:root{--bg:#0b1020;--panel:#111a2d;--panel2:#152039;--line:#273550;--text:#f2f5fc;--muted:#93a0b8;--mint:#91e3c3;--blue:#8ebfff;--sans:Inter,"Segoe UI",Arial,sans-serif;--mono:Consolas,"Courier New",monospace;--display:"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);min-height:100vh;background-image:radial-gradient(ellipse at 57% 5%,#2c38554d,transparent 48%)}button,input,textarea{font:inherit}.app{min-height:100vh;display:grid;grid-template-columns:68px 1fr}.rail{border-right:1px solid #ffffff0c;display:flex;align-items:center;flex-direction:column;padding:21px 0;color:#8792aa}.brand-mark{width:36px;height:36px;border:1px solid #596c83;border-radius:12px;display:grid;place-items:center;color:var(--mint);text-decoration:none;font:800 18px var(--display);position:relative}.brand-mark span{font:500 10px var(--mono);position:absolute;right:3px;top:1px;color:#d8c8ff}.rail-rule{width:26px;height:1px;background:var(--line);margin:22px 0 12px}.nav{width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:#78859e;font-size:18px;cursor:pointer;margin:3px}.nav:hover,.nav.active{background:#91e3c316;color:var(--mint)}.rail-spacer{flex:1}.local-tag{font:8px/1.6 var(--mono);letter-spacing:1px;text-align:center;color:#67738c;margin-bottom:7px}.main{display:flex;flex-direction:column;min-height:100vh;min-width:0}header{height:68px;border-bottom:1px solid #ffffff0c;display:flex;align-items:center;padding:0 clamp(20px,5vw,72px);gap:24px}.wordmark{text-decoration:none;color:var(--text);font:800 19px var(--display);letter-spacing:-.8px}.wordmark-icon{display:inline-grid;place-items:center;width:25px;height:25px;border-radius:8px;background:var(--mint);color:#10201e;font-size:15px;margin-right:6px}.period{color:var(--mint)}.status{margin-left:10px;font:9px 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0}.guide-note{font-size:10px;line-height:1.6;color:#72809a;margin-top:14px}footer{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:13px clamp(20px,5vw,72px);border-top:1px solid #ffffff0c;color:#68758d;font:8px var(--mono);letter-spacing:.3px}.footer-dot{color:#8290a8}.footer-dot i{width:5px;height:5px;margin-right:4px}@keyframes appear{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}@media(max-width:800px){.examples{grid-template-columns:repeat(2,1fr)}.guide-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.app{grid-template-columns:0 1fr}.rail{display:none}header{height:57px;padding:0 14px;gap:8px}.wordmark{font-size:17px}.status{font-size:7px;margin-left:0;letter-spacing:.3px}.divider{margin:0 2px}.clear{padding:7px 8px}.clear span{display:none}.view{width:calc(100% - 28px);padding-top:27px}.chat-head{align-items:flex-start}.chat-head h1{font-size:27px}.chat-head 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