/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #E86A17;
      --primary-dark: #C55A10;
      --secondary: #3E2C1F;
      --accent: #B87333;
      --light: #F7F3EE;
      --bg: #FAFAF7;
      --text: #4A3F38;
      --text-light: #6B5E55;
      --shadow-sm: 0 8px 30px rgba(62,44,31,0.06);
      --shadow-md: 0 16px 40px rgba(62,44,31,0.1);
      --shadow-hover: 0 20px 45px rgba(62,44,31,0.15);
      --radius-card: 24px;
      --radius-btn: 40px;
      --transition: all 0.25s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4, .data-number {
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.2;
    }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    /* 导航吸顶样式 */
    #mainNav {
      transition: background 0.3s ease, box-shadow 0.3s ease;
      background: transparent;
    }
    .nav-scrolled {
      background: var(--light) !important;
      box-shadow: 0 4px 20px rgba(62,44,31,0.08);
    }
    .nav-link {
      color: var(--secondary);
      font-weight: 500;
      transition: color 0.2s;
      text-decoration: none;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    /* 卡片样式 */
    .card-glow {
      background: var(--light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .card-glow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: var(--accent);
    }
    /* 按钮 */
    .btn-primary {
      background: var(--primary);
      color: white;
      border-radius: var(--radius-btn);
      padding: 0.9rem 2.2rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      box-shadow: 0 8px 18px rgba(232,106,23,0.25);
      border: none;
      cursor: pointer;
      text-decoration: none;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 12px 24px rgba(232,106,23,0.4);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      color: var(--secondary);
      border: 2px solid var(--secondary);
      border-radius: var(--radius-btn);
      padding: 0.85rem 2.1rem;
      font-weight: 600;
      transition: var(--transition);
      cursor: pointer;
      text-decoration: none;
    }
    .btn-outline:hover {
      background: var(--secondary);
      color: var(--light);
      border-color: var(--secondary);
    }
    /* 数据徽章 */
    .badge-data {
      background: var(--secondary);
      color: var(--light);
      border-radius: 50%;
      width: 110px;
      height: 110px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 0 3px var(--accent);
      font-weight: 900;
    }
    .data-number {
      color: var(--primary);
      font-size: 2.2rem;
      line-height: 1;
    }
    /* 证言卡片装饰条 */
    .testimonial-accent {
      border-left: 4px solid var(--primary);
    }
    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid rgba(62,44,31,0.1);
    }
    .faq-question {
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1.2rem 0;
      font-weight: 700;
      color: var(--secondary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      color: var(--text-light);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 1.2rem;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-icon {
      transition: transform 0.2s ease;
      font-size: 1.3rem;
      color: var(--primary);
    }
    /* 图片遮罩 */
    .img-overlay {
      background: linear-gradient(135deg, rgba(62,44,31,0.7) 0%, rgba(62,44,31,0.3) 100%);
    }
    /* 响应式调整 */
    @media (max-width: 768px) {
      .container {
        padding-left: 1rem;
        padding-right: 1rem;
      }
      h1 {
        font-size: 2.4rem !important;
      }
      .badge-data {
        width: 90px;
        height: 90px;
      }
      .data-number {
        font-size: 1.8rem;
      }
    }