:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --accent: #ff3366;
      --accent-gradient: linear-gradient(135deg, #ff3366 0%, #ff6b4a 50%, #ffb800 100%);
      --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --bg-light: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 20px -2px rgba(0,0,0,0.08);
      --shadow-lg: 0 12px 30px -4px rgba(79, 70, 229, 0.12);
      --radius: 12px;
      --radius-lg: 20px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Header */
    .header {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

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

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

    .logo-area img {
      max-height: 40px;
      width: auto;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 800;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.05);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 9999px;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: var(--accent-gradient);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(255, 51, 102, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 51, 102, 0.45);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border-color: var(--border-color);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(79, 70, 229, 0.04);
    }

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

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      transition: 0.3s;
    }

    /* Hero Section (No Images as required) */
    .hero-section {
      position: relative;
      padding: 80px 0 60px;
      background: radial-gradient(circle at 10% 20%, rgba(255, 51, 102, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(124, 58, 237, 0.08) 0%, transparent 40%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 9999px;
      background: rgba(255, 51, 102, 0.1);
      color: #ff1e56;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 24px;
      border: 1px solid rgba(255, 51, 102, 0.2);
    }

    .hero-title {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
    }

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

    .btn-hero-main {
      padding: 14px 36px;
      font-size: 17px;
      font-weight: 700;
      border-radius: 9999px;
      background: var(--accent-gradient);
      color: #ffffff;
      box-shadow: 0 8px 24px rgba(255, 51, 102, 0.35);
    }

    .btn-hero-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 51, 102, 0.45);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-grid: repeat(4, 1fr);
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px 20px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .stat-num {
      font-size: 32px;
      font-weight: 900;
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-sub);
      font-weight: 600;
    }

    /* Common Section Styles */
    .section-wrap {
      padding: 80px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
    }

    /* Model Badges Wall */
    .model-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-badge {
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 8px;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }

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

    /* Feature Grid (Cards) */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(255, 51, 102, 0.3);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(255, 51, 102, 0.1) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
      color: var(--primary);
    }

    .feature-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .feature-tag-item {
      font-size: 12px;
      background: #f1f5f9;
      color: var(--text-sub);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* Showcase Section with Images */
    .showcase-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .showcase-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .showcase-img-wrap {
      width: 100%;
      overflow: hidden;
      background: #e2e8f0;
    }

    .showcase-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

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

    .showcase-body {
      padding: 24px;
    }

    .showcase-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .showcase-desc {
      font-size: 14px;
      color: var(--text-muted);
    }

    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-card {
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .banner-card img {
      width: 100%;
      height: auto;
      display: block;
    }

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

    .flow-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 20px;
      position: relative;
      text-align: center;
    }

    .flow-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--brand-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 16px;
      font-size: 16px;
    }

    .flow-name {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .flow-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Comparison Section */
    .compare-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(255, 51, 102, 0.05) 100%);
      border: 1px solid rgba(255, 51, 102, 0.2);
      border-radius: var(--radius);
      padding: 20px 30px;
      margin-bottom: 30px;
    }

    .score-info {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .score-val {
      font-size: 40px;
      font-weight: 900;
      color: #ff1e56;
      line-height: 1;
    }

    .score-text h4 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
    }

    .score-text p {
      font-size: 14px;
      color: var(--text-sub);
    }

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 15px;
    }

    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }

    .highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 700;
      color: var(--primary);
    }

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

    .test-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .test-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .test-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--brand-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }

    .test-user h4 {
      font-size: 16px;
      font-weight: 700;
    }

    .test-user span {
      font-size: 13px;
      color: var(--text-sub);
    }

    .test-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* FAQ Section */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      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(--primary);
    }

    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--text-sub);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      background: #fafbfc;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 14px 24px 20px;
      border-top: 1px solid var(--border-color);
    }

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

    /* Articles Section */
    .article-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      margin-bottom: 30px;
    }

    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .article-link-btn {
      display: inline-block;
      padding: 8px 16px;
      background: #f1f5f9;
      border-radius: 6px;
      font-size: 14px;
      color: var(--text-main);
      font-weight: 600;
      transition: all 0.2s ease;
    }

    .article-link-btn:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* Contact & Form */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

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

    .contact-meta-item {
      margin-bottom: 20px;
    }

    .contact-meta-item strong {
      display: block;
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .contact-meta-item span, .contact-meta-item a {
      font-size: 14px;
      color: var(--text-muted);
    }

    .qr-wrap {
      margin-top: 20px;
      display: inline-block;
      text-align: center;
      padding: 12px;
      background: #f8fafc;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
    }

    .qr-wrap img {
      width: 130px;
      height: 130px;
      display: block;
      margin-bottom: 6px;
    }

    .qr-wrap span {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-sub);
    }

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s ease;
      background: #fdfdfd;
      font-family: inherit;
    }

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

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

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

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h5 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 14px;
    }

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

    .friend-links-box {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-box span {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-right: 12px;
    }

    .friend-links-box a {
      font-size: 13px;
      color: var(--text-sub);
      margin-right: 14px;
      display: inline-block;
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: var(--text-sub);
    }

    /* Floating Contact */
    .floating-contact {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 20px;
      transition: all 0.2s ease;
      color: var(--text-main);
    }

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

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-title { font-size: 36px; }
      .feature-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-grid { grid-template-columns: repeat(2, 1fr); }
      .showcase-grid { grid-template-columns: 1fr; }
      .banner-gallery { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .menu-toggle { display: flex; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active { display: flex; }
      .hero-title { font-size: 28px; }
      .hero-desc { font-size: 15px; }
      .feature-grid { grid-template-columns: 1fr; }
      .hero-stats-grid { grid-template-columns: 1fr; }
      .flow-grid { grid-template-columns: 1fr; }
      .testimonial-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .compare-container { padding: 20px; overflow-x: auto; }
      .score-banner { flex-direction: column; gap: 16px; text-align: center; }
      .nav-action .btn-outline { display: none; }
    }