:root {
      --bg-cream: #faf7ee;
      --bg-card: #ffffff;
      --ink-black: #18181b;
      --ink-sub: #4b5563;
      --border-dark: #1f2937;
      --color-yellow: #fde047;
      --color-pink: #f472b6;
      --color-cyan: #38bdf8;
      --color-lime: #a3e635;
      --color-purple: #c084fc;
      --color-orange: #fb923c;
      --shadow-graffiti: 4px 4px 0px var(--border-dark);
      --shadow-graffiti-lg: 6px 6px 0px var(--border-dark);
      --shadow-graffiti-hover: 2px 2px 0px var(--border-dark);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      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", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-cream);
      background-image: radial-gradient(var(--border-dark) 0.75px, transparent 0.75px);
      background-size: 24px 24px;
      color: var(--ink-black);
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(250, 247, 238, 0.95);
      border-bottom: 3px solid var(--border-dark);
      backdrop-filter: blur(8px);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      background: #fff;
      padding: 2px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .brand-title {
      font-size: 1.35rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-tag {
      background: var(--color-yellow);
      border: 2px solid var(--border-dark);
      padding: 2px 6px;
      font-size: 0.75rem;
      border-radius: 6px;
      font-weight: 800;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

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

    .nav-links li a {
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
      border: 2px solid transparent;
    }

    .nav-links li a:hover {
      background: var(--color-yellow);
      border-color: var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      transform: translateY(-2px);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      padding: 10px 20px;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-dark);
      cursor: pointer;
      box-shadow: var(--shadow-graffiti);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
      white-space: nowrap;
      text-align: center;
    }

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

    .btn:active {
      transform: translate(4px, 4px);
      box-shadow: 0 0 0 var(--border-dark);
    }

    .btn-primary {
      background: var(--color-yellow);
      color: var(--ink-black);
    }

    .btn-accent {
      background: var(--color-pink);
      color: #fff;
    }

    .btn-lime {
      background: var(--color-lime);
      color: var(--ink-black);
    }

    .btn-cyan {
      background: var(--color-cyan);
      color: var(--ink-black);
    }

    .menu-toggle {
      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: 900;
      cursor: pointer;
    }

    /* 移动端抽屉 */
    .mobile-nav-pane {
      display: none;
      position: absolute;
      top: 76px;
      left: 0;
      right: 0;
      background: var(--bg-cream);
      border-bottom: 3px solid var(--border-dark);
      padding: 16px 20px;
      box-shadow: 0 8px 0 rgba(0,0,0,0.05);
    }

    .mobile-nav-pane.active {
      display: block;
    }

    .mobile-nav-pane ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .mobile-nav-pane a {
      display: block;
      font-weight: 700;
      padding: 10px 14px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* Hero 首屏 - 无图片，纯代码绘制波普涂鸦科技感 */
    .hero-section {
      padding: 70px 0 50px;
      position: relative;
    }

    .hero-box {
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 56px 40px;
      box-shadow: 8px 8px 0 var(--border-dark);
      position: relative;
      overflow: hidden;
    }

    .hero-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 24px;
    }

    .graffiti-tag {
      background: var(--color-cyan);
      border: 2px solid var(--border-dark);
      box-shadow: 2px 2px 0 var(--border-dark);
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 800;
      border-radius: 20px;
      display: inline-block;
      transform: rotate(-1deg);
    }

    .graffiti-tag:nth-child(2) {
      background: var(--color-lime);
      transform: rotate(1.5deg);
    }

    .graffiti-tag:nth-child(3) {
      background: var(--color-pink);
      color: #fff;
      transform: rotate(-0.5deg);
    }

    .hero-h1 {
      font-size: clamp(2rem, 4.2vw, 3.4rem);
      font-weight: 950;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
      color: var(--ink-black);
    }

    .hero-h1 span.marker-highlight {
      background: linear-gradient(180deg, transparent 65%, var(--color-yellow) 65%);
      display: inline-block;
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--ink-sub);
      max-width: 880px;
      margin-bottom: 36px;
      font-weight: 500;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .btn-hero-main {
      font-size: 1.15rem;
      padding: 14px 34px;
      background: var(--color-yellow);
      border: 3px solid var(--border-dark);
      box-shadow: var(--shadow-graffiti-lg);
    }

    .btn-hero-sub {
      font-size: 1.05rem;
      padding: 14px 28px;
      background: #fff;
    }

    /* 纯 CSS 模拟视觉画板组件，首屏无图 */
    .hero-visual-board {
      background: var(--bg-cream);
      border: 2px dashed var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
    }

    .code-canvas-item {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 16px;
      box-shadow: 3px 3px 0 var(--border-dark);
      transition: transform 0.2s ease;
    }

    .code-canvas-item:hover {
      transform: translateY(-3px);
    }

    .canvas-title {
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .canvas-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      border: 1.5px solid var(--border-dark);
      display: inline-block;
    }

    .canvas-dot.c1 { background: var(--color-pink); }
    .canvas-dot.c2 { background: var(--color-cyan); }
    .canvas-dot.c3 { background: var(--color-lime); }
    .canvas-dot.c4 { background: var(--color-yellow); }

    .canvas-text {
      font-size: 0.85rem;
      color: var(--ink-sub);
    }

    /* 通用版块标题 */
    .section-wrap {
      padding: 60px 0;
    }

    .sec-header {
      margin-bottom: 40px;
      text-align: center;
      position: relative;
    }

    .sec-badge {
      display: inline-block;
      padding: 4px 14px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 800;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .sec-title {
      font-size: clamp(1.8rem, 3vw, 2.4rem);
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--ink-black);
      margin-bottom: 12px;
    }

    .sec-subtitle {
      font-size: 1rem;
      color: var(--ink-sub);
      max-width: 680px;
      margin: 0 auto;
    }

    /* 数据指标卡片 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-bottom: 40px;
    }

    .metric-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-graffiti);
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .metric-number {
      font-size: 2.6rem;
      font-weight: 950;
      line-height: 1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-weight: 800;
      font-size: 1rem;
      color: var(--ink-black);
      margin-bottom: 4px;
    }

    .metric-desc {
      font-size: 0.85rem;
      color: var(--ink-sub);
    }

    /* 模型墙 */
    .model-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      padding: 24px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-graffiti);
    }

    .model-chip {
      background: var(--bg-cream);
      border: 2px solid var(--border-dark);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 800;
      box-shadow: 2px 2px 0 var(--border-dark);
      transition: all 0.2s ease;
    }

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

    /* 场景卡片网格 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

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

    .feature-card:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-graffiti-lg);
    }

    .feature-icon-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      margin-bottom: 16px;
      box-shadow: 2px 2px 0 var(--border-dark);
      font-size: 1.3rem;
      font-weight: 900;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 900;
      margin-bottom: 10px;
    }

    .feature-card p {
      color: var(--ink-sub);
      font-size: 0.92rem;
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .feature-meta {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--ink-black);
      border-top: 1.5px dashed var(--border-dark);
      padding-top: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 流程步骤 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      position: relative;
    }

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

    .step-num {
      position: absolute;
      top: -14px;
      left: 16px;
      background: var(--color-lime);
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 900;
      padding: 2px 10px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .step-card h4 {
      font-size: 1.15rem;
      font-weight: 900;
      margin-top: 10px;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--ink-sub);
    }

    /* 对比表格区域 */
    .comparison-section {
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-graffiti-lg);
    }

    .rating-banner {
      background: var(--color-yellow);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-graffiti);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 30px;
    }

    .rating-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .rating-score {
      font-size: 2.8rem;
      font-weight: 950;
      line-height: 1;
    }

    .rating-sub {
      font-weight: 800;
      font-size: 1.05rem;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: 3px 3px 0 var(--border-dark);
    }

    table.comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
      background: #fff;
    }

    table.comp-table th, table.comp-table td {
      padding: 16px;
      border-bottom: 1.5px solid var(--border-dark);
      border-right: 1.5px solid #e5e7eb;
    }

    table.comp-table th {
      background: #f3f4f6;
      font-weight: 900;
      font-size: 1rem;
      color: var(--ink-black);
    }

    table.comp-table th.highlight-col, table.comp-table td.highlight-col {
      background: #fffbeb;
      font-weight: 800;
      border-right: 2px solid var(--border-dark);
      border-left: 2px solid var(--border-dark);
    }

    table.comp-table tr:last-child td {
      border-bottom: none;
    }

    .badge-check {
      color: #059669;
      font-weight: 900;
    }

    .badge-cross {
      color: #dc2626;
      font-weight: 800;
    }

    /* 案例中心 & 宣传素材展示 */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }

    .gallery-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-graffiti);
      transition: transform 0.2s ease;
    }

    .gallery-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-graffiti-lg);
    }

    .gallery-img-wrap {
      width: 100%;
      background: #f3f4f6;
      border-bottom: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

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

    .gallery-info {
      padding: 20px;
    }

    .gallery-info h4 {
      font-size: 1.15rem;
      font-weight: 900;
      margin-bottom: 6px;
    }

    .gallery-info p {
      font-size: 0.88rem;
      color: var(--ink-sub);
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-graffiti);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 1.1rem;
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--ink-black);
      line-height: 1.6;
      margin-bottom: 16px;
      font-weight: 500;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1.5px dashed var(--border-dark);
      padding-top: 12px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      background: var(--color-cyan);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .author-info h5 {
      font-size: 0.95rem;
      font-weight: 900;
    }

    .author-info span {
      font-size: 0.8rem;
      color: var(--ink-sub);
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-graffiti);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      font-weight: 900;
      font-size: 1.05rem;
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--ink-black);
    }

    .faq-question:hover {
      background: #fefce8;
    }

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.92rem;
      color: var(--ink-sub);
      line-height: 1.6;
      border-top: 1.5px dashed #f3f4f6;
      padding-top: 14px;
    }

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

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

    /* 需求表单与联系区块 */
    .contact-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 32px;
      background: #fff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-graffiti-lg);
    }

    .contact-form-side h3 {
      font-size: 1.6rem;
      font-weight: 950;
      margin-bottom: 8px;
    }

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

    .form-label {
      display: block;
      font-weight: 800;
      font-size: 0.88rem;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      background: var(--bg-cream);
      box-shadow: 2px 2px 0 var(--border-dark);
      outline: none;
      font-family: inherit;
    }

    .form-control:focus {
      background: #fff;
      border-color: #000;
      box-shadow: 3px 3px 0 var(--border-dark);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .contact-info-side {
      background: var(--bg-cream);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-graffiti);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .qr-card-wrap {
      text-align: center;
      margin: 20px 0;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: 3px 3px 0 var(--border-dark);
    }

    .qr-card-wrap img {
      max-width: 160px;
      height: auto;
      display: block;
      margin: 0 auto 10px;
      border: 1px solid var(--border-dark);
      border-radius: 6px;
    }

    .info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.92rem;
    }

    .info-list strong {
      color: var(--ink-black);
    }

    /* 最新文章列表区 */
    .articles-section {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-graffiti);
      margin-bottom: 40px;
    }

    .article-links-wrap {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 20px;
    }

    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 18px;
      background: var(--bg-cream);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: 2px 2px 0 var(--border-dark);
      font-weight: 700;
    }

    .article-item:hover {
      background: var(--color-yellow);
      transform: translateX(4px);
    }

    /* 友情链接与底部 */
    .links-block {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-graffiti);
      margin-bottom: 40px;
    }

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

    .links-flex a {
      background: var(--bg-cream);
      border: 2px solid var(--border-dark);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.88rem;
      font-weight: 800;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .links-flex a:hover {
      background: var(--color-lime);
      transform: translateY(-2px);
    }

    footer.site-footer {
      background: #18181b;
      color: #f3f4f6;
      border-top: 3px solid var(--border-dark);
      padding: 48px 0 32px;
    }

    .footer-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-col h5 {
      font-size: 1.1rem;
      font-weight: 900;
      color: #fff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-col p {
      font-size: 0.88rem;
      color: #9ca3af;
      line-height: 1.6;
    }

    .footer-bottom {
      border-top: 1px solid #374151;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
      color: #9ca3af;
    }

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

    /* 悬浮快捷助手 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .dock-btn {
      width: 48px;
      height: 48px;
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      box-shadow: 3px 3px 0 var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 1.1rem;
      transition: all 0.2s ease;
    }

    .dock-btn:hover {
      background: var(--color-yellow);
      transform: translateY(-3px);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .nav-links {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .hero-box {
        padding: 36px 24px;
      }
      .comparison-section, .contact-container {
        padding: 24px;
      }
    }

    @media (max-width: 640px) {
      .hero-h1 {
        font-size: 1.85rem;
      }
      .hero-cta-group {
        flex-direction: column;
        align-items: stretch;
      }
      .btn {
        width: 100%;
      }
      .header-actions .btn {
        display: none;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
    }