:root {
      --bg-base: #faf8f5;
      --bg-card: #ffffff;
      --text-main: #1e1b18;
      --text-muted: #57534e;
      --primary: #ff4d4f;
      --accent-yellow: #facc15;
      --accent-cyan: #06b6d4;
      --accent-purple: #8b5cf6;
      --accent-green: #10b981;
      --border-dark: #1e1b18;
      --shadow-solid: 4px 4px 0px #1e1b18;
      --shadow-hover: 6px 6px 0px #1e1b18;
      --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 {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 12% 18%, rgba(250, 204, 21, 0.15) 0%, transparent 28%),
        radial-gradient(circle at 88% 25%, rgba(6, 182, 212, 0.15) 0%, transparent 32%),
        radial-gradient(circle at 50% 75%, rgba(255, 77, 79, 0.1) 0%, transparent 40%),
        radial-gradient(#1e1b18 0.75px, transparent 0.75px);
      background-size: 100% 100%, 100% 100%, 100% 100%, 24px 24px;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(250, 248, 245, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-dark);
      transition: all 0.3s ease;
    }

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

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

    .brand-wrap img {
      max-height: 44px;
      width: auto;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .badge-doodle {
      background: var(--accent-yellow);
      border: 2px solid var(--border-dark);
      padding: 2px 8px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: 99px;
      transform: rotate(-3deg);
      display: inline-block;
    }

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

    .nav-item {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      position: relative;
    }

    .nav-item:hover {
      background: #fef08a;
      transform: translateY(-2px);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      padding: 10px 20px;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-dark);
      box-shadow: var(--shadow-solid);
      cursor: pointer;
      transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
      font-size: 0.95rem;
      text-align: center;
    }

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

    .btn:active {
      transform: translate(2px, 2px);
      box-shadow: 0 0 0 var(--border-dark);
    }

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

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

    .btn-cyan {
      background-color: var(--accent-cyan);
      color: var(--text-main);
    }

    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }

    .btn-lg {
      padding: 14px 28px;
      font-size: 1.1rem;
    }

    .menu-toggle {
      display: none;
      background: #fff;
      border: 2px solid var(--border-dark);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.25rem;
    }

    /* 涂鸦通用卡片 */
    .doodle-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-solid);
      padding: 28px;
      position: relative;
      transition: all 0.25s ease;
    }

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

    .section-wrap {
      padding-top: 60px;
      padding-bottom: 60px;
      position: relative;
    }

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

    .section-tag {
      display: inline-block;
      font-weight: 800;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 12px;
      background: var(--accent-cyan);
      border: 2px solid var(--border-dark);
      border-radius: 99px;
      margin-bottom: 12px;
      transform: rotate(1deg);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 14px;
    }

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

    /* 首屏 Hero */
    .hero-section {
      padding-top: 70px;
      padding-bottom: 80px;
      position: relative;
    }

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

    .hero-content h1 {
      font-size: 2.75rem;
      line-height: 1.2;
      font-weight: 900;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .highlight-sketch {
      position: relative;
      display: inline-block;
      z-index: 1;
    }

    .highlight-sketch::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 6px;
      width: 100%;
      height: 14px;
      background: var(--accent-yellow);
      z-index: -1;
      transform: rotate(-1.5deg);
      border-radius: 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.7;
    }

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

    .trust-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .trust-pill {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      font-weight: 700;
      background: #ffffff;
      padding: 6px 14px;
      border: 2px dashed var(--border-dark);
      border-radius: 99px;
    }

    .hero-board {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 8px 8px 0px var(--border-dark);
      position: relative;
    }

    .hero-board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid var(--border-dark);
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

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

    .circle-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
    }

    .stat-cards-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 20px;
    }

    .mini-stat-card {
      background: var(--bg-base);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 16px;
      text-align: center;
    }

    .mini-stat-num {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--primary);
    }

    .mini-stat-label {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .hero-terminal-box {
      background: #f1f5f9;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 14px;
      font-size: 0.88rem;
      font-weight: 600;
      line-height: 1.6;
    }

    /* 模型矩阵徽章流 */
    .model-strip {
      background: var(--accent-yellow);
      border-top: 2px solid var(--border-dark);
      border-bottom: 2px solid var(--border-dark);
      padding: 14px 0;
      overflow: hidden;
      white-space: nowrap;
    }

    .model-ticker {
      display: inline-flex;
      animation: tickerRun 35s linear infinite;
      gap: 18px;
    }

    .ticker-item {
      font-weight: 800;
      font-size: 0.95rem;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      padding: 4px 12px;
      border-radius: 99px;
      box-shadow: 2px 2px 0px var(--border-dark);
      display: inline-block;
    }

    @keyframes tickerRun {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }

    /* 核心场景网格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 22px;
    }

    .service-item {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 16px;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .service-item h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .service-item p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .chip {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      background: #f1f5f9;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
    }

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

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

    .step-num-badge {
      width: 38px;
      height: 38px;
      background: var(--accent-purple);
      color: #fff;
      font-weight: 900;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    /* 对比评测表格与卡片 */
    .eval-overview {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 24px;
      margin-bottom: 30px;
      align-items: stretch;
    }

    .score-highlight-card {
      background: #fef08a;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 30px;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: center;
      box-shadow: var(--shadow-solid);
    }

    .score-val {
      font-size: 4rem;
      font-weight: 900;
      line-height: 1;
      color: var(--primary);
      margin: 10px 0;
    }

    .stars-render {
      font-size: 1.5rem;
      letter-spacing: 4px;
      margin-bottom: 8px;
    }

    .comparison-table-wrapper {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-solid);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
      font-size: 0.92rem;
    }

    .comparison-table th {
      background: #f8fafc;
      font-weight: 800;
      border-bottom: 2px solid var(--border-dark);
    }

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

    .comparison-table .star-tag {
      background: #dcfce7;
      color: #15803d;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid #16a34a;
    }

    /* 案例展示区带图 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .media-box-container {
      background: #fff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-solid);
      transition: all 0.25s ease;
    }

    .media-box-container:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .media-box-container img {
      width: 100%;
      max-width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
      border-bottom: 2px solid var(--border-dark);
    }

    .media-box-info {
      padding: 14px;
    }

    .media-box-info h4 {
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .media-box-info p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 用户评论卡片 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-solid);
      position: relative;
    }

    .review-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .avatar-sketch {
      width: 42px;
      height: 42px;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      background: var(--accent-cyan);
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 800;
    }

    .user-meta span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-accordion-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: 3px 3px 0px var(--border-dark);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question-btn {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 800;
      background: none;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      color: var(--text-main);
    }

    .faq-toggle-icon {
      font-size: 1.4rem;
      transition: transform 0.25s ease;
    }

    .faq-answer-panel {
      padding: 0 24px 18px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }

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

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

    /* 表单与需求匹配 */
    .form-section-box {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 8px 8px 0px var(--border-dark);
      max-width: 840px;
      margin: 0 auto;
    }

    .contact-form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-full-span {
      grid-column: span 2;
    }

    .form-control-wrap {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-control-wrap label {
      font-weight: 800;
      font-size: 0.9rem;
    }

    .input-field,
    .select-field,
    .textarea-field {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      background: var(--bg-base);
      transition: all 0.2s ease;
    }

    .input-field:focus,
    .select-field:focus,
    .textarea-field:focus {
      outline: none;
      background: #ffffff;
      box-shadow: 3px 3px 0px var(--border-dark);
    }

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

    /* 资讯与百科文章 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-top: 24px;
    }

    .article-item-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 3px 3px 0px var(--border-dark);
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .article-item-card:hover {
      background: var(--accent-yellow);
      transform: translateY(-2px);
    }

    /* 代理加盟政策块 */
    .agency-banner {
      background: #e0e7ff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .agency-perks-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
    }

    .agency-perk-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 3px solid var(--border-dark);
      padding-top: 50px;
      padding-bottom: 30px;
      margin-top: 60px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 900;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .footer-col p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      line-height: 1.6;
    }

    .footer-links-vertical {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-vertical a {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
      transition: color 0.2s ease;
    }

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

    .qr-container {
      width: 120px;
      height: 120px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-top: 8px;
    }

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

    .friend-links-box {
      border-top: 1px dashed var(--border-dark);
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friend-links-box h5 {
      font-size: 0.9rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .friend-link-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-link-tags a {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-muted);
      background: var(--bg-base);
      padding: 3px 10px;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
    }

    .friend-link-tags a:hover {
      background: var(--accent-yellow);
      color: var(--text-main);
    }

    .footer-bottom-bar {
      border-top: 2px solid var(--border-dark);
      padding-top: 20px;
      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;
    }

    /* 浮动组件与交互小工具 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-circle-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      box-shadow: 3px 3px 0px var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .float-circle-btn:hover {
      background: var(--accent-yellow);
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0px var(--border-dark);
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .eval-overview {
        grid-template-columns: 1fr;
      }
      .steps-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #faf8f5;
        border-bottom: 2px solid var(--border-dark);
        flex-direction: column;
        padding: 16px 20px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item {
        width: 100%;
        text-align: center;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .contact-form-grid {
        grid-template-columns: 1fr;
      }
      .form-full-span {
        grid-column: span 1;
      }
      .steps-timeline {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }