/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #ff5722;
      --primary-soft: #ff8a50;
      --secondary: #1e1e2f;
      --accent: #7c3aed;
      --bg-dark: #0f0f1a;
      --bg-card: #1a1a2e;
      --bg-section: #16162a;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --border-soft: rgba(255,255,255,0.06);
      --border-active: rgba(255,255,255,0.15);
      --radius-lg: 1.5rem;
      --radius-md: 1rem;
      --radius-sm: 0.75rem;
      --shadow-card: 0 12px 30px -10px rgba(0,0,0,0.6);
      --shadow-elevated: 0 25px 45px -12px rgba(0,0,0,0.7);
      --transition-base: all 0.2s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      margin: 0;
      background-color: var(--bg-dark);
      color: var(--text-main);
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }
    a, button, input {
      font-family: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    /* 自定义容器与视觉效果 */
    .glass-panel {
      background: rgba(26, 26, 46, 0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-card);
    }
    .gradient-text {
      background: linear-gradient(135deg, #ff8a50 0%, #ff5722 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .btn-primary {
      background: var(--primary);
      color: white;
      border-radius: 2.5rem;
      padding: 0.75rem 2rem;
      font-weight: 600;
      transition: var(--transition-base);
      box-shadow: 0 8px 20px -8px rgba(255,87,34,0.4);
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: #ff7043;
      box-shadow: 0 12px 24px -8px rgba(255,87,34,0.6);
      transform: translateY(-2px);
    }
    .btn-outline-light {
      background: transparent;
      border: 1px solid rgba(255,255,255,0.3);
      color: white;
      border-radius: 2.5rem;
      padding: 0.75rem 2rem;
      font-weight: 500;
      transition: var(--transition-base);
      backdrop-filter: blur(4px);
    }
    .btn-outline-light:hover {
      background: rgba(255,255,255,0.08);
      border-color: rgba(255,255,255,0.6);
    }
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 30px -12px rgba(0,0,0,0.8);
    }
    .nav-link {
      position: relative;
      text-decoration: none;
      color: var(--text-muted);
      font-weight: 500;
      padding: 0.5rem 0.25rem;
      transition: color 0.2s;
    }
    .nav-link:hover, .nav-link.active {
      color: white;
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    /* 移动菜单调整 */
    @media (max-width: 768px) {
      .mobile-menu {
        background: rgba(15,15,26,0.96);
        backdrop-filter: blur(20px);
      }
    }
    .badge-tag {
      background: rgba(124,58,237,0.2);
      color: #c4b5fd;
      border-radius: 2rem;
      padding: 0.3rem 1rem;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding-top: 1rem;
    }