:root{--bg: #ffffff;--surface: #ffffff;--surface-2: #fafafa;--fg: #111111;--muted: #666666;--muted-2: #888888;--border: #eaeaea;--border-strong: #dddddd;--accent: #0070f3;--black: #000000;--radius: 8px;--radius-sm: 6px;--shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 4px 12px rgba(0, 0, 0, .04);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--fg);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg)}h1{font-size:24px;font-weight:600;letter-spacing:-.02em;margin:0}h3{font-size:15px;font-weight:600;margin:0 0 12px}a{color:inherit;text-decoration:none}.layout{display:grid;grid-template-columns:248px 1fr;height:100vh}.sidebar{border-right:1px solid var(--border);background:var(--surface-2);padding:20px 14px;display:flex;flex-direction:column;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:6px 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var(--border);border-radius:var(--radius-sm);box-shadow:0 8px 24px #0000001f;z-index:20}.slash-item{display:flex;flex-direction:column;gap:2px;align-items:flex-start;text-align:left;border:none;background:transparent;padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--border)}.slash-item:last-child{border-bottom:none}.slash-item.active{background:var(--border)}.slash-command{font-size:13px;font-weight:600;color:var(--fg)}.slash-text{font-size:12px;color:#888;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.thread-input .input{flex:1}.thread-input .thread-textarea{flex:1;min-height:38px;max-height:140px;resize:none;overflow-y:auto;padding:8px 11px;line-height:1.4}.emoji-picker{position:relative;display:flex;align-items:flex-end}.emoji-menu{position:absolute;bottom:calc(100% + 8px);left:0;display:grid;grid-template-columns:repeat(5,1fr);gap:2px;padding:8px;background:var(--surface);border:1px solid 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var(--border);border-radius:12px;padding:28px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}.login-brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px;letter-spacing:-.01em}.login-sub{margin:0;color:var(--muted);font-size:14px}.thread-head-main{display:flex;align-items:center;gap:8px;min-width:0}.mobile-back{display:none}@media(max-width:820px){.layout{grid-template-columns:1fr;grid-template-rows:auto 1fr}.topbar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--surface-2)}.topbar .brand{padding:0}.sidebar{position:fixed;top:0;left:0;bottom:0;width:264px;max-width:82vw;z-index:50;gap:18px;transform:translate(-100%);transition:transform .22s ease;box-shadow:0 12px 40px 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