/* roulang page: index */
:root {
      --bg-base: #070b14;
      --bg-dark: #0b1329;
      --bg-card: rgba(16, 24, 48, 0.72);
      --border-cyan: rgba(0, 210, 255, 0.2);
      --neon-blue: #00d2ff;
      --matrix-green: #00f5a0;
      --cyber-purple: #7928ca;
      --gold-accent: #d4af37;
      --gold-gradient: linear-gradient(135deg, #ffd700 0%, #b8860b 100%);
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --glow-shadow: 0 0 20px rgba(0, 210, 255, 0.35);
      --glow-gold: 0 0 25px rgba(212, 175, 55, 0.4);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
    }

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

    /* 顶部通知条 */
    .top-bar {
      background: rgba(11, 19, 41, 0.9);
      border-bottom: 1px solid rgba(0, 210, 255, 0.1);
      font-size: 13px;
      color: var(--text-muted);
      padding: 6px 0;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: var(--matrix-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--matrix-green);
      margin-right: 6px;
    }

    /* 导航栏 */
    .site-nav {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(7, 11, 20, 0.85);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-cyan);
      padding: 14px 0;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #fff;
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--neon-blue), var(--cyber-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      box-shadow: var(--glow-shadow);
    }
    .nav-links a {
      color: #cbd5e1;
      font-weight: 500;
      font-size: 15px;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
    }
    .nav-links a:hover {
      color: var(--neon-blue);
      background: rgba(0, 210, 255, 0.08);
    }

    /* 发光按钮体系 */
    .btn-glow-cyan {
      background: linear-gradient(90deg, #00d2ff 0%, #0099ff 100%);
      color: #070b14;
      font-weight: 700;
      border: none;
      padding: 10px 24px;
      border-radius: 30px;
      box-shadow: var(--glow-shadow);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-glow-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 210, 255, 0.7);
      color: #000;
    }
    .btn-outline-glow {
      background: transparent;
      color: var(--neon-blue);
      border: 1px solid var(--neon-blue);
      font-weight: 600;
      padding: 9px 22px;
      border-radius: 30px;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-outline-glow:hover {
      background: rgba(0, 210, 255, 0.15);
      color: #fff;
      box-shadow: var(--glow-shadow);
      transform: translateY(-2px);
    }
    .btn-gold {
      background: var(--gold-gradient);
      color: #070b14;
      font-weight: 800;
      border: none;
      padding: 12px 28px;
      border-radius: 30px;
      box-shadow: var(--glow-gold);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 35px rgba(255, 215, 0, 0.65);
      color: #000;
    }

    /* 通用板块与玻璃卡片 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-dark);
      border-top: 1px solid rgba(0, 210, 255, 0.08);
      border-bottom: 1px solid rgba(0, 210, 255, 0.08);
    }
    .section-title-wrap {
      margin-bottom: 50px;
    }
    .badge-tag {
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid rgba(0, 210, 255, 0.3);
      color: var(--neon-blue);
      font-size: 13px;
      padding: 5px 14px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 14px;
      letter-spacing: 1px;
      text-transform: uppercase;
      font-weight: 600;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto;
      font-size: 16px;
      line-height: 1.8;
    }
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: rgba(0, 210, 255, 0.45);
      box-shadow: var(--glow-shadow);
      transform: translateY(-5px);
    }

    /* 1. Hero 俱乐部黑金专属 */
    .hero-section {
      min-height: 85vh;
      display: flex;
      align-items: center;
      position: relative;
      background: radial-gradient(circle at 70% 30%, rgba(121, 40, 202, 0.25) 0%, rgba(7, 11, 20, 0.95) 75%),
                  url('/assets/images/150e8e5d7e822ac4.webp') center/cover no-repeat;
      padding: 100px 0 80px;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(7, 11, 20, 0.8) 0%, rgba(7, 11, 20, 0.96) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .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: #ffd700;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 20px;
      box-shadow: 0 0 15px rgba(212, 175, 55, 0.25);
    }
    .hero-title {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      color: #fff;
    }
    .hero-title span {
      background: linear-gradient(90deg, #00d2ff, #00f5a0);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-p {
      font-size: 16px;
      color: #cbd5e1;
      max-width: 680px;
      line-height: 1.8;
      margin-bottom: 35px;
    }
    .hero-card-gold {
      background: linear-gradient(145deg, rgba(20, 26, 46, 0.85) 0%, rgba(11, 15, 28, 0.95) 100%);
      border: 1px solid rgba(212, 175, 55, 0.3);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(212, 175, 55, 0.15);
      position: relative;
    }

