:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --accent-pink: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --shadow-glow: 0 12px 30px rgba(99, 102, 241, 0.18);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --container-max: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: radial-gradient(circle at 10% 20%, rgba(236, 72, 153, 0.04) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 45%),
                  #f8fafc;
    }

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

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }

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

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

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

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 严格满足页面要求 */
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 14.5px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 999px;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      line-height: 1.2;
    }

    .btn-primary {
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(236, 72, 153, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      border-color: #cbd5e1;
      color: var(--text-main);
      background: #ffffff;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(79, 70, 229, 0.04);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: 0.2s;
    }

    /* 首屏 HERO (严禁包含图片) */
    .hero-section {
      padding: 75px 0 60px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #ffffff 0%, rgba(241, 245, 249, 0.6) 100%);
      border-bottom: 1px solid #e2e8f0;
    }

    .hero-shape-1 {
      position: absolute;
      top: -80px;
      right: -80px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(236, 72, 153, 0.22) 0%, rgba(236, 72, 153, 0) 70%);
      filter: blur(40px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-shape-2 {
      position: absolute;
      bottom: -60px;
      left: -60px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, rgba(6, 182, 212, 0) 70%);
      filter: blur(50px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
      border: 1px solid rgba(236, 72, 153, 0.25);
      color: #9d174d;
      font-size: 13.5px;
      font-weight: 700;
      margin-bottom: 22px;
      letter-spacing: 0.5px;
    }

    .hero-badge span.dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #ec4899;
      box-shadow: 0 0 10px #ec4899;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title .highlight {
      background: linear-gradient(135deg, #4f46e5 15%, #ec4899 60%, #f59e0b 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .hero-cta-btn-main {
      padding: 14px 36px;
      font-size: 16px;
      font-weight: 700;
      border-radius: 999px;
      background: linear-gradient(135deg, #ec4899 0%, #4f46e5 100%);
      color: #ffffff;
      box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4);
    }

    .hero-cta-btn-main:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 12px 30px rgba(79, 70, 229, 0.5);
      color: #ffffff;
    }

    .hero-cta-btn-sub {
      padding: 14px 30px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 999px;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid #cbd5e1;
    }

    .hero-cta-btn-sub:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: left;
    }

    .metric-card {
      background: #ffffff;
      padding: 18px 20px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .metric-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .metric-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 4px;
      background: linear-gradient(135deg, #0f172a 60%, #4f46e5 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 聚合模型展播徽章条 */
    .models-bar {
      padding: 24px 0;
      background: #ffffff;
      border-bottom: 1px solid #e2e8f0;
    }

    .models-label {
      text-align: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-light);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 14px;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px 12px;
    }

    .model-tag {
      display: inline-block;
      padding: 5px 12px;
      background: #f1f5f9;
      color: var(--text-muted);
      border-radius: 6px;
      font-size: 12.5px;
      font-weight: 600;
      border: 1px solid #e2e8f0;
      transition: all 0.2s;
    }

    .model-tag:hover {
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      border-color: rgba(79, 70, 229, 0.3);
    }

    /* 通用章节规范 */
    section.section-block {
      padding: 85px 0;
      position: relative;
    }

    .section-block.alt-bg {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      border-bottom: 1px solid #e2e8f0;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 12.5px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(236, 72, 153, 0.1);
      color: #be185d;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 15.5px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 关于我们与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card-box {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .about-card-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 6px;
      height: 100%;
      background: linear-gradient(180deg, #ec4899, #4f46e5);
    }

    .about-features-list {
      list-style: none;
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .about-features-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 15px;
      color: var(--text-muted);
    }

    .about-check {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
      font-weight: 800;
      font-size: 13px;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* 服务矩阵卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(236, 72, 153, 0.12));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      margin-bottom: 16px;
      font-weight: bold;
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

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

    .service-subtag {
      font-size: 12px;
      padding: 2px 8px;
      background: #f1f5f9;
      color: #475569;
      border-radius: 4px;
      font-weight: 500;
    }

    /* 一站式制作特写 */
    .production-showcase {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .prod-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .prod-box h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .prod-box p {
      font-size: 14.5px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.65;
    }

