/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary-deep: #0F2B46;
      --accent-terracotta: #E85D3A;
      --accent-hover: #C94A2E;
      --bg-warm: #F7F3EE;
      --card-border: #EADDD0;
      --text-dark: #1A1A1A;
      --text-muted: #5C5C5C;
      --white: #FFFFFF;
      --footer-bg: #EAE3DA;
      --shadow-card: 0 8px 30px rgba(15, 43, 70, 0.08);
      --shadow-hover: 0 12px 32px rgba(15, 43, 70, 0.15);
      --radius-card: 20px;
      --radius-btn: 12px;
      --radius-input: 8px;
      --radius-badge: 24px;
      --radius-faq: 6px;
      --transition: all 0.3s ease;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-warm);
      color: var(--text-dark);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

    /* 导航桌面 */
    .desktop-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid #EADDD0;
    }

    .nav-link {
      position: relative;
      font-weight: 500;
      color: var(--primary-deep);
      transition: color 0.2s;
      text-decoration: none;
      padding: 8px 4px;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background-color: var(--accent-terracotta);
      transition: width 0.3s ease, left 0.3s ease;
    }

    .nav-link:hover {
      color: var(--accent-terracotta);
    }

    .nav-link:hover::after {
      width: 100%;
      left: 0;
    }

    /* 移动端底部Tab */
    .mobile-tab-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: white;
      border-top: 1px solid #EADDD0;
      box-shadow: 0 -4px 12px rgba(0,0,0,0.04);
      display: flex;
      justify-content: space-around;
      align-items: center;
      padding: 8px 16px 12px;
      z-index: 50;
    }

    .tab-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: rgba(15, 43, 70, 0.45);
      font-size: 11px;
      transition: color 0.2s;
      text-decoration: none;
    }

    .tab-item i {
      font-size: 22px;
      margin-bottom: 2px;
    }

    .tab-item.active {
      color: var(--accent-terracotta);
    }

    /* 按钮 */
    .btn-primary {
      background-color: var(--accent-terracotta);
      color: white;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
      display: inline-block;
      text-align: center;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(232, 93, 58, 0.2);
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(201, 74, 46, 0.3);
    }

    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--primary-deep);
      color: var(--primary-deep);
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      transition: all 0.25s;
      display: inline-block;
      text-align: center;
      cursor: pointer;
    }

    .btn-secondary:hover {
      background-color: rgba(15, 43, 70, 0.08);
      border-color: var(--primary-deep);
    }

    /* 卡片与组件 */
    .service-card {
      background: var(--white);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      transition: transform 0.25s, box-shadow 0.3s;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .icon-bg {
      width: 64px;
      height: 64px;
      background-color: rgba(15, 43, 70, 0.05);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-terracotta);
      font-size: 28px;
      transition: background-color 0.25s;
    }

    .service-card:hover .icon-bg {
      background-color: rgba(232, 93, 58, 0.12);
    }

    .badge-capsule {
      background-color: var(--accent-terracotta);
      color: white;
      font-size: 11px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: var(--radius-badge);
      letter-spacing: 0.3px;
    }

    .data-number {
      font-size: 40px;
      font-weight: 800;
      color: var(--accent-terracotta);
      line-height: 1.2;
    }

    /* FAQ手风琴 */
    .faq-item {
      border-bottom: 1px solid #EADDD0;
    }

    .faq-question {
      width: 100%;
      background: transparent;
      border: none;
      padding: 18px 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 600;
      font-size: 18px;
      color: var(--text-dark);
      cursor: pointer;
      text-align: left;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.25s;
      background-color: rgba(247, 243, 238, 0.5);
      border-radius: var(--radius-faq);
      padding-left: 16px;
      padding-right: 16px;
      color: var(--text-muted);
      font-size: 15px;
    }

    .faq-item.open .faq-answer {
      max-height: 200px;
      padding-top: 16px;
      padding-bottom: 16px;
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
      color: var(--accent-terracotta);
    }

    .faq-icon {
      transition: transform 0.3s;
      color: var(--primary-deep);
      font-size: 18px;
    }

    /* 表单 */
    .input-field {
      width: 100%;
      padding: 14px 18px;
      background: white;
      border: 1px solid #EADDD0;
      border-radius: var(--radius-input);
      font-size: 14px;
      transition: border 0.2s;
      outline: none;
    }

    .input-field:focus {
      border-color: var(--accent-terracotta);
      box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.1);
    }

    @media (max-width: 768px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }
      .mobile-hidden {
        display: none;
      }
      .desktop-nav {
        display: none;
      }
      h1 {
        font-size: 36px !important;
      }
      h2 {
        font-size: 28px !important;
      }
    }

    @media (min-width: 769px) {
      .mobile-tab-bar {
        display: none;
      }
    }

    @media (min-width: 1024px) {
      .service-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .hero-bg {
      background: linear-gradient(135deg, #0F2B46 0%, #1A3F5C 100%);
    }

@keyframes bounce-slow {
          0%, 100% { transform: translateY(0); }
          50% { transform: translateY(-8px); }
        }
        .animate-bounce-slow {
          animation: bounce-slow 3s infinite;
        }