/* CSS Reset */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    :root {
      --primary: #ff007f; /* 高饱和艳桃红 */
      --secondary: #00f0ff; /* 极光霓虹蓝 */
      --accent: #7000ff; /* 科技电光紫 */
      --dark: #0f172a;
      --light-bg: #f8fafc;
      --text-main: #334155;
      --text-title: #0f172a;
      --white: #ffffff;
      --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
      --neon-shadow: 0 0 20px rgba(255, 0, 127, 0.2);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

    body {
      background-color: var(--light-bg);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* Common Container */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Section Styling */
    section {
      padding: 80px 0;
      position: relative;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      text-align: center;
      color: var(--text-title);
      margin-bottom: 16px;
      position: relative;
    }

    .section-title span {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-subtitle {
      text-align: center;
      color: #64748b;
      max-width: 600px;
      margin: 0 auto 50px auto;
      font-size: 1.1rem;
    }

    /* Header Nav */
    header {
      background-color: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }

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

    .ai-page-logo {
      height: 40px;
      width: auto;
    }

    .logo-text {
      font-size: 1.4rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      gap: 20px;
      list-style: none;
      align-items: center;
    }

    .nav-link {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 500;
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .nav-link:hover {
      color: var(--primary);
    }

    .btn-gradient-sm {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      padding: 8px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: 600;
      font-size: 0.9rem;
      box-shadow: var(--neon-shadow);
      transition: var(--transition);
    }

    .btn-gradient-sm:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 0, 127, 0.4);
    }

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

    .mobile-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--dark);
      border-radius: 3px;
      transition: var(--transition);
    }

    /* Hero Section (No Image) */
    .hero-section {
      padding-top: 150px;
      padding-bottom: 100px;
      background: radial-gradient(circle at 90% 10%, rgba(0, 240, 255, 0.1), transparent 40%),
                  radial-gradient(circle at 10% 90%, rgba(255, 0, 127, 0.1), transparent 40%);
      text-align: center;
    }

    h1.hero-title {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1.2;
      color: var(--dark);
      margin-bottom: 24px;
    }

    h1.hero-title span {
      background: linear-gradient(135deg, var(--primary) 30%, var(--accent) 70%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: #475569;
      max-width: 800px;
      margin: 0 auto 40px auto;
    }

    .hero-btn-group {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 60px;
      flex-wrap: wrap;
    }

    .btn-main {
      padding: 16px 36px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1.1rem;
      text-decoration: none;
      transition: var(--transition);
    }

    .btn-primary-gradient {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      box-shadow: 0 10px 25px rgba(255, 0, 127, 0.3);
    }

    .btn-primary-gradient:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 30px rgba(255, 0, 127, 0.5);
    }

    .btn-outline-gradient {
      background: var(--white);
      color: var(--dark);
      border: 2px solid var(--accent);
    }

    .btn-outline-gradient:hover {
      transform: translateY(-3px);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      border-color: transparent;
    }

    /* Data Cards */
    .data-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
      margin-top: 40px;
    }

    .data-card {
      background: var(--white);
      padding: 30px 20px;
      border-radius: 20px;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
    }

    .data-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
    }

    .data-num {
      font-size: 2.5rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
    }

    .data-label {
      font-size: 0.95rem;
      color: #64748b;
      font-weight: 600;
    }

    /* About Us & Platform Intro */
    .about-section {
      background-color: var(--white);
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: center;
    }

    .intro-rich-text h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
      color: var(--text-title);
    }

    .intro-rich-text p {
      margin-bottom: 16px;
      color: #475569;
    }

    .intro-features {
      margin-top: 30px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .intro-feat-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 600;
      color: var(--text-title);
    }

    .intro-feat-item span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary);
    }

    /* Platform Models Grid */
    .models-showcase {
      background: linear-gradient(135deg, rgba(255, 0, 127, 0.05) 0%, rgba(112, 0, 255, 0.05) 100%);
      padding: 50px 0;
      overflow: hidden;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 1000px;
      margin: 0 auto;
    }

    .model-tag {
      background: var(--white);
      padding: 8px 18px;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-title);
      box-shadow: 0 4px 10px rgba(0,0,0,0.03);
      border: 1px solid rgba(226, 232, 240, 0.5);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      transform: scale(1.05);
    }

    /* Service Capabilities (AIGC Service) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }

    .service-card {
      background: var(--white);
      border-radius: 24px;
      padding: 40px 30px;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
      border-color: var(--secondary);
    }

    .service-icon {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--secondary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      font-size: 1.8rem;
      margin-bottom: 24px;
    }

    .service-card h3 {
      font-size: 1.4rem;
      color: var(--text-title);
      margin-bottom: 12px;
    }

    .service-card p {
      color: #64748b;
      margin-bottom: 20px;
      font-size: 0.95rem;
    }

    /* Solutions Section */
    .solution-section {
      background-color: var(--white);
    }

    .solutions-tabs {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .tab-btn {
      padding: 10px 24px;
      border-radius: 50px;
      border: 2px solid #e2e8f0;
      background: var(--white);
      color: var(--text-main);
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .tab-btn.active, .tab-btn:hover {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      border-color: transparent;
    }

    .solution-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .solution-img-container {
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
    }

    .solution-img-container img {
      width: 100%;
      display: block;
    }

    .solution-text h3 {
      font-size: 1.8rem;
      margin-bottom: 16px;
      color: var(--text-title);
    }

    .solution-list {
      list-style: none;
      margin-top: 20px;
    }

    .solution-list li {
      margin-bottom: 12px;
      padding-left: 28px;
      position: relative;
      font-weight: 500;
    }

    .solution-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: 900;
      font-size: 1.2rem;
    }

    /* Standard AIGC Process / Steps */
    .steps-section {
      background: #0f172a; /* 使用暗色对比，衬托艳彩 */
      color: #94a3b8;
    }

    .steps-section .section-title {
      color: var(--white);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 30px;
      margin-top: 50px;
    }

    .step-card {
      position: relative;
      padding: 30px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: var(--transition);
    }

    .step-card:hover {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--primary);
      transform: translateY(-5px);
    }

    .step-num {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 15px;
    }

    .step-title {
      font-size: 1.2rem;
      color: var(--white);
      margin-bottom: 10px;
      font-weight: 700;
    }

    /* Cases & Portfolio */
    .case-section {
      background: var(--white);
    }

    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }

    .case-card {
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      background: var(--white);
      border: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    }

    .case-img-wrap {
      height: 200px;
      overflow: hidden;
    }

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

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

    .case-info {
      padding: 24px;
    }

    .case-tag {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 700;
      background: rgba(255, 0, 127, 0.1);
      color: var(--primary);
      margin-bottom: 12px;
    }

    .case-info h3 {
      font-size: 1.2rem;
      color: var(--text-title);
      margin-bottom: 8px;
    }

    .case-info p {
      color: #64748b;
      font-size: 0.9rem;
    }

    /* Comparison Table (对比评测) */
    .eval-section {
      background-color: var(--light-bg);
    }

    .eval-highlight {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 40px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .eval-score-card {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      padding: 30px 50px;
      border-radius: 24px;
      text-align: center;
      box-shadow: var(--neon-shadow);
    }

    .eval-score-num {
      font-size: 4rem;
      font-weight: 900;
      line-height: 1;
    }

    .eval-score-star {
      font-size: 1.5rem;
      margin: 8px 0;
      color: #ffd700;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: 20px;
      box-shadow: var(--card-shadow);
      background: var(--white);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 800px;
    }

    .eval-table th, .eval-table td {
      padding: 18px 24px;
      border-bottom: 1px solid #e2e8f0;
    }

    .eval-table th {
      background-color: #f1f5f9;
      color: var(--text-title);
      font-weight: 700;
    }

    .eval-table tr:last-child td {
      border-bottom: none;
    }

    .eval-table td strong {
      color: var(--primary);
    }

    /* Token Price list (Token比价参考) */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .token-card {
      background: var(--white);
      border-radius: 16px;
      padding: 24px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }

    .token-card:hover {
      border-color: var(--primary);
      box-shadow: var(--card-shadow);
    }

    .token-name {
      font-weight: 700;
      color: var(--text-title);
    }

    .token-price {
      text-align: right;
    }

    .token-price .now {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--primary);
    }

    .token-price .old {
      font-size: 0.85rem;
      text-decoration: line-through;
      color: #94a3b8;
    }

    /* Training section */
    .training-section {
      background-color: var(--white);
    }

    .train-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
    }

    .train-card {
      background: var(--light-bg);
      border-radius: 20px;
      padding: 30px 24px;
      text-align: center;
      border: 1px solid rgba(226, 232, 240, 0.6);
      transition: var(--transition);
    }

    .train-card:hover {
      transform: translateY(-5px);
      border-color: var(--accent);
      background: var(--white);
      box-shadow: var(--card-shadow);
    }

    .train-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 50px;
      font-size: 0.75rem;
      background: rgba(112, 0, 255, 0.1);
      color: var(--accent);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .train-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 10px;
    }

    /* FAQ (Accordion) */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      align-items: start;
    }

    .faq-item {
      background: var(--white);
      border-radius: 16px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-trigger {
      width: 100%;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-title);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-trigger::after {
      content: "+";
      font-size: 1.5rem;
      font-weight: 400;
      color: var(--primary);
      transition: var(--transition);
    }

