/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #0F5E3A;
      --primary-light: #1a7a4c;
      --accent: #F4A221;
      --accent-hover: #E08F0D;
      --bg-light: #F9FBF8;
      --bg-dark: #1C2D24;
      --text-main: #1A1A1A;
      --text-soft: #4A4A4A;
      --border-soft: #E5EDE5;
      --card-bg: #FFFFFF;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-tag: 6px;
      --shadow-sm: 0 4px 16px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Inter", "Segoe UI", sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      font-family: var(--font-sans);
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    /* 导航玻璃效果 */
    .nav-glass {
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .nav-scrolled {
      background: rgba(255,255,255,0.98);
      box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    }
    .nav-link {
      position: relative;
      font-weight: 500;
      padding: 0.5rem 0.75rem;
      transition: color 0.2s;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 2px;
      background-color: var(--accent);
      border-radius: 2px;
      transition: width 0.25s ease;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link:hover::after {
      width: 70%;
    }
    /* 移动端菜单 */
    .mobile-menu {
      transform: translateX(100%);
      transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .mobile-menu.open {
      transform: translateX(0);
    }
    /* 卡片通用 */
    .card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      overflow: hidden;
    }
    .card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .btn-primary {
      background-color: var(--accent);
      color: white;
      border-radius: var(--radius-btn);
      padding: 0.75rem 2rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 2px 8px rgba(244,162,33,0.3);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: scale(1.03);
      box-shadow: 0 4px 14px rgba(244,162,33,0.4);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      border-radius: var(--radius-btn);
      padding: 0.75rem 2rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      transition: all 0.2s ease;
      cursor: pointer;
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: white;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
    }
    @media (max-width: 640px) {
      .section-title {
        font-size: 1.9rem;
      }
    }
    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid var(--border-soft);
    }
    .faq-question {
      cursor: pointer;
      padding: 1.2rem 0;
      font-weight: 700;
      font-size: 1.15rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
      transition: color 0.2s;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      background-color: #F2F7F1;
      border-radius: 8px;
      margin-bottom: 0.5rem;
      padding-left: 1rem;
      padding-right: 1rem;
      color: var(--text-soft);
    }
    .faq-item.active .faq-answer {
      max-height: 220px;
      padding-top: 1rem;
      padding-bottom: 1rem;
    }
    .faq-indicator {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      margin-right: 0.8rem;
    }