/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --deep-blue: #0A0F24;
      --gold: #D4AF37;
      --cyan: #00E5FF;
      --coral: #FF6B6B;
      --text-primary: #E8ECF1;
      --text-secondary: #8E9BAE;
      --card-bg: rgba(15, 25, 50, 0.7);
      --footer-bg: #060B1A;
      --border-light: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 229, 255, 0.4);
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --shadow-gold: 0 0 20px rgba(212, 175, 55, 0.3);
      --shadow-gold-hover: 0 0 35px rgba(212, 175, 55, 0.6);
      --radius-lg: 16px;
      --radius-md: 12px;
      --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Inter", sans-serif;
      background-color: var(--deep-blue);
      color: var(--text-primary);
      line-height: 1.7;
      margin: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: var(--transition-smooth);
    }
    .glass-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 40px rgba(0,0,0,0.6);
      border-color: rgba(255,255,255,0.2);
    }
    .btn-primary {
      background: var(--gold);
      color: var(--deep-blue);
      font-weight: 600;
      border-radius: var(--radius-md);
      padding: 14px 32px;
      box-shadow: var(--shadow-gold);
      transition: var(--transition-smooth);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      letter-spacing: 0.5px;
    }
    .btn-primary:hover {
      box-shadow: var(--shadow-gold-hover);
      transform: scale(1.03);
      background: #e0c14a;
    }
    .btn-outline-cyan {
      background: transparent;
      border: 1px solid var(--cyan);
      color: var(--cyan);
      border-radius: var(--radius-md);
      padding: 14px 32px;
      font-weight: 500;
      transition: var(--transition-smooth);
      cursor: pointer;
    }
    .btn-outline-cyan:hover {
      background: rgba(0, 229, 255, 0.1);
      box-shadow: 0 0 25px rgba(0,229,255,0.4);
      border-color: #fff;
    }
    .nav-link {
      color: var(--text-secondary);
      transition: color 0.2s;
      font-weight: 500;
      letter-spacing: 0.3px;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--gold);
    }
    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      line-height: 1.3;
      color: white;
    }
    .text-gradient {
      background: linear-gradient(135deg, var(--gold) 0%, var(--cyan) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .stat-number {
      font-size: 3rem;
      font-weight: 700;
      color: var(--cyan);
      text-shadow: 0 0 15px rgba(0,229,255,0.5);
      line-height: 1.2;
    }
    .faq-item {
      background: rgba(15, 25, 50, 0.5);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      transition: var(--transition-smooth);
    }
    .faq-item[open] {
      border-color: var(--cyan);
      box-shadow: 0 0 20px rgba(0,229,255,0.15);
    }
    .faq-item summary {
      color: white;
      font-weight: 600;
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-arrow {
      color: var(--cyan);
      transition: transform 0.3s;
    }
    .faq-item[open] .faq-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 24px 20px;
      color: var(--text-secondary);
    }
    @media (max-width: 640px) {
      .section-title { font-size: 2rem; }
      .stat-number { font-size: 2.2rem; }
    }
    .mobile-menu {
      background: rgba(10, 15, 36, 0.95);
      backdrop-filter: blur(20px);
    }