@font-face{font-family:"Reader UI";font-style:normal;font-weight:400 600;font-display:swap;src:url(font-ui-28dd09e122.woff2) format("woff2")}
@font-face{font-family:"Reader Song";font-style:normal;font-weight:400 600;font-display:swap;src:url(font-reading-f59b8295c5.woff2) format("woff2")}
:root{color-scheme:light;--bg:#f8f8f5;--surface:#fff;--tonal:#eeefea;--text:#292c28;--muted:#74786e;--line:#dee1d8;--primary:#30362d;--on-primary:#fff;--mark:#e1ebf5;--blue:#001080;--purple:#7d2691;--teal:#006c67;--reading-size:25px}
html[data-theme=dark]{color-scheme:dark;--bg:#191a18;--surface:#20211e;--tonal:#292c26;--text:#e1e3db;--muted:#aab0a3;--line:#3e4438;--primary:#d9dfd0;--on-primary:#252b20;--mark:#2c4055;--blue:#9cdcfe;--purple:#c586c0;--teal:#4ec9b0}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.65 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;border:0;min-height:48px;background:transparent}button:disabled{cursor:default;opacity:.4}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,canvas:focus-visible{outline:2px solid var(--teal);outline-offset:3px}input,select,textarea{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:12px 16px}a{color:inherit}.text-button,.filled-button,.outlined-button{padding:10px 18px;min-width:48px;border-radius:24px}.text-button:hover{background:var(--tonal)}.filled-button{background:var(--primary);color:var(--on-primary)}.outlined-button{border:1px solid var(--line)}.sidebar{position:fixed;inset:0 0 auto;z-index:30;height:88px;display:grid;grid-template-columns:1fr minmax(0,2fr) 1fr;align-items:center;padding:16px 32px;background:var(--bg)}#shell-back{justify-self:start}#shell-title{grid-column:2;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:20px/1.5 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif}#shell-actions{grid-column:3;display:flex;justify-content:flex-end;gap:4px}.main{padding:128px 32px 64px}.view{max-width:1000px;margin:0 auto}.view-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;gap:16px}.section-title{margin:0;font:34px/1.4 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;font-weight:400}.import-description,.setting-info,.small{font-size:12px;line-height:1.8;color:var(--muted)}.import-description{margin-top:32px}
body.reading-mode .main{padding:0}body.reading-mode #view-reading{position:relative;max-width:none;min-height:100dvh}.reading-card{position:absolute;top:50%;left:50%;transform:translate(-50%,calc(-50% - var(--sentence-offset,0px)));width:min(800px,calc(100vw - 72px));margin:0;padding:0;transition:transform .22s ease}.sentence{font-family:Georgia,'Times New Roman','Songti SC','SimSun',serif;font-size:clamp(24px,calc(var(--reading-size) + 5px),37px);line-height:1.9;text-align:center}.word{font:inherit;line-height:inherit;display:inline;padding:0;min-width:0;min-height:0;vertical-align:baseline;border-radius:3px;background:none;color:inherit}.keyword{color:var(--keyword-color)!important}.word.selected,.translated.selected{background:var(--mark);box-shadow:0 0 0 2px var(--mark)}.word:hover{color:var(--teal)}.pager{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);display:flex;align-items:center;justify-content:center;gap:10px;z-index:25;background:var(--bg);border-radius:28px;padding:4px 8px;white-space:nowrap}.counter{color:var(--muted);font-size:12px;min-width:60px;text-align:center}.reading-progress{position:fixed;bottom:0;left:0;right:0;height:2px;background:transparent}#progress{height:100%;background:var(--line);transition:width .2s}.reading-focus .sidebar,.reading-focus .pager{visibility:hidden;pointer-events:none}.reading-focus .reading-progress{opacity:0}
#help{position:fixed;top:var(--help-top,65dvh);left:50%;transform:translateX(-50%);width:min(740px,calc(100vw - 64px));max-height:calc(100dvh - var(--help-top,65dvh) - 90px);overflow:auto;overscroll-behavior:contain;border-top:1px solid var(--line);scrollbar-width:thin;padding:0 0 20px;z-index:12;background:var(--bg)}.reading-focus #help{max-height:calc(100dvh - var(--help-top,65dvh) - 24px)}#help-toolbar{position:sticky;top:0;display:flex;justify-content:flex-end;align-items:center;gap:4px;padding:8px 0;background:var(--bg);z-index:2}#analysis-status{color:var(--muted);font-size:12px;margin-right:auto}.translation{font:21px/1.9 Georgia,'Songti SC','SimSun',serif}.analysis-note{font:15px/1.9 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;color:var(--muted);margin:16px 0}.word-note{border-top:1px solid var(--line);margin-top:20px;padding-top:12px}.word-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.word-title{font:22px/1.5 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif}.word-note p{font-size:14px;margin:8px 0}.word-note #word-usage{color:var(--muted)}.context-text{font:17px/1.9 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.actions{display:flex;justify-content:flex-end;gap:8px}.empty-note{color:var(--muted);font-size:15px}
.resume-card{display:block;text-align:left;width:100%;padding:32px 36px;margin-bottom:40px;background:var(--tonal);border-radius:28px}.resume-label{font-size:12px;color:var(--muted)}.resume-card h2{font:30px/1.5 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;margin:8px 0}.resume-card p{margin:4px 0;color:var(--muted)}.resume-location{font-size:12px}.resume-track{height:3px;max-width:300px;background:var(--line);margin-top:24px}.resume-track span{display:block;height:100%;background:var(--primary)}.book-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px 28px}.shelf-book{width:100%;padding:0;text-align:left}.cover{aspect-ratio:3/4;border-radius:6px 16px 16px 6px;padding:24px 22px;display:flex;flex-direction:column;align-items:flex-start;color:#33382e;background:linear-gradient(90deg,#0000000d,transparent 8%,#ffffff30 9%,transparent 11%),var(--cover-tone);box-shadow:0 8px 18px #00000008;font-family:system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;overflow:hidden;transition:transform .2s}.shelf-book:hover .cover{transform:translateY(-4px)}.cover img{width:100%;height:100%;object-fit:cover}.cover.has-image{padding:0;background:none}.cover-title{font-size:26px;line-height:1.5;overflow-wrap:anywhere}.cover-author{font-size:11px;line-height:1.6;letter-spacing:.05em}.cover-rule{width:24px;height:1px;background:currentColor;opacity:.5;margin:26px 0 20px}.shelf-title,.shelf-author{display:block}.shelf-title{font:19px/1.5 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;margin-top:16px}.shelf-author{font-size:12px;color:var(--muted);margin-top:6px}
.settings-tabs,.overview-tabs{display:flex;gap:6px}.settings-tabs{margin-bottom:32px;border-bottom:1px solid var(--line);padding-bottom:12px}.settings-tabs button{padding:10px 24px;border-radius:24px}.settings-tabs [aria-selected=true],.overview-tabs [aria-pressed=true]{background:var(--tonal)}.settings-pane{max-width:720px}.setting-section{padding:24px 0;border-bottom:1px solid var(--line)}.setting-section:first-child{padding-top:0}.setting-label{font-size:17px;margin-bottom:20px}.check-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:52px}.check-row input{width:19px;height:19px;accent-color:var(--primary)}.setting-row{display:flex;align-items:center;gap:16px;min-height:60px}.setting-row input[type=range]{flex:1;padding:0;accent-color:var(--primary)}.setting-row input[type=number]{width:100px;margin-left:auto}.theme-options{display:flex;gap:12px}.theme-options button{border:1px solid var(--line);padding:10px 24px;border-radius:24px}.theme-options [aria-pressed=true]{background:var(--primary);color:var(--on-primary)}.api-field{display:block;color:var(--muted);margin:16px 0}.api-field input{display:block;width:100%;margin-top:8px;color:var(--text);min-height:52px}.api-controls{display:flex;align-items:center;gap:20px;margin:24px 0 16px}.api-controls #api-status{font-size:12px;color:var(--muted)}.advanced{margin:20px 0}.advanced summary{cursor:pointer;padding:12px 0;color:var(--muted)}.advanced[open]{padding-bottom:16px}.record-filters{display:flex;gap:12px;margin-bottom:16px}.record-filters select{min-width:150px}.record-row{border-bottom:1px solid var(--line);padding:16px 0}.record-row summary{cursor:pointer;display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;min-height:48px}.record-row summary span:first-child{margin-right:auto}.record-row pre{white-space:pre-wrap;word-break:break-word;font:12px/1.7 