:root {
      --bg-base: #f7f9fd;
      --bg-surface: #ffffff;
      --bg-elevated: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-soft: #64748b;
      --neon-cyan: #00d2ff;
      --neon-purple: #7928ca;
      --neon-pink: #ff0080;
      --neon-blue: #2563eb;
      --neon-gradient: linear-gradient(135deg, #00d2ff 0%, #7928ca 50%, #ff0080 100%);
      --neon-border: linear-gradient(135deg, rgba(0,210,255,0.4), rgba(121,40,202,0.4), rgba(255,0,128,0.4));
      --border-color: rgba(226, 232, 240, 0.9);
      --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 0 15px 0 rgba(0, 210, 255, 0.08);
      --card-shadow-hover: 0 16px 32px -4px rgba(15, 23, 42, 0.12), 0 0 25px 2px rgba(121, 40, 202, 0.18);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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;
      background-color: var(--bg-base);
      background-image: 
        radial-gradient(circle at 10% 15%, rgba(0, 210, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 45%, rgba(121, 40, 202, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 30% 85%, rgba(255, 0, 128, 0.04) 0%, transparent 40%);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

    /* 全局容器统一约束 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

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

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

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

    .brand-tag {
      font-size: 0.7rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: rgba(0, 210, 255, 0.12);
      color: var(--neon-blue);
      border: 1px solid rgba(0, 210, 255, 0.3);
    }

    /* 必须要求：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--neon-purple);
      background: rgba(121, 40, 202, 0.06);
    }

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

    .btn-neon-glow {
      background: var(--neon-gradient);
      color: #ffffff !important;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 18px rgba(121, 40, 202, 0.35);
      transition: var(--transition);
    }

    .btn-neon-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 0, 128, 0.45);
      filter: brightness(1.06);
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid rgba(203, 213, 225, 0.8);
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .btn-secondary:hover {
      border-color: var(--neon-cyan);
      background: rgba(0, 210, 255, 0.05);
      color: var(--neon-blue);
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 模块通用样式 */
    section {
      padding: 80px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 52px;
    }

    .section-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      background: rgba(0, 210, 255, 0.1);
      color: var(--neon-purple);
      border: 1px solid rgba(0, 210, 255, 0.3);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO 区域（严格无图片） */
    .hero-section {
      padding: 84px 0 70px;
      position: relative;
      background: radial-gradient(circle at 50% 0%, rgba(0, 210, 255, 0.12) 0%, rgba(121, 40, 202, 0.06) 40%, transparent 70%);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -1px;
      color: #0b132b;
      margin-bottom: 20px;
    }

    .neon-highlight {
      background: var(--neon-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      font-weight: 400;
      line-height: 1.7;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-primary-cta {
      font-size: 1.05rem;
      padding: 15px 36px;
      font-weight: 700;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 30px rgba(0, 210, 255, 0.4), 0 0 20px rgba(121, 40, 202, 0.3);
      position: relative;
      overflow: hidden;
    }

    .hero-primary-cta::after {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: linear-gradient(60deg, transparent, rgba(255,255,255,0.25), transparent);
      transform: rotate(30deg);
      animation: neonShimmer 4s infinite linear;
    }

    @keyframes neonShimmer {
      0% { transform: translateX(-100%) rotate(30deg); }
      100% { transform: translateX(100%) rotate(30deg); }
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: var(--bg-surface);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      position: relative;
    }

    .hero-stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--neon-gradient);
      border-radius: var(--radius-md) var(--radius-md) 0 0;
      opacity: 0.8;
    }

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

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      display: block;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-soft);
      font-weight: 500;
    }

    /* 平台核心卡片样式 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .feature-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
      overflow: hidden;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      border-color: rgba(0, 210, 255, 0.5);
      box-shadow: var(--card-shadow-hover);
    }

    .card-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid rgba(0, 210, 255, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
      color: var(--neon-purple);
    }

    .card-title {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .card-text {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .card-tag-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }

    .card-tag {
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: var(--bg-elevated);
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 多模型展示徽章流 */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid rgba(203, 213, 225, 0.8);
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
      transition: var(--transition);
    }

    .model-pill:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(0, 210, 255, 0.2);
      color: var(--neon-purple);
    }

    .model-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--neon-cyan);
      box-shadow: 0 0 6px var(--neon-cyan);
    }

    /* 流程步骤 */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
    }

    .step-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: rgba(121, 40, 202, 0.4);
    }

    .step-badge {
      position: absolute;
      top: -14px;
      left: 22px;
      background: var(--neon-gradient);
      color: #ffffff;
      font-weight: 800;
      font-size: 0.82rem;
      padding: 2px 12px;
      border-radius: var(--radius-full);
      box-shadow: 0 2px 10px rgba(0, 210, 255, 0.3);
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin: 12px 0 8px;
      color: var(--text-main);
    }

