*{margin:0;padding:0;box-sizing:border-box}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.5;font-weight:400;color:#333;background-color:#f5f5f5;font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent}body{min-width:320px;max-width:750px;margin:0 auto;min-height:100vh}a{color:#ff6b35;text-decoration:none}img{max-width:100%;display:block}.header{background:linear-gradient(135deg,#ff6b35,#ff8c42);color:#fff;padding:12px 16px;position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between}.header h1{font-size:18px;font-weight:600}.header nav a{color:#fff;margin-left:16px;font-size:13px;opacity:.9}.header nav a:hover{opacity:1}.footer{background:#fff;padding:20px 16px;text-align:center;border-top:1px solid #eee;margin-top:20px}.footer-links{display:flex;justify-content:center;gap:20px;margin-bottom:12px;flex-wrap:wrap}.footer-links a{color:#666;font-size:12px}.footer-icp{color:#999;font-size:11px;line-height:1.8}.banner{background:linear-gradient(135deg,#ff6b35,#ff8c42);color:#fff;padding:30px 20px;text-align:center}.banner h2{font-size:22px;margin-bottom:8px}.banner p{font-size:14px;opacity:.9}.search-bar{padding:12px 16px;background:#fff}.search-bar input{width:100%;padding:10px 16px;border:1px solid #eee;border-radius:20px;background:#f5f5f5;font-size:14px;outline:none}.categories{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:16px;background:#fff;margin-top:10px}.category-item{display:flex;flex-direction:column;align-items:center;gap:6px}.category-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px}.category-item span{font-size:12px;color:#666}.section-title{padding:16px 16px 8px;font-size:16px;font-weight:600;color:#333}.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:8px 16px}.product-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 4px #0000000f}.product-img{width:100%;height:160px;object-fit:cover;background:#f0f0f0;display:flex;align-items:center;justify-content:center;color:#ccc;font-size:40px}.product-info{padding:10px}.product-info h3{font-size:13px;font-weight:500;color:#333;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-price{color:#ff6b35;font-size:16px;font-weight:600}.product-price .original{color:#999;font-size:12px;text-decoration:line-through;margin-left:6px;font-weight:400}.product-meta{display:flex;justify-content:space-between;align-items:center;margin-top:6px}.product-sales{font-size:11px;color:#999}.product-tag{background:#fff3ed;color:#ff6b35;font-size:10px;padding:2px 6px;border-radius:3px}.page-content{background:#fff;margin:10px 0;padding:20px 16px}.page-content h2{font-size:18px;color:#333;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #ff6b35;display:inline-block}.page-content h3{font-size:15px;color:#333;margin:20px 0 10px}.page-content p{font-size:14px;color:#666;line-height:1.8;margin-bottom:12px}.page-content ul{padding-left:20px;margin-bottom:12px}.page-content li{font-size:14px;color:#666;line-height:2}.about-info{background:#fff3ed;border-radius:8px;padding:16px;margin-bottom:16px}.about-info dt{font-size:13px;color:#999;margin-bottom:2px}.about-info dd{font-size:14px;color:#333;margin-bottom:12px}.about-info dd:last-child{margin-bottom:0}