/* roulang page: index */
:root {
      --primary: #1E3A8A;
      --primary-hover: #172554;
      --accent: #0D9488;
      --accent-hover: #0f766e;
      --accent-light: #ccfbf1;
      --cta: #EA580C;
      --cta-hover: #c2410c;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-darker: #0B1120;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border: #E2E8F0;
      --border-dark: #1e293b;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      font-size: 1rem;
      line-height: 1.65;
      color: var(--text-body);
      background-color: var(--bg-page);
      letter-spacing: -0.01em;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

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

    /* 顶部双行导航 */
    .utility-bar {
      background-color: var(--bg-darker);
      color: #94a3b8;
      font-size: 0.8125rem;
      height: 36px;
      line-height: 36px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .utility-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .utility-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .utility-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #38bdf8;
    }
    .utility-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #38bdf8;
    }
    .utility-right a:hover {
      color: #f1f5f9;
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      transition: all 0.3s ease;
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .brand-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(30, 58, 138, 0.25);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #fff;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
    }
    .btn-cta {
      background-color: var(--cta);
      color: #fff;
      box-shadow: 0 4px 14px rgba(234, 88, 12, 0.25);
    }
    .btn-cta:hover {
      background-color: var(--cta-hover);
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--border);
      background-color: #fff;
      color: var(--text-body);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .mobile-drawer {
      display: none;
    }

    /* 板块通用 */
    .section-padding {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px auto;
    }
    .section-header.text-left {
      text-align: left;
      margin: 0 0 36px 0;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--accent);
      background-color: var(--accent-light);
      padding: 4px 12px;
      border-radius: 30px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块1：Hero（5:7 错位） */
    .hero-section {
      background: linear-gradient(180deg, #F8FAFC 0%, #EEF2F6 100%);
      padding: 70px 0 90px 0;
      overflow: hidden;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      align-items: center;
      gap: 48px;
    }
    .hero-content h1 {
      font-size: 2.65rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      letter-spacing: -0.025em;
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      color: var(--primary);
    }
    .hero-intro {
      font-size: 1.0625rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
    }
    .hero-kpi-item h4 {
      font-size: 1.625rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.2;
    }
    .hero-kpi-item p {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .hero-visual {
      position: relative;
    }
    .hero-img-box {
      background: #ffffff;
      padding: 10px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(226, 232, 240, 0.8);
      position: relative;
      z-index: 2;
    }
    .hero-img-box img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .hero-badge-float {
      position: absolute;
      bottom: -20px;
      left: -20px;
      background: #ffffff;
      padding: 16px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
      z-index: 3;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .hero-badge-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #ecfdf5;
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    /* 板块2：痛点诊断区 */
    .pain-points-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: #fff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #fca5a5;
    }
    .pain-tag {
      font-size: 0.75rem;
      font-weight: 600;
      color: #dc2626;
      background: #fef2f2;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 14px;
      align-self: flex-start;
    }
    .pain-card h3 {
      font-size: 1.125rem;
      color: var(--text-main);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .pain-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .pain-loss {
      border-top: 1px dashed #fecaca;
      padding-top: 12px;
      font-size: 0.8125rem;
      color: #991b1b;
      font-weight: 500;
    }

    /* 板块3：系统架构矩阵（图文混排） */
    .matrix-section {
      background-color: #ffffff;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .matrix-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .matrix-image-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
    }
    .matrix-image-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .matrix-specs {
      margin-top: 24px;
      background: #f1f5f9;
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-size: 0.875rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块4：核心产品优势矩阵（6卡片） */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
    }
    .feature-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .feature-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .feature-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }
    .feature-tech-tag {
      font-size: 0.75rem;
      color: var(--accent);
      background: var(--accent-light);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .feature-card h3 {
      font-size: 1.1875rem;
      color: var(--text-main);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .feature-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块5：行业应用场景方案 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }
    .scenario-img-box img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .scenario-body {
      padding: 28px 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .scenario-body h3 {
      font-size: 1.25rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .scenario-body p {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .scenario-list {
      list-style: none;
      margin-top: auto;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }
    .scenario-list li {
      font-size: 0.8125rem;
      color: var(--text-body);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .scenario-list li::before {
      content: "✓";
      color: var(--accent);
      font-weight: bold;
    }

    /* 板块6：深色模式全周期管治区 */
    .lifecycle-dark {
      background-color: var(--bg-dark);
      color: #f8fafc;
      padding: 85px 0;
    }
    .lifecycle-dark .section-title {
      color: #ffffff;
    }
    .lifecycle-dark .section-desc {
      color: #94a3b8;
    }
    .lifecycle-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      margin-top: 40px;
    }
    .flow-step-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      position: relative;
      transition: all 0.3s;
    }
    .flow-step-card:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: #38bdf8;
    }
    .flow-num {
      font-size: 1.75rem;
      font-weight: 800;
      color: #38bdf8;
      margin-bottom: 14px;
      display: inline-block;
    }
    .flow-step-card h4 {
      font-size: 1.125rem;
      color: #ffffff;
      margin-bottom: 10px;
      font-weight: 600;
    }
    .flow-step-card p {
      font-size: 0.875rem;
      color: #94a3b8;
      line-height: 1.6;
    }

