:root {
      --primary: #2563EB;
      --primary-hover: #1D4ED8;
      --accent-orange: #FF6B00;
      --accent-yellow: #FFD000;
      --accent-cyan: #00E5FF;
      --accent-purple: #7C3AED;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
      --shadow-color: 0 12px 30px rgba(37, 99, 235, 0.18);
      --container-width: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    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;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      min-width: 320px;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    /* 头部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #E2E8F0;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      background: var(--accent-orange);
      color: #fff;
      font-size: 0.7rem;
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 700;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-link-item {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-link-item:hover, .nav-link-item.active {
      color: var(--primary);
      background: #EFF6FF;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-nav-primary {
      background: var(--accent-orange);
      color: #fff;
      padding: 9px 20px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 0 4px 12px rgba(255, 107, 0, 0.25);
      border: 2px solid var(--accent-orange);
    }

    .btn-nav-primary:hover {
      background: #E05E00;
      border-color: #E05E00;
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 3px;
      background: var(--text-main);
      margin: 4px 0;
      transition: 0.3s;
      border-radius: 2px;
    }

    /* 首屏 HERO (无图片) */
    .hero-section {
      background: linear-gradient(135deg, #FFFFFF 0%, #F0F7FF 50%, #FFF5EB 100%);
      padding: 70px 0 60px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #EFF6FF;
      border: 1px solid #BFDBFE;
      padding: 6px 14px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .hero-tagline-pulse {
      width: 8px;
      height: 8px;
      background: var(--accent-orange);
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.7);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(255, 107, 0, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 107, 0, 0); }
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      color: var(--text-main);
      letter-spacing: -1px;
    }

    .hero-title span.highlight-blue {
      color: var(--primary);
    }

    .hero-title span.highlight-orange {
      color: var(--accent-orange);
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }

    .btn-hero-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #000000;
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.05rem;
      padding: 16px 36px;
      border-radius: 50px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
      border: 3px solid #000000;
    }

    .btn-hero-main:hover {
      background: var(--accent-orange);
      border-color: var(--accent-orange);
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 107, 0, 0.35);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #FFFFFF;
      color: var(--primary);
      font-weight: 700;
      font-size: 1.05rem;
      padding: 16px 30px;
      border-radius: 50px;
      border: 2px solid #BFDBFE;
    }

    .btn-hero-secondary:hover {
      background: #EFF6FF;
      border-color: var(--primary);
    }

    .hero-highlights-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid #E2E8F0;
      padding-top: 24px;
    }

    .hero-h-item strong {
      display: block;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .hero-h-item span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 首屏纯CSS构建的控制台面板卡片 */
    .hero-console-card {
      background: #FFFFFF;
      border: 2px solid #0F172A;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 10px 10px 0px #0F172A;
    }

    .console-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 2px solid #E2E8F0;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

    .console-dots {
      display: flex;
      gap: 6px;
    }

    .console-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
    }

    .dot-red { background: #EF4444; }
    .dot-yellow { background: #F59E0B; }
    .dot-green { background: #10B981; }

    .console-title {
      font-size: 0.85rem;
      font-weight: 800;
      color: #64748B;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .console-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 16px;
    }

    .console-block {
      padding: 14px;
      border-radius: var(--radius-sm);
      border: 1.5px solid #E2E8F0;
    }

    .cb-1 { background: #FEF2F2; border-color: #FECACA; }
    .cb-2 { background: #F0FDF4; border-color: #BBF7D0; }
    .cb-3 { background: #EFF6FF; border-color: #BFDBFE; }
    .cb-4 { background: #FAF5FF; border-color: #E9D5FF; }

    .cb-label {
      font-size: 0.75rem;
      font-weight: 700;
      color: #64748B;
      margin-bottom: 4px;
    }

    .cb-val {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .console-status-box {
      background: #0F172A;
      border-radius: var(--radius-sm);
      padding: 14px;
      color: #F8FAFC;
    }

    .cs-head {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      margin-bottom: 8px;
      color: #94A3B8;
    }

    .cs-badge {
      color: #34D399;
      font-weight: 700;
    }

    .model-tags-scroll {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .m-tag {
      background: #1E293B;
      color: #E2E8F0;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 区域通用结构 */
    .section-block {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-pill {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
    }

    .pill-blue { background: #DBEAFE; color: var(--primary); }
    .pill-orange { background: #FFEDD5; color: var(--accent-orange); }
    .pill-purple { background: #F3E8FF; color: var(--accent-purple); }

    .section-h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 模型矩阵徽章墙 */
    .model-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-pill-item {
      background: #FFFFFF;
      border: 1.5px solid #CBD5E1;
      padding: 8px 16px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s;
    }

    .model-pill-item:hover {
      border-color: var(--accent-orange);
      color: var(--accent-orange);
      transform: translateY(-2px);
    }

    /* 服务与能力网格 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .cards-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
    }

    .feature-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .card-accent-bar {
      width: 40px;
      height: 6px;
      background: var(--accent-orange);
      border-radius: 3px;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业解决方案卡片 */
    .scenario-card {
      background: #FFFFFF;
      border: 2px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.25s;
    }

    .scenario-card:hover {
      border-color: var(--accent-purple);
      box-shadow: 0 8px 20px rgba(124, 58, 237, 0.1);
    }

    .sc-tag {
      font-size: 0.75rem;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 4px;
      background: #F1F5F9;
      color: #475569;
      display: inline-block;
      margin-bottom: 12px;
    }

    .scenario-card h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .scenario-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 流程与网络 */
    .step-box-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-item {
      background: #FFFFFF;
      border: 2px dashed #CBD5E1;
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .step-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--accent-orange);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-item h3 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 对比评测表格与评分卡 */
    .rating-banner {
      background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
      border-radius: var(--radius-lg);
      padding: 36px;
      color: #FFFFFF;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 36px;
    }

    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .rating-big-num {
      font-size: 3.8rem;
      font-weight: 900;
      color: var(--accent-yellow);
      line-height: 1;
    }

    .rating-meta-text h3 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .stars-icon {
      color: #F59E0B;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #F8FAFC;
      font-weight: 800;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .compare-table tr:hover td {
      background: #F1F5F9;
    }

    .highlight-col {
      background: #EFF6FF;
      font-weight: 700;
      color: var(--primary);
    }

    /* 案例图片展示 */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .gallery-item {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .gallery-item img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }

    .gallery-caption {
      padding: 16px 20px;
      background: #FFFFFF;
    }

    .gallery-caption h4 {
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .gallery-caption p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 用户评论 */
    .testimonial-card {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .user-avatar-badge {
      width: 44px;
      height: 44px;
      background: #E0E7FF;
      color: var(--primary);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .testimonial-card p {
      font-size: 0.9rem;
      color: #334155;
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-item.active {
      border-color: var(--primary);
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-arrow {
      font-weight: 800;
      transition: transform 0.25s;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    /* 文章与资讯链接 */
    .article-links-box {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }

    .article-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 12px;
    }

    .art-link-btn {
      background: #F1F5F9;
      padding: 8px 16px;
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      border: 1px solid #E2E8F0;
    }

    .art-link-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 表单与联系 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-card {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
    }

    .contact-info-item {
      margin-bottom: 20px;
    }

    .contact-info-item strong {
      display: block;
      font-size: 0.85rem;
      color: #64748B;
      margin-bottom: 4px;
    }

    .contact-info-item span, .contact-info-item a {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .qr-container {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      text-align: center;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      margin: 0 auto 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .form-box {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 2px solid #CBD5E1;
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s;
      font-family: inherit;
    }

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

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .btn-submit {
      width: 100%;
      background: var(--accent-orange);
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.05rem;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 16px rgba(255, 107, 0, 0.3);
      transition: all 0.2s;
    }

    .btn-submit:hover {
      background: #E05E00;
      transform: translateY(-2px);
    }

    /* 代理加盟专区 */
    .partner-banner {
      background: linear-gradient(135deg, #FF6B00 0%, #FF8800 100%);
      border-radius: var(--radius-lg);
      padding: 40px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 30px;
      align-items: center;
    }

    .partner-banner h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .partner-banner p {
      font-size: 1rem;
      opacity: 0.95;
      line-height: 1.6;
    }

    .partner-cta-box {
      text-align: right;
    }

    .btn-partner {
      display: inline-block;
      background: #FFFFFF;
      color: var(--accent-orange);
      font-weight: 800;
      font-size: 1.05rem;
      padding: 14px 32px;
      border-radius: 50px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .btn-partner:hover {
      background: #000000;
      color: #FFFFFF;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 3px solid var(--accent-orange);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.2fr 2fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #FFFFFF;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
    }

    .footer-links-group h5 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-links-flex a {
      color: #CBD5E1;
      font-size: 0.9rem;
      background: #1E293B;
      padding: 6px 14px;
      border-radius: 4px;
    }

    .footer-links-flex a:hover {
      color: #FFFFFF;
      background: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748B;
    }

    /* 悬浮客服 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 2px solid #0F172A;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.8rem;
      color: var(--text-main);
      cursor: pointer;
      transition: all 0.2s;
    }

    .floating-btn.primary-float {
      background: var(--accent-orange);
      color: #FFFFFF;
      border-color: var(--accent-orange);
    }

    .floating-btn:hover {
      transform: scale(1.08);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .cards-grid-4 { grid-template-columns: repeat(2, 1fr); }
      .cards-grid-3 { grid-template-columns: repeat(2, 1fr); }
      .step-box-row { grid-template-columns: repeat(2, 1fr); }
      .hero-wrapper { grid-template-columns: 1fr; }
      .partner-banner { grid-template-columns: 1fr; text-align: left; }
      .partner-cta-box { text-align: left; }
    }

    @media (max-width: 768px) {
      .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: 2px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show { display: flex; }
      .nav-actions { display: none; }
      .hero-title { font-size: 2.1rem; }
      .cards-grid-3, .cards-grid-4, .cards-grid-2, .gallery-grid, .contact-grid, .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .step-box-row { grid-template-columns: 1fr; }
      .hero-highlights-row { grid-template-columns: 1fr; gap: 12px; }
      .rating-banner { flex-direction: column; text-align: center; }
      .rating-score-box { flex-direction: column; }
    }