:root{--bg: #f5f6f8;--panel: #ffffff;--text: #1f2329;--muted: #8a9099;--brand: #2f6df6;--border: #e6e8eb;--user: #2f6df6}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:var(--bg);color:var(--text)}.muted{color:var(--muted)}.small{font-size:12px}.error{color:#d93025;font-size:13px}.auth-wrap{display:flex;align-items:center;justify-content:center;height:100%}.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:32px;width:320px;display:flex;flex-direction:column;gap:12px;box-shadow:0 8px 30px #0000000f}.auth-card h1{margin:0;font-size:24px}.auth-card input{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px}.auth-card button{padding:10px;border:none;border-radius:8px;background:var(--brand);color:#fff;font-size:15px;cursor:pointer}.auth-card button:disabled{opacity:.6}.auth-card a{color:var(--brand);text-decoration:none}.auth-card.wizard{width:440px}.wizard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:4px}.wizard-grid .card{width:100%}@media (max-width: 480px){.wizard-grid{grid-template-columns:1fr}}.primary{background:var(--brand);color:#fff;border:none;border-radius:8px;padding:10px 18px;font-size:15px;cursor:pointer}.primary:disabled{opacity:.6}.admin-panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:16px;max-width:560px}.admin-field{display:flex;flex-direction:column;gap:6px}.admin-field label{font-size:13px;font-weight:600;color:var(--text)}.admin-field input,.admin-field select{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:var(--bg);color:var(--text)}.invite-box{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.invite-code{font-size:20px;font-weight:700;letter-spacing:2px;color:var(--brand);background:#f0f4ff;border:1px dashed var(--brand);border-radius:8px;padding:8px 14px}.ghost.small{padding:4px 10px;font-size:12px}.home{max-width:880px;margin:0 auto;padding:32px 20px}.home-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:24px}.home-header h1{margin:0;font-size:24px}.home-actions{display:flex;align-items:center;gap:12px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}@media (max-width: 680px){.grid{grid-template-columns:repeat(2,1fr)}}.card{background:var(--panel);border:1px solid var(--border);border-top:4px solid var(--brand);border-radius:12px;padding:20px;text-align:left;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.card:hover{transform:translateY(-3px);box-shadow:0 8px 22px #00000014}.card-emoji{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff}.card-label{font-size:17px;font-weight:600;margin-top:12px}.card-tag{font-size:12px;margin-top:4px}.ghost{background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px 12px;cursor:pointer;color:var(--text)}.chat{display:flex;flex-direction:column;height:100%;max-width:760px;margin:0 auto}.chat-header{display:flex;align-items:center;gap:16px;padding:14px 18px;background:var(--panel);border-bottom:2px solid var(--border)}.chat-title{font-weight:600}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.bubble{max-width:78%;padding:10px 14px;border-radius:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word;font-size:14px}.bubble.user{align-self:flex-end;background:var(--user);color:#fff;border-bottom-right-radius:4px}.bubble.assistant{align-self:flex-start;background:var(--panel);border:1px solid var(--border);border-bottom-left-radius:4px}.composer{display:flex;gap:10px;padding:14px 18px;background:var(--panel);border-top:1px solid var(--border)}.composer input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px}.composer button{padding:0 20px;border:none;border-radius:8px;background:var(--brand);color:#fff;cursor:pointer}.composer button:disabled{opacity:.6}.pad{padding:40px}