/* roulang page: index */
:root {
      --primary: #0F5132;
      --primary-light: #166534;
      --accent: #0D9488;
      --accent-soft: rgba(13, 148, 136, 0.1);
      --amber: #EAB308;
      --amber-dark: #CA8A04;
      --dark-slate: #0F172A;
      --slate-800: #1E293B;
      --slate-700: #334155;
      --muted: #64748B;
      --border: #E2E8F0;
      --bg-light: #F8FAFC;
      --white: #FFFFFF;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 20px -4px rgba(15, 81, 50, 0.08);
      --shadow-lg: 0 16px 32px -8px rgba(15, 81, 50, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      color: var(--dark-slate);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }

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

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

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

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

    /* 顶部状态栏与主导航 */
    .top-bar {
      background-color: var(--dark-slate);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-left {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .top-bar-badge {
      background: rgba(13, 148, 136, 0.2);
      color: #2DD4BF;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 11px;
      letter-spacing: 0.5px;
    }
    .top-bar-right {
      display: flex;
      gap: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      transition: all 0.3s ease;
    }
    .site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.3px;
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--primary);
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
      align-items: center;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 600;
      color: var(--slate-700);
      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(--accent);
      transition: width 0.2s ease;
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .nav-cta {
      background: var(--primary);
      color: var(--white);
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(15, 81, 50, 0.2);
    }
    .nav-cta:hover {
      background: var(--primary-light);
      color: var(--white);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--dark-slate);
    }

    /* 板块通用规范 */
    .section-padding {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      background: var(--accent-soft);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-slate);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--muted);
      line-height: 1.7;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      min-height: 48px;
    }
    .btn-primary {
      background: var(--primary);
      color: var(--white);
    }
    .btn-primary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(15, 81, 50, 0.25);
    }
    .btn-outline-gold {
      background: rgba(234, 179, 8, 0.1);
      border-color: var(--amber);
      color: #92400E;
    }
    .btn-outline-gold:hover {
      background: var(--amber);
      color: #000;
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: var(--white);
      border-color: var(--border);
      color: var(--slate-700);
    }
    .btn-secondary:hover {
      background: #F1F5F9;
      border-color: #CBD5E1;
    }

    /* 板块 1: Hero（黑金会员俱乐部质感） */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #1e3a2b 0%, #0c1a13 50%, #060e0a 100%);
      color: var(--white);
      padding: 90px 0 110px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(234, 179, 8, 0.25);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-vip-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(90deg, rgba(234, 179, 8, 0.2) 0%, rgba(234, 179, 8, 0.05) 100%);
      border: 1px solid rgba(234, 179, 8, 0.4);
      padding: 6px 14px;
      border-radius: 30px;
      color: #FDE047;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      background: linear-gradient(90deg, #FACC15, #34D399);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 16px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 32px;
      max-width: 620px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-stats-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .hero-stat-item h4 {
      font-size: 24px;
      font-weight: 800;
      color: #FACC15;
    }
    .hero-stat-item p {
      font-size: 12px;
      color: #94A3B8;
    }
    .hero-card-stage {
      position: relative;
    }
    .hero-banner-frame {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 2px solid rgba(234, 179, 8, 0.3);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .hero-banner-frame img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .hero-floating-card {
      position: absolute;
      bottom: -24px;
      left: -20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(234, 179, 8, 0.4);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      box-shadow: 0 16px 30px rgba(0, 0, 0, 0.35);
      max-width: 280px;
    }
    .hero-floating-card .tag {
      font-size: 11px;
      color: #38BDF8;
      font-weight: 700;
    }
    .hero-floating-card h5 {
      font-size: 14px;
      color: #FFFFFF;
      margin: 4px 0;
    }
    .hero-floating-card p {
      font-size: 12px;
      color: #94A3B8;
      line-height: 1.4;
    }

    /* 板块 2: 品牌与硬件标准介绍 (ID: intro) */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .intro-image-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      background: var(--white);
    }
    .intro-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .spec-table-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 14px;
      background: var(--white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
    }
    .spec-icon {
      width: 36px;
      height: 36px;
      background: var(--accent-soft);
      color: var(--accent);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    .spec-item h4 {
      font-size: 15px;
      margin-bottom: 2px;
      color: var(--dark-slate);
    }
    .spec-item p {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.5;
    }

    /* 板块 3: 核心优势看板 (ID: features) 3x2 网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: all 0.3s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }
    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(15, 81, 50, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 20px;
      font-weight: 700;
    }
    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark-slate);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.6;
    }

    /* 板块 4: 产品矩阵与终端场景 (ID: matrix) 3 卡对比 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .matrix-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }
    .matrix-card-media {
      height: 200px;
      position: relative;
    }
    .matrix-card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .matrix-pill {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #E2E8F0;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
    }
    .matrix-content {
      padding: 28px 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .matrix-content h3 {
      font-size: 20px;
      margin-bottom: 12px;
      color: var(--dark-slate);
    }
    .matrix-content p {
      font-size: 14px;
      color: var(--muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .matrix-list {
      list-style: none;
      margin-bottom: 24px;
      border-top: 1px dashed var(--border);
      padding-top: 16px;
    }
    .matrix-list li {
      font-size: 13px;
      color: var(--slate-700);
      margin-bottom: 8px;
      position: relative;
      padding-left: 18px;
    }
    .matrix-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: bold;
    }

