/* 全局与变量体系：多彩涂鸦风（活泼、灵动又不失企业官网端庄与高级感） */
    :root {
      --primary: #4361ee;
      --primary-dark: #3a0ca3;
      --accent-yellow: #ffd166;
      --accent-orange: #f77f00;
      --accent-pink: #f72585;
      --accent-green: #06d6a0;
      --accent-cyan: #4cc9f0;
      --accent-purple: #7209b7;
      
      --bg-main: #faf9f6;
      --bg-card: #ffffff;
      --bg-card-alt: #f4f6fa;
      
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      
      --border-color: #e2e8f0;
      --border-bold: #0f172a;
      
      --shadow-sm: 3px 3px 0px rgba(15, 23, 42, 0.08);
      --shadow-doodle: 4px 4px 0px #0f172a;
      --shadow-hover: 6px 6px 0px #4361ee;
      --shadow-soft: 0 10px 25px -5px rgba(0, 0, 0, 0.05);

      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-pill: 9999px;
      
      --container-max: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(#e2e8f0 1.2px, transparent 1.2px), 
        radial-gradient(#f1f5f9 1.2px, var(--bg-main) 1.2px);
      background-size: 36px 36px;
      background-position: 0 0, 18px 18px;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    ul, ol {
      list-style: none;
    }

    /* 容器统一居中系统 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 涂鸦微装饰类 */
    .doodle-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.85rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      border: 2px solid var(--border-bold);
      background: var(--accent-yellow);
      color: var(--border-bold);
      box-shadow: 2px 2px 0px var(--border-bold);
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .doodle-card {
      background: var(--bg-card);
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-doodle);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
      position: relative;
    }
    .doodle-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--border-bold);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
      object-fit: contain;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-title span {
      color: var(--primary);
    }

    /* 指令要求：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links a {
      padding: 8px 13px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      position: relative;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: rgba(67, 97, 238, 0.08);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-pill);
      border: 2px solid var(--border-bold);
      background: var(--accent-yellow);
      color: var(--border-bold);
      box-shadow: 2px 2px 0px var(--border-bold);
      cursor: pointer;
    }
    .btn-portal:hover {
      background: #ffc038;
      transform: translate(-1px, -1px);
      box-shadow: 3px 3px 0px var(--border-bold);
    }

    /* 移动端菜单按钮 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: 2px solid var(--border-bold);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-weight: 800;
    }

    /* 首屏 Hero 区域：严禁图片，纯代码绘制多彩科技涂鸦风 */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
      border-bottom: 2px dashed var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: clamp(2rem, 3.8vw, 2.7rem);
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .hero-content h1 mark {
      background: linear-gradient(120deg, var(--accent-yellow) 0%, #ffc038 100%);
      padding: 2px 8px;
      border-radius: 6px;
      color: var(--text-main);
      border: 1.5px solid var(--border-bold);
      display: inline-block;
      margin-top: 6px;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 28px;
      max-width: 580px;
    }
    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 32px;
    }
    .btn-hero-primary {
      padding: 14px 32px;
      font-size: 1.08rem;
      font-weight: 800;
      border-radius: var(--radius-pill);
      background: var(--accent-pink);
      color: #ffffff;
      border: 2px solid var(--border-bold);
      box-shadow: 4px 4px 0px var(--border-bold);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-hero-primary:hover {
      background: #e01e75;
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--border-bold);
      color: #ffffff;
    }
    .btn-hero-secondary {
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-pill);
      background: #ffffff;
      color: var(--text-main);
      border: 2px solid var(--border-bold);
      box-shadow: 4px 4px 0px var(--border-bold);
    }
    .btn-hero-secondary:hover {
      background: var(--bg-card-alt);
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--border-bold);
    }

    .hero-highlights {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    .hl-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .hl-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      border: 1.5px solid var(--border-bold);
    }

    /* 首屏纯代码互动涂鸦控制台看板（严禁出现任何图片资源） */
    .hero-visual-card {
      padding: 26px;
      background: #ffffff;
      border: 3px solid var(--border-bold);
      border-radius: 20px;
      box-shadow: 8px 8px 0px var(--accent-purple);
      position: relative;
    }
    .console-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--border-color);
    }
    .dot-indicators {
      display: flex;
      gap: 8px;
    }
    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1.5px solid var(--border-bold);
    }
    .dot-r { background: var(--accent-pink); }
    .dot-y { background: var(--accent-yellow); }
    .dot-g { background: var(--accent-green); }
    .console-tag {
      font-size: 0.78rem;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: var(--radius-pill);
      background: #f1f5f9;
      border: 1px solid var(--border-bold);
    }
    .model-pills-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }
    .pill {
      font-size: 0.78rem;
      font-weight: 700;
      padding: 5px 12px;
      border-radius: var(--radius-sm);
      border: 1.5px solid var(--border-bold);
      background: var(--bg-card-alt);
    }
    .pill.active {
      background: var(--accent-cyan);
      box-shadow: 2px 2px 0px var(--border-bold);
    }
    .console-stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 20px;
    }
    .c-stat-box {
      padding: 14px;
      background: var(--bg-card-alt);
      border: 1.5px solid var(--border-bold);
      border-radius: var(--radius-sm);
    }
    .c-stat-box .title {
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
    }
    .c-stat-box .num {
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--text-main);
      margin-top: 4px;
    }
    .c-progress-wrap {
      border: 1.5px solid var(--border-bold);
      border-radius: var(--radius-pill);
      height: 14px;
      background: #e2e8f0;
      overflow: hidden;
      margin-top: 6px;
    }
    .c-progress-bar {
      height: 100%;
      width: 88%;
      background: linear-gradient(90deg, var(--accent-yellow), var(--accent-orange));
    }
    .console-cta-strip {
      padding: 12px;
      border-radius: var(--radius-sm);
      background: #f0fdf4;
      border: 1.5px solid #86efac;
      font-size: 0.85rem;
      font-weight: 700;
      color: #166534;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 通用章节规范 */
    .section-wrap {
      padding: 70px 0;
      border-bottom: 2px solid var(--border-color);
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 46px;
    }
    .section-title {
      font-size: clamp(1.6rem, 2.8vw, 2.2rem);
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 1.02rem;
      color: var(--text-muted);
    }

    /* 聚合大模型矩阵标签云 */
    .model-matrix-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }
    .matrix-tag {
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      border: 1.5px solid var(--border-bold);
      background: #ffffff;
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--text-main);
      box-shadow: 2px 2px 0px rgba(15,23,42,0.06);
      transition: all 0.2s;
    }
    .matrix-tag:hover {
      background: var(--accent-yellow);
      transform: translateY(-2px);
      box-shadow: 3px 3px 0px var(--border-bold);
    }

    /* 卡片网格布局通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 26px;
    }

    /* 业务场景与服务能力卡片 */
    .service-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .card-icon-badge {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      border: 2px solid var(--border-bold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
      margin-bottom: 16px;
      box-shadow: 2px 2px 0px var(--border-bold);
    }
    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 14px;
    }
    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }
    .c-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--bg-card-alt);
      border: 1px solid #cbd5e1;
      font-weight: 600;
    }

    /* 对比评测专属板块 */
    .review-score-hero {
      background: #ffffff;
      border: 3px solid var(--border-bold);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 6px 6px 0px var(--accent-orange);
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .score-left h3 {
      font-size: 1.5rem;
      font-weight: 900;
      margin-bottom: 6px;
    }
    .score-stars {
      color: #ff9f1c;
      font-size: 1.3rem;
      letter-spacing: 2px;
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 800;
    }
    .score-stars span {
      color: var(--text-main);
      font-size: 0.95rem;
    }
    .score-right {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .big-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--accent-pink);
      line-height: 1;
    }
    .full-score {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-muted);
    }
    
    /* 对比表格（自适应与横向滚动） */
    .table-responsive {
      overflow-x: auto;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-doodle);
      background: #ffffff;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1.5px solid var(--border-color);
      font-size: 0.94rem;
    }
    .eval-table th {
      background: #f8fafc;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-bold);
    }
    .eval-table tr:hover td {
      background: #fafafa;
    }
    .eval-badge-win {
      display: inline-block;
      padding: 3px 10px;
      background: #dcfce7;
      color: #15803d;
      font-weight: 700;
      border-radius: var(--radius-pill);
      border: 1px solid #86efac;
    }
    .eval-badge-loss {
      display: inline-block;
      padding: 3px 10px;
      background: #f1f5f9;
      color: #64748b;
      font-weight: 600;
      border-radius: var(--radius-pill);
    }

