/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #0A2647;
      --primary-dark: #061F3D;
      --secondary: #2C74B3;
      --accent: #D4AF37;
      --accent-light: #E5C76B;
      --bg: #F8FAFC;
      --white: #FFFFFF;
      --text: #1E293B;
      --text-light: #64748B;
      --success: #16A34A;
      --danger: #DC2626;
      --border-light: #E2E8F0;
      --shadow-card: 0 4px 12px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
      --shadow-hover: 0 12px 24px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
      --radius-lg: 12px;
      --radius-md: 8px;
      --transition: 0.25s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Inter", sans-serif;
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .font-tnum {
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }
    .desktop-nav {
      width: 240px;
      background-color: var(--primary);
      position: fixed;
      top: 0;
      left: 0;
      height: 100vh;
      z-index: 40;
      display: flex;
      flex-direction: column;
      padding: 2rem 1.5rem;
      box-shadow: 4px 0 12px rgba(0,0,0,0.06);
      transition: transform 0.3s ease;
    }
    .nav-logo {
      font-size: 1.75rem;
      font-weight: 700;
      color: white;
      letter-spacing: 0.5px;
      margin-bottom: 2.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .nav-logo i {
      color: var(--accent);
      font-size: 2rem;
    }
    .nav-link {
      display: block;
      color: rgba(255,255,255,0.8);
      padding: 0.75rem 1rem;
      margin-bottom: 0.5rem;
      border-radius: var(--radius-md);
      font-weight: 500;
      transition: var(--transition);
      border-left: 3px solid transparent;
      text-decoration: none;
    }
    .nav-link:hover, .nav-link.active {
      background-color: rgba(255,255,255,0.08);
      color: white;
      border-left-color: var(--secondary);
      padding-left: 1.25rem;
    }
    .mobile-header {
      display: none;
      background-color: var(--primary);
      color: white;
      padding: 1rem 1.5rem;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }
    .mobile-menu {
      background-color: var(--primary);
      position: fixed;
      top: 64px;
      left: 0;
      width: 100%;
      z-index: 45;
      flex-direction: column;
      padding: 1rem 1.5rem;
      display: none;
      box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    }
    .mobile-menu.open {
      display: flex;
    }
    .main-content {
      margin-left: 240px;
      width: calc(100% - 240px);
    }
    @media (max-width: 1024px) {
      .desktop-nav {
        display: none;
      }
      .mobile-header {
        display: flex;
      }
      .main-content {
        margin-left: 0;
        width: 100%;
        padding-top: 70px;
      }
    }
    .section-padding {
      padding: 5rem 2rem;
    }
    @media (max-width: 768px) {
      .section-padding {
        padding: 3rem 1.5rem;
      }
    }
    .card {
      background: var(--white);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      padding: 2rem;
      height: 100%;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .btn-primary {
      background-color: var(--primary);
      color: white;
      padding: 0.875rem 2rem;
      border-radius: var(--radius-md);
      font-weight: 600;
      transition: var(--transition);
      display: inline-block;
      text-align: center;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: scale(1.02);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--secondary);
      color: var(--secondary);
      padding: 0.875rem 2rem;
      border-radius: var(--radius-md);
      font-weight: 600;
      transition: var(--transition);
      display: inline-block;
      text-align: center;
    }
    .btn-outline:hover {
      background-color: rgba(44,116,179,0.08);
    }
    .btn-accent {
      background-color: var(--accent);
      color: var(--primary);
      font-weight: 700;
      padding: 0.875rem 2rem;
      border-radius: var(--radius-md);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-accent:hover {
      background-color: var(--accent-light);
      transform: scale(1.02);
    }
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      overflow: hidden;
    }
    .faq-question {
      background-color: #F1F5F9;
      padding: 1.25rem 1.5rem;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background-color: #E2E8F0;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: white;
      padding: 0 1.5rem;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding: 1.25rem 1.5rem;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-icon {
      transition: transform 0.3s ease;
      font-size: 1.25rem;
      color: var(--secondary);
    }
    input, select {
      border: none;
      border-bottom: 2px solid #CBD5E1;
      padding: 0.75rem 0.25rem;
      background: transparent;
      width: 100%;
      outline: none;
      transition: border-color 0.2s;
      font-size: 1rem;
    }
    input:focus, select:focus {
      border-bottom-color: var(--secondary);
    }
    .comparison-table th, .comparison-table td {
      padding: 1rem 1.5rem;
      text-align: left;
      border-bottom: 1px solid var(--border-light);
    }
    .badge-vip {
      background-color: var(--accent);
      color: var(--primary);
      font-weight: 700;
      padding: 0.2rem 0.8rem;
      border-radius: 20px;
      font-size: 0.8rem;
      letter-spacing: 0.3px;
    }
    .gradient-overlay {
      background: linear-gradient(90deg, rgba(10,38,71,0.04) 0%, rgba(248,250,252,0.9) 50%);
    }