    /* 板块7：落地标杆企业案例 */
    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 36px 32px;
      box-shadow: var(--shadow-sm);
    }
    .case-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border);
      padding-bottom: 16px;
    }
    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .case-badge {
      font-size: 0.75rem;
      padding: 4px 10px;
      background: #f1f5f9;
      border-radius: 4px;
      color: var(--text-muted);
    }
    .case-metrics-bar {
      display: flex;
      gap: 24px;
      margin: 20px 0;
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-sm);
    }
    .case-metric-val {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
    }
    .case-metric-lbl {
      font-size: 0.75rem;
      color: var(--text-muted);
    }
    .case-quote {
      font-size: 0.875rem;
      color: var(--text-body);
      font-style: italic;
      line-height: 1.65;
      position: relative;
      padding-left: 18px;
      border-left: 3px solid var(--accent);
    }

    /* 板块8：关键经营成果统计数据条 */
    .stats-bar-section {
      background: linear-gradient(135deg, var(--primary) 0%, #0f2b6a 100%);
      color: #ffffff;
      padding: 60px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-item h3 {
      font-size: 2.75rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .stat-item h3 span {
      font-size: 1.5rem;
      color: #ffffff;
    }
    .stat-item p {
      font-size: 0.9375rem;
      color: #cbd5e1;
      font-weight: 500;
    }

    /* 板块9：行业客户评价见解 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-content {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }
    .testimonial-content::before {
      content: "“";
      font-size: 3rem;
      color: #cbd5e1;
      position: absolute;
      top: -20px;
      left: -10px;
      opacity: 0.4;
      line-height: 1;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border);
      padding-top: 18px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      color: var(--primary);
    }
    .author-info h4 {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .author-info p {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* 板块10：招商数字化内嵌动态 */
    .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);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .news-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }
    .news-date {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: block;
    }
    .news-card h3 {
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块11：常见疑问FAQ手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.active {
      border-color: var(--primary);
    }
    .faq-header {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      font-weight: 600;
      font-size: 1.0625rem;
      color: var(--text-main);
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      transition: transform 0.25s ease;
      color: var(--text-muted);
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }
    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f8fafc;
      color: var(--text-body);
      font-size: 0.9375rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-body {
      max-height: 200px;
      padding: 16px 24px 24px 24px;
      border-top: 1px solid var(--border);
    }

    /* 板块12：底部行动预约留资卡片 */
    .cta-card-section {
      padding-bottom: 90px;
    }
    .cta-box {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #ffffff;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 5fr 6fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h2 {
      font-size: 2.125rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #ffffff;
    }
    .cta-info p {
      font-size: 1rem;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-md);
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-body);
    }
    .form-control {
      width: 100%;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 0 12px;
      font-size: 0.9375rem;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: var(--primary);
    }
    .form-note {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 10px;
      text-align: center;
    }

    /* 全局页脚 */
    .site-footer {
      background-color: var(--bg-darker);
      color: #94a3b8;
      padding: 70px 0 30px 0;
      border-top: 1px solid var(--border-dark);
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 4fr 3fr 5fr;
      gap: 48px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-nav h4, .footer-contact h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #38bdf8;
    }
    .footer-contact-list {
      list-style: none;
      line-height: 1.8;
    }
    .footer-contact-list li {
      margin-bottom: 8px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .matrix-split {
        grid-template-columns: 1fr;
      }
      .features-grid, .scenario-grid, .pain-points-grid, .lifecycle-flow, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-box {
        grid-template-columns: 1fr;
        padding: 40px 30px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .utility-bar {
        display: none;
      }
      .nav-menu, .nav-actions .btn {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .features-grid, .scenario-grid, .pain-points-grid, .lifecycle-flow, .testimonial-grid, .news-grid, .stats-grid, .cases-grid {
        grid-template-columns: 1fr;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      /* 移动端菜单抽屉 */
      .mobile-drawer {
        display: block;
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        z-index: 99;
        border-bottom: 1px solid var(--border);
      }
      .mobile-drawer.open {
        max-height: 480px;
      }
      .mobile-drawer ul {
        list-style: none;
        padding: 20px;
      }
      .mobile-drawer li {
        margin-bottom: 16px;
      }
      .mobile-drawer a {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-main);
        display: block;
      }
    }