    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      padding: 24px 20px;
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      box-shadow: 4px 4px 0px var(--border-bold);
      position: relative;
    }
    .step-num {
      width: 38px;
      height: 38px;
      background: var(--accent-cyan);
      border: 2px solid var(--border-bold);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      margin-bottom: 14px;
      box-shadow: 2px 2px 0px var(--border-bold);
    }
    .step-item h4 {
      font-size: 1.12rem;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 真实媒体图容器规范 */
    .media-card {
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #ffffff;
      box-shadow: var(--shadow-doodle);
      display: flex;
      flex-direction: column;
    }
    .media-img-holder {
      width: 100%;
      background: #e2e8f0;
      overflow: hidden;
      position: relative;
    }
    .media-img-holder img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .media-card:hover .media-img-holder img {
      transform: scale(1.03);
    }
    .media-info {
      padding: 18px 20px;
    }
    .media-info h4 {
      font-size: 1.08rem;
      font-weight: 800;
      margin-bottom: 6px;
    }
    .media-info p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 用户评论卡片 6条 */
    .testimonial-card {
      padding: 24px;
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      box-shadow: 4px 4px 0px var(--border-bold);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .t-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .t-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 2px solid var(--border-bold);
      background: var(--accent-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .t-name {
      font-size: 0.98rem;
      font-weight: 800;
      color: var(--text-main);
    }
    .t-role {
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
    }
    .t-content {
      font-size: 0.91rem;
      color: var(--text-main);
      line-height: 1.6;
      font-style: italic;
    }

    /* FAQ 手风琴面板 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      background: #ffffff;
      box-shadow: 3px 3px 0px var(--border-bold);
      overflow: hidden;
      transition: all 0.2s ease;
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }
    .faq-icon {
      width: 24px;
      height: 24px;
      border: 2px solid var(--border-bold);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.9rem;
      background: var(--accent-yellow);
      transition: transform 0.25s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--accent-pink);
      color: #ffffff;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fbfcfe;
    }
    .faq-answer-inner {
      padding: 0 22px 20px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    /* 表单与需求匹配模块 */
    .form-container-box {
      max-width: 820px;
      margin: 0 auto;
      background: #ffffff;
      border: 3px solid var(--border-bold);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 8px 8px 0px var(--accent-cyan);
    }
    .form-grid-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-sm);
      background: #fcfcfc;
      color: var(--text-main);
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 2px 2px 0px var(--primary);
    }
    .form-textarea {
      min-height: 110px;
      resize: vertical;
    }
    .form-submit-btn {
      width: 100%;
      padding: 15px;
      font-size: 1.08rem;
      font-weight: 800;
      background: var(--accent-yellow);
      color: var(--border-bold);
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      box-shadow: 4px 4px 0px var(--border-bold);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .form-submit-btn:hover {
      background: #ffc038;
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--border-bold);
    }

    /* 行业资讯与文章模块列表 */
    .article-wrap-box {
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-doodle);
    }
    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }
    .article-link-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      background: var(--bg-card-alt);
      border: 1.5px solid var(--border-bold);
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .article-link-tag:hover {
      background: var(--accent-yellow);
      transform: translateY(-2px);
      box-shadow: 2px 2px 0px var(--border-bold);
    }

    /* 页脚区域严格对齐与规范 */
    .site-footer {
      background: #ffffff;
      border-top: 3px solid var(--border-bold);
      padding: 50px 0 30px;
      color: var(--text-main);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 36px;
    }
    .footer-col h4 {
      font-size: 1.08rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .footer-links-list li {
      margin-bottom: 8px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .footer-links-list a:hover {
      color: var(--primary);
      text-decoration: underline;
    }
    .qr-container {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
    .qr-container img {
      width: 105px;
      height: 105px;
      border: 2px solid var(--border-bold);
      border-radius: 8px;
      display: block;
      box-shadow: 2px 2px 0px var(--border-bold);
    }
    .qr-label {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-weight: 700;
    }

    /* 友情链接区 */
    .friend-links-bar {
      padding: 16px 0;
      border-top: 1px dashed var(--border-color);
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      font-size: 0.88rem;
      margin-bottom: 24px;
    }
    .friend-links-bar .fl-title {
      font-weight: 800;
      color: var(--text-main);
    }
    .friend-links-bar a {
      color: var(--text-muted);
      font-weight: 600;
    }
    .friend-links-bar a:hover {
      color: var(--primary);
    }

    .footer-bottom-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 浮动客服入口与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 22px;
      bottom: 26px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      border: 2px solid var(--border-bold);
      background: #ffffff;
      box-shadow: 3px 3px 0px var(--border-bold);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 1rem;
      transition: all 0.2s;
    }
    .float-btn:hover {
      transform: scale(1.08);
      background: var(--accent-yellow);
    }
    .btn-top {
      display: none;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--border-bold);
        flex-direction: column;
        padding: 16px 20px;
        gap: 0; /* 严格符合要求 */
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .nav-actions .btn-portal {
        display: none;
      }
      .grid-3, .grid-2, .grid-4, .steps-grid {
        grid-template-columns: 1fr;
      }
      .form-grid-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .review-score-hero {
        flex-direction: column;
        align-items: flex-start;
      }
    }