/* ================= 基础重置与明亮鲜黄配色 ================= */
    :root {
      --primary: #FFCC00;
      --primary-hover: #E6B800;
      --primary-light: #FFF9E6;
      --primary-glow: rgba(255, 204, 0, 0.4);
      --accent: #FF9900;
      --dark: #1E2229;
      --dark-card: #282D37;
      --text-main: #2C323F;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --bg-main: #FDFDFD;
      --bg-alt: #F8FAFC;
      --bg-card: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(255,204,0,0.12);
      --shadow-lg: 0 16px 36px rgba(30,34,41,0.08);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --container-width: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    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(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
      box-sizing: border-box;
    }

    /* ================= 顶栏导航 ================= */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    }

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

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

    .brand-logo-wrap {
      max-width: 140px;
      height: auto;
      display: flex;
      align-items: center;
    }

    .brand-tagline {
      font-size: 12px;
      font-weight: 700;
      background: var(--primary);
      color: var(--dark);
      padding: 2px 8px;
      border-radius: 4px;
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      display: block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: #000000;
      background: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #000000;
      box-shadow: 0 4px 12px var(--primary-glow);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px var(--primary-glow);
    }

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

    .btn-dark:hover {
      background: #0F1217;
      transform: translateY(-2px);
    }

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

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

    .mobile-menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 3px;
      background: var(--dark);
      border-radius: 2px;
      transition: var(--transition);
    }

    /* ================= 首屏 HERO（禁止包含图片） ================= */
    .hero-section {
      background: linear-gradient(180deg, #FFFDEB 0%, #FFFFFF 100%);
      padding: 80px 0 60px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-bg-shapes {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 1;
    }

    .shape-circle {
      position: absolute;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,204,0,0.2) 0%, rgba(255,255,255,0) 70%);
      top: -100px;
      right: -100px;
    }

    .shape-grid {
      position: absolute;
      inset: 0;
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: var(--dark);
      font-weight: 800;
      font-size: 13px;
      padding: 6px 18px;
      border-radius: 30px;
      margin-bottom: 24px;
      box-shadow: 0 4px 12px var(--primary-glow);
      text-transform: uppercase;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: var(--dark);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(120deg, #1E2229 60%, #E6B800 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-main {
      font-size: 16px;
      padding: 14px 34px;
      background: var(--primary);
      color: #000000;
      border-radius: var(--radius-md);
      font-weight: 800;
      box-shadow: 0 8px 24px var(--primary-glow);
    }

    .btn-hero-main:hover {
      background: #FFD633;
      transform: translateY(-3px);
      box-shadow: 0 12px 30px var(--primary-glow);
    }

    .btn-hero-sub {
      font-size: 16px;
      padding: 14px 32px;
      border-radius: var(--radius-md);
      background: #FFFFFF;
      border: 2px solid var(--dark);
      color: var(--dark);
      font-weight: 700;
    }

    .btn-hero-sub:hover {
      background: var(--dark);
      color: #FFFFFF;
      transform: translateY(-3px);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .stat-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .stat-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 4px;
    }

    .stat-num em {
      font-style: normal;
      color: var(--accent);
      font-size: 20px;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* ================= 通用 Section 规范 ================= */
    section {
      padding: 72px 0;
      position: relative;
    }

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

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

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      background: var(--primary-light);
      color: #996B00;
      border: 1px solid var(--primary);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ================= 平台介绍与多模型聚合 ================= */
    .about-intro-box {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-sm);
    }

    .about-highlight-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .about-title-text {
      font-size: 24px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .about-lead {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
    }

    .models-chip-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
      padding-top: 24px;
      border-top: 1px dashed var(--border-color);
    }

    .model-chip {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      color: var(--dark);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .model-chip::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
    }

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

    /* ================= 核心服务与一站式制作 ================= */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      border-color: var(--primary);
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    .service-icon-wrap {
      width: 52px;
      height: 52px;
      background: var(--primary-light);
      border: 2px solid var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 20px;
    }

    .service-name {
      font-size: 19px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }

    .service-tag-item {
      font-size: 12px;
      background: #F1F5F9;
      color: #475569;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* ================= 行业方案与场景覆盖 ================= */
    .solutions-tabs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
    }

    .solution-item:hover {
      border-color: var(--dark);
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }

    .solution-head {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .solution-badge {
      width: 28px;
      height: 28px;
      background: var(--primary);
      color: var(--dark);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 14px;
    }

    .solution-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark);
    }

    .solution-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ================= 标准交付流程 ================= */
    .workflow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .step-number {
      font-size: 36px;
      font-weight: 900;
      color: #E2E8F0;
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-card:hover .step-number {
      color: var(--primary);
    }

    .step-title {
      font-size: 17px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ================= 案例中心（含要求真实图片） ================= */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-5px);
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      background: #F1F5F9;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-type-tag {
      font-size: 11px;
      font-weight: 700;
      color: #996B00;
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 10px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .promo-banner-wrap {
      margin-top: 36px;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    /* ================= 对比评测 (满分10 评分9.9 五星推荐) ================= */
    .evaluation-card {
      background: #FFFFFF;
      border: 2px solid var(--dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 12px 32px rgba(0,0,0,0.06);
    }

    .eval-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      padding-bottom: 24px;
      border-bottom: 2px dashed var(--border-color);
      margin-bottom: 28px;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #FFF9E6;
      border: 2px solid var(--primary);
      padding: 12px 24px;
      border-radius: var(--radius-md);
    }

    .score-stars {
      color: #FF9900;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .score-num-box {
      font-size: 28px;
      font-weight: 900;
      color: var(--dark);
    }

    .score-num-box span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
    }

    .eval-table-wrap {
      overflow-x: auto;
    }

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

    .eval-table th,
    .eval-table td {
      padding: 16px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .eval-table th {
      background: #F8FAFC;
      font-weight: 800;
      color: var(--dark);
    }

    .eval-table th.highlight-col,
    .eval-table td.highlight-col {
      background: #FFFDF5;
      font-weight: 700;
      color: var(--dark);
      border-left: 2px solid var(--primary);
      border-right: 2px solid var(--primary);
    }

    .status-check {
      color: #10B981;
      font-weight: 800;
    }

    .status-cross {
      color: #94A3B8;
    }

    /* ================= Token比价优势 ================= */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
      transform: scale(1.02);
    }

    .pricing-card-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: var(--dark);
      font-size: 12px;
      font-weight: 800;
      padding: 3px 14px;
      border-radius: 12px;
    }

    .pricing-tier-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .pricing-tier-price {
      font-size: 34px;
      font-weight: 900;
      color: var(--dark);
      margin: 16px 0;
    }

    .pricing-tier-price span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .pricing-features-list {
      list-style: none;
      text-align: left;
      margin: 20px 0;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }

    .pricing-features-list li {
      font-size: 13px;
      color: var(--text-main);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* ================= 用户真实评价 (6条) ================= */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

    .testimonial-text {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 18px;
      position: relative;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 14px;
      border-top: 1px solid #F1F5F9;
    }

    .user-avatar {
      width: 42px;
      height: 42px;
      background: var(--primary);
      color: var(--dark);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
    }

    .user-meta-name {
      font-size: 14px;
      font-weight: 800;
      color: var(--dark);
    }

    .user-meta-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ================= FAQ 折叠面板 (>=10条) ================= */
    .faq-accordion-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item:hover {
      border-color: var(--primary);
    }

    .faq-question-btn {
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 800;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-icon-indicator {
      width: 24px;
      height: 24px;
      background: var(--primary-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--dark);
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }

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

    .faq-answer-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #FAFAFA;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer-panel {
      padding: 16px 24px 22px;
      max-height: 260px;
      border-top: 1px solid #F1F5F9;
    }

    .faq-answer-panel p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ================= 行业资讯与文章 ================= */
    .articles-section-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .article-link-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 18px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      color: var(--dark);
    }

    .article-link-card:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }

    /* ================= 加盟代理与被动收益 ================= */
    .partner-banner {
      background: linear-gradient(135deg, #1E2229 0%, #2D3340 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      border-top: 4px solid var(--primary);
    }

    .partner-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .partner-title {
      font-size: 28px;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 14px;
    }

    .partner-title span {
      color: var(--primary);
    }

    .partner-desc {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .partner-perks {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 28px;
    }

    .perk-pill {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 204, 0, 0.3);
      padding: 8px 14px;
      border-radius: 6px;
      font-size: 13px;
      color: #FFFFFF;
    }

    /* ================= 联系我们与表单 ================= */
    .contact-layout-grid {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 36px;
    }

    .contact-info-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .contact-item-row {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 20px;
    }

    .contact-icon-box {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--dark);
      flex-shrink: 0;
    }

    .contact-row-title {
      font-size: 14px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 2px;
    }

    .contact-row-val {
      font-size: 14px;
      color: var(--text-muted);
    }

    .qr-showcase {
      margin-top: 24px;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .qr-img-box {
      width: 110px;
      height: 110px;
      background: #F1F5F9;
      border: 1px solid var(--border-color);
      padding: 6px;
      border-radius: 8px;
    }

    /* 表单组件 */
    .form-card {
      background: #FFFFFF;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #FFFFFF;
      color: var(--text-main);
      box-sizing: border-box;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--dark);
      box-shadow: 0 0 0 3px rgba(255,204,0,0.25);
    }

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

    /* ================= 友情链接与页脚 ================= */
    .site-footer {
      background: #181B20;
      color: #94A3B8;
      border-top: 4px solid var(--primary);
      padding: 56px 0 30px;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-brand-title {
      font-size: 20px;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 12px;
    }

    .footer-brand-desc {
      font-size: 13px;
      line-height: 1.7;
      color: #94A3B8;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 6px;
    }

    .footer-col-title::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }

    .footer-links-list {
      list-style: none;
    }

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

    .footer-links-list a {
      font-size: 13px;
      color: #94A3B8;
    }

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

    .footer-friends-bar {
      padding: 20px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 24px;
      font-size: 13px;
    }

    .footer-friends-bar span {
      font-weight: 700;
      color: #FFFFFF;
    }

    .footer-friends-bar a {
      color: #94A3B8;
      padding: 2px 6px;
    }

    .footer-friends-bar a:hover {
      color: var(--primary);
    }

    .footer-bottom-bar {
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }

    /* ================= 浮动挂件 & 返回顶部 ================= */
    .float-widget-container {
      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: 2px solid var(--dark);
      color: var(--dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 13px;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn.float-kefu {
      background: var(--primary);
      border-color: var(--dark);
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* ================= 响应式调整 ================= */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 32px;
      }
      .hero-stats-grid,
      .services-grid,
      .solutions-tabs-grid,
      .workflow-steps-grid,
      .cases-grid,
      .token-pricing-grid,
      .testimonials-grid,
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partner-grid,
      .contact-layout-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 2px solid var(--primary);
        box-shadow: var(--shadow-lg);
        gap: 0;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
      }
      .hero-stats-grid,
      .services-grid,
      .solutions-tabs-grid,
      .workflow-steps-grid,
      .cases-grid,
      .token-pricing-grid,
      .testimonials-grid,
      .article-links-grid,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 26px;
      }
      .hero-desc {
        font-size: 15px;
      }
    }