:root {
      --primary-yellow: #fecb00;
      --primary-yellow-hover: #e5b700;
      --accent-black: #11141a;
      --dark-gray: #232733;
      --text-main: #1f2329;
      --text-muted: #646a73;
      --bg-light: #fffdf5;
      --bg-card: #ffffff;
      --border-color: #f0e6c8;
      --card-shadow: 0 10px 30px rgba(220, 180, 0, 0.08);
      --hover-shadow: 0 16px 36px rgba(220, 180, 0, 0.16);
      --transition-fast: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    ul, ol {
      list-style: none;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 253, 245, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--primary-yellow);
      transition: var(--transition-fast);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      height: 48px;
    }

    .brand-logo img {
      max-height: 42px;
      width: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      font-size: 0.96rem;
      font-weight: 600;
      color: var(--dark-gray);
      padding: 8px 14px;
      border-radius: 6px;
      transition: var(--transition-fast);
    }

    .nav-links a:hover {
      color: #000;
      background: var(--primary-yellow);
    }

    .nav-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: 700;
      border-radius: 8px;
      cursor: pointer;
      transition: var(--transition-fast);
      border: 2px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary-yellow);
      color: var(--accent-black);
      border-color: var(--primary-yellow);
      box-shadow: 0 4px 14px rgba(254, 203, 0, 0.35);
    }

    .btn-primary:hover {
      background-color: var(--primary-yellow-hover);
      border-color: var(--primary-yellow-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(254, 203, 0, 0.45);
    }

    .btn-outline {
      border-color: var(--accent-black);
      color: var(--accent-black);
      background: transparent;
    }

    .btn-outline:hover {
      background-color: var(--accent-black);
      color: #fff;
    }

    .mobile-menu-btn {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 3px;
      background-color: var(--accent-black);
      border-radius: 2px;
    }

    /* 首屏 Hero (无图片) */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(254, 203, 0, 0.22) 0%, rgba(255, 253, 245, 0) 70%),
                  radial-gradient(circle at 10% 80%, rgba(254, 203, 0, 0.15) 0%, rgba(255, 253, 245, 0) 60%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-inner {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background-color: #fff;
      border: 1px solid var(--primary-yellow);
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent-black);
      margin-bottom: 24px;
      box-shadow: 0 4px 12px rgba(254, 203, 0, 0.15);
    }

    .hero-badge-tag {
      background: var(--primary-yellow);
      padding: 2px 8px;
      border-radius: 20px;
      font-size: 0.75rem;
    }

    .hero-title {
      font-size: clamp(2.2rem, 4.5vw, 3.4rem);
      font-weight: 900;
      line-height: 1.25;
      color: var(--accent-black);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(180deg, transparent 65%, var(--primary-yellow) 65%);
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      padding: 28px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .stat-card-item {
      text-align: center;
      position: relative;
    }

    .stat-card-item:not(:last-child)::after {
      content: "";
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background-color: var(--border-color);
    }

    .stat-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--accent-black);
      margin-bottom: 4px;
    }

    .stat-num span {
      color: #e5b700;
      font-size: 1.4rem;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 通用章节样式 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: #946c00;
      background: rgba(254, 203, 0, 0.25);
      padding: 4px 12px;
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--accent-black);
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
    }

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

    .about-content h3 {
      font-size: 1.7rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--accent-black);
    }

    .about-content p {
      font-size: 1rem;
      color: #4b515d;
      margin-bottom: 24px;
    }

    .about-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 28px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark-gray);
    }

    .about-feature-item::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 22px;
      height: 22px;
      background: var(--primary-yellow);
      border-radius: 50%;
      font-size: 0.75rem;
      font-weight: 900;
      color: #000;
    }

    .about-media-box {
      background: #fff;
      padding: 16px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .about-media-box img {
      border-radius: 12px;
      width: 100%;
      object-fit: cover;
    }

    /* 聚合大模型矩阵 */
    .models-marquee-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 30px;
      box-shadow: var(--card-shadow);
    }

    .models-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .model-chip {
      padding: 8px 18px;
      background: #fffde8;
      border: 1px solid #ebd88a;
      border-radius: 8px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark-gray);
      transition: var(--transition-fast);
    }

    .model-chip:hover {
      background: var(--primary-yellow);
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(254, 203, 0, 0.3);
    }

    /* 服务与能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      padding: 32px 26px;
      border-radius: 14px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: var(--transition-fast);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary-yellow);
      opacity: 0;
      transition: var(--transition-fast);
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--hover-shadow);
      border-color: #ebd88a;
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon-label {
      display: inline-block;
      width: 48px;
      height: 48px;
      background: #fff8cb;
      border-radius: 10px;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      color: #946c00;
    }

    .service-card h4 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--accent-black);
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .service-tag-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      background: #f4f5f7;
      color: #555b68;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 流程步骤 */
    .process-steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-item {
      background: #ffffff;
      padding: 30px 24px;
      border-radius: 14px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .step-seq {
      font-size: 2.2rem;
      font-weight: 900;
      color: #f7dda4;
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-item h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--accent-black);
    }

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 评测与对比板块 */
    .compare-container {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(90deg, #fff9dc 0%, #ffffff 100%);
      padding: 24px 32px;
      border-radius: 12px;
      border-left: 6px solid var(--primary-yellow);
      margin-bottom: 30px;
      gap: 20px;
    }

    .rating-left h3 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--accent-black);
      margin-bottom: 6px;
    }

    .rating-left p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }

    .stars-view {
      font-size: 1.3rem;
      color: #ff9800;
    }

    .score-view {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--accent-black);
    }

    .score-full {
      font-size: 1.1rem;
      color: var(--text-muted);
      font-weight: 700;
    }

    .table-responsive {
      width: 100%;
      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 #f0e9d6;
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #faf7eb;
      font-weight: 800;
      color: var(--accent-black);
    }

    .compare-table td strong {
      color: #b78a00;
    }

    .highlight-col {
      background: #fffde8;
      font-weight: 700;
    }

    /* 案例中心 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      align-items: stretch;
    }

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

    .case-card-big .img-box {
      width: 100%;
      overflow: hidden;
    }

    .case-card-big img {
      width: 100%;
      transition: var(--transition-fast);
      object-fit: cover;
    }

    .case-card-big:hover img {
      transform: scale(1.02);
    }

    .case-info {
      padding: 24px;
    }

    .case-info h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--accent-black);
    }

    .case-info p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .case-side-list {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .case-side-item {
      background: #ffffff;
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      padding: 18px;
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .case-side-item .thumb {
      width: 120px;
      flex-shrink: 0;
      border-radius: 8px;
      overflow: hidden;
    }

    .case-side-item .thumb img {
      width: 100%;
      height: 90px;
      object-fit: cover;
    }

    .case-side-item h5 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--accent-black);
    }

    .case-side-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 客户评价板块 (6条评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      padding: 28px;
      border-radius: 14px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.94rem;
      color: #3e4450;
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f6eedb;
      padding-top: 16px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      background: var(--primary-yellow);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #000;
      font-size: 1rem;
    }

    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--accent-black);
    }

    .user-meta span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴板块 (10+ 条) */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition-fast);
    }

    .faq-question {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--accent-black);
      user-select: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.5rem;
      font-weight: 400;
      color: #ab8b00;
      transition: var(--transition-fast);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      background: #fffdf8;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      border-top-color: #f7eed8;
    }

    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 行业资讯 & 官方文章列表 */
    .articles-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .article-box {
      background: #ffffff;
      padding: 30px;
      border-radius: 14px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .article-box h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--accent-black);
      border-bottom: 2px solid var(--primary-yellow);
      padding-bottom: 10px;
      display: inline-block;
    }

    .article-link-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .article-link-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 14px;
      background: #fffef8;
      border: 1px solid #f6eedb;
      border-radius: 8px;
      transition: var(--transition-fast);
      font-size: 0.94rem;
      font-weight: 600;
    }

    .article-link-item:hover {
      background: #fff8cb;
      border-color: #ebd88a;
      transform: translateX(4px);
    }

    /* 宣传图画廊 */
    .promo-banner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .promo-banner-item {
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    /* 需求匹配与联络表单 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      padding: 40px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .contact-info-col h3 {
      font-size: 1.7rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--accent-black);
    }

