:root {
      --primary: #5c3cf6;
      --secondary: #ff3b69;
      --accent-yellow: #ffb800;
      --accent-cyan: #00d2d3;
      --accent-green: #10ac84;
      --bg-cream: #faf8f5;
      --bg-card: #ffffff;
      --text-main: #18191f;
      --text-muted: #535b62;
      --border-dark: #18191f;
      --border-light: #e6e3dd;
      --shadow-brutal: 4px 4px 0px #18191f;
      --shadow-brutal-hover: 6px 6px 0px #18191f;
      --radius: 12px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-cream);
      background-image: 
        radial-gradient(var(--border-light) 1.5px, transparent 1.5px),
        radial-gradient(var(--border-light) 1.5px, var(--bg-cream) 1.5px);
      background-size: 32px 32px;
      background-position: 0 0, 16px 16px;
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

    /* 涂鸦风徽章与按钮通用 */
    .graffiti-tag {
      display: inline-block;
      padding: 4px 12px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: 999px;
      font-weight: 800;
      font-size: 0.85rem;
      box-shadow: 2px 2px 0px var(--border-dark);
      transform: rotate(-1.5deg);
      margin-bottom: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-weight: 800;
      font-size: 1rem;
      border-radius: var(--radius);
      border: 2px solid var(--border-dark);
      text-decoration: none;
      cursor: pointer;
      transition: all 0.2s ease;
      position: relative;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: var(--shadow-brutal);
    }

    .btn-primary:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-brutal-hover);
      background-color: #4928e0;
      color: #ffffff;
    }

    .btn-accent {
      background-color: var(--accent-yellow);
      color: var(--text-main);
      box-shadow: var(--shadow-brutal);
    }

    .btn-accent:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-brutal-hover);
    }

    .btn-outline {
      background-color: #fff;
      color: var(--text-main);
      box-shadow: var(--shadow-brutal);
    }

    .btn-outline:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-brutal-hover);
      background-color: #f1f2f6;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(250, 248, 245, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 2px solid var(--border-dark);
      padding: 14px 0;
    }

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

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

    .brand-area .logo-container {
      max-width: 140px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-main);
      text-decoration: none;
    }

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

    .nav-links a {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 12px;
      border-radius: 6px;
      transition: background 0.2s;
    }

    .nav-links a:hover {
      background: rgba(92, 60, 246, 0.08);
      color: var(--primary);
    }

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

    .mobile-menu-btn {
      display: none;
      background: #fff;
      border: 2px solid var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      border-radius: 6px;
      padding: 6px 10px;
      font-weight: 800;
      cursor: pointer;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 70px 0 50px;
      position: relative;
    }

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

    .hero-content h1 {
      font-size: 2.7rem;
      line-height: 1.2;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-content h1 span.highlight {
      background: linear-gradient(120deg, rgba(255, 184, 0, 0.4) 0%, rgba(255, 59, 105, 0.3) 100%);
      padding: 0 6px;
      border-bottom: 4px solid var(--secondary);
    }

    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 28px;
      max-width: 580px;
    }

    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 30px;
    }

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

    .hero-badge {
      background: #fff;
      border: 2px solid var(--border-dark);
      padding: 4px 10px;
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 6px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* 首屏右侧纯 CSS/SVG 科技涂鸦展板 */
    .hero-visual-card {
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: 20px;
      padding: 24px;
      box-shadow: 8px 8px 0px var(--border-dark);
      position: relative;
      overflow: hidden;
    }

    .hero-visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px dashed var(--border-light);
      padding-bottom: 12px;
      margin-bottom: 16px;
    }

    .console-dots {
      display: flex;
      gap: 6px;
    }

    .console-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1.5px solid var(--border-dark);
    }

    .dot-red { background: #ff5f56; }
    .dot-yellow { background: #ffbd2e; }
    .dot-green { background: #27c93f; }

    .hero-metrics-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 16px;
    }

    .metric-card {
      background: #f7f9fa;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      padding: 12px;
      text-align: center;
    }

    .metric-val {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--primary);
    }

    .metric-label {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .model-tags-box {
      background: #fdf2f4;
      border: 2px solid var(--secondary);
      border-radius: 12px;
      padding: 14px;
      font-size: 0.85rem;
    }

    .model-tags-title {
      font-weight: 900;
      color: var(--secondary);
      margin-bottom: 8px;
    }

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

    .model-pill {
      background: #fff;
      border: 1px solid var(--border-dark);
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 700;
    }

    /* Section 通用规范 */
    section.page-section {
      padding: 60px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 40px;
    }

    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

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

    /* 卡片网格 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .card-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .graffiti-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-brutal);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .graffiti-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-brutal-hover);
    }

    .card-icon-wrap {
      width: 48px;
      height: 48px;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      background: var(--accent-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.25rem;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 16px;
    }

    .graffiti-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .graffiti-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 真实图片展示区 */
    .media-gallery-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 24px;
      align-items: center;
      margin-top: 30px;
    }

    .image-showcase-box {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 12px;
      box-shadow: var(--shadow-brutal);
    }

    .image-showcase-box img {
      width: 100%;
      height: auto;
      border-radius: 8px;
      display: block;
      border: 1px solid var(--border-light);
    }

    .banner-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .banner-strip .ai-page-image {
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      box-shadow: 3px 3px 0 var(--border-dark);
      transition: transform 0.2s;
    }

    .banner-strip .ai-page-image:hover {
      transform: scale(1.02);
    }

    /* 对比评测板块 */
    .review-score-panel {
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: 20px;
      padding: 30px;
      box-shadow: var(--shadow-brutal);
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

    .score-big-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-number {
      font-size: 3.8rem;
      font-weight: 900;
      line-height: 1;
      color: var(--secondary);
      background: #ffebee;
      border: 3px solid var(--border-dark);
      padding: 10px 20px;
      border-radius: 16px;
      box-shadow: 4px 4px 0 var(--border-dark);
    }

    .score-desc h4 {
      font-size: 1.4rem;
      font-weight: 900;
    }

    .star-rating {
      color: #ff9f1a;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-brutal);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.95rem;
    }

    .comparison-table th {
      background: #f1f2f6;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-dark);
    }

    .comparison-table tr:hover td {
      background-color: #fafbfc;
    }

    .badge-win {
      background: #e3faf3;
      color: #0ca678;
      font-weight: 800;
      padding: 4px 10px;
      border-radius: 6px;
      border: 1px solid #0ca678;
      display: inline-block;
    }

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

    .step-node {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px 20px;
      box-shadow: var(--shadow-brutal);
      position: relative;
    }

    .step-number {
      position: absolute;
      top: -14px;
      left: 18px;
      background: var(--accent-cyan);
      border: 2px solid var(--border-dark);
      color: var(--text-main);
      font-weight: 900;
      padding: 2px 10px;
      border-radius: 8px;
      font-size: 0.85rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* FAQ 折叠 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .faq-item {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-brutal);
      overflow: hidden;
      transition: all 0.2s;
    }

    .faq-question {
      padding: 16px 20px;
      font-weight: 800;
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #fff;
      user-select: none;
    }

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

    .faq-answer {
      display: none;
      padding: 0 20px 16px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
    }

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

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

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

    .comment-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-brutal);
    }

    .comment-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .author-avatar-badge {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      border: 2px solid var(--border-dark);
    }

    .author-meta h5 {
      font-size: 0.95rem;
      font-weight: 800;
    }

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

    /* 文章与外链 */
    .article-links-box {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-brutal);
    }

    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
      margin-top: 12px;
    }

    .article-links-list a {
      color: var(--primary);
      text-decoration: none;
      font-weight: 700;
      padding: 6px 14px;
      background: #f4f3ff;
      border: 1px solid var(--primary);
      border-radius: 6px;
      font-size: 0.9rem;
      transition: all 0.2s;
    }

    .article-links-list a:hover {
      background: var(--primary);
      color: #fff;
    }

    /* 表单与联系我们 */
    .contact-container {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 30px;
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: 20px;
      box-shadow: var(--shadow-brutal);
      padding: 36px;
    }

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

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

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      font-family: inherit;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(92, 60, 246, 0.2);
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 20px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      font-weight: 700;
    }

    .qrcode-box {
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      padding: 14px;
      background: #fff;
      display: inline-block;
      max-width: 170px;
      text-align: center;
      box-shadow: 3px 3px 0 var(--border-dark);
    }

    .qrcode-box img {
      max-width: 100%;
      height: auto;
      border-radius: 6px;
      display: block;
    }

    .qrcode-tip {
      font-size: 0.78rem;
      font-weight: 800;
      margin-top: 6px;
      color: var(--text-main);
    }

    /* 友情链接与页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: 2px solid var(--border-dark);
      padding: 40px 0 30px;
      margin-top: 40px;
    }

    .footer-links-group {
      margin-bottom: 24px;
      padding-bottom: 20px;
      border-bottom: 1px dashed var(--border-light);
    }

    .footer-links-title {
      font-weight: 800;
      font-size: 0.95rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .footer-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 600;
      transition: color 0.2s;
    }

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

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 浮动客服 */
    .floating-kefu {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      box-shadow: 4px 4px 0 var(--border-dark);
      padding: 8px 12px;
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      color: var(--text-main);
      font-weight: 800;
      font-size: 0.88rem;
      transition: all 0.2s ease;
    }

    .floating-kefu:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--border-dark);
    }

    .floating-dot {
      width: 10px;
      height: 10px;
      background: var(--accent-green);
      border-radius: 50%;
      box-shadow: 0 0 0 2px #fff;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .card-grid-3, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-grid-4, .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .media-gallery-grid {
        grid-template-columns: 1fr;
      }
      .banner-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        border-bottom: 2px solid var(--border-dark);
        padding: 16px 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .card-grid-3, .card-grid-4, .card-grid-2, .steps-wrapper, .faq-grid, .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .review-score-panel {
        flex-direction: column;
        text-align: center;
      }
      .score-big-box {
        flex-direction: column;
      }
      .banner-strip {
        grid-template-columns: 1fr 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }