:root{--bg:#fafaf7;--bg-elev:#fff;--bg-sunken:#f3f2ed;--fg:#1a1a17;--fg-muted:#6b6862;--fg-dim:#9b9892;--border:#e6e3dc;--border-strong:#d4d0c7;--accent:#c96f3e;--accent-soft:#f5e5d8;--bubble-user:#1a1a17;--bubble-user-fg:#fafaf7;--bubble-assistant:transparent;--thinking-bg:#f7f4ec;--thinking-fg:#6b6862;--danger:#c0392b;--shadow:0 1px 2px #0000000a, 0 4px 12px #0000000a;--radius:10px;--radius-sm:6px;--radius-lg:16px;--font-sans:ui-sans-serif, system-ui, -apple-system, "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono:ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;--font-serif:"Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;--body-font-family:var(--font-serif);--body-font-weight:500}@media (prefers-color-scheme:dark){:root{--bg:#0f0f0e;--bg-elev:#18181a;--bg-sunken:#0a0a0a;--fg:#ececec;--fg-muted:#a3a3a3;--fg-dim:#6b6b6b;--border:#262626;--border-strong:#3a3a3a;--accent:#e88a5a;--accent-soft:#2a1d14;--bubble-user:#ececec;--bubble-user-fg:#0f0f0e;--bubble-assistant:transparent;--thinking-bg:#161614;--thinking-fg:#8a8a8a;--shadow:0 1px 2px #0006, 0 4px 12px #0000004d}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}html{interpolate-size:allow-keywords}body{font-family:var(--font-sans);background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:15px;line-height:1.6}button{font:inherit;cursor:pointer;color:inherit;background:0 0;border:none}input,textarea{font:inherit;color:inherit}textarea{resize:none}a{color:var(--accent);text-decoration:none}.app{background:var(--bg);height:100dvh;display:flex}.sidebar{border-right:1px solid var(--border);background:var(--bg-sunken);flex-direction:column;flex-shrink:0;width:280px;display:flex}.sidebar-header{align-items:center;gap:8px;padding:16px 16px 8px;display:flex}.sidebar-title{letter-spacing:.02em;color:var(--fg-muted);flex:1;font-size:14px;font-weight:600}.sidebar-actions{padding:0 12px 8px}.btn-new{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);justify-content:center;align-items:center;gap:6px;width:100%;padding:10px 12px;font-size:14px;font-weight:500;transition:background .12s;display:flex}.btn-new:hover{background:var(--accent-soft);border-color:var(--accent)}.conv-list{flex:1;padding:4px 8px 16px;overflow-y:auto}.conv-item{border-radius:var(--radius-sm);text-align:left;width:100%;color:var(--fg-muted);align-items:center;margin-bottom:1px;padding:9px 10px;font-size:14px;transition:background 80ms,color 80ms;display:flex;position:relative;overflow:hidden}.conv-item:hover{background:var(--bg-elev);color:var(--fg)}.conv-item.active{background:var(--bg-elev);color:var(--fg);font-weight:500}.conv-item-title{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.conv-item-del{opacity:0;color:var(--fg-dim);border-radius:4px;padding:2px 6px;font-size:12px;transition:opacity .1s}.conv-item:hover .conv-item-del,.conv-item.active .conv-item-del{opacity:1}.conv-item-del:hover{color:var(--danger);background:var(--bg)}.sidebar-footer{border-top:1px solid var(--border);color:var(--fg-muted);align-items:center;gap:8px;padding:12px 16px;font-size:13px;display:flex}.sidebar-footer-user{flex:1;align-items:center;gap:8px;display:flex}.avatar{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-size:12px;font-weight:600;display:flex}.icon-btn{color:var(--fg-muted);border-radius:4px;padding:4px 6px;font-size:12px}.icon-btn:hover{background:var(--bg-elev);color:var(--fg)}.main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative}.main-header{border-bottom:1px solid var(--border);color:var(--fg-muted);background:var(--bg);flex-shrink:0;align-items:center;height:52px;padding:14px 