:root{--tc-bg:#f6f8fc;--tc-card:#fff;--tc-text:#172033;--tc-muted:#64748b;--tc-border:#dbe3ef;--tc-primary:#2563eb;--tc-soft:#eff6ff}*{box-sizing:border-box}body{margin:0;background:var(--tc-bg);color:var(--tc-text);font:16px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}.tc-wrap{max-width:1180px;margin:auto;padding:24px}.tc-head,.tc-card{background:var(--tc-card);border:1px solid var(--tc-border);border-radius:18px;padding:22px;margin-bottom:18px}.tc-head h1{margin:0 0 6px;font-size:clamp(28px,5vw,44px)}.tc-head p{margin:0;color:var(--tc-muted)}.tc-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tc-card label{font-weight:700;display:block;margin-bottom:8px}.tc-card textarea{width:100%;min-height:310px;resize:vertical;padding:14px;border:1px solid var(--tc-border);border-radius:12px;font:inherit;background:inherit;color:inherit}.tc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.tc-btn{border:0;border-radius:10px;padding:10px 16px;font-weight:700;cursor:pointer;background:var(--tc-primary);color:#fff}.tc-btn.secondary{background:var(--tc-soft);color:var(--tc-primary)}.tc-status{color:var(--tc-muted);margin-top:10px}.tc-note{font-size:14px;color:var(--tc-muted)}select{padding:8px;border:1px solid var(--tc-border);border-radius:8px}@media(max-width:760px){.tc-grid{grid-template-columns:1fr}.tc-wrap{padding:12px}.tc-card{padding:15px}textarea{min-height:230px}}@media(prefers-color-scheme:dark){:root{--tc-bg:#0f172a;--tc-card:#111c31;--tc-text:#e5edf8;--tc-muted:#9fb0c7;--tc-border:#29364d;--tc-soft:#16284a}}