html,body,#app{margin:0;padding:0;min-height:100%;background-color:#f5f7f9;color:#1a2b2d;font-size:15px;line-height:1.5;font-family:system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif}.merchant-muted{color:#7a8a8c;font-size:13px}.merchant-card{background:#fff;border-radius:12px;padding:16px;margin-bottom:12px;box-shadow:0 1px #0d5c630f}