:root{--bg: #f5f7fa;--card: #fff;--text: #303133;--text2: #909399;--border: #e4e7ed;--primary: #1677ff;--danger: #e4393c;--success: #52c41a;--warning: #fa8c16;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.topbar{background:#001529;color:#fff;height:48px;display:flex;align-items:center;padding:0 20px;position:sticky;top:0;z-index:100}.topbar-inner{max-width:1200px;margin:0 auto;width:100%;display:flex;align-items:center;gap:24px}.topbar-brand{font-size:16px;font-weight:600;color:#fff;text-decoration:none;margin-right:8px}.topbar-nav{display:flex;gap:4px;flex:1}.topbar-nav a{color:#ffffffb3;padding:4px 12px;border-radius:4px;font-size:14px;text-decoration:none;transition:all .2s}.topbar-nav a:hover{color:#fff;background:#1677ff33}.topbar-nav a.active{color:#fff;background:#1677ff}.topbar-nav .right{margin-left:auto}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:var(--card);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:0 1px 3px #0000000f}.btn{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;border:1px solid var(--border);cursor:pointer;background:#fff;color:var(--text);transition:all .2s}.btn:hover{border-color:var(--primary);color:var(--primary)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:#4096ff}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-success{background:var(--success);color:#fff;border-color:var(--success)}.btn-sm{padding:4px 10px;font-size:12px}.btn-block{width:100%;justify-content:center}input,select,textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;outline:none;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--primary)}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:500}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.product-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 1px 3px #0000000f;cursor:pointer;transition:transform .2s,box-shadow .2s}.product-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.product-card img{width:100%;height:200px;object-fit:cover}.product-card .info{padding:12px}.product-card .name{font-size:14px;font-weight:500;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product-card .price{color:var(--danger);font-size:18px;font-weight:600}.product-card .price small{font-size:12px}.product-card .stock{color:var(--text2);font-size:12px;margin-left:8px}.cart-item{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}.cart-item img{width:80px;height:80px;object-fit:cover;border-radius:6px}.cart-item .info{flex:1}.cart-item .name{font-weight:500;margin-bottom:4px}.cart-item .price{color:var(--danger);font-weight:600}.cart-item .qty{display:flex;align-items:center;gap:8px}.cart-item .qty button{width:28px;height:28px;border:1px solid var(--border);border-radius:4px;background:#fff;cursor:pointer}.cart-item .qty span{min-width:30px;text-align:center}.order-item{padding:16px;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px}.order-item .header{display:flex;justify-content:space-between;margin-bottom:8px;font-size:13px;color:var(--text2)}.order-item .body{display:flex;gap:12px;align-items:center}.order-item .amount{color:var(--danger);font-size:18px;font-weight:600}.status-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}.status-pending{background:#fff7e6;color:#d46b08}.status-paid{background:#f6ffed;color:#389e0d}.status-closed{background:#f5f5f5;color:#999}.status-refunded{background:#fff1f0;color:#cf1322}.footer{background:#001529;color:#ffffff80;padding:40px 20px 20px;margin-top:40px}.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer h4{color:#fff;margin-bottom:12px;font-size:14px}.footer ul{list-style:none}.footer li{font-size:13px;margin-bottom:6px}.footer-copy{text-align:center;margin-top:24px;padding-top:16px;border-top:1px solid #ffffff1a;font-size:12px}.empty{text-align:center;padding:60px 20px;color:var(--text2)}.empty p{margin-bottom:16px}.pagination{display:flex;justify-content:center;gap:8px;margin-top:20px}.pagination button{padding:6px 12px;border:1px solid var(--border);border-radius:4px;background:#fff;cursor:pointer}.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.pagination button:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 768px){.product-grid,.footer-grid{grid-template-columns:repeat(2,1fr)}.topbar-nav{display:none}}