:root{--step-active: #6366f1;--step-complete: #10b981;--step-pending: #e5e7eb;--surface-0: #ffffff;--surface-1: #f8fafc;--surface-2: #f1f5f9;--border-soft: #e5e7eb;--border-muted: #f1f5f9;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--accent: #6366f1;--accent-soft: #eef2ff;--accent-hover: #4f46e5;--success: #10b981;--success-soft: #ecfdf5;--warning: #f59e0b;--warning-soft: #fffbeb;--error: #ef4444;--error-soft: #fef2f2;--radius-xs: 6px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-pill: 9999px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 2px 8px rgba(0,0,0,.06), 0 0 0 1px rgba(0,0,0,.03);--shadow-lg: 0 8px 24px rgba(0,0,0,.08);--output-custom-main-max: 760px;--output-custom-edit-sidebar-width: 220px;--output-custom-edit-header-height: 44px;--output-custom-left-pane-min-height: calc(100dvh - var(--common-header-offset, 52px) - var(--output-custom-edit-header-height, 44px) - 1.5rem);--output-custom-tooltip-min-height: 428px}body{padding-top:var(--common-header-offset, 52px);min-height:100vh;display:flex;flex-direction:column}main{flex:1;display:flex;flex-direction:column}.main-content{padding:0;padding-top:calc(var(--common-header-offset, 52px) + var(--output-custom-edit-header-height, 44px));background:#fff;min-height:100vh}html.js-enabled .output-custom-edit-page.output-custom-edit-page--booting .main-content,html.js-enabled .output-custom-edit-page.output-custom-edit-page--booting #common-footer-mount{visibility:hidden}.edit-page-header{position:fixed;top:var(--common-header-offset, 52px);left:0;right:0;z-index:12;display:flex;align-items:stretch;justify-content:space-between;background:#fff;border-bottom:1px solid var(--border-soft);padding:0 1rem;height:var(--output-custom-edit-header-height, 44px);transition:top .3s ease}body.header-hidden .edit-page-header{top:0}.edit-page-header__left{display:flex;align-items:center;gap:.5rem;width:var(--output-custom-edit-sidebar-width, 280px);flex-shrink:0;padding-right:.5rem;border-right:0}.edit-page-header__title{font-size:13px;font-weight:700;color:var(--text-primary)}.edit-page-header__right{flex:1;display:flex;align-items:stretch;justify-content:center;padding-left:.5rem;padding-right:.75rem;min-width:0;position:relative}.edit-page-header__right .edit-pane-tabs{margin:0;height:100%;width:auto;display:flex;align-items:stretch;position:absolute;left:.5rem;top:0}.edit-page-header__right .edit-pane-tabs__track{padding:0;height:100%;width:auto;border-bottom:0;display:flex;align-items:stretch}.edit-page-header__right .edit-pane-tabs__list{height:100%;min-height:100%;align-items:stretch}.edit-page-header__right .edit-pane-tab{height:100%;border-radius:0}.edit-page-header__right .edit-pane-tabs__divider{display:none}.edit-page-header__right .edit-pane-tabs__indicator{bottom:-1px}.edit-header-cta{display:inline-flex;align-items:center;gap:4px;flex-shrink:0;padding:.375rem 1rem;background:var(--accent);color:#fff;font-size:13px;font-weight:600;border-radius:var(--radius-sm);border:1.5px solid var(--accent-hover);text-decoration:none;white-space:nowrap;transition:background .15s,opacity .15s;margin-left:auto}.edit-header-cta .material-symbols-outlined{font-size:18px}.edit-header-cta:hover{background:var(--accent-hover)}.edit-header-cta[aria-disabled=true]{opacity:.4;pointer-events:none}.output-custom-edit-page .output-custom-edit-inner{width:100%;margin:0}.upload-block-frame{border:1px solid var(--border-soft);border-radius:var(--radius-lg);background:var(--surface-0);overflow:hidden}.upload-zone{position:relative;padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--surface-0)}.upload-zone:hover{background:var(--accent-soft);box-shadow:var(--shadow-md)}.upload-zone.dragover{background:var(--accent-soft);box-shadow:var(--shadow-lg)}.upload-zone-icon{width:64px;height:64px;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;background:var(--accent-soft);border-radius:50%}.upload-zone-icon .material-symbols-outlined{font-size:28px;color:var(--accent)}.upload-zone:hover .upload-zone-icon{background:#ddd6fe}.upload-zone-content{margin-bottom:1rem}.upload-notice-list-inline{display:flex;flex-direction:column;gap:.25rem;text-align:left;font-size:13px;color:var(--text-primary);list-style:none;margin-top:1rem;padding:0}.upload-notice-list-inline strong{font-weight:600;color:var(--error)}.output-origin-split{display:grid;grid-template-columns:1fr;gap:0;align-items:start}.output-origin-panel{min-height:200px;min-width:0;background:var(--surface-0);overflow:hidden}.output-origin-panel.output-origin-right-split{border-radius:0;box-shadow:none;border-right:1px solid var(--border-soft);background:#fff}@media(min-width:768px){body.output-custom-edit-page #editMain,body.output-custom-edit-page .output-origin-panel.output-origin-left-split{min-height:calc(100dvh - var(--common-header-offset, 52px))}body.output-custom-edit-page.header-hidden #editMain,body.output-custom-edit-page.header-hidden .output-origin-panel.output-origin-left-split{min-height:100dvh}body.output-custom-edit-page .main-content,body.output-custom-edit-page #common-footer-mount{margin-left:var(--output-custom-edit-sidebar-width, 280px);width:calc(100% - var(--output-custom-edit-sidebar-width, 280px));max-width:calc(100vw - var(--output-custom-edit-sidebar-width, 280px))}body.output-custom-edit-page .output-origin-panel.output-origin-right-split{position:fixed;left:0;top:calc(var(--common-header-offset, 52px) + var(--output-custom-edit-header-height, 44px));height:calc(100dvh - var(--common-header-offset, 52px) - var(--output-custom-edit-header-height, 44px));width:var(--output-custom-edit-sidebar-width, 280px);overflow-y:auto;overscroll-behavior-y:contain;scrollbar-gutter:stable;z-index:10}body.output-custom-edit-page.header-hidden .output-origin-panel.output-origin-right-split{top:var(--output-custom-edit-header-height, 44px);height:calc(100dvh - var(--output-custom-edit-header-height, 44px))}body.output-custom-edit-page .output-origin-panel.output-origin-right-split>.output-origin-right-pane{overflow:visible}}.output-origin-panel.output-origin-left-split{border-radius:0;box-shadow:none;min-width:0;box-sizing:border-box;overflow:visible}.output-origin-left-split{display:flex;flex-direction:column;overflow:visible;min-height:0;min-width:0}.output-origin-left-pane{display:flex;flex-direction:column;border-bottom:1px solid var(--border-muted);padding:.75rem 1.25rem;overflow:visible;flex:none;min-height:0;min-width:0}body[data-active-left-pane-tab=home] .output-origin-left-pane,.output-origin-left-pane.is-non-home-tab{padding-left:0;padding-right:0}.output-origin-left-pane:last-child{border-bottom:none}.output-side-ad-rail{position:fixed;top:calc(var(--common-header-offset, 52px) + 16px);min-width:0;transition:opacity .2s ease;z-index:8}.output-side-ad-rail--left,.output-side-ad-rail--right{left:0;right:auto}.output-side-ad-rail.is-hidden{opacity:0;pointer-events:none;visibility:hidden}.output-side-ad-slot{width:100%;min-height:600px;border:0;border-radius:0;background:var(--surface-0);overflow:hidden;contain:layout paint style}.output-side-ad-slot>ins.adsbygoogle{display:block;width:100%;min-height:600px}.edit-pane-tabs{--edit-pane-tab-target-height: 24px;width:100%;flex-shrink:0;margin-bottom:.5rem}.edit-pane-tabs__track{position:relative;width:100%;border-bottom:1px solid var(--border-soft)}.edit-pane-tabs__list{display:flex;align-items:center;gap:.25rem;width:100%;min-height:var(--edit-pane-tab-target-height)}.edit-pane-tab{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:var(--edit-pane-tab-target-height);padding:0 .9rem;border:none;border-radius:var(--radius-sm) var(--radius-sm) 0 0;background:transparent;color:var(--text-muted);font-size:13px;font-weight:600;line-height:1.2;letter-spacing:.01em;cursor:pointer;white-space:nowrap;transition:color .18s ease,background-color .18s ease}.edit-pane-tab:hover{color:var(--text-primary);background:var(--surface-1)}.edit-pane-tab:focus-visible{outline:2px solid rgba(15,23,42,.35);outline-offset:1px}.edit-pane-tab.is-active{color:var(--text-primary)}.edit-pane-tabs__divider{display:none}.edit-pane-tabs__indicator{position:absolute;left:0;bottom:-1px;width:0;height:2px;border-radius:var(--radius-pill);background:#111;pointer-events:none;transition:transform .2s ease,width .2s ease;z-index:1}.parsed-header{flex-shrink:0;margin-bottom:.5rem}.quiz-render-content{flex:none;overflow-x:hidden;overflow-y:visible;min-height:0;min-width:0;width:100%}.output-tab-layout{position:relative;width:100%}.output-tab-main{width:100%;max-width:var(--output-custom-main-max, 760px);margin:0 auto}.home-layout{position:relative;width:100%}.home-main{padding:0 1rem 1rem;display:flex;flex-direction:column}.quiz-render-content,.introduce-panel,.wrong-note-panel,.custom-make-panel{width:100%;min-height:var(--output-custom-left-pane-min-height);content-visibility:auto;contain-intrinsic-size:auto var(--output-custom-left-pane-min-height)}.introduce-panel{padding:0 1rem 1rem}html.js-enabled body:not([data-active-left-pane-tab]) .introduce-panel{display:none}.introduce-panel__main{width:100%;max-width:720px;margin:0 auto}.output-tab-public-preview{border:1px solid var(--border-soft);border-radius:var(--radius-md);background:#fff;padding:1rem;box-shadow:var(--shadow-sm)}.output-tab-public-preview__title{font-size:1.125rem;font-weight:800;line-height:1.45;color:var(--text-primary);margin-bottom:.5rem}.output-tab-public-preview__desc{font-size:.9375rem;line-height:1.65;color:var(--text-secondary);margin-bottom:.75rem}.output-tab-public-preview__chips{display:flex;flex-wrap:wrap;gap:.375rem;margin-bottom:.75rem}.output-tab-public-preview__chip{display:inline-flex;align-items:center;border:1px solid var(--border-soft);border-radius:var(--radius-pill);background:var(--surface-1);color:var(--text-secondary);font-size:.75rem;font-weight:600;padding:.2rem .625rem}.output-tab-public-preview__list{display:grid;gap:.35rem;font-size:.875rem;color:var(--text-secondary);line-height:1.6;padding-left:1.1rem;list-style:disc}.output-tab-public-preview__footnote{margin-top:.625rem;font-size:.8125rem;color:var(--text-muted)}.output-login-link{color:#2563eb;text-decoration:underline;text-underline-offset:2px;font-weight:700}.output-login-link:hover{color:#1d4ed8}.output-login-link:focus-visible{outline:2px solid rgba(37,99,235,.45);outline-offset:2px;border-radius:2px}.output-introduce-cta{background:#3182f6;color:#fff}.output-introduce-cta:hover{background:#1b6de8;color:#fff}.output-origin-right-split{display:flex;flex-direction:column;overflow:hidden}.output-origin-right-pane{border-bottom:1px solid var(--border-muted);padding:.75rem .875rem;overflow:auto;flex:1}.output-origin-right-pane:last-child{border-bottom:none}.output-origin-panel.output-origin-right-split>.output-origin-right-pane:only-child{flex:1 1 auto;min-height:0}.output-origin-panel.output-origin-right-split>.output-origin-right-pane:last-child:not(:only-child){flex:0 0 30%}.output-origin-pane-title{font-size:.8rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem;letter-spacing:-.01em}.output-origin-pane-header{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.5rem}.output-origin-pane-header .output-origin-pane-title{margin-bottom:0}.content-panel{display:none}.content-panel.active{display:flex;flex-direction:column;min-height:0;flex:1}.parsed-item{padding:.625rem 0;position:relative}.parsed-item:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:var(--border-muted)}.parsed-item:last-child:after{display:none}.parsed-item.hidden{display:none}.parsed-item.selected{background:var(--accent-soft);border-radius:var(--radius-sm)}.add-problem-btn{position:absolute;bottom:-12px;left:50%;transform:translate(-50%);z-index:10;background:var(--accent);color:#fff;font-size:12px;padding:2px 12px;border-radius:var(--radius-pill);display:none;cursor:pointer;border:none;font-weight:500;box-shadow:var(--shadow-sm)}.add-problem-btn:hover{background:var(--accent-hover)}.parsed-item:hover .add-problem-btn{display:block}.editable-content{min-height:48px;padding:.625rem .75rem;border:1px solid transparent;border-radius:var(--radius-sm);position:relative;white-space:pre-wrap;line-height:1.7;font-size:14px;transition:border-color .15s,background .15s}.editable-content:hover{background:var(--surface-1)}.editable-content:focus{outline:none;border-color:var(--accent);background:var(--surface-0);box-shadow:0 0 0 3px #6366f11a}.editable-content .blank-answer{color:var(--accent);font-weight:600;background:var(--accent-soft);padding:1px 4px;border-radius:3px}.delete-tooltip{position:absolute;top:50%;right:8px;transform:translateY(-50%);display:none;cursor:pointer}.delete-tooltip svg{fill:var(--error);opacity:.6}.delete-tooltip:hover svg{fill:var(--error);opacity:1}.editable-content:hover .delete-tooltip{display:block}table.parsed-table{width:100%;border-collapse:collapse;font-size:13px}table.parsed-table th,table.parsed-table td{border:1px solid var(--border-soft);padding:.5rem .625rem;text-align:left}table.parsed-table td{white-space:pre-wrap;transition:background .15s}table.parsed-table th{background:var(--surface-2);font-weight:600;color:var(--text-primary)}table.parsed-table td:focus{outline:none;background:var(--accent-soft);box-shadow:inset 0 0 0 2px var(--accent)}table.parsed-table td.is-blank{background:#fff7ed;border-color:#fdba74}.merge-check{accent-color:var(--accent);cursor:pointer;margin-top:0}.item-check{margin-top:calc(.625rem + 2px)}.item-number{font-size:13px;font-weight:600;color:var(--accent);min-width:20px;padding-top:.625rem;line-height:1.7}.table-number{font-size:13px;font-weight:600;color:var(--success);min-width:20px;padding-top:.625rem;line-height:1.7}.category-mode-tabs{display:inline-flex;align-items:center;gap:.25rem;margin-bottom:.5rem;background:var(--surface-2);border-radius:var(--radius-sm);padding:3px}.category-mode-tab{display:inline-flex;align-items:center;justify-content:center;padding:.3rem .75rem;border:none;border-radius:var(--radius-xs);background:transparent;color:var(--text-muted);font-size:12px;font-weight:600;line-height:1.2;cursor:pointer;transition:all .15s}.category-mode-tab:hover{color:var(--text-secondary)}.category-mode-tab.is-active{background:var(--surface-0);color:var(--text-primary);box-shadow:var(--shadow-sm)}.category-chip-grid{display:flex;flex-wrap:wrap;gap:6px}.category-chip-controls{display:flex;gap:8px;margin-bottom:8px}.category-chip-input{flex:1;border:1px solid var(--border-soft);border-radius:var(--radius-sm);padding:.35rem .6rem;font-size:12px;background:var(--surface-0);color:var(--text-primary);transition:all .15s}.category-chip-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a}.category-chip{display:inline-flex;align-items:center;justify-content:center;padding:.3rem .7rem;border-radius:var(--radius-pill);border:1px solid var(--border-soft);background:var(--surface-0);color:var(--text-secondary);font-size:12px;font-weight:500;transition:all .15s;cursor:pointer}.category-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.category-chip.is-active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}.output-origin-right-pane .category-chip-grid.is-readonly .category-chip__delete{display:none}.category-chip__delete{margin-left:6px;border:none;background:transparent;color:var(--text-muted);font-size:14px;line-height:1;cursor:pointer;transition:color .15s}.category-chip__delete:hover{color:var(--error)}.category-chip-grid.is-tree{display:block;gap:0}.category-tree{display:flex;flex-direction:column;gap:2px;font-family:inherit}.category-tree-group{display:flex;flex-direction:column;gap:1px}.category-tree-group>summary{list-style:none}.category-tree-group>summary::-webkit-details-marker{display:none}.category-tree-group>summary::marker{content:""}.category-tree-item--quiz:after{content:"\e5cf";font-family:Material Symbols Outlined;font-size:16px;margin-left:auto;color:var(--text-muted);transition:transform .2s}.category-tree-group[open]>.category-tree-item--quiz:after{transform:rotate(180deg)}.category-tree-group:not([open])>.category-tree-item--quiz:before{content:"\e2c7"}.category-tree-group[open]>.category-tree-item--quiz:before{content:"\e2c8"}.category-tree-subtitle{display:none}.category-tree-subjects{display:flex;flex-direction:column;gap:1px;margin-left:1.25rem;padding-left:.75rem;border-left:1px solid var(--border-soft)}.category-tree-item{display:flex;align-items:center;gap:.375rem;padding:.35rem .5rem;border:none;border-radius:var(--radius-xs);background:transparent;color:var(--text-secondary);font-size:12.5px;font-weight:500;transition:all .12s;cursor:pointer;text-align:left}.category-tree-item:before{font-family:Material Symbols Outlined;font-size:16px;line-height:1;-webkit-font-smoothing:antialiased}.category-tree-item--quiz{font-weight:600;color:var(--text-primary)}.category-tree-item--quiz:before{content:"\e2c7";color:#f59e0b}.category-tree-item--subject{position:relative}.category-tree-item--subject:before{content:"\e873";color:var(--text-muted)}.category-tree-item-actions{display:flex;align-items:center;gap:2px;position:absolute;right:4px;top:50%;transform:translateY(-50%);opacity:0;pointer-events:none;transition:opacity .15s}.category-tree-item--subject:hover .category-tree-item-actions{opacity:1;pointer-events:auto}.category-tree-item-actions [data-action]{font-family:Material Symbols Outlined;font-size:18px;line-height:1;cursor:pointer;padding:1px;border-radius:var(--radius-xs);-webkit-font-smoothing:antialiased}.category-tree-item-actions [data-action=edit]{color:var(--text-muted)}.category-tree-item-actions [data-action=edit]:hover{color:var(--accent)}.category-tree-item-actions [data-action=delete]{color:#ef4444}.category-tree-item-actions [data-action=delete]:hover{color:#dc2626}.category-tree-item--subject.is-renaming{background:var(--surface-2)}.category-tree-item--subject.is-renaming .category-tree-item-actions{display:none}.category-tree-rename-input{flex:1;min-width:0;border:1px solid var(--accent);border-radius:var(--radius-xs);padding:.2rem .4rem;font-size:12px;color:var(--text-primary);background:var(--surface-0);outline:none}.category-tree-rename-input:focus{box-shadow:0 0 0 2px #6366f126}.category-tree-rename-ok{display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--success);cursor:pointer;padding:2px;flex-shrink:0;margin-left:2px}.category-tree-rename-ok:hover{color:#059669}.category-tree-rename-ok .material-symbols-outlined{font-size:16px}.category-tree-item--default-user-file:before{content:"\e873";color:var(--text-muted)}.category-tree-item:hover{background:var(--surface-2);color:var(--text-primary)}.category-tree-item:hover:before{opacity:.8}.category-tree-item.is-active{background:var(--accent-soft);color:var(--accent)}.category-tree-item.is-active:before{color:var(--accent)}.category-tree-empty{font-size:11px;color:var(--text-muted);padding-left:1.5rem}.category-tree-empty--link{color:var(--primary, #4a7cff);text-decoration:underline;cursor:pointer}.category-tree-item--add{color:var(--accent);font-weight:600}.category-tree-item--add:before{content:"\e145";color:var(--accent)}.category-tree-item--add:hover{background:var(--accent-soft)}.category-tree-item--subject-entry{gap:.5rem;background:var(--surface-1);border:1px solid var(--border-soft);border-radius:var(--radius-sm);cursor:default}.category-tree-item--subject-entry:hover{background:var(--surface-1);color:var(--text-secondary)}.category-tree-item--subject-entry input{flex:1;min-width:0;border:1px solid var(--border-soft);border-radius:var(--radius-xs);padding:.35rem .5rem;font-size:12px;color:var(--text-primary);background:var(--surface-0)}.category-tree-item--subject-entry input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #6366f126}.category-tree-inline-input{display:flex;align-items:center;position:relative;padding:2px .5rem}.category-tree-inline-input input{width:100%;border:1px solid var(--accent);border-radius:var(--radius-xs);padding:.3rem 3.25rem .3rem .5rem;font-size:12px;outline:none;background:var(--surface-0)}.category-tree-inline-input input:focus{box-shadow:0 0 0 2px #6366f126}.category-tree-inline-ok{display:flex;align-items:center;justify-content:center;position:absolute;right:calc(.5rem + 24px);top:50%;transform:translateY(-50%);border:none;background:transparent;color:var(--success);cursor:pointer;padding:2px;flex-shrink:0}.category-tree-inline-ok:hover{color:#059669}.category-tree-inline-ok .material-symbols-outlined{font-size:16px}.category-tree-inline-cancel{display:flex;align-items:center;justify-content:center;position:absolute;right:.5rem;top:50%;transform:translateY(-50%);border:none;background:transparent;color:var(--error);cursor:pointer;padding:2px;flex-shrink:0}.category-tree-inline-cancel:hover{color:#dc2626}.category-tree-inline-cancel .material-symbols-outlined{font-size:16px}.summary-note{font-size:12px;color:var(--text-muted);margin-bottom:8px}.summary-grid{display:grid;grid-template-columns:1fr;gap:6px}.summary-item{border:none;border-radius:var(--radius-sm);padding:.6rem .75rem;background:var(--surface-1);transition:background .15s}.summary-item:hover{background:var(--surface-2)}.summary-title{width:90%;display:block;cursor:pointer;font-size:13px;font-weight:600;color:var(--text-primary);position:relative;list-style:none}.summary-title::marker{content:""}.summary-title:after{content:"\25be";position:absolute;right:0;top:0;color:var(--text-muted);font-size:11px;transition:transform .15s}.summary-item[open] .summary-title:after{transform:rotate(180deg)}.summary-title::-webkit-details-marker{display:none}.summary-problems{margin-top:6px;font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow-x:auto}.btn-save{padding-right:.8rem}.btn-save.is-error{background:var(--error)}.btn-save.is-error:hover{background:#dc2626}.preview-modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#0f172a66;backdrop-filter:blur(4px);z-index:50}.preview-modal.hidden{display:none}.preview-modal__content{width:min(90vw,360px);border-radius:var(--radius-lg);background:var(--surface-0);padding:24px;box-shadow:var(--shadow-lg);text-align:center}.preview-modal__title{font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:6px}.preview-modal__desc{font-size:12px;color:var(--text-muted);margin-bottom:16px}.preview-modal__bar{width:100%;height:6px;background:var(--surface-2);border-radius:var(--radius-pill);overflow:hidden}.preview-modal__bar-fill{width:0%;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-hover));border-radius:var(--radius-pill)}.preview-modal__time{margin-top:10px;font-size:12px;color:var(--text-secondary);font-weight:600}.select-all-header{padding:.5rem 0;border-bottom:1px solid var(--border-muted);margin-bottom:.25rem}.select-all-label{display:inline-flex;align-items:center;gap:.5rem;font-size:13px;color:var(--text-muted);cursor:pointer}.select-all-label:hover{color:var(--text-secondary)}.skeleton-loader{display:flex;flex-direction:column;gap:.75rem;padding:1rem}.skeleton-item{position:relative;height:48px;border-radius:var(--radius-sm);background:var(--surface-2);overflow:hidden}.skeleton-item:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.45) 45%,transparent 100%);transform:translate(-100%);will-change:transform;animation:skeleton-shimmer 1.4s ease-in-out infinite}@keyframes skeleton-shimmer{to{transform:translate(100%)}}.output-seo-snapshot{border:1px solid var(--border-soft);border-radius:var(--radius-md);background:var(--surface-0)}.output-seo-snapshot--sidebar{padding:.5rem}.output-seo-snapshot--main{padding:.75rem;margin:.25rem 0 .75rem}.output-seo-snapshot__title{font-size:12px;font-weight:700;color:var(--text-secondary);margin:0 0 .375rem}.output-seo-snapshot__headline{font-size:16px;font-weight:800;color:var(--text-primary);margin:0 0 .375rem;line-height:1.35}.output-seo-snapshot__desc{font-size:13px;color:var(--text-secondary);margin:0;line-height:1.55}.output-seo-snapshot__sub{margin:.5rem 0 0;font-size:12px;color:var(--text-muted);line-height:1.55}.output-seo-snapshot__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.375rem}.output-seo-snapshot__item-link{display:flex;align-items:center;justify-content:space-between;gap:.5rem;border-radius:var(--radius-sm);border:1px solid var(--border-muted);background:var(--surface-1);padding:.45rem .55rem;text-decoration:none;transition:border-color .12s,background .12s}.output-seo-snapshot__item-link:hover{border-color:var(--accent);background:var(--accent-soft)}.output-seo-snapshot__item-label{font-size:12px;color:var(--text-secondary);line-height:1.4}.output-seo-snapshot__item-count{font-size:11px;font-weight:700;color:var(--accent);flex-shrink:0}.output-seo-snapshot__highlight{margin:.5rem 0 0;font-size:12px;color:var(--text-secondary)}.output-seo-snapshot__highlight a{color:var(--accent);font-weight:700;text-decoration:none}.output-seo-snapshot__highlight a:hover{text-decoration:underline}.output-seo-snapshot__types{margin:.4rem 0 0;font-size:12px;color:var(--text-secondary);line-height:1.55}.output-seo-snapshot__cards{list-style:none;margin:.5rem 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.output-seo-snapshot__card-link{display:flex;flex-direction:column;gap:.25rem;min-height:72px;border:1px solid var(--border-muted);border-radius:var(--radius-sm);padding:.55rem .6rem;text-decoration:none;background:var(--surface-1);transition:border-color .12s,background .12s}.output-seo-snapshot__card-link:hover{border-color:var(--accent);background:var(--accent-soft)}.output-seo-snapshot__card-title{font-size:12px;color:var(--text-primary);line-height:1.4}.output-seo-snapshot__card-count{font-size:11px;color:var(--text-secondary);line-height:1.35}.output-seo-snapshot__examples{margin-top:.625rem;padding-top:.625rem;border-top:1px solid var(--border-muted)}.output-seo-snapshot__examples-title{margin:0;font-size:13px;font-weight:700;color:var(--text-primary)}.output-seo-snapshot__examples-list{list-style:decimal;margin:.4rem 0 0 1rem;padding:0;display:flex;flex-direction:column;gap:.35rem}.output-seo-snapshot__examples-item{padding-left:.1rem}.output-seo-snapshot__examples-link{display:block;text-decoration:none;border-radius:var(--radius-xs)}.output-seo-snapshot__examples-meta{display:inline-block;margin-bottom:.1rem;font-size:11px;color:var(--accent);font-weight:700}.output-seo-snapshot__examples-text{display:block;font-size:12px;color:var(--text-secondary);line-height:1.5}.output-seo-snapshot__examples-link:hover .output-seo-snapshot__examples-text{color:var(--text-primary);text-decoration:underline;text-decoration-thickness:1px}.output-seo-snapshot__updated{margin:.5rem 0 0;font-size:11px;color:var(--text-muted)}.output-seo-snapshot__empty{font-size:12px;color:var(--text-muted);margin:0;padding:.375rem .25rem}@media(max-width:767px){.output-seo-snapshot__cards{grid-template-columns:1fr}}.toc-item{background:var(--surface-1);border:none;border-radius:var(--radius-sm);padding:.75rem 1rem;margin-bottom:.5rem}@media(max-width:640px){.upload-zone{padding:2rem 1rem}.upload-zone-icon{width:48px;height:48px}.upload-zone-icon .material-symbols-outlined{font-size:22px}.output-origin-pane-title{font-size:.75rem}.category-chip{font-size:11px;padding:.25rem .5rem}}.edit-meta{display:flex;align-items:center;gap:.625rem;margin-bottom:.75rem;padding-bottom:.75rem;border-bottom:1px solid var(--border-muted)}.edit-meta__title{font-size:14px;font-weight:700;color:var(--text-primary);line-height:1.3}.edit-meta__file{font-size:12px;color:var(--text-muted);margin-top:2px}.edit-meta__file span{font-weight:500;color:var(--text-secondary)}.home-tooltip-msg{display:flex;flex-direction:column;gap:.375rem;padding:.625rem .75rem;margin-bottom:.5rem;background:var(--accent-soft);border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:12.5px;line-height:1.7;color:var(--text-primary);animation:tooltipSlideIn .25s ease;min-height:var(--output-custom-tooltip-min-height)}.home-tooltip-msg__header{display:flex;align-items:center;justify-content:space-between}.home-tooltip-msg__actions{display:flex;align-items:center;gap:.375rem}.home-tooltip-msg__icon{font-size:18px;color:var(--accent);flex-shrink:0}.home-tooltip-msg__body{font-size:15px;font-weight:700;color:#000;white-space:pre-wrap}.home-tooltip-msg__textarea{width:100%;min-height:74px;border:1px solid var(--border-soft);border-radius:var(--radius-sm);background:#fff;padding:.5rem .625rem;resize:vertical;font-size:15px;font-weight:700;line-height:1.7;color:#000}.home-tooltip-msg__textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #6366f129}.home-tooltip-msg__edit{display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:0;flex-shrink:0;transition:color .15s}.home-tooltip-msg__edit:hover{color:var(--accent)}.home-tooltip-msg__edit .material-symbols-outlined{font-size:16px}.home-tooltip-msg__close{display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:0;flex-shrink:0;transition:color .15s}.home-tooltip-msg__close:hover{color:var(--text-primary)}.home-tooltip-msg__close .material-symbols-outlined{font-size:16px}.home-tooltip-msg.is-hidden{display:none}.home-tooltip-msg.is-collapsed,.home-tooltip-msg.is-hidden{min-height:0}.home-tooltip-msg__toggle{display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:0;flex-shrink:0;transition:color .15s}.home-tooltip-msg__toggle:hover{color:var(--text-primary)}.home-tooltip-msg__toggle .material-symbols-outlined{font-size:16px;transition:transform .2s ease}.home-tooltip-msg.is-collapsed .home-tooltip-msg__body{display:none}.home-tooltip-msg.is-collapsed .home-tooltip-msg__header:after{content:"\c774\c6a9\bc29\bc95  \bcf4\ae30(\d074\b9ad)";font-size:15px;font-weight:700;color:#000;flex:1;text-align:left;margin-left:.5rem}.home-tooltip-msg.is-collapsed .home-tooltip-msg__edit,.home-tooltip-msg.is-collapsed .home-tooltip-msg__close{display:none}.home-tooltip-msg.is-collapsed{cursor:pointer;padding:.375rem .75rem;margin-bottom:.25rem;gap:0}.home-tooltip-msg.is-collapsed .home-tooltip-msg__toggle .material-symbols-outlined{transform:rotate(180deg)}.home-tooltip-msg__reopen{display:inline-flex;align-items:center;gap:.25rem;align-self:flex-end;padding:.25rem .625rem;border:1px solid var(--border-soft);border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600;cursor:pointer;transition:background .15s,color .15s}.home-tooltip-msg__reopen .material-symbols-outlined{font-size:16px}.home-tooltip-msg__reopen:hover{background:var(--accent);color:#fff}.home-tooltip-msg__reopen.hidden{display:none}@media(max-width:767px){.home-tooltip-msg{min-height:0}}@keyframes tooltipSlideIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.mobile-sidebar-toggle{display:none;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-primary);cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent;transition:background .15s}.mobile-sidebar-toggle:active{background:var(--surface-2)}.mobile-sidebar-toggle .material-symbols-outlined{font-size:22px;transition:transform .25s cubic-bezier(.4,0,.2,1)}body.output-custom-edit-page .output-origin-panel.output-origin-right-split>.output-origin-right-pane:last-child{flex:1 1 auto;min-height:0}.mobile-sidebar-backdrop{display:none;position:fixed;top:calc(var(--common-header-offset, 52px) + var(--output-custom-edit-header-height, 