/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary: #0F3B3B;
      --primary-dark: #0A2424;
      --accent: #F4A261;
      --bg-warm: #FBF9F6;
      --card-bg: #FFFFFF;
      --text-main: #1C2B2B;
      --text-secondary: #5A6B6B;
      --border-light: rgba(15, 59, 59, 0.08);
      --radius-card: 24px;
      --radius-btn: 12px;
      --radius-badge: 20px;
      --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
      --shadow-hover: 0 12px 32px rgba(0,0,0,0.08);
      --transition: 0.2s ease;
    }
    
    * {
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-warm);
      color: var(--text-main);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    button {
      cursor: pointer;
      font-family: inherit;
    }
    
    /* 自定义导航样式 */
    .header-scrolled {
      background-color: rgba(251, 249, 246, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(15, 59, 59, 0.1);
    }
    
    .nav-link {
      position: relative;
      font-weight: 500;
      font-size: 0.95rem;
      transition: var(--transition);
    }
    
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: width var(--transition);
    }
    
    .nav-link:hover::after {
      width: 100%;
    }
    
    .btn-primary {
      background-color: var(--primary);
      color: white;
      padding: 0.75rem 1.8rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition);
      border: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    
    .btn-primary:hover {
      background-color: var(--primary-dark);
      box-shadow: 0 6px 16px rgba(15, 59, 59, 0.3);
      transform: translateY(-1px);
    }
    
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      padding: 0.75rem 1.8rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition);
    }
    
    .btn-outline:hover {
      background-color: rgba(15, 59, 59, 0.05);
      border-color: var(--primary-dark);
    }
    
    .btn-accent {
      background-color: var(--accent);
      color: white;
      padding: 0.75rem 2rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition);
      border: none;
    }
    
    .btn-accent:hover {
      filter: brightness(1.05);
      box-shadow: 0 6px 18px rgba(244, 162, 97, 0.4);
    }
    
    /* 卡片基础样式 */
    .card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 2rem;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      border: 1px solid transparent;
    }
    
    .card:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 59, 59, 0.15);
      transform: translateY(-4px);
    }
    
    /* 渐变背景块 */
    .brand-gradient {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    }
    
    /* 徽章 */
    .badge {
      background-color: rgba(244, 162, 97, 0.15);
      color: var(--accent);
      font-weight: 600;
      padding: 0.25rem 1rem;
      border-radius: 20px;
      font-size: 0.85rem;
    }
    
    /* FAQ 手风琴 */
    .faq-item {
      background: #F7F5F2;
      border-radius: 16px;
      margin-bottom: 1rem;
      transition: var(--transition);
    }
    
    .faq-item.active {
      background: white;
      border-left: 4px solid var(--primary);
    }
    
    .faq-question {
      cursor: pointer;
      padding: 1.5rem;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      padding: 0 1.5rem;
    }
    
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 1.5rem 1.5rem;
    }
    
    .faq-arrow {
      transition: transform 0.3s ease;
    }
    
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }
    
    /* 脉冲点 */
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: #2ECC71;
      border-radius: 50%;
      display: inline-block;
      animation: pulse 1.5s infinite;
    }
    
    @keyframes pulse {
      0% { opacity: 1; }
      50% { opacity: 0.4; }
      100% { opacity: 1; }
    }
    
    /* 案例卡片图片遮罩 */
    .case-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, rgba(15,59,59,0.6) 0%, rgba(10,36,36,0.8) 100%);
      z-index: 1;
    }
    
    /* 汉堡菜单 */
    .mobile-menu {
      display: none;
    }
    
    @media (max-width: 768px) {
      .desktop-nav {
        display: none;
      }
      .mobile-menu {
        display: block;
      }
      .container {
        padding: 0 16px;
      }
      h1 {
        font-size: 2rem !important;
      }
      h2 {
        font-size: 1.5rem !important;
      }
    }
    
    @media (min-width: 769px) {
      .mobile-menu-content {
        display: none;
      }
    }