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(max-width:1399px){.workspace-preview .preview-meta{display:none}.workspace-preview .preview-actions{flex-wrap:nowrap;margin-left:auto}.preview-part{min-width:150px}}@media (min-width:901px) and (max-width:1279px){.workspace-preview .preview-layout{display:none}}@media (min-width:901px) and (max-width:1099px){.workspace-preview .preview-toolbar{gap:6px;padding-inline:10px}.preview-part{min-width:120px}.preview-zoom select{padding:0 4px}.preview-zoom{gap:2px}.workspace-preview .preview-zoom .secondary-button{width:34px}}.sheet-title-note{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.5}.sheet-title-note .text-action{font-size:13px}.detail-body .sheet-next{align-self:flex-start;height:44px;padding:0 18px;font-size:14px}.leave-dialog{border:1px solid var(--line);background:var(--paper);width:min(520px,100% - 32px);max-width:none;color:var(--ink);border-radius:18px;margin:auto;padding:0;box-shadow:0 30px 80px #18364a4d}.leave-dialog::backdrop{background:#18364a73}.leave-dialog-inner{flex-direction:column;gap:12px;padding:22px;display:flex}.leave-dialog h2{font:800 22px var(--display);margin:0}.leave-dialog p{color:var(--ink-soft);margin:0;font-size:14px;line-height:1.45}.leave-link{gap:8px;display:flex}.leave-link input{border:1px solid var(--line);min-width:0;color:var(--ink);font:12px var(--font-geist-mono),monospace;background:#fff;border-radius:10px;flex:1;padding:9px 11px}.leave-link button{flex:none}.leave-hint{color:var(--ink-soft);font-size:12px}.leave-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;margin-top:4px;display:flex}@media (max-width:520px){.leave-dialog-inner{padding:18px 16px}.leave-link{flex-direction:column}.leave-actions{flex-direction:column-reverse;align-items:stretch}.leave-actions button{justify-content:center}}.kind-current{border:1px solid var(--line);width:100%;color:var(--ink);text-align:left;cursor:pointer;background:#fff;border-radius:12px;align-items:center;gap:12px;padding:11px 14px;display:flex}.kind-current:hover{border-color:var(--fach);background:var(--fach-soft)}.kind-current .kind-icon{width:26px;height:26px;color:var(--fach-ink);flex:none}.kind-current>span{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.kind-current strong{font-size:15px}.kind-current small{color:var(--ink-soft);font-size:12px}.kind-current b{color:var(--coral-dark);flex:none;font-size:13px}.section-kind-choice{flex-direction:column;align-items:flex-start;gap:14px;display:flex}.section-kind-choice .kind-picker{align-self:stretch}@media (max-width:900px){.detail-panel{scroll-margin-top:124px}}.field-group.points-field>.number-input{width:7rem}@media (max-width:900px){.workspace-bar .workspace-templates,.workspace-bar .more-menu-button{flex-direction:column;gap:1px;width:auto;min-width:54px;height:44px;padding:0 7px;font-size:10.5px;line-height:1.1}.workspace-bar .workspace-templates svg,.workspace-bar .more-menu-button svg{width:17px;height:17px}.more-menu-count{top:-6px;right:-6px}.tab-thumb{border:1px solid var(--line);pointer-events:none;background:#fff;border-radius:2px;flex:none;width:22px;height:32px;display:block;overflow:hidden}.tab-thumb .worksheet-page{box-shadow:none;zoom:.03;margin:0}.workspace .mobile-bar{grid-template-columns:44px 44px 1.1fr .75fr 1.3fr;grid-auto-flow:row;gap:6px}.workspace .mobile-bar .mobile-undo{width:44px;max-width:44px;padding:0}.workspace .mobile-bar .primary-button{grid-column:auto}}@media (max-width:400px){.workspace-bar{column-gap:6px;padding-inline:10px}.workspace-bar .workspace-templates,.workspace-bar .more-menu-button{min-width:48px;padding:0 5px}}@media (max-width:520px){.workspace .mobile-bar .mobile-pdf svg{display:none}.workspace .mobile-bar button{padding-inline:4px}}.practice-card{border:1px solid var(--line);background:#fff;border-radius:12px;gap:10px;margin-top:18px;padding:14px 16px;display:grid}.practice-card h3{font:800 16px var(--display);align-items:center;gap:8px;margin:0;display:flex}.practice-card h3 svg{width:20px;height:20px;color:var(--coral-dark)}.practice-card p{color:var(--ink-soft);margin:0;font-size:14px;line-height:1.45}.practice-link-row{flex-wrap:wrap;gap:6px;display:flex}.practice-link-row input{border:1px solid var(--line);min-width:0;color:var(--ink);background:#fbf6ec;border-radius:8px;flex:180px;padding:8px 10px;font-size:13px}.practice-link-row .secondary-button{text-decoration:none}.practice-qr-row{align-items:center;gap:12px;display:flex}.practice-qr{flex:none;width:104px;height:104px}.operation-grid button.is-active,.segmented button.is-active{border-color:var(--ink);background:var(--ink);color:#fff;box-shadow:none}.operation-grid button:not(.is-active):hover{border-color:var(--ink);color:var(--ink)}.segmented button:not(.is-active):hover{color:var(--ink);background:#fffaf1}@media (max-width:900px){.workspace .detail-back{align-items:center;min-height:44px;margin:4px 18px 0;padding:0}.workspace-legal{gap:0 4px;padding-block:4px 12px}.workspace-legal a{align-items:center;min-height:44px;padding:0 6px;font-size:13px;display:inline-flex}.workspace .detail-body .text-action,.workspace .detail-head .text-action{margin-block:-13px;padding-block:13px}.workspace .segmented button,.workspace .page-shortcuts button{min-height:44px}.workspace .detail-body .grade-filter button,.workspace .number-chips button{height:44px}.workspace .mobile-tabs button{min-height:44px}.workspace-title input{height:36px}.workspace .hint-toggle{position:relative}.workspace .hint-toggle:after{content:"";position:absolute;inset:-12px}}.lock-note{border-left:2px solid var(--coral);color:var(--ink);background:#fdf0ea;border-radius:0 8px 8px 0;margin:8px 0 0;padding:8px 11px;font-size:13px;line-height:1.45;animation:.2s ease-out toast-in}