:root {
      --primary-color: #6366f1;
      --primary-hover: #4f46e5;
      --accent-coral: #ff4757;
      --accent-cyan: #00d2d3;
      --accent-yellow: #ffa502;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #818cf8;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(99, 102, 241, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 20px 35px -10px rgba(99, 102, 241, 0.15);
      --max-width: 1200px;
      --radius-lg: 16px;
      --radius-md: 10px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      align-items: center;
      min-height: 100vh;
    }

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

    /* 顶部导航 */
    header.site-header {
      width: 100%;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-box .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
      object-fit: contain;
    }
    .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .brand-badge {
      background: linear-gradient(135deg, #ff4757, #ff6b81);
      color: #fff;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 20px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      padding: 8px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
      display: inline-block;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background: #eef2ff;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-header-official {
      background: linear-gradient(135deg, #6366f1, #a855f7);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: 8px;
      text-decoration: none;
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }
    .btn-header-official:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
      color: #fff;
    }

    /* 移动端菜单开关 */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 6px;
    }
    .menu-toggle span {
      width: 24px;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 通用区块排版 */
    main {
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    section {
      width: 100%;
      padding: 72px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-color);
      background: #e0e7ff;
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 艳色潮流 Hero 首屏（无图片，纯CSS动效与几何渐变） */
    .hero-section {
      padding: 80px 0 90px;
      background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(255, 71, 87, 0.08) 0%, transparent 40%),
                  linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }
    .hero-badge-wrap {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .hero-chip {
      background: #fff;
      border: 1px solid #c7d2fe;
      color: #4338ca;
      font-size: 13px;
      font-weight: 700;
      padding: 6px 16px;
      border-radius: 30px;
      box-shadow: var(--shadow-sm);
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      max-width: 900px;
      margin: 0 auto 20px;
      letter-spacing: -1px;
    }
    .hero-h1 span.gradient-text {
      background: linear-gradient(120deg, #4f46e5 0%, #ec4899 50%, #ff5722 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 18px;
      color: #475569;
      max-width: 760px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 50px;
      flex-wrap: wrap;
    }
    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      padding: 14px 34px;
      border-radius: 12px;
      text-decoration: none;
      box-shadow: 0 10px 20px rgba(255, 71, 87, 0.35);
      transition: all 0.25s ease;
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 26px rgba(255, 71, 87, 0.45);
      color: #ffffff;
    }
    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      color: #334155;
      border: 2px solid #cbd5e1;
      font-size: 16px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 12px;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    .btn-hero-secondary:hover {
      background: #f1f5f9;
      border-color: #94a3b8;
      color: #0f172a;
    }
    
    /* 核心数据卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }
    .stat-card {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease;
    }
    .stat-card:hover {
      transform: translateY(-3px);
      border-color: #a5b4fc;
    }
    .stat-value {
      font-size: 28px;
      font-weight: 900;
      color: #4f46e5;
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 聚合模型滚屏标签云 */
    .models-cloud-section {
      background: #ffffff;
      padding: 30px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .models-cloud-title {
      text-align: center;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .models-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1100px;
      margin: 0 auto;
    }
    .model-tag {
      background: #f1f5f9;
      color: #1e293b;
      font-size: 12px;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }
    .model-tag:hover {
      background: #4f46e5;
      color: #fff;
      border-color: #4f46e5;
      transform: scale(1.05);
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-content h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.4;
      color: #0f172a;
    }
    .about-content p {
      font-size: 15px;
      color: #334155;
      margin-bottom: 18px;
      line-height: 1.7;
    }
    .about-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 24px;
    }
    .about-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }
    .feature-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #dcfce7;
      color: #16a34a;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 900;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .about-preview-box {
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      border-radius: var(--radius-lg);
      padding: 24px;
      color: #ffffff;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .preview-inner {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 20px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .preview-inner h4 {
      font-size: 18px;
      margin-bottom: 12px;
      color: #fff;
    }
    .preview-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }
    .preview-badges span {
      background: rgba(255, 255, 255, 0.2);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 12px;
    }

    /* AIGC 服务与主打场景（卡片网格） */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #c7d2fe;
    }
    .service-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .service-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: #eef2ff;
      color: #4f46e5;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 900;
    }
    .service-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 16px;
    }
    .service-tags span {
      font-size: 11px;
      background: #f1f5f9;
      color: #475569;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式制作全景场景流 */
    .studio-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .studio-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.2s;
    }
    .studio-item:hover {
      border-color: #818cf8;
      box-shadow: var(--shadow-sm);
    }
    .studio-item h4 {
      font-size: 16px;
      color: #1e293b;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .studio-item p {
      font-size: 13px;
      color: #475569;
      line-height: 1.55;
    }

    /* 行业方案 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .sol-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      position: relative;
      overflow: hidden;
    }
    .sol-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #4f46e5, #06b6d4);
    }
    .sol-card h3 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 10px;
      color: #0f172a;
    }
    .sol-card p {
      font-size: 14px;
      color: #475569;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .sol-highlights {
      list-style: none;
      font-size: 13px;
      color: #334155;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .sol-highlights li::before {
      content: "✦ ";
      color: #6366f1;
      font-weight: 700;
    }

    /* 标准流程时间线 */
    .timeline-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-step {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .step-number {
      font-size: 12px;
      font-weight: 900;
      background: #eef2ff;
      color: #4f46e5;
      display: inline-block;
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 12px;
    }
    .timeline-step h4 {
      font-size: 16px;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .timeline-step p {
      font-size: 13px;
      color: #475569;
      line-height: 1.5;
    }

    /* 案例中心：结合素材图展示真实视觉 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }
    .case-info {
      padding: 20px;
    }
    .case-tag {
      font-size: 11px;
      font-weight: 700;
      color: #ff4757;
      background: #ffebee;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }
    .case-info h4 {
      font-size: 16px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .case-info p {
      font-size: 13px;
      color: #475569;
      line-height: 1.55;
    }

    /* 对比评测 - 突出推荐度五星与 9.9 高分 */
    .compare-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .rating-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 36px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-left h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 6px;
      color: #ffffff;
    }
    .rating-left p {
      font-size: 14px;
      color: #c7d2fe;
    }
    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 16px;
      background: rgba(255, 255, 255, 0.1);
      padding: 12px 24px;
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .score-stars {
      color: #ffa502;
      font-size: 20px;
      letter-spacing: 2px;
    }
    .score-num {
      font-size: 36px;
      font-weight: 900;
      color: #ffffff;
      line-height: 1;
    }
    .score-max {
      font-size: 14px;
      color: #93c5fd;
    }
    .compare-table-wrapper {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: #f8fafc;
      font-weight: 800;
      color: #0f172a;
    }
    .compare-table th.highlight-col {
      background: #eef2ff;
      color: #4338ca;
      font-size: 15px;
    }
    .compare-table td.highlight-col {
      background: #f5f7ff;
      font-weight: 700;
      color: #1e1b4b;
    }
    .tag-yes {
      color: #16a34a;
      font-weight: 800;
    }
    .tag-no {
      color: #94a3b8;
    }

    /* Token 比价 */
    .token-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      background: #ffffff;
    }
    .token-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 650px;
      font-size: 14px;
    }
    .token-table th, .token-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      text-align: left;
    }
    .token-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #0f172a;
    }
    .token-discount {
      display: inline-block;
      background: #fef2f2;
      color: #dc2626;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 4px;
      margin-left: 6px;
    }

    /* 服务网络 */
    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .net-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }
    .net-box h4 {
      font-size: 16px;
      color: #1e293b;
      margin-bottom: 6px;
    }
    .net-box p {
      font-size: 13px;
      color: #64748b;
    }

    /* 6条用户评论 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-card p {
      font-size: 14px;
      color: #334155;
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: italic;
    }
    .user-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .user-avatar-char {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
    }
    .user-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }
    .user-info span {
      font-size: 12px;
      color: #64748b;
    }

    /* FAQ 手风琴 */
    .faq-accordion {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item.active {
      border-color: #818cf8;
    }
    .faq-question {
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .faq-toggle-icon {
      font-size: 18px;
      color: #6366f1;
      transition: transform 0.2s;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #f8fafc;
      padding: 0 22px;
      font-size: 14px;
      color: #475569;
      line-height: 1.65;
    }
    .faq-item.active .faq-answer {
      padding: 16px 22px 20px;
      max-height: 250px;
    }

    /* AI百科与行业资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .article-col {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
    }
    .article-col h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .article-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .article-list li {
      display: flex;
      align-items: baseline;
      gap: 10px;
      font-size: 14px;
    }
    .article-list li a {
      color: #334155;
      text-decoration: none;
      transition: color 0.2s;
    }
    .article-list li a:hover {
      color: var(--primary-color);
      text-decoration: underline;
    }
    .article-marker {
      color: #818cf8;
      font-size: 12px;
    }

    /* 加盟代理模块 */
    .agency-box {
      background: linear-gradient(135deg, #f8fafc 0%, #ede9fe 100%);
      border: 2px dashed #a78bfa;
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }
    .agency-box h3 {
      font-size: 26px;
      font-weight: 800;
      color: #1e1b4b;
      margin-bottom: 12px;
    }
    .agency-box p {
      font-size: 15px;
      color: #4b5563;
      max-width: 720px;
      margin: 0 auto 24px;
    }
    .agency-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
      text-align: left;
    }
    .agency-point-card {
      background: #ffffff;
      padding: 18px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .agency-point-card h4 {
      font-size: 15px;
      color: #4338ca;
      margin-bottom: 6px;
    }
    .agency-point-card p {
      font-size: 13px;
      color: #64748b;
      margin: 0;
    }

    /* 需求匹配与联系我们（含表单） */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .contact-info-col h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #0f172a;
    }
    .contact-info-col p {
      font-size: 14px;
      color: #475569;
      line-height: 1.6;
      margin-bottom: 24px;
    }
    .contact-channels {
      display: flex;
      flex-direction: column;
      gap: 14px;
      font-size: 14px;
      color: #334155;
    }
    .channel-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .channel-item strong {
      color: #0f172a;
      min-width: 80px;
    }
    .qr-group {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .qr-group img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      object-fit: cover;
    }
    .qr-note {
      font-size: 12px;
      color: #64748b;
    }

    /* 表单组件 */
    .form-wrapper form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      text-align: left;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 700;
      color: #1e293b;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      color: #0f172a;
      background: #f8fafc;
      outline: none;
      transition: border-color 0.2s, background 0.2s;
    }
    .form-control:focus {
      border-color: var(--border-focus);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .btn-submit {
      background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
      color: #ffffff;
      font-size: 15px;
      font-weight: 800;
      padding: 14px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
      transition: all 0.2s ease;
    }
    .btn-submit:hover {
      background: #4338ca;
      transform: translateY(-1px);
    }

    /* 友情链接与宣传横幅 */
    .friendly-links-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 40px;
    }
    .friendly-links-wrap h4 {
      font-size: 15px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }
    .friendly-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friendly-links-list a {
      color: #475569;
      text-decoration: none;
      font-size: 13px;
      background: #f1f5f9;
      padding: 6px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }
    .friendly-links-list a:hover {
      color: var(--primary-color);
      background: #e0e7ff;
    }

    /* 底部收尾规范与统一 */
    footer.site-footer {
      width: 100%;
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 24px;
      margin-top: 40px;
      border-top: 1px solid #1e293b;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 18px;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.6;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-col ul li a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }
    .footer-col ul li a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
    }

    /* 浮动工具栏与客服入口 */
    .floating-support {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #4f46e5;
      color: #ffffff;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
      font-size: 18px;
      transition: transform 0.2s, background 0.2s;
      text-decoration: none;
    }
    .float-btn:hover {
      transform: scale(1.08);
      background: #4338ca;
    }
    .float-qr-modal {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: 10px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      width: 150px;
      text-align: center;
    }
    .float-qr-modal img {
      width: 120px;
      height: 120px;
      object-fit: cover;
    }
    .float-qr-modal span {
      display: block;
      font-size: 12px;
      color: #0f172a;
      margin-top: 6px;
      font-weight: 700;
    }
    .floating-support:hover .float-qr-modal {
      display: block;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-stats-grid,
      .studio-grid,
      .timeline-wrap,
      .network-grid,
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .cases-grid,
      .solutions-grid,
      .testimonials-grid,
      .agency-points {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .contact-wrapper,
      .articles-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .section-title {
        font-size: 24px;
      }
      .services-grid,
      .cases-grid,
      .solutions-grid,
      .testimonials-grid,
      .hero-stats-grid,
      .studio-grid,
      .timeline-wrap,
      .network-grid,
      .agency-points,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        padding: 24px;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }