:root{font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif;color:#17263d;background:#eff3f8;font-synthesis:none;color-scheme:light;--blue:#2459e0;--muted:#63738b;--line:#e2e8f1}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,summary{ -webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #2459e0;outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}[hidden]{display:none!important}.preview-bar{min-height:40px;background:#e3eaf5;color:#56677e;padding:7px 28px;display:flex;align-items:center;justify-content:center;gap:28px;font-size:11px}.preview-bar>span:first-child{display:flex;align-items:center;gap:7px}.preview-bar i{width:5px;height:5px;background:#2459e0;border-radius:50%}.preview-bar nav{display:flex;gap:4px}.preview-bar a{padding:5px 12px;border-radius:5px}.preview-bar a[aria-current]{background:#fff;color:#2459e0}.preview-note{color:#72809a}.shell{max-width:1168px;padding:0 40px;margin:auto}header{display:flex;align-items:center;height:112px;gap:28px}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;letter-spacing:-.6px}.brand svg{width:36px;height:36px}.brand b{font-weight:500}.header-detail{font-size:12px;color:#79879a;border-left:1px solid #cad4e2;padding-left:24px}.help-link{margin-left:auto;font-size:12px;color:#63738b}.help-link span{margin-left:8px}main{display:grid;grid-template-columns:1fr 1.12fr;gap:48px;align-items:center;min-height:610px;padding:20px 0 50px}.intro{padding:8px 0}.intro h1{font-size:47px;font-weight:650;letter-spacing:-1.7px;line-height:1.32;margin:0 0 22px}.intro-copy>p{font-size:15px;line-height:1.9;color:var(--muted);margin:0}.device-scene{height:240px;position:relative;margin-top:29px;display:flex;align-items:center;gap:0}.computer{width:264px;position:relative;flex-shrink:0}.computer-display{height:169px;background:#fff;border:6px solid #26364c;border-bottom-width:10px;border-radius:10px 10px 4px 4px;padding:9px 16px;box-shadow:0 14px 28px #27426912}.window-head{display:flex;gap:4px;align-items:center}.window-head>span{width:3px;height:3px;background:#adb9c9;border-radius:50%}.window-head small{font-size:6px;margin-left:auto;color:#667b98}.timeline{display:flex;align-items:center;height:29px;gap:3px;border-bottom:1px solid #edf0f7;margin:4px 0 8px;position:relative}.timeline i{height:7px;width:7px;background:#b0c6f8;border-radius:1px}.timeline i:nth-child(3n){height:14px}.timeline i:nth-child(4n){height:19px}.timeline i:nth-child(5n){height:10px}.timeline:after{content:"";height:26px;border-left:1px solid #2459e0;position:absolute;left:40%}.computer-display p{text-align:center;margin:5px 0;font-size:8px;letter-spacing:.7px}.lyric-muted{color:#a5afc0}.computer-display .lyric-current{color:#2459e0;font-size:11px;font-weight:650}.playback{display:flex;align-items:center;gap:9px;margin-top:13px;color:#8d9bb0;font-size:7px}.playback>div{height:2px;background:#e5eaf2;flex:1}.playback i{display:block;width:42%;height:2px;background:#2459e0}.playback small{font-size:6px}.computer-base{height:8px;background:#aebdce;border-radius:1px 1px 10px 10px;width:284px;margin-left:-10px}.signal-path{display:flex;align-items:center;gap:6px;color:#2459e0;width:64px;flex-shrink:0;margin-top:28px}.signal-path span{flex:1;border-top:1px dashed #9caed0}.signal-path svg{width:21px;height:21px}.pad{width:112px;height:161px;background:#fff;border:5px solid #26364c;border-radius:13px;position:relative;flex-shrink:0;transform:rotate(5deg);margin-top:25px;box-shadow:12px 16px 24px #27426912}.camera{position:absolute;top:-3px;left:50%;width:2px;height:2px;background:#8592a5;border-radius:50%}.pad>div{padding:18px 10px}.pad small{font-size:6px;color:#8592a5}.pad p{font-size:16px;line-height:1.5;letter-spacing:-.7px;color:#2459e0;font-weight:600;margin:16px 0}.pad-position{font-size:5px;color:#8290a7;display:flex;align-items:center;gap:3px}.pad-position i{height:3px;width:3px;background:#2459e0;border-radius:50%}.local-note{display:flex;gap:8px;align-items:center;font-size:11px;color:#73829a}.local-note svg{width:17px;height:17px;flex-shrink:0}.connection-panel{background:#fff;border-radius:22px;padding:34px 34px 0;box-shadow:0 8px 40px #18395c09;border:1px solid #e4eaf3}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.section-kicker{font-size:11px;color:#79879b}h2{font-size:25px;font-weight:650;letter-spacing:-.8px;margin:8px 0 0}.network-badge{display:flex;gap:6px;align-items:center;white-space:nowrap;font-size:10px;color:#54765f;padding:6px 8px;background:#f1f7f2;border-radius:6px}.network-badge i{width:5px;height:5px;border-radius:50%;background:#6e9a76}.panel-description{font-size:12px;color:var(--muted);line-height:1.85;margin:19px 0 28px}.directory-heading{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:19px;font-size:11px;color:#718099}.directory-heading button{border:0;background:transparent;color:var(--blue);padding:5px 0 5px 8px;font-size:11px;display:flex;align-items:center;gap:5px}.directory-heading svg{width:15px;height:15px}#status{font-size:10px;line-height:1.7;color:#7e8da3;min-height:17px;margin:9px 0 14px}.empty{min-height:236px;border:1px solid #e6ecf5;background:#f7f9fc;border-radius:12px;padding:25px 10px 24px;text-align:center}.empty-icon{position:relative;width:58px;height:58px;display:grid;place-items:center;margin:0 auto 13px;border-radius:16px;background:#e9effa;color:#6f8abe}.empty-icon svg{width:36px;height:36px}.empty-icon>span{position:absolute;right:-3px;bottom:2px;width:13px;height:13px;border:3px solid #f7f9fc;background:#aabbd6;border-radius:50%}.empty h3{font-size:15px;font-weight:550;margin:0 0 10px}.empty p{font-size:11px;line-height:1.9;color:#77859b;margin:0}.listening{font-size:9px;color:#8090a8;display:flex;justify-content:center;align-items:center;gap:6px;margin-top:17px}.listening i{width:4px;height:4px;border-radius:50%;background:#809bcf}.host{border:1px solid #e2e8f2;border-radius:11px;padding:23px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;background:#fbfcfe}.host[data-verified=true]{border-color:#bdcff7;background:#f4f7ff}.host strong{font-size:16px;font-weight:600;letter-spacing:-.3px;overflow-wrap:anywhere}.host p{font-size:9px;color:#8390a4;margin:10px 0 0;line-height:1.7}.host[data-verified=true] p{color:#3f65a5}.connect{white-space:nowrap;font-size:11px;padding:10px 17px;border-radius:7px;background:#2459e0;color:#fff;font-weight:500}.host[data-verified=false] .connect{background:#fff;color:#2459e0;border:1px solid #ccd8f0}.connect:hover{background:#1948c4;color:#fff}.footnote{font-size:10px;line-height:1.8;color:#8b97aa;margin:15px 0 24px}.help{border-top:1px solid var(--line);margin:0 -34px;padding:0 34px}.help summary{list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center;padding:21px 0;cursor:pointer;color:#5c6d86;font-size:11px}.help summary::-webkit-details-marker{display:none}.help summary svg{width:16px;height:16px;transition:transform .2s}.help[open] summary svg{transform:rotate(180deg)}.help>p{font-size:11px;line-height:1.9;color:#738099;margin:0 0 18px}.help label{font-size:11px;display:block;margin-bottom:8px;color:#62738d}.manual-controls{display:flex;gap:8px}.manual-controls input{min-width:0;width:100%;flex:1;border:1px solid #dce3ed;border-radius:7px;padding:11px;font-size:11px;background:#f8fafd;color:#17263d}.manual-controls button{border:0;background:#2459e0;color:#fff;border-radius:7px;padding:10px 13px;font-size:11px;white-space:nowrap}#manual-status{font-size:11px;color:#2459e0;line-height:1.7}footer{border-top:1px solid #dce4ee;padding:23px 0 30px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:10px;color:#8592a6}footer>span:first-child{color:#5f718c;font-weight:600;font-size:12px}@media(min-width:1400px){main{padding-top:50px;min-height:680px}}@media(max-width:1000px){.shell{padding:0 28px}main{gap:28px;grid-template-columns:1fr 1.15fr}.intro h1{font-size:38px}.device-scene{transform:scale(.8);transform-origin:left center;width:440px;margin-right:-88px;height:210px}.connection-panel{padding:28px 25px 0}.help{margin:0 -25px;padding:0 25px}.header-detail{display:none}.local-note{font-size:10px}}@media(max-width:760px){.preview-bar{padding:7px 16px;justify-content:space-between;gap:8px}.preview-note{display:none}.preview-bar nav{gap:0}.preview-bar a{padding:5px 8px;font-size:10px}.shell{padding:0 22px}header{height:82px}.brand{font-size:16px;gap:9px}.brand svg{width:31px;height:31px}.help-link{font-size:10px}main{display:flex;flex-direction:column;align-items:stretch;gap:25px;padding:17px 0 34px}.intro{position:relative;padding:0}.intro h1{font-size:34px;line-height:1.35;letter-spacing:-1px;margin-bottom:15px}.intro-copy>p{font-size:12px;line-height:1.85}.device-scene{transform:scale(.7);width:440px;height:174px;margin:3px 0 -5px;transform-origin:left center}.local-note{font-size:9px;margin-top:0}.connection-panel{padding:26px 22px 0;border-radius:18px}h2{font-size:23px}.section-heading{gap:10px}.panel-description{margin-bottom:21px;font-size:11px}.help{margin:0 -22px;padding:0 22px}.empty{min-height:230px}.host{padding:20px 13px}.host strong{font-size:14px}.host p{font-size:9px}.connect{padding:10px 13px}.footnote{margin-bottom:19px}.manual-controls{flex-wrap:wrap}.manual-controls input{flex-basis:100%}footer{flex-wrap:wrap;row-gap:10px}footer>span:last-child{display:none}}@media(max-width:360px){.shell{padding:0 16px}.device-scene{transform:scale(.63);height:165px}.preview-bar{padding:7px 10px}.preview-bar>span:first-child{font-size:10px}.preview-bar a{padding:5px 6px}.network-badge{font-size:9px;padding:5px 6px}.connection-panel{padding:24px 18px 0}.help{margin:0 -18px;padding:0 18px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Readability and mobile task priority, after UI review. */
#status{font-size:12px;color:#52647e;line-height:1.8;min-height:22px}
.host p{font-size:12px;color:#52647e;line-height:1.8}
.footnote{font-size:12px;color:#52647e;line-height:1.8}
.empty p,.listening,.help>p,.help label,.local-note{font-size:12px;color:#52647e}
.panel-description,.help summary{font-size:13px;color:#52647e}
.directory-heading,.directory-heading button{font-size:12px}
.directory-heading button{min-height:44px;padding:10px 6px}
.connect{font-size:13px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.manual-controls input{font-size:16px;min-height:44px}
.manual-controls button{font-size:13px;min-height:44px}
@media(max-width:760px){
 main{gap:22px}
 .intro h1{font-size:29px;margin-bottom:9px}
 .intro h1 br{display:none}
 .intro-copy>p{font-size:13px;margin:0}
 .intro-copy>p br{display:none}
 .device-scene,.local-note{display:none}
 .panel-description{font-size:13px;margin:15px 0 17px}
 .panel-description br{display:none}
 .connection-panel{padding-top:23px}
 .host p{font-size:12px}
 .host strong{font-size:14px}
 .connect{padding:10px 13px}
 .network-badge{color:#46684d}
}