:root{--bg:#101b2b;--panel:#1a2940;--ink:#f4f0e5;--muted:#a4b1c6;--accent:#ff9c79;--purple:#c3b0fa;--mint:#a6dccb}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font-family:'Microsoft YaHei','Noto Sans CJK SC',sans-serif}button,a,input,textarea{font:inherit}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button{border:1px solid #ffffff30;background:#25364f;border-radius:12px;padding:10px 16px}button:hover{filter:brightness(1.12)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button:disabled{opacity:.35;cursor:default}p{line-height:1.75}.top{height:72px;padding:0 3.5vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff19;background:#111c2c}.brand{display:flex;gap:10px;align-items:center;font-size:20px;font-weight:800}.brand>span{background:var(--accent);color:var(--bg);font-size:26px;padding:1px 9px;border-radius:9px}.brand small{font-size:12px;font-weight:400;color:var(--muted);margin-left:12px}.top>div:last-child{display:flex;align-items:center;gap:17px;font-size:13px}.top button{border-radius:30px;padding:8px 14px}main{max-width:1580px;width:94%;margin:auto;padding:24px 0 16px}.slide{display:none}.slide.active{display:block;animation:fade .25s ease-out}@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:23px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:2px;margin:0 0 10px;font-weight:bold}h1{font-size:clamp(30px,3.5vw,56px);margin:0;line-height:1.2;letter-spacing:-1px}em{font-style:normal;color:var(--accent)}h2{font-size:clamp(26px,2.7vw,43px);line-height:1.4;margin:10px 0 15px}h3{font-size:24px}.chip{font-size:13px;padding:9px 14px;border:1px solid #ffffff30;border-radius:30px;color:var(--muted)}.primary{background:var(--accent);color:#172031;border:0;font-weight:bold;padding:14px 23px;border-radius:13px;display:inline-block;box-shadow:0 5px 0 #a75443}.infobar{display:flex;align-items:center;gap:25px;padding:20px 24px;border:1px solid #ffffff18;background:var(--panel);border-radius:18px;margin-top:20px;font-size:18px;min-height:80px}.infobar b{color:var(--accent);flex-shrink:0;font-size:22px}.infobar span{color:#c3cedd;line-height:1.65}.fine{font-size:12px;color:var(--muted);margin:13px 2px}.zone-tabs{display:flex;gap:10px;margin-bottom:20px}.zone-tabs button{flex:1;background:transparent;font-size:17px;border-radius:30px}.zone-tabs button.active{color:#172031;background:var(--accent);border-color:var(--accent);font-weight:bold}.keyboard-wrap{background:linear-gradient(120deg,#20334e,#18263b);border:1px solid #455571;border-radius:24px;padding:25px;box-shadow:0 16px 25px #0004}.keyboard{display:grid;grid-template-columns:15fr 3.3fr 4.1fr;grid-template-rows:auto 1fr;gap:16px}.kbgroup{border:2px solid transparent;border-radius:10px;padding:6px;transition:background .2s,border-color .2s}.kbgroup.chosen{border-color:var(--accent);background:#ff9c7930;box-shadow:0 0 25px #ff9c7925}.function{grid-column:1;display:flex;gap:6px}.main{grid-column:1;grid-row:2;display:flex;flex-direction:column;gap:7px}.navigation{grid-column:2;grid-row:1/3;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr) 2.4fr;gap:6px}.number{grid-column:3;grid-row:2;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(5,1fr);gap:7px}.number [data-code=NumpadAdd]{grid-column:4;grid-row:2/4}.number [data-code=NumpadEnter]{grid-column:4;grid-row:4/6}.number [data-code=Numpad0]{grid-column:1/3}.keyrow{display:flex;gap:6px}.key{min-width:0;padding:0 