24px;font-size:14px;display:flex}.main-header-title{color:var(--fg);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:15px;font-weight:500;overflow:hidden}.main-header-model{font-family:var(--font-mono);color:var(--fg-dim);background:var(--bg-sunken);border-radius:4px;padding:3px 8px;font-size:11px}.ctx-bar{font-family:var(--font-mono);color:var(--fg-muted);align-items:center;gap:8px;margin-left:10px;font-size:11px;display:inline-flex}.ctx-num{font-variant-numeric:tabular-nums;letter-spacing:.01em}.ctx-of{color:var(--fg-dim);margin-left:1px}.ctx-track{background:var(--bg-sunken);border-radius:2px;width:80px;height:4px;display:inline-block;position:relative;overflow:hidden}.ctx-fill{background:var(--fg-muted);border-radius:2px;height:100%;transition:width .2s,background-color .2s;display:block}.ctx-warn .ctx-fill{background:#c9a23e}.ctx-crit .ctx-fill{background:var(--danger)}.ctx-crit .ctx-num{color:var(--danger)}@media (width<=720px){.ctx-track{width:50px}.ctx-of{display:none}}.cache-timer{background:var(--bg-sunken);font-family:var(--font-mono);color:var(--fg-muted);font-variant-numeric:tabular-nums;border-radius:4px;align-items:center;gap:4px;margin-left:8px;padding:2px 6px;font-size:11px;display:inline-flex}.cache-dot{background:#3a8f5c;border-radius:50%;width:6px;height:6px;animation:2s ease-in-out infinite pulse-soft}.cache-timer.mid .cache-dot{background:#c9a23e}.cache-timer.low .cache-dot{background:var(--danger)}@keyframes pulse-soft{0%,to{opacity:.6}50%{opacity:1}}.settings-divider{background:var(--border);height:1px;margin:14px 0}.toggle-row{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:7px 0;display:flex}.toggle-label{color:var(--fg);flex:1;font-size:13px}.toggle-switch{background:var(--bg-sunken);border:1px solid var(--border-strong);border-radius:999px;flex-shrink:0;width:32px;height:18px;transition:background .15s,border-color .15s;position:relative}.toggle-switch.on{background:var(--accent);border-color:var(--accent)}.toggle-thumb{background:var(--bg-elev);border-radius:50%;width:14px;height:14px;transition:transform .16s cubic-bezier(.22,1,.36,1);position:absolute;top:1px;left:1px;box-shadow:0 1px 2px #0003}.toggle-switch.on .toggle-thumb{transform:translate(14px)}@media (width<=720px){.cache-timer{display:none}}.main-header-actions{align-items:center;gap:4px;margin-left:12px;display:flex;position:relative}.header-icon-btn{width:30px;height:30px;color:var(--fg-muted);border-radius:6px;justify-content:center;align-items:center;transition:background .1s,color .1s;display:inline-flex}.header-icon-btn:hover{background:var(--bg-sunken);color:var(--fg)}.header-icon-btn svg{width:16px;height:16px}.font-panel{z-index:60;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);width:320px;box-shadow:var(--shadow);transform-origin:100% 0;padding:14px;animation:.16s cubic-bezier(.22,1,.36,1) panel-pop;position:absolute;top:calc(100% + 8px);right:0}@keyframes panel-pop{0%{opacity:0;transform:translateY(-4px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.font-panel-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.font-panel-title{color:var(--fg);font-size:13px;font-weight:600}.font-panel-sub{color:var(--fg-muted);font-size:12px;font-weight:500}.font-family-grid{grid-template-columns:1fr 1fr 1fr;gap:6px;margin-bottom:16px;display:grid}.font-family-card{border:1px solid var(--border);background:var(--bg);text-align:center;border-radius:8px;flex-direction:column;align-items:center;gap:8px;padding:10px 8px;transition:border-color .12s,background .12s;display:flex}.font-family-card:hover{border-color:var(--border-strong)}.font-family-card.active{border-color:var(--accent);background:var(--accent-soft)}.font-family-label{color:var(--fg-muted);letter-spacing:.02em;font-size:11px}.font-family-card.active .font-family-label{color:var(--accent);font-weight:600}.font-family-sample{color:var(--fg);font-size:16px;line-height:1.2}.font-weight-row{flex-direction:column;gap:8px;display:flex}.font-weight-header{justify-content:space-between;align-items:baseline;display:flex}.font-weight-val{font-family:var(--font-mono);color:var(--fg-muted);font-size:12px}.font-weight-slider{appearance:none;background:var(--bg-sunken);border-radius:2px;outline:none;width:100%;height:4px}.font-weight-slider::-webkit-slider-thumb{appearance:none;background:var(--accent);border:2px solid var(--bg-elev);cursor:pointer;width:16px;height:16px;box-shadow:0 0 0 1px var(--accent);border-radius:50%;transition:transform .1s}.font-weight-slider::-webkit-slider-thumb:active{transform:scale(1.15)}.font-weight-slider::-moz-range-thumb{background:var(--accent);border:2px solid var(--bg-elev);cursor:pointer;width:14px;height:14px;box-shadow:0 0 0 1px var(--accent);border-radius:50%}.font-weight-ticks{font-family:var(--font-mono);justify-content:space-between;font-size:10px;display:flex}.font-weight-tick{color:var(--fg-dim);border-radius:4px;padding:2px 6px;transition:color 80ms,background 80ms}.font-weight-tick:hover{color:var(--fg-muted);background:var(--bg-sunken)}.font-weight-tick.active{color:var(--accent);font-weight:600}.thread{flex:1;padding:24px 0 16px;overflow-y:auto}.thread-inner{flex-direction:column;gap:22px;max-width:760px;margin:0 auto;padding:0 24px;display:flex}.msg{flex-direction:column;gap:8px;display:flex}.msg.user{align-items:flex-end}.msg.assistant{align-items:flex-start}.msg-bubble{border-radius:var(--radius-lg);white-space:pre-wrap;word-wrap:break-word;max-width:100%;padding:11px 16px;line-height:1.65}.msg.user .msg-bubble{background:var(--bubble-user);color:var(--bubble-user-fg);border-bottom-right-radius:4px}.msg.assistant .msg-bubble{background:0 0;padding-left:0;padding-right:0}.thinking-details{border-left:2px solid var(--border-strong);max-width:100%;padding-left:12px}.thinking-details summary{cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none}.thinking-details summary::-webkit-details-marker{display:none}.thinking-summary{color:var(--fg-dim);letter-spacing:.02em;align-items:center;gap:6px;padding:4px 0;font-size:12px;font-weight:500;transition:color .12s;display:inline-flex}.thinking-summary:hover{color:var(--fg-muted)}.thinking-chevron{transform-origin:52.5%;font-size:10px;transition:transform .18s cubic-bezier(.22,1,.36,1);display:inline-block}.thinking-details[open] .thinking-chevron{transform:rotate(90deg)}.thinking-pulse{background:var(--fg-dim);border-radius:50%;width:6px;height:6px;margin-left:2px;animation:1.2s ease-in-out infinite pulse-dot;display:inline-block}@keyframes pulse-dot{0%,to{opacity:.3;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}.thinking-body{color:var(--thinking-fg);background:var(--thinking-bg);border-radius:var(--radius-sm);white-space:pre-wrap;font-size:13px;font-family:var(--font-mono);margin-top:6px;padding:10px 14px;line-height:1.55}.usage-badge{color:var(--fg-dim);font-size:11px;font-family:var(--font-mono);letter-spacing:.01em;-webkit-user-select:text;user-select:text;padding-top:4px}.modal-backdrop{z-index:100;background:#0006;justify-content:center;align-items:center;padding:24px;animation:.14s fade-in;display:flex;position:fixed;inset:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.modal-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;max-width:100%;max-height:90vh;animation:.18s cubic-bezier(.22,1,.36,1) panel-pop;display:flex;overflow:hidden;box-shadow:0 8px 40px #0003}.modal-card.leaderboard{width:min(880px,100%)}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-start;padding:18px 