/* roulang page: index */
:root {
      --primary: #0E3A39;
      --primary-dark: #071C1B;
      --primary-light: #184e4d;
      --secondary: #C29B38;
      --secondary-hover: #ab8528;
      --accent: #D9534F;
      --bg-light: #F4F6F6;
      --bg-white: #FFFFFF;
      --text-main: #1D2A2A;
      --text-muted: #5A6B6B;
      --border-color: #E1E7E7;
      --card-radius: 8px;
      --shadow-sm: 0 4px 20px rgba(14, 58, 57, 0.05);
      --shadow-hover: 0 10px 30px rgba(14, 58, 57, 0.12);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部双行导航 */
    .header-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--bg-white);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .top-bar {
      background-color: var(--primary);
      color: #D3DFDF;
      font-size: 13px;
      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-meta-list {
      display: flex;
      gap: 20px;
      list-style: none;
    }

    .main-nav {
      padding: 14px 0;
      background: #FFFFFF;
    }

    .main-nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.3px;
    }

    .logo-icon-svg {
      width: 32px;
      height: 32px;
      background: var(--primary);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }

    .nav-links a {
      font-weight: 500;
      color: var(--text-main);
      font-size: 15px;
      transition: color 0.2s ease;
      position: relative;
    }

    .nav-links a:hover {
      color: var(--secondary);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--card-radius);
      font-size: 14px;
      font-weight: 600;
      min-height: 44px;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-gold {
      background-color: var(--secondary);
      color: #1A1810;
      border-color: var(--secondary);
    }

    .btn-gold:hover {
      background-color: var(--secondary-hover);
      border-color: var(--secondary-hover);
      color: #111;
    }

    .btn-outline-teal {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline-teal:hover {
      background-color: var(--primary);
      color: #FFFFFF;
    }

    .btn-outline-white {
      background-color: transparent;
      border-color: #FFFFFF;
      color: #FFFFFF;
    }

    .btn-outline-white:hover {
      background-color: #FFFFFF;
      color: var(--primary-dark);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary);
      cursor: pointer;
    }

    /* 通用Section */
    section {
      padding: 85px 0;
      position: relative;
    }

    .section-header {
      margin-bottom: 50px;
      text-align: center;
    }

    .section-header.left-aligned {
      text-align: left;
    }

    .badge-sub {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--secondary);
      text-transform: uppercase;
      margin-bottom: 12px;
      background: rgba(194, 155, 56, 0.12);
      padding: 4px 14px;
      border-radius: 20px;
    }

    .section-title {
      font-size: 32px;
      color: var(--primary);
      line-height: 1.35;
      margin-bottom: 18px;
      font-weight: 700;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto;
      line-height: 1.8;
    }

    .section-header.left-aligned .section-desc {
      margin-left: 0;
    }

    /* 板块 1: 首屏 Hero 架构 */
    .hero-section {
      background: linear-gradient(135deg, #071C1B 0%, #0E3A39 60%, #154544 100%);
      color: #FFFFFF;
      padding: 90px 0 100px;
      position: relative;
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0.12;
      background-image: url('/assets/images/6c6944d8ce659aff.webp');
      background-size: cover;
      background-position: center;
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-content h1 {
      font-size: 40px;
      line-height: 1.3;
      margin-bottom: 22px;
      font-weight: 800;
      color: #FFFFFF;
    }

    .hero-content h1 span {
      color: var(--secondary);
    }

    .hero-desc {
      font-size: 16px;
      color: #D3DFDF;
      margin-bottom: 35px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-kpi-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 25px;
    }

    .hero-kpi-item .kpi-num {
      font-size: 26px;
      font-weight: 700;
      color: var(--secondary);
    }

    .hero-kpi-item .kpi-lbl {
      font-size: 13px;
      color: #ADC2C1;
      margin-top: 4px;
    }

    .hero-visual-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--card-radius);
      padding: 16px;
      backdrop-filter: blur(8px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    }

    .hero-visual-card img {
      border-radius: 4px;
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .hero-card-status {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 14px;
      padding: 0 6px;
      font-size: 13px;
      color: #B2CDCC;
    }

    .status-badge-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: #52c41a;
      border-radius: 50%;
      margin-right: 6px;
    }

    /* 板块 2: 底层架构与可验证指标 */
    .arch-section {
      background-color: var(--bg-white);
    }

    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }

    .arch-img-box {
      position: relative;
    }

    .arch-img-box img {
      border-radius: var(--card-radius);
      box-shadow: var(--shadow-sm);
      width: 100%;
      height: 420px;
      object-fit: cover;
      border: 1px solid var(--border-color);
    }

    .arch-badge-panel {
      position: absolute;
      bottom: -20px;
      right: 20px;
      background: var(--primary);
      color: #FFFFFF;
      padding: 16px 24px;
      border-radius: var(--card-radius);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
      font-size: 13px;
    }

