:root {
      --bg-main: #FAF8F5;
      --bg-card: #FFFFFF;
      --text-main: #1C1917;
      --text-muted: #57534E;
      --border-dark: #1C1917;
      --pop-yellow: #FFE600;
      --pop-pink: #FF6B8B;
      --pop-cyan: #00E5FF;
      --pop-purple: #9D4EDD;
      --pop-orange: #FF9E00;
      --pop-green: #00F5D4;
      --pop-blue: #3A86FF;
      --shadow-offset: 4px 4px 0px #1C1917;
      --shadow-hover: 6px 6px 0px #1C1917;
      --shadow-pop: 5px 5px 0px #FFE600;
      --radius: 14px;
      --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
    }
    body {
      background-color: var(--bg-main);
      background-image: radial-gradient(#E7E5E4 1.5px, transparent 1.5px);
      background-size: 24px 24px;
      color: var(--text-main);
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    /* 顶部通知与导航 */
    .top-banner {
      background: var(--pop-yellow);
      border-bottom: 2px solid var(--border-dark);
      padding: 8px 16px;
      font-size: 13px;
      font-weight: 700;
      text-align: center;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 12px;
      color: var(--text-main);
    }
    .top-banner .badge {
      background: var(--border-dark);
      color: #FFF;
      padding: 2px 8px;
      border-radius: 6px;
      font-size: 11px;
    }
    .header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(250, 248, 245, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-dark);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-box {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .brand-title-box {
      display: flex;
      flex-direction: column;
    }
    .brand-title {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: -0.5px;
      line-height: 1.1;
    }
    .brand-sub {
      font-size: 11px;
      font-weight: 700;
      color: var(--pop-purple);
      text-transform: uppercase;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li {
      margin: 0;
      padding: 0;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 700;
      padding: 8px 12px;
      border-radius: 8px;
      transition: var(--transition);
      display: inline-block;
    }
    .nav-links a:hover {
      background: var(--pop-yellow);
      transform: translateY(-2px);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-pop {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 800;
      background: var(--pop-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      box-shadow: 3px 3px 0px var(--border-dark);
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
    }
    .btn-pop:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--border-dark);
      background: #FFE000;
    }
    .btn-pop:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0px var(--border-dark);
    }
    .btn-pop.cyan {
      background: var(--pop-cyan);
    }
    .btn-pop.pink {
      background: var(--pop-pink);
      color: #FFF;
    }
    .btn-pop.purple {
      background: var(--pop-purple);
      color: #FFF;
    }
    .btn-pop.white {
      background: #FFFFFF;
    }
    .mobile-menu-btn {
      display: none;
      background: #FFF;
      border: 2px solid var(--border-dark);
      padding: 6px 10px;
      font-weight: 900;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 2px 2px 0px var(--border-dark);
    }
    /* Section通用排版 */
    section {
      padding: 64px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 12px;
      font-weight: 900;
      text-transform: uppercase;
      background: var(--pop-green);
      border: 2px solid var(--border-dark);
      border-radius: 30px;
      box-shadow: 2px 2px 0px var(--border-dark);
      margin-bottom: 12px;
      transform: rotate(-1deg);
    }
    .section-title {
      font-size: 32px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      line-height: 1.6;
    }
    /* 首屏 Hero Section (无图片) */
    .hero-section {
      padding: 56px 0 60px 0;
    }
    .hero-inner {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }
    .hero-badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
    }
    .hero-pill {
      font-size: 12px;
      font-weight: 800;
      padding: 4px 12px;
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      background: #FFF;
      box-shadow: 2px 2px 0px var(--border-dark);
    }
    .hero-title {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.2;
      letter-spacing: -1px;
      margin-bottom: 18px;
    }
    .hero-title span.highlight {
      background: var(--pop-yellow);
      padding: 0 6px;
      border: 2px solid var(--border-dark);
      box-shadow: 3px 3px 0px var(--border-dark);
      display: inline-block;
      border-radius: 6px;
      transform: rotate(1deg);
    }
    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 28px;
      font-weight: 500;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
      margin-bottom: 32px;
    }
    .btn-hero-portal {
      font-size: 18px;
      padding: 14px 32px;
      background: var(--pop-pink);
      color: #FFF;
      border: 3px solid var(--border-dark);
      border-radius: 12px;
      font-weight: 900;
      box-shadow: 5px 5px 0px var(--border-dark);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .btn-hero-portal:hover {
      transform: translate(-3px, -3px);
      box-shadow: 8px 8px 0px var(--border-dark);
      background: #FF5277;
    }
    .hero-perks {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      font-weight: 700;
    }
    .hero-perk-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-perk-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      background: var(--pop-green);
    }
    /* Hero 右侧纯 CSS 涂鸦代码画板 */
    .hero-graphic-card {
      background: #FFFFFF;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-hover);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
      position: relative;
    }
    .terminal-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 2px dashed var(--border-dark);
      padding-bottom: 12px;
    }
    .terminal-dots {
      display: flex;
      gap: 6px;
    }
    .terminal-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
    }
    .terminal-dot.c1 { background: #FF5F56; }
    .terminal-dot.c2 { background: #FFBD2E; }
    .terminal-dot.c3 { background: #27C93F; }
    .terminal-title {
      font-size: 12px;
      font-weight: 900;
      color: var(--text-muted);
    }
    .hero-stack-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    .stack-box {
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      padding: 14px;
      background: var(--bg-main);
      box-shadow: 2px 2px 0px var(--border-dark);
    }
    .stack-box.active {
      background: #FFF9D2;
    }
    .stack-box-title {
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .stack-box-desc {
      font-size: 12px;
      color: var(--text-muted);
    }
    .model-scroll-banner {
      background: var(--pop-purple);
      color: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      padding: 8px 12px;
      font-size: 12px;
      font-weight: 800;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }
    /* 核心数据卡片 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 36px;
    }
    .metric-card {
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      padding: 18px 20px;
      box-shadow: var(--shadow-offset);
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .metric-num {
      font-size: 28px;
      font-weight: 900;
      color: var(--text-main);
    }
    .metric-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
    }
    /* 平台介绍 & 多模型聚合 */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .intro-card {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-offset);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .intro-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .card-badge-icon {
      width: 44px;
      height: 44px;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 900;
      box-shadow: 2px 2px 0px var(--border-dark);
      margin-bottom: 6px;
    }
    .intro-card h3 {
      font-size: 18px;
      font-weight: 900;
    }
    .intro-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 场景卡片矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .service-card {
      background: #FFFFFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-offset);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }
    .service-card-top {
      margin-bottom: 14px;
    }
    .service-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 8px;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      margin-bottom: 8px;
      background: var(--pop-yellow);
    }
    .service-card h3 {
      font-size: 17px;
      font-weight: 900;
      margin-bottom: 8px;
    }
    .service-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.55;
    }
    .service-card-footer {
      border-top: 1px dashed var(--border-dark);
      padding-top: 12px;
      margin-top: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      font-weight: 800;
    }
    /* 流程步骤 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .process-step {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px 20px;
      box-shadow: var(--shadow-offset);
      position: relative;
    }
    .step-num {
      position: absolute;
      top: -14px;
      left: 18px;
      background: var(--pop-pink);
      color: #FFF;
      border: 2px solid var(--border-dark);
      font-size: 13px;
      font-weight: 900;
      padding: 2px 10px;
      border-radius: 20px;
      box-shadow: 2px 2px 0px var(--border-dark);
    }
    .step-title {
      font-size: 16px;
      font-weight: 900;
      margin-top: 8px;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* 案例图片展示区 (非首屏) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .case-banner-card {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: var(--shadow-offset);
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .img-container {
      width: 100%;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      overflow: hidden;
      background: #F0EDE8;
    }
    .img-container img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }
    .img-container img:hover {
      transform: scale(1.02);
    }
    .case-info {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .case-info h3 {
      font-size: 16px;
      font-weight: 900;
    }
    .case-info p {
      font-size: 13px;
      color: var(--text-muted);
    }
    .case-media-row {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    /* 对比评测板块 */
    .rating-banner {
      background: #FFF;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-hover);
      padding: 32px;
      margin-bottom: 32px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .score-circle {
      width: 84px;
      height: 84px;
      background: var(--pop-yellow);
      border: 3px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 3px 3px 0px var(--border-dark);
    }
    .score-value {
      font-size: 28px;
      font-weight: 900;
      line-height: 1;
    }
    .score-max {
      font-size: 11px;
      font-weight: 800;
      color: var(--text-muted);
    }
    .rating-text h3 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 6px;
    }
    .rating-stars {
      color: #FF9E00;
      font-size: 18px;
      letter-spacing: 2px;
      font-weight: 900;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      background: #FFF;
      box-shadow: var(--shadow-offset);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #E5E7EB;
      border-right: 1px solid #E5E7EB;
    }
    .comparison-table th {
      background: #F3F0EA;
      font-weight: 900;
      color: var(--text-main);
    }
    .comparison-table th:nth-child(2),
    .comparison-table td:nth-child(2) {
      background: #FFFDF0;
      font-weight: 800;
      color: #B45309;
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }
    /* 需求匹配与表单 */
    .form-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #FFF;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-hover);
    }
    .form-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .form-info-title {
      font-size: 24px;
      font-weight: 900;
      margin-bottom: 14px;
    }
    .form-info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 18px;
    }
    .form-info-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 700;
    }
    .form-input-side form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 800;
    }
    .form-group input, .form-group select, .form-group textarea {
      padding: 12px 14px;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      font-size: 14px;
      background: #FAF8F5;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      background: #FFF;
      border-color: var(--pop-blue);
      box-shadow: 2px 2px 0px var(--border-dark);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 90px;
    }
    /* Token比价与加盟代理 */
    .agent-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .agent-card {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-offset);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 16px;
    }
    .agent-price {
      font-size: 26px;
      font-weight: 900;
      color: var(--pop-purple);
    }
    .agent-perks {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
    }
    /* 客户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-offset);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-body {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: normal;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed #E5E7EB;
      padding-top: 12px;
    }
    .avatar-placeholder {
      width: 40px;
      height: 40px;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      background: var(--pop-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 14px;
    }
    .author-info h4 {
      font-size: 14px;
      font-weight: 800;
    }
    .author-info span {
      font-size: 12px;
      color: var(--text-muted);
    }
    /* FAQ 折叠 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      box-shadow: 2px 2px 0px var(--border-dark);
      overflow: hidden;
    }
    .faq-question {
      padding: 16px 20px;
      font-weight: 800;
      font-size: 15px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      background: #FFF;
      transition: var(--transition);
    }
    .faq-question:hover {
      background: #FFFDF0;
    }
    .faq-icon {
      font-size: 18px;
      font-weight: 900;
      transition: transform 0.2s ease;
    }
    .faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      background: #FAF8F5;
      border-top: 0px solid transparent;
    }
    .faq-item.active .faq-answer {
      padding: 14px 20px;
      max-height: 200px;
      border-top: 1px dashed var(--border-dark);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    /* 文章与百科 */
    .article-section-wrap {
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-offset);
    }
    .article-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }
    .article-link-chip {
      padding: 8px 14px;
      background: var(--bg-main);
      border: 1.5px solid var(--border-dark);
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      transition: var(--transition);
    }
    .article-link-chip:hover {
      background: var(--pop-yellow);
      transform: translateY(-2px);
    }
    /* 友情链接区 */
    .friend-links-box {
      margin-top: 40px;
      padding: 20px;
      background: #FFF;
      border: 2px dashed var(--border-dark);
      border-radius: 12px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      font-size: 13px;
    }
    .friend-links-title {
      font-weight: 900;
      margin-right: 6px;
    }
    .friend-links-box a {
      color: var(--text-muted);
      font-weight: 600;
      transition: var(--transition);
      padding: 4px 8px;
      border-radius: 4px;
    }
    .friend-links-box a:hover {
      color: var(--text-main);
      background: var(--pop-yellow);
    }
    /* 页脚 Footer */
    .footer {
      background: #FFFFFF;
      border-top: 2px solid var(--border-dark);
      padding: 48px 0 24px 0;
      margin-top: 40px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 900;
      margin-bottom: 14px;
      position: relative;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
    }
    .footer-col ul li a:hover {
      color: var(--text-main);
      text-decoration: underline;
    }
    .footer-bottom {
      border-top: 1px solid #E5E7EB;
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      font-weight: 600;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 12px;
    }
    /* 浮动组件 */
    .floating-widget {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 9999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .floating-btn {
      width: 48px;
      height: 48px;
      border: 2px solid var(--border-dark);
      background: var(--pop-yellow);
      border-radius: 50%;
      box-shadow: 3px 3px 0px var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 900;
      cursor: pointer;
      transition: var(--transition);
      position: relative;
    }
    .floating-btn:hover {
      transform: scale(1.08);
    }
    .qr-popup {
      position: absolute;
      right: 56px;
      bottom: 0;
      width: 160px;
      background: #FFF;
      border: 2px solid var(--border-dark);
      border-radius: 10px;
      padding: 10px;
      box-shadow: 4px 4px 0px var(--border-dark);
      display: none;
      text-align: center;
      font-size: 11px;
      font-weight: 800;
    }
    .floating-btn:hover .qr-popup {
      display: block;
    }
    .qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 4px;
    }
    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-inner {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid, .services-grid, .agent-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid, .case-media-row {
        grid-template-columns: 1fr;
      }
      .form-layout {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #FAF8F5;
        border-bottom: 2px solid var(--border-dark);
        padding: 16px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
      }
      .hero-title {
        font-size: 28px;
      }
      .intro-grid, .services-grid, .agent-grid, .reviews-grid, .metrics-bar, .process-timeline {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }