/* roulang page: index */
/* :root 设计变量 */
    :root {
      --primary-deep-green: #0A4D3C;
      --primary-dark-green: #0A3B2E;
      --accent-amber: #F5A623;
      --accent-amber-hover: #E0960F;
      --bg-warm-light: #F8FAF5;
      --card-bg: #FFFFFF;
      --text-primary: #1E2B27;
      --text-secondary: #5A6B64;
      --border-light: #DDE4DF;
      --shadow-card: 0 2px 16px rgba(10,77,60,0.06);
      --shadow-card-hover: 0 8px 28px rgba(10,77,60,0.12);
      --shadow-amber-glow: 0 0 0 3px rgba(245,166,35,0.2);
      --radius-card: 12px;
      --radius-button: 8px;
      --radius-input: 6px;
      --radius-tag: 4px;
      --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-mono: "DIN Alternate", "Roboto Mono", "Courier New", monospace;
      --transition-smooth: all 0.25s ease;
    }
    
    /* 基础 Reset 与全局样式 */
    *, *::before, *::after {
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-body);
      background-color: var(--bg-warm-light);
      color: var(--text-primary);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    a {
      text-decoration: none;
      color: var(--primary-deep-green);
      transition: var(--transition-smooth);
    }
    
    a:hover {
      color: var(--accent-amber);
    }
    
    /* 自定义容器，为 Foundation 网格增加额外留白 */
    .custom-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* 按钮基础样式覆盖 */
    .button {
      font-family: var(--font-body);
      font-weight: 600;
      border-radius: var(--radius-button);
      transition: var(--transition-smooth);
      padding: 14px 32px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: none;
    }
    
    .button-primary-amber {
      background-color: var(--accent-amber);
      color: #FFFFFF !important;
      box-shadow: 0 4px 10px rgba(245,166,35,0.25);
    }
    
    .button-primary-amber:hover {
      background-color: var(--accent-amber-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(245,166,35,0.35);
      color: #FFFFFF;
    }
    
    .button-secondary-green {
      background: transparent;
      border: 2px solid var(--primary-deep-green);
      color: var(--primary-deep-green);
      padding: 12px 30px;
    }
    
    .button-secondary-green:hover {
      background-color: var(--primary-deep-green);
      color: #FFFFFF;
      transform: translateY(-2px);
      border-color: var(--primary-deep-green);
    }
    
    .button-white-outline {
      background: transparent;
      border: 2px solid #FFFFFF;
      color: #FFFFFF;
      padding: 12px 30px;
    }
    
    .button-white-outline:hover {
      background-color: #FFFFFF;
      color: var(--primary-deep-green);
      transform: translateY(-2px);
    }
    
    /* 卡片通用样式 */
    .custom-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: var(--transition-smooth);
      overflow: hidden;
      height: 100%;
    }
    
    .custom-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    
    /* 导航栏自定义 */
    .top-bar-custom {
      background: #FFFFFF;
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      padding: 0 20px;
      height: 70px;
      display: flex;
      align-items: center;
    }
    
    .logo-area {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .logo-text {
      font-family: var(--font-title);
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--primary-deep-green);
      letter-spacing: -0.5px;
    }
    
    .nav-links {
      display: flex;
      gap: 28px;
      margin-left: auto;
      margin-right: 20px;
    }
    
    .nav-links a {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding: 6px 0;
    }
    
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-deep-green);
      transition: width 0.2s ease;
    }
    
    .nav-links a:hover {
      color: var(--primary-deep-green);
    }
    
    .nav-links a:hover::after {
      width: 100%;
    }
    
    .search-box {
      background: #F0F4F1;
      border-radius: 20px;
      padding: 8px 16px;
      display: flex;
      align-items: center;
      gap: 6px;
      margin-right: 16px;
    }
    
    .search-box input {
      border: none;
      background: transparent;
      outline: none;
      font-size: 0.9rem;
      width: 140px;
      color: var(--text-primary);
    }
    
    .search-box input::placeholder {
      color: #8A9A92;
    }
    
    .mobile-menu-icon {
      display: none;
      font-size: 1.8rem;
      color: var(--primary-deep-green);
      cursor: pointer;
      margin-left: auto;
    }
    
