:root{color-scheme:dark;--page:#0d1520;--panel:#111e2d;--terminal:#0a111b;--line:#26364a;--text:#e4edf7;--muted:#8c9eb3;--accent:#85c9f4;--button:#acdafa;--ink:#10283c;--error:#ffb7a8}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--text);font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}a{color:inherit;text-decoration:none}button,a,input{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent)}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}.topbar{height:80px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-family:Bahnschrift,"Segoe UI",sans-serif;font-size:23px;font-weight:600;letter-spacing:-.6px}.brand-icon{display:grid;place-items:center;width:35px;height:32px;border:1px solid #4f7799;border-radius:7px;color:var(--accent);font:700 21px Consolas,monospace}.brand-divider{height:20px;width:1px;background:var(--line);margin:0 5px}.brand-note{color:var(--muted);font-size:13px;font-weight:400;letter-spacing:1px}.help-link{color:#b3c3d4;font-size:13px}.help-link span{margin-left:12px}.workspace{display:grid;grid-template-columns:348px minmax(0,1fr);min-height:calc(100vh - 140px);padding:32px 40px 0;gap:30px;max-width:1760px;margin:auto}.sidebar{padding:12px 0 0}.section-heading{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px;letter-spacing:1.5px}.protocol{font:11px Consolas,monospace;border:1px solid var(--line);padding:4px 7px;border-radius:4px;letter-spacing:.5px}h1{font-size:27px;letter-spacing:-.8px;font-weight:600;margin:25px 0 10px}.intro{color:var(--muted);margin:0 0 30px;line-height:1.8}label{display:block;font-size:12px;color:#bccbdc;margin:0 0 9px}input{border:1px solid #314359;background:#131f2e;color:var(--text);border-radius:6px;width:100%;height:44px;padding:0 12px;transition:border-color .15s}input::placeholder{color:#64778f;font-size:12px}input:focus{border-color:var(--accent)}.field-row{display:grid;grid-template-columns:95px 1fr;gap:14px;margin:19px 0}.password-field{position:relative}.password-field input{padding-right:60px}.password-field button{position:absolute;right:10px;top:12px;border:0;background:none;color:var(--muted);font-size:12px}.primary{margin-top:25px;width:100%;height:45px;border:0;background:var(--button);color:var(--ink);border-radius:6px;font-weight:600;display:flex;align-items:center;justify-content:space-between;padding:0 15px}.primary:hover:not(:disabled){background:#c1e4fc}.primary span{font-size:21px}.form-note{font-size:11px;color:var(--muted);line-height:1.7;margin:12px 0 0}#notice{margin:15px 0 20px;min-height:36px;line-height:1.7;font-size:12px;color:var(--accent)}#notice.error{color:var(--error)}.helper-card{border:1px solid var(--line);border-radius:9px;padding:17px 18px;background:#111d2b}.helper-heading{display:flex;align-items:center;gap:9px}.helper-heading h2{font-size:13px;font-weight:500;margin:0}#helper-version{margin-left:auto;font:11px Consolas,monospace;color:var(--muted)}.status-dot,.footer-dot{display:inline-block;width:6px;height:6px;background:#65758b;border-radius:50%}.status-dot.ready{background:#90d7c3}.helper-card p{font-size:12px;color:var(--muted);margin:10px 0 15px;line-height:1.7}.secondary{height:36px;width:100%;background:#203248;border:1px solid #3c5570;border-radius:5px;color:var(--text);font-size:12px}.download{display:flex;justify-content:space-between;margin-top:16px;color:var(--accent);font-size:12px}.download-meta{display:block;color:#73869e;font:10px "Segoe UI",sans-serif;margin-top:7px}.privacy-note{display:flex;gap:12px;color:var(--muted);font-size:11px;line-height:1.8;margin:22px 0}.privacy-note>span{font-size:27px;color:#6591ab}.privacy-note p{margin:0}.terminal-panel{min-width:0;border:1px solid #304156;border-radius:10px;overflow:hidden;background:var(--terminal);display:flex;flex-direction:column;min-height:600px;height:calc(100vh - 164px);box-shadow:0 14px 50px #0002}.terminal-toolbar{height:54px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);background:#142131;padding:0 18px}.terminal-tab{display:flex;align-items:center;gap:12px;min-width:0;font-size:12px}#session-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:300px}.tab-symbol{color:var(--accent);font:15px Consolas,monospace}.session-badge{color:var(--muted);border:1px solid #324359;border-radius:3px;padding:2px 6px;font-size:10px;white-space:nowrap}.session-badge.connected{color:#90d7c3;border-color:#34584f}.terminal-actions{display:flex;gap:4px}.terminal-actions button{border:0;border-radius:4px;background:transparent;color:#bfd0e2;padding:6px 9px;font-size:11px;white-space:nowrap}.terminal-actions button:hover:not(:disabled){background:#24364d}.terminal-body{flex:1;position:relative;min-height:0}#terminal{position:absolute;inset:0;padding:16px 10px 5px 18px}#terminal[hidden]{display:none}.xterm{height:100%}.xterm-viewport{scrollbar-width:thin}#empty-terminal{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:20px}#empty-terminal[hidden]{display:none}.empty-mark{font:70px Consolas,monospace;color:#4d7297;letter-spacing:-10px;margin-bottom:22px}.empty-mark span{color:#8db7d7}.terminal-body h2{font-size:23px;font-weight:400;letter-spacing:1px;margin:0 0 14px}.terminal-body p{color:var(--muted);font-size:13px;margin:0}.route{display:flex;align-items:center;gap:15px;margin-top:38px;color:#a5bacf;font-size:11px}.route span{border:1px solid #2a4057;border-radius:5px;padding:9px 14px;background:#111e2c}.route i{font-style:normal;color:#5f86a9;font:11px Consolas,monospace}.terminal-body .empty-footnote{margin-top:15px;color:#60758d;font-size:11px}.terminal-footer{display:flex;justify-content:space-between;gap:8px;height:32px;padding:0 15px;align-items:center;border-top:1px solid #203146;color:#738aa4;font:10px Consolas,"Microsoft YaHei",monospace}.terminal-footer>span:first-child{display:flex;align-items:center;gap:7px}.footer-dot{width:5px;height:5px;background:#6384a2}.site-footer{height:60px;max-width:1760px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 40px;color:#687e97;font-size:11px}.guide{max-width:840px;margin:55px auto;padding:0 30px 60px;line-height:1.9}.guide h1{font-size:32px;margin-bottom:25px}.guide h2{font-size:19px;margin-top:35px}.guide p,.guide li{color:#afc0d2}.guide a{color:var(--accent);text-decoration:underline}.guide code{background:#203248;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}.guide pre{white-space:pre-wrap;font-size:12px;color:var(--muted)}@media(min-width:1500px){.workspace{grid-template-columns:365px minmax(0,1fr);gap:40px}}@media(max-width:1000px){.workspace{grid-template-columns:300px minmax(0,1fr);padding:24px 24px 0;gap:20px}.topbar{padding:0 24px}.terminal-toolbar{padding:0 10px}.terminal-actions{gap:0}.terminal-actions button{padding:6px}.session-badge{display:none}.route{gap:7px}.route span{padding:8px}.terminal-body h2{font-size:19px}.site-footer{padding:0 24px}}@media(max-width:740px){.topbar{height:65px;padding:0 20px}.brand-note,.brand-divider{display:none}.workspace{display:flex;flex-direction:column;padding:15px 20px 0;gap:12px}.sidebar{padding-top:12px}h1{margin-top:15px}.intro{margin-bottom:20px}.helper-card{margin-bottom:0}.privacy-note{margin:15px 0}.terminal-panel{height:65vh;min-height:400px}.site-footer{padding:0 20px}.terminal-body h2{font-size:20px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}