:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --primary-light: #E6F4EA;
            --dark: #111827;
            --gray-dark: #374151;
            --gray-light: #F3F4F6;
            --white: #FFFFFF;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--white);
            color: var(--gray-dark);
            line-height: 1.6;
        }

        /* Container Layout */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--gray-light);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--transition);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--primary);
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--gray-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            display: inline-block;
            background-color: var(--primary);
            color: var(--white) !important;
            padding: 8px 20px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 10px rgba(16, 185, 129, 0.2);
        }

        .nav-btn:hover {
            background-color: var(--primary-hover) !important;
            transform: translateY(-2px);
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: var(--transition);
        }

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

        .section-bg-light {
            background-color: var(--gray-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--dark);
            margin-bottom: 15px;
            font-weight: 750;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: #6B7280;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Hero Section (No Images allowed) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, #E6F4EA 0%, #FFFFFF 100%);
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 20px;
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 900;
        }

        .hero h1 span {
            color: var(--primary);
            background: linear-gradient(120deg, var(--primary) 0%, #059669 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--gray-dark);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--primary);
            color: var(--white);
            padding: 15px 35px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.2);
            transition: var(--transition);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(16, 185, 129, 0.3);
        }

        .btn-secondary {
            display: inline-block;
            background-color: var(--white);
            color: var(--dark);
            padding: 15px 35px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            border: 2px solid var(--gray-light);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* Data Cards (Hero Bottom) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background: var(--white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border-bottom: 4px solid var(--primary);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #6B7280;
        }

        /* Service Cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            padding: 35px;
            border-radius: 16px;
            border: 1px solid var(--gray-light);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(16, 185, 129, 0.1);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .service-card p {
            color: #6B7280;
            font-size: 0.95rem;
        }

        /* Flow Process */
        .process-flow {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 0 0 8px var(--primary-light);
        }

        .process-step h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .process-step p {
            font-size: 0.9rem;
            color: #6B7280;
            padding: 0 10px;
        }

        /* Comparison Table */
        .table-responsive {
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            background: var(--white);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--gray-light);
        }

        th {
            background-color: var(--dark);
            color: var(--white);
            font-weight: 600;
        }

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

        .highlight-col {
            background-color: rgba(16, 185, 129, 0.05);
            font-weight: 600;
        }

        /* FAQ Accordions */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background-color: var(--white);
            border: 1px solid var(--gray-light);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: var(--gray-light);
        }

        .faq-answer p {
            padding: 20px;
            color: var(--gray-dark);
            font-size: 0.95rem;
        }

        /* Review Cards */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            border: 1px solid var(--gray-light);
            position: relative;
        }

        .review-rating {
            color: #F59E0B;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .review-text {
            font-style: italic;
            color: var(--gray-dark);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .review-info h5 {
            color: var(--dark);
            font-size: 0.95rem;
        }

        .review-info span {
            color: #9CA3AF;
            font-size: 0.8rem;
        }

        /* Form Area */
        .form-section {
            background: linear-gradient(135deg, #111827 0%, #1F2937 100%);
            color: var(--white);
        }

        .form-section .section-header h2 {
            color: var(--white);
        }

        .form-container {
            max-width: 700px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.05);
            padding: 40px;
            border-radius: 16px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 0.9rem;
            color: #D1D5DB;
        }

        .form-group input, .form-group select, .form-group textarea {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 12px 16px;
            border-radius: 8px;
            color: var(--white);
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.12);
        }

        .form-group select option {
            background: #1F2937;
            color: var(--white);
        }

        /* Case & Gallery Section */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-item {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

        .case-img-container {
            position: relative;
            overflow: hidden;
        }

        .case-img-container img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .case-item:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 25px;
        }

        .case-tag {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
            text-decoration: none;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.1);
        }

        .float-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--white);
            border: 1px solid var(--gray-light);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            width: 220px;
            text-align: center;
        }

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

        .float-popover p {
            font-size: 0.85rem;
            color: var(--dark);
            font-weight: 600;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #9CA3AF;
            padding: 60px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: #9CA3AF;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
        }

        .friend-links a {
            color: #9CA3AF;
            text-decoration: none;
            margin-right: 15px;
            transition: var(--transition);
        }

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

        /* Responsive Layouts */
        @media (max-width: 1024px) {
            .grid-3, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--gray-light);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            
            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .grid-3, .reviews-grid, .case-gallery, .footer-grid, .hero-stats {
                grid-template-columns: 1fr;
            }

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

            .form-group.full-width {
                grid-column: span 1;
            }

            .process-flow {
                flex-direction: column;
                align-items: center;
            }

            .process-step::after {
                display: none;
            }
        }