    /* 移动端侧滑菜单 */
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: -100%;
      width: 80%;
      max-width: 320px;
      height: 100vh;
      background: #FFFFFF;
      box-shadow: -4px 0 20px rgba(0,0,0,0.08);
      z-index: 1100;
      transition: right 0.3s ease;
      padding: 30px 24px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    
    .mobile-drawer.open {
      right: 0;
    }
    
    .drawer-close {
      align-self: flex-end;
      font-size: 1.8rem;
      color: var(--text-secondary);
      cursor: pointer;
    }
    
    .mobile-drawer a {
      font-size: 1.2rem;
      font-weight: 500;
      color: var(--text-primary);
      padding: 8px 0;
      border-bottom: 1px solid var(--border-light);
    }
    
    /* Hero 区域 */
    .hero-section {
      background: linear-gradient(135deg, rgba(10,77,60,0.85) 0%, rgba(10,59,46,0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 90vh;
      display: flex;
      align-items: center;
      position: relative;
      margin-top: 70px;
      color: #FFFFFF;
    }
    
    .hero-content {
      padding: 60px 0;
    }
    
    .hero h1 {
      font-family: var(--font-title);
      font-weight: 700;
      font-size: 3.2rem;
      margin-bottom: 1rem;
      color: #FFFFFF;
    }
    
    .hero-sub {
      font-size: 1.2rem;
      opacity: 0.9;
      margin-bottom: 2rem;
    }
    
    .floating-cards {
      display: flex;
      gap: 20px;
      margin-top: 40px;
      flex-wrap: wrap;
    }
    
    .float-card {
      background: rgba(255,255,255,0.15);
      backdrop-filter: blur(12px);
      border-radius: 16px;
      padding: 18px 24px;
      color: #FFFFFF;
      min-width: 140px;
    }
    
    .float-card .metric-number {
      font-family: var(--font-mono);
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--accent-amber);
    }
    
    /* 数据看板 */
    .dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: -60px;
      position: relative;
      z-index: 10;
    }
    
    .metric-card {
      background: #FFFFFF;
      border-radius: 16px;
      padding: 28px 20px;
      text-align: center;
      box-shadow: 0 10px 30px rgba(10,77,60,0.08);
    }
    
    .metric-number-large {
      font-family: var(--font-mono);
      font-size: 3rem;
      font-weight: 700;
      color: var(--accent-amber);
      margin: 12px 0;
    }
    
    /* 服务网格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    
    .service-img {
      height: 180px;
      object-fit: cover;
    }
    
    /* 对比模块 */
    .comparison-container {
      display: flex;
      align-items: center;
      gap: 30px;
      background: #FFFFFF;
      border-radius: 24px;
      padding: 30px;
      box-shadow: var(--shadow-card);
    }
    
    .vs-badge {
      background: var(--accent-amber);
      color: #FFFFFF;
      border-radius: 50%;
      width: 60px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.4rem;
    }
    
    /* FAQ 手风琴自定义 */
    .accordion-title {
      font-family: var(--font-title);
      font-weight: 600;
      font-size: 1.1rem;
      background: #FFFFFF;
      border: none;
      padding: 20px 24px;
      border-radius: 12px;
      transition: background 0.3s;
    }
    
    .accordion-item.is-active .accordion-title {
      background: #F4FAF7;
    }
    
    /* CTA 区域 */
    .cta-section {
      background: var(--primary-dark-green);
      border-radius: 32px;
      margin: 40px 20px;
      padding: 60px 40px;
      color: #FFFFFF;
    }
    
    .footer-links a {
      color: #DDE4DF;
      font-size: 0.95rem;
    }
    
    .footer-links a:hover {
      color: var(--accent-amber);
    }
    
    /* 响应式设计 */
    @media (max-width: 1024px) {
      .nav-links, .search-box {
        display: none;
      }
      .mobile-menu-icon {
        display: block;
      }
      .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2.2rem;
      }
      .dashboard-grid {
        grid-template-columns: 1fr 1fr;
      }
      .service-grid {
        grid-template-columns: 1fr;
      }
      .comparison-container {
        flex-direction: column;
      }
      .cta-section {
        padding: 40px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    
    @media (max-width: 520px) {
      .floating-cards {
        flex-direction: column;
      }
      .dashboard-grid {
        grid-template-columns: 1fr;
      }
    }