:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --accent-orange: #ff5722;
      --accent-yellow: #ffb703;
      --accent-purple: #7c3aed;
      --accent-cyan: #06b6d4;
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-width: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    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(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

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

    /* Header & Navigation */
    header.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(--border-color);
      transition: box-shadow 0.3s ease;
    }

    header.site-header.scrolled {
      box-shadow: var(--shadow-sm);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .brand-logo-wrap {
      max-height: 42px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .brand-badge {
      background: var(--accent-orange);
      color: #ffffff;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
      margin-left: 4px;
    }

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

    .nav-links li a {
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: color 0.2s ease, background 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: #eff6ff;
    }

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

    .nav-toggle-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .nav-toggle-btn svg {
      width: 26px;
      height: 26px;
      stroke: var(--text-main);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      text-decoration: none;
      border-radius: 100px;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: 2px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
    }

    .btn-accent {
      background: var(--accent-orange);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 87, 34, 0.35);
    }

    .btn-accent:hover {
      background: #e64a19;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 87, 34, 0.45);
    }

    .btn-contrast-yellow {
      background: var(--accent-yellow);
      color: #0f172a;
      box-shadow: 0 4px 14px rgba(255, 183, 3, 0.4);
    }

    .btn-contrast-yellow:hover {
      background: #f59e0b;
      transform: translateY(-2px);
    }

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

    .btn-outline:hover {
      background: #eff6ff;
      transform: translateY(-2px);
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 1.1rem;
    }

    /* Section Utility */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 100px;
      margin-bottom: 12px;
      background: #e0f2fe;
      color: var(--primary);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      background: radial-gradient(circle at 10% 20%, #eff6ff 0%, #ffffff 70%, #fff7ed 100%);
      padding: 70px 0 80px;
      border-bottom: 2px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tag-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .hero-tag {
      font-size: 0.8rem;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 6px;
      background: #eff6ff;
      color: var(--primary);
      border: 1px solid #bfdbfe;
    }

    .hero-tag.hot {
      background: #fff1f2;
      color: #e11d48;
      border-color: #fecdd3;
    }

    h1.hero-main-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .hero-main-title span {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 50%, var(--accent-orange) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-sub);
      margin-bottom: 32px;
      line-height: 1.75;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-feature-points {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: 600;
    }

    .hero-feature-points span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-feature-points svg {
      width: 18px;
      height: 18px;
      fill: var(--accent-orange);
    }

    /* Hero Pure CSS/Geometric Tech Card */
    .hero-tech-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .tech-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-color);
    }

    .tech-dots {
      display: flex;
      gap: 6px;
    }

    .tech-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
    }

    .dot-red { background: #ef4444; }
    .dot-yellow { background: #f59e0b; }
    .dot-green { background: #10b981; }

    .tech-card-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .model-chips-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 20px;
    }

    .model-chip {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      padding: 8px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-main);
      text-align: center;
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    .tech-stat-row {
      background: #f8fafc;
      border-radius: var(--radius-md);
      padding: 16px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      border: 1px dashed #cbd5e1;
    }

    .tech-stat-item {
      text-align: center;
    }

    .tech-stat-num {
      font-size: 1.4rem;
      font-weight: 900;
      color: var(--accent-orange);
    }

    .tech-stat-label {
      font-size: 0.75rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .intro-card {
      background: var(--bg-card);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

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

    .intro-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-weight: 900;
      font-size: 1.3rem;
    }

    .icon-blue { background: #dbeafe; color: var(--primary); }
    .icon-orange { background: #ffedd5; color: var(--accent-orange); }
    .icon-purple { background: #f3e8ff; color: var(--accent-purple); }
    .icon-yellow { background: #fef9c3; color: #b45309; }
    .icon-cyan { background: #cffafe; color: #0e7490; }
    .icon-green { background: #dcfce7; color: #15803d; }

    .intro-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .intro-card p {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* Section: AIGC Services (Big Grid with High-Contrast Colors) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      border-color: var(--accent-orange);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .service-header {
      margin-bottom: 12px;
    }

    .service-badge {
      font-size: 0.7rem;
      font-weight: 800;
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      background: #f1f5f9;
      color: var(--text-sub);
      margin-bottom: 8px;
    }

    .service-card h3 {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .service-card p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.55;
      margin-bottom: 14px;
    }

    .service-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .service-link:hover {
      color: var(--accent-orange);
    }

    /* Section: Models Supported Cloud */
    .models-cloud-wrap {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .models-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-pill {
      background: #f8fafc;
      border: 1.5px solid #e2e8f0;
      padding: 8px 18px;
      border-radius: 100px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: #eff6ff;
      border-color: var(--primary);
      color: var(--primary);
      transform: scale(1.05);
    }

