@import "https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700&display=swap";
:root{--ink:#263a33;--muted:#7b8880;--green:#365e46;--pale:#edf3ea;--line:#e3e9df;--paper:#fbfcf8;--gold:#bb873c;color:var(--ink);font-synthesis:none;background:#f3f5ee;font-family:Noto Sans TC,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;background:0 0;border:0;justify-content:center;align-items:center;gap:7px;display:inline-flex}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:3px;outline:2px solid #80a36c}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}svg{flex-shrink:0}small{color:var(--muted);font-size:11px}.app{height:100dvh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);flex-direction:column;display:flex;overflow:hidden}.topbar{border-bottom:1px solid var(--line);background:#fbfcf9;flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;height:66px;padding:0 max(24px,50vw - 660px);display:flex}.brand{white-space:nowrap;align-items:center;gap:10px;font-size:20px;font-weight:700;display:flex}.brand-icon{color:#fff;background:var(--green);border-radius:11px;place-items:center;width:38px;height:38px;font:27px Songti TC,serif;display:grid}.brand small{letter-spacing:1px;font-size:10px;font-weight:400;display:block}.topbar nav{gap:5px;display:flex}.nav{height:42px;color:var(--muted);border-radius:10px;padding:0 15px;font-size:13px}.nav.active{background:var(--pale);color:var(--green);font-weight:600}.nav b{background:#e1e9da;border-radius:6px;padding:1px 5px;font-size:10px;font-weight:500}.header-right{align-items:center;gap:14px;display:flex}.connection{color:var(--muted);align-items:center;gap:6px;font-size:11px;display:flex}.connection span{text-overflow:ellipsis;white-space:nowrap;max-width:130px;overflow:hidden}.icon-button{border-radius:9px;flex-shrink:0;width:40px;height:40px}.icon-button:hover{background:var(--pale)}main{flex-direction:column;flex:1;gap:7px;width:100%;max-width:1320px;min-height:0;margin:0 auto;padding:18px 24px 20px;display:flex}.searchbar{background:#fff;border:1px solid #d9e2d2;border-radius:12px;flex-shrink:0;align-items:center;gap:12px;height:50px;padding:5px 5px 5px 16px;display:flex;box-shadow:0 2px 5px #263a3304}.searchbar>svg{color:#879581}.searchbar input{min-width:0;color:var(--ink);background:0 0;border:0;outline:none;flex:1;font-size:16px}.searchbar input::placeholder{color:#a0aaa0}.primary{background:var(--green);color:#fff;white-space:nowrap;border-radius:8px;min-height:38px;padding:0 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h2{font-size:13px;font-weight:600}.sidebar-heading>span{color:var(--muted);margin-left:auto;font-size:11px}.recent-list{scrollbar-width:thin;flex:1;min-height:0;overflow:auto}.recent{text-align:left;border-radius:10px;justify-content:flex-start;gap:10px;width:100%;margin-bottom:4px;padding:10px}.recent:hover,.recent.chosen{background:#e6eddf}.recent-glyph{background:#fff9;border:1px solid #dbe4d3;border-radius:8px;place-items:center;width:39px;height:39px;font:28px Songti TC,serif;display:grid}.recent>span:nth-child(2){flex:1;min-width:0}.recent strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:500;display:block;overflow:hidden}.recent small{margin-top:3px;font-size:10px;display:block}.recent>svg{color:#a4b29d}.sidebar-empty{color:var(--muted);padding:12px 10px;font-size:12px}.sidebar-device{text-align:left;border-top:1px solid var(--line);justify-content:flex-start;gap:9px;padding:12px 8px;font-size:11px}.sidebar-device span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.sidebar-device small{margin-top:4px;font-size:10px;display:block}.screen-panel{background:var(--paper);border:1px solid #dfe6d9;border-radius:16px;flex-direction:column;flex:1;min-width:0;min-height:0;display:flex;overflow:hidden;box-shadow:0 5px 24px #2e472008}.study-heading{border-bottom:1px solid var(--line);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;height:59px;padding:0 20px;display:flex}.study-heading>div:first-child{align-items:baseline;gap:12px;min-width:0;display:flex}.study-heading