/* roulang page: index */
:root {
      --primary: #10B981;
      --primary-dark: #059669;
      --primary-light: #D1FAE5;
      --accent-cyan: #06B6D4;
      --dark-surface: #0F172A;
      --dark-card: #1E293B;
      --bg-light: #F8FAFC;
      --bg-card: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --border-subtle: #E2E8F0;
      --border-dark: #334155;
      --shadow-sm: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 14px 28px -4px rgba(16, 185, 129, 0.16);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --transition: all 0.28s ease-in-out;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; object-fit: cover; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }

    /* 招投标公告顶栏 */
    .top-tender-bar {
      background-color: #0B132B;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-tender-bar .notice-chip {
      background: rgba(16, 185, 129, 0.15);
      color: var(--primary);
      border: 1px solid var(--primary);
      padding: 2px 10px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      margin-right: 12px;
    }
    .top-tender-bar a:hover { color: #FFFFFF; }

    /* 主导航 */
    .main-nav-sticky {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .main-nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: var(--dark-surface);
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      color: var(--primary);
      font-size: 26px;
    }
    .brand-logo span {
      background: linear-gradient(135deg, #10B981, #06B6D4);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary-dark);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }
    .btn-theme {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    }
    .btn-theme:hover {
      background: linear-gradient(135deg, #059669, #047857);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(16, 185, 129, 0.35);
    }
    .btn-outline {
      border: 1px solid var(--border-subtle);
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #F0FDF4;
    }

    /* 移动端菜单切换按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 板块通用标准 */
    .site-section {
      padding: 85px 0;
      position: relative;
    }
    .site-section-dark {
      background-color: var(--dark-surface);
      color: #FFFFFF;
    }
    .site-section-alt {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-head.text-center {
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .badge-sub {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(16, 185, 129, 0.1);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
    }
    .site-section-dark .badge-sub {
      background: rgba(6, 182, 212, 0.15);
      color: var(--accent-cyan);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
      color: inherit;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .site-section-dark .section-desc {
      color: var(--text-light);
    }

    /* 卡片形态 */
    .card-modern {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
      padding: 30px;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .card-modern:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(16, 185, 129, 0.3);
    }

    /* 1. Hero 本地感首屏 */
    .hero-banner {
      position: relative;
      background: url('/assets/images/b209d6b05991f217.webp') center center/cover no-repeat;
      padding: 90px 0 110px;
      color: #FFFFFF;
      overflow: hidden;
    }
    .hero-banner::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(90deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.82) 60%, rgba(15, 23, 42, 0.65) 100%);
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-location-bar {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      padding: 6px 16px;
      border-radius: 40px;
      margin-bottom: 24px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      font-size: 13px;
    }
    .hero-location-bar span.tag-loc {
      background: var(--primary);
      color: #fff;
      padding: 2px 8px;
      border-radius: 20px;
      font-weight: 600;
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #FFFFFF;
    }
    .hero-lead {
      font-size: 16px;
      color: #E2E8F0;
      line-height: 1.8;
      margin-bottom: 34px;
      max-width: 680px;
    }
    .hero-stats-row {
      display: flex;
      gap: 28px;
      margin-top: 40px;
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .hero-stat-item h4 {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent-cyan);
      margin: 0;
    }
    .hero-stat-item p {
      font-size: 13px;
      color: #94A3B8;
      margin: 0;
    }

    /* 首屏右侧区域网格与附近场馆卡 */
    .hero-sidebar-card {
      background: rgba(30, 41, 59, 0.85);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 26px;
      color: #FFFFFF;
    }
    .hero-sidebar-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nearby-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .nearby-item:last-child { border-bottom: none; }
    .nearby-info h5 {
      font-size: 15px;
      margin: 0 0 4px 0;
      color: #F8FAFC;
    }
    .nearby-info p {
      font-size: 12px;
      color: #94A3B8;
      margin: 0;
    }
    .nearby-status {
      text-align: right;
    }
    .status-badge {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(16, 185, 129, 0.2);
      color: #34D399;
      font-weight: 600;
    }

    /* 2. 品牌与底座技术区 */
    .tech-specs-box {
      background: var(--bg-light);
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      margin-top: 20px;
      font-size: 14px;
      color: var(--text-main);
    }
    .tech-specs-box strong { color: var(--dark-surface); }

    /* 3. 核心优势六矩阵 */
    .grid-icon-circle {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      background: rgba(16, 185, 129, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
      transition: var(--transition);
    }
    .card-modern:hover .grid-icon-circle {
      background: var(--primary);
      color: #FFFFFF;
    }

