:root{color-scheme:light;--canvas:#e8ecf1;--bg:#f7f8fa;--surface:#fff;--paper:#fff;--ink:#222833;--muted:#5d6879;--faint:#7c8796;--line:#dfe4eb;--soft:#eef1f6;--accent:#245bc5;--accent-ink:#fff;--tint:#eaf0fd;--success:#276b4b;--warning:#8b5819;--warning-bg:#fff7e9;--danger:#a73240;--danger-bg:#fff0f1;--shadow:0 16px 56px #25354a16;--radius:8px;--text-size:17px;--font:-apple-system,BlinkMacSystemFont,'SF Pro Text','PingFang SC',system-ui,sans-serif;--display:-apple-system,BlinkMacSystemFont,'SF Pro Display','PingFang SC',system-ui,sans-serif;--time:180ms}
:root[data-theme=dark]{color-scheme:dark;--canvas:#101318;--bg:#1c2027;--surface:#232830;--paper:#272d36;--ink:#edf1f7;--muted:#b0bac9;--faint:#8f9bae;--line:#3d4653;--soft:#303844;--accent:#9bbcff;--accent-ink:#142b50;--tint:#2c3f60;--success:#92d6b0;--warning:#f2c882;--warning-bg:#392f22;--danger:#ffb2bb;--danger-bg:#432a31;--shadow:0 16px 56px #0005}
*{box-sizing:border-box}html,body{margin:0;height:100%;font:16px/1.6 var(--font);color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased}body{padding:20px}button,input,textarea,select{font:inherit;color:inherit}button,select,summary{cursor:pointer}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:6px 12px;border:1px solid transparent;border-radius:6px;background:transparent;font-size:13px;white-space:nowrap;transition:background var(--time),color var(--time)}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);color:var(--accent-ink);font-weight:500}button.secondary{border-color:var(--line);background:var(--surface)}button.soft{background:var(--tint);color:var(--accent)}button.danger{color:var(--danger)}button.icon-only{min-width:36px;padding:8px}button[aria-pressed=true]{background:var(--tint);color:var(--accent)}:where(button,input,textarea,select,summary,a,[tabindex]):focus-visible{outline:3px solid var(--accent);outline-offset:3px}textarea:focus-visible{outline-offset:-3px}button:active:not(:disabled){opacity:.85}input,textarea,select{background:var(--surface);border:1px solid var(--line);border-radius:6px;min-width:0}input,select{min-height:36px;padding:6px 10px;font-size:13px}textarea{display:block;width:100%;padding:12px 16px;line-height:1.7;resize:vertical;font-size:var(--text-size)}::placeholder{color:var(--muted);opacity:1}a{color:var(--accent);text-underline-offset:3px}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.025em;text-wrap:balance}h1{font-size:24px;line-height:1.4}h2{font-size:21px;line-height:1.5}h3{font-size:17px}h4{font-size:15px}.muted{color:var(--muted)}.caption,small{font-size:12px;line-height:1.5}.eyebrow{font-size:11px;letter-spacing:.04em;color:var(--muted)}.hidden,[hidden]{display:none!important}.od-icon{--od-icon-size:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}kbd{font:11px/1.5 var(--font);color:var(--muted);white-space:nowrap}svg.logo{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.app{max-width:1800px;height:calc(100dvh - 40px);min-height:580px;margin:auto;display:grid;grid-template-columns:184px minmax(0,1fr);grid-template-rows:52px minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);overflow:clip}.window-top{display:flex;align-items:center;gap:8px;padding:0 20px;background:var(--bg)}.traffic{display:flex;gap:8px}.traffic i{width:12px;height:12px;border-radius:50%;display:block;border:1px solid #0002;background:#ed6b60}.traffic i:nth-child(2){background:#f4bf50}.traffic i:nth-child(3){background:#61c454}.window-top span{font-size:11px;color:var(--muted);margin-left:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:0 24px}.topbar h1{font-size:14px;letter-spacing:0}.topbar .od-row{gap:4px}.topbar .mode-label{font-size:11px;color:var(--muted);padding:2px 8px;background:var(--bg);border-radius:4px}.sidebar{background:var(--bg);border-right:1px solid var(--line);padding:16px 12px;display:flex;flex-direction:column;min-height:0}.brand{display:flex;align-items:center;gap:12px;padding:0 12px 28px;font:600 23px/1 var(--display);letter-spacing:-.04em}.navigation{display:grid;gap:4px}.navigation button,.sidebar-foot button{justify-content:flex-start;min-height:40px;padding-inline:12px;width:100%;color:var(--muted)}.navigation button[aria-current=page]{background:var(--soft);color:var(--ink);font-weight:600}.navigation button[aria-current=page] .od-icon{color:var(--accent)}.recent-heading{padding:28px 12px 