:root{--primary: #2563eb;--primary-dark: #1d4ed8;--bg: #f5f6f8;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--border: #e5e7eb;--danger: #dc2626;--success: #16a34a;--warning: #d97706}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}.container{max-width:960px;margin:0 auto;padding:0 16px}.main{padding:24px 16px 48px;min-height:60vh}.site-header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}.brand{font-size:18px;font-weight:700;color:var(--primary);text-decoration:none}.nav{display:flex;align-items:center;gap:16px}.nav a{color:var(--text);text-decoration:none;font-size:14px}.nav a:hover{color:var(--primary)}.site-footer{border-top:1px solid var(--border);padding:20px 0;color:var(--muted);font-size:13px;text-align:center}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.card h2{margin:0 0 12px;font-size:18px}.card h3{margin:0 0 8px;font-size:16px}.btn{display:inline-block;padding:8px 16px;border-radius:8px;border:1px solid var(--primary);background:var(--primary);color:#fff;font-size:14px;cursor:pointer;text-decoration:none}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{padding:5px 12px;font-size:13px}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:transparent}.btn-danger{background:var(--danger);border-color:var(--danger)}input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid rgba(37,99,235,.25);border-color:var(--primary)}textarea{min-height:90px;resize:vertical}label{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}.notice{padding:12px 16px;border-radius:8px;background:#eff6ff;color:var(--primary);margin-bottom:16px}.notice.error{background:#fef2f2;color:var(--danger)}.notice.success{background:#f0fdf4;color:var(--success)}.notice.warn{background:#fffbeb;color:var(--warning)}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.tag{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;background:#eef2ff;color:var(--primary);margin-right:6px}.tag.gray{background:#f3f4f6;color:var(--muted)}.tag.green{background:#f0fdf4;color:var(--success)}.tag.orange{background:#fffbeb;color:var(--warning)}.tag.red{background:#fef2f2;color:var(--danger)}.muted{color:var(--muted);font-size:13px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.mt{margin-top:16px}.mb{margin-bottom:16px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500;font-size:13px}.product-img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;background:#f3f4f6}.price{color:var(--danger);font-weight:700}.tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}.tabs button{padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:#fff;cursor:pointer;font-size:13px}.tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.article-body{white-space:pre-wrap;line-height:1.8}.comment{border-top:1px solid var(--border);padding:10px 0}.locked-box{border:1px dashed var(--warning);background:#fffbeb;border-radius:8px;padding:14px;color:var(--warning);font-size:14px}