44px));left:0;right:0;bottom:0;z-index:19;background:#0f172a73;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);opacity:0;transition:opacity .3s cubic-bezier(.4,0,.2,1)}@media(max-width:767px){.mobile-sidebar-toggle{display:flex}body.output-custom-edit-page .output-origin-panel.output-origin-right-split{position:fixed;top:calc(var(--common-header-offset, 52px) + var(--output-custom-edit-header-height, 44px));left:0;bottom:0;width:min(85vw,320px);height:calc(100dvh - var(--common-header-offset, 52px) - var(--output-custom-edit-header-height, 44px));z-index:20;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:none;overflow-y:auto;overscroll-behavior-y:contain;background:#fff}body.output-custom-edit-page.header-hidden .output-origin-panel.output-origin-right-split{top:var(--output-custom-edit-header-height, 44px);height:calc(100dvh - var(--output-custom-edit-header-height, 44px))}body.output-custom-edit-page.header-hidden .mobile-sidebar-backdrop{top:var(--output-custom-edit-header-height, 44px)}body.output-custom-edit-page.mobile-sidebar-open .output-origin-panel.output-origin-right-split{transform:translate(0);box-shadow:4px 0 24px #0000001f}body.output-custom-edit-page.mobile-sidebar-open .mobile-sidebar-backdrop{display:block;opacity:1}body.output-custom-edit-page.mobile-sidebar-open{overflow:hidden}body.output-custom-edit-page.mobile-sidebar-open .mobile-sidebar-toggle .material-symbols-outlined{transform:rotate(90deg)}.edit-page-header__left{width:auto;gap:.25rem}.edit-header-cta{position:fixed;bottom:0;left:0;right:0;z-index:15;width:100%;justify-content:center;border-radius:0;padding:.875rem 1rem;font-size:15px;background:var(--accent);color:#fff;border:none}.edit-header-cta:hover{background:var(--accent-hover)}}:root{--new-output-quiz-max-width: 100%;--new-output-quiz-padding: .5rem;--new-output-quiz-header-height: 44px}@media(min-width:1024px){:root{--new-output-quiz-max-width: min(92%, 900px)}}@media(min-width:1440px){:root{--new-output-quiz-max-width: 1000px}}.quiz-play-page{--text-primary: #2d2926;--text-secondary: #6b6560;--text-tertiary: #9c9590;--primary-color: #578e7e;--secondary-color: #f5f5f4;--quiz-play-root-bg: #ffffff;--quiz-color-bg-subtle: #ffffff;--quiz-color-bg-panel: #ffffff;--quiz-color-border: #e7e5e4;--quiz-color-border-strong: #d6d3d1;--quiz-color-text-primary: var(--text-primary);--quiz-color-text-secondary: var(--text-secondary);--quiz-color-text-tertiary: var(--text-tertiary);--quiz-primary-color: var(--primary-color);--quiz-primary-hover: #437063;--quiz-danger-color: #dc2626;--quiz-font-size-text-xs: 12px;--quiz-font-size-text-sm: 13px;--quiz-font-size-text-md: 14px;--quiz-font-size-text-lg: 15px;--quiz-font-size-question: .875rem;--quiz-font-size-question-mobile: 13px;--quiz-header-title-font-size: 1rem;--quiz-header-toc-font-size: 1rem;--quiz-header-text-line-height: 1.1;--quiz-header-toggle-button-size: 32px;--quiz-header-toggle-icon-size: 24px;--shadow-sm: 0 1px 2px 0 rgba(45, 41, 38, .04);margin:0;padding:0;padding-top:var(--common-header-offset, 52px);background-color:var(--quiz-play-root-bg)!important;color:var(--text-primary);overflow-x:hidden}.new-output-quiz-header{position:sticky;top:var(--common-header-offset, 52px);z-index:calc(var(--header-z-max, 2147483647) - 1);width:100%;height:var(--new-output-quiz-header-height);background:#fff;border-bottom:1px solid #e5e7eb;transition:top .3s ease;contain:layout}body.header-hidden .new-output-quiz-header{top:0}.new-output-quiz-header__inner{max-width:var(--new-output-quiz-max-width);width:100%;margin:0 auto;height:100%;padding:0 var(--new-output-quiz-padding);display:flex;align-items:center;justify-content:space-between;box-sizing:border-box}.new-output-quiz-header__title{font-size:var(--quiz-header-title-font-size);font-weight:700;line-height:var(--quiz-header-text-line-height);color:#111827}.new-output-quiz-progress{position:absolute;top:0;left:0;right:0;height:3px;background:transparent}.new-output-quiz-progress:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:var(--quiz-primary-color, #3b82f6);transform-origin:left;transform:scaleX(var(--quiz-header-progress-ratio, 0));opacity:0;transition:transform .08s linear,opacity .2s ease}body.header-hidden .new-output-quiz-progress:after{opacity:1}.new-output-quiz-rail{position:fixed;top:calc(var(--common-header-offset, 52px) + var(--new-output-quiz-header-height));bottom:0;width:calc(50% - var(--new-output-quiz-max-width) / 2);display:none;z-index:40}body.header-hidden .new-output-quiz-rail{top:var(--new-output-quiz-header-height)}.new-output-quiz-rail--left{left:0}.new-output-quiz-rail--right{right:0;padding:1rem 0}@media(min-width:1140px){.new-output-quiz-rail{display:flex;flex-direction:column;align-items:stretch}.new-output-quiz-rail--left{padding:0}#quizRailToc{flex:0 0 auto;overflow:auto}.quiz-rail-ad{width:100%;max-width:100%}.quiz-rail-ad--left{flex:1;display:flex;align-items:stretch}.quiz-rail-ad--right{flex:1;padding-top:12px;display:flex;align-items:stretch}.quiz-rail-ad>ins.adsbygoogle{display:block;width:100%;max-width:100%;flex:1;min-height:90px}}.header-toc-trigger{display:flex}.header-toc-trigger__label{font-size:var(--quiz-header-toc-font-size);font-weight:700;line-height:var(--quiz-header-text-line-height);color:#111827}#quizHeaderProgressCounter,.quiz-header-progress-counter{font-size:var(--quiz-header-toc-font-size);font-weight:700;line-height:var(--quiz-header-text-line-height);color:#111827;white-space:nowrap}#header-dropdown-toggle,#headerTocToggle{width:var(--quiz-header-toggle-button-size);height:var(--quiz-header-toggle-button-size)}#header-dropdown-toggle .material-symbols-outlined,#headerTocToggle .material-symbols-outlined{font-size:var(--quiz-header-toggle-icon-size)}.header-share-actions{display:flex;align-items:center;gap:.375rem;margin-left:.125rem}.header-share-btn{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:9999px;border:1px solid #e5e7eb;background:#fff;transition:transform .12s ease,box-shadow .18s ease,border-color .18s ease}.header-share-btn:hover{transform:translateY(-1px);border-color:#d1d5db;box-shadow:0 2px 6px #11182729}.header-share-btn:focus-visible{outline:2px solid #3b82f6;outline-offset:2px}.header-share-btn img{width:18px;height:18px;display:block;object-fit:contain}.header-share-btn--kakao{background:#fee500;border-color:#f5dd00}.header-share-btn--kakao img{width:20px;height:20px}@media(max-width:480px){.header-share-actions{gap:.25rem}.header-share-btn{width:28px;height:28px}}@media(min-width:1140px){.header-toc-trigger{display:none}}.header-toc-panel{position:absolute;top:100%;left:0;right:0;max-width:var(--new-output-quiz-max-width);margin:0 auto;background:#fff;border:1px solid #e5e7eb;border-top:none;border-radius:0 0 12px 12px;box-shadow:0 4px 12px #0000001a;z-index:50;max-height:50vh;overflow-y:auto;padding:12px}.header-toc-panel.hidden{display:none}@media(min-width:1140px){.header-toc-panel{display:none!important}}.new-output-quiz-main{position:relative;display:flex;flex-direction:column;max-width:var(--new-output-quiz-max-width);width:100%;margin:0 auto;padding:0 var(--new-output-quiz-padding);min-height:60vh;box-sizing:border-box;overflow-x:hidden}.new-output-quiz-content{flex:1}html,body{scrollbar-width:none;-ms-overflow-style:none}html::-webkit-scrollbar,body::-webkit-scrollbar{width:0;height:0}#quiz-play-root{background-color:transparent;width:100%;max-width:100%;margin:0 auto;padding-top:40px;padding-bottom:56px}#quiz-play-shell{position:relative}.quiz-top-ad{width:100%;min-height:var(--quiz-top-ad-min-height, 90px);padding-top:8px;padding-bottom:8px;box-sizing:border-box;display:flex;justify-content:center;align-items:stretch}.quiz-top-ad__container{width:100%;min-height:var(--quiz-top-ad-min-height, 90px);height:auto}.quiz-top-ad__container>ins.adsbygoogle{display:block;width:100%;max-width:100%;height:auto;min-height:var(--quiz-top-ad-min-height, 