8px;font-size:11px;color:var(--muted)}.recents{display:grid;gap:4px;overflow:auto;max-height:220px}.recents button{display:flex;justify-content:flex-start;text-align:left;font-size:12px;color:var(--muted);padding:8px 12px;white-space:normal}.recents .od-icon{--od-icon-size:15px}.recents button .od-truncate{max-width:112px}.sidebar-foot{margin-top:auto;padding-top:24px}.privacy-status{display:flex;gap:8px;align-items:center;font-size:11px;color:var(--muted);padding:12px}.privacy-status .od-icon{--od-icon-size:14px}.sidebar-foot .settings-active{background:var(--soft);color:var(--ink)}.main{display:flex;flex-direction:column;min-width:0;min-height:0}.content-body{display:grid;grid-template-columns:minmax(0,1fr);flex:1;min-width:0;min-height:0}.content-body.has-assistant{grid-template-columns:minmax(0,1fr) 340px}.content-body.chat-page{grid-template-columns:minmax(0,1fr)}.workspace{display:flex;flex-direction:column;min-width:0;min-height:0}.global-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 24px;border-bottom:1px solid var(--line);min-height:60px}.global-controls label{font-size:11px;color:var(--muted)}.global-controls 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h2{font-size:27px;margin-bottom:8px}.empty-heading p{font-size:15px;color:var(--muted)}.input-wrap{border:1px solid var(--line);border-radius:8px;background:var(--surface)}.input-wrap:focus-within{border-color:var(--accent)}.input-wrap textarea{border:0;border-radius:8px;resize:none;min-height:152px;background:transparent;padding:20px;font-size:18px}.input-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 12px;border-top:1px solid var(--line)}.input-bottom span{font-size:11px;color:var(--muted)}.sample-heading{display:flex;align-items:center;justify-content:space-between;margin-top:32px;margin-bottom:8px;color:var(--muted);font-size:12px}.sample-row{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.sample-row>button{display:flex;text-align:left;justify-content:flex-start;flex:1;min-width:0;padding:0;white-space:normal;min-height:48px}.sample-row .sample-icon{display:grid;place-items:center;flex:none;width:40px;height:48px;background:var(--soft);border:1px solid var(--line);border-radius:4px;color:var(--muted)}.sample-row .sample-icon .od-icon{--od-icon-size:22px}.sample-row .od-field{gap:3px}.sample-row strong{font-weight:500;font-size:15px}.sample-row small{color:var(--muted);font-size:12px}.content-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:24px 32px 16px}.content-header h2{font-size:18px;letter-spacing:-.01em}.content-header .od-field{gap:4px}.content-header p{font-size:12px;color:var(--muted)}.content-header .od-row{gap:4px}.segmented{display:inline-flex;padding:3px;background:var(--soft);border-radius:6px;gap:4px}.segmented button{min-height:28px;padding:4px 10px;font-size:12px}.segmented button[aria-pressed=true]{background:var(--surface);box-shadow:0 1px 3px #0001;color:var(--ink)}.source-editor{padding:0 32px 20px}.source-editor label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.source-editor textarea{height:112px;min-height:64px;max-height:220px;resize:vertical;font-size:16px}.source-editor.compact textarea{height:56px;min-height:56px;resize:none;font-size:21px;padding:8px 12px}.source-summary{display:flex;align-items:flex-start;gap:16px;padding:0 32px 20px;color:var(--muted);font-size:13px}.source-summary p{flex:1;min-width:0;line-height:1.7}.source-summary button{min-height:32px;font-size:12px;flex:none}.notice{display:flex;align-items:flex-start;gap:12px;margin:0 32px 20px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px}.notice .od-icon{margin-top:3px;color:var(--warning)}.notice .od-field{flex:1;gap:4px}.notice p{color:var(--muted);font-size:12px}.notice button{min-height:32px;font-size:12px}.notice.error .od-icon{color:var(--danger)}.selection-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:8px 32px;border-block:1px solid var(--line);background:var(--bg);font-size:12px}.selection-tools .snippet{max-width:220px;color:var(--muted)}.selection-tools button{font-size:12px;min-height:32px}.reading-layout{padding:8px 32px 40px}.reading-layout.compare{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.25fr);gap:32px}.reading-label{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:20px}.reading-layout:not(.compare)>.original-reading{display:none}.reading-layout.original-only>.original-reading{display:block}.reading-layout.original-only>.translated-reading{display:none}.reading{max-width:70ch;margin:0 auto;font-size:var(--text-size);line-height:1.8;overflow-wrap:anywhere;min-width:0}.reading h1{font-size:28px;line-height:1.45;margin-bottom:24px}.reading h2{font-size:20px;line-height:1.5;margin:28px 0 12px}.reading p{margin:0 0 20px}.reading ul{margin:12px 0 24px;padding-left:24px}.reading li{padding:4px 0}.reading table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:13px;line-height:1.6;margin:24px 0}.reading th,.reading td{padding:12px 8px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left;overflow-wrap:anywhere}.reading th{font-size:12px;background:var(--bg);font-weight:600}.reading .source-credit{font-size:12px;color:var(--muted);margin-top:32px}.untranslated{border:1px dashed var(--warning);border-radius:4px;background:var(--warning-bg);padding:16px;margin:20px 0;font-size:14px}.untranslated small{display:block;color:var(--warning);margin-bottom:8px}.empty-result{max-width:600px;margin:20px auto 48px;padding:32px 24px;text-align:center;color:var(--muted);font-size:14px}.empty-result>.od-icon{--od-icon-size:32px;margin-bottom:16px}.empty-result h2{font-size:20px;color:var(--ink);margin-bottom:12px}.empty-result p{max-width:46ch;margin:auto;line-height:1.8}.empty-result 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button{font-size:13px}.dictionary{max-width:760px;padding:12px 40px 40px;margin:auto}.dictionary .word-heading{display:flex;align-items:center;gap:16px;margin-bottom:8px}.dictionary .word-heading h1{font-size:32px}.dictionary .word-heading button{font-size:12px;color:var(--accent)}.pronunciation{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:14px;margin:8px 0 20px}.word-forms{font-size:13px;color:var(--muted);margin-bottom:28px}.sense{display:grid;grid-template-columns:24px minmax(0,1fr);gap:12px;margin-bottom:28px}.sense-number{font:14px/1.8 var(--font);color:var(--faint)}.sense h3{font-size:19px;line-height:1.6;margin-bottom:8px;letter-spacing:0}.sense .pos{font-size:12px;color:var(--muted);margin-bottom:4px}.sense .example{font-size:15px;line-height:1.8;color:var(--muted)}.sense .example span{display:block;font-size:14px;margin-top:4px}.dictionary details{margin:20px 0;border-top:1px solid var(--line);padding-top:12px}.dictionary 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.image-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 32px 16px}.image-toolbar .od-row{gap:4px}.image-toolbar button{font-size:12px}.image-stage{background:var(--bg);border-block:1px solid var(--line);overflow:auto;min-height:280px;padding:24px 32px;max-height:calc(100dvh - 330px)}.image-stage.compare-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.image-stage figure{margin:0;min-width:0}.image-stage figcaption{font-size:11px;color:var(--muted);margin-bottom:12px}.image-width{width:var(--image-width,100%);min-width:220px;margin-inline:auto}.image-width img{display:block;width:100%;height:auto;box-shadow:0 2px 12px #0001}.image-note{font-size:12px;color:var(--muted);padding:16px 32px}.paper-wrap{background:var(--bg);padding:24px 32px 40px}.paper-wrap .reading{background:var(--paper);padding:36px;border:1px solid var(--line);max-width:780px;min-height:500px}.paper-wrap.compare{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:24px}.paper-wrap.compare .reading{padding:24px;font-size:16px}.paper-wrap .reading h1{font-size:25px}.paper-wrap .reading table{font-size:12px}.attachment-name{overflow-wrap:anywhere}.upload-target{border:1px dashed var(--line);border-radius:8px;padding:24px;text-align:center;background:var(--bg);margin-bottom:24px}.upload-target p{font-size:13px;color:var(--muted)}.drag-active{outline:3px dashed var(--accent);outline-offset:-8px;background:var(--tint)!important}.drag-active .workspace-scroll{background:var(--tint)}
.assistant{display:flex;flex-direction:column;min-width:0;min-height:0;border-left:1px solid var(--line);background:var(--bg)}.assistant.standalone{border-left:0;background:var(--surface);width:100%;max-width:100%;grid-column:1}.assistant-header{display:flex;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}.assistant-header h2{font-size:15px}.assistant-header small{font-size:11px;color:var(--muted)}.assistant-header .od-row{gap:4px}.messages{flex:1;overflow:auto;min-height:0;padding:24px 20px;scrollbar-width:thin}.standalone .messages{padding-inline:max(32px,calc((100% - 780px)/2))}.chat-intro{max-width:680px;margin:36px auto 0}.chat-intro h2{font-size:26px;margin-bottom:12px}.chat-intro p{font-size:15px;color:var(--muted);margin-bottom:24px}.chat-suggestions{display:flex;flex-wrap:wrap;gap:8px}.chat-suggestions button{border:1px solid var(--line);background:var(--surface);font-size:13px;white-space:normal;text-align:left;justify-content:flex-start}.message{margin:0 auto 32px;max-width:780px;overflow-wrap:anywhere}.message.user{margin-left:24px}.standalone .message.user{margin-left:auto}.message-label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;margin-bottom:8px}.message.user>.message-body{padding:12px 16px;background:var(--soft);border-radius:8px}.message-body{font-size:16px;line-height:1.85;white-space:pre-wrap}.message-body p{margin-bottom:16px}.message-refs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.message-refs button{min-height:28px;font-size:11px;background:var(--soft);white-space:normal}.message-refs img{width:44px;height:auto;max-height:64px;object-fit:contain}.message-actions{display:flex;gap:4px;flex-wrap:wrap;margin-top:8px}.message-actions button{font-size:12px;min-height:32px;padding:4px 8px}.message-error{color:var(--danger);font-size:13px;white-space:normal}.composer-container{border-top:1px solid var(--line);padding:12px 16px;background:var(--surface)}.standalone .composer-container{padding:16px max(32px,calc((100% - 780px)/2)) 20px}.composer-mode{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px}.composer-mode label{font-size:11px;color:var(--muted)}.composer-mode select{font-size:12px;min-height:32px;padding:4px 6px;border:0;background:var(--bg)}.composer-mode .od-row{gap:4px}.composer-box{border:1px solid var(--line);border-radius:8px;padding:8px}.composer-box:focus-within{border-color:var(--accent)}.composer-box>label{font-size:11px;color:var(--muted);display:block;padding:0 8px}.composer-box textarea{padding:8px;border:0;resize:none;min-height:80px;font-size:15px;background:transparent}.composer-tools{display:flex;align-items:center;gap:4px;justify-content:space-between}.composer-tools button{font-size:12px;min-height:32px}.composer-note{font-size:10px;color:var(--muted);margin-top:8px;display:flex;justify-content:space-between;gap:8px}.reference-list{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 8px}.reference{display:flex;align-items:center;gap:4px;padding:2px 4px;border:1px solid var(--line);border-radius:4px;max-width:100%;background:var(--bg)}.reference>button{font-size:11px;min-height:28px;padding:4px;max-width:210px}.reference .od-icon{--od-icon-size:14px}.page{flex:1;min-height:0;overflow:auto;padding:32px 40px}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}.page-heading h2{font-size:24px;margin-bottom:8px}.page-heading p{font-size:14px;color:var(--muted)}.search-input{width:100%;max-width:500px;margin-bottom:24px}.history-row{display:flex;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding:12px 0}.history-row>button{flex:1;display:block;text-align:left;white-space:normal;padding:8px 0}.history-row strong{display:block;font-size:16px;font-weight:500}.history-row small{display:block;font-size:12px;color:var(--muted);margin-top:4px}.terms-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:15px}.terms-table th,.terms-table td{text-align:left;padding:16px 12px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.terms-table th{font-size:12px;color:var(--muted);font-weight:500}.terms-table td:last-child{width:130px}.terms-table button{font-size:12px;min-height:32px;padding:4px 8px}.settings-section{max-width:850px;margin:32px 0}.settings-section h3{font-size:12px;color:var(--muted);margin-bottom:8px}.settings-row{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:20px 0;border-bottom:1px solid var(--line)}.settings-row .od-field{flex:1;gap:4px}.settings-row small{color:var(--muted);font-size:12px}.switch{display:flex;align-items:center;width:40px;height:24px;min-height:24px;padding:3px;background:var(--faint);border-radius:16px;flex:none}.switch:before{content:'';display:block;background:#fff;width:18px;height:18px;border-radius:50%;transition:transform var(--time)}.switch[aria-checked=true]{background:var(--accent)}.switch[aria-checked=true]:before{transform:translateX(16px)}.settings-footnote{font-size:12px;color:var(--muted);margin-top:24px;max-width:72ch}.service-tag{font-size:11px;padding:2px 8px;background:var(--soft);border-radius:4px;white-space:nowrap}.settings-links{display:flex;gap:16px;margin-top:24px}.settings-links a{font-size:13px}.view-narrow{display:none}.app-footnote{font-size:10px;color:var(--muted);display:flex;justify-content:space-between;gap:16px;max-width:1800px;margin:8px auto 0;padding-inline:4px}.popup{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:12px;width:min(600px,calc(100vw - 64px));max-height:calc(100dvh - 64px);padding:0;box-shadow:0 24px 100px #0003;overflow:auto}.popup.wide{width:min(860px,calc(100vw - 64px))}.popup::backdrop{background:#13213955}.popup-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;border-bottom:1px solid var(--line)}.popup-header h2{font-size:17px}.popup-body{padding:24px}.popup-body>p{font-size:14px;color:var(--muted);margin-bottom:16px}.popup-footer{display:flex;justify-content:flex-end;align-items:center;gap:8px;padding:12px 24px;border-top:1px solid var(--line);background:var(--bg)}.popup .form-field{display:grid;gap:8px;margin-bottom:20px}.form-field label{font-size:13px}.form-field small{font-size:12px;color:var(--muted)}.form-field textarea{min-height:140px;font-size:15px}.form-error{color:var(--danger);font-size:12px;margin-top:4px}.export-choice{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}.export-choice input{min-height:0;margin-top:6px;accent-color:var(--accent)}.export-choice span{font-size:14px}.export-choice small{display:block;margin-top:4px;color:var(--muted);font-size:12px}.export-result{background:var(--soft);padding:16px;border-radius:6px;margin-top:16px;font-size:13px;overflow-wrap:anywhere}.scenario-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.scenario-grid button{justify-content:flex-start;text-align:left;border:1px solid var(--line);padding:12px;white-space:normal;min-height:72px}.scenario-grid .od-field{gap:4px}.scenario-grid strong{font-weight:500;font-size:14px}.scenario-grid small{color:var(--muted);font-size:11px}.compare-adoption{display:grid;grid-template-columns:1fr 1fr;gap:24px}.compare-adoption p{white-space:pre-wrap;font-size:14px;line-height:1.8;max-height:280px;overflow:auto}.compare-adoption h3{font-size:12px;color:var(--muted);margin-bottom:12px}.reference-preview{font-size:15px;line-height:1.8;white-space:pre-wrap;max-height:450px;overflow:auto}.reference-preview img{display:block;max-width:100%;height:auto}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);z-index:100;padding:12px 20px;border-radius:8px;background:var(--ink);color:var(--surface);font-size:13px;box-shadow:0 4px 24px #0002;max-width:calc(100vw - 40px);pointer-events:none}.modal-feedback{font-size:12px;color:var(--success);margin-top:12px}.undo-row{display:flex;align-items:center;gap:12px;padding:8px 24px;background:var(--tint);color:var(--ink);font-size:12px;border-top:1px solid var(--line)}.undo-row button{font-size:12px;color:var(--accent);min-height:28px}.dictionary .missing{font-size:12px;color:var(--muted)}.minimum-note{display:none;padding:8px 16px;font-size:11px;background:var(--warning-bg);color:var(--warning)}
.input-wrap>label{display:block;font-size:12px;color:var(--muted);margin:16px 20px 0}.input-wrap>textarea{min-height:128px}.assistant-return{display:none}.settings-footnote a{white-space:nowrap}
@media(max-width:1439px){.assistant-return{display:inline-flex}}
@media(hover:hover){button:hover:not(:disabled){background:var(--soft);color:var(--ink)}button.primary:hover:not(:disabled){background:color-mix(in srgb,var(--accent) 88%,var(--ink));color:var(--accent-ink)}button.soft:hover:not(:disabled){background:color-mix(in srgb,var(--tint) 75%,var(--accent));color:var(--ink)}.sense:hover{background:transparent}.history-row>button:hover{background:transparent;color:var(--accent)}.switch[aria-checked=true]:hover{background:var(--accent)}}
@media(min-width:1600px){.reading-layout{padding-inline:48px}.content-header{padding-inline:48px}.source-editor,.source-summary{padding-inline:48px}.content-body.has-assistant{grid-template-columns:minmax(0,1fr) 380px}}
@media(max-width:1439px){.content-body.has-assistant{grid-template-columns:minmax(0,1fr)}.content-body.has-assistant>.workspace{display:none}.content-body.has-assistant>.assistant{border-left:0;max-width:none;background:var(--surface)}.content-body.has-assistant .messages{padding-inline:max(32px,calc((100% - 780px)/2))}.content-body.has-assistant .composer-container{padding-inline:max(32px,calc((100% - 780px)/2))}}
@media(max-width:1099px){body{padding:0}.app{height:100dvh;border:0;border-radius:0;grid-template-columns:144px minmax(0,1fr);min-height:620px}.sidebar{padding-inline:8px}.brand{font-size:21px;gap:8px;padding-inline:8px}.window-top{padding-inline:16px}.window-top>span{display:none}.navigation button,.sidebar-foot button{font-size:12px;padding-inline:8px}.recents button{padding-inline:8px;font-size:11px}.recents button .od-truncate{max-width:88px}.privacy-status{font-size:10px;padding-inline:8px}.topbar{padding-inline:20px}.global-controls{padding:8px 20px;gap:8px}.engine-group{gap:8px}.global-controls label{font-size:10px}.global-controls select{font-size:12px;max-width:144px}.language-group{gap:4px}.content-header{padding:20px 24px 12px}.reading-layout{padding:8px 24px 32px}.source-editor,.source-summary{padding-inline:24px}.notice{margin-inline:24px}.reading-layout.compare,.paper-wrap.compare{display:block}.reading-layout.compare>.original-reading,.paper-wrap.compare>.original-reading{display:none}.reading-layout.compare.original-only>.original-reading,.paper-wrap.compare.original-only>.original-reading{display:block}.reading-layout.compare.original-only>.translated-reading,.paper-wrap.compare.original-only>.translated-reading{display:none}.view-narrow{display:inline-flex}.reading h1{font-size:25px}.reading table{font-size:12px}.reading th,.reading td{padding:10px 6px}.result-footer{padding:12px 20px;gap:8px}.result-footer kbd{display:none}.image-toolbar{padding-inline:24px;gap:8px}.image-stage{padding:20px 24px;max-height:calc(100dvh - 290px)}.image-stage.compare-images{display:block}.image-stage.compare-images figure+figure{margin-top:24px}.paper-wrap{padding:20px 24px}.paper-wrap .reading{padding:28px}.dictionary{padding:8px 28px 28px}.page{padding:28px}.empty-workspace{padding:32px 28px}.app-footnote{display:none}.topbar .mode-label{display:none}.selection-tools{padding-inline:24px}.task-strip{padding-inline:20px}.chat-intro{margin-top:24px}}
@media(max-width:899px){.minimum-note{display:block}.app{grid-template-columns:128px minmax(0,1fr);min-height:620px}.topbar{flex-wrap:wrap;min-height:52px}.topbar button{font-size:12px}.topbar kbd{display:none}.global-controls{flex-wrap:wrap}.global-controls .engine-group{margin-left:auto}.navigation button{font-size:11px}.navigation .od-icon{--od-icon-size:16px}.sidebar .recents{display:none}.recent-heading{display:none}.brand{font-size:19px}.empty-workspace{padding:28px 20px}.empty-heading h2{font-size:24px}.result-footer{flex-wrap:wrap}.result-footer>.od-row{margin-left:auto}.content-header{flex-wrap:wrap}.source-summary{flex-wrap:wrap}.compare-adoption{grid-template-columns:1fr}.image-toolbar{flex-wrap:wrap}.page{padding:24px}.scenario-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
/* 2026-10 interaction revision: one focus boundary per control, no pointer-focus halo. */
:where(button,input,textarea,select,summary,a,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.global-controls select:focus:not(:focus-visible){outline:none}
.input-wrap:focus-within,.composer-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.input-wrap textarea:focus,.composer-box textarea:focus{outline:none;box-shadow:none}
.source-editor textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.input-wrap textarea{min-height:96px;font-size:17px;padding:12px 20px}
.empty-workspace{padding-top:32px}.empty-heading h2{font-size:24px}
.recents{overflow-x:hidden}.recents button{width:100%;min-width:0}.recents button .od-truncate{flex:1;min-width:0;max-width:none}.task-strip button .od-field{min-width:0}
.view-narrow{display:inline-flex}.content-header>.od-row{flex-wrap:wrap;justify-content:flex-end}.content-header h2{overflow-wrap:anywhere}
.selection-menu{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.bilingual-reading{padding:8px 32px 40px;max-width:1440px;margin:auto}
.bilingual-heading,.bilingual-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}
.bilingual-heading{font-size:12px;color:var(--muted);padding:12px 0 16px;border-bottom:1px solid var(--line);margin-bottom:24px}
.bilingual-pair{align-items:start;margin-bottom:20px}
.bilingual-pair>.reading{width:100%;margin:0;font-size:var(--text-size);min-width:0}
.bilingual-pair>.original-reading{color:var(--muted)}
.bilingual-pair .reading p,.bilingual-pair .reading ul,.bilingual-pair .reading h1,.bilingual-pair .reading h2{margin-top:0;margin-bottom:0}
.bilingual-pair .reading h1{font-size:24px}.bilingual-pair .reading h2{font-size:19px}
.pair-label{display:none;font-size:11px;color:var(--muted);margin-bottom:8px}
.bilingual-pair.table-pair{grid-template-columns:1fr;gap:20px;padding-block:16px;border-block:1px solid var(--line)}
.table-pair .pair-label{display:block}.table-pair .reading table{margin:0;font-size:13px}
.document-comparison{background:var(--paper)}
.image-stage.compare-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-height:none;overflow:visible;padding:16px 24px}
.image-stage.compare-images figure+figure{margin-top:0}
.image-pan{height:clamp(220px,calc(100dvh - 420px),640px);overflow:auto;overscroll-behavior:contain;border:1px solid var(--line);background:var(--surface);scrollbar-width:thin}
.image-pan .image-width{min-width:0;margin:0 auto}.image-pan .image-width img{box-shadow:none}
.image-stage figcaption{font-size:12px}.image-note{flex-wrap:wrap;gap:8px}
.settings-section-title{display:flex;align-items:center;justify-content:space-between}.settings-section-title h3{margin:0}
.settings-row .cache-value{font-size:13px;white-space:nowrap}.settings-row{gap:20px}
.shortcut-key{border-color:var(--line);background:var(--bg);min-width:100px}.shortcut-key kbd{color:var(--ink);font-size:13px}
.shortcut-capture{display:block;border:1px solid var(--line);border-radius:8px;text-align:center;padding:24px;font-size:24px;margin-bottom:16px}
@media(max-width:1099px){.bilingual-reading{padding:8px 24px 32px}.bilingual-heading,.bilingual-pair{column-gap:24px}.bilingual-pair .reading{font-size:var(--text-size)}.bilingual-pair .reading h1{font-size:22px}.settings-row{gap:16px}.content-header{gap:12px}}
@media(max-width:899px){.bilingual-heading{display:none}.bilingual-pair{grid-template-columns:1fr;gap:12px;border-bottom:1px solid var(--line);padding-bottom:20px}.pair-label{display:block}.image-stage.compare-images{grid-template-columns:repeat(2,minmax(0,1fr));padding:12px;gap:12px}}
.paper-wrap.original-only>.translated-reading{display:none}
.paper-wrap.original-only>.original-reading{display:block}
@media(min-width:1100px){.app{height:calc(100dvh - 64px)}}
@media(min-width:1100px) and (max-height:700px){.app{height:calc(100dvh - 40px)}.app-footnote{display:none}}
/* Softer native typography, operable home navigation, resilient settings rows. */
:root{--font:'SF Pro Text','PingFang SC',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--display:'SF Pro Display','PingFang SC',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--weight-body:400;--weight-title:500}
html,body{font-weight:var(--weight-body);font-synthesis:none;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-weight:var(--weight-title);letter-spacing:0}
.reading{font-weight:var(--weight-body);line-height:1.85}.reading h1{font-size:26px}.reading h2{font-weight:500}.navigation button[aria-current=page]{font-weight:500}
.brand{width:100%;justify-content:flex-start;min-height:48px;padding:8px 12px;margin-bottom:16px;font:500 23px/1.3 var(--display);letter-spacing:-.02em}
.window-top .window-home{margin-left:auto;min-height:28px;padding:4px 0;font-size:11px;color:var(--muted)}
.page-title #title{font:500 15px/1.5 var(--font);padding:4px 8px;min-height:32px;margin-left:-8px}.page-label{font-size:13px;color:var(--muted);padding-left:8px;border-left:1px solid var(--line)}
.connection-note{display:inline-block;margin-left:4px;font-size:11px;font-weight:400;color:var(--muted)}
.switch{justify-content:flex-start;align-items:center;gap:0;width:40px;height:24px;padding:3px;border:0;box-sizing:border-box}
.switch:before{width:18px;height:18px;flex:0 0 18px;transform:translateX(0)}
.switch[aria-checked=true]:before{transform:translateX(16px)}
.cache-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:20px}
.cache-row>.od-field{min-width:0}.cache-row .cache-value{display:grid;gap:2px;justify-items:end;font-size:13px;min-width:80px;font-variant-numeric:tabular-nums}
.cache-value>span{display:block;white-space:nowrap}.cache-value>span+span{font-size:12px;color:var(--muted)}.cache-row>button{flex:none}
.cache-exact{overflow-wrap:anywhere;text-align:right;font-variant-numeric:tabular-nums}
.quick-steps{display:flex;flex-wrap:wrap;gap:12px 24px;padding:16px 0;font-size:13px;color:var(--muted)}.quick-steps span{display:block}
.quick-demo-row{display:flex;align-items:flex-start;gap:24px;justify-content:space-between}.quick-demo-row .settings-footnote{margin:0;flex:1}.quick-demo-row button{flex:none}
@media(hover:hover){.switch[aria-checked=false]:hover{background:var(--faint)}.switch[aria-checked=true]:hover{background:var(--accent)}}
@media(max-width:1099px){.brand{font-size:21px;padding:8px}.cache-row{gap:16px}.quick-demo-row{gap:16px}}

/* Delivery polish: readable chrome, resilient content, and keyboard feedback. */
:root{--faint:#667386;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--table-min:640px;--focus-ring:2px solid var(--accent)}
:root[data-theme=dark]{--faint:#a3aec0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip-link{position:fixed;top:var(--space-2);left:var(--space-2);z-index:200;padding:var(--space-2) var(--space-4);background:var(--surface);border:var(--focus-ring);border-radius:var(--radius);transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.global-controls label,.reading-label,.bilingual-heading,.settings-section h3{font-size:12px}
.global-controls select,.segmented button{font-size:13px}
.settings-section h3{font-weight:600;letter-spacing:.02em;color:var(--ink)}
.settings-row>*,.content-header>*{min-width:0}
.settings-row small{max-width:64ch;line-height:1.65}
.content-header>.od-field{flex:1}
.content-header>.od-row{flex:none;max-width:100%}
.content-header h2{font-size:16px;line-height:1.5;font-weight:500}
.reading-layout:not(.compare)>.translated-reading>.reading-label,.reading-layout.original-only>.original-reading>.reading-label{max-width:70ch;margin-inline:auto}
.table-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin;margin-block:var(--space-6);border:1px solid var(--line);border-radius:var(--space-1)}
.reading .table-scroll table{min-width:var(--table-min);margin:0;font-size:14px;table-layout:auto}
.reading .table-scroll th,.reading .table-scroll td{padding:var(--space-3);overflow-wrap:normal;word-break:normal}
.reading .table-scroll th{font-size:13px;white-space:nowrap}
.table-scroll:focus-visible{outline:var(--focus-ring);outline-offset:2px}
.table-pair .table-scroll{margin:0}
.popup[open]{display:flex;flex-direction:column;overflow:visible;max-height:calc(100dvh - 48px)}
.popup-header,.popup-footer{flex:none}
.popup-body{min-height:0;overflow:auto;overscroll-behavior:contain;scroll-padding-block:var(--space-4)}
.popup-header{border-radius:12px 12px 0 0}
.popup-footer{border-radius:0 0 12px 12px}
.popup-body input[aria-invalid=true]{border-color:var(--danger)}
.popup-body .form-error{min-height:0;line-height:1.6}
button.icon-only{min-width:36px;min-height:36px}
button:disabled{opacity:.55;cursor:not-allowed}
button.primary:disabled{background:var(--soft);color:var(--muted);border-color:var(--line);opacity:1}
.segmented button{min-height:32px}
.switch{position:relative}
.switch::after{content:'';position:absolute;inset:-6px 0}
.notice.error{background:var(--danger-bg);padding:var(--space-4);border:0;border-radius:var(--space-1)}
.notice.error>.od-field>span{color:var(--danger);font-weight:500}
.notice .od-field{min-width:0}
.notice{flex-wrap:wrap}
.notice .od-field{flex:1 1 240px}
.notice .od-field p{overflow-wrap:anywhere;line-height:1.65}
.result-footer .footer-status{font-size:13px}
.page-heading h2{font-size:24px}
.messages,.workspace-scroll,.page{scroll-padding:var(--space-4)}
.toast{bottom:88px}
@media(max-width:1099px){
 .content-header{flex-wrap:wrap;padding-top:var(--space-4)}
 .content-header>.od-row{justify-content:flex-start}
 .global-controls select{max-width:144px}
 .empty-workspace{padding-top:var(--space-6)}
 .empty-heading{margin-bottom:var(--space-4)}
 .input-wrap>textarea{min-height:96px}
 .sample-heading{margin-top:var(--space-6)}
 .sample-row{padding-block:var(--space-3)}
}
@media(prefers-contrast:more){:root{--line:#8792a3}:root[data-theme=dark]{--line:#8792a3}button.secondary,.segmented{border:1px solid var(--line)}}
@media(forced-colors:active){button,select,input,textarea,.segmented{border:1px solid ButtonText}.switch{border:1px solid ButtonText}.switch:before{background:ButtonText}.switch[aria-checked=true]{background:Highlight}.switch[aria-checked=true]:before{background:HighlightText}.progress-line span{background:Highlight}:focus-visible{outline:2px solid Highlight!important}}