    /* 板块 5: 深色标杆案例 (ID: case-study) */
    .dark-case-section {
      background: #0B132B;
      color: var(--white);
      padding: 85px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .dark-case-section .section-title {
      color: var(--white);
    }
    .dark-case-section .section-desc {
      color: #94A3B8;
    }
    .case-container-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .case-visual-frame {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(13, 148, 136, 0.4);
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .case-visual-frame img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .case-highlights-box {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .highlight-card {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 24px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--accent);
    }
    .highlight-card h4 {
      font-size: 17px;
      color: #38BDF8;
      margin-bottom: 6px;
    }
    .highlight-card p {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.6;
    }

    /* 板块 6: 实际场景用户故事 (ID: user-stories) */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .story-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }
    .story-cover {
      height: 220px;
    }
    .story-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-body {
      padding: 28px;
    }
    .story-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .author-badge {
      background: var(--accent-soft);
      color: var(--accent);
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
    }
    .story-author h4 {
      font-size: 16px;
      color: var(--dark-slate);
    }
    .story-body p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }

    /* 板块 7: 关键业务数据看板 (ID: metrics) */
    .metrics-strip {
      background: #F1F5F9;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      padding: 60px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-card {
      background: var(--white);
      padding: 32px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }
    .metric-num {
      font-size: 38px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 8px;
      line-height: 1.1;
    }
    .metric-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 12px;
      color: var(--muted);
    }

    /* 板块 8: 口碑与评价 (ID: testimonials) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .testi-stars {
      color: var(--amber);
      font-size: 16px;
      margin-bottom: 16px;
    }
    .testi-text {
      font-size: 14px;
      color: var(--slate-700);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: normal;
    }
    .testi-user {
      display: flex;
      flex-direction: column;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }
    .testi-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-slate);
    }
    .testi-role {
      font-size: 12px;
      color: var(--muted);
    }

    /* 板块 9: 行业资讯与版本动态 (ID: news-brief) */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      max-width: 980px;
      margin: 0 auto 36px auto;
    }
    .news-item-card {
      display: grid;
      grid-template-columns: 260px 1fr;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .news-item-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }
    .news-thumb {
      height: 170px;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-detail {
      padding: 22px 28px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .news-meta {
      font-size: 12px;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 6px;
    }
    .news-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 8px;
    }
    .news-summary {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.6;
    }
    .news-footer-action {
      text-align: center;
    }

    /* 板块 10: 数据安全与合规保障 (ID: compliance) */
    .compliance-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .comp-card {
      padding: 30px 20px;
      background: var(--bg-light);
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      text-align: center;
    }
    .comp-badge-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 16px auto;
      background: rgba(15, 81, 50, 0.1);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
    }
    .comp-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 8px;
    }
    .comp-card p {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.5;
    }

    /* 板块 11: 常见问题手风琴 FAQ (ID: faq-section) */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item[open] {
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-slate);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: '+';
      font-size: 20px;
      color: var(--accent);
      font-weight: 400;
      transition: transform 0.2s ease;
    }
    .faq-item[open] .faq-summary::after {
      content: '−';
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    /* 板块 12: 需求定制与咨询表单 (ID: contact-form) */
    .contact-card-box {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      box-shadow: var(--shadow-md);
    }
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 48px;
      align-items: start;
    }
    .contact-meta-side h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 16px;
    }
    .contact-meta-side p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .contact-info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .contact-info-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--slate-700);
      font-weight: 600;
    }
    .form-group-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 18px;
    }
    .form-field label {
      font-size: 13px;
      font-weight: 700;
      color: var(--slate-700);
    }
    .form-field input, .form-field select, .form-field textarea {
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark-slate);
      background: #FAFAFA;
      transition: all 0.2s ease;
      outline: none;
    }
    .form-field input:focus, .form-field select:focus, .form-field textarea:focus {
      border-color: var(--accent);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    }
    .form-field textarea {
      resize: vertical;
      min-height: 100px;
    }
    .form-submit-btn {
      width: 100%;
      background: var(--primary);
      color: var(--white);
      border: none;
      border-radius: var(--radius-sm);
      padding: 14px;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(15, 81, 50, 0.25);
      transition: all 0.2s ease;
    }
    .form-submit-btn:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    /* 页脚系统 */
    .site-footer {
      background: #0B132B;
      color: #94A3B8;
      font-size: 14px;
      padding-top: 70px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 50px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #2DD4BF;
      padding-left: 4px;
    }
    .footer-contact-info p {
      font-size: 13px;
      margin-bottom: 8px;
      color: #94A3B8;
    }
    .footer-contact-info strong {
      color: #F8FAFC;
    }
    .footer-bottom {
      padding: 24px 0;
      text-align: center;
      font-size: 12px;
      color: #475569;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-card-stage {
        display: none;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid {
        grid-template-columns: 1fr;
      }
      .case-container-grid {
        grid-template-columns: 1fr;
      }
      .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 24px 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 16px;
        border-bottom: 1px solid var(--border);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-cta {
        display: none;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-title {
        font-size: 24px;
      }
      .features-grid {
        grid-template-columns: 1fr;
      }
      .stories-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .news-item-card {
        grid-template-columns: 1fr;
      }
      .news-thumb {
        height: 180px;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .form-group-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }