:root{--bg:#f5f3ee;--surface:#fbfaf7;--surface-2:#f0ece4;--ink:#111827;--ink-soft:#3c4658;--line:#1118271a;--brand-deep:#0f2742;--brand-navy:#163b63;--gold:#b8893c;--gold-soft:#d8b77a;--success:#166534;--danger:#b42318;--font-brand:"Source Serif 4", "Georgia", serif;--font-body:-apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--ink);font-family:var(--font-body);line-height:1.55}a{color:var(--brand-navy);text-decoration:none}h1,h2,h3{font-family:var(--font-brand);color:var(--brand-deep);line-height:1.15}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}.nav{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.nav .mark{font-family:var(--font-brand);color:var(--brand-deep);font-size:1.15rem;font-weight:700}.nav .mark span{color:var(--gold)}.hero{max-width:720px;padding:72px 0 48px}.hero h1{margin-bottom:16px;font-size:2.6rem}.hero p{color:var(--ink-soft);margin-bottom:14px;font-size:1.12rem}.btn{background:var(--brand-deep);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:11px 22px;font-size:1rem;display:inline-block}.btn.gold{background:var(--gold)}.btn.ghost{color:var(--brand-deep);border:1px solid var(--line);background:0 0}.btn:disabled{opacity:.5;cursor:default}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}.grid{gap:16px;display:grid}.muted{color:var(--ink-soft);font-size:.95rem}.pill{background:var(--surface-2);color:var(--ink-soft);border-radius:999px;padding:2px 10px;font-size:.8rem;display:inline-block}.pill.ok{color:var(--success);background:#e7f0e9}input,textarea{border:1px solid var(--line);width:100%;font:inherit;background:#fff;border-radius:8px;padding:10px 12px}textarea{resize:vertical;min-height:90px}label{color:var(--ink-soft);margin:12px 0 4px;font-size:.9rem;display:block}.err{color:var(--danger);margin-top:10px;font-size:.92rem}.doorhead{border-top:4px solid var(--gold)}.footer{color:var(--ink-soft);padding:48px 0 32px;font-size:.9rem}.lab-grid{grid-template-columns:280px 1fr;align-items:start;gap:20px;display:grid}@media (max-width:900px){.lab-grid{grid-template-columns:1fr}}.step{border-bottom:1px solid var(--line);align-items:flex-start;gap:10px;padding:8px 0;font-size:.95rem;display:flex}.step input{width:auto;margin-top:4px}.chatlog{border:1px solid var(--line);white-space:pre-wrap;background:#fff;border-radius:10px;min-height:180px;max-height:420px;padding:14px;font-size:.95rem;overflow-y:auto}.coach{border:1px solid var(--gold-soft);background:#fdf9f0;border-radius:10px;margin-top:12px;padding:14px}.coach .t{color:var(--gold);letter-spacing:.04em;text-transform:uppercase;font-size:.85rem;font-weight:600}.savehint{color:var(--ink-soft);font-size:.8rem}