:root{--bg:#f3f4f6;--card:#ffffff;--border:#e5e7eb;--text:#111827;--muted:#6b7280;--primary:#2563eb;--primary-d:#1d4ed8;--green:#16a34a;--red:#dc2626;--amber:#d97706}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}a{color:var(--primary);text-decoration:none}h1{font-size:20px;margin:0 0 16px}h2{font-size:16px;margin:24px 0 12px}.btn{display:inline-block;padding:8px 14px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer;font-size:14px}.btn:hover{background:#f9fafb}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-d)}.btn-danger{color:var(--red);border-color:#fca5a5}.btn-sm{padding:4px 10px;font-size:13px}.field{display:block;margin:12px 0}.field>span{display:block;color:var(--muted);margin-bottom:6px;font-size:13px}input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;color:var(--text)}textarea{min-height:64px;resize:vertical}.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{width:360px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:28px;box-shadow:0 10px 30px rgba(0,0,0,.06)}.auth-card h1,.auth-error{text-align:center}.auth-error{background:#fef2f2;color:var(--red);padding:8px 12px;border-radius:8px}.auth-hint{color:var(--muted);font-size:12px;margin-top:14px;text-align:center}.auth .btn-primary{width:100%;margin-top:8px}.admin-shell{min-height:100vh}.admin-nav{display:flex;align-items:center;gap:18px;background:#fff;border-bottom:1px solid var(--border);padding:0 20px;height:56px;position:-webkit-sticky;position:sticky;top:0;z-index:10}.admin-nav .brand{font-weight:700}.admin-nav nav{display:flex;gap:4px;flex:1 1;flex-wrap:wrap}.admin-nav nav a{padding:7px 12px;border-radius:8px;color:var(--muted)}.admin-nav nav a:hover{background:#f3f4f6;color:var(--text)}.admin-nav nav a.active{background:#eef2ff;color:var(--primary);font-weight:600}.admin-nav .logout{display:flex;align-items:center;gap:10px;margin:0}.admin-nav .logout .user{color:var(--muted);font-size:13px}.admin-main{max-width:1080px;margin:0 auto;padding:24px 20px 48px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:14px;gap:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px}.card .label{color:var(--muted);font-size:13px}.card .value{font-size:26px;font-weight:700;margin-top:6px}.panel{padding:20px;margin-top:16px}.panel,.table-wrap{background:var(--card);border:1px solid var(--border);border-radius:12px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);white-space:nowrap}th{color:var(--muted);font-weight:600;background:#fafafa}tr:last-child td{border-bottom:none}code{background:#f3f4f6;padding:1px 6px;border-radius:5px;font-size:12px}pre{background:#0b1020;color:#d6e2ff;padding:14px 16px;border-radius:10px;overflow-x:auto;font-size:12.5px;line-height:1.6}.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}.badge-green{background:#dcfce7;color:var(--green)}.badge-amber{background:#fef3c7;color:var(--amber)}.badge-red{background:#fee2e2;color:var(--red)}.badge-gray{background:#f3f4f6;color:var(--muted)}.badge-blue{background:#dbeafe;color:var(--primary)}.banner{padding:10px 14px;border-radius:8px;margin-bottom:16px}.banner-ok{background:#dcfce7;color:var(--green)}.banner-err{background:#fef2f2;color:var(--red)}.muted{color:var(--muted)}.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}.row .field{flex:1 1;min-width:160px;margin:6px 0}.inline-form{display:inline}.toolbar{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}.general-qrcode-grid{display:grid;grid-template-columns:minmax(260px,1fr) 170px;grid-gap:14px 18px;gap:14px 18px;align-items:stretch;margin:12px 0 16px}.general-qrcode-grid .field{margin:0}.general-qrcode-grid textarea,.qrcode-preview{min-height:150px}.qrcode-preview{display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:8px;background:#fafafa;padding:10px;text-align:center}.qrcode-preview img{display:block;width:150px;height:150px}.order-actions{display:flex;gap:6px;align-items:flex-start;flex-wrap:wrap;min-width:250px}.order-detail{display:inline-block}.order-detail summary{list-style:none;cursor:pointer}.order-detail summary::-webkit-details-marker{display:none}.order-detail-panel{width:min(560px,72vw);margin-top:8px;padding:12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);white-space:normal}.detail-grid{display:grid;grid-template-columns:84px minmax(0,1fr);grid-gap:8px 10px;gap:8px 10px;align-items:start}.detail-grid span{color:var(--muted)}.detail-grid strong{font-weight:500}.detail-grid code{display:block;overflow-wrap:anywhere;white-space:normal}.callback-error{margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}.callback-error p{margin:6px 0 0;color:var(--red);overflow-wrap:anywhere}.callback-error pre{margin:8px 0 0;max-height:180px;white-space:pre-wrap;overflow-wrap:anywhere}@media (max-width:720px){.general-qrcode-grid{grid-template-columns:1fr}.qrcode-preview{justify-content:flex-start}}