*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f5f7fa;color:#1d2733;line-height:1.5}
header{background:#1f6f5c;color:#fff;padding:24px 16px;text-align:center}header h1{margin:0;font-size:1.8rem}header p{margin:6px 0}
.sample-banner{background:#fff4e5;color:#7a4a00;border-radius:6px;padding:6px;margin:8px auto;max-width:880px;font-size:.9rem}
.search{display:flex;gap:8px;max-width:880px;margin:10px auto;flex-wrap:wrap}.search input{flex:2;min-width:200px}.search select{flex:1;min-width:160px}
input,select{padding:10px;border:1px solid #c8d1db;border-radius:8px;font-size:1rem}
nav{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}nav button{padding:6px 12px;border:1px solid #fff;background:transparent;color:#fff;border-radius:20px;cursor:pointer}nav button.on{background:#fff;color:#1f6f5c}
main{max-width:880px;margin:0 auto;padding:16px}section h2{color:#1f6f5c;border-bottom:2px solid #e2e8ee;padding-bottom:4px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.card{background:#fff;border-radius:12px;padding:16px;box-shadow:0 1px 4px rgba(0,0,0,.08)}.card h3{margin:4px 0;font-size:1.05rem}
.tag{display:inline-block;background:#eef6f3;color:#1f6f5c;font-size:.75rem;padding:2px 8px;border-radius:10px}.sample{background:#fff4e5;color:#b06000}
.amt{font-weight:700;color:#1f6f5c}.meta{font-size:.82rem;color:#667}
.btn{display:inline-block;margin-top:8px;padding:9px 14px;background:#1f6f5c;color:#fff;border:0;border-radius:8px;cursor:pointer;text-decoration:none}.btn[disabled]{background:#aab4bd;cursor:not-allowed}
.code{font-family:monospace;background:#f0f0f0;padding:3px 8px;border-radius:4px;border:1px dashed #999}.copy{padding:3px 8px;margin-left:6px;cursor:pointer}
.tablewrap{overflow-x:auto}table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}th,td{padding:10px;text-align:left;border-bottom:1px solid #eee;font-size:.9rem}th{background:#eef6f3}
.store-group{margin-bottom:18px}.warn{background:#fff4e5;border-left:4px solid #e08a00;padding:10px;border-radius:6px}
.logo{width:40px;height:40px;border-radius:8px;background:#dfe7ee;display:flex;align-items:center;justify-content:center;font-weight:700;color:#667}
.hidden{display:none}footer{text-align:center;font-size:.85rem;color:#667;padding:24px 16px;max-width:880px;margin:0 auto}footer input{width:260px;max-width:100%}
/* Deal/merchant/bank offer titles — heavier for readability; family/size/spacing unchanged */
.card h3,.store-group>h3,table td b{font-weight:800}