:root {
      --primary: #e60067;
      --primary-hover: #c40057;
      --primary-light: #fff0f5;
      --primary-gradient: linear-gradient(135deg, #ff2a85 0%, #e60067 50%, #b8004f 100%);
      --accent: #ff4d94;
      --accent-soft: #ffe4ee;
      --text-main: #1f2429;
      --text-sub: #555e68;
      --text-muted: #8c96a4;
      --bg-page: #faf9fb;
      --bg-card: #ffffff;
      --border-color: #f1d7e2;
      --border-light: #fcebf2;
      --shadow-sm: 0 4px 12px rgba(230, 0, 103, 0.06);
      --shadow-md: 0 8px 24px rgba(230, 0, 103, 0.1);
      --shadow-lg: 0 16px 40px rgba(230, 0, 103, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --max-width: 1200px;
      --transition: all 0.28s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

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

    .brand-logo-wrap {
      max-height: 42px;
      display: flex;
      align-items: center;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-item a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      display: block;
    }

    .nav-item a:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(230, 0, 103, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 0, 103, 0.4);
    }

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

    .btn-outline:hover {
      background: var(--primary-light);
    }

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

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

    /* 首屏 Hero */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 80% 20%, #ffeaf2 0%, rgba(255,255,255,0) 60%),
                  radial-gradient(circle at 20% 80%, #fff2f7 0%, rgba(255,255,255,0) 60%),
                  #ffffff;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--accent-soft);
      color: var(--primary);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 16px;
      border: 1px solid var(--border-color);
    }

    .hero-title {
      font-size: 2.2rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

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

    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      margin-bottom: 28px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }

    .hero-cta-group .btn-main-action {
      padding: 14px 32px;
      font-size: 1.05rem;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .hero-tag-item {
      font-size: 0.8rem;
      background: #f8f9fa;
      border: 1px solid #eaecee;
      padding: 4px 10px;
      border-radius: 6px;
      color: var(--text-sub);
    }

    /* Hero 右侧数据展示面板 (纯CSS构建) */
    .hero-display-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .hero-display-card::before {
      content: "";
      position: absolute;
      top: -1px;
      left: 30px;
      right: 30px;
      height: 3px;
      background: var(--primary-gradient);
      border-radius: 3px 3px 0 0;
    }

    .display-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-light);
    }

    .display-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .display-status {
      font-size: 0.8rem;
      color: #00a854;
      background: #e6f7ef;
      padding: 3px 10px;
      border-radius: 20px;
      font-weight: 600;
    }

    .stats-matrix {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    .matrix-item {
      background: var(--primary-light);
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #f9dbe8;
    }

    .matrix-val {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .matrix-lbl {
      font-size: 0.8rem;
      color: var(--text-sub);
      margin-top: 4px;
    }

    .supported-models-marquee {
      background: #fdfafb;
      padding: 12px;
      border-radius: var(--radius-sm);
      border: 1px dashed var(--border-color);
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    .marquee-title {
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

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

    .model-pill {
      background: #ffffff;
      border: 1px solid #edd5e0;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      color: var(--text-main);
    }

    /* 通用Section */
    .section-wrap {
      padding: 70px 0;
      border-bottom: 1px solid var(--border-light);
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-subtitle {
      color: var(--primary);
      font-size: 0.9rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }

    .section-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    /* 平台介绍 */
    .platform-intro-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .intro-columns {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .intro-col {
      padding: 20px;
      border-radius: var(--radius-md);
      background: #fffbfe;
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }

    .intro-col:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-sm);
      border-color: var(--border-color);
    }

    .intro-col-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .intro-col-text {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 服务能力/应用场景矩阵 */
    .grid-cards {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .card-icon-title {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .card-badge-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .card-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .card-body-text {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .card-meta-tag {
      font-size: 0.75rem;
      color: var(--primary);
      background: var(--accent-soft);
      padding: 3px 10px;
      border-radius: 12px;
      align-self: flex-start;
      font-weight: 600;
    }

    /* 标准制作流程步骤 */
    .steps-chain {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .step-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .step-number {
      font-size: 1.8rem;
      font-weight: 900;
      color: #ffd1e4;
      line-height: 1;
      margin-bottom: 8px;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* 对比评测表格与卡片 */
    .compare-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .rating-header {
      background: var(--primary-light);
      border: 1px solid #f9dbe8;
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
    }

    .rating-stat-group {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .rating-score {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
    }

    .rating-stars {
      color: #ff9900;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

    .rating-tip {
      font-size: 0.95rem;
      color: var(--text-sub);
    }

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

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

    .compare-table th, .compare-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.9rem;
    }

    .compare-table th {
      background: #fdf5f8;
      color: var(--text-main);
      font-weight: 700;
    }

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

    .highlight-col {
      color: var(--primary);
      font-weight: 700;
      background: #fff7fa;
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .case-media-container {
      width: 100%;
      aspect-ratio: 16/9;
      background: #f0f2f5;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-summary {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .case-tags-row {
      display: flex;
      gap: 8px;
    }

    .case-tag {
      font-size: 0.75rem;
      background: var(--primary-light);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 宣传图画廊展示区 */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .gallery-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .gallery-item img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.9rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
      position: relative;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-light);
      padding-top: 12px;
    }

    .review-avatar-char {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
    }

    .user-name {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-role {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-question {
      padding: 16px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
      font-size: 0.98rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--text-sub);
      font-size: 0.9rem;
      line-height: 1.6;
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
    }

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

    /* 需求表单与联系我们 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .contact-detail-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .contact-detail-item strong {
      color: var(--primary);
      min-width: 80px;
    }

    .qr-container {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 20px;
      background: var(--primary-light);
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #fbdbe9;
    }

    .qr-image-box {
      width: 100px;
      height: 100px;
      background: #ffffff;
      padding: 4px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-image-box img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .qr-desc h4 {
      font-size: 1rem;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .qr-desc p {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    .form-group {
      margin-bottom: 16px;
    }

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

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #dcdfe6;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      transition: var(--transition);
      background: #ffffff;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(230, 0, 103, 0.1);
    }

    .form-textarea {
      resize: vertical;
      min-height: 90px;
    }

    /* 资讯与文章列表 */
    .news-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 12px;
      margin-top: 16px;
    }

    .article-link-item {
      display: block;
      padding: 10px 14px;
      background: #fafbfc;
      border: 1px solid #eaeaea;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: var(--text-sub);
      transition: var(--transition);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .article-link-item:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 20px;
      color: var(--text-sub);
      font-size: 0.88rem;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 30px;
    }

    .footer-links-col h4 {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 12px;
      font-weight: 700;
    }

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

    .footer-links-col a {
      color: var(--text-sub);
    }

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

    .friend-links-section {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      margin-bottom: 20px;
    }

    .friend-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    .friend-links-list a {
      color: var(--text-muted);
      font-size: 0.8rem;
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 16px;
      text-align: center;
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
    }

    /* 浮动客服入口 */
    .floating-contact {
      position: fixed;
      right: 20px;
      bottom: 80px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      box-shadow: 0 4px 15px rgba(230, 0, 103, 0.35);
      cursor: pointer;
      border: none;
      transition: var(--transition);
    }

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

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .intro-columns, .steps-chain, .reviews-grid, .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid, .contact-grid, .footer-top {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .intro-columns, .steps-chain, .reviews-grid, .gallery-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.7rem;
      }
      .rating-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }