:root {
      --candy-pink: #FF3366;
      --candy-coral: #FF6B8B;
      --candy-purple: #7928CA;
      --candy-blue: #0070F3;
      --candy-cyan: #00DFD8;
      --candy-yellow: #FFB800;
      --candy-green: #00C853;
      --candy-bg-soft: #FFF9FA;
      --candy-card-bg: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #F1E5E9;
      --candy-shadow: 0 12px 30px -8px rgba(255, 51, 102, 0.12);
      --candy-shadow-hover: 0 20px 40px -10px rgba(121, 40, 202, 0.2);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --container-max: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--candy-bg-soft);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 107, 139, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 223, 216, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(121, 40, 202, 0.04) 0%, transparent 60%);
      background-attachment: fixed;
    }

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

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

    /* Container */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    }

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

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

    .brand-logo-wrap {
      max-width: 140px;
      height: 40px;
      display: flex;
      align-items: center;
    }

    .ai-page-home-link {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--candy-pink);
      background: #FFE8EE;
      border-radius: var(--radius-full);
      margin-left: 6px;
    }

    .ai-page-home-link:hover {
      background: var(--candy-pink);
      color: #FFF;
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 10px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      white-space: nowrap;
    }

    .nav-links li a:hover {
      color: var(--candy-pink);
      background: rgba(255, 51, 102, 0.06);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-candy-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple));
      color: #FFF !important;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 20px -4px rgba(255, 51, 102, 0.4);
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-candy-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 24px -4px rgba(121, 40, 202, 0.5);
    }

    .btn-candy-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #FFFFFF;
      color: var(--candy-purple) !important;
      border: 2px solid #EBD5FA;
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      transition: var(--transition);
    }

    .btn-candy-secondary:hover {
      border-color: var(--candy-purple);
      background: #FAF3FF;
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      padding: 6px;
    }

    /* Sections Shared Style */
    .section-padding {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .badge-tag {
      display: inline-block;
      padding: 6px 16px;
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--candy-purple);
      background: #F3E8FF;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      border: 1px solid #E9D5FF;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

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

    /* Hero Section - STRICTLY NO IMAGES */
    .hero-section {
      padding: 80px 0 60px 0;
      position: relative;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFF;
      border: 1px solid #FFE0E8;
      box-shadow: 0 4px 15px rgba(255, 51, 102, 0.1);
      padding: 6px 18px;
      border-radius: var(--radius-full);
      margin-bottom: 24px;
      font-size: 0.9rem;
      color: var(--candy-pink);
      font-weight: 600;
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -1px;
      color: #0F172A;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple), var(--candy-blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-hero-official {
      padding: 16px 36px;
      font-size: 1.1rem;
      font-weight: 700;
      background: linear-gradient(135deg, #FF3366, #FF6B8B, #7928CA);
      color: #FFF !important;
      border-radius: var(--radius-full);
      box-shadow: 0 15px 35px rgba(255, 51, 102, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      transition: var(--transition);
      border: none;
    }

    .btn-hero-official:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 20px 45px rgba(121, 40, 202, 0.45);
    }

    /* Hero Pure CSS Feature Grid */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .metric-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      box-shadow: var(--candy-shadow);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--candy-pink), var(--candy-yellow), var(--candy-cyan));
    }

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

    .metric-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--candy-pink);
      line-height: 1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* Model Cloud Carousel/Tags */
    .model-tags-wrapper {
      background: #FFF;
      border: 1px solid #FFE4E9;
      border-radius: var(--radius-md);
      padding: 20px;
      margin-top: 30px;
      box-shadow: 0 8px 25px rgba(255, 51, 102, 0.05);
    }

    .model-tags-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
      text-align: center;
    }

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

    .model-pill {
      font-size: 0.8rem;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-weight: 600;
      background: #F8FAFC;
      color: #334155;
      border: 1px solid #E2E8F0;
      transition: var(--transition);
    }

    .model-pill:hover {
      background: #FFE8EE;
      color: var(--candy-pink);
      border-color: #FFCCD5;
      transform: scale(1.05);
    }

    /* Platform Overview / About */
    .about-box-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid #F8D7DA;
      box-shadow: var(--candy-shadow);
      padding: 40px;
      margin-bottom: 40px;
    }

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

    .about-feature-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .about-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #334155;
    }

    .about-feature-dot {
      width: 10px;
      height: 10px;
      background: var(--candy-pink);
      border-radius: 50%;
      margin-top: 6px;
      flex-shrink: 0;
    }

    /* Core Services Grid (12-column dynamic) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--candy-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--candy-shadow-hover);
      border-color: #FFB3C6;
    }

    .service-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #FFE5EC, #FFF0F5);
      color: var(--candy-pink);
    }

    .service-card:nth-child(2n) .service-icon {
      background: linear-gradient(135deg, #E8F4FD, #E0F2FE);
      color: var(--candy-blue);
    }

    .service-card:nth-child(3n) .service-icon {
      background: linear-gradient(135deg, #F3E8FF, #EDE9FE);
      color: var(--candy-purple);
    }

    .service-card:nth-child(4n) .service-icon {
      background: linear-gradient(135deg, #FEF3C7, #FFFBEB);
      color: #D97706;
    }

    .service-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .service-badge-strip {
      margin-top: 18px;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .mini-badge {
      font-size: 0.75rem;
      padding: 2px 8px;
      background: #F1F5F9;
      color: #475569;
      border-radius: 4px;
      font-weight: 500;
    }

    /* Workflow Steps */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #FFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px 20px;
      position: relative;
      text-align: center;
      box-shadow: var(--candy-shadow);
      transition: var(--transition);
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: var(--candy-pink);
    }

    .step-num {
      width: 44px;
      height: 44px;
      line-height: 44px;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple));
      color: #FFF;
      font-weight: 800;
      border-radius: 50%;
      margin: 0 auto 16px auto;
      font-size: 1.2rem;
      box-shadow: 0 6px 15px rgba(255, 51, 102, 0.3);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Showcase & Material Images Section */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 20px;
      align-items: center;
    }

    .case-img-card {
      background: #FFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--candy-shadow);
      transition: var(--transition);
    }

    .case-img-card:hover {
      transform: scale(1.02);
      box-shadow: var(--candy-shadow-hover);
    }

    .case-img-card img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }

    .case-img-card.large img {
      height: 380px;
    }

    .case-img-info {
      padding: 16px;
    }

    .case-img-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .case-img-subtitle {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Comparison Review Section */
    .review-score-hero {
      background: linear-gradient(135deg, #FFF0F5, #F5F3FF);
      border: 2px solid #FFCCD5;
      border-radius: var(--radius-lg);
      padding: 36px;
      text-align: center;
      margin-bottom: 40px;
      box-shadow: var(--candy-shadow);
    }

    .score-badge {
      display: inline-block;
      font-size: 3rem;
      font-weight: 900;
      color: var(--candy-pink);
      line-height: 1;
    }

    .score-stars {
      color: #FFB800;
      font-size: 1.5rem;
      margin: 10px 0;
    }

    .table-container {
      background: #FFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--candy-shadow);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #F1F5F9;
    }

    .custom-table th {
      background: #FAFAFC;
      font-weight: 700;
      color: #334155;
    }

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

    .highlight-col {
      background: #FFF5F7;
      font-weight: 600;
      color: var(--candy-pink);
    }

    /* Token Comparison Section */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #FFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 30px 24px;
      box-shadow: var(--candy-shadow);
      position: relative;
      transition: var(--transition);
    }

    .token-card.featured {
      border: 2px solid var(--candy-pink);
      transform: scale(1.03);
    }

    .token-card-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple));
      color: #FFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-full);
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin: 16px 0;
    }

    .token-price span {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    /* Testimonials Section (6 Users) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #FFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px 22px;
      box-shadow: var(--candy-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .testimonial-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--candy-shadow-hover);
      border-color: #E9D5FF;
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }

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

    .author-avatar-text {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #FFE4E9, #E0E7FF);
      color: var(--candy-purple);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ Accordion */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0,0,0,0.02);
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--candy-pink);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--candy-pink);
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--candy-pink);
      transition: var(--transition);
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #FFFDFE;
      color: #475569;
      font-size: 0.95rem;
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px 24px;
    }

    /* Articles Section */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .article-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--candy-blue);
      background: #E0F2FE;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 12px;
      width: fit-content;
    }

    .article-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .article-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 16px;
    }

    .article-link-btn {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--candy-pink);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link-btn:hover {
      text-decoration: underline;
    }

    /* Contact & Form Section */
    .contact-card-wrapper {
      background: #FFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--candy-shadow);
      padding: 48px;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 48px;
    }

    .contact-info-col {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
    }

    .contact-icon-bubble {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: #FFE8EE;
      color: var(--candy-pink);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    .qr-box {
      margin-top: 24px;
      padding: 16px;
      background: #FFF5F7;
      border-radius: var(--radius-md);
      border: 1px dashed #FFCCD5;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      max-width: 180px;
    }

    .qr-box img {
      width: 130px;
      height: 130px;
      border-radius: 8px;
      margin-bottom: 8px;
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: #334155;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #FFF;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--candy-pink);
      box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.15);
    }

    .form-submit-btn {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple));
      color: #FFF;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 8px 20px rgba(255, 51, 102, 0.35);
      transition: var(--transition);
    }

    .form-submit-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(121, 40, 202, 0.45);
    }

    /* Agency Franchise Box */
    .agency-banner {
      background: linear-gradient(135deg, #FF6B8B, #7928CA);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      color: #FFF;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 40px -10px rgba(121, 40, 202, 0.4);
    }

    .agency-banner h3 {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .agency-banner p {
      font-size: 1.1rem;
      max-width: 700px;
      margin: 0 auto 30px auto;
      opacity: 0.95;
    }

    /* Footer */
    .site-footer {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px 0;
      margin-top: 60px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

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

    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

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

    .friend-links-box {
      border-top: 1px solid #F1F5F9;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.88rem;
    }

    .friend-links-list a {
      color: var(--text-muted);
      padding: 4px 10px;
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      border: 1px solid #E2E8F0;
    }

    .friend-links-list a:hover {
      color: var(--candy-pink);
      border-color: #FFCCD5;
      background: #FFF5F7;
    }

    .footer-bottom {
      border-top: 1px solid #F1F5F9;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #94A3B8;
    }

    /* Floating Widget */
    .floating-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .kefu-trigger-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple));
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 25px rgba(255, 51, 102, 0.4);
      cursor: pointer;
      font-size: 1.4rem;
      border: none;
      transition: var(--transition);
    }

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

    .back-to-top {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #FFF;
      color: var(--text-main);
      border: 1px solid #E2E8F0;
      box-shadow: 0 4px 15px rgba(0,0,0,0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.1rem;
      transition: var(--transition);
    }

    .back-to-top:hover {
      background: var(--candy-pink);
      color: #FFF;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .services-grid, .token-grid, .testimonials-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics-grid, .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-gallery-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .about-grid, .contact-card-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 24px;
      }
      .services-grid, .token-grid, .testimonials-grid, .articles-grid, .hero-metrics-grid, .steps-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }