:root{--bg:#fff;--bg-soft:#f7f8fa;--bg-card:#fff;--fg:#1a1a2e;--fg-soft:#5a6072;--muted:#8a90a2;--border:#e8eaed;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-soft:#eff4ff;--accent:#f59e0b;--danger:#dc2626;--success:#16a34a;--radius:10px;--radius-sm:6px;--shadow-sm:0 1px 2px rgba(16,24,40,.05);--shadow:0 4px 14px rgba(16,24,40,.08);--shadow-lg:0 12px 32px rgba(16,24,40,.12);--maxw:1240px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{background:var(--bg-soft);color:var(--fg);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;background:none}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:var(--radius-sm);font-weight:600;border:1px solid transparent;transition:all .15s;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-outline{border-color:var(--border);background:#fff;color:var(--fg)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-ghost{color:var(--fg-soft)}.btn-ghost:hover{color:var(--primary);background:var(--primary-soft)}.btn-danger{background:var(--danger);color:#fff}.btn-lg{padding:13px 26px;font-size:16px}.btn-sm{padding:6px 12px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.site-header{background:#fff;border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:50}.site-header 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var(--border)}.cat-nav .inner{display:flex;gap:4px;overflow-x:auto;padding:8px 20px}.cat-nav a{padding:8px 14px;border-radius:999px;color:var(--fg-soft);font-size:14px;white-space:nowrap}.cat-nav a.active,.cat-nav a:hover{background:var(--primary-soft);color:var(--primary)}.hero{background:linear-gradient(135deg,#1e3a8a,#2563eb 60%,#3b82f6);color:#fff;border-radius:16px;padding:56px 48px;margin:24px 0;position:relative;overflow:hidden}.hero h1{font-size:38px;font-weight:800;letter-spacing:-1px;margin-bottom:12px}.hero p{font-size:17px;opacity:.92;max-width:540px;margin-bottom:24px}.hero .btn-primary{background:#fff;color:var(--primary)}.hero .btn-primary:hover{background:#f1f5ff}.section{margin:32px 0}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.section-head h2{font-size:22px;font-weight:700}.section-head a{color:var(--primary);font-size:14px;font-weight:600}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:18px;gap:18px}@media (max-width:980px){.product-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:720px){.product-grid{grid-template-columns:repeat(2,1fr)}}.product-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .2s;display:flex;flex-direction:column}.product-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#d6dae3}.product-card .img-wrap{aspect-ratio:1;background:var(--bg-soft);overflow:hidden}.product-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.product-card:hover .img-wrap img{transform:scale(1.04)}.product-card .body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1 1}.product-card .title{font-size:14px;font-weight:600;line-height:1.4;color:var(--fg);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:39px}.product-card .tags{display:flex;gap:4px;flex-wrap:wrap}.tag{font-size:11px;padding:2px 7px;border-radius:4px;background:var(--primary-soft);color:var(--primary)}.tag.hot{background:#fff1e6;color:#c2410c}.tag.new{background:#e8f9ef;color:var(--success)}.product-card .price-row{display:flex;align-items:baseline;gap:8px;margin-top:auto}.product-card .price{font-size:18px;font-weight:800;color:var(--danger)}.product-card .compare{font-size:13px;color:var(--muted);text-decoration:line-through}.product-card .add-btn{margin-top:6px}.product-detail{display:grid;grid-template-columns:1.1fr 1fr;grid-gap:40px;gap:40px;margin:24px 0}@media (max-width:820px){.product-detail{grid-template-columns:1fr}}.gallery .main-img{aspect-ratio:1;border-radius:var(--radius);overflow:hidden;background:var(--bg-soft);border:1px solid var(--border)}.gallery .main-img img{width:100%;height:100%;object-fit:cover}.gallery .thumbs{display:flex;gap:8px;margin-top:10px}.gallery .thumbs img{width:64px;height:64px;object-fit:cover;border-radius:6px;border:1px solid var(--border);cursor:pointer}.gallery .thumbs img.active{border-color:var(--primary)}.pd-info h1{font-size:26px;font-weight:700;margin-bottom:10px}.pd-info .price{font-size:28px;font-weight:800;color:var(--danger)}.pd-info .compare{font-size:16px;color:var(--muted);text-decoration:line-through;margin-left:8px}.pd-info .meta{color:var(--fg-soft);font-size:14px;margin:14px 0;display:flex;gap:18px}.pd-info .desc{color:var(--fg-soft);line-height:1.7;margin:18px 0;padding:18px;background:var(--bg-soft);border-radius:var(--radius-sm)}.qty-row{gap:14px;margin:18px 0}.qty-input,.qty-row{display:flex;align-items:center}.qty-input{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.qty-input button{padding:8px 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img{width:64px;height:64px;object-fit:cover;border-radius:6px}.cart-item .info{flex:1 1}.cart-item .info .t{font-size:14px;font-weight:600}.cart-item .info .p{color:var(--danger);font-weight:700;margin-top:4px}.cart-item .qty{display:flex;align-items:center;gap:8px;margin-top:6px}.cart-item .qty button{width:24px;height:24px;border:1px solid var(--border);border-radius:4px}.empty{text-align:center;padding:40px 0;color:var(--muted)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:600;color:var(--fg-soft);margin-bottom:6px}.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border .15s;background:#fff}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}textarea.input{min-height:88px;resize:vertical}.field-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.site-footer{background:#0f172a;color:#94a3b8;margin-top:60px;padding:48px 0 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10px;border-radius:999px;font-size:12px;font-weight:600}.pill.pending{background:#fff7e6;color:#c2410c}.pill.paid{background:#e8f9ef;color:var(--success)}.pill.shipped{background:#eff4ff;color:var(--primary)}.pill.delivered{background:#e8f9ef;color:var(--success)}.pill.cancelled{background:#fdeaea;color:var(--danger)}.pill.active{background:#e8f9ef;color:var(--success)}.pill.draft{background:var(--bg-soft);color:var(--muted)}.admin-layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh;background:var(--bg-soft)}@media (max-width:820px){.admin-layout{grid-template-columns:1fr}}.admin-sidebar{background:#0f172a;color:#cbd5e1;padding:18px 0;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.admin-sidebar .brand{color:#fff;font-weight:800;font-size:18px;padding:0 20px 18px}.admin-sidebar a{display:flex;align-items:center;gap:10px;padding:10px 20px;font-size:14px;color:#cbd5e1}.admin-sidebar a:hover{background:#1e293b;color:#fff}.admin-sidebar a.active{background:var(--primary);color:#fff}.admin-sidebar .group-title{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:#64748b;padding:16px 20px 6px}.admin-main{padding:24px 28px}.admin-topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.admin-topbar h1{font-size:22px;font-weight:700}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px;margin-bottom:24px}@media (max-width:820px){.stat-grid{grid-template-columns:repeat(2,1fr)}}.stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px}.stat-card .label{color:var(--muted);font-size:13px}.stat-card .value{font-size:26px;font-weight:800;margin-top:6px}.stat-card .delta{font-size:12px;margin-top:4px}.table-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.data-table{width:100%;border-collapse:collapse}.data-table td,.data-table th{padding:12px 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