    .arch-badge-panel strong {
      color: var(--secondary);
      font-size: 18px;
      display: block;
    }

    .arch-content h2 {
      font-size: 30px;
      color: var(--primary);
      margin-bottom: 20px;
      line-height: 1.35;
    }

    .arch-metrics-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin: 25px 0 35px;
    }

    .arch-metric-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .metric-icon-square {
      width: 38px;
      height: 38px;
      flex-shrink: 0;
      background: rgba(14, 58, 57, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      font-weight: 700;
      font-size: 14px;
    }

    .arch-metric-item h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .arch-metric-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 3: 核心优势六宫格 */
    .features-section {
      background-color: var(--bg-light);
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 34px 28px;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(194, 155, 56, 0.4);
    }

    .feature-icon-bubble {
      width: 48px;
      height: 48px;
      background: rgba(14, 58, 57, 0.07);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      margin-bottom: 20px;
      font-size: 20px;
      font-weight: bold;
    }

    .feature-card h3 {
      font-size: 19px;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 4: 产品矩阵对比 */
    .products-section {
      background-color: var(--bg-white);
    }

    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }

    .product-box {
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 40px 30px;
      background: var(--bg-white);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

    .product-box.featured {
      border: 2px solid var(--secondary);
      background: linear-gradient(180deg, #FFFFFF 0%, #FAFAF7 100%);
      box-shadow: 0 12px 35px rgba(194, 155, 56, 0.15);
      transform: scale(1.02);
    }

    .featured-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--secondary);
      color: #1A1810;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 12px;
      text-transform: uppercase;
    }

    .product-box h3 {
      font-size: 21px;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .product-target {
      font-size: 13px;
      color: var(--secondary);
      font-weight: 600;
      margin-bottom: 18px;
    }

    .product-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 26px;
      min-height: 52px;
    }

    .product-checklist {
      list-style: none;
      margin-bottom: 35px;
      flex-grow: 1;
      border-top: 1px dashed var(--border-color);
      padding-top: 20px;
    }

    .product-checklist li {
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .product-checklist li::before {
      content: "✓";
      color: var(--secondary);
      font-weight: bold;
    }

    /* 板块 5: 深色案例与控费理念 */
    .case-dark-section {
      background-color: var(--primary-dark);
      color: #FFFFFF;
      padding: 95px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .case-dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .case-dark-content h2 {
      font-size: 32px;
      color: #FFFFFF;
      margin-bottom: 20px;
      line-height: 1.35;
    }

    .case-dark-content p {
      color: #D3DFDF;
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .case-highlights-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .case-hl-card {
      background: rgba(255, 255, 255, 0.04);
      border-left: 3px solid var(--secondary);
      padding: 16px 20px;
      border-radius: 0 var(--card-radius) var(--card-radius) 0;
    }

    .case-hl-card .num {
      font-size: 24px;
      font-weight: 700;
      color: var(--secondary);
    }

    .case-hl-card .label {
      font-size: 13px;
      color: #ADC2C1;
      margin-top: 4px;
    }

    .case-flow-preview {
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--card-radius);
      padding: 10px;
      background: rgba(0, 0, 0, 0.25);
    }

    .case-flow-preview img {
      border-radius: 4px;
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块 6: 落地场景演示 */
    .scenarios-section {
      background-color: var(--bg-white);
    }

    .scenario-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      margin-bottom: 70px;
    }

    .scenario-block:last-child {
      margin-bottom: 0;
    }

    .scenario-block.reverse {
      grid-template-columns: 1fr 1fr;
      direction: rtl;
    }

    .scenario-block.reverse > * {
      direction: ltr;
    }

    .scenario-media img {
      border-radius: var(--card-radius);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      width: 100%;
      height: 340px;
      object-fit: cover;
    }

    .scenario-text h3 {
      font-size: 24px;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .scenario-text p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .scenario-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .scenario-tag {
      font-size: 12px;
      background: var(--bg-light);
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    /* 板块 7: 效能统计条 */
    .stats-stripe-section {
      background: linear-gradient(135deg, #0E3A39 0%, #154544 100%);
      color: #FFFFFF;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .stats-stripe-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .stat-stripe-item {
      border-right: 1px solid rgba(255, 255, 255, 0.15);
      padding: 0 15px;
    }

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

    .stat-stripe-val {
      font-size: 38px;
      font-weight: 800;
      color: var(--secondary);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .stat-stripe-name {
      font-size: 15px;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .stat-stripe-note {
      font-size: 12px;
      color: #A4BDBB;
      line-height: 1.4;
    }

    /* 板块 8: 评价区 */
    .testimonials-section {
      background-color: var(--bg-light);
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .quote-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 35px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .quote-mark {
      font-size: 32px;
      color: var(--secondary);
      line-height: 1;
      margin-bottom: 14px;
      font-family: Georgia, serif;
    }

    .quote-body {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.8;
      margin-bottom: 25px;
    }

    .quote-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }

    .quote-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .author-info h4 {
      font-size: 15px;
      color: var(--primary);
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 9: 技术洞见资讯 */
    .insights-section {
      background-color: var(--bg-white);
    }

    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .insight-card {
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      overflow: hidden;
      background: var(--bg-white);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .insight-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .insight-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .insight-card-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .insight-tag {
      color: var(--secondary);
      font-weight: 600;
    }

    .insight-card-content h3 {
      font-size: 18px;
      color: var(--primary);
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .insight-card-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .insight-card-content .action-btn {
      align-self: flex-start;
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块 10: FAQ 手风琴 */
    .faq-section {
      background-color: var(--bg-light);
    }

    .faq-container-narrow {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--secondary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon-toggle {
      font-size: 20px;
      color: var(--secondary);
      transition: transform 0.3s ease;
      font-weight: bold;
    }

    .faq-item.active .faq-icon-toggle {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .faq-item.active .faq-answer {
      padding: 0 24px 22px;
      max-height: 250px;
    }

    /* 板块 11: 安全保障条 */
    .trust-strip-section {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 50px 0;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }

    .trust-badge-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .trust-badge-icon {
      width: 50px;
      height: 50px;
      background: rgba(14, 58, 57, 0.06);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 22px;
      flex-shrink: 0;
    }

    .trust-badge-item h4 {
      font-size: 16px;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .trust-badge-item p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 12: 转化表单与收口 */
    .conversion-section {
      background: linear-gradient(135deg, #071C1B 0%, #0E3A39 100%);
      color: #FFFFFF;
      padding: 90px 0;
    }

    .conversion-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }

    .conversion-info h2 {
      font-size: 34px;
      line-height: 1.3;
      margin-bottom: 20px;
      color: #FFFFFF;
    }

    .conversion-info p {
      font-size: 15px;
      color: #D3DFDF;
      line-height: 1.8;
      margin-bottom: 30px;
    }

    .conversion-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .conversion-contact-list li {
      font-size: 14px;
      color: #E2ECEC;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .form-wrapper {
      background: #FFFFFF;
      color: var(--text-main);
      padding: 40px;
      border-radius: var(--card-radius);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
    }

    .form-wrapper h3 {
      font-size: 20px;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .form-wrapper .form-sub {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 0 14px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

    .checkbox-group-inline {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 6px;
    }

    .checkbox-label {
      font-size: 12px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
    }

    /* 页脚 Footer */
    .site-footer {
      background-color: #061716;
      color: #A0B2B2;
      padding: 70px 0 35px;
      font-size: 13px;
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand h4 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      font-size: 15px;
      color: #FFFFFF;
      margin-bottom: 18px;
      font-weight: 600;
    }

    .footer-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-nav-list a {
      color: #A0B2B2;
      transition: color 0.2s ease;
    }

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

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    .footer-bottom-bar a {
      color: #A0B2B2;
    }

    /* 移动端底部悬浮固定转化条 */
    .mobile-sticky-cta {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: var(--bg-white);
      box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.1);
      z-index: 999;
      padding: 10px 16px;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid,
      .arch-grid,
      .case-dark-grid,
      .conversion-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .features-grid,
      .products-grid,
      .testimonials-grid,
      .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .product-box.featured {
        transform: none;
      }
      .stats-stripe-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
      }
      .stat-stripe-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-bottom: 15px;
      }
      .stat-stripe-item:nth-last-child(-n+2) {
        border-bottom: none;
      }
      .trust-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .top-meta-list li:nth-child(2) {
        display: none;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 60px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .hero-content h1 {
        font-size: 28px;
      }
      .features-grid,
      .products-grid,
      .testimonials-grid,
      .insights-grid,
      .scenario-block,
      .scenario-block.reverse,
      .case-highlights-row,
      .trust-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-kpi-bar {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .stats-stripe-grid {
        grid-template-columns: 1fr;
      }
      .stat-stripe-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
      }
      .form-wrapper {
        padding: 24px;
      }
      .checkbox-group-inline {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .mobile-sticky-cta {
        display: grid;
      }
      body {
        padding-bottom: 64px;
      }
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: -100%;
      width: 280px;
      height: 100vh;
      background: var(--bg-white);
      z-index: 1001;
      box-shadow: -4px 0 20px rgba(0,0,0,0.15);
      transition: right 0.3s ease;
      padding: 30px 20px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .mobile-drawer.open {
      right: 0;
    }

    .drawer-close {
      align-self: flex-end;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--primary);
    }

    .drawer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .drawer-links a {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
    }