    .faq-item.active .faq-trigger::after {
      content: "−";
      transform: rotate(180deg);
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: #fafbfc;
    }

    .faq-content-inner {
      padding: 0 24px 20px 24px;
      color: #475569;
      font-size: 0.95rem;
    }

    /* Testimonials (客户评论) */
    .comment-section {
      background-color: var(--white);
    }

    .comment-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }

    .comment-card {
      background: var(--light-bg);
      border-radius: 20px;
      padding: 30px;
      border: 1px solid rgba(226, 232, 240, 0.6);
      position: relative;
    }

    .comment-text {
      font-style: italic;
      color: #475569;
      margin-bottom: 20px;
    }

    .comment-user {
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .user-info h4 {
      font-size: 1rem;
      color: var(--text-title);
      font-weight: 700;
    }

    .user-info p {
      font-size: 0.8rem;
      color: #94a3b8;
    }

    /* Article List / Info Hub */
    .article-section {
      background-color: var(--light-bg);
    }

    .article-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }

    .article-card {
      background: var(--white);
      border-radius: 16px;
      padding: 24px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .article-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 12px;
    }

    .article-card p {
      font-size: 0.9rem;
      color: #64748b;
      margin-bottom: 20px;
    }

    .article-link {
      color: var(--primary);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* Form & Contact Us */
    .contact-section {
      background-color: var(--white);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
    }

    .form-wrapper {
      background: var(--light-bg);
      padding: 40px;
      border-radius: 24px;
      border: 1px solid #e2e8f0;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      margin-bottom: 8px;
      font-weight: 700;
      color: var(--text-title);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 10px;
      border: 1px solid #cbd5e1;
      background-color: var(--white);
      font-family: inherit;
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 0, 127, 0.15);
    }

    .btn-submit {
      width: 100%;
      padding: 14px;
      border: none;
      border-radius: 10px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--white);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      cursor: pointer;
      box-shadow: var(--neon-shadow);
      transition: var(--transition);
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 0, 127, 0.4);
    }

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .info-card {
      background: var(--light-bg);
      border-radius: 20px;
      padding: 24px;
      border: 1px solid #e2e8f0;
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .info-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(255, 0, 127, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      font-weight: 700;
    }

    .info-card-detail h4 {
      font-weight: 700;
      color: var(--text-title);
    }

    .info-card-detail p {
      font-size: 0.95rem;
      color: #64748b;
    }

    .kefu-qrcode-wrap {
      margin-top: 20px;
      background: var(--white);
      padding: 20px;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      text-align: center;
    }

    .kefu-qrcode-wrap img {
      max-width: 140px;
      height: auto;
      margin-bottom: 10px;
    }

    /* Footer & Links */
    footer {
      background-color: var(--dark);
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-logo-desc h3 {
      color: var(--white);
      font-size: 1.5rem;
      margin-bottom: 16px;
      font-weight: 800;
    }

    .footer-links h4, .footer-contact h4 {
      color: var(--white);
      margin-bottom: 20px;
      font-weight: 700;
    }

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

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .friend-links-area {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      margin-bottom: 30px;
    }

    .friend-links-title {
      font-size: 0.9rem;
      color: #64748b;
      margin-bottom: 12px;
      font-weight: 700;
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
    }

    .friend-links-wrap a {
      color: #64748b;
      text-decoration: none;
      font-size: 0.85rem;
      transition: var(--transition);
    }

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

    .copyright-area {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
      font-size: 0.85rem;
    }

    /* Fixed Float Components */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 20px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--white);
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      color: var(--dark);
      cursor: pointer;
      position: relative;
      transition: var(--transition);
      border: 1px solid #e2e8f0;
    }

    .float-btn:hover {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: var(--white);
      transform: translateY(-3px);
    }

    .kefu-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: var(--white);
      border-radius: 12px;
      padding: 16px;
      box-shadow: var(--card-shadow);
      border: 1px solid #e2e8f0;
      display: none;
      width: 160px;
      text-align: center;
    }

    .kefu-popover img {
      width: 100%;
      height: auto;
      margin-bottom: 8px;
    }

    .kefu-popover p {
      font-size: 0.75rem;
      color: var(--text-title);
      font-weight: 700;
    }

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

    /* Responsive Grid and Custom media queries */
    @media (max-width: 992px) {
      .mobile-toggle {
        display: flex;
      }

      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        border-bottom: 1px solid #e2e8f0;
        transform: translateY(-150%);
        transition: transform 0.3s ease-in-out;
      }

      .nav-menu.active {
        transform: translateY(0);
      }

      h1.hero-title {
        font-size: 2.5rem;
      }

      .about-grid, .solution-content, .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .faq-grid {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }
    }