:root{color-scheme:dark;--bg:#081820;--panel:#0d242d;--line:#28424b;--text:#edf5f4;--muted:#a3b9bf;--accent:#88e8c1;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 15% 0%,#123b42 0,transparent 50%),var(--bg);color:var(--text);font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input{font:inherit}button{cursor:pointer;min-height:46px;border-radius:10px;padding:10px 18px;border:1px solid transparent;font-weight:600;transition:background .15s,opacity .15s}button:disabled{opacity:.38;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.primary{background:var(--accent);color:#072a25}.primary:hover:enabled{background:#b1f5d9}.secondary{background:#17333c;color:var(--text);border-color:var(--line)}.danger{background:#492b35;color:#ffc0bd;border-color:#67404b}.text-button{padding:0 5px;min-height:44px;background:transparent;color:var(--muted);font-size:13px}.header,main,footer{width:min(1240px,calc(100% - 64px));margin:auto}.header{min-height:90px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.header>a:last-child{color:var(--muted);font-size:14px}.brand{font-size:27px;font-weight:750;letter-spacing:-1px}.brand span{color:var(--accent)}.intro{padding:56px 0 32px}.eyebrow{font-size:11px;font-weight:650;color:var(--accent);letter-spacing:2px;margin:0 0 12px}h1{font-size:clamp(30px,4vw,48px);line-height:1.3;letter-spacing:-1.5px;margin:0 0 16px}h2,h3,p{margin-top:0}.intro>p:last-child{color:var(--muted);margin-bottom:0}.panel{border:1px solid var(--line);background:var(--panel);border-radius:18px;overflow:hidden}.access{padding:22px 26px;margin-bottom:22px}#accessForm{max-width:650px}label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.access-row{display:flex;gap:12px}input{min-width:0;width:100%;border:1px solid #46636d;border-radius:10px;background:#091c24;padding:10px 14px;color:var(--text)}.access-row button{flex-shrink:0}.hint{font-size:13px;color:var(--muted);line-height:1.75;margin:10px 0 0}#sessionInfo:not([hidden]){display:flex;justify-content:space-between;align-items:center;gap:16px}#sessionInfo h2{margin:4px 0 0;font-size:20px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.stage-head{display:flex;justify-content:space-between;align-items:center;gap:15px;min-height:66px;padding:16px 22px;font-size:14px}#status{color:var(--muted);font-size:12px;text-align:right}#status[data-state=connected]{color:var(--accent)}#status[data-state=incoming]{color:#ffd796}.videos{position:relative;aspect-ratio:4/3;background:#050f16;overflow:hidden}#remoteVideo{width:100%;height:100%;object-fit:contain}.placeholder{position:absolute;inset:0;display:flex;justify-content:center;align-items:center;flex-direction:column;padding:28px;text-align:center;background:radial-gradient(circle at 50% 40%,#12353e,#081820)}.placeholder[hidden]{display:none}.door-icon{font-size:70px;line-height:1;color:var(--accent);font-weight:200;margin-bottom:25px;opacity:.7}.placeholder h2{font-size:22px;margin-bottom:8px}.placeholder p{font-size:13px;color:var(--muted);max-width:300px}.preview{position:absolute;right:18px;bottom:18px;width:25%;min-width:110px;aspect-ratio:4/3;border:1px solid #395b65;background:#102831;border-radius:10px;overflow:hidden}.preview video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.preview span{position:absolute;bottom:0;left:0;right:0;padding:3px 8px;font-size:10px;color:#fff;background:#081820b0}.media-line{display:flex;gap:12px;justify-content:space-between;align-items:center;padding:15px 22px;color:var(--muted);font-size:12px;min-height:58px}#duration{font-variant-numeric:tabular-nums;white-space:nowrap}.playback{display:block;margin:14px auto 0}.playback[hidden]{display:none}.controls{padding:27px 22px}.controls h2{font-size:21px;margin:0}.call-actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:24px}.toggles{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}.toggles button{font-size:12px;padding:9px 5px}.toggles button[aria-pressed=true]{background:#442f36;color:#ffd1d1}.permission-note{margin-top:18px}.events{border-top:1px solid var(--line);margin-top:25px;padding-top:14px}.events-head{display:flex;align-items:center;justify-content:space-between}.events h3{font-size:13px;margin:0}.events ol{list-style:none;padding:0;margin:5px 0 0;max-height:160px;overflow:auto;font-size:12px;color:var(--muted)}.events li{padding:7px 0;border-bottom:1px solid #203942;overflow-wrap:anywhere}.events time{color:#6f939e;font-variant-numeric:tabular-nums;margin-right:8px}.lock-note{border-top:1px solid var(--line);margin-top:24px;padding-top:15px}.details{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin:55px 0}.details h2{font-size:24px;margin-bottom:12px}.details p{color:var(--muted);font-size:14px;max-width:560px}.details details{border-top:1px solid var(--line);padding-top:17px}.details summary{cursor:pointer;font-size:14px;margin-bottom:15px}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:24px 0 36px;color:var(--muted);font-size:13px}.skip{position:fixed;top:-80px;left:20px;background:var(--accent);color:#082821;padding:10px;z-index:10}.skip:focus{top:8px}[hidden]{display:none!important}@media(max-width:950px){.workspace{grid-template-columns:minmax(0,1fr) 255px;gap:14px}.controls{padding:22px 16px}.header,main,footer{width:calc(100% - 40px)}}@media(max-width:700px){.header,main,footer{width:calc(100% - 32px)}.header{min-height:72px}.brand{font-size:24px}.intro{padding:34px 0 25px}.intro>p:last-child{font-size:14px}.workspace{grid-template-columns:1fr}.access{padding:20px}.access-row{flex-direction:column}.stage-head{padding:14px 16px;min-height:59px}.videos{aspect-ratio:4/3}.placeholder{padding:18px}.placeholder h2{font-size:19px}.door-icon{font-size:50px;margin-bottom:15px}.preview{right:10px;bottom:10px;min-width:92px}.media-line{padding:13px 16px}.controls{padding:23px 20px}.call-actions{grid-template-columns:1fr 1fr;margin-top:20px}.toggles button{font-size:13px}.events ol{max-height:100px}.details{grid-template-columns:1fr;gap:18px;margin:36px 0}.details p{margin-bottom:8px}footer{flex-direction:column;gap:10px}#sessionInfo:not([hidden]){align-items:flex-start}#sessionInfo h2{font-size:17px}.header>a:last-child{font-size:12px}}

@media(max-width:700px){body[data-call-state=outgoing] .placeholder,body[data-call-state=connecting] .placeholder{justify-content:flex-start;padding-top:22px}body[data-call-state=outgoing] .door-icon,body[data-call-state=connecting] .door-icon{display:none}}

/* Solution context and explicit guest entry. */
html{scroll-behavior:smooth;scroll-padding-top:24px}.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:30px}.intro>div{max-width:830px}.intro>div>p:last-child{color:var(--muted);margin-bottom:0}.intro-link{display:inline-flex;align-items:center;gap:14px;min-height:44px;flex-shrink:0;font-size:13px;color:var(--accent)}#accessForm{max-width:none}.access-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.access-heading .eyebrow{margin-bottom:4px}.access-heading h2{font-size:21px;font-weight:650;margin:0}.device-tag{border:1px solid var(--line);border-radius:30px;padding:5px 12px;color:var(--muted);font-size:11px}.access-row{align-items:center;gap:20px}.access-row>.hint{margin:0;max-width:700px}#accessCodeField{flex:1;max-width:460px}#accessForm[data-access-mode=code] .access-row{flex-wrap:wrap;align-items:flex-end}#accessForm[data-access-mode=code] .access-row>.hint{flex-basis:100%;max-width:none}.capabilities{margin:65px 0 52px;scroll-margin-top:28px}.section-heading{max-width:780px;margin-bottom:26px}.section-heading h2{font-size:clamp(26px,3vw,34px);font-weight:650;line-height:1.4;margin:0 0 14px}.section-heading>p:last-child{color:var(--muted);font-size:14px;margin:0}.capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.capability-grid article{padding:25px 22px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(135deg,#14332f,#0d242d)}.capability-number{font-size:9px;letter-spacing:1px;color:var(--accent)}.capability-grid h3{font-size:18px;font-weight:600;line-height:1.5;margin:25px 0 12px}.capability-grid p{color:var(--muted);font-size:13px;line-height:1.85;margin:0}.capability-scope{display:flex;align-items:flex-start;gap:24px;margin-top:22px;padding:20px 23px;background:#142d34;border-left:2px solid var(--accent);border-radius:0 8px 8px 0}.capability-scope>span{font-size:12px;color:var(--accent);white-space:nowrap}.capability-scope p{font-size:12px;color:var(--muted);margin:0}.capability-scope strong{color:#d0dfd9;font-weight:600}.details{padding-top:35px;border-top:1px solid var(--line);margin-top:0}.architecture-flow{display:flex;align-items:center;flex-wrap:wrap;gap:9px;margin-top:22px;font-size:11px}.architecture-flow span{border:1px solid var(--line);border-radius:5px;padding:8px 11px;color:#b7d5cd}.architecture-flow i{color:var(--accent);font-style:normal}
@media(max-width:1050px){.capability-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.intro{align-items:flex-start;flex-direction:column;gap:12px}.intro-link{margin-bottom:-10px}}
@media(max-width:700px){.intro>div>p:last-child{font-size:14px}.access-heading{align-items:flex-start;gap:12px}.access-heading h2{font-size:18px}.device-tag{max-width:100px;line-height:1.6;font-size:10px;text-align:center}.access-row{align-items:stretch;gap:12px}#accessCodeField{max-width:none;width:100%}#accessForm[data-access-mode=code] .access-row{align-items:stretch}.access-row>.hint{font-size:12px}.capabilities{margin:42px 0 32px}.section-heading>p:last-child{font-size:13px}.capability-grid{grid-template-columns:1fr;gap:12px}.capability-grid article{padding:22px}.capability-grid h3{margin-top:17px}.capability-scope{display:block;padding:17px 19px}.capability-scope>span{display:block;margin-bottom:8px}.details{padding-top:25px}.architecture-flow{gap:6px;font-size:10px}.architecture-flow span{padding:7px 8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button{transition:none}}