:root {
      --primary: #0d9488;
      --primary-dark: #0f766e;
      --primary-light: #ccfbf1;
      --secondary: #06b6d4;
      --neutral-dark: #0f172a;
      --neutral-body: #334155;
      --neutral-light: #f8fafc;
      --neutral-border: #e2e8f0;
      --accent: #2dd4bf;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font-sans);
      color: var(--neutral-dark);
      background-color: #ffffff;
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.3s;
    }

    a:hover {
      color: var(--primary-dark);
    }

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

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 导航栏 */
    header {
      background-color: rgba(255, 255, 255, 0.95);
      border-bottom: 1px solid var(--neutral-border);
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(8px);
    }

    .nav-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-area img {
      height: 40px;
      width: auto;
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .nav-links {
      display: flex;
      gap: 20px;
      align-items: center;
      list-style: none;
    }

    .nav-links a {
      color: var(--neutral-body);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 5px 10px;
      border-radius: 4px;
      transition: all 0.3s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background-color: var(--neutral-light);
    }

    .nav-btn {
      display: inline-block;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff !important;
      padding: 8px 18px !important;
      border-radius: 50px;
      font-weight: 600;
      box-shadow: 0 4px 6px -1px rgba(13, 148, 136, 0.2);
    }

    .nav-btn:hover {
      box-shadow: 0 10px 15px -3px rgba(13, 148, 136, 0.3);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--neutral-dark);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 区域共用 */
    section {
      padding: 80px 0;
      position: relative;
    }

    .section-bg-light {
      background-color: var(--neutral-light);
    }

    .section-title-area {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-title-area h2 {
      font-size: 2.2rem;
      color: var(--neutral-dark);
      font-weight: 700;
      position: relative;
      display: inline-block;
      padding-bottom: 12px;
    }

    .section-title-area h2::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 2px;
    }

    .section-subtitle {
      color: var(--neutral-body);
      font-size: 1.1rem;
      margin-top: 15px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 按钮基础 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      box-shadow: 0 4px 10px rgba(13, 148, 136, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 15px rgba(13, 148, 136, 0.4);
      color: #ffffff;
    }

    .btn-outline {
      border: 2px solid var(--primary);
      color: var(--primary);
      background: transparent;
    }

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

    /* 1. 首页 (Hero) - 无图、渐变背景设计 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(13, 148, 136, 0.08) 0%, transparent 50%),
                  var(--neutral-light);
      padding: 100px 0 120px;
      text-align: center;
    }

    .hero-content {
      max-width: 850px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      background-color: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: 50px;
      margin-bottom: 25px;
      border: 1px solid rgba(13, 148, 136, 0.2);
    }

    .hero-content h1 {
      font-size: 3rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--neutral-dark);
      margin-bottom: 25px;
      letter-spacing: -0.5px;
    }

    .hero-content h1 span {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-description {
      font-size: 1.2rem;
      color: var(--neutral-body);
      margin-bottom: 40px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 45px;
    }

    /* 数据指标卡片 */
    .stats-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .stat-card {
      background-color: #ffffff;
      padding: 25px 20px;
      border-radius: 12px;
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
      border: 1px solid var(--neutral-border);
      transition: transform 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-5px);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 5px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--neutral-body);
      font-weight: 500;
    }

    /* 2. 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }

    .about-info h3 {
      font-size: 1.8rem;
      color: var(--neutral-dark);
      margin-bottom: 20px;
    }

    .about-info p {
      color: var(--neutral-body);
      margin-bottom: 20px;
      font-size: 1rem;
    }

    .about-features {
      list-style: none;
    }

    .about-features li {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      color: var(--neutral-dark);
      font-weight: 550;
    }

    .about-features li::before {
      content: '✓';
      color: var(--primary);
      font-weight: bold;
      background-color: var(--primary-light);
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
    }

    .about-brand-box {
      background: linear-gradient(135deg, var(--neutral-light), rgba(6, 182, 212, 0.05));
      border: 1.5px dashed var(--primary);
      border-radius: 16px;
      padding: 40px;
      text-align: center;
    }

    .brand-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    /* 3. 全平台AIGC服务体系 */
    .platform-logos {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .platform-tag {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      padding: 8px 16px;
      border-radius: 6px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--neutral-dark);
      transition: all 0.2s ease;
    }

    .platform-tag:hover {
      border-color: var(--primary);
      background-color: var(--primary-light);
      color: var(--primary-dark);
    }

    .service-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }

    .service-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      padding: 30px;
      transition: all 0.3s ease;
    }

    .service-card:hover {
      box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.08);
      transform: translateY(-5px);
      border-color: var(--primary);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: bold;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.3rem;
      margin-bottom: 12px;
      color: var(--neutral-dark);
    }

    .service-card p {
      color: var(--neutral-body);
      font-size: 0.95rem;
    }

    /* 4. 全自动AIGC制作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 25px;
      position: relative;
    }

    .flow-card {
      background-color: #ffffff;
      border-radius: 12px;
      padding: 30px 20px;
      text-align: center;
      border: 1px solid var(--neutral-border);
      position: relative;
    }

    .flow-step-num {
      position: absolute;
      top: -15px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      border: 3px solid #ffffff;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .flow-card h4 {
      font-size: 1.15rem;
      margin: 15px 0 10px;
      color: var(--neutral-dark);
    }

    .flow-card p {
      font-size: 0.875rem;
      color: var(--neutral-body);
    }

    /* 5. 全行业解决方案 */
    .solution-tabs {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 35px;
    }

    .sol-tab {
      padding: 10px 22px;
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 50px;
      cursor: pointer;
      font-weight: 500;
      color: var(--neutral-body);
      transition: all 0.3s ease;
    }

    .sol-tab.active, .sol-tab:hover {
      background-color: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    .solution-content {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 40px;
      box-shadow: 0 4px 20px -2px rgba(0,0,0,0.03);
    }

    .sol-detail {
      display: none;
    }

    .sol-detail.active {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .sol-text h3 {
      font-size: 1.6rem;
      color: var(--neutral-dark);
      margin-bottom: 15px;
    }

    .sol-text p {
      color: var(--neutral-body);
      margin-bottom: 20px;
    }

    .sol-list {
      list-style: none;
    }

    .sol-list li {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .sol-list li::before {
      content: "•";
      color: var(--secondary);
      font-size: 1.5rem;
    }

    .sol-metrics {
      background-color: var(--neutral-light);
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--neutral-border);
    }

    .sol-metric-item {
      margin-bottom: 20px;
    }

    .sol-metric-item:last-child {
      margin-bottom: 0;
    }

    .sol-metric-val {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .sol-metric-lbl {
      font-size: 0.9rem;
      color: var(--neutral-body);
    }

    /* 6. 全国服务网络 & 7. 标准化服务全流程 & 8. 技术标准 */
    .tech-network-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .tn-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      padding: 30px;
    }

    .tn-card h3 {
      font-size: 1.3rem;
      margin-bottom: 20px;
      color: var(--neutral-dark);
      border-bottom: 2px solid var(--primary-light);
      padding-bottom: 10px;
    }

    .tn-list {
      list-style: none;
    }

    .tn-list li {
      margin-bottom: 15px;
      padding-left: 20px;
      position: relative;
    }

    .tn-list li::before {
      content: "▪";
      position: absolute;
      left: 0;
      color: var(--primary);
    }

    .tn-list li strong {
      display: block;
      color: var(--neutral-dark);
      font-size: 0.95rem;
    }

    .tn-list li span {
      color: var(--neutral-body);
      font-size: 0.85rem;
    }

    /* 9. 客户案例中心 (包含横版/方版素材) */
    .case-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }

    .case-main-column {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .case-item {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: row;
    }

    .case-img-container {
      width: 50%;
      overflow: hidden;
    }

    .case-img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .case-item:hover .case-img-container img {
      transform: scale(1.05);
    }

    .case-info {
      width: 50%;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
    }

    .case-info h4 {
      font-size: 1.3rem;
      color: var(--neutral-dark);
      margin-bottom: 10px;
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--neutral-body);
      margin-bottom: 15px;
    }

    .case-side-column {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .case-side-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      overflow: hidden;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .case-side-img {
      height: 200px;
      overflow: hidden;
    }

    .case-side-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-side-info {
      padding: 20px;
    }

    /* 10. 对比评测 (表格与评分) */
    .compare-container {
      background-color: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--neutral-border);
      padding: 40px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    }

    .compare-header {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 40px;
      border-bottom: 1px solid var(--neutral-border);
      padding-bottom: 30px;
      margin-bottom: 30px;
      align-items: center;
    }

    .rating-box {
      background: linear-gradient(135deg, var(--neutral-light), rgba(13, 148, 136, 0.05));
      border: 1px solid var(--primary-light);
      border-radius: 12px;
      padding: 25px;
      text-align: center;
    }

    .rating-val {
      font-size: 3rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.5rem;
      margin: 10px 0;
    }

    .compare-table-wrapper {
      overflow-x: auto;
    }

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

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

    .compare-table th {
      background-color: var(--neutral-light);
      font-weight: 700;
      color: var(--neutral-dark);
    }

    .compare-table tr:hover {
      background-color: rgba(248, 250, 252, 0.5);
    }

    .badge-high {
      background-color: var(--primary-light);
      color: var(--primary-dark);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* 11. 智能需求匹配 & 12. Token比价参考 */
    .match-price-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }

    .price-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 30px;
    }

    .price-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .price-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 12px;
      border-bottom: 1px dotted var(--neutral-border);
    }

    .price-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .price-name {
      font-weight: 600;
      color: var(--neutral-dark);
    }

    .price-cost {
      color: var(--primary-dark);
      font-weight: 700;
    }

    .match-box {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 30px;
    }

    .match-options {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 15px;
      margin-top: 20px;
    }

    .match-opt-btn {
      border: 1.5px solid var(--neutral-border);
      background-color: #ffffff;
      padding: 15px;
      border-radius: 8px;
      text-align: left;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .match-opt-btn:hover, .match-opt-btn.active {
      border-color: var(--primary);
      background-color: var(--primary-light);
    }

    .match-opt-btn strong {
      display: block;
      color: var(--neutral-dark);
      font-size: 0.95rem;
      margin-bottom: 4px;
    }

    .match-opt-btn span {
      font-size: 0.8rem;
      color: var(--neutral-body);
    }

    /* 13. 职业技术培训 & 14. 人工智能培训 */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .train-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      padding: 30px;
      transition: all 0.3s ease;
    }

    .train-card:hover {
      box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      border-color: var(--secondary);
    }

    .train-tag {
      font-size: 0.75rem;
      background-color: var(--neutral-light);
      padding: 4px 8px;
      border-radius: 4px;
      font-weight: 600;
      color: var(--neutral-body);
      display: inline-block;
      margin-bottom: 15px;
    }

    .train-card h3 {
      font-size: 1.25rem;
      color: var(--neutral-dark);
      margin-bottom: 15px;
    }

    .train-meta {
      font-size: 0.85rem;
      color: var(--neutral-body);
      margin-bottom: 20px;
    }

    .train-meta div {
      margin-bottom: 5px;
    }

    /* 15. 帮助中心 & 16. 常见用户问题 FAQ */
    .faq-wrapper {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      padding: 20px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--neutral-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      color: var(--primary);
      transition: transform 0.3s;
    }

    .faq-item.active .faq-question::after {
      content: '-';
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: var(--neutral-light);
    }

    .faq-answer-content {
      padding: 20px;
      color: var(--neutral-body);
      font-size: 0.95rem;
      border-top: 1px solid var(--neutral-border);
    }

    /* 17. 常见问题自助排查 & 18. 网站术语百科 */
    .trouble-term-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
    }

    .term-box, .trouble-box {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 30px;
    }

    .term-list, .trouble-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
      margin-top: 20px;
    }

    .term-item dt, .trouble-item dt {
      font-weight: 700;
      color: var(--neutral-dark);
      font-size: 0.95rem;
      margin-bottom: 4px;
    }

    .term-item dd, .trouble-item dd {
      font-size: 0.875rem;
      color: var(--neutral-body);
      margin-left: 0;
    }

    /* 19. 行业资讯 / 知识库 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .article-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      padding: 25px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card h4 {
      font-size: 1.1rem;
      color: var(--neutral-dark);
      margin-bottom: 15px;
      line-height: 1.5;
    }

    .article-meta {
      font-size: 0.85rem;
      color: var(--neutral-body);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 客户评论卡片 (6条) */
    .testimonials-section {
      background-color: var(--neutral-light);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .review-card {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

    .review-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: var(--primary-light);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .review-info h5 {
      font-size: 0.95rem;
      color: var(--neutral-dark);
    }

    .review-info span {
      font-size: 0.8rem;
      color: var(--neutral-body);
    }

    .review-text {
      color: var(--neutral-body);
      font-size: 0.9rem;
      line-height: 1.6;
    }

    /* 20. 联系我们 (表单 & 二维码) */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: start;
    }

    .contact-form-box {
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 40px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--neutral-dark);
      font-size: 0.9rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid var(--neutral-border);
      border-radius: 8px;
      font-size: 1rem;
      font-family: inherit;
      color: var(--neutral-dark);
      transition: border-color 0.3s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
    }

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

    .contact-info-box {
      background-color: var(--neutral-light);
      border: 1px solid var(--neutral-border);
      border-radius: 16px;
      padding: 40px;
      text-align: center;
    }

    .qr-container {
      margin: 30px auto;
      max-width: 180px;
      padding: 15px;
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    }

    .qr-container img {
      width: 100%;
      height: auto;
    }

    .info-details {
      text-align: left;
      margin-top: 30px;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--neutral-body);
    }

    .info-item strong {
      color: var(--neutral-dark);
    }

    /* 页脚与友情链接 */
    footer {
      background-color: var(--neutral-dark);
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
      border-top: 1px solid rgba(255,255,255,0.05);
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.2rem;
      margin-bottom: 15px;
    }

    .footer-links h5, .footer-friend h5 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 20px;
      position: relative;
    }

    .footer-links ul {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      transition: color 0.3s;
    }

    .footer-links a:hover {
      color: #ffffff;
    }

    .friend-links-area {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friend-links-area a {
      color: #94a3b8;
      background-color: rgba(255,255,255,0.05);
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 0.8rem;
      transition: all 0.3s;
    }

    .friend-links-area a:hover {
      background-color: var(--primary);
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
    }

    /* 浮动组件与返回顶部 */
    .float-panel {
      position: fixed;
      right: 25px;
      bottom: 25px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 99;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
      transition: all 0.3s ease;
      position: relative;
    }

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

    .float-btn svg {
      width: 20px;
      height: 20px;
      fill: currentColor;
    }

    .float-btn-qr {
      position: absolute;
      right: 60px;
      bottom: 0;
      background-color: #ffffff;
      border: 1px solid var(--neutral-border);
      padding: 10px;
      border-radius: 8px;
      display: none;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      width: 140px;
    }

    .float-btn:hover .float-btn-qr {
      display: block;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .stats-container, .service-cards, .flow-steps, .tech-network-grid, .training-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-gallery {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #ffffff;
        border-bottom: 1px solid var(--neutral-border);
        padding: 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-content h1 {
        font-size: 2.2rem;
      }
      .about-grid, .sol-detail.active, .match-price-grid, .trouble-term-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .case-item {
        flex-direction: column;
      }
      .case-img-container, .case-info {
        width: 100%;
      }
      .stats-container, .service-cards, .flow-steps, .tech-network-grid, .training-grid, .reviews-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-wrapper {
        grid-template-columns: 1fr;
      }
      .compare-header {
        grid-template-columns: 1fr;
        text-align: center;
      }
    }