/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary-signal: #00E5A0;
      --primary-dark: #0B1E3C;
      --bg-warm: #F5F6FA;
      --card-white: #FFFFFF;
      --text-heading: #0B1E3C;
      --text-body: #3A4255;
      --text-weak: #7B829A;
      --accent-glow: #00C292;
      --border-light: rgba(255,255,255,0.6);
      --shadow-card: 0 8px 32px rgba(0,229,160,0.08);
      --shadow-hover: 0 16px 40px rgba(0,229,160,0.15);
      --radius-lg: 16px;
      --radius-btn: 12px;
      --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      background-color: var(--bg-warm);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container-custom {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 导航栏整体 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      backdrop-filter: blur(12px);
      background: rgba(245,246,250,0.9);
      border-bottom: 1px solid rgba(11,30,60,0.05);
      transition: all 0.3s ease;
    }

    .brand-text {
      font-weight: 700;
      font-size: 1.5rem;
      letter-spacing: -0.02em;
      color: var(--text-heading);
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
    }

    .brand-dot {
      width: 10px;
      height: 10px;
      background: var(--primary-signal);
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 12px var(--primary-signal);
      animation: pulse-dot 1.8s infinite;
    }

    @keyframes pulse-dot {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 20px var(--primary-signal); }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    .channel-tag {
      padding: 6px 16px;
      border-radius: 40px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-heading);
      background: transparent;
      transition: all 0.2s ease;
      text-decoration: none;
      white-space: nowrap;
    }

    .channel-tag:hover {
      background: rgba(0,229,160,0.1);
      color: #0B1E3C;
    }

    .channel-tag.active-tab {
      background: rgba(0,229,160,0.08);
      border-bottom: 3px solid var(--primary-signal);
      border-radius: 40px 40px 8px 8px;
      font-weight: 600;
    }

    /* 汉堡菜单 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      color: var(--text-heading);
      cursor: pointer;
    }

    @media (max-width: 768px) {
      .desktop-nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .mobile-menu {
        display: none;
        flex-direction: column;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        padding: 20px;
        border-radius: 20px;
        margin-top: 12px;
        box-shadow: var(--shadow-card);
      }
      .mobile-menu.open {
        display: flex;
      }
    }

    /* 按钮样式 */
    .btn-primary {
      background: var(--primary-signal);
      color: #0B1E3C;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px rgba(0,229,160,0.3);
      border: none;
      cursor: pointer;
      text-decoration: none;
    }
    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(0,229,160,0.6);
      transform: scale(1.03);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary-signal);
      color: var(--primary-signal);
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      transition: 0.25s;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }
    .btn-outline:hover {
      background: rgba(0,229,160,0.1);
    }

    /* 卡片玻璃效果 */
    .glass-card {
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255,255,255,0.6);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .hero-bg {
      background: linear-gradient(135deg, #0B1E3C 0%, #132B4F 100%);
      position: relative;
    }
    .hero-bg::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle at 30% 40%, rgba(0,229,160,0.08) 0%, transparent 50%);
      pointer-events: none;
    }

    .faq-item {
      border-bottom: 1px solid rgba(0,0,0,0.06);
      padding: 18px 0;
      cursor: pointer;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-answer {
      display: none;
      color: var(--text-body);
      padding-top: 12px;
      line-height: 1.7;
    }
    .faq-question {
      font-weight: 600;
      color: var(--text-heading);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .stat-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--primary-signal);
    }

    footer a {
      color: var(--text-weak);
      text-decoration: none;
      transition: color 0.2s;
    }
    footer a:hover {
      color: var(--primary-signal);
    }

    @media (max-width: 768px) {
      .stat-number {
        font-size: 2.2rem;
      }
      .container-custom {
        padding-left: 20px;
        padding-right: 20px;
      }
    }