/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --primary-deep: #2C3E50;
      --accent-copper: #C97E3A;
      --bg-warm: #F5F2ED;
      --card-bg: #FEFCF9;
      --text-main: #1E1E1E;
      --text-secondary: #5C5C5C;
      --success-green: #1B5E3F;
      --white: #FFFFFF;
      --border-light: rgba(44,62,80,0.08);
      --shadow-sm: 0 4px 20px rgba(44,62,80,0.06);
      --shadow-hover: 0 8px 30px rgba(44,62,80,0.12);
      --radius-card: 12px;
      --radius-btn: 8px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Inter", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      background-color: var(--bg-warm);
      color: var(--text-main);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

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

    /* 导航系统 */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background-color: var(--bg-warm);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border-light);
    }

    .brand-logo {
      font-weight: 700;
      font-size: 1.5rem;
      letter-spacing: 0.02em;
      color: var(--primary-deep);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo i {
      color: var(--accent-copper);
      font-size: 1.8rem;
    }

    .nav-cta {
      background-color: var(--accent-copper);
      color: white;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: background-color 0.25s;
      text-decoration: none;
      display: inline-block;
      font-size: 0.95rem;
    }
    .nav-cta:hover {
      background-color: #A8652A;
    }

    .pill-nav {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }
    .pill-link {
      padding: 8px 18px;
      border-radius: 40px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-secondary);
      transition: all 0.2s;
      text-decoration: none;
      background: transparent;
      border: 1px solid transparent;
    }
    .pill-link:hover {
      color: var(--accent-copper);
      background: rgba(201,126,58,0.06);
    }
    .pill-link.active {
      color: var(--accent-copper);
      font-weight: 600;
      border-bottom: 2px solid var(--accent-copper);
      border-radius: 0;
      background: transparent;
      padding-bottom: 6px;
    }

    /* 按钮系统 */
    .btn-primary {
      background: var(--accent-copper);
      color: white;
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      display: inline-block;
      text-decoration: none;
      transition: all 0.25s;
      border: none;
      cursor: pointer;
      font-size: 1rem;
      box-shadow: 0 4px 10px rgba(201,126,58,0.2);
    }
    .btn-primary:hover {
      background: #A8652A;
      box-shadow: 0 6px 14px rgba(201,126,58,0.3);
      transform: translateY(-1px);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary-deep);
      color: var(--primary-deep);
      padding: 12px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      transition: all 0.25s;
      display: inline-block;
    }
    .btn-outline:hover {
      background: var(--primary-deep);
      color: white;
    }

    /* 卡片样式 */
    .capability-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
      text-decoration: none;
      color: inherit;
      display: flex;
      flex-direction: column;
    }
    .capability-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-img {
      border-radius: var(--radius-card);
      border: 1px solid rgba(0,0,0,0.05);
      object-fit: cover;
      width: 100%;
      height: auto;
    }

    .data-highlight {
      color: var(--success-green);
      font-size: 2.8rem;
      font-weight: 700;
      line-height: 1.2;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 20px 0;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 600;
      font-size: 1.1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--primary-deep);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s;
      color: var(--text-secondary);
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding-top: 16px;
    }

    footer {
      background: var(--primary-deep);
      color: rgba(255,255,255,0.85);
    }
    .footer-cta-banner {
      background: rgba(0,0,0,0.2);
      border-radius: var(--radius-card);
      padding: 48px;
      text-align: center;
    }