:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--border:#2a2f3a;--text:#e6e8ec;--muted:#8b93a3;--accent:#5b8cff;--accent-2:#3d6be0;--accent-contrast:#fff;--ok:#3fb37f;--warn:#e0a23d;--danger:#e05d5d;--radius:10px;--radius-bubble:10px;--radius-composer:10px;--assistant-font:"Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;--assistant-lh:1.65;--brand-gradient:linear-gradient(135deg, #5b8cff, #3d6be0);--transition-theme:background-color .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease}.app[data-brand=gpt]{--bg:#212121;--panel:#171717;--panel-2:#2f2f2f;--border:#3a3a3a;--text:#ececec;--muted:#9b9b9b;--accent:#10a37f;--accent-2:#10a37f;--accent-contrast:#fff;--radius:12px;--radius-bubble:20px;--radius-composer:24px;--assistant-font:"Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;--assistant-lh:1.65;--brand-gradient:linear-gradient(135deg, #10a37f, #0d8c6d)}.app[data-brand=gpt] .msg.user 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stream-pulse}.stream-status-label{letter-spacing:.02em}.stream-caret{vertical-align:-.15em;background:var(--accent);width:.55ch;height:1.05em;margin-left:2px;animation:.9s step-end infinite stream-caret-blink;display:inline-block}@keyframes stream-pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent);transform:scale(.85)}70%{transform:scale(1);box-shadow:0 0 0 8px #0000}to{transform:scale(.85);box-shadow:0 0 #0000}}@keyframes stream-caret-blink{0%,to{opacity:1}50%{opacity:0}}.md-stream-tail{white-space:pre-wrap;margin:0}.md-code.is-open,.md-math.is-open{opacity:.88;border-style:dashed}.md-math{border:1px solid var(--border);border-radius:var(--radius);background:color-mix(in srgb, var(--panel-2) 80%, transparent);white-space:pre-wrap;margin:.75em 0;padding:12px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;line-height:1.5;overflow:auto}.app[data-brand=claude] 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