:root { --primary: #2c3e50; --secondary: #f8f9fa; --accent: #27ae60; --text: #333; --light-text: #6c757d; } html { scroll-behavior: smooth; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f5f7fa; color: var(--text); } .navbar { background-color: var(--primary); box-shadow: 0 2px 10px rgba(0,0,0,0.1); } .navbar-brand { font-weight: 700; font-size: 1.5rem; }  .product-card { background: white; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); overflow: hidden; transition: transform 0.3s ease; } .product-card:hover { transform: translateY(-5px); } .product-header { background: linear-gradient(to right, #3498db, #2c3e50); color: white; padding: 20px; } .product-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 5px; } .author-link { color: #bdc3c7; text-decoration: none; transition: color 0.3s; } .author-link:hover { color: white; text-decoration: underline; } .price-tag { font-size: 2.2rem; font-weight: 700; color: var(--accent); margin: 15px 0; } .sale-badge { background-color: #e74c3c; padding: 3px 8px; border-radius: 3px; font-size: 0.8rem; font-weight: 600; } .feature-list { list-style-type: none; padding-left: 0; } .feature-list li { padding: 8px 0; border-bottom: 1px solid #eee; } .feature-list li:before { content: "✓"; color: var(--accent); font-weight: bold; margin-right: 10px; } .license-card { border: 1px solid #ddd; border-radius: 5px; padding: 20px; margin-bottom: 20px; } .license-title { font-weight: 600; margin-bottom: 15px; font-size: 1.2rem; } .support-option { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid #eee; } .btn-buy { background-color: var(--accent); color: white; font-weight: 600; padding: 12px 30px; border-radius: 4px; transition: all 0.3s; } .btn-buy:hover { background-color: #219653; transform: scale(1.03); } .tech-badge { background-color: #e1f0ff; color: #2980b9; padding: 5px 12px; border-radius: 20px; font-size: 0.85rem; margin: 5px; } .detail-card { background-color: white; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); padding: 20px; margin-bottom: 20px; } .detail-title { font-size: 1.3rem; font-weight: 600; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #f0f0f0; } .tag { background-color: #eef7ff; padding: 5px 10px; border-radius: 4px; font-size: 0.85rem; margin: 0 5px 8px 0; display: inline-block; } .tag a {color: #3498db; text-decoration:none;} .author-card { display: flex; align-items: center; padding: 15px; background-color: white; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); } .author-avatar { width: 60px; height: 60px; border-radius: 50%; background-color: #3498db; display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; font-size: 1.5rem; margin-right: 15px; } .screenshot { border-radius: 8px; overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin-bottom: 20px; } .screenshot img { width: 100%; height: auto; transition: transform 0.3s; } .screenshot:hover img { transform: scale(1.03); } .footer { background-color: var(--primary); color: #ecf0f1; padding: 30px 0; margin-top: 40px; } .update-badge { background-color: #d5f5e3; color: #27ae60; padding: 3px 8px; border-radius: 3px; font-size: 0.8rem; font-weight: 600; } .demo-container * { box-sizing: border-box; } .demo-container { font-family: Arial, sans-serif; background-color: #f4f4f4; text-align: center; margin-top: 10px; } .demo-container .header { background-color: #222; padding: 10px; color: white; font-size: 12px; display: flex; justify-content: space-between; align-items: center; } .demo-container .timer { font-weight: bold; color: #ffcc00; } .demo-container .buy-button a { background-color: #28a745; color: white; padding: 7px 7px; text-decoration: none; font-size: 12px; border-radius: 5px; } .demo-container .iframe-container { width: 100%; height: 500px; border: none; display: block; } .demo-container .demo-message { display: none; font-size: 22px; color: red; margin-top: 20px; }