    /* 对比评测规范 (五星 9.9分) */
    .eval-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
      overflow: hidden;
      padding: 36px;
    }

    .eval-header-summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 28px;
      margin-bottom: 28px;
      border-bottom: 1px solid #e2e8f0;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-number {
      font-size: 48px;
      font-weight: 900;
      color: #4f46e5;
      line-height: 1;
    }

    .score-meta {
      display: flex;
      flex-direction: column;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .score-text {
      font-size: 13.5px;
      color: var(--text-muted);
      font-weight: 600;
    }

    .eval-table-wrapper {
      width: 100%;
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 620px;
    }

    .eval-table th, .eval-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 14px;
    }

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

    .eval-table td.highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 600;
      color: #4f46e5;
    }

    /* Token 比价卡片 */
    .token-table-wrapper {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

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

    .token-table th, .token-table td {
      padding: 16px 20px;
      font-size: 14px;
      border-bottom: 1px solid #f1f5f9;
    }

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

    .price-tag {
      font-weight: 800;
      color: #ec4899;
    }

    /* 案例中心 */
    .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 #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

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

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

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

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .case-body {
      padding: 20px;
    }

    .case-title {
      font-size: 16.5px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .case-info {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 标准流程 4 步 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .process-step {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }

    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      margin-bottom: 14px;
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 用户评论 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: normal;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* FAQ 折叠 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-item.active {
      border-color: #cbd5e1;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 15.5px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 18px;
      font-weight: 300;
      transition: transform 0.2s ease;
      color: var(--text-light);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

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

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 需求匹配与表单 */
    .form-section-inner {
      max-width: 800px;
      margin: 0 auto;
      background: #ffffff;
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
    }

    .demand-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

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

    .form-label {
      display: block;
      font-size: 13.5px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background: #f8fafc;
      transition: all 0.2s ease;
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
    }

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

    /* 行业资讯文章外链与 shortcode */
    .articles-block {
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      margin-bottom: 24px;
    }

    .article-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }

    .article-link-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      font-size: 13px;
      color: var(--text-muted);
      transition: all 0.2s;
    }

    .article-link-item:hover {
      background: rgba(79, 70, 229, 0.05);
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.06) 0%, rgba(236, 72, 153, 0.06) 100%);
      border: 1px solid rgba(236, 72, 153, 0.2);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
    }

    .partner-content h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .partner-content p {
      font-size: 14.5px;
      color: var(--text-muted);
      max-width: 650px;
    }

    /* 页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 60px 0 30px;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13.5px;
    }

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

    .qr-box {
      display: flex;
      flex-direction: column;
      gap: 8px;
      align-items: flex-start;
    }

    .qr-box img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      display: block;
    }

    .qr-box span {
      font-size: 12px;
      color: var(--text-light);
    }

    .friend-links-area {
      padding-top: 24px;
      border-top: 1px solid #f1f5f9;
      margin-bottom: 24px;
      font-size: 13px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 8px;
    }

    .friend-links-list a {
      color: var(--text-light);
      padding: 2px 6px;
      border-radius: 4px;
      background: #f8fafc;
    }

    .friend-links-list a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.06);
    }

    .footer-bottom {
      text-align: center;
      font-size: 13px;
      color: var(--text-light);
      padding-top: 20px;
      border-top: 1px solid #f1f5f9;
    }

    /* 悬浮工具栏 */
    .float-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 99;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 18px;
      transition: all 0.2s;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid, .reviews-grid, .case-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid #e2e8f0;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        padding: 16px 0;
      }

      .nav-links.show {
        display: flex;
      }

      .mobile-menu-btn {
        display: block;
      }

      .hero-title {
        font-size: 28px;
      }

      .about-grid, .production-showcase {
        grid-template-columns: 1fr;
      }

      .services-grid, .reviews-grid, .case-gallery-grid, .process-timeline {
        grid-template-columns: 1fr;
      }

      .demand-form {
        grid-template-columns: 1fr;
      }

      .form-group-full {
        grid-column: span 1;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .form-section-inner {
        padding: 24px;
      }
    }