/* roulang page: index */
:root {
      --primary-color: #10B981;
      --primary-dark: #059669;
      --secondary-color: #0F172A;
      --accent-cyan: #06B6D4;
      --accent-orange: #F97316;
      --bg-light: #F8FAFC;
      --bg-dark: #0B0F17;
      --surface-white: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-pill: 9999px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 30px -5px rgba(0, 0, 0, 0.07);
      --shadow-glow: 0 0 25px rgba(16, 185, 129, 0.35);
      --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      overflow-x: hidden;
      font-size: 15px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* 桌面端 App Shell 侧边栏 */
    .app-shell-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 260px;
      height: 100vh;
      background-color: #0F172A;
      color: #F8FAFC;
      z-index: 1030;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 1.75rem 1.25rem;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      overflow-y: auto;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .brand-icon-box {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-cyan));
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.3rem;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    }

    .brand-text-box h2 {
      font-size: 1.15rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin: 0;
      color: #FFFFFF;
    }

    .brand-text-box span {
      font-size: 0.72rem;
      color: #94A3B8;
      display: block;
    }

    .shell-nav-menu {
      margin: 1.75rem 0;
      display: flex;
      flex-direction: column;
      gap: 0.4rem;
    }

    .shell-nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0.75rem 1rem;
      border-radius: var(--radius-sm);
      color: #94A3B8;
      font-size: 0.92rem;
      font-weight: 500;
    }

    .shell-nav-link i {
      font-size: 1.05rem;
      width: 20px;
      text-align: center;
    }

    .shell-nav-link:hover, .shell-nav-link.active {
      background-color: rgba(16, 185, 129, 0.15);
      color: var(--primary-color);
    }

    .shell-footer-box {
      padding-top: 1.25rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .btn-shell-cta {
      display: block;
      width: 100%;
      text-align: center;
      background: var(--primary-color);
      color: #fff !important;
      font-weight: 600;
      padding: 0.75rem 1rem;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
      font-size: 0.9rem;
    }

    .btn-shell-cta:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }

    /* 移动端顶部导航 */
    .mobile-top-bar {
      display: none;
      position: sticky;
      top: 0;
      left: 0;
      right: 0;
      height: 64px;
      background: #0F172A;
      z-index: 1020;
      padding: 0 1.25rem;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .mobile-offcanvas-menu {
      background-color: #0F172A;
      color: #fff;
    }

    /* 主内容区偏移 */
    .app-main-content {
      margin-left: 260px;
      min-height: 100vh;
      background-color: var(--bg-light);
    }

    /* 斜切色块 Hero 仪表盘样式 */
    .hero-skew-section {
      position: relative;
      background: linear-gradient(135deg, #09121d 0%, #0F172A 70%, #064E3B 100%);
      padding: 5rem 2.5rem 6.5rem;
      color: #FFFFFF;
      overflow: hidden;
      clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
    }

    .hero-skew-bg {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/89b723401de23b72.png');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      mix-blend-mode: overlay;
      pointer-events: none;
    }

    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(16, 185, 129, 0.2);
      border: 1px solid rgba(16, 185, 129, 0.4);
      color: #34D399;
      padding: 0.35rem 1rem;
      border-radius: var(--radius-pill);
      font-size: 0.85rem;
      font-weight: 500;
      margin-bottom: 1.5rem;
    }

    .hero-skew-section h1 {
      font-size: 2.65rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.25rem;
      letter-spacing: -0.5px;
    }

    .hero-lead-text {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.8;
      max-width: 680px;
      margin-bottom: 2rem;
    }

    .hero-dashboard-kpi {
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    }

    .kpi-stat-item {
      padding: 1rem;
      border-right: 1px solid rgba(255, 255, 255, 0.1);
    }

    .kpi-stat-item:last-child {
      border-right: none;
    }

    .kpi-num {
      font-size: 1.85rem;
      font-weight: 700;
      color: #10B981;
      display: block;
      line-height: 1.1;
    }

    .kpi-label {
      font-size: 0.8rem;
      color: #94A3B8;
      margin-top: 0.35rem;
      display: block;
    }

    /* 通用板块样式与排版 */
    .app-section {
      padding: 5rem 2.5rem;
      position: relative;
    }