2px;height:42px;font-family:Arial,sans-serif;font-size:clamp(9px,1vw,15px);color:#29344c;background:#ede9de;border:1px solid #fff9;border-radius:6px;box-shadow:0 5px 0 #8c96a8;position:relative;display:flex;align-items:center;justify-content:center}.key:active,.key.pressed{transform:translateY(4px);box-shadow:0 1px 0 #8c96a8;background:var(--accent)}.function .key{background:#bcb4d6;height:32px}.navigation .key{font-size:9px;height:100%}.number .key{height:100%;font-size:13px}.arrows{grid-column:1/4;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);gap:6px;align-self:end;height:85px}.arrows [data-code=ArrowUp]{grid-column:2}.arrows [data-code=ArrowLeft]{grid-row:2;grid-column:1}.arrows [data-code=ArrowDown]{grid-row:2;grid-column:2}.arrows [data-code=ArrowRight]{grid-row:2;grid-column:3}.locator:after{content:'';position:absolute;width:16px;height:3px;background:currentColor;opacity:.5;bottom:5px;border-radius:4px;left:calc(50% - 8px)}.two{display:grid;grid-template-columns:1fr 1.7fr;gap:25px;min-height:390px}.key-options{display:grid;grid-template-columns:1fr 1fr;gap:13px}.key-options button{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;background:var(--panel);padding:18px}.key-options button.active{border-color:var(--accent);background:#49384a}.key-options kbd{font:700 19px Arial;padding:13px 15px;background:var(--ink);color:#243147;border-radius:9px;box-shadow:0 5px 0 #adb2c0}.key-options span{font-size:16px;color:#cad3df}.paper-window{background:#faf8f1;color:#2d3547;border-radius:20px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 16px 35px #0003}.window-top{background:#ddd9e9;padding:16px 22px;display:flex;justify-content:space-between;color:#736683;font-size:15px}.paper-window textarea{flex:1;border:0;outline:0;resize:none;background:repeating-linear-gradient(#faf8f1 0 39px,#e2dfd7 39px 40px);padding:22px;line-height:40px;font-size:25px;min-height:230px;color:#27364d}.paper-bottom{padding:15px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid #ddd7cc;font-size:15px}.paper-bottom button{color:#73657b;background:#e9e4ee}.home-layout{display:grid;grid-template-columns:1.8fr 1fr;gap:25px}.home-layout>div{padding:30px;background:var(--panel);border-radius:25px}.homekeys{display:flex;gap:10px;justify-content:center;margin:16px 0 25px}.homekey{flex:1;max-width:82px;height:85px;font-size:34px;position:relative;color:#172334;border:0;border-radius:12px;box-shadow:0 8px 0 #65718a}.homekey.pressed{transform:translateY(6px);box-shadow:0 2px 0 #65718a}.finger-pairs{display:grid;grid-template-columns:1fr 1fr;gap:25px;text-align:center}.finger-pairs b{color:var(--accent);font-size:18px}.finger-pairs p{font-size:15px;color:var(--muted)}.finger-pairs strong{font-size:25px;letter-spacing:5px}.space-key{margin:25px auto 0;text-align:center;padding:16px;background:#f4edde;color:#3b485d;border-radius:12px;font-size:16px}.fact{background:#b9b0e9;color:#252842;border-radius:25px;padding:27px}.fact>span{font-size:13px;letter-spacing:2px}.fact em{color:#594282}.fact p{font-size:17px}.capture{margin-top:20px;padding:18px 25px;background:#233b45;border:1px dashed var(--mint);border-radius:15px;color:#c9f0df;font-size:18px;line-height:1.65;min-height:68px}.compact-kb{padding:28px;background:var(--panel);border-radius:24px}.compact-kb.keyboard{display:block}.compact-kb .key{height:49px;font-size:17px}.finger-colors [data-finger="0"],.homekey[data-finger="0"],.finger-legend [data-finger="0"]{background:#f8b9b6}.finger-colors [data-finger="1"],.homekey[data-finger="1"],.finger-legend [data-finger="1"]{background:#f5d59b}.finger-colors [data-finger="2"],.homekey[data-finger="2"],.finger-legend [data-finger="2"]{background:#b7dca5}.finger-colors [data-finger="3"],.homekey[data-finger="3"],.finger-legend [data-finger="3"]{background:#a5dcd6}.finger-colors [data-finger="4"],.homekey[data-finger="4"],.finger-legend [data-finger="4"]{background:#a5c6ee}.finger-colors [data-finger="5"],.homekey[data-finger="5"],.finger-legend [data-finger="5"]{background:#b8b0e9}.finger-colors [data-finger="6"],.homekey[data-finger="6"],.finger-legend [data-finger="6"]{background:#d4b1dd}.finger-colors [data-finger="7"],.homekey[data-finger="7"],.finger-legend [data-finger="7"]{background:#e9b6cf}.key.assigned{outline:3px solid white;outline-offset:2px;transform:translateY(-3px)}.finger-legend{display:flex;gap:8px;margin-top:20px;flex-wrap:wrap}.finger-legend button{font-size:14px;color:#26314b;flex:1;white-space:nowrap;border:3px solid transparent}.finger-legend button.active{border-color:white}.posture{display:flex;justify-content:space-around;gap:15px;margin-top:18px;color:var(--muted);font-size:15px}.gallery-grid,.components-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:25px}.gallery-photo{margin:0;background:#1b2a40;border-radius:24px;overflow:hidden;position:relative;min-width:0}.gallery-photo img{display:block;width:100%;height:100%;max-height:460px;object-fit:cover}.gallery-photo figcaption{position:absolute;bottom:0;left:0;right:0;background:#111b2cbb;padding:9px 16px;font-size:11px;color:#bec8d9}.gallery-cards{display:grid;gap:13px}.gallery-cards button{text-align:left;border:1px solid #ffffff19;background:var(--panel);border-radius:19px;padding:17px 23px}.gallery-cards button.active{border-color:var(--accent)}.gallery-cards small{letter-spacing:3px;color:var(--accent);font-size:11px}.gallery-cards h2{font-size:25px;margin:6px 0}.gallery-cards p{font-size:15px;color:var(--muted);margin:0}.source-row{font-size:12px;color:var(--muted);display:flex;gap:20px;flex-wrap:wrap;margin-top:15px}.source-row a{text-decoration:underline;text-underline-offset:4px}.component-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-content:start}.component-buttons button{font-size:19px;padding:20px 5px;background:var(--panel)}.component-buttons button span{display:block;color:var(--accent);font-size:12px;margin-bottom:10px}.component-buttons button.active{background:#364763;border-color:var(--accent)}#componentInfo{grid-column:1/4;padding:23px;background:#b7d7cb;color:#223d38;border-radius:22px;min-height:260px}#componentInfo h2{font-size:32px}#componentInfo p{font-size:20px}.warning{background:#302d35}.custom-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px}.assembly-scene{height:420px;background:radial-gradient(ellipse at 50% 40%,#34486c,#17253b);border:1px solid #ffffff25;border-radius:25px;position:relative;overflow:hidden;perspective:700px}.layer{position:absolute;left:50%;transform:translateX(-50%);transition:top .7s,transform .3s;display:flex;align-items:center;justify-content:center}.cap{top:85px;width:145px;height:100px;background:#ff916e;border-radius:19px;color:#663c38;font-size:55px;font-weight:bold;box-shadow:0 22px 0 #9b6358,0 28px 35px #0006;z-index:3;border:2px solid #ffc6a8}.switch{top:138px;width:105px;height:95px;border:2px solid #ddf6ff99;background:#bdd1ff55;z-index:2;border-radius:9px;flex-direction:column;box-shadow:0 14px 0 #8493b7}.switch i{font-size:42px;font-style:normal;color:#ff9c79}.switch span{font-size:12px;color:#fff}.board{top:218px;width:230px;height:45px;transform:translateX(-50%) rotateX(28deg);background:#407574;border:2px solid #a1c1ba;border-radius:12px;box-shadow:0 12px 0 #284445;color:#c5e7dc;font-size:13px}.exploded .cap{top:25px}.exploded .switch{top:175px}.exploded .board{top:310px}.assembly-label{position:absolute;bottom:13px;left:15px;right:15px;text-align:center;color:#c9d4e6;font-size:14px}.pressing .cap{animation:press .8s}.pressing .switch{animation:press .8s}@keyframes press{0%,100%{transform:translateX(-50%) translateY(0)}40%{transform:translateX(-50%) translateY(16px)}}.custom-controls{padding:12px 0}.custom-controls h2{font-size:31px}.custom-controls p{font-size:19px;color:var(--muted)}.swatches{display:flex;gap:14px;margin:20px 0 28px}.swatches button{width:57px;height:57px;border-radius:13px;background:var(--swatch);border:3px solid #ffffff66;box-shadow:0 5px 0 #0004}.buttonline{display:flex;gap:10px;flex-wrap:wrap}.custom-controls details{background:var(--panel);border-radius:12px;padding:15px}.custom-controls details p{font-size:15px}.custom-controls summary{cursor:pointer;color:var(--purple)}.adventure-hero{height:480px;background:linear-gradient(90deg,#111b2ccf,#111b2c0b),url('assets/space.png') center/cover;border:1px solid #566788;border-radius:27px;padding:45px}.adventure-hero h2{font-size:48px;line-height:1.2;margin:25px 0}.adventure-hero p{font-size:18px;color:#d6ddf0}.adventure-hero .chip{background:#101b2b77}.launch{font-size:22px;margin-top:12px}.pagebar{display:flex;justify-content:center;align-items:center;gap:28px;margin:25px 0 0}.pagebar button{padding:10px 24px;border-radius:30px}.pagebar button:last-child{background:#f3ebdb;color:#26354b;font-weight:bold}.pagebar span{color:var(--muted);font-size:13px}#edge{position:fixed;left:0;top:36%;height:120px;width:20px;padding:0;background:#c3b0fa15;color:#b7a7d74d;border:1px solid #c3b0fa33;border-radius:0 10px 10px 0;z-index:20}#drawer{position:fixed;inset:0 auto 0 0;width:270px;z-index:30;background:#1c2942;padding:25px 18px;transform:translateX(-102%);transition:transform .2s;box-shadow:10px 0 35px #0005}#drawer.open{transform:translateX(0)}#drawer header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}#drawer header button{border:0;font-size:24px;background:none}#drawer nav{display:flex;flex-direction:column;gap:8px}#drawer nav button{text-align:left;border:0;background:none;padding:15px}#drawer nav small{font-size:11px;margin-right:16px;opacity:.5}#drawer nav button[aria-current=true]{background:var(--accent);color:#192439;font-weight:bold}dialog{max-width:95vw;border:1px solid #888;border-radius:20px;background:#101b2b;color:white;padding:15px}dialog img{display:block;max-width:85vw;max-height:80vh}dialog>button{float:right;margin-bottom:10px}dialog::backdrop{background:#000b}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(max-width:1000px){.brand small{display:none}.keyboard-wrap{padding:12px}.keyboard{gap:8px}.keyrow{gap:4px}.key{height:33px;font-size:10px}.kbgroup{padding:3px}.home-layout{grid-template-columns:1.6fr 1fr}.home-layout>div{padding:20px}.homekey{font-size:26px;height:68px}.finger-pairs p{font-size:12px}.finger-pairs strong{font-size:21px;letter-spacing:2px}.finger-legend button{font-size:12px;padding:10px 6px}.gallery-photo img{max-height:480px}.infobar{font-size:16px}.infobar b{font-size:19px}}@media(max-width:700px){.top{height:auto;padding:12px 18px;flex-wrap:wrap;gap:10px}.brand{font-size:17px}.top>div:last-child{margin-left:auto}main{width:91%;padding-top:20px}.heading{align-items:flex-start;gap:10px}h1{font-size:29px}.heading>.chip{display:none}.heading>.primary{padding:10px;font-size:12px;white-space:nowrap}.zone-tabs{flex-wrap:wrap;gap:7px}.zone-tabs button{flex:1 1 45%;font-size:13px;padding:8px}.keyboard-wrap{overflow-x:auto;padding:12px}.keyboard-wrap>.keyboard{min-width:750px}.infobar{flex-direction:column;align-items:flex-start;gap:8px;padding:18px;font-size:16px}.infobar b{font-size:20px}.two,.home-layout,.gallery-grid,.components-grid,.custom-grid{grid-template-columns:1fr}.paper-window textarea{min-height:230px}.homekeys{gap:5px}.homekey{height:60px;font-size:20px}.home-layout>div{padding:16px}.finger-pairs{gap:8px}.finger-pairs p{font-size:11px}.finger-pairs strong{font-size:17px}.space-key{font-size:14px;padding:12px}.compact-kb{overflow:auto;padding:15px}.compact-kb .main{min-width:650px}.posture{flex-direction:column;font-size:14px;gap:7px}.capture{font-size:16px;padding:15px}.gallery-photo img{max-height:350px}.gallery-cards h2{font-size:23px}.source-row{font-size:11px;gap:12px}.assembly-scene{height:420px}.adventure-hero{height:480px;padding:27px;background-position:55% center}.adventure-hero h2{font-size:39px}.pagebar{gap:18px}.pagebar button{padding:10px 18px}#componentInfo{min-height:200px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.homekey{min-width:0;padding:0}.home-layout>div{min-width:0}
/* Classroom revision: bold regions, full keyboard, editable input focus. */
#fullKeyboard.zone-selected .kbgroup:not(.chosen){opacity:.24;filter:saturate(.2)}
#fullKeyboard .chosen{background:#ff9c7940;border:3px solid #ffc49e;box-shadow:0 0 0 5px #ff9c791a,0 0 35px #ff9c7940;transform:translateY(-3px)}
#fullKeyboard .chosen .key{background:#ffbd87;color:#142238;font-weight:900;box-shadow:0 5px 0 #9e5c42;font-size:clamp(12px,1.2vw,19px)}
#fullKeyboard .chosen.navigation .key{font-size:12px}
#zoneInfo{border-left:8px solid var(--accent);min-height:108px}#zoneInfo>b{font-size:30px}#zoneInfo span{font-size:23px;color:#f4f0e5}#zoneInfo strong{color:#ffbd87;font-size:1.1em;font-weight:900}
#commonKeyboard .key{opacity:.48}#commonKeyboard .common-key{opacity:1;background:#ffd1a5;box-shadow:0 5px 0 #a86246,0 0 0 2px #ff9c7960;flex-direction:column;font-weight:800;font-size:15px}#commonKeyboard .common-key small{font:10px 'Microsoft YaHei',sans-serif;margin-top:2px}#commonKeyboard .picked{background:#a6dccb;outline:3px solid white;outline-offset:3px}#commonKeyboard [data-code=Backspace]{font-size:25px;line-height:20px}
.notes-layout{display:grid;grid-template-columns:1fr 1.65fr;gap:20px;margin-top:20px}.key-detail{padding:20px 25px;background:#233750;border-radius:20px}.key-detail h2{font-size:29px;color:#ffb08b}.key-detail p{font-size:21px;margin:8px 0}.key-detail strong{color:#ffdfb3}.try-it{font-size:17px;background:#101b2b6b;padding:14px;border-radius:12px;line-height:1.7}.notes-layout .paper-window textarea{min-height:125px;line-height:32px;font-size:24px;background:repeating-linear-gradient(#faf8f1 0 31px,#e2dfd7 31px 32px);padding:12px 22px}.notes-layout .window-top,.notes-layout .paper-bottom{padding:10px 20px}.notes-layout+.infobar{display:none}
.new-home{grid-template-columns:1.85fr 1fr}.new-home .hand-panel{padding:0;overflow:hidden;min-width:0}.hand-stage{position:relative;aspect-ratio:1.85;background:radial-gradient(ellipse at 50% 40%,#365168,#18283c);overflow:hidden}.hands{position:absolute;left:0;width:100%;top:6%;transform:translateY(100px);opacity:.32;transition:transform 1.7s ease-in-out,opacity 1.7s;pointer-events:none}.landed .hands{transform:translateY(0);opacity:.87}.hand-guide{position:absolute;left:8%;right:8%;bottom:17%;background:#e4e2d726;color:#e3edec;letter-spacing:10px;padding:12px;text-align:center;border-radius:10px;font-size:22px}.hand-stage .homekeys{position:absolute;inset:0;display:block;margin:0;pointer-events:none}.hand-stage .homekey{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:7.5%;height:15%;font-size:clamp(20px,3vw,38px);border:2px solid #ffffff9c;pointer-events:auto;box-shadow:0 5px 0 #1119}.hand-stage .homekey.pressed{transform:translate(-50%,-50%) scale(1.18);outline:4px solid white;z-index:2}.thumb-label{position:absolute;bottom:6%;left:35%;right:35%;text-align:center;color:#fff;background:#101b2bd9;padding:8px;border-radius:10px;font-size:15px}.fact ol{padding-left:22px;line-height:1.9;font-size:19px}.fact p{margin:10px 0}.hand-status{border-top:1px solid #655b8b44;padding-top:12px}
.input-feedback{display:flex;align-items:stretch;gap:12px;margin-top:18px;flex-wrap:wrap}.input-feedback>.capture{flex:1;margin:0;min-width:240px}.practice-input{background:#142a38;border:2px solid #89cbbb;color:#e6fff5;border-radius:13px;padding:14px 18px;width:270px;min-height:55px}.practice-input::placeholder{color:#b4d7cf;font-size:14px}.practice-input:focus{background:#23484b;outline-color:#a6dccb}
#fingerKeyboard.has-assignment .key:not(.assigned){opacity:.2;filter:grayscale(.8)}#fingerKeyboard .key.assigned{outline:3px solid #fff;outline-offset:2px;transform:translateY(-4px);box-shadow:0 8px 0 #51667d,0 0 24px #ffffff44;font-weight:900;font-size:23px;z-index:2}#fingerKeyboard .key.last-pressed{background:#fff!important;color:#182136!important;outline:5px solid #ff9c79;outline-offset:2px;transform:translateY(-5px) scale(1.12);z-index:3}
.finger-spotlight{display:flex;align-items:center;gap:20px;background:#ffd1a5;color:#14243c;border-radius:16px;padding:12px 22px;min-width:320px}.finger-spotlight kbd{background:#fff5e6;font:900 37px Arial;padding:6px 16px;min-width:66px;text-align:center;border-radius:9px;box-shadow:0 4px 0 #bc9167}.finger-spotlight small{display:block;font-size:12px;margin-bottom:4px}.finger-spotlight strong{display:block;font-size:27px}.finger-spotlight.pop{animation:spot .2s ease-out}@keyframes spot{from{transform:scale(.96)}to{transform:scale(1)}}
@media(max-width:900px){.new-home{grid-template-columns:1.6fr 1fr}.fact{padding:18px}.fact ol{font-size:15px}.fact h2{font-size:28px}.thumb-label{font-size:11px;left:32%;right:32%}.finger-spotlight{min-width:250px}#zoneInfo span{font-size:19px}#zoneInfo>b{font-size:25px}}
@media(max-width:700px){.notes-layout,.new-home{grid-template-columns:1fr}.heading{flex-wrap:wrap}.hand-stage .homekey{font-size:23px}.hand-guide{font-size:13px;letter-spacing:3px}.practice-input{width:100%}.finger-spotlight{width:100%;min-width:0}.finger-spotlight strong{font-size:22px}#zoneInfo span{font-size:18px}}

#commonKeyboard .common-key small{font-family:'Microsoft YaHei','Noto Sans CJK SC','Noto Sans SC',sans-serif}
#fullKeyboard .chosen [data-code=CapsLock]{font-size:14px}