/* CSS Base & Reset */
    :root {
      --primary-yellow: #facc15;
      --accent-yellow: #eab308;
      --dark-gold: #ca8a04;
      --light-yellow-bg: #fffdf0;
      --card-yellow-bg: #fefce8;
      --text-dark: #0f172a;
      --text-gray: #475569;
      --text-muted: #64748b;
      --border-yellow: #fef08a;
      --border-dark: #cbd5e1;
      --white: #ffffff;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 15px -3px rgba(234, 179, 8, 0.15), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 20px 25px -5px rgba(202, 138, 4, 0.2), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--light-yellow-bg);
      color: var(--text-dark);
      line-height: 1.6;
    }

    body {
      background-color: var(--light-yellow-bg);
      overflow-x: hidden;
    }

    /* Standard Outer Container */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-dark);
      letter-spacing: -0.5px;
    }

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

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-gray);
      text-decoration: none;
      border-radius: 6px;
      transition: var(--transition);
    }

    .nav-links li a:hover {
      color: var(--text-dark);
      background-color: var(--primary-yellow);
    }

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

    .btn-nav-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
      background: var(--primary-yellow);
      border: 2px solid var(--accent-yellow);
      border-radius: 8px;
      text-decoration: none;
      box-shadow: 0 4px 10px rgba(250, 204, 21, 0.4);
      transition: var(--transition);
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      background: var(--accent-yellow);
      box-shadow: 0 6px 15px rgba(234, 179, 8, 0.5);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
    }

    /* Section Component Base */
    .section-padding {
      padding: 80px 0;
      border-bottom: 1px solid rgba(234, 179, 8, 0.15);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-dark);
      background: var(--primary-yellow);
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-gray);
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 20%, #fef08a 0%, #fffdf0 70%);
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: var(--white);
      border: 2px solid var(--primary-yellow);
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-h1 {
      font-size: 2.6rem;
      font-weight: 900;
      color: var(--text-dark);
      margin-bottom: 20px;
      line-height: 1.25;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-gray);
      max-width: 850px;
      margin: 0 auto 36px auto;
    }

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

    .btn-hero-primary {
      padding: 16px 36px;
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-dark);
      background: linear-gradient(135deg, #facc15, #eab308);
      border: none;
      border-radius: 10px;
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(234, 179, 8, 0.4);
      transition: var(--transition);
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 14px 30px rgba(202, 138, 4, 0.5);
    }

    .btn-hero-secondary {
      padding: 16px 32px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      background: var(--white);
      border: 2px solid var(--text-dark);
      border-radius: 10px;
      text-decoration: none;
      transition: var(--transition);
    }

    .btn-hero-secondary:hover {
      background: var(--primary-yellow);
      transform: translateY(-2px);
    }

    .hero-tags-wall {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .tag-pill {
      padding: 6px 14px;
      background: var(--white);
      border: 1px solid var(--border-yellow);
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-gray);
      box-shadow: var(--shadow-sm);
    }

    /* Stats Section */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: var(--white);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-5px);
      border-color: var(--accent-yellow);
    }

    .stat-num {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--dark-gold);
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
    }

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

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    /* Feature / Service Card */
    .card-item {
      background: var(--white);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .card-item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent-yellow);
    }

    .card-icon {
      width: 50px;
      height: 50px;
      background: var(--primary-yellow);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: bold;
      color: var(--text-dark);
      margin-bottom: 18px;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 10px;
    }

    .card-desc {
      font-size: 0.95rem;
      color: var(--text-gray);
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .card-badge {
      display: inline-block;
      align-self: flex-start;
      padding: 4px 10px;
      font-size: 0.75rem;
      font-weight: 700;
      background: var(--card-yellow-bg);
      color: var(--dark-gold);
      border: 1px solid var(--border-yellow);
      border-radius: 4px;
    }

    /* Media Wrapper for Images in Body */
    .media-box {
      margin-top: 20px;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid var(--border-yellow);
    }

    .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

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

    .step-card {
      background: var(--white);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }

    .step-number {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary-yellow);
      -webkit-text-stroke: 1px var(--dark-gold);
      margin-bottom: 8px;
    }