    /* 蓝图：秒杀闪购专区样式 */
    .flash-sale-banner {
      background: linear-gradient(90deg, rgba(121, 40, 202, 0.3) 0%, rgba(0, 210, 255, 0.2) 100%);
      border: 1px solid rgba(0, 210, 255, 0.3);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      margin-bottom: 40px;
    }
    .countdown-box {
      background: rgba(7, 11, 20, 0.8);
      border: 1px solid var(--neon-blue);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      color: var(--neon-blue);
      font-family: monospace;
      font-size: 20px;
      font-weight: 800;
    }

    /* 架构图 / 控制台视觉框 */
    .arch-preview {
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 15px 35px rgba(0,0,0,0.5);
    }
    .arch-preview img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }
    .arch-preview:hover img {
      transform: scale(1.03);
    }

    /* 实机演示 UI 框 */
    .mock-window {
      background: #0a0e1a;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0,0,0,0.7);
    }
    .mock-header {
      background: rgba(16, 24, 48, 0.9);
      padding: 10px 18px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid rgba(0, 210, 255, 0.15);
    }
    .dot-ctrl {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      display: inline-block;
    }
    .dot-red { background: #ff5f56; }
    .dot-yellow { background: #ffbd2e; }
    .dot-green { background: #27c93f; }

    /* 数据指标条 */
    .metric-num {
      font-size: 42px;
      font-weight: 900;
      color: #fff;
      background: linear-gradient(180deg, #fff 30%, var(--neon-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-label {
      color: var(--text-muted);
      font-size: 14px;
      font-weight: 500;
    }

    /* 定价推荐高亮 */
    .pricing-card.popular {
      border: 2px solid var(--neon-blue);
      box-shadow: 0 0 35px rgba(0, 210, 255, 0.35);
      position: relative;
    }
    .popular-ribbon {
      position: absolute;
      top: 15px;
      right: 15px;
      background: var(--neon-blue);
      color: #070b14;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 20px;
    }

    /* FAQ 手风琴深色适配 */
    .accordion-item {
      background: var(--bg-card) !important;
      border: 1px solid var(--border-cyan) !important;
      margin-bottom: 14px;
      border-radius: var(--radius-sm) !important;
      overflow: hidden;
    }
    .accordion-button {
      background: transparent !important;
      color: #fff !important;
      font-weight: 600;
      font-size: 16px;
      padding: 20px 24px;
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      color: var(--neon-blue) !important;
      background: rgba(0, 210, 255, 0.05) !important;
      border-bottom: 1px solid rgba(0, 210, 255, 0.1);
    }
    .accordion-button::after {
      filter: invert(1);
    }
    .accordion-body {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
      padding: 22px 24px;
    }

    /* 表单输入控件 */
    .form-control-cyber {
      background: rgba(7, 11, 20, 0.8);
      border: 1px solid var(--border-cyan);
      color: #fff;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
    }
    .form-control-cyber:focus {
      background: rgba(11, 19, 41, 0.95);
      border-color: var(--neon-blue);
      color: #fff;
      box-shadow: 0 0 15px rgba(0, 210, 255, 0.3);
      outline: none;
    }

    /* 页脚样式 */
    footer {
      background: #04070d;
      border-top: 1px solid rgba(0, 210, 255, 0.15);
      padding: 70px 0 30px;
      color: var(--text-muted);
      font-size: 14px;
    }
    footer h5 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    footer ul {
      list-style: none;
      padding: 0;
    }
    footer ul li {
      margin-bottom: 10px;
    }
    footer ul a:hover {
      color: var(--neon-blue);
    }

    @media (max-width: 991px) {
      .hero-title { font-size: 34px; }
      .section-title { font-size: 28px; }
      .hero-section { padding: 70px 0 50px; }
    }
    @media (max-width: 768px) {
      .hero-title { font-size: 28px; }
      .metric-num { font-size: 32px; }
      .section-desc { font-size: 14px; }
    }