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span{width:6px;height:6px;border-radius:50%;background:var(--text-faint);animation:blink 1.3s infinite}.bubble.typing span:nth-child(2){animation-delay:.2s}.bubble.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25}30%{opacity:1}}.chat-compose{display:flex;gap:9px;padding:14px 16px;border-top:1px solid var(--border);flex-shrink:0}.chat-compose .input{flex:1}@media(max-width:860px){.chat-shell{grid-template-columns:1fr;height:calc(100vh - var(--nav-h) - 70px)}.chat-shell.has-thread .chat-list{display:none}.chat-shell:not(.has-thread) .chat-thread{display:none}.chat-back{display:block}}@media(max-width:600px){.chat-shell{height:calc(100vh - var(--nav-h) - 150px)}}:root{--bg: #0d0b14;--bg-elev-1: #16131f;--bg-elev-2: #1e1a2b;--bg-elev-3: #272138;--accent: #ff5c8a;--accent-hover: #ff7ba1;--accent-dim: rgba(255, 92, 138, .12);--accent-glow: rgba(255, 92, 138, .35);--violet: #8b6cff;--violet-dim: rgba(139, 108, 255, .14);--teal: #3ddad7;--text: #f4f2f8;--text-muted: #a49dba;--text-faint: #6b6480;--border: #2a2438;--border-strong: #3a3350;--success: #48d597;--warning: #ffb84d;--danger: #ff5f56;--radius-sm: 8px;--radius: 12px;--radius-lg: 18px;--radius-xl: 26px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow: 0 8px 30px rgba(0, 0, 0, .4);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .5);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;--font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;--font-mono: "SF Mono", "Cascadia Code", Consolas, monospace;--maxw: 1140px;--nav-h: 64px}*{box-sizing:border-box}html,body{margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4{margin:0 0 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.lede{color:var(--text-muted);font-size:1.05rem;max-width:620px}.empty{text-align:center;padding:70px 24px;border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--bg-elev-1)}.empty h3{margin-bottom:8px}.empty p{color:var(--text-muted);max-width:420px;margin:0 auto 22px}.spinner{width:22px;height:22px;border:2.5px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.center-col{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:80px 20px;color:var(--text-muted)}.toast-wrap{position:fixed;bottom:24px;left:50%;transform:translate(-50%);z-index:300;display:flex;flex-direction:column;gap:10px;width:min(440px,calc(100vw - 32px))}.toast{background:var(--bg-elev-3);border:1px solid var(--border-strong);border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow-lg);font-size:.92rem;animation:toast-in .25s 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