:root {
      --bg-main: #fcfbfa;
      --bg-alt: #f4efe6;
      --bg-card: #ffffff;
      --text-dark: #1e1b18;
      --text-muted: #5c554e;
      --text-light: #877e74;
      --doodle-yellow: #ffd000;
      --doodle-pink: #ff5e7e;
      --doodle-cyan: #00d2d3;
      --doodle-purple: #a55eea;
      --doodle-green: #26de81;
      --doodle-orange: #ff9f43;
      --border-thick: 3px solid #1e1b18;
      --border-thin: 2px solid #1e1b18;
      --shadow-hard: 5px 5px 0px #1e1b18;
      --shadow-hard-sm: 3px 3px 0px #1e1b18;
      --shadow-hard-lg: 8px 8px 0px #1e1b18;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      background-color: var(--bg-main);
      color: var(--text-dark);
      font-family: var(--font-family);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(var(--text-light) 0.75px, transparent 0.75px),
        radial-gradient(var(--text-light) 0.75px, var(--bg-main) 0.75px);
      background-size: 30px 30px;
      background-position: 0 0, 15px 15px;
      background-attachment: fixed;
    }

    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }

    /* 顶部导航 */
    header.site-header {
      background: #ffffff;
      border-bottom: var(--border-thick);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 0 rgba(30, 27, 24, 0.05);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--text-dark);
    }

    .brand-logo img {
      max-height: 44px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.5px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      text-decoration: none;
      color: var(--text-dark);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover {
      background: var(--doodle-yellow);
      transform: translateY(-2px);
    }

    .nav-action {
      margin-left: 20px;
    }

    .btn-doodle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-weight: 800;
      font-size: 0.95rem;
      text-decoration: none;
      color: var(--text-dark);
      background: var(--doodle-yellow);
      border: var(--border-thin);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-hard-sm);
      cursor: pointer;
      transition: all 0.15s ease;
    }

    .btn-doodle:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px #1e1b18;
    }

    .btn-doodle:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0px #1e1b18;
    }

    .btn-doodle.primary {
      background: var(--doodle-pink);
      color: #ffffff;
    }

    .btn-doodle.cyan {
      background: var(--doodle-cyan);
    }

    .btn-doodle.purple {
      background: var(--doodle-purple);
      color: #ffffff;
    }

    .btn-doodle.lg {
      padding: 14px 32px;
      font-size: 1.15rem;
    }

    /* 移动端菜单切换按钮 */
    .menu-toggle {
      display: none;
      background: none;
      border: var(--border-thin);
      padding: 6px 10px;
      font-size: 1.2rem;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-hard-sm);
      cursor: pointer;
    }

    /* 通用章节规范 */
    section.section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .badge-doodle {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      border: var(--border-thin);
      border-radius: 20px;
      box-shadow: var(--shadow-hard-sm);
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-dark);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* 首屏 Hero (无图) */
    .hero-section {
      padding: 70px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tag {
      background: var(--doodle-cyan);
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: linear-gradient(120deg, var(--doodle-yellow) 0%, var(--doodle-yellow) 100%);
      background-repeat: no-repeat;
      background-size: 100% 35%;
      background-position: 0 88%;
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 20px;
    }

    .stat-card {
      background: var(--bg-card);
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-hard);
      text-align: center;
      transition: transform 0.2s;
    }

    .stat-card:hover {
      transform: translateY(-4px);
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--text-dark);
      display: block;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 平台矩阵标签条 */
    .model-strip {
      background: #ffffff;
      border-top: var(--border-thick);
      border-bottom: var(--border-thick);
      padding: 24px 0;
      overflow: hidden;
    }

    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      align-items: center;
    }

    .model-tag {
      background: var(--bg-main);
      border: var(--border-thin);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 800;
      box-shadow: 2px 2px 0px #1e1b18;
      transition: transform 0.15s;
    }

    .model-tag:hover {
      background: var(--doodle-yellow);
      transform: translateY(-2px);
    }

    /* 平台介绍 */
    .about-box {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-hard-lg);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.8;
    }

    .about-features {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .about-features li {
      font-weight: 700;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-features li::before {
      content: "★";
      color: var(--doodle-pink);
    }

    .about-highlight-card {
      background: var(--bg-alt);
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-hard);
      text-align: center;
    }

    .highlight-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--doodle-pink);
      line-height: 1;
      margin: 10px 0;
    }

    /* AIGC 服务能力网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-hard);
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: var(--shadow-hard-lg);
    }

    .service-card-top {
      margin-bottom: 16px;
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border: var(--border-thin);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 900;
      margin-bottom: 14px;
      box-shadow: var(--shadow-hard-sm);
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .service-tag {
      margin-top: 14px;
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      background: var(--bg-alt);
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid #1e1b18;
    }

    /* 行业方案 & 素材图展示 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .solution-card {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-hard);
    }

    .media-container {
      width: 100%;
      background: #eee;
      border-bottom: var(--border-thick);
      overflow: hidden;
    }

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

    .solution-body {
      padding: 24px;
    }

    .solution-title {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .solution-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

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

    .step-card {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-hard);
      position: relative;
    }

    .step-num {
      position: absolute;
      top: -16px;
      left: 16px;
      background: var(--doodle-yellow);
      border: var(--border-thin);
      font-weight: 900;
      font-size: 1rem;
      padding: 2px 10px;
      border-radius: 20px;
      box-shadow: 2px 2px 0px #1e1b18;
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-top: 10px;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 评测对比表格 */
    .table-container {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-hard-lg);
      overflow-x: auto;
    }

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 2px solid #e2ded8;
      font-size: 0.95rem;
    }

    .compare-table th {
      font-weight: 900;
      background: var(--bg-alt);
      border-bottom: var(--border-thick);
    }

    .compare-table tr:hover td {
      background: #faf8f5;
    }

    .highlight-cell {
      background: rgba(255, 208, 0, 0.15);
      font-weight: 800;
      color: #000;
    }

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

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

    .review-stars {
      color: var(--doodle-orange);
      font-size: 1.1rem;
      margin-bottom: 12px;
    }

    .review-content {
      font-size: 0.92rem;
      color: var(--text-dark);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: italic;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 2px dashed #e2ded8;
      padding-top: 12px;
    }

    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: var(--border-thin);
      background: var(--doodle-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.9rem;
    }

    .review-info h4 {
      font-size: 0.95rem;
      font-weight: 800;
    }

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

    /* FAQ 折叠面板 (不少于10条) */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-hard-sm);
      overflow: hidden;
      transition: all 0.2s;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-question:hover {
      background: var(--bg-alt);
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 900;
      transition: transform 0.2s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: var(--bg-main);
      border-top: 1px solid #1e1b18;
    }

    .faq-answer p {
      padding: 18px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 资讯与百科区 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .article-box {
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-hard);
    }

    .article-box h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .article-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-list li a {
      text-decoration: none;
      color: var(--text-dark);
      font-size: 0.92rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 6px 0;
      border-bottom: 1px dashed #e2ded8;
      transition: color 0.15s;
    }

    .article-list li a:hover {
      color: var(--doodle-pink);
      font-weight: 700;
    }

    /* 表单与联系模块 */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      background: #ffffff;
      border: var(--border-thick);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-hard-lg);
    }

    .contact-info h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .contact-info p {
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .contact-items {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
    }

    .contact-qr-wrapper {
      display: flex;
      align-items: center;
      gap: 20px;
      background: var(--bg-alt);
      padding: 16px;
      border: var(--border-thin);
      border-radius: var(--radius-md);
      width: fit-content;
    }

    .contact-qr-wrapper img {
      width: 90px;
      height: 90px;
      border: var(--border-thin);
      border-radius: var(--radius-sm);
      object-fit: cover;
    }

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

    .form-group label {
      display: block;
      font-weight: 800;
      font-size: 0.9rem;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: var(--border-thin);
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-size: 0.95rem;
      background: var(--bg-main);
      transition: all 0.15s;
    }

    .form-control:focus {
      outline: none;
      background: #ffffff;
      box-shadow: var(--shadow-hard-sm);
      border-color: #000;
    }

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

    /* 友情链接与页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: var(--border-thick);
      padding: 50px 0 30px;
      margin-top: 40px;
    }

    .footer-links-box {
      border-bottom: 2px solid #e2ded8;
      padding-bottom: 24px;
      margin-bottom: 24px;
    }

    .footer-links-title {
      font-weight: 800;
      font-size: 0.95rem;
      margin-bottom: 12px;
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links a {
      text-decoration: none;
      color: var(--text-muted);
      font-size: 0.9rem;
      font-weight: 600;
      transition: color 0.15s;
    }

    .friend-links a:hover {
      color: var(--text-dark);
      text-decoration: underline;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 浮动组件与返回顶部 */
    .float-widgets {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--doodle-yellow);
      border: var(--border-thin);
      border-radius: 50%;
      box-shadow: var(--shadow-hard-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      cursor: pointer;
      text-decoration: none;
      color: var(--text-dark);
      transition: all 0.15s;
    }

    .float-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0px #1e1b18;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .services-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-box, .contact-container, .solutions-grid {
        grid-template-columns: 1fr;
      }
      .hero-stat-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: var(--border-thick);
        flex-direction: column;
        padding: 20px;
        display: none;
        box-shadow: var(--shadow-hard);
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 8px;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-action {
        margin-left: 0;
        margin-top: 14px;
        width: 100%;
      }
      .nav-action a {
        width: 100%;
      }
      .hero-title {
        font-size: 2rem;
      }
      .services-grid, .reviews-grid, .steps-wrapper, .articles-grid {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .about-features {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }