:root{color-scheme:light;font-family:Inter,Microsoft YaHei,PingFang SC,Noto Sans SC,Arial,sans-serif;line-height:1.5;color:#17212b;background:#f6f8fb;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--brand: #65b8ef;--brand-strong: #2788c7;--ok: #16804b;--danger: #c92a2a;--ink-muted: #627184;--line: #d8e0e8;--surface: #ffffff;--surface-soft: #eef6fc}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,#fafdff,#eef4f8 52%,#f7f9fb)}button,input,select{font:inherit}button{border:0}.app-shell{min-height:100vh;padding:18px clamp(14px,3vw,36px) 24px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 auto 18px;max-width:1180px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;width:42px;height:42px;place-items:center;border-radius:8px;background:#17212b;color:#fff;font-weight:800}.brand h1{margin:0;font-size:clamp(22px,3vw,32px);font-weight:760;letter-spacing:0}.status-line{margin:2px 0 0;color:var(--ink-muted);font-size:14px}.install-button{min-width:44px;min-height:40px;padding:8px 14px;border-radius:8px;color:#fff;background:#17212b;cursor:pointer}.install-button[hidden]{display:none}.workspace{max-width:1180px;margin:0 auto}.control-band,.record-band,.data-band{width:100%;padding:18px 0}.selector-row{display:grid;grid-template-columns:minmax(160px,1fr) auto auto;align-items:end;gap:12px}.field label{display:block;margin-bottom:7px;color:#7bbce8;font-size:clamp(20px,2.5vw,28px);font-weight:700}.select,.input{width:100%;height:42px;border:1px solid var(--line);border-radius:6px;padding:0 12px;color:#17212b;background:#fff;outline:0}.input:focus,.select:focus{border-color:var(--brand);box-shadow:0 0 0 3px #65b8ef2e}.primary-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:60px}.pill-button{min-height:50px;padding:10px 18px;border-radius:25px;color:#fff;background:#97d4ff;font-size:clamp(18px,2vw,26px);font-weight:700;cursor:pointer;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}.pill-button:hover,.pill-button:focus-visible{background:var(--brand);box-shadow:0 8px 22px #2788c72e;transform:translateY(-1px)}.pill-button.secondary{background:#5f7182}.pill-button.danger{background:#d65555}.pill-button.compact{min-height:42px;font-size:16px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.row-stepper{display:flex;align-items:center;gap:8px;color:var(--ink-muted)}.icon-button{display:grid;width:40px;height:40px;place-items:center;border-radius:8px;background:#fff;border:1px solid var(--line);color:#17212b;cursor:pointer}.icon-button:disabled{color:#aab5c0;cursor:not-allowed}.tables-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.tables-grid>*{min-width:0}.table-panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden}.table-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;background:#97d4ff;color:#fff}.table-heading h2{margin:0;font-size:22px;font-weight:740;letter-spacing:0}.seat-section+.seat-section{margin-top:24px}.seat-title{margin-bottom:10px;color:#17212b;font-size:20px;font-weight:760}.badge{display:inline-flex;min-height:26px;align-items:center;border-radius:8px;padding:2px 9px;color:#fff;background:var(--ok);font-size:13px;font-weight:700}.badge.danger{background:var(--danger)}.record-form{display:grid;gap:10px;padding:14px}.form-row{display:grid;grid-template-columns:120px minmax(0,1fr);align-items:center;gap:10px}.form-row label{font-size:18px}.readonly{display:flex;min-height:40px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:0 12px;background:#f9fbfd}.readonly.error{color:var(--danger);font-weight:760}.table-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}.data-panel .table-wrap{border-width:0;border-radius:0}.data-table{width:100%;min-width:0;border-collapse:collapse;table-layout:fixed}.data-table th,.data-table td{border-bottom:1px solid var(--line);padding:9px 7px;text-align:center}.data-table th{background:#f0f6fb;color:#17212b;font-weight:720;line-height:1.25;white-space:normal}.data-table td{white-space:nowrap}.data-table tr:last-child td{border-bottom:0}.data-table tr.out-of-range td{background:#fff0f0;color:#8d1d1d}.empty-cell{color:#9aa6b2}.bottom-actions{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}.data-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;margin-top:22px}.notice{margin-top:14px;color:var(--ink-muted);font-size:14px}@media(max-width:760px){.app-shell{padding:14px 12px 22px}.topbar{align-items:flex-start}.selector-row,.primary-actions,.bottom-actions,.data-actions{grid-template-columns:1fr}.primary-actions{margin-top:30px}.tables-grid{grid-template-columns:1fr}.toolbar{align-items:flex-start;flex-direction:column}.form-row{grid-template-columns:1fr;gap:5px}.pill-button{font-size:20px}.data-table{min-width:560px}}