    /* 对比评测高亮板块 */
    .rating-banner {
      background: #ffffff;
      border: 2px solid rgba(0, 210, 255, 0.3);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 8px 32px rgba(121, 40, 202, 0.1), 0 0 20px rgba(0, 210, 255, 0.15);
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

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

    .rating-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--neon-purple);
      line-height: 1;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.6rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .rating-summary-text {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 600px;
    }

    .comparison-table-wrapper {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--card-shadow);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.94rem;
    }

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

    .comparison-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table tr:hover td {
      background: rgba(0, 210, 255, 0.03);
    }

    .highlight-col {
      background: rgba(0, 210, 255, 0.04);
      font-weight: 700;
      color: var(--neon-purple);
    }

    /* 案例中心图片展示 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-shadow-hover);
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-wrap.aspect-square {
      aspect-ratio: 1 / 1;
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

    .case-card:hover .ai-page-image {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
      flex-grow: 1;
    }

    .case-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 需求匹配与表单 */
    .form-wrapper-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(0, 210, 255, 0.3);
      padding: 44px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05), 0 0 20px rgba(0, 210, 255, 0.1);
      max-width: 860px;
      margin: 0 auto;
    }

    .contact-form {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #f8fafc;
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.15);
    }

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

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

    .faq-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }

    .faq-card:hover {
      border-color: rgba(0, 210, 255, 0.4);
    }

    .faq-trigger {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      gap: 16px;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--neon-purple);
      transition: transform 0.3s ease;
    }

    .faq-content {
      padding: 0 24px 18px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .faq-card.open .faq-content {
      display: block;
    }

    .faq-card.open .faq-icon {
      transform: rotate(45deg);
    }

    /* 客户评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: rgba(0, 210, 255, 0.4);
    }

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

    .review-avatar-text {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--neon-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .review-author-name {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-author-role {
      font-size: 0.8rem;
      color: var(--text-soft);
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 14px;
      font-style: italic;
    }

    .review-stars {
      color: #f59e0b;
      font-size: 0.88rem;
    }

    /* 文章列表与资讯 */
    .news-section-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

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

    .news-item-link {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      color: var(--text-main);
      font-weight: 500;
      font-size: 0.95rem;
    }

    .news-item-link:hover {
      background: rgba(0, 210, 255, 0.06);
      border-color: var(--neon-cyan);
      color: var(--neon-purple);
      padding-left: 24px;
    }

    /* 联系我们 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .contact-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--card-shadow);
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 20px;
    }

    .contact-item-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(0, 210, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-blue);
      font-weight: 700;
      font-size: 1.2rem;
    }

    .contact-qr-container {
      text-align: center;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--card-shadow);
    }

    .qr-img-box {
      width: 170px;
      height: 170px;
      margin: 0 auto 16px;
      padding: 8px;
      background: #ffffff;
      border: 2px dashed rgba(0, 210, 255, 0.5);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-img-box img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 6px;
    }

    /* 底部通用规范对齐 */
    .site-footer {
      background: #0b132b;
      color: #94a3b8;
      padding: 56px 0 28px;
      border-top: 1px solid #1e293b;
      margin-top: auto;
    }

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

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      margin-bottom: 12px;
      font-weight: 800;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      max-width: 420px;
    }

    .footer-title {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list a {
      color: #94a3b8;
      font-size: 0.9rem;
    }

    .footer-links-list a:hover {
      color: var(--neon-cyan);
    }

    .friendly-links-wrap {
      padding: 24px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.88rem;
    }

    .friendly-links-title {
      color: #cbd5e1;
      font-weight: 600;
      margin-bottom: 10px;
      display: inline-block;
      margin-right: 12px;
    }

    .friendly-links-list {
      display: inline-flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friendly-links-list a {
      color: #94a3b8;
    }

    .friendly-links-list a:hover {
      color: var(--neon-cyan);
    }

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
    }

    /* 悬浮客服与置顶按钮 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--neon-purple);
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: var(--neon-cyan);
      box-shadow: 0 6px 20px rgba(0, 210, 255, 0.3);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-h1 {
        font-size: 2.2rem;
      }
      .card-grid-3,
      .steps-container,
      .case-gallery-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-grid-4,
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid #e2e8f0;
        box-shadow: 0 8px 24px rgba(0,0,0,0.06);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .card-grid-3,
      .card-grid-2,
      .card-grid-4,
      .steps-container,
      .case-gallery-grid,
      .reviews-grid,
      .contact-grid,
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .contact-form {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .hero-h1 {
        font-size: 1.8rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .form-wrapper-box {
        padding: 24px 18px;
      }
      .rating-banner {
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
      }
    }