    /* Process Workflow Section */
    .process-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .step-number {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 900;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    .step-card:nth-child(2) .step-number { background: var(--accent-orange); }
    .step-card:nth-child(3) .step-number { background: var(--accent-purple); }
    .step-card:nth-child(4) .step-number { background: var(--accent-cyan); }

    .step-card h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    /* Showcase / Banner Section with Real Images */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .showcase-item {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .showcase-img-wrap {
      width: 100%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .showcase-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

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

    .showcase-content {
      padding: 20px;
    }

    .showcase-content h3 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .showcase-content p {
      font-size: 0.88rem;
      color: var(--text-sub);
    }

    /* Media Materials Section (Horizontal & Square Assets) */
    .materials-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      align-items: start;
    }

    .material-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .material-image-box {
      margin-bottom: 16px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .material-image-box img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Comparison & Review Section */
    .compare-wrap {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      padding: 24px 32px;
      border-radius: var(--radius-md);
      margin-bottom: 32px;
    }

    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--accent-yellow);
      line-height: 1;
    }

    .score-total {
      font-size: 1.2rem;
      color: #cbd5e1;
    }

    .stars-box {
      color: var(--accent-yellow);
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .compare-table-responsive {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

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

    .compare-table th {
      background: #f8fafc;
      font-weight: 800;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    .compare-table td {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    .compare-table tr:hover td {
      background: #f8fafc;
    }

    .highlight-cell {
      color: var(--primary);
      font-weight: 700;
      background: #eff6ff;
    }

    /* Token Price Reference Table */
    .token-table-wrap {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      overflow-x: auto;
    }

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

    .review-card {
      background: #ffffff;
      border: 2px 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;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar-char {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #eff6ff;
      color: var(--primary);
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid #bfdbfe;
    }

    .review-user-info h3 {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .review-user-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-card p.review-body {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

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

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

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

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }

    .faq-question svg {
      width: 20px;
      height: 20px;
      transition: transform 0.25s ease;
      stroke: var(--text-muted);
    }

    .faq-item.active .faq-question svg {
      transform: rotate(180deg);
      stroke: var(--primary);
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    .article-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-purple);
      background: #f3e8ff;
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
      align-self: flex-start;
    }

    .article-card h3 {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-card p {
      font-size: 0.88rem;
      color: var(--text-sub);
      margin-bottom: 16px;
    }

    .article-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* Agency & Franchise Banner */
    .agency-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
      box-shadow: var(--shadow-lg);
    }

    .agency-banner h2 {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 16px;
      color: #ffffff;
    }

    .agency-banner p {
      font-size: 1.05rem;
      color: #c7d2fe;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .agency-stats {
      display: flex;
      gap: 24px;
      margin-bottom: 24px;
    }

    .agency-stat-num {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--accent-yellow);
    }

    .agency-stat-label {
      font-size: 0.8rem;
      color: #e0e7ff;
    }

    /* Contact & Form Section */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
    }

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

    .contact-list li {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    .contact-list strong {
      color: var(--text-main);
      display: block;
      margin-bottom: 2px;
    }

    .qr-box-wrap {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 16px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .qr-image-holder {
      width: 100px;
      height: 100px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      overflow: hidden;
      flex-shrink: 0;
      border: 1px solid #cbd5e1;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-image-holder img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .form-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .form-card h3 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .form-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
      margin-bottom: 20px;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* Footer */
    footer.site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 4px solid var(--primary);
    }

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

    .footer-col h3 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

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

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

    .footer-col ul li a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s ease;
    }

    .footer-col ul li a:hover {
      color: #ffffff;
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friend-links-box a {
      color: #94a3b8;
      font-size: 0.85rem;
      text-decoration: none;
      background: #1e293b;
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }

    .friend-links-box a:hover {
      background: var(--primary);
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Floating Contact Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: var(--text-main);
      transition: all 0.2s ease;
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.08);
    }

    .float-btn svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    .float-qr-popover {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      width: 160px;
      text-align: center;
    }

    .float-qr-popover img {
      width: 100%;
      height: auto;
      display: block;
      margin-bottom: 6px;
    }

    .float-qr-popover p {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* Responsive Media Queries */
    @media (max-width: 1024px) {
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-grid { grid-template-columns: 1fr; }
      .process-steps-grid { grid-template-columns: repeat(2, 1fr); }
      .materials-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .articles-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 2px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 12px 16px;
      }
      .nav-toggle-btn {
        display: block;
      }
      .intro-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .process-steps-grid { grid-template-columns: 1fr; }
      .showcase-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .agency-banner { grid-template-columns: 1fr; padding: 28px; }
      .footer-grid { grid-template-columns: 1fr; }
      h1.hero-main-title { font-size: 2rem; }
      .section-title { font-size: 1.7rem; }
    }