/* roulang page: index */
/* 全局设计变量 Token */
    :root {
      --primary: #1E40AF;
      --primary-hover: #1D4ED8;
      --accent: #0284C7;
      --gold: #D97706;
      --gold-light: #F59E0B;
      --bg-main: #FFFFFF;
      --bg-alt: #F8FAFC;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-title: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-dark: #334155;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 25px -5px rgba(30, 64, 175, 0.12), 0 8px 10px -6px rgba(0,0,0,0.04);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    /* 基础 Reset */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: var(--font-family);
      color: var(--text-body);
      background-color: var(--bg-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

    /* 容器体系 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部双行导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .top-bar {
      background: #0B1329;
      color: #94A3B8;
      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-bar-tags {
      display: flex;
      gap: 16px;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-bar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #10B981;
      display: inline-block;
    }
    .main-nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .nav-logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 900;
      font-size: 20px;
      box-shadow: 0 4px 10px rgba(30,64,175,0.3);
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      color: var(--text-title);
      font-weight: 500;
      font-size: 15px;
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }
    .nav-action {
      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;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #2563EB);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(30, 64, 175, 0.35);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover), var(--primary));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(30, 64, 175, 0.45);
    }
    .btn-gold {
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
    }
    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(217, 119, 6, 0.45);
    }
    .btn-outline {
      border-color: var(--border-color);
      background: #FFFFFF;
      color: var(--text-title);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #F8FAFC;
    }

    /* 板块通用样式 */
    .section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #E2E8F0;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 56px;
    }
    .section-header.text-left {
      text-align: left;
      margin-left: 0;
    }
    .section-subtitle {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: #EFF6FF;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid #DBEAFE;
    }
    .section-dark .section-subtitle {
      background: rgba(2, 132, 199, 0.2);
      color: #38BDF8;
      border-color: rgba(2, 132, 199, 0.4);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-title);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* [板块 1] Hero 旗舰店首屏 */
    .hero-section {
      position: relative;
      background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 64, 175, 0.85) 100%), url('/assets/images/682bddfee8d3fb74.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 80px 0 100px;
      overflow: hidden;
    }
    .hero-wrap {
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-badge-strip {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 24px;
      font-size: 14px;
      backdrop-filter: blur(6px);
    }
    .hero-title {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -1px;
      text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    }
    .hero-lead {
      font-size: 18px;
      color: #E2E8F0;
      line-height: 1.8;
      margin-bottom: 36px;
      font-weight: 400;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .hero-actions .btn {
      padding: 14px 32px;
      font-size: 16px;
      border-radius: var(--radius-sm);
    }
    /* 首屏大图上方系列导航条 */
    .hero-subnav-bar {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 12px;
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 12px 20px;
      backdrop-filter: blur(10px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }
    .hero-subnav-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: #E2E8F0;
      font-size: 14px;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      background: rgba(255, 255, 255, 0.05);
    }
    .hero-subnav-item:hover {
      background: var(--primary);
      color: #FFFFFF;
    }
    .hero-subnav-item span {
      color: #38BDF8;
      font-weight: 700;
    }

    /* [板块 2] 品牌与核心系统技术参数区 */
    .tech-specs-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .specs-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .specs-table th, .specs-table td {
      padding: 14px 20px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
      text-align: left;
    }
    .specs-table tr:last-child td {
      border-bottom: none;
    }
    .specs-table th {
      background: var(--bg-alt);
      color: var(--text-title);
      font-weight: 700;
      width: 35%;
    }
    .specs-table td {
      color: var(--text-body);
    }
    .specs-badge {
      display: inline-block;
      padding: 2px 8px;
      background: #DCFCE7;
      color: #15803D;
      font-size: 12px;
      border-radius: 4px;
      font-weight: 600;
      margin-left: 6px;
    }
    .specs-image-box {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }
    .specs-image-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: var(--transition);
    }
    .specs-image-box:hover img {
      transform: scale(1.03);
    }

    /* [板块 3] 棋牌赛事核心优势区（6张卡片） */
    .grid-3-col {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .advantage-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .advantage-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: #BFDBFE;
    }
    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: #EFF6FF;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 20px;
      border: 1px solid #DBEAFE;
    }
    .advantage-card h3 {
      font-size: 20px;
      color: var(--text-title);
      margin-bottom: 12px;
      font-weight: 700;
    }
    .advantage-card p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* [板块 4] 矩阵方案区 (3张卡片) */
    .solution-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .solution-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .solution-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .solution-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .solution-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #38BDF8;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .solution-body {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-body h3 {
      font-size: 20px;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .solution-body p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .solution-features {
      list-style: none;
      margin-bottom: 24px;
      margin-top: auto;
    }
    .solution-features li {
      font-size: 13.5px;
      color: var(--text-body);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px dashed var(--border-color);
    }
    .solution-features li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    /* [板块 5] 深色技术架构与理念对比区 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .compare-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .compare-box h3 {
      font-size: 20px;
      color: #FFFFFF;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-dark);
    }
    .compare-list {
      list-style: none;
    }
    .compare-list li {
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 14.5px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .compare-list li:last-child {
      border-bottom: none;
    }
    .compare-label {
      color: #94A3B8;
    }
    .compare-val-bad {
      color: #F87171;
      font-weight: 600;
    }
    .compare-val-good {
      color: #34D399;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* [板块 6] 多场景应用演示区 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .scenario-badge {
      display: inline-block;
      background: #E0F2FE;
      color: #0369A1;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 14px;
    }
    .scenario-item h3 {
      font-size: 19px;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .scenario-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .scenario-meta {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
    }

    /* [板块 7] 关键运营数据与实力统计条 */
    .stats-bar {
      background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 100%);
      color: #FFFFFF;
      padding: 50px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-number {
      font-size: 40px;
      font-weight: 800;
      color: #FCD34D;
      line-height: 1;
      margin-bottom: 8px;
      letter-spacing: -1px;
    }
    .stat-label {
      font-size: 15px;
      color: #E2E8F0;
      font-weight: 500;
    }

    /* [板块 8] 行业口碑与合作伙伴评价区 */
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-card p {
      font-size: 14.5px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 16px;
    }
    .author-info h4 {
      font-size: 15px;
      color: var(--text-title);
      font-weight: 700;
    }
    .author-info span {
      font-size: 12.5px;
      color: var(--text-muted);
    }

    /* [板块 9] 棋牌赛事资讯与合规指南内嵌区 */
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .news-img {
      height: 190px;
      object-fit: cover;
      width: 100%;
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .news-date {
      font-size: 12.5px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-content h3 {
      font-size: 17.5px;
      color: var(--text-title);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      margin-top: auto;
    }
    .news-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* [板块 10] 异议拆解与技术接入 FAQ (手风琴组件) */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
      color: var(--text-title);
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 20px;
      line-height: 1;
      transition: transform 0.3s;
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      background: #FAFAFA;
      border-top: 1px solid transparent;
    }
    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 14.5px;
      color: var(--text-body);
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      border-top-color: var(--border-color);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* [板块 11] 交付保障与合规承诺条 */
    .trust-strip {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0;
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .trust-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .trust-icon {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #EFF6FF;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      flex-shrink: 0;
    }
    .trust-text h4 {
      font-size: 15px;
      color: var(--text-title);
      font-weight: 700;
    }
    .trust-text p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* [板块 12] 底部强转化 CTA 区 */
    .cta-section {
      background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
      color: #FFFFFF;
      padding: 80px 0;
      position: relative;
    }
    .cta-box {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-text p {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
      color: var(--text-title);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-body);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      transition: var(--transition);
      background: #FFFFFF;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
    }

    /* 悬浮固定转化条 (移动端更友好) */
    .floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: #0F172A;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding: 12px 20px;
      z-index: 999;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 -4px 15px rgba(0,0,0,0.15);
    }
    .floating-text {
      color: #FFFFFF;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .floating-badge {
      background: var(--gold);
      color: #FFFFFF;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    /* 综合企业级页脚 */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      font-size: 14px;
      padding-top: 60px;
      padding-bottom: 80px; /* 避开固定悬浮条 */
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 14px;
      font-weight: 700;
    }
    .footer-brand p {
      line-height: 1.7;
      font-size: 13.5px;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: #FFFFFF;
      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 p {
      margin-bottom: 8px;
      font-size: 13.5px;
      line-height: 1.6;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }
    .footer-bottom a {
      color: #64748B;
      margin: 0 6px;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 移动端菜单控制 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-title);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-3-col, .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .tech-specs-grid {
        grid-template-columns: 1fr;
      }
      .cta-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        gap: 16px;
      }
      .nav-links.show {
        display: flex;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-lead {
        font-size: 15px;
      }
      .hero-subnav-bar {
        display: none;
      }
      .grid-3-col, .scenario-grid {
        grid-template-columns: 1fr;
      }
      .trust-grid {
        grid-template-columns: 1fr 1fr;
      }
      .section {
        padding: 60px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .trust-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .hero-actions .btn {
        width: 100%;
      }
    }