*{box-sizing:border-box}body{margin:0;color:#293b37;background:#edf0ec;font:14px 'Microsoft YaHei',sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer;border:1px solid #d9dfd8;background:white;color:#41534d;border-radius:7px;padding:9px 12px}button:hover{border-color:#6c8c72;background:#f2f6f0}button.primary{background:#315e49;color:#fff;border-color:#315e49}header{height:85px;background:#fffefa;border-bottom:1px solid #dce1d9;display:flex;justify-content:space-between;align-items:center;padding:0 30px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700}.brand>b{background:#315e49;color:#fff;border-radius:10px;padding:8px 12px;font:28px KaiTi,serif}.brand small{display:block;font-size:11px;color:#89928a;letter-spacing:2px;font-weight:400;margin-top:5px}.actions{display:flex;align-items:center;gap:8px}.actions>span{font-size:11px;color:#8b958b;margin-right:14px}.workspace{display:grid;grid-template-columns:265px minmax(400px,1fr) 275px;min-height:calc(100vh - 85px)}aside{background:#fffefa;padding:28px 22px;border-right:1px solid #dde2da}.inspector{border-left:1px solid #dde2da;border-right:0}.eyebrow{font-size:10px;color:#8b9c8d;letter-spacing:2px}h1{font-size:23px;line-height:1.6;margin:12px 0 8px}h2{font-size:21px;margin:12px 0 24px}h3{font-size:13px;margin:0 0 16px;display:flex;justify-content:space-between}.muted{color:#8a948d;font-size:12px;line-height:1.8}section{border-top:1px solid #e8ebe3;margin-top:25px;padding-top:22px}.palette{display:grid;grid-template-columns:1fr 1fr;gap:8px}.palette button{font-size:12px;text-align:left;padding:11px 9px;background:#fafbf7}.palette i{font-style:normal;color:#66866b;margin-right:7px;font-size:18px}label{display:block;font-size:12px;color:#6a786e;margin-bottom:18px}input,select,textarea{display:block;width:100%;border:1px solid #dce2d7;border-radius:6px;background:#fff;padding:10px;margin-top:8px;color:#32463b}textarea{resize:vertical;min-height:110px;line-height:1.8}.pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tip{background:#eef3e9;border-radius:9px;padding:15px;line-height:1.8;margin-top:23px;font-size:12px;color:#587151}.tip span{display:block;color:#85917e;font-size:11px;margin-top:7px}.quiet{width:100%;margin-top:18px;background:transparent;color:#8c968b;border:0}main{overflow:auto;padding:0 24px 35px;min-width:0}.canvasbar{height:66px;display:flex;align-items:center;justify-content:space-between;font-size:12px}.canvasbar button{padding:3px 9px;background:transparent;border:0}.canvasbar #zoomlabel{margin:0 8px;font-size:11px;color:#7a857a}.live{display:inline-block;width:6px;height:6px;background:#74977a;border-radius:50%;margin-right:5px}#sheets{margin:auto;width:max-content;zoom:var(--zoom,.85)}.sheet{width:210mm;height:297mm;padding:15mm 14mm;background:#fff;box-shadow:0 5px 22px #283d2812;margin-bottom:24px;overflow:hidden;position:relative}.sheet h2{font:26px KaiTi,STKaiti,serif;text-align:center;letter-spacing:5px;margin:0 0 18px;color:#283e35}.student{font-size:12px;display:flex;justify-content:space-between;border-bottom:1px solid #d7ddcf;padding-bottom:12px;margin-bottom:20px;color:#7d897a}.block{padding:10px 0 14px;position:relative;outline:2px solid transparent;outline-offset:5px;cursor:pointer}.block.selected{outline-color:#9db098}.block.dragover{outline-color:#315e49}.blockhead{display:flex;align-items:center;gap:10px;margin-bottom:10px;color:#536a54;font-size:13px}.blockhead:before{content:'';width:3px;height:13px;background:#78916c}.blockhead small{color:#b1b8aa;font-size:10px;font-weight:400}.gridrow{display:flex;flex-wrap:nowrap}.cell{width:var(--cell);height:var(--cell);flex:none;border:1px solid var(--line);position:relative;margin-right:-1px;margin-bottom:-1px;display:flex;align-items:center;justify-content:center;font-family:KaiTi,STKaiti,'楷体',serif;font-size:calc(var(--cell) * .77);color:#313c35}.cell:before,.cell:after{content:'';position:absolute;pointer-events:none}.cell:before{left:50%;height:100%;border-left:1px dashed var(--line)}.cell:after{top:50%;width:100%;border-top:1px dashed var(--line)}.cell span{z-index:1}.cell.mi{background-image:linear-gradient(45deg,transparent 49.5%,var(--line) 50%,transparent 50.5%),linear-gradient(-45deg,transparent 49.5%,var(--line) 50%,transparent 50.5%)}.trace{color:var(--trace)}.blank{color:transparent}.textline{min-height:45px;border-bottom:1px solid #cdd6c5;padding:9px 5px;white-space:pre-wrap;line-height:1.8;font-size:18px;overflow-wrap:anywhere}.pinyinline{font:19px Georgia,serif;letter-spacing:3px;background:repeating-linear-gradient(to bottom,transparent 0,transparent 12px,#d9dfd1 13px,transparent 14px);min-height:48px;padding:10px}.pagefoot{position:absolute;bottom:9mm;left:14mm;right:14mm;display:flex;justify-content:space-between;font-size:9px;color:#b1b9a9}.footnote{text-align:center;color:#9ba396;font-size:11px;margin-top:15px}.toolbar{display:flex;gap:6px;margin:16px 0}.toolbar button{flex:1;padding:8px 5px;font-size:12px}.help{font-size:11px;color:#929d8c;line-height:1.8;margin:10px 0 20px}input[type=range]{padding:0;accent-color:#496e4b}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#294b3c;color:white;padding:12px 20px;border-radius:8px;display:none;z-index:10}.empty{color:#93a08e;text-align:center;padding:60px 10px;border:1px dashed #cbd4c2}.badge{background:#edf2e8;color:#6c8560;padding:4px 8px;border-radius:4px;font-size:11px;margin-bottom:18px;display:inline-block}@media(max-width:1150px){.workspace{grid-template-columns:230px minmax(350px,1fr)}.inspector{grid-column:1/-1}.inspector #editor{max-width:700px}.actions>span{display:none}}@media(max-width:700px){header{padding:12px;height:auto;gap:12px;flex-wrap:wrap}.actions{flex-wrap:wrap}.workspace{display:flex;flex-direction:column}aside{padding:20px}.palette{grid-template-columns:repeat(4,1fr)}main{padding:0 10px 25px}.sheet{box-shadow:none}.brand small{display:none}}@page{size:A4 portrait;margin:0}@media print{body{background:white}header,aside,.canvasbar,.footnote,#toast{display:none!important}.workspace,main{display:block;margin:0;padding:0;overflow:visible}#sheets{zoom:1!important;width:210mm}.sheet{margin:0;box-shadow:none;break-after:page;page-break-after:always}.sheet:last-child{break-after:auto;page-break-after:auto}.block{outline:none!important;cursor:default}*{-webkit-print-color-adjust:exact;print-color-adjust:exact}}