    /* 4. 热门智能化硬件与系统区 */
    .product-spec-table {
      width: 100%;
      margin: 16px 0;
      font-size: 13px;
      border-collapse: collapse;
    }
    .product-spec-table td {
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-subtle);
    }
    .product-spec-table td:first-child {
      color: var(--text-muted);
      width: 38%;
    }
    .product-spec-table td:last-child {
      font-weight: 600;
      text-align: right;
    }

    /* 5. 深色沉浸式案例理念区 */
    .bim-graphic-wrap {
      border: 1px solid rgba(6, 182, 212, 0.3);
      border-radius: var(--radius-md);
      position: relative;
      overflow: hidden;
      box-shadow: 0 0 30px rgba(6, 182, 212, 0.12);
    }
    .bim-tag {
      position: absolute;
      bottom: 16px;
      left: 16px;
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid var(--accent-cyan);
      color: var(--accent-cyan);
      padding: 4px 12px;
      font-size: 12px;
      border-radius: 20px;
    }

    /* 6. 场景演示：管理端 vs 运动端 */
    .scene-pill-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-subtle);
      margin-bottom: 24px;
    }
    .scene-img-side {
      height: 240px;
    }
    .scene-body {
      padding: 28px;
    }

    /* 7. 能效大数字条 */
    .metric-bar {
      background: linear-gradient(135deg, #065F46, #0F172A);
      color: #fff;
      padding: 50px 0;
    }
    .metric-item {
      text-align: center;
      padding: 10px 15px;
      border-right: 1px solid rgba(255, 255, 255, 0.12);
    }
    .metric-item:last-child { border-right: none; }
    .metric-value {
      font-size: 42px;
      font-weight: 900;
      color: #34D399;
      line-height: 1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 14px;
      color: #CBD5E1;
      margin: 0;
    }

    /* 8. 中标公示与资质背书区 */
    .bid-table {
      width: 100%;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-subtle);
    }
    .bid-table th {
      background: #F1F5F9;
      color: var(--text-main);
      padding: 14px 18px;
      font-size: 14px;
      font-weight: 700;
      text-align: left;
    }
    .bid-table td {
      padding: 14px 18px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-subtle);
      color: var(--text-main);
    }
    .bid-table tr:last-child td { border-bottom: none; }
    .badge-status-done {
      background: #ECFDF5;
      color: #059669;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }

    /* 9. 业主评价区 */
    .quote-box {
      font-style: italic;
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 14px;
      line-height: 1.6;
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: auto;
    }
    .avatar-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #475569;
      font-weight: bold;
    }

    /* 10. 动态资讯卡 */
    .news-card-inner {
      padding: 24px;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      background: #FFFFFF;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .news-date {
      font-size: 13px;
      color: var(--primary-dark);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-card-inner h4 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .news-card-inner p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    /* 11. FAQ 手风琴 */
    .accordion-item {
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .accordion-title {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
      user-select: none;
    }
    .accordion-title:hover {
      background: #F8FAFC;
      color: var(--primary-dark);
    }
    .accordion-content {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }
    .accordion-item.is-active .accordion-content {
      display: block;
    }
    .accordion-item.is-active .accordion-title i {
      transform: rotate(180deg);
      color: var(--primary);
    }

    /* 12. 保障图标条 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guarantee-card {
      text-align: center;
      padding: 24px 16px;
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
    }
    .guarantee-card i {
      font-size: 32px;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .guarantee-card h5 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .guarantee-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 13. 终极转化区 */
    .cta-box-lead {
      background: linear-gradient(135deg, var(--dark-surface), #1e293b);
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .cta-box-lead h3 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .cta-form-row {
      max-width: 620px;
      margin: 30px auto 0;
      display: flex;
      gap: 12px;
    }
    .cta-form-row input {
      flex: 1;
      height: 48px;
      padding: 0 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-dark);
      background: #0B132B;
      color: #fff;
      font-size: 14px;
    }
    .cta-form-row input:focus {
      outline: none;
      border-color: var(--primary);
    }

    /* 底部悬浮条 */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 12px 0;
      z-index: 990;
      color: #FFFFFF;
    }
    .floating-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .floating-tip {
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 综合页脚 */
    .site-footer {
      background: #090D16;
      color: #94A3B8;
      padding: 70px 0 100px; /* 底部预留悬浮条高度 */
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h5::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--primary);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      margin-top: 50px;
      text-align: center;
      font-size: 13px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-title { font-size: 34px; }
      .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .nav-links.is-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 16px;
      }
      .mobile-menu-toggle { display: block; }
      .hero-title { font-size: 28px; }
      .hero-stats-row { flex-wrap: wrap; gap: 16px; }
      .cta-form-row { flex-direction: column; }
      .guarantee-grid { grid-template-columns: 1fr; }
      .metric-item { border-right: none; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding: 18px 0; }
      .floating-tip { display: none; }
      .floating-bar-inner { justify-content: center; width: 100%; }
    }