body { background-color: #f8fafc; color: #334155; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; margin: 0; }
.main-wrapper { max-width: 1200px; margin: 0 auto; padding: 20px; }
.card-box { background: #fff; border-radius: 8px; border: 1px solid #e2e8f0; margin-bottom: 25px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.card-head { padding: 15px 20px; background: #fdfdfd; border-bottom: 1px solid #f1f5f9; font-weight: 600; color: #1e293b; display: flex; align-items: center; }
.card-head i { color: #3b82f6; margin-right: 10px; }
.list-table { width: 100%; border-collapse: collapse; }
.list-table th { text-align: left; padding: 12px 15px; color: #64748b; font-weight: 500; font-size: 13px; border-bottom: 1px solid #f1f5f9; }
.list-table td { padding: 16px 15px; border-bottom: 1px solid #f1f5f9; font-size: 14px; }
.list-table tr:hover { background-color: #f8fafc; }
.text-price { color: #ef4444; font-weight: 700; font-size: 16px; }
.btn-buy { background: #3b82f6; color: #fff; padding: 6px 16px; border-radius: 4px; text-decoration: none; font-size: 13px; transition: 0.2s; display: inline-block; }
.btn-buy:hover { background: #2563eb; }
.site-nav { height: 64px; background: #fff; border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-index: 1000; }
.nav-inner { max-width: 1200px; margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
.nav-menu { display: flex; list-style: none; margin: 0; padding: 0; }
.nav-menu li a { padding: 0 20px; line-height: 64px; color: #475569; text-decoration: none; font-size: 15px; }
.nav-menu li a:hover { color: #3b82f6; }
.info-bar { background: #fff; border-left: 4px solid #3b82f6; padding: 15px 20px; border-radius: 4px; margin-bottom: 25px; color: #475569; font-size: 14px; box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.product-grid { display: grid; grid-template-columns: 400px 1fr; gap: 40px; padding: 30px; }
.product-image { border: 1px solid #f1f5f9; border-radius: 8px; overflow: hidden; }
.product-image img { width: 100%; display: block; }
.price-section { background: #fef2f2; padding: 20px; border-radius: 8px; margin: 20px 0; }
.input-control { width: 100%; height: 44px; border: 1px solid #cbd5e1; border-radius: 6px; padding: 0 15px; box-sizing: border-box; outline: none; margin-bottom: 15px; }
.input-control:focus { border-color: #3b82f6; }
.footer-area { padding: 50px 0; background: #fff; border-top: 1px solid #e2e8f0; text-align: center; color: #94a3b8; font-size: 13px; margin-top: 60px; }
@media (max-width: 800px) { .product-grid { grid-template-columns: 1fr; } .layui-hide-xs { display: none !important; } }