    .contact-info-col p {
      font-size: 0.98rem;
      color: var(--text-muted);
      margin-bottom: 28px;
    }

    .contact-badge-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 30px;
    }

    .contact-badge-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      font-weight: 600;
    }

    .contact-badge-item span.icon-label {
      width: 36px;
      height: 36px;
      background: #fff6c0;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #835f00;
      font-size: 1rem;
    }

    .qr-card {
      display: flex;
      align-items: center;
      gap: 18px;
      padding: 16px;
      background: #fffef2;
      border: 1px solid #ebd88a;
      border-radius: 12px;
    }

    .qr-card img {
      width: 90px;
      height: 90px;
      border-radius: 8px;
      object-fit: contain;
      background: #fff;
    }

    .qr-card-info h5 {
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .qr-card-info p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    .form-col {
      background: #fffdf5;
      padding: 30px;
      border-radius: 12px;
      border: 1px solid #f2e7c4;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark-gray);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #d9d2be;
      border-radius: 8px;
      background: #fff;
      font-size: 0.95rem;
      color: var(--text-main);
      outline: none;
      transition: var(--transition-fast);
    }

    .form-control:focus {
      border-color: #d1a500;
      box-shadow: 0 0 0 3px rgba(254, 203, 0, 0.25);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 代理加盟政策条 */
    .agent-strip {
      background: linear-gradient(135deg, #fecb00 0%, #ffde59 100%);
      padding: 40px;
      border-radius: 16px;
      margin-top: 40px;
      color: #000;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .agent-strip-text h3 {
      font-size: 1.6rem;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .agent-strip-text p {
      font-size: 1rem;
      font-weight: 600;
      color: #3b3200;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #171a21;
      color: #c4c8d4;
      padding: 60px 0 30px;
      border-top: 4px solid var(--primary-yellow);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      padding-bottom: 40px;
      border-bottom: 1px solid #282d39;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 18px;
      position: relative;
    }

    .footer-col h5::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 24px;
      height: 3px;
      background: var(--primary-yellow);
    }

    .footer-links-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
    }

    .footer-links-list a {
      color: #a4aab9;
      transition: var(--transition-fast);
    }

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

    .footer-links-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.88rem;
    }

    .footer-links-inline a {
      color: #a4aab9;
      background: #222631;
      padding: 4px 10px;
      border-radius: 4px;
      transition: var(--transition-fast);
    }

    .footer-links-inline a:hover {
      color: #000;
      background: var(--primary-yellow);
    }

    .footer-bottom-bar {
      padding-top: 30px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.88rem;
      color: #7b8190;
    }

    .footer-bottom-bar a {
      color: #a4aab9;
    }

    .footer-bottom-bar a:hover {
      color: var(--primary-yellow);
    }

    /* 悬浮客服面板 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid var(--primary-yellow);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
      cursor: pointer;
      position: relative;
      transition: var(--transition-fast);
      font-weight: 800;
      font-size: 0.9rem;
      color: var(--accent-black);
    }

    .floating-btn:hover {
      background: var(--primary-yellow);
      transform: scale(1.08);
    }

    .floating-tooltip {
      position: absolute;
      right: 58px;
      top: 50%;
      transform: translateY(-50%);
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 10px;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
      white-space: nowrap;
      display: none;
      pointer-events: none;
    }

    .floating-tooltip img {
      width: 110px;
      height: 110px;
      display: block;
    }

    .floating-btn:hover .floating-tooltip {
      display: block;
    }

    /* 响应式断点控制 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .case-gallery-grid, .articles-container, .contact-form-layout {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 2px solid var(--primary-yellow);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 12px;
      }
      .mobile-menu-btn {
        display: flex;
      }
    }

    @media (max-width: 640px) {
      .services-grid, .process-steps-wrap, .reviews-grid, .promo-banner-grid {
        grid-template-columns: 1fr;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .stat-card-item:not(:last-child)::after {
        display: none;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .hero-section {
        padding: 50px 0 40px;
      }
      .section-wrap {
        padding: 50px 0;
      }
      .contact-form-layout {
        padding: 20px;
      }
      .form-col {
        padding: 16px;
      }
    }