.student{flex-wrap:wrap;gap:12px 24px}.header-field{display:grid;grid-template-columns:1fr 1.2fr 25px 25px;gap:4px;align-items:center;margin-bottom:8px}.header-field input{min-width:0;margin:0;padding:8px 4px;font-size:11px}.header-field button{padding:5px 0}.field-presets{display:flex;flex-wrap:wrap;gap:4px}.field-presets button{font-size:11px;padding:5px}.switch-label{display:flex;align-items:center;justify-content:space-between;background:#eef3e9;padding:10px;border-radius:6px}.switch-label input{width:18px;height:18px;accent-color:#315e49;margin:0}.char-pinyin{font:18px Georgia,serif;color:#455b48;margin:0 0 7px;min-height:23px}.word-prompt{font:30px KaiTi,serif;margin:6px 0}.word-example{font-size:15px;color:#697b62;margin:8px 0}.wordrow{margin:5px 0 10px}.word-answers{font-size:18px;line-height:2.8;overflow-wrap:anywhere}.inspector{position:sticky;top:0;max-height:100vh;overflow:auto}@media print{.inspector{display:none}}

.preset-row{display:flex;gap:6px;margin-bottom:18px}.preset-row button{font-size:11px;padding:8px 6px;flex:1;background:#f0f5eb}.wordrow{flex-wrap:wrap;max-width:100%}

/* Keep native file inputs behind their labelled import buttons. */
[hidden]{display:none!important}