/* roulang page: index */
:root {
      --primary-dark: #0F2922;
      --primary-green: #1A3B32;
      --accent-neon: #2EE59D;
      --accent-amber: #FF7A00;
      --accent-hover: #26c787;
      --bg-light: #F8F9FA;
      --bg-white: #FFFFFF;
      --bg-dark: #0D1117;
      --bg-dark-card: #161B22;
      --text-main: #2D3748;
      --text-muted: #718096;
      --text-title: #0A0D12;
      --border-light: #E2E8F0;
      --border-dark: #30363D;
      --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.03);
      --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.09);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1200px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      padding-bottom: 70px; /* 为底部常驻条留出空间 */
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

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

    button, input, select, textarea {
      font-family: inherit;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 徽章与标签 */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 20px;
      background: rgba(46, 229, 157, 0.12);
      color: var(--primary-green);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .badge-dark {
      background: rgba(46, 229, 157, 0.15);
      color: var(--accent-neon);
      border: 1px solid rgba(46, 229, 157, 0.3);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: none;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--accent-neon);
      color: var(--primary-dark);
      box-shadow: 0 4px 14px rgba(46, 229, 157, 0.35);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(46, 229, 157, 0.45);
    }
    .btn-outline {
      background-color: transparent;
      color: #ffffff;
      border: 1.5px solid rgba(255, 255, 255, 0.4);
    }
    .btn-outline:hover {
      border-color: var(--accent-neon);
      color: var(--accent-neon);
      background: rgba(255, 255, 255, 0.05);
    }
    .btn-dark {
      background-color: var(--primary-dark);
      color: #ffffff;
    }
    .btn-dark:hover {
      background-color: var(--primary-green);
      transform: translateY(-2px);
    }

    /* 标题排版 */
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-title);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }
    .top-bar {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.8);
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-info {
      display: flex;
      gap: 20px;
    }
    .main-nav {
      padding: 14px 0;
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-brand {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .nav-brand-icon {
      width: 34px;
      height: 34px;
      background: var(--primary-green);
      color: var(--accent-neon);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
    }
    .nav-links a:hover {
      color: var(--primary-green);
      font-weight: 600;
    }

    /* 板块通用内边距 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--bg-white);
    }
    .section-gray {
      background-color: var(--bg-light);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #ffffff;
    }

    /* 1. Hero 板块（本地感/区域协同首屏） */
    .hero-section {
      background: linear-gradient(135deg, rgba(15, 41, 34, 0.94), rgba(26, 59, 50, 0.88)), url('/assets/images/b7a3002829042ea1.png') center/cover no-repeat;
      color: #ffffff;
      padding: 100px 0 110px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-content h1 span {
      color: var(--accent-neon);
    }
    .hero-desc {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.85);
      line-height: 1.8;
      margin-bottom: 34px;
      max-width: 620px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 36px;
      flex-wrap: wrap;
    }
    .hero-local-panel {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 24px;
      backdrop-filter: blur(12px);
    }
    .hero-local-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--accent-neon);
    }
    .hero-node-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 18px;
    }
    .hero-node-item {
      background: rgba(0, 0, 0, 0.25);
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      border-left: 3px solid var(--accent-neon);
    }
    .hero-node-item strong {
      display: block;
      color: #fff;
      font-size: 14px;
      margin-bottom: 2px;
    }

    /* 2. 问题陈述板块 */
    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .problem-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      border-top: 4px solid #E53E3E;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .problem-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .problem-icon {
      width: 44px;
      height: 44px;
      background: rgba(229, 62, 62, 0.1);
      color: #E53E3E;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 20px;
      margin-bottom: 18px;
    }
    .problem-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-title);
    }
    .problem-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 操作演示与功能亮点 (流程看板) */
    .demo-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .demo-steps {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .demo-step-item {
      background: var(--bg-white);
      padding: 22px 24px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary-green);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .demo-step-item.active, .demo-step-item:hover {
      border-left-color: var(--accent-neon);
      transform: translateX(6px);
      box-shadow: var(--shadow-md);
    }
    .demo-step-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .demo-step-title span {
      background: var(--primary-green);
      color: var(--accent-neon);
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
    }
    .demo-step-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .demo-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-light);
    }
    .demo-media img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 4. 结果预览板块（数据与量化指标） */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 10px;
    }
    .metric-card {
      background: var(--bg-white);
      padding: 30px 20px;
      border-radius: var(--radius-md);
      text-align: center;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }
    .metric-num {
      font-size: 40px;
      font-weight: 900;
      color: var(--primary-green);
      line-height: 1.1;
      margin-bottom: 8px;
      letter-spacing: -1px;
    }
    .metric-num span {
      font-size: 22px;
      color: var(--accent-amber);
    }
    .metric-label {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 5. 核心优势 2x3 网格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .advantage-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: var(--transition);
      position: relative;
    }
    .advantage-card:hover {
      border-color: var(--accent-neon);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .adv-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: rgba(26, 59, 50, 0.08);
      color: var(--primary-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 20px;
    }
    .advantage-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-title);
    }
    .advantage-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 6. 三大核心管理矩阵 (图文卡片) */
    .modules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .module-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .module-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .module-img {
      height: 200px;
      width: 100%;
      object-fit: cover;
    }
    .module-body {
      padding: 26px 22px;
    }
    .module-body h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .module-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .module-list {
      list-style: none;
      font-size: 13px;
      color: var(--primary-green);
      font-weight: 600;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .module-list li::before {
      content: "✓ ";
      color: var(--accent-neon);
      font-weight: 900;
    }

    /* 7. 深色概念区 (资产安全管控与GB/T标准) */
    .dark-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .dark-desc {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .dark-spec-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding-bottom: 16px;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .spec-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
      margin-bottom: 0;
    }
    .spec-badge {
      background: rgba(46, 229, 157, 0.15);
      color: var(--accent-neon);
      font-size: 12px;
      padding: 4px 8px;
      border-radius: 4px;
      white-space: nowrap;
      font-weight: 600;
    }
    .spec-text h4 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 4px;
    }
    .spec-text p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.5;
    }

    /* 8. 常见卡住点 / 异议拆解 */
    .accordion-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .accordion-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .accordion-item.active {
      border-color: var(--primary-green);
      box-shadow: var(--shadow-sm);
    }
    .accordion-header {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .accordion-icon {
      font-size: 18px;
      color: var(--primary-green);
      font-weight: 900;
      transition: transform 0.3s ease;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(45deg);
      color: var(--accent-amber);
    }
    .accordion-body {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }
    .accordion-item.active .accordion-body {
      display: block;
    }

    /* 9. 成功路径与典型应用场景 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .scenario-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent-amber);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .scenario-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .scenario-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }
    .scenario-stat {
      background: var(--bg-light);
      padding: 12px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      border-left: 3px solid var(--accent-neon);
    }

    /* 10. 对比矩阵：传统台账 vs 数字化系统 */
    .compare-table-wrapper {
      max-width: 960px;
      margin: 0 auto;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
      font-size: 14px;
    }
    .compare-table th {
      background: var(--primary-dark);
      color: #ffffff;
      font-weight: 700;
      font-size: 15px;
    }
    .compare-table th.col-system {
      background: var(--primary-green);
      color: var(--accent-neon);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table td.dim {
      font-weight: 700;
      color: var(--text-title);
      width: 22%;
    }
    .compare-table td.traditional {
      color: #A0AEC0;
      width: 39%;
      background: #FAFAFA;
    }
    .compare-table td.modern {
      color: var(--primary-dark);
      font-weight: 600;
      width: 39%;
      background: rgba(46, 229, 157, 0.04);
    }

    /* 11. 行业资讯与合规指南 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: var(--primary-green);
      transform: translateY(-3px);
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-green);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. 平台保障与合规认证条 */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      padding: 20px 0;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .guarantee-icon {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: rgba(46, 229, 157, 0.15);
      color: var(--primary-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 16px;
      flex-shrink: 0;
    }
    .guarantee-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-title);
    }
    .guarantee-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 13. 底部收口行动转化板块 (唯一转化表单) */
    .conversion-section {
      background: linear-gradient(135deg, var(--primary-dark), #14352B);
      color: #ffffff;
      padding: 90px 0;
    }
    .form-wrapper {
      max-width: 820px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 44px;
      backdrop-filter: blur(10px);
    }
    .form-title {
      text-align: center;
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #ffffff;
    }
    .form-desc {
      text-align: center;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 32px;
    }
    .lead-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: rgba(255, 255, 255, 0.9);
    }
    .form-control {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #ffffff;
      font-size: 14px;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--accent-neon);
      background: rgba(255, 255, 255, 0.15);
    }
    .form-control option {
      background: var(--primary-dark);
      color: #fff;
    }
    .form-msg {
      display: none;
      text-align: center;
      padding: 12px;
      margin-top: 16px;
      border-radius: var(--radius-sm);
      background: rgba(46, 229, 157, 0.2);
      color: var(--accent-neon);
      font-size: 14px;
    }

    /* 底部固定转化条 (浮动条) */
    .fixed-action-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 41, 34, 0.95);
      border-top: 1px solid rgba(46, 229, 157, 0.3);
      padding: 12px 0;
      z-index: 999;
      backdrop-filter: blur(8px);
      box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    }
    .fixed-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .fixed-bar-text {
      color: #ffffff;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .fixed-bar-text strong {
      color: var(--accent-neon);
      font-size: 15px;
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-dark);
      color: rgba(255, 255, 255, 0.6);
      padding: 60px 0 30px;
      font-size: 13px;
      border-top: 1px solid var(--border-dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand {
      font-size: 18px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-neon);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid, .dark-inner, .demo-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .advantages-grid, .problem-grid, .modules-grid, .scenarios-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar, .guarantee-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none; /* 移动端极简 */
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .advantages-grid, .problem-grid, .modules-grid, .scenarios-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .metrics-bar, .guarantee-bar {
        grid-template-columns: 1fr;
      }
      .lead-form {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .form-wrapper {
        padding: 24px 18px;
      }
      .fixed-bar-text {
        display: none;
      }
      .fixed-bar-inner {
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .compare-table th, .compare-table td {
        padding: 12px 10px;
        font-size: 13px;
      }
    }