    /* Comparison Table */
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: var(--white);
      border: 2px solid var(--primary-yellow);
      border-radius: var(--radius);
      box-shadow: var(--shadow-md);
    }

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

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-yellow);
      font-size: 0.95rem;
    }

    .custom-table th {
      background: var(--primary-yellow);
      color: var(--text-dark);
      font-weight: 800;
      font-size: 1rem;
    }

    .custom-table tr:nth-child(even) {
      background-color: var(--card-yellow-bg);
    }

    .custom-table td.highlight {
      font-weight: 700;
      color: var(--dark-gold);
      background: rgba(250, 204, 21, 0.15);
    }

    .rating-banner {
      background: linear-gradient(135deg, #facc15, #eab308);
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      box-shadow: var(--shadow-md);
    }

    .rating-score {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-dark);
    }

    .rating-stars {
      font-size: 1.5rem;
      color: #7c2d12;
    }

    /* Testimonials Card */
    .testimonial-card {
      background: var(--white);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      background: var(--primary-yellow);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--text-dark);
    }

    .user-role {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Article List */
    .article-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .article-item {
      background: var(--white);
      border: 1px solid var(--border-yellow);
      border-radius: 8px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      text-decoration: none;
      color: var(--text-dark);
      transition: var(--transition);
    }

    .article-item:hover {
      background: var(--card-yellow-bg);
      border-color: var(--accent-yellow);
      transform: translateX(4px);
    }

    .article-title {
      font-weight: 700;
      font-size: 1rem;
    }

    .article-link-btn {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--dark-gold);
    }

    /* FAQ Accordion */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--white);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: var(--card-yellow-bg);
      padding: 0 24px;
      font-size: 0.95rem;
      color: var(--text-gray);
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 16px 24px 24px 24px;
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    /* Contact Form Section */
    .form-wrapper {
      background: var(--white);
      border: 3px solid var(--primary-yellow);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-lg);
    }

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

    .form-label {
      display: block;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      font-size: 1rem;
      background: var(--white);
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--accent-yellow);
      box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.3);
    }

    .btn-submit {
      width: 100%;
      padding: 16px;
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-dark);
      background: linear-gradient(135deg, #facc15, #eab308);
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 6px 15px rgba(234, 179, 8, 0.4);
      transition: var(--transition);
    }

    .btn-submit:hover {
      background: linear-gradient(135deg, #eab308, #ca8a04);
      transform: translateY(-2px);
    }

    /* Friend Links & SEO Links */
    .friend-links-box {
      background: var(--white);
      border: 1px solid var(--border-yellow);
      border-radius: 8px;
      padding: 20px;
      margin-top: 30px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friend-links-box a {
      color: var(--text-gray);
      text-decoration: none;
      font-size: 0.9rem;
      font-weight: 600;
      transition: var(--transition);
    }

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

    /* Footer */
    .site-footer {
      background: #1e293b;
      color: #f8fafc;
      padding: 60px 0 30px 0;
      border-top: 4px solid var(--primary-yellow);
    }

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

    .footer-col h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-yellow);
      margin-bottom: 18px;
    }

    .footer-col p, .footer-col li {
      font-size: 0.9rem;
      color: #cbd5e1;
      margin-bottom: 10px;
      list-style: none;
    }

    .footer-col a {
      color: #cbd5e1;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .footer-qr {
      width: 110px;
      height: 110px;
      background: white;
      padding: 6px;
      border-radius: 8px;
      margin-top: 10px;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #94a3b8;
    }

    /* Floating Customer Service Widget */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      background: var(--white);
      border: 3px solid var(--primary-yellow);
      border-radius: 12px;
      padding: 12px;
      box-shadow: var(--shadow-lg);
      text-align: center;
      width: 140px;
    }

    .float-kefu img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 6px;
      margin-bottom: 6px;
    }

    .float-kefu-title {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--text-dark);
    }

    /* Responsive Breakdown */
    @media (max-width: 992px) {
      .stats-grid, .grid-4, .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 2px solid var(--primary-yellow);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 1.8rem;
      }
      .stats-grid, .grid-2, .grid-4, .process-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .float-kefu {
        display: none;
      }
    }