/* roulang page: index */
:root {
      --primary: #0A5C36;
      --primary-hover: #0D7A48;
      --primary-deep: #062316;
      --accent: #FF6B00;
      --accent-hover: #FA541C;
      --bg-page: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-box: 16px;
      --radius-pill: 9999px;
      --shadow-card: 0 4px 20px -2px rgba(10, 92, 54, 0.08);
      --shadow-hover: 0 16px 32px -4px rgba(10, 92, 54, 0.16);
    }

    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    /* 现代玻璃拟态与交互细节 */
    .glass-nav {
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      background-color: rgba(255, 255, 255, 0.95);
    }

    .card-transition {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-transition:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(6, 35, 22, 0.92) 0%, rgba(10, 92, 54, 0.82) 100%),
                  url('/assets/images/69d9b04dea5e2e5f.png') center/cover no-repeat;
    }

    .dark-feature-bg {
      background: linear-gradient(180deg, #062316 0%, #0a3d24 100%);
    }

    .cta-btn-primary {
      background: linear-gradient(135deg, #FF6B00 0%, #FA541C 100%);
      transition: all 0.25s ease;
    }
    .cta-btn-primary:hover {
      background: linear-gradient(135deg, #FF7D1F 0%, #FF6026 100%);
      transform: scale(1.02);
      box-shadow: 0 8px 20px rgba(255, 107, 0, 0.3);
    }
    .cta-btn-primary:active {
      transform: scale(0.98);
    }

    .brand-btn-outline {
      border: 1.5px solid #0A5C36;
      color: #0A5C36;
      transition: all 0.25s ease;
    }
    .brand-btn-outline:hover {
      background-color: #0A5C36;
      color: #FFFFFF;
    }

    /* 移动端菜单抽屉过渡 */
    #mobileMenu {
      transition: max-height 0.3s ease-in-out, opacity 0.25s ease-in-out;
    }