:root {
            --primary: #2c3e50;
            --accent: #3498db;
            --bg-light: #f8f9fa;
            --text: #333;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: var(--text);
            margin: 0;
            padding: 0;
            background-color: #fff;
        }
        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 20px;
        }
        header {
            text-align: center;
            padding: 50px 0;
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9)), url('https://upbg103.myueeshop.com/u_file/2601/19/photo/co2fractionallaserfacialtreatment1200.webp') center/cover;
            color: white;
        }
        h1 { font-size: 2.5em; margin-bottom: 10px; }
        h2 { border-left: 5px solid var(--accent); padding-left: 15px; margin-top: 40px; color: var(--primary); }
        .intro { font-size: 1.2em; color: #666; font-style: italic; margin-bottom: 30px; }
        
        .result-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 30px 0;
        }
        .result-card {
            background: var(--bg-light);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        .result-card img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        .image-caption { font-size: 0.9em; font-weight: bold; color: var(--primary); }

        .feature-box {
            background-color: #eef7ff;
            padding: 25px;
            border-radius: 10px;
            border: 1px solid var(--accent);
            margin: 20px 0;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
        }
        table th, table td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
        }
        table th { background-color: var(--primary); color: white; }

        .faq-section { margin-top: 50px; }
        .faq-item {
            margin-bottom: 15px;
            border-bottom: 1px solid #eee;
            padding-bottom: 10px;
        }
        .faq-question { font-weight: bold; color: var(--accent); cursor: pointer; }
        .faq-answer { margin-top: 5px; color: #555; }

        .cta-section {
            text-align: center;
            padding: 40px;
            background: var(--bg-light);
            border-radius: 15px;
            margin-top: 50px;
        }
        .btn {
            display: inline-block;
            padding: 15px 30px;
            background-color: var(--accent);
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            transition: 0.3s;
        }
        .btn:hover { background-color: #2980b9; }

        @media (max-width: 600px) {
            .result-gallery { grid-template-columns: 1fr; }
        }