:root {
      --primary-yellow: #FFD200;
      --secondary-yellow: #FFE600;
      --hover-yellow: #FFC400;
      --dark-black: #111417;
      --deep-charcoal: #1F2429;
      --text-main: #212529;
      --text-muted: #57606A;
      --light-bg: #FCFDFD;
      --card-bg: #FFFFFF;
      --section-gray: #F6F8FA;
      --border-color: #E7EAEE;
      --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px rgba(255, 210, 0, 0.12), 0 4px 10px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.08);
      --radius: 12px;
      --radius-sm: 8px;
      --transition: all 0.28s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    ul, ol {
      list-style: none;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    .section-spacing {
      padding: 80px 0;
      position: relative;
    }

    .section-gray {
      background-color: var(--section-gray);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background-color: var(--primary-yellow);
      color: var(--dark-black);
      font-size: 13px;
      font-weight: 700;
      border-radius: 30px;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
      text-transform: uppercase;
      box-shadow: 0 2px 8px rgba(255, 210, 0, 0.3);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--dark-black);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 30px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 2px solid transparent;
      gap: 8px;
    }

    .btn-yellow {
      background-color: var(--primary-yellow);
      color: var(--dark-black);
      box-shadow: 0 4px 14px rgba(255, 210, 0, 0.4);
    }

    .btn-yellow:hover {
      background-color: var(--hover-yellow);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 210, 0, 0.5);
    }

    .btn-dark {
      background-color: var(--dark-black);
      color: #FFFFFF;
    }

    .btn-dark:hover {
      background-color: var(--deep-charcoal);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(17, 20, 23, 0.25);
    }

    .btn-outline {
      border-color: var(--dark-black);
      color: var(--dark-black);
      background: transparent;
    }

    .btn-outline:hover {
      background-color: var(--dark-black);
      color: #FFFFFF;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--primary-yellow);
      transition: var(--transition);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .logo-brand .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--dark-black);
      letter-spacing: -0.3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 规则强制要求：.nav-links 的 gap 属性设置为 0 */
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--dark-black);
      background-color: rgba(255, 210, 0, 0.2);
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--dark-black);
      padding: 6px;
    }

    /* 首屏 HERO 区域 - 绝不使用图片 */
    .hero-section {
      background: linear-gradient(135deg, #FFFDF0 0%, #FFFFFF 45%, #FFF9D2 100%);
      padding: 90px 0 70px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-decor-circle {
      position: absolute;
      top: -80px;
      right: -80px;
      width: 380px;
      height: 380px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 210, 0, 0.28) 0%, rgba(255, 210, 0, 0) 70%);
      pointer-events: none;
    }

    .hero-decor-grid {
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: radial-gradient(rgba(255, 210, 0, 0.4) 1px, transparent 1px);
      background-size: 24px 24px;
      opacity: 0.35;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background-color: #FFFFFF;
      border: 1px solid #FFE033;
      box-shadow: 0 3px 10px rgba(255, 210, 0, 0.2);
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--dark-black);
      margin-bottom: 24px;
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #00BA34;
      display: inline-block;
      box-shadow: 0 0 0 3px rgba(0, 186, 52, 0.2);
    }

    .hero-title {
      font-size: 2.8rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--dark-black);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(180deg, transparent 65%, var(--primary-yellow) 65%);
      display: inline;
      padding: 0 6px;
    }

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 34px auto;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }

    .hero-tags-bar {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      padding-top: 10px;
    }

    .hero-tag {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--dark-black);
      border-radius: 6px;
      box-shadow: var(--shadow-sm);
    }

    /* 指标统计栏 */
    .metrics-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 34px 0;
    }

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

    .metric-item {
      padding: 10px;
      border-right: 1px solid var(--border-color);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--dark-black);
      display: flex;
      align-items: baseline;
      justify-content: center;
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric-num small {
      font-size: 1rem;
      color: var(--dark-black);
      margin-left: 2px;
      font-weight: 700;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 卡片通用 */
    .card {
      background-color: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #FFE600;
    }

    /* 模型支持跑马条 */
    .model-tags-section {
      background-color: #FFFFFF;
      padding: 30px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .model-title-lead {
      text-align: center;
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }

    .model-chip-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-chip {
      background: #F8F9FA;
      border: 1px solid #E2E6EA;
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
      color: #333C48;
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--primary-yellow);
      border-color: var(--hover-yellow);
      color: var(--dark-black);
    }

    /* 服务能力大卡 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card-icon {
      width: 50px;
      height: 50px;
      border-radius: 10px;
      background-color: var(--primary-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--dark-black);
    }

    .service-card-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--dark-black);
      margin-bottom: 10px;
    }

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

    .service-card-features {
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      margin-top: auto;
    }

    .service-card-features li {
      font-size: 0.86rem;
      color: #3C444E;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-card-features li::before {
      content: "✓";
      color: var(--dark-black);
      background: var(--primary-yellow);
      width: 16px;
      height: 16px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 10px;
      font-weight: bold;
    }

    /* 一站式场景展示 */
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scene-card {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      padding: 20px;
      transition: var(--transition);
    }

    .scene-card:hover {
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }

    .scene-badge {
      display: inline-block;
      background: rgba(255, 210, 0, 0.35);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 8px;
    }

    .scene-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-black);
      margin-bottom: 8px;
    }

    .scene-detail {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 图文素材与案例展示 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .case-gallery-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      width: 100%;
      background-color: #EAECEF;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      aspect-ratio: 16 / 9;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }

    .case-gallery-item:hover .case-img-wrap img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 24px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--dark-black);
    }

    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .image-strip-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-top: 24px;
    }

    .square-img-wrap {
      aspect-ratio: 1 / 1;
    }

    /* 对比评测表格 */
    .evaluation-card {
      background: #FFFFFF;
      border: 2px solid var(--primary-yellow);
      border-radius: var(--radius);
      padding: 34px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

    .evaluation-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 20px;
    }

    .score-badge-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-num-big {
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--dark-black);
      line-height: 1;
    }

    .score-stars {
      color: #EAA800;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .score-note {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .table-responsive {
      overflow-x: auto;
      margin-top: 24px;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #FAFBFC;
      font-weight: 700;
      color: var(--dark-black);
    }

    .compare-table tr:hover td {
      background-color: #FFFEEB;
    }

    .table-col-highlight {
      background-color: #FFFDF0;
      font-weight: 700;
      color: #1A1F24;
      border-left: 2px solid var(--primary-yellow);
      border-right: 2px solid var(--primary-yellow);
    }

    /* 流程步骤 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .step-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 24px 18px;
      position: relative;
    }

    .step-num-icon {
      width: 38px;
      height: 38px;
      background: var(--primary-yellow);
      color: var(--dark-black);
      font-weight: 900;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      margin-bottom: 14px;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-black);
      margin-bottom: 8px;
    }

    .step-text {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 用户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.92rem;
      color: #333C48;
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .user-avatar-char {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-yellow);
      color: var(--dark-black);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .user-name-role h4 {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--dark-black);
    }

    .user-name-role p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠手风琴 */
    .faq-container {
      max-width: 880px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: #E2B900;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--dark-black);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question:hover {
      background-color: #FFFEEA;
    }

    .faq-toggle-icon {
      width: 22px;
      height: 22px;
      background: #F1F3F5;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: var(--transition);
      flex-shrink: 0;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
      background: var(--primary-yellow);
      color: var(--dark-black);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #FCFDFD;
    }

    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 需求匹配与提交表单 */
    .form-wrapper-box {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 40px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .form-side-info {
      background: linear-gradient(145deg, #FFFDF2 0%, #FFF5BD 100%);
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .form-side-title {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--dark-black);
      margin-bottom: 16px;
    }

    .form-side-desc {
      font-size: 0.95rem;
      color: #4A515A;
      line-height: 1.65;
      margin-bottom: 24px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--dark-black);
    }

    .qrcode-box {
      margin-top: 20px;
      padding: 16px;
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      display: inline-block;
      border: 1px solid rgba(0,0,0,0.06);
    }

    .qrcode-box img {
      max-width: 130px;
      height: auto;
      display: block;
    }

    .form-content-area {
      padding: 40px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark-black);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      background: #FAFBFC;
      color: var(--dark-black);
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--dark-black);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.25);
    }

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

    /* 文章与百科模块 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-item:hover {
      border-color: var(--primary-yellow);
      transform: translateY(-2px);
    }

    .article-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: #795548;
      background: #FBE9E7;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .article-title-text {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-black);
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .article-brief {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 14px;
    }

    .article-link-anchor {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--dark-black);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link-anchor:hover {
      color: #A07400;
    }

    /* 加盟代理模块 */
    .agency-banner {
      background: linear-gradient(135deg, #1A1F24 0%, #2A3038 100%);
      color: #FFFFFF;
      border-radius: var(--radius);
      padding: 50px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 30px;
    }

    .agency-info-left {
      max-width: 680px;
    }

    .agency-info-left h3 {
      font-size: 1.9rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--primary-yellow);
    }

    .agency-info-left p {
      font-size: 1rem;
      color: #C8D1DC;
      line-height: 1.6;
    }

    /* 页脚设计 */
    footer.site-footer {
      background-color: #0F1216;
      color: #8C96A5;
      padding: 60px 0 30px 0;
      border-top: 4px solid var(--primary-yellow);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 28px;
      height: 2px;
      background: var(--primary-yellow);
    }

    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.65;
      margin-bottom: 10px;
    }

    .footer-links-list li {
      margin-bottom: 8px;
    }

    .footer-links-list a {
      color: #A6B1C0;
      font-size: 0.88rem;
    }

    .footer-links-list a:hover {
      color: var(--primary-yellow);
      padding-left: 4px;
    }

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

    .friend-links-wrap a {
      display: inline-block;
      background: #1C2229;
      color: #CBD5E1;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.82rem;
    }

    .friend-links-wrap a:hover {
      background: var(--primary-yellow);
      color: var(--dark-black);
    }

    .footer-bottom-bar {
      border-top: 1px solid #222932;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #717B8A;
    }

    /* 悬浮交互组件 */
    .floating-widgets {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 800;
      font-size: 1.1rem;
      color: var(--dark-black);
      transition: var(--transition);
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary-yellow);
      transform: scale(1.08);
    }

    .float-qr-pop {
      display: none;
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #FFFFFF;
      padding: 12px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 140px;
      text-align: center;
    }

    .float-qr-pop img {
      width: 100%;
      height: auto;
      display: block;
    }

    .float-qr-pop span {
      font-size: 0.75rem;
      color: var(--dark-black);
      font-weight: bold;
      display: block;
      margin-top: 4px;
    }

    .float-btn-kefu:hover .float-qr-pop {
      display: block;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenes-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .workflow-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.1rem;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px 0;
        border-bottom: 2px solid var(--primary-yellow);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        padding: 10px 0;
        width: 100%;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .services-grid, .scenes-grid, .reviews-grid, .articles-grid, .case-gallery-grid, .workflow-grid, .image-strip-row {
        grid-template-columns: 1fr;
      }
      .form-wrapper-box {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }