:root{--brand: #0a6cff;--brand-deep: #0050b3;--ink: #1a2233;--muted: #8a94a6;--line: #eaeef4;--bg: #f5f7fb;--card: #ffffff;--ring: rgba(10, 108, 255, .14);--ok: #16a34a;--danger: #e5484d;--shadow: 0 8px 30px rgba(20, 40, 80, .08);--radius: 14px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;z-index:20;background:#ffffffd9;-webkit-backdrop-filter:saturate(180%) blur(10px);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800}.site-nav{display:flex;gap:18px;align-items:center}.nav-link{color:var(--muted);font-size:14px;font-weight:500}.nav-link:hover{color:var(--brand)}.site-main{padding:28px 20px 60px;min-height:60vh}.site-footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px;text-align:center}.icp-line{margin-top:6px}.icp-line a{color:var(--muted);text-decoration:none}.icp-line a:hover{color:var(--brand);text-decoration:underline}.hero{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);color:#fff;border-radius:var(--radius);padding:34px 28px;margin-bottom:26px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;background:radial-gradient(circle,rgba(255,255,255,.25),transparent 70%)}.hero h1{font-size:26px;margin-bottom:6px}.hero p{opacity:.9;font-size:14px}.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:18px}.search{flex:1;min-width:220px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fff;outline:none}.search:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--ring)}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink);cursor:pointer;transition:.15s}.chip:hover{border-color:var(--brand);color:var(--brand)}.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s;display:flex;flex-direction:column}.card:hover{transform:translateY(-3px);box-shadow:0 14px 40px #14285024}.thumb{aspect-ratio:4 / 3;background:#eef2f8;position:relative;display:grid;place-items:center}.thumb img{width:100%;height:100%;object-fit:cover}.thumb .ph{color:#b7c1d1;font-size:13px}.badge{position:absolute;top:10px;left:10px;padding:3px 9px;border-radius:999px;font-size:12px;background:#0a6cffe6;color:#fff}.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}.card-cat{font-size:12px;color:var(--muted)}.card-title{font-size:15px;font-weight:600;line-height:1.4}.card-model{font-size:12px;color:var(--muted)}.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px}.price{color:var(--brand);font-weight:700;font-size:17px}.stock{font-size:12px;color:var(--muted)}.empty{text-align:center;color:var(--muted);padding:60px 0}.loading{text-align:center;color:var(--muted);padding:50px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;background:#eef2f8;color:var(--ink)}.btn:hover{filter:brightness(.97)}.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff}.btn-outline{background:#fff;border:1px solid var(--line)}.btn-danger{background:#fff;color:var(--danger);border:1px solid #f3d1d3}.btn-sm{padding:7px 12px;font-size:13px;border-radius:8px}.btn:disabled{opacity:.6;cursor:not-allowed}.detail{display:grid;grid-template-columns:1fr 1fr;gap:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.detail .thumb{border-radius:12px;aspect-ratio:1 / 1}.detail h1{font-size:24px;margin-bottom:8px}.detail .meta{color:var(--muted);font-size:14px;margin-bottom:16px}.spec{display:grid;grid-template-columns:92px 1fr;gap:8px 14px;font-size:14px;margin:16px 0}.spec dt{color:var(--muted)}.spec .price{font-size:26px}.desc{margin-top:14px;color:#444;font-size:14px;line-height:1.7;white-space:pre-wrap}.back{color:var(--muted);font-size:14px;margin-bottom:16px;display:inline-block}.back:hover{color:var(--brand)}.admin-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px;flex-wrap:wrap}.admin-top h2{font-size:20px}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}th{background:#f8fafc;color:var(--muted);font-weight:600;font-size:13px}tr:last-child td{border-bottom:none}.td-thumb{width:56px;height:44px;border-radius:8px;object-fit:cover;background:#eef2f8}.td-name{font-weight:600}.row-actions{display:flex;gap:8px}.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px}.tag-on{background:#e7f6ec;color:var(--ok)}.tag-off{background:#f1f3f6;color:var(--muted)}.field{margin-bottom:14px}.field label{display:block;font-size:13px;color:var(--ink);margin-bottom:6px;font-weight:500}.field label .req{color:var(--danger);margin-left:2px}.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;outline:none;background:#fff}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--ring)}.field textarea{resize:vertical;min-height:84px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}.switch{display:inline-flex;align-items:center;gap:8px;font-size:14px}.img-drop{border:2px dashed var(--line);border-radius:10px;padding:14px;display:flex;align-items:center;gap:14px}.img-drop img{width:72px;height:72px;object-fit:cover;border-radius:8px}.img-drop .hint{color:var(--muted);font-size:13px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#10182880;display:grid;place-items:center;padding:20px;z-index:50}.modal{background:#fff;border-radius:16px;width:100%;max-width:560px;max-height:90vh;overflow:auto}.modal-head{padding:18px 22px;border-bottom:1px solid var(--line);font-weight:700;font-size:17px;position:sticky;top:0;background:#fff}.modal-body{padding:20px 22px}.modal-foot{padding:16px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:#fff}.login-wrap{max-width:380px;margin:60px auto}.login-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 26px;box-shadow:var(--shadow)}.login-card h1{font-size:20px;text-align:center;margin-bottom:4px}.login-card .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:22px}.alert{padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:14px}.alert-error{background:#fff2f0;color:var(--danger);border:1px solid #ffd4d2}.alert-ok{background:#eefaf1;color:var(--ok);border:1px solid #cdeed7}@media (max-width: 720px){.detail,.grid-2{grid-template-columns:1fr}th.hide-sm,td.hide-sm{display:none}}