    .btn-primary:hover {
      background: #00fa9f;
      color: #000;
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--accent-green);
      color: var(--accent-green);
      background: rgba(0, 223, 143, 0.05);
    }
    .btn-gold {
      background: var(--accent-gold-gradient);
      color: #1a1200;
      font-weight: 700;
    }
    .btn-gold:hover {
      box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
      transform: translateY(-2px);
      color: #000;
    }

    /* 板块共有属性 */
    section.site-section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    section.site-section-alt {
      background: var(--bg-surface);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      letter-spacing: -0.01em;
      margin-bottom: 14px;
      color: var(--text-main);
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0;
    }
    .badge-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      text-transform: uppercase;
      padding: 3px 10px;
      border-radius: var(--radius-pill);
      background: rgba(121, 40, 202, 0.2);
      color: #b388ff;
      border: 1px solid rgba(121, 40, 202, 0.4);
      margin-bottom: 12px;
    }

    /* 卡片体系 */
    .esports-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
      position: relative;
    }
    .esports-card:hover {
      transform: translateY(-4px);
      border-color: var(--accent-green);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    }

    /* 模块1：Hero 会员俱乐部黑金感 */
    .hero-vip-section {
      background: radial-gradient(circle at 80% 20%, rgba(121, 40, 202, 0.2) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
                  var(--bg-dark);
      padding: 90px 0 80px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .vip-gold-card {
      background: linear-gradient(135deg, rgba(30, 35, 45, 0.9) 0%, rgba(20, 24, 30, 0.95) 100%);
      border: 1px solid rgba(212, 175, 55, 0.3);
      border-radius: 12px;
      padding: 32px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
      position: relative;
    }
    .vip-gold-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(212, 175, 55, 0.15);
      border: 1px solid rgba(212, 175, 55, 0.5);
      color: #FFE57F;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .vip-tier-list {
      list-style: none;
      margin: 0 0 24px 0;
      padding: 0;
    }
    .vip-tier-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(255,255,255,0.08);
      font-size: 0.92rem;
    }
    .vip-tier-list li span:first-child { color: var(--text-muted); }
    .vip-tier-list li span:last-child { color: #FFE57F; font-weight: 600; }

    /* 模块7：数据条 */
    .metric-strip {
      background: #11161d;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 45px 0;
    }
    .metric-item {
      text-align: center;
      padding: 10px;
    }
    .metric-num {
      font-size: 2.8rem;
      font-weight: 800;
      font-family: ui-monospace, monospace;
      color: var(--accent-green);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 手风琴覆盖样式 */
    .accordion {
      background: transparent;
      border: none;
    }
    .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md) !important;
      margin-bottom: 12px;
      background: var(--bg-card);
      overflow: hidden;
    }
    .accordion-title {
      background: transparent !important;
      color: var(--text-main) !important;
      font-weight: 600;
      font-size: 1.05rem;
      padding: 18px 24px;
      border: none !important;
    }
    .accordion-title:hover {
      background: rgba(255,255,255,0.03) !important;
      color: var(--accent-green) !important;
    }
    .accordion-content {
      background: transparent !important;
      border: none !important;
      border-top: 1px solid rgba(255,255,255,0.05) !important;
      padding: 20px 24px;
      color: var(--text-muted);
      font-size: 0.96rem;
      line-height: 1.8;
    }

    /* 试用申请表单框 */
    .trial-form-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .form-control-custom {
      background: #0d1117;
      border: 1px solid var(--border-color);
      color: #fff;
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      width: 100%;
      margin-bottom: 16px;
      outline: none;
    }
    .form-control-custom:focus {
      border-color: var(--accent-green);
      background: #090d12;
    }

    /* 页脚 */
    footer.site-footer {
      background: #080b0f;
      padding: 60px 0 30px;
      border-top: 1px solid var(--border-color);
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .footer-col h5 {
      color: var(--text-main);
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--accent-green);
    }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.07);
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    @media (max-width: 768px) {
      .nav-segmented { display: none; }
      .section-title { font-size: 1.6rem; }
      .metric-num { font-size: 2.2rem; }
    }