/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-dark: #0A2540;
      --primary-hover: #184E77;
      --accent: #1E6091;
      --gold: #DDA15E;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --text-main: #1E293B;
      --text-body: #475569;
      --text-muted: #94A3B8;
      --border: #E2E8F0;
      --shadow-sm: 0 1px 3px rgba(15, 76, 129, 0.05), 0 10px 15px -3px rgba(15, 76, 129, 0.08);
      --shadow-lg: 0 20px 25px -5px rgba(15, 76, 129, 0.12), 0 8px 10px -6px rgba(15, 76, 129, 0.06);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --radius-full: 9999px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

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

    button, input, select, textarea {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部微型信息栏 */
    .topbar {
      background-color: #0b1a2c;
      color: #94A3B8;
      font-size: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 6px 0;
    }
    .topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #E2E8F0;
    }
    .topbar-badge span {
      display: inline-block;
      width: 6px;
      height: 6px;
      background-color: #10B981;
      border-radius: 50%;
    }

    /* 核心导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
    }
    .nav-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.2px;
    }
    .brand-mark {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(30, 96, 145, 0.25);
    }
    .btn-gold {
      background-color: var(--gold);
      color: #1E293B;
      font-weight: 700;
    }
    .btn-gold:hover {
      background-color: #cb9252;
      box-shadow: 0 4px 12px rgba(221, 161, 94, 0.3);
    }
    .btn-outline {
      border-color: var(--border);
      background-color: #FFFFFF;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      color: var(--text-main);
    }

    /* 板块通用体系 */
    .section {
      padding: 88px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #F1F5F9;
    }
    .section-header {
      margin-bottom: 52px;
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      background-color: rgba(15, 76, 129, 0.08);
      color: var(--primary);
      margin-bottom: 12px;
    }
    .section-dark .section-tag {
      background-color: rgba(221, 161, 94, 0.2);
      color: var(--gold);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.3px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 板块 */
    .hero-section {
      background: #0A2540;
      background-image: linear-gradient(135deg, rgba(10, 37, 64, 0.95) 0%, rgba(15, 76, 129, 0.9) 100%), url('/assets/images/d13b95a1875877a1.png');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 96px 0 108px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-content h1 span {
      color: var(--gold);
    }
    .hero-intro {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 32px;
      max-width: 640px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }
    .hero-trust-list {
      display: flex;
      align-items: center;
      gap: 24px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      font-size: 13px;
      color: #94A3B8;
    }
    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-trust-item strong {
      color: #FFFFFF;
      font-weight: 600;
    }

    /* faux 数据榜单卡片 */
    .hero-dashboard-mockup {
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
      backdrop-filter: blur(12px);
    }
    .mockup-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 20px;
    }
    .mockup-header-title {
      font-size: 15px;
      font-weight: 600;
      color: #F8FAFC;
    }
    .mockup-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: #10B981;
      background: rgba(16, 185, 129, 0.12);
      padding: 3px 8px;
      border-radius: var(--radius-full);
    }
    .mockup-grid-stats {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 20px;
    }
    .mockup-stat-box {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.06);
      padding: 14px;
      border-radius: var(--radius-sm);
    }
    .mockup-stat-label {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 4px;
    }
    .mockup-stat-val {
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }
    .mockup-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .mockup-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.03);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
    }
    .mockup-row-meta {
      display: flex;
      flex-direction: column;
    }
    .mockup-row-title {
      font-weight: 500;
      color: #F1F5F9;
    }
    .mockup-row-desc {
      font-size: 11px;
      color: #64748B;
    }
    .mockup-tag-ok {
      color: #38BDF8;
      font-size: 12px;
      font-weight: 600;
    }

    /* 2. 品牌与产品体系综述 */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .overview-visual {
      position: relative;
    }
    .overview-img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
      object-fit: cover;
      width: 100%;
      height: 420px;
    }
    .overview-float-tag {
      position: absolute;
      bottom: -20px;
      right: 20px;
      background: #FFFFFF;
      padding: 16px 22px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border-left: 4px solid var(--primary);
    }
    .overview-float-tag strong {
      display: block;
      color: var(--text-main);
      font-size: 14px;
    }
    .overview-float-tag span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .overview-badges-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 28px;
    }
    .overview-badge-card {
      background: var(--bg-page);
      border: 1px solid var(--border);
      padding: 16px;
      border-radius: var(--radius-md);
    }
    .overview-badge-card h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .overview-badge-card p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.5;
    }