90px)}.quiz-top-ad--min-100{--quiz-top-ad-min-height: 100px}.quiz-top-ad__container--fixed-width{width:min(100%,var(--quiz-top-ad-fixed-width, 760px));max-width:var(--quiz-top-ad-fixed-width, 760px);margin:0 auto}.quiz-ad-rail{position:fixed;top:calc(var(--quiz-header-offset, var(--common-header-offset, 60px)) + 16px);width:var(--quiz-ad-rail-width, 160px);max-height:calc(100vh - var(--quiz-header-offset, var(--common-header-offset, 60px)) - 32px);z-index:900}.quiz-ad-rail--left{left:calc(50% - (var(--quiz-main-max, 1200px) / 2) - var(--quiz-ad-rail-gap, 16px) - var(--quiz-ad-rail-width, 160px))}.quiz-ad-rail--right{right:calc(50% - (var(--quiz-main-max, 1200px) / 2) - var(--quiz-ad-rail-gap, 16px) - var(--quiz-ad-rail-width, 160px))}.quiz-ad-rail:empty{display:none}@media(max-width:1359px){.quiz-ad-rail{display:none!important}}#questionsContainer:empty{min-height:50vh}#questionsContainer[data-initial-skeleton="1"]{min-height:70vh}#quizForm.hidden{display:block!important;visibility:hidden}.quiz-icon{width:1em;height:1em;display:inline-block;vertical-align:-.125em}a{color:inherit;text-decoration:none}li{list-style-type:none}.quiz-common-header-skeleton{position:fixed;top:0;left:0;right:0;height:var(--common-header-offset, 52px);box-sizing:border-box;background:#fff;border-bottom:1px solid rgba(148,163,184,.35);z-index:2147483646}.quiz-common-header-skeleton__inner{max-width:1200px;height:100%;margin:0 auto;padding:0 24px;box-sizing:border-box;display:flex;align-items:center;gap:12px}.quiz-common-header-skeleton__logo{width:32px;height:32px;flex-shrink:0}.quiz-common-header-skeleton__title{width:110px;height:14px}.quiz-common-header-skeleton__nav{margin-left:auto;display:flex;align-items:center;gap:12px}.quiz-common-header-skeleton__nav-item{width:64px;height:12px}body.quiz-play-page{--common-footer-offset: 320px;--quiz-main-max: 990px;--quiz-ad-rail-width: 160px;--quiz-ad-rail-gap: 16px}@media(min-width:1700px){:root{--quiz-ad-rail-width: 300px}}body.quiz-play-page #common-footer-mount{min-height:var(--common-footer-offset, 280px);contain:strict;content-visibility:auto;contain-intrinsic-size:auto 320px}.new-output-quiz-layout-borderline{height:8px;background:#e5e7eb}.question{margin:0!important;padding:16px!important;min-height:80px;background:#fff;content-visibility:auto;contain-intrinsic-size:auto 260px;width:100%;box-sizing:border-box;word-wrap:break-word;overflow-wrap:break-word}.question .quiz-question-text{font-size:var(--quiz-font-size-question);line-height:1.5}.question--inline-ad{padding:0!important;min-height:100px;overflow:hidden}.question-block--inline-ad{margin-bottom:-24px}.quiz-inline-ad-slot{width:100%;min-height:100px;height:auto}.quiz-inline-ad-slot>ins.adsbygoogle{display:block;width:100%;max-width:100%;min-height:100px;height:auto;margin:0!important}.question-top-border{width:100%;aspect-ratio:728 / 90;height:auto;border:1px solid var(--quiz-color-border);border-radius:4px;margin:0 0 6px;box-sizing:border-box}.question .question-actions{opacity:1;pointer-events:auto;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-left:8px;font-size:12px}.question .question-actions button{background:none;border:none;cursor:pointer}.question .question-actions button:hover{opacity:.8}.quiz-action-btn{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;font-size:12px;font-weight:500;background:none;border:none;border-radius:4px;cursor:pointer;transition:background .15s ease,color .15s ease}.quiz-action-btn:hover{background:#0000000d}.quiz-action-icon{font-size:14px;width:14px;height:14px}.quiz-action-label-short{display:none}.question>header{margin-bottom:.75rem}.question .admin-new-merge-joined-rows{margin-top:12px;border-top:1px dashed #e5e7eb;padding-top:10px}.question .admin-new-merge-joined-item{margin-top:10px;padding-top:10px;border-top:1px solid #f1f5f9}.question .admin-new-merge-joined-item:first-child{margin-top:0;padding-top:0;border-top:0}.question .admin-new-merge-joined-item>.question{margin:0!important;padding:0!important;min-height:0;background:transparent;content-visibility:visible;contain-intrinsic-size:auto}.question .discussion{display:flex;align-items:center;justify-content:flex-start;gap:8px;margin-top:12px}.question .discussion .quiz-discussion-btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;flex-shrink:0;padding:.375rem 1rem;background:#3182f6;color:#fff;font-size:13px;font-weight:600;border-radius:4px;border:1.5px solid #1f6fe0;text-decoration:none;white-space:nowrap;transition:background .15s,opacity .15s;margin-left:0;cursor:pointer}.question .discussion .quiz-discussion-btn__label{line-height:1}.question .discussion .quiz-discussion-btn__count{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:18px;padding:0 8px;border-radius:999px;background:#ffffffeb;color:#1f6fe0;font-size:12px;font-weight:700;line-height:1}.question .discussion .quiz-discussion-btn:hover{background:#1f6fe0}.question .discussion .quiz-discussion-btn[aria-disabled=true]{opacity:.4;pointer-events:none}.question .discussion .quiz-discussion-close-btn{display:none;margin-left:auto;align-items:center;justify-content:center;padding:.375rem 1rem;border:1.5px solid #d1d5db;border-radius:4px;background:#fff;color:#4b5563;font-size:13px;font-weight:600;cursor:pointer;transition:border-color .15s ease,color .15s ease,background .15s ease}.question .discussion .quiz-discussion-close-btn:hover{border-color:#9ca3af;color:#111827;background:#f9fafb}.question.question--discussion-open .discussion .quiz-discussion-close-btn{display:inline-flex}.question.question--discussion-open .discussion{padding-bottom:10px;border-bottom:1px solid #e5e7eb}.question .discussion-overlay-panel{max-height:0;overflow:hidden;margin-top:0;padding:0 14px;border:0;background:#fff;opacity:0;transform:translateY(-4px);transition:max-height .24s ease,margin-top .24s ease,padding .24s ease,opacity .2s ease,transform .24s ease}.question.question--discussion-open .discussion-overlay-panel{max-height:480px;margin-top:6px;padding:14px;opacity:1;transform:translateY(0);overflow-y:auto}.question .discussion-overlay-panel__title{margin:0;color:#111827;font-size:14px;font-weight:700}.question .discussion-overlay-panel__description{margin:8px 0 0;color:#4b5563;font-size:13px;line-height:1.5}.discussion-composer{display:flex;gap:10px;padding:12px 0;border-bottom:1px solid #e5e7eb}.discussion-composer__avatar{flex-shrink:0}.discussion-composer__avatar img{width:36px;height:36px;display:block;object-fit:cover;border-radius:50%;background:#f3f4f6}.discussion-composer__field{flex:1;min-width:0}.discussion-composer__author{display:block;font-size:.85rem;font-weight:600;color:#111827;margin-bottom:2px}.discussion-composer__textarea{display:block;width:100%;min-height:36px;max-height:160px;padding:8px 0 8px 2px;border:none;border-bottom:1px solid #d1d5db;background:transparent;font-size:16px;line-height:1.5;color:#111827;resize:none;overflow-y:hidden;transition:border-color .2s ease}.discussion-composer__textarea::placeholder{color:#9ca3af}.discussion-composer__textarea:focus,.discussion-composer__textarea:focus-visible{outline:none;box-shadow:none;border-bottom-color:#111827}.discussion-composer__actions{display:flex;justify-content:flex-end;max-height:0;overflow:hidden;opacity:0;transition:max-height .2s ease,opacity .2s ease,margin-top .2s ease}.discussion-composer__textarea:focus~.discussion-composer__actions,.discussion-composer__field:focus-within .discussion-composer__actions{max-height:40px;margin-top:8px;opacity:1}.discussion-composer__submit{padding:6px 16px;border:none;border-radius:18px;background:#111827;color:#fff;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s ease}.discussion-composer__submit:hover{background:#374151}.discussion-composer__cancel{padding:6px 16px;border:none;border-radius:18px;background:transparent;color:#6b7280;font-size:.8rem;font-weight:600;cursor:pointer;transition:color .15s ease}.discussion-composer__cancel:hover{color:#111827}.discussion-composer__actions--visible{max-height:40px;margin-top:8px;opacity:1}.discussion-reply-composer{display:flex;gap:10px;padding:12px 0;margin-top:8px}.discussion-inline-edit{margin:4px 0 6px}.discussion-inline-edit__textarea{display:block;width:100%;min-height:36px;max-height:160px;padding:8px 10px;border:1px solid #d1d5db;border-radius:8px;background:#fff;font-size:16px;line-height:1.5;color:#111827;resize:none;overflow-y:hidden}.discussion-inline-edit__textarea:focus,.discussion-inline-edit__textarea:focus-visible{outline:none;box-shadow:none;border-color:#111827}.discussion-inline-edit__actions{display:flex;justify-content:flex-end;gap:4px;margin-top:8px}.discussion-comments-list,.discussion-replies-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.discussion-thread-item{display:flex;gap:10px;padding:12px 0 0}.discussion-thread-item__avatar{flex-shrink:0}.discussion-thread-item__avatar img{width:36px;height:36px;display:block;object-fit:cover;border-radius:50%;background:#f3f4f6}.discussion-thread-item__content{flex:1;min-width:0;padding-bottom:12px;border-bottom:1px solid #e5e7eb}.discussion-thread-item__header{display:flex;align-items:center;gap:8px;margin-bottom:3px;flex-wrap:wrap}.discussion-thread-item__author{font-size:.85rem;font-weight:600;color:#111827}.discussion-thread-item__time{font-size:.75rem;color:#111}.discussion-thread-item__actions{display:flex;align-items:center;gap:8px;margin-left:auto}.discussion-comment-action{display:inline-flex;align-items:center;gap:4px;padding:0;background:transparent;border:none;font-size:.75rem;font-weight:500;color:#111827;cursor:pointer;transition:color .2s ease}.discussion-comment-action:hover{color:#6b7280}.discussion-comment-action--like:hover,.discussion-comment-action--like[aria-pressed=true]{color:#ef4444}.discussion-comment-action--report:hover{color:#dc2626}.discussion-comment-action--edit:hover{color:#2563eb}.discussion-comment-action--delete:hover{color:#dc2626}.discussion-thread-item__text{margin:-2px 0 6px -2px;font-size:.85rem;line-height:1.5;color:#111}.discussion-thread-item__text-body{white-space:pre-wrap;word-break:break-word}.discussion-replies-container{margin-top:12px;padding-top:12px;padding-left:46px;border-top:1px solid #e5e7eb}.discussion-thread-item--reply>.discussion-thread-item__content{border-bottom:none;padding-bottom:0}.quiz-edit-modal,.quiz-edit-log-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:#0f172a8c;z-index:1200}.quiz-edit-modal.is-open,.quiz-edit-log-modal.is-open{display:flex}.quiz-edit-modal__backdrop,.quiz-edit-log-modal__backdrop{position:absolute;inset:0}.quiz-search-inline-panel{position:absolute;top:calc(100% + 12px);right:0;min-width:70vw;padding:12px;background:#fff;border-radius:16px;box-shadow:0 12px 40px #00000026;z-index:9999}.quiz-search-inline-panel.hidden{display:none}.quiz-search-inline-input{width:100%;padding:10px 12px;font-size:14px;border:1px solid #d1d5db;border-radius:8px;outline:none;margin-bottom:8px}.quiz-search-inline-input:focus{border-color:var(--quiz-primary-color);box-shadow:0 0 0 2px #4b7c691a}.quiz-search-inline-submit{width:100%;padding:8px 12px;font-size:14px;font-weight:500;color:#fff;background:var(--quiz-primary-color);border:none;border-radius:8px;cursor:pointer}.quiz-search-inline-submit:hover{background:var(--quiz-primary-hover)}.quiz-search-inline-status{font-size:12px;color:#6b7280;margin:8px 0}.quiz-search-inline-status.hidden{display:none}.quiz-search-inline-list{list-style:none;margin:8px 0 0;padding:0;max-height:300px;overflow-y:auto}.quiz-search-inline-list .quiz-search-item{padding:10px 12px;font-size:13px;border-radius:8px;cursor:pointer;transition:background .15s}.quiz-search-inline-list .quiz-search-item:hover{background:#f3f4f6}.quiz-search-inline-more{width:100%;padding:8px;margin-top:8px;font-size:13px;color:var(--quiz-primary-color);background:#f3f4f6;border:none;border-radius:8px;cursor:pointer}.quiz-search-inline-more.hidden{display:none}.quiz-search-inline-more:hover{background:#e5e7eb}.quiz-edit-modal__dialog{position:relative;width:min(80vw,1200px);max-height:85vh;overflow:auto;background:var(--quiz-color-bg-panel);border-radius:14px;box-shadow:0 24px 60px #44403c26;padding:20px 22px;z-index:1}.quiz-edit-modal__header{position:sticky;top:-20px;background:var(--quiz-color-bg-panel);margin:-20px -22px 0;padding:20px 22px 8px;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-edit-modal__title,.quiz-edit-log-modal__title,.quiz-search-panel__title{font-size:18px;font-weight:700;margin:0}.quiz-edit-modal__close,.quiz-edit-log-modal__close,.quiz-search-panel__close{border:none;background:transparent;color:#6b7280;cursor:pointer}.quiz-edit-modal__meta{font-size:12px;color:#6b7280;margin-bottom:12px}.quiz-edit-modal__section.hidden{display:none}.quiz-edit-modal__label{display:block;font-size:13px;font-weight:600;margin:12px 0 6px;color:#374151}.quiz-edit-modal__textarea{width:100%;border:1px solid var(--quiz-color-border);border-radius:10px;padding:10px 12px;font-size:13px;line-height:1.5;resize:vertical}.quiz-edit-modal__textarea:focus{outline:none;border-color:var(--quiz-primary-color);box-shadow:0 0 0 3px #578e7e40}.quiz-edit-modal__hint{font-size:12px;color:#9ca3af;margin-top:6px}.quiz-edit-modal__error{min-height:18px;font-size:12px;color:var(--quiz-danger-color);margin-top:8px}.quiz-edit-modal__actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}body.quiz-modal-open,body.quiz-search-open{overflow:hidden}.quiz-edit-log-modal__dialog{position:relative;width:min(90vw,720px);max-height:80vh;overflow:hidden;background:var(--quiz-color-bg-panel);border-radius:14px;box-shadow:0 24px 60px #44403c26;padding:18px 20px;z-index:1;display:flex;flex-direction:column;gap:8px}.quiz-edit-log-modal__header,.quiz-search-panel__header{display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-edit-log-modal__desc{font-size:12px;color:#6b7280;margin:0}.quiz-edit-log-modal__status{font-size:12px;color:#6b7280}.quiz-edit-log-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;overflow:auto;flex:1;min-height:0}.quiz-edit-log-item{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;border:1px solid var(--quiz-color-border);border-radius:10px;background:#fff;padding:10px 12px;font-size:12px;color:#1f2937}.quiz-edit-log-item__main{display:flex;flex-direction:column;gap:4px}.quiz-edit-log-item__side{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}.quiz-edit-log-item__title{font-weight:600;color:#111827}.quiz-edit-log-item__time{white-space:nowrap;color:#6b7280;font-size:11px}.quiz-edit-log-item__action{border:1px solid #e5e7eb;background:#fff;color:#111827;border-radius:8px;padding:4px 8px;font-size:11px;font-weight:600;cursor:pointer;transition:color .15s ease,border-color .15s ease}.quiz-edit-log-item__action:hover{color:#047857;border-color:#10b981}.quiz-edit-log-item__action.is-loading,.quiz-edit-log-item__action:disabled{opacity:.6;cursor:not-allowed}.edit-history-inline{margin-top:16px}.edit-history-divider{height:1px;background:linear-gradient(90deg,transparent,var(--quiz-color-border) 20%,var(--quiz-color-border) 80%,transparent);margin-bottom:16px;position:relative}.edit-history-divider:after{content:"\d3b8\c9d1\ae30\b85d";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;padding:0 12px;font-size:14px;font-weight:700;color:#000}.edit-history-helper{margin:-6px auto 14px;width:fit-content;max-width:100%;font-size:12px;color:var(--quiz-color-text-muted);text-align:left;white-space:pre-line}.edit-history-sets{display:flex;flex-direction:column;gap:12px}.edit-history-set{border:1px solid