22px;display:flex}.modal-title{font-size:16px;font-weight:600}.modal-sub{color:var(--fg-muted);margin-top:2px;font-size:12px}.modal-close{width:28px;height:28px;color:var(--fg-muted);border-radius:6px;justify-content:center;align-items:center;font-size:20px;line-height:1;display:flex}.modal-close:hover{background:var(--bg-sunken);color:var(--fg)}.lb-totals{background:var(--bg-sunken);border-bottom:1px solid var(--border);font-family:var(--font-mono);color:var(--fg-muted);justify-content:space-between;align-items:baseline;padding:14px 22px;font-size:13px;display:flex}.lb-totals b{color:var(--accent);font-size:15px;font-weight:600}.lb-totals-tokens{font-size:11px}.lb-table-wrap{flex:1;overflow:auto}.lb-table{border-collapse:collapse;width:100%;font-size:13px}.lb-table th,.lb-table td{text-align:left;border-bottom:1px solid var(--border);padding:8px 12px}.lb-table th{background:var(--bg);color:var(--fg-muted);letter-spacing:.04em;text-transform:uppercase;z-index:1;font-size:11px;font-weight:500;position:sticky;top:0}.lb-table td.num,.lb-table th.num{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums}.lb-table td.rank{color:var(--fg-muted);font-weight:600;font-family:var(--font-mono)}.lb-table tbody tr:hover{background:var(--bg-sunken)}.lb-table tbody tr.me,.lb-table tbody tr.me:hover{background:var(--accent-soft)}.lb-table td.cost{color:var(--accent);font-weight:600}.self-tag{color:var(--accent);font-size:10px;font-family:var(--font-mono);margin-left:4px}.thinking-details::details-content{opacity:0;block-size:0;transition:content-visibility .22s allow-discrete, block-size .22s cubic-bezier(.22, 1, .36, 1), opacity .18s ease;overflow:clip}.thinking-details[open]::details-content{opacity:1;block-size:auto}.empty-state{color:var(--fg-muted);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px;display:flex}.empty-state-title{color:var(--fg);font-size:22px;font-weight:500}.empty-state-hint{color:var(--fg-dim);max-width:380px;font-size:14px;line-height:1.7}.composer-wrap{background:var(--bg);flex-shrink:0;padding:12px 24px 20px}.composer{background:var(--bg-elev);border:1px solid var(--border-strong);border-radius:var(--radius-lg);max-width:760px;box-shadow:var(--shadow);margin:0 auto;transition:border-color .12s}.composer:focus-within{border-color:var(--accent)}.composer-input{field-sizing:content;background:0 0;border:none;outline:none;width:100%;min-height:24px;max-height:200px;padding:14px 16px 6px;font-size:15px;line-height:1.55}.composer-attachments{flex-wrap:wrap;gap:8px;padding:12px 14px 0;display:flex}.att-thumb{background:var(--bg-sunken);border:1px solid var(--border);border-radius:8px;width:84px;height:84px;position:relative;overflow:hidden}.att-thumb img{object-fit:cover;width:100%;height:100%;display:block}.att-remove{color:#fff;background:#000000b3;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;font-size:16px;font-weight:300;line-height:1;transition:background .1s;display:flex;position:absolute;top:2px;right:2px}.att-remove:hover{background:#000000e6}.att-size{color:#fff;font-size:10px;font-family:var(--font-mono);text-align:center;pointer-events:none;background:linear-gradient(#0000,#000000b3);padding:8px 4px 2px;position:absolute;bottom:0;left:0;right:0}.composer-attach-btn{width:30px;height:30px;color:var(--fg-muted);border-radius:6px;justify-content:center;align-items:center;transition:background .1s,color .1s;display:inline-flex}.composer-attach-btn:hover:not(:disabled){background:var(--bg-sunken);color:var(--fg)}.composer-attach-btn:disabled{opacity:.4;cursor:not-allowed}.composer-footer{align-items:center;gap:8px;padding:6px 10px 10px;display:flex}.composer-hint{color:var(--fg-dim);flex:1;padding-left:6px;font-size:11px}.btn-send{background:var(--fg);color:var(--bg);border-radius:8px;padding:6px 14px;font-size:13px;font-weight:500;transition:opacity .12s}.btn-send:disabled{opacity:.35;cursor:not-allowed}.btn-stop{background:var(--bg-sunken);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:6px 14px;font-size:13px;font-weight:500}.auth-shell{background:var(--bg);justify-content:center;align-items:center;height:100dvh;padding:24px;display:flex}.auth-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:380px;box-shadow:var(--shadow);padding:32px}.auth-brand{letter-spacing:-.01em;margin-bottom:4px;font-size:20px;font-weight:600}.auth-sub{color:var(--fg-muted);margin-bottom:22px;font-size:13px;line-height:1.55}.auth-tabs{background:var(--bg-sunken);border-radius:8px;gap:4px;margin-bottom:22px;padding:3px;display:flex}.auth-tab{color:var(--fg-muted);border-radius:6px;flex:1;padding:8px;font-size:13px;font-weight:500;transition:all .12s}.auth-tab.active{background:var(--bg-elev);color:var(--fg);box-shadow:0 1px 2px #0000000f}.field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.field-label{color:var(--fg-muted);font-size:12px;font-weight:500}.field-input{background:var(--bg);border:1px solid var(--border-strong);border-radius:8px;outline:none;width:100%;padding:10px 12px;font-size:14px;transition:border-color .12s}.field-input:focus{border-color:var(--accent)}.field-hint{color:var(--fg-dim);font-size:11px;line-height:1.5}.btn-primary{background:var(--fg);width:100%;color:var(--bg);border-radius:8px;margin-top:8px;padding:11px;font-size:14px;font-weight:500;transition:opacity .12s}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.error-msg{color:var(--danger);background:#c0392b14;border:1px solid #c0392b26;border-radius:6px;margin-bottom:12px;padding:10px 12px;font-size:13px}.privacy-note{border-top:1px solid var(--border);color:var(--fg-dim);margin-top:18px;padding-top:16px;font-size:11px;line-height:1.6}.spin{border:2px solid var(--border-strong);border-top-color:var(--fg);vertical-align:middle;border-radius:50%;width:12px;height:12px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.cursor{background:var(--fg);vertical-align:text-bottom;width:2px;height:1em;margin-left:2px;animation:.7s step-end infinite cursor-blink;display:inline-block}@keyframes cursor-blink{50%{opacity:0}}.msg{animation:.22s cubic-bezier(.22,1,.36,1) msg-fade-up}@keyframes msg-fade-up{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.streaming-bubble{animation:none}.markdown{white-space:normal;font-family:var(--body-font-family);font-weight:var(--body-font-weight);font-size:15.5px;line-height:1.75}.msg.user .msg-bubble{font-family:var(--body-font-family);font-weight:var(--body-font-weight)}.msg-attachments{flex-wrap:wrap;justify-content:flex-end;gap:6px;max-width:100%;margin-bottom:6px;display:flex}.msg-attachment{background:var(--bg-sunken);border:1px solid var(--border);border-radius:10px;width:140px;height:140px;transition:transform .12s;display:block;overflow:hidden}.msg-attachment:hover{transform:scale(1.02)}.msg-attachment img{object-fit:cover;width:100%;height:100%;display:block}.msg.user .msg-bubble.collapsed{max-height:12em;position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(#000 70%,#0000 100%);mask-image:linear-gradient(#000 70%,#0000 100%)}.msg-expand-toggle{color:var(--fg-muted);border-radius:6px;margin-top:4px;padding:4px 10px;font-size:12px;transition:background 80ms,color 80ms}.msg-expand-toggle:hover{background:var(--bg-sunken);color:var(--fg)}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown p{margin:0 0 10px}.markdown ul,.markdown ol{margin:0 0 10px;padding-left:22px}.markdown li{margin-bottom:3px}.markdown li>p{margin:0}.markdown li>ul,.markdown li>ol{margin-top:3px;margin-bottom:0}.markdown h1,.markdown h2,.markdown h3,.markdown h4{margin:16px 0 6px;font-weight:600;line-height:1.3}.markdown h1{font-size:1.35em}.markdown h2{font-size:1.2em}.markdown h3{font-size:1.08em}.markdown h4{font-size:1em}.markdown strong{font-weight:600}.markdown em{font-style:italic}.markdown del{color:var(--fg-muted)}.markdown a{color:var(--accent);text-underline-offset:2px;text-decoration:underline}.markdown a:hover{text-decoration-thickness:2px}.markdown code{font-family:var(--font-mono);background:var(--bg-sunken);border:1px solid var(--border);border-radius:4px;padding:1.5px 5px;font-size:.9em}.markdown pre{border-radius:var(--radius-sm);background:var(--bg-sunken);border:1px solid var(--border);margin:0 0 12px;padding:12px 14px;font-size:13px;line-height:1.55;overflow-x:auto}.markdown pre code{font-size:inherit;background:0 0;border:none;padding:0;display:block}.markdown blockquote{border-left:3px solid var(--border-strong);color:var(--fg-muted);margin:0 0 10px;padding:2px 0 2px 14px}.markdown table{border-collapse:collapse;margin:0 0 12px;font-size:.95em;display:block;overflow-x:auto}.markdown th,.markdown td{border:1px solid var(--border);text-align:left;padding:6px 10px}.markdown th{background:var(--bg-sunken);font-weight:600}.markdown hr{border:none;border-top:1px solid var(--border);margin:14px 0}.markdown.is-typing>:last-child:after{content:"";vertical-align:text-bottom;background:var(--fg);width:2px;height:1em;margin-left:2px;animation:.7s step-end infinite cursor-blink;display:inline-block}.msg-toolbar{color:var(--fg-dim);opacity:0;align-items:center;gap:4px;min-height:22px;margin-top:2px;font-size:12px;transition:opacity .1s;display:flex}.msg:hover .msg-toolbar,.msg-toolbar:focus-within{opacity:1}.msg-toolbar:has(.branch-nav){opacity:1}.msg.user .msg-toolbar{justify-content:flex-end}.branch-nav{background:var(--bg-sunken);border:1px solid var(--border);font-variant-numeric:tabular-nums;border-radius:6px;align-items:center;gap:2px;padding:1px 2px;display:inline-flex}.branch-arrow{color:var(--fg-muted);border-radius:4px;padding:1px 6px;font-size:14px;line-height:1}.branch-arrow:hover:not(:disabled){background:var(--bg-elev);color:var(--fg)}.branch-arrow:disabled{opacity:.3;cursor:not-allowed}.branch-count{color:var(--fg-muted);text-align:center;min-width:28px;padding:0 4px;font-size:11px}.msg-action{color:var(--fg-muted);border-radius:6px;padding:3px 8px;font-size:12px;transition:background 80ms,color 80ms}.msg-action.icon-only{justify-content:center;align-items:center;width:28px;height:28px;padding:0;display:inline-flex}.msg-action.icon-only svg{width:15px;height:15px}.msg-action:hover:not(:disabled){background:var(--bg-sunken);color:var(--fg)}.msg-action:disabled{opacity:.4;cursor:not-allowed}.edit-wrap{background:var(--bg-elev);border:1px solid var(--accent);border-radius:var(--radius);flex-direction:column;gap:8px;width:min(100%,560px);padding:10px 14px;display:flex}.edit-textarea{width:100%;font:inherit;resize:none;field-sizing:content;min-height:24px;max-height:360px;color:var(--fg);background:0 0;border:none;outline:none;line-height:1.55}.edit-actions{justify-content:flex-end;align-items:center;gap:8px;display:flex}.btn-link{color:var(--fg-muted);border-radius:6px;padding:6px 10px;font-size:13px}.btn-link:hover{color:var(--fg);background:var(--bg-sunken)}@media (width<=720px){.sidebar{z-index:50;width:260px;height:100dvh;transition:transform .18s;position:absolute;transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:0 0 40px #0003}.sidebar-scrim{z-index:49;background:#0000004d;position:absolute;inset:0}.thread-inner,.composer{padding-left:16px;padding-right:16px}.main-header{padding:12px 16px}}.menu-btn{color:var(--fg-muted);border-radius:6px;margin-right:8px;padding:6px 8px;display:none}.menu-btn:hover{background:var(--bg-sunken)}@media (width<=720px){.menu-btn{display:inline-flex}}