ui-monospace,monospace;background:var(--tonal);border-radius:12px;padding:16px;max-height:400px;overflow:auto}.record-meta{font-size:12px;color:var(--muted)}.memory-book{padding:24px 0;border-bottom:1px solid var(--line)}.memory-book h2{font:25px/1.5 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;margin:0 0 12px}.memory-book textarea{display:block;width:100%;min-height:90px;resize:vertical;margin:16px 0}.memory-book .memory-actions{display:flex;justify-content:flex-end;gap:8px}.memory-note{font:15px/1.8 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;border-top:1px solid var(--line);padding:12px 0}.saved-item{padding:22px 0;border-bottom:1px solid var(--line)}.saved-top,.saved-bottom{display:flex;justify-content:space-between;gap:16px}.saved-term{font:24px system-ui,sans-serif}.saved-source{font:17px/1.8 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;color:var(--muted)}.word-count{font-size:12px;color:var(--muted)}
dialog{background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:24px;width:min(720px,calc(100vw - 32px));max-height:85dvh;padding:24px}dialog::backdrop{background:#10150c55;backdrop-filter:blur(4px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.dialog-head h2{font:25px system-ui,sans-serif;margin:0}.chapter-button{display:flex;width:100%;justify-content:space-between;text-align:left;padding:16px;border-radius:16px}.chapter-button:hover,.chapter-button.active{background:var(--tonal)}.chapter-button span{font-size:12px;color:var(--muted)}.overview-dialog{width:min(1060px,calc(100vw - 32px));height:min(820px,90dvh);max-height:90dvh;padding:20px 24px;overflow:hidden}.overview-dialog #chapter-list{max-height:calc(90dvh - 120px);overflow:auto}.overview-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.overview-controls select{max-width:75%;min-height:48px}.overview-body{display:grid;grid-template-columns:1fr 64px;gap:24px;height:calc(min(820px,90dvh) - 190px)}#overview-scroll{position:relative;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin}#overview-spacer{width:1px}#overview-items{position:absolute;inset:0 16px auto 0}.overview-unit{position:absolute;left:0;right:0;text-align:left;font:18px/1.85 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;padding:16px 20px;border-radius:12px;overflow:hidden}.overview-unit.current{background:var(--tonal);box-shadow:inset 3px 0 var(--teal)}.overview-unit:hover{background:var(--tonal)}#overview-map{width:64px;height:100%;border-radius:8px;touch-action:none;cursor:pointer}#section-content{white-space:pre-wrap;font:18px/1.9 system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif}.toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--on-primary);padding:12px 20px;border-radius:24px;z-index:60;max-width:90vw;font-size:13px}
@media(max-width:720px){.sidebar{height:76px;padding:12px 16px;grid-template-columns:1fr minmax(0,1.5fr) 1fr}#shell-title{font-size:17px}#shell-actions .text-button{padding:10px 12px}.main{padding:104px 20px 40px}.section-title{font-size:30px}.view-head{margin-bottom:24px}.reading-card{width:calc(100vw - 40px)}.sentence{font-size:clamp(23px,calc(var(--reading-size) + 1px),33px);line-height:1.85}.pager{gap:2px;bottom:20px;padding:4px;max-width:calc(100vw - 20px)}.pager .text-button{padding:10px 12px}.counter{min-width:55px}#help{width:calc(100vw - 40px)}.translation{font-size:19px}.book-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 18px}.cover{padding:20px 18px}.cover-title{font-size:23px}.resume-card{padding:24px;margin-bottom:32px}.resume-card h2{font-size:26px}.settings-tabs button{padding:10px 18px}.record-filters{flex-wrap:wrap}.record-filters select{min-width:0;flex:1}.overview-dialog{padding:16px;width:calc(100vw - 16px);border-radius:20px}.overview-body{gap:10px;grid-template-columns:1fr 40px}#overview-map{width:40px}.overview-unit{font-size:16px;padding:12px}.overview-dialog #overview-items{right:8px}.record-row summary{gap:8px 12px}#shell-back{padding:10px 12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important}}

.resume-card{display:grid;grid-template-columns:1fr 120px;gap:32px;align-items:center}.resume-card .cover{width:120px;box-shadow:none;padding:16px}.resume-card .cover-title{font-size:18px}.resume-card .cover-rule{margin:12px 0}.resume-card .cover-author{font-size:9px}.resume-card .has-image{padding:0}
@media(max-width:720px){.resume-card{grid-template-columns:1fr 80px;gap:16px}.resume-card .cover{width:80px;padding:12px}.resume-card .cover-title{font-size:14px}.resume-card .cover-author{font-size:8px}.resume-card .has-image{padding:0}.resume-card h2{font-size:24px}}

.reading-card{max-height:46dvh;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}

#show-context[aria-pressed=true]{background:var(--tonal)}.memory-book details{margin-top:16px}.memory-book summary{cursor:pointer;padding:12px 0;min-height:48px}

#shell-title{font:500 14px/1.5 system-ui,sans-serif;display:flex;align-items:center;justify-content:center;min-height:48px;min-width:0}#shell-title.reading-title{padding:10px 16px;border-radius:24px}#shell-title.reading-title span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-logo{width:106px;height:32px;object-fit:contain}html[data-theme=dark] .brand-logo{filter:invert(1) brightness(1.2)}
.cover{padding:0;align-items:center;justify-content:center;background:var(--cover-tone);box-shadow:none}.cover-initial{font:500 clamp(64px,8vw,110px)/1 system-ui,sans-serif;color:#363b34}.resume-card .cover{padding:0}.resume-card .cover-initial{font-size:64px}.resume-card .cover.has-image{padding:0}
#help button,#help .filled-button{background:transparent!important;color:var(--muted);border:0;border-radius:0;padding:4px 10px;min-height:48px;min-width:48px;font-size:13px}#help button:hover{color:var(--text);text-decoration:underline;text-underline-offset:5px}#help-toolbar #show-context[aria-pressed=true]{background:transparent;text-decoration:underline}.saved-word{color:var(--teal);font-weight:600}.sentence .word.noun{color:var(--teal);font-weight:650}
.overview-dialog{padding:24px 28px;border-radius:24px}.overview-dialog .dialog-head{padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:20px}.overview-controls{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.overview-controls select{width:100%;max-width:100%}.overview-body{height:calc(min(820px,90dvh) - 212px);gap:28px}#overview-items{right:24px}.overview-paragraph{position:absolute;left:0;right:0;margin:0;padding:0 8px;font:18px/1.9 system-ui,sans-serif;overflow-wrap:anywhere}.overview-sentence{cursor:pointer;border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}.overview-sentence:hover{background:var(--tonal)}.overview-sentence.current{background:var(--mark)}.overview-sentence:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
@media(max-width:720px){#shell-title{font-size:14px}#shell-title.reading-title{padding:10px 4px}.brand-logo{width:90px;height:28px}.cover-initial{font-size:78px}.resume-card .cover-initial{font-size:46px}.overview-dialog{padding:16px}.overview-body{gap:12px}.overview-paragraph{font-size:16px;padding:0 4px}#overview-items{right:12px}.overview-controls .text-button{padding:10px 12px}.overview-dialog .dialog-head{margin-bottom:16px}}

#shell-title:empty{visibility:hidden}.brand-logo{display:none!important}.reading-card{transform:translate(calc(-50% + var(--drag-x,0px)),calc(-50% - var(--sentence-offset,0px)));touch-action:pan-y;transition:transform .18s ease,opacity .16s ease}.reading-card.dragging{transition:none;user-select:none}.reading-card.turning{opacity:0}.sentence{white-space:pre-wrap}.source-sentence{cursor:pointer}.source-sentence:hover{color:var(--text)}body[data-card-mode=paragraph] .sentence{font-size:clamp(23px,var(--reading-size),32px);line-height:1.85;text-align:left}.icon-button{width:48px;height:48px;min-width:48px;padding:14px!important;display:inline-flex;align-items:center;justify-content:center;border:0!important;background:transparent!important;border-radius:0!important;color:var(--muted)}.icon-button:hover{color:var(--text)!important;text-decoration:none!important}.icon-button svg{display:block;flex-shrink:0}#save-word[aria-pressed=true] svg{fill:currentColor}#help-toolbar{position:sticky;gap:0}#help-toolbar #analysis-status{order:-1}#help-more{order:9}#collapse{order:10}#help-menu{position:sticky;top:64px;display:flex;justify-content:flex-end;gap:0;background:var(--bg);z-index:3;border-bottom:1px solid var(--line)}#help-menu[hidden]{display:none}.overview-paragraph{padding:0}.overview-line{display:grid;grid-template-columns:64px minmax(0,1fr);line-height:1.9}.overview-gutter{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding-right:14px;color:var(--muted);user-select:none;font:11px/3.1 system-ui,sans-serif}.paragraph-number{opacity:.8}.line-number{text-align:right;min-width:20px;opacity:.7}.overview-line-text{white-space:pre-wrap;overflow-wrap:anywhere}#share-dialog{width:min(780px,calc(100vw - 24px));max-height:92dvh}.share-options{display:flex;gap:12px;align-items:center;margin-bottom:20px}.share-options .check-row{margin-left:auto;gap:12px}.share-options select{min-width:120px}.share-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}#share-paper{background:#f8f8f5;color:#292c28;padding:40px 32px;border:1px solid var(--line);min-height:360px;display:flex;flex-direction:column;justify-content:center}#share-paper[data-theme=dark]{background:#191a18;color:#e1e3db}#share-paper.square{min-height:300px}#share-original,#shared-original{font:25px/1.9 Georgia,'Songti SC',SimSun,serif;white-space:pre-wrap}#share-translated,#shared-translation{font:20px/1.9 Georgia,'Songti SC',SimSun,serif;white-space:pre-wrap;border-top:1px solid var(--line);padding-top:20px;margin-top:24px}#share-attribution,#shared-attribution{font:12px/1.8 system-ui,sans-serif;opacity:.6;margin-top:32px}#share-public-base{width:100%}#view-shared{max-width:760px;padding-top:32px}#turn-preview{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(800px,calc(100vw - 72px));max-height:46dvh;overflow:hidden;opacity:0;pointer-events:none;font:clamp(24px,calc(var(--reading-size) + 5px),37px)/1.9 Georgia,'Songti SC',SimSun,serif;white-space:pre-wrap;text-align:center}
@media(max-width:720px){.overview-line{grid-template-columns:56px minmax(0,1fr)}.overview-gutter{padding-right:10px;gap:4px;line-height:2.76;font-size:10px}.share-options{flex-wrap:wrap;gap:8px}.share-options select{min-width:100px}.share-actions{gap:4px}.share-actions button{padding:10px 14px}#share-paper{padding:32px 20px}#share-original,#shared-original{font-size:22px}.pager{gap:0}.pager .text-button{padding:10px 10px}#turn-preview{width:calc(100vw - 40px);font-size:clamp(23px,calc(var(--reading-size) + 1px),33px)}}

#view-shared{min-height:calc(100dvh - 192px);display:flex;flex-direction:column;justify-content:center}
/* Presentation is independent from sentence/paragraph grouping. */
#layout-dialog{width:min(480px,calc(100vw - 32px))}.layout-choices{display:grid;gap:10px}.layout-choices button{padding:20px;border-radius:20px;background:var(--surface);border:1px solid var(--line);color:var(--text);font:500 16px system-ui,sans-serif}.layout-choices button[aria-pressed=true],.theme-options button[aria-pressed=true]{background:var(--mark);color:var(--text)}
#player-meta{display:none}body[data-layout=player] .reading-card{width:min(820px,calc(100vw - 48px));padding:32px 40px;border-radius:32px;background:color-mix(in srgb,var(--teal) 5%,var(--bg));border:1px solid color-mix(in srgb,var(--line) 75%,transparent);box-shadow:0 18px 70px #00000006;max-height:43dvh;box-sizing:border-box}body[data-layout=player] .sentence{font-size:clamp(24px,var(--reading-size),34px);line-height:1.85}body[data-layout=player] .reading-card.long-card .sentence{text-align:start}body[data-layout=player] #player-meta{display:flex;position:fixed;left:50%;bottom:114px;transform:translateX(-50%);width:min(600px,calc(100vw - 72px));flex-direction:column;align-items:center;gap:5px;font:12px/1.6 system-ui,sans-serif;color:var(--muted)}#player-chapter{font-size:14px;color:var(--text)}#player-seek{width:100%;height:24px;accent-color:var(--teal);cursor:pointer}#player-position{font-variant-numeric:tabular-nums}body[data-layout=player] .pager{background:color-mix(in srgb,var(--teal) 5%,var(--bg));border:1px solid var(--line);padding:6px 12px}body[data-layout=player] #auto-pause{display:none}.reading-focus #player-meta{visibility:hidden;pointer-events:none}.analysis-open #player-meta{display:none!important}body:not([data-layout=player]) #player-play{display:none}#fragment-save[aria-pressed=true]{color:var(--teal)}#fragment-save[aria-pressed=true] svg{fill:currentColor}
#view-waterfall{max-width:1320px;margin:auto}.flow-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:20px}.flow-head>select{max-width:50%;border:0;background:transparent;font-weight:500}.flow-filters{display:flex;align-items:center;gap:4px}.flow-filters button{padding:12px 16px;border-radius:24px;color:var(--muted)}.flow-filters button[aria-pressed=true]{background:var(--mark);color:var(--text)}.flow-filters select{margin-left:12px;max-width:100px}#waterfall-scroll{height:calc(100dvh - 240px);min-height:250px;overflow-y:auto;overscroll-behavior:contain;padding:4px 12px 28px 4px;scrollbar-width:thin}#flow-grid{position:relative;width:100%}.flow-card{position:absolute;box-sizing:border-box;border:1px solid var(--line);border-radius:24px;padding:24px;background:color-mix(in srgb,var(--teal) 3%,var(--bg));color:var(--text);text-align:start;cursor:pointer;transition:background .15s,border-color .15s,box-shadow .15s}.flow-card:hover,.flow-card:focus-visible{background:color-mix(in srgb,var(--teal) 7%,var(--bg));border-color:var(--teal);box-shadow:0 6px 20px #00000005;outline:none}.flow-card.current{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal)}.flow-card-text{font:20px/1.8 Georgia,'Songti SC',SimSun,serif;white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:12;-webkit-box-orient:vertical;overflow:hidden}.flow-card-meta{display:flex;justify-content:space-between;gap:12px;font:11px/1.8 system-ui,sans-serif;color:var(--muted);margin-bottom:14px}.flow-card[data-saved=true] .flow-card-meta:after{content:'•';color:var(--teal)}#view-waterfall[data-density=compact] .flow-card{padding:18px;border-radius:20px}#view-waterfall[data-density=compact] .flow-card-text{font-size:17px;-webkit-line-clamp:9}.flow-footer{display:flex;justify-content:flex-end;align-items:center;gap:8px;padding-top:12px;font:12px system-ui,sans-serif;color:var(--muted)}#flow-range{margin-right:auto}#flow-earlier,#flow-later{margin:12px auto;display:block}#flow-earlier[hidden],#flow-later[hidden]{display:none}
[dir=rtl] .sentence,[dir=rtl].translation{text-align:start}#explanation-language,#source-language,#ui-language{min-width:130px;max-width:56%;font:14px system-ui,sans-serif}.sentence,.translation{overflow-wrap:anywhere}.setting-row select{padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--text)}
@media(max-width:720px){body[data-layout=player] .reading-card{padding:24px;width:calc(100vw - 32px);border-radius:28px}body[data-layout=player] #player-meta{bottom:106px}.pager #counter{min-width:40px}.pager #previous,.pager #next{padding:10px 8px}.pager #layout-open,.pager #share-open{padding:10px 8px}.pager .icon-button{width:44px;min-width:44px;height:48px;padding:12px!important}.flow-head{gap:10px;flex-wrap:wrap}.flow-head>select{max-width:100%;width:100%}.flow-filters{width:100%}.flow-filters select{margin-left:auto}#waterfall-scroll{height:calc(100dvh - 290px)}.flow-card-text{font-size:19px}.flow-card{padding:20px}.flow-footer{gap:0}#flow-range{font-size:11px}}
@media(prefers-reduced-motion:reduce){.flow-card{transition:none}}


body[data-layout=player] #counter{display:none}@media(max-width:720px){body[data-layout=player] .pager{padding:4px;gap:0}}
/* Spotify-style scrolling lyrics; the current source and explanation share one stable stage. */
#lyrics-stage,#lyric-follow{display:none}body[data-layout=player].reading-mode #view-reading{background:var(--lyric-bg);border-radius:28px 28px 0 0;min-height:100dvh}body[data-layout=player].reading-mode #lyrics-stage{display:block;position:absolute;inset:94px 430px 180px 42px}#lyrics-scroll{height:100%;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;mask-image:linear-gradient(to bottom,transparent,#000 8%,#000 90%,transparent)}#lyrics-scroll::-webkit-scrollbar{display:none}#lyrics-stack{position:relative;padding:40dvh 0;max-width:920px;margin:0 auto}#lyrics-before,#lyrics-after{display:flex;flex-direction:column;gap:38px}#lyrics-before{margin-bottom:38px}#lyrics-after{margin-top:38px}.lyric-line{display:block;width:100%;padding:0;text-align:start;white-space:pre-wrap;overflow-wrap:anywhere;font:600 clamp(29px,calc(var(--reading-size) + 10px),43px)/1.55 Georgia,'Songti SC',SimSun,serif;border:0;background:none;border-radius:0;color:color-mix(in srgb,var(--text) 55%,transparent);transition:color .2s;cursor:pointer}.lyric-line.lyric-past{color:color-mix(in srgb,var(--text) 33%,transparent)}.lyric-line:hover,.lyric-line:focus-visible{color:var(--text);outline:none}.lyric-line:focus-visible{text-decoration:underline;text-underline-offset:7px}
