/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary-gradient: linear-gradient(135deg, #6C5CE7 0%, #3B82F6 100%);
      --accent-orange: #FF6B35;
      --bg-deep: #0A1929;
      --bg-card: rgba(19, 47, 76, 0.6);
      --border-light: rgba(255, 255, 255, 0.12);
      --text-primary: #FFFFFF;
      --text-secondary: #B0C4DE;
      --text-muted: #8899AA;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.5);
      --radius-card: 20px;
      --radius-btn: 9999px;
      --backdrop-blur: blur(16px);
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-deep);
      color: var(--text-secondary);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* 自定义滚动条 */
    ::-webkit-scrollbar {
      width: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #0A1929;
    }
    ::-webkit-scrollbar-thumb {
      background: #3B82F6;
      border-radius: 10px;
    }

    /* 容器与布局辅助 */
    .container-custom {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 玻璃拟态卡片基础 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: var(--backdrop-blur);
      -webkit-backdrop-filter: var(--backdrop-blur);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }
    .glass-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(108, 92, 231, 0.35);
    }

    /* 发光按钮 */
    .btn-primary {
      background: var(--primary-gradient);
      border: none;
      color: white;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 0.85rem 2.2rem;
      box-shadow: 0 0 18px rgba(108, 92, 231, 0.6);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      letter-spacing: 0.03em;
      cursor: pointer;
      text-decoration: none;
    }
    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(108, 92, 231, 0.9);
      transform: scale(1.03);
      filter: brightness(1.1);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid #6C5CE7;
      color: #E0E7FF;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 0.8rem 2rem;
      backdrop-filter: blur(8px);
      transition: all 0.3s ease;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }
    .btn-outline:hover {
      background: rgba(108, 92, 231, 0.25);
      border-color: #A78BFA;
      color: white;
    }

    /* 导航胶囊 */
    .nav-capsule {
      background: rgba(10, 25, 50, 0.75);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-radius: 60px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    }

    .nav-link {
      color: #B0C4DE;
      font-weight: 500;
      transition: color 0.2s, text-shadow 0.2s;
      font-size: 0.95rem;
    }
    .nav-link:hover {
      color: #FFFFFF;
      text-shadow: 0 0 8px rgba(108,92,231,0.8);
    }

    /* 渐变文字 */
    .text-gradient {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .accent-text {
      color: var(--accent-orange);
    }

    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .faq-button {
      width: 100%;
      text-align: left;
      background: transparent;
      border: none;
      color: #FFFFFF;
      font-weight: 600;
      font-size: 1.1rem;
      padding: 1.25rem 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      color: #B0C4DE;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 1.25rem;
    }

    /* 粒子背景简易模拟 */
    .hero-bg-effect {
      background-image: radial-gradient(circle at 30% 40%, rgba(108,92,231,0.15) 0%, transparent 35%),
                        radial-gradient(circle at 70% 60%, rgba(59,130,246,0.2) 0%, transparent 40%);
    }

    /* 移动端菜单 */
    @media (max-width: 1023px) {
      .mobile-menu {
        display: none;
      }
      .mobile-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 1rem;
        right: 1rem;
        background: rgba(10, 25, 50, 0.95);
        backdrop-filter: blur(20px);
        border-radius: 28px;
        padding: 1.5rem;
        border: 1px solid rgba(255,255,255,0.18);
        gap: 1rem;
      }
    }