    /* 3. 指标看板与核心优势 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #cbd5e1;
    }
    .feature-icon-bar {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      background-color: rgba(15, 76, 129, 0.07);
      color: var(--primary);
      border-radius: var(--radius-sm);
      margin-bottom: 18px;
      font-weight: 700;
      font-size: 18px;
    }
    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 4. 服务矩阵与热门方案 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      display: flex;
      flex-direction: column;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .matrix-card.featured {
      border: 2px solid var(--primary);
      position: relative;
    }
    .matrix-featured-label {
      background: var(--primary);
      color: #FFFFFF;
      font-size: 11px;
      text-transform: uppercase;
      padding: 4px 12px;
      position: absolute;
      top: 12px;
      right: 12px;
      border-radius: var(--radius-full);
      font-weight: 600;
    }
    .matrix-head {
      padding: 28px 24px 20px;
      border-bottom: 1px solid var(--border);
    }
    .matrix-head h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .matrix-head-sub {
      font-size: 13px;
      color: var(--text-muted);
    }
    .matrix-body {
      padding: 24px;
      flex-grow: 1;
    }
    .matrix-specs {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }
    .matrix-specs li {
      font-size: 13px;
      display: flex;
      align-items: baseline;
      gap: 8px;
      color: var(--text-body);
    }
    .matrix-specs li::before {
      content: "•";
      color: var(--accent);
      font-size: 16px;
      line-height: 1;
    }
    .matrix-foot {
      padding: 20px 24px;
      background: #F8FAFC;
      border-top: 1px solid var(--border);
    }

    /* 5. 深色理念与运营标杆区 */
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .philosophy-quote {
      font-size: 20px;
      line-height: 1.6;
      color: #F1F5F9;
      font-weight: 400;
      margin-bottom: 24px;
      border-left: 3px solid var(--gold);
      padding-left: 20px;
    }
    .philosophy-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .philosophy-points li h4 {
      font-size: 16px;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .philosophy-points li p {
      font-size: 14px;
      color: #94A3B8;
      line-height: 1.6;
    }
    .philosophy-img-wrap img {
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.1);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 6. 运营结果对比分析 */
    .comparison-table-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .comp-header {
      display: grid;
      grid-template-columns: 2fr 3fr 3fr;
      background: #F1F5F9;
      padding: 18px 24px;
      font-weight: 700;
      font-size: 15px;
      color: var(--text-main);
      border-bottom: 1px solid var(--border);
    }
    .comp-header .hl {
      color: var(--primary);
    }
    .comp-row {
      display: grid;
      grid-template-columns: 2fr 3fr 3fr;
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
      font-size: 14px;
      align-items: center;
    }
    .comp-row:last-child {
      border-bottom: none;
    }
    .comp-row:nth-child(even) {
      background-color: #FAFAFA;
    }
    .comp-dimension {
      font-weight: 600;
      color: var(--text-main);
    }
    .comp-trad {
      color: #64748B;
      padding-right: 16px;
    }
    .comp-our {
      color: var(--primary);
      font-weight: 600;
      padding-right: 16px;
    }

    /* 7. 用户故事与典型案例 */
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .story-card img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }
    .story-content {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .story-tag {
      font-size: 12px;
      color: var(--accent);
      background: #F0F7FF;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 12px;
      width: fit-content;
      font-weight: 600;
    }
    .story-content h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .story-content p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .story-metrics-strip {
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border);
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .story-strip-item span {
      display: block;
      font-size: 11px;
      color: var(--text-muted);
    }
    .story-strip-item strong {
      font-size: 16px;
      color: var(--primary);
      font-weight: 700;
    }

