:root{--bg:#f6f7fb;--card:#fff;--text:#172033;--muted:#6b7280;--line:#e5e7eb;--main:#2563eb;--green:#16a34a;--red:#dc2626;--dark:#111827;--orange:#ea580c}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text)}
a{color:var(--main);text-decoration:none}.wrap{max-width:1180px;margin:0 auto;padding:22px}.top{background:var(--dark);color:#fff}.top .wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 22px}.brand{font-size:20px;font-weight:800;color:#fff}.nav a{color:#dbeafe;margin-left:16px;font-size:14px}.hero{padding:38px 0 18px}.hero h1{font-size:34px;margin:0 0 12px}.hero p{color:var(--muted);font-size:16px;margin:0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 10px 30px rgba(15,23,42,.05);margin-bottom:16px}.product h3{font-size:20px;margin:0 0 8px}.price{font-size:28px;font-weight:900;margin:14px 0;color:#0f172a}.tag{display:inline-block;border:1px solid #bfdbfe;background:#eff6ff;color:#1d4ed8;border-radius:999px;padding:4px 10px;font-size:12px;margin:4px 4px 0 0}.muted{color:var(--muted)}.btn{display:inline-block;border:0;border-radius:12px;background:var(--main);color:#fff!important;padding:11px 16px;cursor:pointer;font-weight:700}.btn:hover{filter:brightness(.96)}.btn.small{padding:7px 10px;border-radius:9px;font-size:13px}.btn.green{background:var(--green)}.btn.gray{background:#64748b}.btn.danger{background:var(--red)}.btn.orange{background:var(--orange)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;font-size:15px;background:#fff}textarea{min-height:110px}label{font-weight:700;display:block;margin:11px 0 6px}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}.alert{padding:12px 14px;border-radius:12px;margin:10px 0}.alert.ok{background:#ecfdf5;color:#166534;border:1px solid #bbf7d0}.alert.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert.warn{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}.codebox{background:#0b1020;color:#dbeafe;border-radius:14px;padding:14px;white-space:pre-wrap;overflow:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace}table{width:100%;border-collapse:collapse;font-size:14px}th,td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}th{color:#475569;background:#f8fafc}.pill{border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800;display:inline-block}.pill.pending{background:#fef3c7;color:#92400e}.pill.paid,.pill.received{background:#dcfce7;color:#166534}.pill.cancelled,.pill.failed{background:#fee2e2;color:#991b1b}.pill.active{background:#dbeafe;color:#1e40af}.footer{color:#94a3b8;text-align:center;padding:24px}.copy{cursor:pointer}.paybox{max-width:620px;margin:18px auto}.number{font-size:30px;font-weight:900;letter-spacing:.5px}.smscode{font-size:38px;font-weight:900;color:#16a34a;letter-spacing:2px}.notice{line-height:1.8}.hidden{display:none}@media(max-width:640px){.top .wrap{display:block}.nav{margin-top:10px}.nav a{margin:0 12px 0 0}.hero h1{font-size:28px}.wrap{padding:16px}table{font-size:12px}.number{font-size:24px}}