body.typing-body:has(.gv-study){background:#090b10}
.gv-study{display:flex;flex-direction:column;max-width:1080px;min-height:100dvh;margin:0 auto;padding:22px 24px 18px;box-sizing:border-box;background:#090b10;color:#f5f7fa}
.gv-study .gv-header{justify-content:center;gap:12px;margin-bottom:12px;text-align:center}
.gv-study .gv-header h1{font-size:25px;color:#f5f7fa}
.gv-study .gv-version{color:#c8ced9;font-size:13px}
.gv-study .gv-study-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;padding-bottom:12px;border-color:#343b49}
.gv-study .gv-back{justify-self:start}
.gv-study .gv-position{margin:0;color:#e4e8ef;white-space:nowrap;font-size:16px}
.gv-study .gv-tools{display:flex;gap:6px;justify-self:end}
.gv-study .gv-icon{width:36px;height:36px;flex-basis:36px;border-color:#465063;background:#151a24;color:#f5f7fa}
.gv-study .gv-icon:hover{background:#273145}.gv-study .gv-icon.selected{background:#6354ee;border-color:#8277fb}
.gv-study{--gv-content-gap:22px}
.gv-study .gv-learning{display:flex;flex-direction:column;align-items:center;gap:var(--gv-content-gap);padding:calc(var(--gv-content-gap) + 20px) 0 0;min-height:0;text-align:center}
.gv-study .gv-picture{display:flex;align-items:center;justify-content:center;width:min(100%,340px);height:auto;aspect-ratio:3/2;max-height:none;margin:0;background:#fff;overflow:hidden;border-radius:6px;flex-shrink:0}
.gv-study .gv-picture img{width:100%;height:100%;max-width:none;max-height:none;object-fit:contain;filter:saturate(1.08) contrast(1.05);image-rendering:auto}
.gv-study .gv-picture[hidden]{display:flex;visibility:hidden;pointer-events:none}
@media(max-width:700px){.gv-study .gv-study-bar .gv-tools .gv-icon{width:40px;height:40px;flex-basis:40px}}
@media(max-width:380px){.gv-study.gv-page .gv-study-bar{grid-template-columns:44px minmax(0,1fr) 44px;row-gap:8px}.gv-study .gv-study-bar .gv-back{grid-column:1;grid-row:1}.gv-study .gv-study-bar .gv-position{grid-column:2;grid-row:1;justify-self:center}.gv-study .gv-study-bar .gv-tools{grid-column:1/-1;grid-row:2}.gv-study .gv-study-bar .gv-tools .gv-icon{width:44px;height:44px;flex-basis:44px}}
.gv-study .gv-picture.gv-wide-picture{width:min(100%,440px);aspect-ratio:16/9}
@media(max-height:800px) and (min-width:701px){.gv-study .gv-picture.gv-wide-picture{width:min(100%,360px)}}
@media(max-height:730px) and (min-width:701px){.gv-study .gv-picture.gv-wide-picture{width:min(100%,352px)}}
@media(max-width:700px){.gv-study .gv-picture.gv-wide-picture{width:min(100%,300px)}}
@media(max-width:700px){.gv-study:has(.gv-parts) .gv-picture.gv-wide-picture{width:min(100%,276px)}}
.gv-study:has(#gv-keyboard:not([hidden])) .gv-picture.gv-wide-picture{width:160px}
.gv-study .gv-picture figcaption{color:#a61b31;padding:8px}
.gv-study .gv-language{display:flex;flex-direction:column;align-items:center;gap:var(--gv-content-gap);width:100%;max-width:960px;padding:0;min-width:0;text-align:center}
.gv-study .gv-english{font-size:36px;line-height:1.3;color:#fff;margin:0;font-weight:700}
.gv-study .gv-english.sentence{font-size:27px;line-height:1.4}
.gv-study .gv-english[hidden],.gv-study .gv-association[hidden]{display:none}
.gv-study .gv-chinese{font-size:22px;font-weight:600;color:#f5f7fa;line-height:1.5;margin:0}
.gv-study .gv-parts{font-size:16px;font-weight:600;color:#69b7ff;line-height:1.5;margin:0;padding:0;border:0}
.gv-study .gv-audio-status{font-size:12px;color:#d1d8e5;margin:0;line-height:18px}
.gv-study .gv-audio-status:empty{display:none}
.gv-study .gv-association{margin:0;max-width:700px}
.gv-study .gv-association p{font-size:17px;font-weight:600;color:#ffd65a;line-height:1.5;margin:0 0 7px}
.gv-study .gv-association-play{display:inline-flex;align-items:center;gap:6px;border:1px solid #59677d;border-radius:6px;background:#1b2433;color:#fff;font-size:13px;padding:5px 10px;cursor:pointer}
.gv-study .gv-association-play:hover{background:#303c50}.gv-association-play svg{width:17px;height:17px}
#gv-association-status{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.gv-study .gv-slot-mode{position:relative;background:transparent;border:0;padding:0 0 10px;margin-top:var(--gv-content-gap);color:#fff}
.gv-slot-row{display:grid;grid-template-columns:36px minmax(0,1fr) 36px;gap:12px;align-items:center;min-height:50px}
.gv-study .gv-letter-preview{display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-end;gap:8px 0;min-height:50px;margin:0;font-size:40px;font-weight:700;line-height:1.25;color:#fff;word-break:normal}
.gv-slot-word{display:inline-flex;align-items:flex-end;gap:5px;max-width:100%;flex-wrap:wrap;justify-content:center}
.gv-slot{position:relative;display:inline-flex;justify-content:center;align-items:flex-end;flex:0 0 27px;width:27px;height:50px;border-bottom:2px solid #8995aa}
.gv-study .gv-slot.current{border-bottom-color:#9186ff}
.gv-study .gv-slot.correct{color:#fff;border-bottom-color:#9fa9ba}
.gv-study .gv-slot.wrong{background:#5a1926;border-bottom-color:#ff7d91}
.gv-typed-letter{font-family:Consolas,monospace;line-height:1.25;font-weight:700;color:#fff}
.gv-slot-dot{position:absolute;bottom:4px;font-size:21px;color:#d9e0eb;line-height:1}
.gv-slot.correct .gv-slot-dot{display:none}.gv-word-gap{width:18px;flex-shrink:0}.gv-punct{color:#fff;padding:0 2px}
.gv-tip{font-size:13px;color:#ced6e4;text-align:center;margin:10px 0 0;line-height:1.5}
.gv-stats{display:flex;justify-content:center;gap:34px;margin-top:10px}
.gv-stats span{font-size:14px;min-width:72px;text-align:center;color:#e1e6ef}
.gv-stats b{display:block;font-size:27px;line-height:1.3;margin-bottom:4px;color:#fff;font-variant-numeric:tabular-nums}
.gv-result{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);margin:0}
.gv-shortcuts{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:7px 12px;margin-top:0;padding:9px 10px;border:1px solid #465063;border-radius:6px;background:#121721;color:#eef2f8;font-size:13px;line-height:1.5;flex-shrink:0}
.gv-shortcuts strong{color:#fff}.gv-shortcuts span{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.gv-shortcuts kbd{font:600 12px Consolas,monospace;border:1px solid #69788f;border-radius:3px;background:#202a3a;color:#fff;padding:1px 4px}
.gv-slot-mode .gv-capture{position:absolute;bottom:0;left:0;width:1px;height:1px;padding:0;border:0;opacity:0;pointer-events:none;font-size:16px}
.gv-mobile-input{display:none}
.gv-study .study-keyboard{max-width:460px;margin:6px auto;background:#151c28;border-color:#566176}
.gv-study .study-keyboard-hands{display:none}
.gv-study .study-key{cursor:pointer;min-height:25px;font-size:13px;background:#273145;color:#fff;border-color:#59667c;box-shadow:none}
.gv-study .study-key.is-target{background:#6354ee;color:#fff;border-color:#a79cff;box-shadow:none}
.gv-study .study-key-row{gap:4px;margin-bottom:4px}
@media(max-height:730px) and (min-width:701px){.gv-study{--gv-content-gap:16px!important}}
@media(max-height:730px) and (min-width:701px){.gv-study:has(.gv-association) .gv-language{gap:10px}}
@media(max-width:700px){.gv-study .gv-tools .gv-icon{width:44px;height:44px;flex-basis:44px}.gv-study .gv-slot-row{grid-template-columns:44px minmax(0,1fr) 44px}.gv-study .gv-slot-row .gv-icon{width:44px;height:44px;flex-basis:44px}}
.gv-study:has(#gv-keyboard:not([hidden])) .gv-picture{width:100px}
.gv-study:has(#gv-keyboard:not([hidden])) .gv-learning{padding:6px 0;gap:5px}
@media(max-height:800px) and (min-width:701px){.gv-study{padding-top:14px;padding-bottom:12px;--gv-content-gap:18px}.gv-study .gv-picture{width:300px}.gv-study .gv-english{font-size:32px}.gv-study .gv-english.sentence{font-size:25px}.gv-study .gv-letter-preview{font-size:36px;min-height:44px}.gv-slot{height:44px;width:25px;flex-basis:25px}}
@media(max-width:700px){.gv-study{padding:14px 12px 10px;--gv-content-gap:16px}.gv-study .gv-study-bar{grid-template-columns:auto auto 1fr;gap:8px;padding-bottom:8px}.gv-study .gv-tools{gap:4px}.gv-study .gv-icon{width:30px;height:30px;flex-basis:30px}.gv-study .gv-position{font-size:13px}.gv-study .gv-picture{width:min(100%,250px)}.gv-study .gv-english{font-size:28px}.gv-study .gv-english.sentence{font-size:22px}.gv-study .gv-chinese{font-size:18px}.gv-study .gv-parts{font-size:14px}.gv-study .gv-association p{font-size:15px}.gv-slot-row{grid-template-columns:28px minmax(0,1fr) 28px;gap:6px;min-height:36px}.gv-study .gv-letter-preview{font-size:28px;min-height:36px}.gv-study .gv-slot{width:18px;flex-basis:18px;height:36px}.gv-slot-word{gap:3px;row-gap:4px}.gv-word-gap{width:12px}.gv-tip{font-size:11px;margin-top:8px}.gv-stats{gap:18px;margin-top:8px}.gv-stats span{font-size:12px;min-width:44px}.gv-stats b{font-size:23px}.gv-shortcuts{font-size:11px;padding:7px 5px;gap:4px 7px}.gv-shortcuts kbd{font-size:11px;padding:1px 3px}.gv-mobile-input{display:block;margin:6px auto 0;border:1px solid #59677d;border-radius:4px;padding:3px 10px;background:#1b2433;color:#fff;font-size:12px}}