:root{--bg: #0e1621;--panel: #17212b;--panel-2: #1d2a35;--hover: #202b36;--accent: #2ea6ff;--accent-2: #5288c1;--bubble-in: #182533;--bubble-out: #2b5278;--text: #e9edf0;--muted: #7a8a99;--border: #0b1219;--danger: #ff5c5c}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,Segoe UI,Roboto,system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.muted{color:var(--muted)}.tiny{font-size:12px}.center{height:100%;display:flex;align-items:center;justify-content:center}.login-card{width:360px;background:var(--panel);border-radius:16px;padding:36px 32px;text-align:center;box-shadow:0 20px 60px #00000080}.login-logo{font-size:56px}.login-card h1{margin:8px 0 2px;font-size:26px}.login-card form{display:flex;flex-direction:column;gap:10px;margin-top:18px}.login-card input{background:var(--panel-2);border:1px solid transparent;color:var(--text);padding:13px 14px;border-radius:10px;font-size:15px;outline:none}.login-card input:focus{border-color:var(--accent)}.login-card input.code{letter-spacing:10px;text-align:center;font-size:22px}.seg{display:flex;gap:6px;background:var(--panel-2);padding:4px;border-radius:10px;margin-top:16px}.seg button{flex:1;background:transparent;color:var(--muted);border:none;padding:9px;border-radius:7px;cursor:pointer;font-size:14px}.seg button.on{background:var(--accent);color:#fff}.primary{background:var(--accent);color:#fff;border:none;padding:13px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;margin-top:4px}.primary:disabled{opacity:.5;cursor:default}.link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13px}.err{color:var(--danger);font-size:13px}.hint{margin-top:18px;font-size:11px}.tg-block{display:flex;justify-content:center;margin-top:18px;min-height:48px}.tg-note{font-size:12px;padding:10px;background:var(--panel-2);border-radius:10px;margin-top:16px}.tg-note code{color:var(--accent)}.or-divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:16px 0 6px}.or-divider:before,.or-divider:after{content:"";flex:1;height:1px;background:var(--panel-2)}.app{display:grid;grid-template-columns:340px 1fr;height:100%}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}.search{padding:10px 12px}.search input{width:100%;background:var(--panel-2);border:none;color:var(--text);padding:10px 14px;border-radius:20px;outline:none}.list{flex:1;overflow-y:auto}.section-title{padding:8px 16px 4px;font-size:12px;text-transform:uppercase;color:var(--muted);letter-spacing:.5px}.row{width:100%;display:flex;align-items:center;gap:12px;padding:10px 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var(--panel);border-radius:50%}.icon{background:none;border:none;color:var(--muted);font-size:18px;cursor:pointer}.conversation{display:flex;flex-direction:column;height:100%;background:linear-gradient(#0e1621d9,#0e1621d9)}.empty-conv .big-emoji{font-size:48px;text-align:center}.conv-head{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--panel);border-bottom:1px solid var(--border)}.messages{flex:1;overflow-y:auto;padding:18px 14% 8px;display:flex;flex-direction:column;gap:3px}.system{align-self:center;background:#0000004d;color:var(--muted);font-size:12px;padding:4px 12px;border-radius:12px;margin:8px 0}.bubble-row{display:flex}.bubble-row.mine{justify-content:flex-end}.bubble{max-width:70%;background:var(--bubble-in);padding:7px 10px 5px;border-radius:12px;position:relative;font-size:15px;line-height:1.35;word-wrap:break-word}.bubble.mine{background:var(--bubble-out)}.bubble-name{font-size:13px;font-weight:600;color:var(--accent);margin-bottom:2px}.bubble 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