    /* 8. 关键数据统计看板条 */
    .stats-strip-section {
      background: #0E3A63;
      background-image: linear-gradient(90deg, #0A2540 0%, #0F4C81 100%);
      color: #FFFFFF;
      padding: 48px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stats-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-strip-box {
      padding: 12px 16px;
    }
    .stat-strip-num {
      font-size: 40px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 4px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      letter-spacing: -0.5px;
    }
    .stat-strip-num span {
      font-size: 20px;
      color: var(--gold);
      margin-left: 2px;
    }
    .stat-strip-title {
      font-size: 14px;
      color: #CBD5E1;
      font-weight: 500;
    }

    /* 9. 资产里程碑与演进历程 */
    .timeline {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px 0;
    }
    .timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: var(--border);
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 36px;
      width: 50%;
    }
    .timeline-item.left {
      left: 0;
      padding-right: 36px;
      text-align: right;
    }
    .timeline-item.right {
      left: 50%;
      padding-left: 36px;
      text-align: left;
    }
    .timeline-dot {
      position: absolute;
      top: 10px;
      width: 14px;
      height: 14px;
      background: var(--accent);
      border: 3px solid #FFFFFF;
      box-shadow: 0 0 0 2px var(--accent);
      border-radius: 50%;
      z-index: 2;
    }
    .timeline-item.left .timeline-dot {
      right: -7px;
    }
    .timeline-item.right .timeline-dot {
      left: -7px;
    }
    .timeline-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .timeline-phase {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .timeline-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .timeline-card p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 10. 业主真实评价反馈 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .review-stars {
      color: var(--gold);
      font-size: 16px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border);
    }
    .review-avatar-ph {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #E2E8F0;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }
    .review-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 资讯与行业观察 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-link:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* 12. 平台保障与风控机制 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .guarantee-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #F0FDF4;
      color: #16A34A;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 16px;
      font-size: 15px;
    }
    .guarantee-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .guarantee-item p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 13. FAQ 与资产测算收口 */
    .faq-cta-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-summary {
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      list-style: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon-arrow {
      transition: transform 0.25s ease;
      font-size: 12px;
      color: var(--text-muted);
    }
    details[open] .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    /* 转化表单 */
    .cta-form-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-lg);
    }
    .cta-form-card h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .cta-form-card p {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #FFFFFF;
      outline: none;
      transition: all 0.2s ease;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
    }
    .form-submit-btn {
      width: 100%;
      padding: 13px;
      font-size: 15px;
      margin-top: 8px;
    }
    .form-note {
      font-size: 12px;
      color: var(--text-muted);
      text-align: center;
      margin-top: 14px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0b1a2c;
      color: #94A3B8;
      padding: 72px 0 28px;
      font-size: 13px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-col-brand h3 {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-col-brand p {
      line-height: 1.7;
      margin-bottom: 18px;
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 2px;
    }
    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-contact-list strong {
      color: #CBD5E1;
    }
    .footer-bottom {
      padding-top: 28px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
    }
    .footer-bottom a:hover {
      color: #FFFFFF;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid,
      .overview-grid,
      .philosophy-grid,
      .faq-cta-container {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .features-grid,
      .matrix-grid,
      .reviews-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-strip-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline::before {
        left: 20px;
      }
      .timeline-item {
        width: 100%;
        padding-left: 50px !important;
        padding-right: 0 !important;
        text-align: left !important;
      }
      .timeline-item.right {
        left: 0;
      }
      .timeline-item.left .timeline-dot,
      .timeline-item.right .timeline-dot {
        left: 13px;
        right: auto;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 56px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .features-grid,
      .matrix-grid,
      .stories-grid,
      .reviews-grid,
      .news-grid,
      .guarantee-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .stats-strip-grid {
        grid-template-columns: 1fr;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        display: none;
        border-bottom: 1px solid var(--border);
        gap: 18px;
        z-index: 999;
      }
      .nav-menu.active {
        display: flex;
      }
      .mobile-toggle {
        display: block;
      }
      .comp-header, .comp-row {
        grid-template-columns: 1.2fr 2fr 2fr;
        padding: 12px 14px;
        font-size: 13px;
      }
    }