    .section-light {
      background-color: #FFFFFF;
    }

    .section-gray {
      background-color: #F8FAFC;
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: #F8FAFC;
    }

    .section-header {
      margin-bottom: 3rem;
      max-width: 720px;
    }

    .section-pill-title {
      font-size: 0.82rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-color);
      margin-bottom: 0.5rem;
      display: block;
    }

    .section-header h2 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 0.85rem;
      color: inherit;
    }

    .section-header p {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .section-dark .section-header p {
      color: #94A3B8;
    }

    /* 卡片体系 */
    .custom-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.85rem;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(16, 185, 129, 0.3);
    }

    .card-icon-round {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.25rem;
    }

    .icon-emerald {
      background: rgba(16, 185, 129, 0.12);
      color: var(--primary-color);
    }

    .icon-cyan {
      background: rgba(6, 182, 212, 0.12);
      color: var(--accent-cyan);
    }

    .icon-orange {
      background: rgba(249, 115, 22, 0.12);
      color: var(--accent-orange);
    }

    .icon-slate {
      background: rgba(15, 23, 42, 0.08);
      color: #334155;
    }

    .dark-card {
      background: #111827;
      border: 1px solid #1F2937;
      border-radius: var(--radius-md);
      padding: 2rem;
      height: 100%;
      transition: all 0.3s ease;
    }

    .dark-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-4px);
    }

    /* 按钮组 */
    .btn-brand-primary {
      background-color: var(--primary-color);
      color: #FFFFFF !important;
      font-weight: 600;
      padding: 0.85rem 2rem;
      border-radius: var(--radius-pill);
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
    }

    .btn-brand-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
    }

    .btn-brand-secondary {
      background-color: rgba(255, 255, 255, 0.12);
      color: #FFFFFF !important;
      font-weight: 600;
      padding: 0.85rem 1.85rem;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 255, 255, 0.2);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      backdrop-filter: blur(8px);
    }

    .btn-brand-secondary:hover {
      background-color: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
    }

    /* 步骤时间轴 */
    .step-badge {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1.15rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.25rem;
    }

    .step-connector-card {
      position: relative;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      height: 100%;
    }

    /* 成果指标高亮栏 */
    .ribbon-metrics-dark {
      background: linear-gradient(90deg, #064E3B 0%, #0F172A 100%);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .metric-value-huge {
      font-size: 2.5rem;
      font-weight: 800;
      color: #34D399;
      line-height: 1.1;
      margin-bottom: 0.4rem;
    }

    /* 用户评价卡片 */
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }

    .review-metrics-tag {
      display: inline-block;
      font-size: 0.78rem;
      background: #ECFDF5;
      color: var(--primary-dark);
      padding: 0.25rem 0.65rem;
      border-radius: 6px;
      font-weight: 600;
      margin-bottom: 0.75rem;
    }

    /* 资讯卡片 */
    .news-card-thumb {
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 1rem;
      height: 190px;
    }

    .news-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .news-card-thumb:hover img {
      transform: scale(1.05);
    }

    /* 系统要求与安全审计表 */
    .spec-table-item {
      padding: 1rem 0;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .spec-table-item:last-child {
      border-bottom: none;
    }

    /* 统一页脚 */
    .app-footer {
      background-color: #0B0F17;
      color: #94A3B8;
      padding: 4.5rem 2.5rem 2.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.88rem;
    }

    .footer-title {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 1.25rem;
    }

    .footer-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-list li {
      margin-bottom: 0.65rem;
    }

    .footer-list a:hover {
      color: var(--primary-color);
    }

    .disclaimer-text {
      font-size: 0.8rem;
      color: #64748B;
      line-height: 1.6;
      margin-top: 1.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    /* 移动端与自适应断点 */
    @media (max-width: 991.98px) {
      .app-shell-sidebar {
        display: none;
      }
      .mobile-top-bar {
        display: flex;
      }
      .app-main-content {
        margin-left: 0;
      }
      .app-section {
        padding: 3.5rem 1.25rem;
      }
      .hero-skew-section {
        padding: 3.5rem 1.25rem 5rem;
        clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
      }
      .hero-skew-section h1 {
        font-size: 2rem;
      }
      .kpi-stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 0.75rem 0;
      }
      .kpi-stat-item:last-child {
        border-bottom: none;
      }
    }