h1{letter-spacing:2px;text-overflow:ellipsis;white-space:nowrap;font-size:23px;font-weight:600;overflow:hidden}.study-heading span{white-space:nowrap;color:var(--muted);font-size:10px}.study-tools{flex-shrink:0;align-items:center;gap:6px;display:flex}.study-tools .secondary span{font-size:11px}.is-favorite,.is-favorite span{color:var(--gold)}.character-tabs{scrollbar-width:none;border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:7px;height:54px;padding:7px 20px;display:flex;overflow-x:auto}.character-tabs button{border:1px solid var(--line);background:#fff;border-radius:7px;flex-shrink:0;min-width:40px;height:36px;font:24px Songti TC,serif}.character-tabs button.selected{color:var(--green);background:var(--pale);border-color:#6e9160;box-shadow:inset 0 0 0 1px #6e9160}.character-tabs>span{white-space:nowrap;color:var(--muted);margin-left:4px;font-size:10px}.study-body{flex:1;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);min-height:0;display:grid}.visual-column{grid-template-rows:minmax(0,1fr) 46px 23px 22px;grid-template-columns:minmax(0,1fr) 94px;gap:0 10px;min-width:0;min-height:0;padding:12px 18px;display:grid}.stroke-player{display:contents}.stroke-stage{aspect-ratio:1;width:min(100%,320px,100dvh - 340px);box-shadow:inset 0 0 0 1px var(--line);background:#fff;border-radius:10px;grid-area:1/1;justify-content:center;place-self:center;align-items:center;display:flex;position:relative;overflow:hidden}.stroke-stage img{object-fit:contain;width:89%;height:89%}.stroke-stage canvas{width:100%;height:100%;position:absolute;inset:0}.fallback-glyph{font:130px Songti TC,serif}.frame-counter{color:var(--muted);background:#fff9;border-radius:3px;padding:1px 4px;font-size:10px;position:absolute;bottom:5px;right:8px}.compact-facts{flex-direction:column;grid-area:1/2;align-self:center;gap:16px;min-width:0;display:flex}.compact-facts>div{position:relative}.compact-facts small{margin-bottom:3px;font-size:10px;display:block}.compact-facts strong{font-size:23px;font-weight:500}.compact-facts em{color:var(--muted);font-size:11px;font-style:normal}.compact-reading span{overflow-wrap:anywhere;padding-right:20px;font-size:12px;line-height:1.4;display:block}.compact-reading 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small{margin-top:6px;font-size:10px;display:block}.history-note{color:var(--muted);margin-top:24px;font-size:11px;line-height:1.8}.modal-backdrop{z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#1c2c2255;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--paper);border-radius:18px;width:100%;max-width:520px;max-height:calc(100dvh - 32px);padding:23px;overflow:auto;box-shadow:0 20px 70px #1c2c222a}.modal-heading{justify-content:space-between;align-items:center;display:flex}.modal-heading h2{font-size:20px;font-weight:600}.modal-stat{background:var(--pale);border-radius:10px;align-items:center;gap:13px;margin:15px 0;padding:15px;display:flex}.modal-stat strong{font-size:14px}.modal-stat p{margin:4px 0 0;font-size:11px}.modal h3{margin-top:21px;font-size:13px}.modal p{color:var(--muted);margin-top:8px;font-size:12px;line-height:1.9}.modal p a{color:var(--green);margin:0 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minmax(0,1fr)}}@media (max-width:700px){.topbar{gap:5px;height:53px;padding:0 12px}.brand{gap:6px;font-size:16px}.brand-icon{border-radius:8px;width:30px;height:32px;font-size:24px}.brand small{display:none}.topbar nav{gap:1px}.nav{gap:4px;height:37px;padding:0 8px;font-size:11px}.nav svg{width:15px;height:15px}.nav b{display:none}.nav:last-child span{font-size:10px}.header-right{gap:0}.header-right .icon-button{width:30px}.topbar nav{margin-left:auto}main{gap:5px;padding:10px 12px 12px}.searchbar{border-radius:10px;gap:8px;height:45px;padding-left:11px}.searchbar input{font-size:16px}.searchbar .primary{height:34px;min-height:34px;padding:0 11px;font-size:12px}.searchbar .primary>svg{display:none}.status-line{height:18px;font-size:10px}.screen-panel{border-radius:13px}.study-heading{height:44px;padding:0 12px}.study-heading h1{font-size:21px}.study-heading>div:first-child{gap:7px}.study-heading>div:first-child>span{font-size:9px}.study-tools{gap:3px}.study-tools 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select{height:33px}.animation-caption{font-size:9px}.stroke-progress{max-width:290px;height:20px}.detail-pane{border-left:0;border-top:1px solid var(--line);flex:1}.definition-toolbar{height:38px;padding:0 12px}.definition-toolbar .segmented{border:0;padding:2px}.definition-toolbar .segmented button{min-height:25px}.definition-scroll{padding:12px 14px}.definition-scroll h2{margin-bottom:7px;font-size:15px}.meaning{font-size:14px;line-height:1.8}.example{margin-top:10px;padding:8px 10px;font-size:12px}.source{margin:8px 0 11px;font-size:9px}.english{padding-top:10px}.study-footer{height:23px;padding:0 12px;font-size:9px}.welcome{padding:16px}.welcome-mark{border-radius:18px;width:78px;height:78px;margin-bottom:22px;font-size:59px}.welcome h1{font-size:21px}.welcome p{font-size:12px}.welcome-suggestions{gap:7px;margin:20px 0}.welcome-suggestions button{padding:9px 11px;font-size:12px}.panel-heading{padding:14px}.panel-heading h1{font-size:17px}.panel-heading p{font-size:10px}.panel-scroll{padding:14px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.word-card{padding:13px}.word-card>span{font-size:24px}.word-card>svg{width:13px;top:14px;right:9px}.word-card>p{height:39px;font-size:11px}.panel-heading select{min-width:0;max-width:47%;padding:7px;font-size:10px}.history-summary{gap:10px;padding:13px}.history-summary p{font-size:11px}.queried-characters,.history-list{margin-top:20px}.modal{padding:18px}.modal h2{font-size:18px}.device-name-form .primary{padding:0 10px;font-size:11px}}@media (max-height:640px) and (max-width:700px){.visual-column{height:205px}.stroke-stage{width:min(100%,126px)}.welcome-mark{width:58px;height:58px;margin-bottom:12px;font-size:45px}.welcome h1{font-size:18px}.welcome p{margin-top:10px}.welcome-suggestions{margin:13px 0}.compact-facts{grid-template-columns:1fr 1fr;gap:9px 5px;display:grid}.compact-reading{grid-column:1/-1}.compact-facts strong{font-size:17px}.compact-facts small{font-size:9px}.compact-reading span{font-size:10px}.definition-scroll{padding:9px 12px}.definition-toolbar{height:34px}}@media (orientation:landscape) and (max-height:540px){.topbar{height:44px}main{padding-top:6px;padding-bottom:6px}.searchbar{height:38px}.status-line{height:16px}.study-heading{height:38px}.character-tabs{height:36px}.study-body{grid-template-columns:minmax(0,1fr) minmax(0,1fr);display:grid}.sidebar{display:none}.workspace{grid-template-columns:1fr}.visual-column{grid-template-rows:minmax(0,1fr) 32px 17px 15px;grid-template-columns:minmax(0,1fr) 76px;height:auto;padding:4px 10px}.stroke-stage{width:min(100%,100dvh - 280px)}.compact-facts{gap:3px}.compact-facts strong{font-size:16px}.compact-reading span{font-size:10px}.compact-facts small{font-size:9px}.playback-controls{gap:2px}.playback-controls button{min-width:29px;height:29px}.playback-controls .play-button{min-width:65px;padding:0 6px}.playback-controls select{max-width:56px;font-size:10px}.detail-pane{border-top:0;border-left:1px solid var(--line)}.definition-toolbar{height:34px}.definition-scroll{padding:10px 12px}.study-footer{height:22px}}@media (max-height:640px) and (max-width:700px) and (orientation:portrait){.visual-column{grid-template-rows:minmax(0,1fr) 36px 20px 0;height:185px}.animation-caption{display:none}.stroke-stage{width:min(100%,115px)}.study-heading,.character-tabs{height:40px}.status-line{height:14px}main{gap:4px}}@media (orientation:landscape) and (max-height:540px){.compact-facts{grid-template-columns:1fr 1fr;gap:4px 3px;max-height:100%;display:grid;overflow:auto}.compact-reading{grid-column:1/-1}.compact-facts strong{font-size:14px;line-height:1.2}.compact-facts small{margin:0;font-size:8px;line-height:1.2}.compact-reading span{font-size:9px;line-height:1.2}.compact-reading button{height:25px;top:0;right:-5px}}