:root{--bg: #eef0f5;--surface: #ffffff;--surface-2: #f5f6fa;--ink: #1a1c22;--ink-2: #6b7180;--line: #e3e5ec;--accent: #4f56d3;--accent-soft: #ecedfb;--accent-ink: #ffffff;--bubble-user: linear-gradient(135deg, #545be0, #6f76ff);--danger: #d64545;--ok: #2f9e6e;--radius: 16px}@media (prefers-color-scheme: dark){:root{--bg: #0e1014;--surface: #171a21;--surface-2: #1f232c;--ink: #e9ebf2;--ink-2: #8b93a5;--line: #262b36;--accent: #7b82ff;--accent-soft: #23263c;--accent-ink: #0e1014;--bubble-user: linear-gradient(135deg, #5a61e8, #7b82ff)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:PingFang TC,Noto Sans TC,Helvetica Neue,system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;padding:0}input,textarea,select{font:inherit;color:inherit}.app{height:100%;max-width:480px;margin:0 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