var(--quiz-color-border-strong);border-radius:12px;background:#fff;padding:16px}.edit-history-set-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.edit-history-set-label{font-size:13px;font-weight:700;color:#000}.edit-history-set-time{font-size:11px;color:var(--quiz-color-text-muted);margin-left:auto}.edit-history-revert-btn{font-size:12px;font-weight:500;color:#e11d48;background:none;border:none;cursor:pointer;padding:0;margin-left:8px}.edit-history-revert-btn:hover{color:#be123c}.edit-history-set-content{font-size:14px;line-height:1.7;color:var(--quiz-color-text);white-space:pre-line}.edit-diff-removed{background:#fee2e2;color:#991b1b;text-decoration:line-through;padding:1px 4px;border-radius:3px}.edit-diff-added{background:#dcfce7;color:#166534;padding:1px 4px;border-radius:3px}.edit-diff-legend{display:flex;gap:12px;margin-top:10px;font-size:11px}.edit-diff-legend-item{display:flex;align-items:center;gap:4px}.edit-history-diff{margin-top:10px;border:1px solid var(--quiz-color-border);border-radius:10px;overflow:hidden;background:#f9fafb;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px;line-height:1.6}.edit-history-diff-line{display:flex;gap:10px;padding:4px 10px;white-space:pre-wrap;word-break:break-word}.edit-history-diff-prefix{flex:0 0 14px;font-weight:700;opacity:.75}.edit-history-diff-text{flex:1;min-width:0}.edit-history-diff-line--add{background:#ecfdf5;color:#065f46}.edit-history-diff-line--del{background:#fef2f2;color:#991b1b}.edit-history-diff-line--ctx{background:transparent;color:#374151}.edit-history-diff-inline{background:#facc1573;border-radius:3px;padding:0 2px}.edit-history-diff-split{margin-top:10px;border:1px solid var(--quiz-color-border);border-radius:12px;overflow:hidden;background:#fff}.edit-history-diff-split-header{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#f9fafb;color:#111827;font-size:12px;font-weight:700}.edit-history-diff-split-header>div{padding:8px 10px;border-bottom:1px solid var(--quiz-color-border);display:flex;align-items:center;gap:0}.edit-history-diff-split-header>div:first-child{border-right:1px solid var(--quiz-color-border)}.edit-history-diff-split-body{display:flex;flex-direction:column;max-height:360px;overflow:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px;line-height:1.6}.edit-history-diff-split-row{display:grid;grid-template-columns:1fr 1fr}.edit-history-diff-split-cell{padding:4px 10px;white-space:pre-wrap;word-break:break-word;min-height:4.8em}.edit-history-diff-split-cell:first-child{border-right:1px solid var(--quiz-color-border)}.edit-history-diff-split-row+.edit-history-diff-split-row .edit-history-diff-split-cell{border-top:1px solid rgba(229,231,235,.55)}.edit-history-diff-split-cell.is-del{background:#fef2f2}.edit-history-diff-split-cell.is-add{background:#ecfdf5}.edit-history-diff-split-cell.is-ctx{background:#fff}.edit-history-diff-split-cell.is-empty{background:#fff;opacity:.75}.quiz-action-btn.is-active{color:#4f46e5;background:#eef2ff;border-radius:4px}.quiz-action-btn[disabled]{opacity:.45;cursor:not-allowed}.quiz-action-btn[disabled]:hover{color:inherit}:root{--font-sans: var(--font-family-sans, "Pretendard Variable", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif)}body{background-color:#fff;min-height:100vh;width:100%;margin:0;overflow-x:hidden;overflow-y:auto}@media(max-width:1139px){.output-side-ad-rail{display:none}}@media(min-width:1140px){.output-side-ad-rail{display:block}}.page-shell{position:relative;min-height:calc(100vh - var(--common-header-offset, 0px));width:100%;display:flex;align-items:center;justify-content:center;padding:2rem 0;box-sizing:border-box}.bg-paper{background-color:#fdfbf7}.bg-paper\/90{background-color:#fdfbf7e6}.shadow-page-left{border-right:1px solid #e2e8f0}.editor-content{outline:none;line-height:1.75rem;font-size:.875rem;color:#334155}.editor-content p,#input-area{margin-bottom:0;margin-top:0}#input-area{line-height:1.75rem;font-size:.875rem;outline:none}#result-content{line-height:1.75rem;font-size:.875rem}#input-area:disabled{pointer-events:none}#input-area::placeholder{color:#000;white-space:pre-line}.review-start-hint{position:absolute;inset:0;color:#000;font-size:.875rem;line-height:1.75rem;white-space:normal;pointer-events:auto}.review-start-link{color:#dc2626;background:transparent;border:none;padding:0;font:inherit;cursor:pointer;text-decoration:underline;pointer-events:auto}.book-wrapper{perspective:1200px}.page-wrapper{position:relative;transform-style:preserve-3d;transition:transform .9s cubic-bezier(.645,.045,.355,1)}#left-page{transform-origin:100% 50%}#right-page{transform-origin:0% 50%}.page-front,.page-back{position:absolute;width:100%;height:100%;backface-visibility:hidden}.page-front{z-index:2}.page-back{transform:rotateY(180deg);z-index:1}.flip-to-next{transform:rotateY(-180deg);z-index:100!important}.flip-to-prev{transform:rotateY(180deg);z-index:100!important}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#0003;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#0006}.hidden-transition{opacity:0;pointer-events:none;transform:scale(.95)}.highlight-diff-wrong{background:transparent;color:inherit;text-decoration:none;padding:0;border-radius:0}.highlight-match{background-color:#22c55e40;color:#166534;padding:0 4px;border-radius:2px}.skeleton-line{height:1.5rem;background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6,#e5e7eb 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s infinite;border-radius:4px;margin-bottom:.75rem;width:100%}.skeleton-line.w-3\/4{width:75%}.skeleton-line.w-2\/3{width:66%}.skeleton-line.w-1\/2{width:50%}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.section-title{font-size:1.125rem;font-weight:700;color:#334155;margin-bottom:.75rem}.section-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem;width:100%}.section-title-row .section-title{margin-bottom:0}.autosave-status{display:flex;align-items:center;gap:.4rem;flex-shrink:0}.autosave-count{font-size:.75rem;color:#0f172a;font-variant-numeric:tabular-nums;letter-spacing:-.01em}.autosave-text{font-size:.75rem;color:#64748b;letter-spacing:-.01em}.autosave-dots{visibility:hidden}.autosave-text.is-saving .autosave-dots{visibility:visible}.autosave-indicator{width:.65rem;height:.65rem;border-radius:9999px;border:1px solid #94a3b8;background:#cbd5f5;box-shadow:0 0 0 3px #94a3b833;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;flex-shrink:0}.autosave-indicator.is-saving{background:#f59e0b;border-color:#d97706;box-shadow:0 0 0 3px #f59e0b33}.autosave-indicator.is-saved{background:#22c55e;border-color:#16a34a;box-shadow:0 0 0 3px #22c55e33}.overflow-x-auto::-webkit-scrollbar{display:none}.overflow-x-auto{-ms-overflow-style:none;scrollbar-width:none}.category-tree-item--quiz{position:relative;padding-right:3.25rem}.category-tree-item--quiz .category-tree-item-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.category-tree-item--quiz .category-tree-item-actions{display:flex;align-items:center;gap:2px;position:absolute;right:1.5rem;top:50%;transform:translateY(-50%);opacity:0;pointer-events:none;transition:opacity .15s}.category-tree-item--quiz:hover .category-tree-item-actions{opacity:1;pointer-events:auto}.category-tree-item--quiz .category-tree-item-actions [data-action]{font-family:Material Symbols Outlined;font-size:18px;line-height:1;cursor:pointer;padding:1px;border-radius:6px;-webkit-font-smoothing:antialiased}.category-tree-item--quiz .category-tree-item-actions [data-action=edit]{color:#94a3b8}.category-tree-item--quiz .category-tree-item-actions [data-action=edit]:hover{color:#6366f1}.category-tree-item--quiz .category-tree-item-actions [data-action=delete]{color:#ef4444}.category-tree-item--quiz .category-tree-item-actions [data-action=delete]:hover{color:#dc2626}.category-tree-item--quiz.is-renaming .category-tree-item-actions{display:none}