body[data-layout=player].reading-mode .reading-card{position:relative;top:auto;left:auto;transform:none!important;width:100%;max-height:36dvh;padding:0;background:none;border:0;box-shadow:none;border-radius:0;transition:none;overflow-y:auto;scrollbar-width:thin}body[data-layout=player].reading-mode .sentence,body[data-layout=player][data-card-mode=paragraph].reading-mode .sentence{font:600 clamp(29px,calc(var(--reading-size) + 10px),43px)/1.55 Georgia,'Songti SC',SimSun,serif;text-align:start}.lyric-line:disabled{opacity:.5}body[data-layout=player].reading-mode #turn-preview{display:none}body[data-layout=player].reading-mode #help{position:fixed;top:126px!important;bottom:174px;left:auto;right:32px;transform:none;width:350px;max-height:none;padding:0 0 0 24px;box-sizing:border-box;background:none;border-top:0;border-left:1px solid color-mix(in srgb,var(--text) 15%,transparent);scrollbar-width:thin}body[data-layout=player].reading-mode #help-toolbar,body[data-layout=player].reading-mode #help-menu{background:var(--lyric-bg)}body[data-layout=player].reading-mode .translation{font-size:23px;line-height:1.85}body[data-layout=player].reading-mode .analysis-note,body[data-layout=player].reading-mode .word-note{font-size:14px;line-height:1.8}body[data-layout=player].reading-mode #player-meta{display:flex!important;bottom:80px;width:min(580px,calc(100vw - 80px));gap:2px}body[data-layout=player].reading-mode #player-chapter{font-size:12px}body[data-layout=player].reading-mode #player-author{display:none}body[data-layout=player].reading-mode #player-position{font-size:11px}body[data-layout=player].reading-mode #lyric-follow{display:inline-flex;position:absolute;right:-50px;bottom:18px}body[data-layout=player].reading-mode .pager{bottom:15px;background:none;border:0;padding:0}body[data-layout=player].reading-mode .reading-progress{display:none}.reading-focus #player-meta{visibility:hidden!important}
/* Lyric cards: typographic blocks on flat, muted colors, without ornamental borders. */
.flow-card{background:var(--lyric-card-bg,var(--tonal));border:1px solid transparent;border-radius:24px;padding:30px 26px}.flow-card:hover,.flow-card:focus-visible{background:var(--lyric-card-bg,var(--tonal));border-color:color-mix(in srgb,var(--text) 35%,transparent);box-shadow:none}.flow-card.current{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal)}.flow-card-text{font:600 24px/1.65 Georgia,'Songti SC',SimSun,serif;-webkit-line-clamp:10}.flow-card-meta{font-size:10px;letter-spacing:.03em;opacity:.75;margin-bottom:28px}#view-waterfall[data-density=compact] .flow-card{padding:24px 20px}#view-waterfall[data-density=compact] .flow-card-text{font-size:20px;line-height:1.65}#share-paper{background:var(--lyric-card-bg,#e5ece6);border:0;border-radius:24px;min-height:430px;padding:40px;align-items:stretch}#share-paper[data-theme=dark]{background:var(--lyric-card-bg,#29352f);color:#f0f3ed}#share-title{font:500 13px/1.7 system-ui,sans-serif;margin-bottom:52px;opacity:.7}#share-original{font:600 32px/1.65 Georgia,'Songti SC',SimSun,serif;text-align:start}#share-translated{font-size:22px}#share-attribution{margin-top:48px}#share-paper.square{min-height:350px}
@media(max-width:1000px){body[data-layout=player].reading-mode #lyrics-stage{inset:84px 340px 160px 28px}body[data-layout=player].reading-mode #help{width:290px;right:24px;padding-left:20px}.lyric-line,body[data-layout=player].reading-mode .sentence,body[data-layout=player][data-card-mode=paragraph].reading-mode .sentence{font-size:clamp(27px,calc(var(--reading-size) + 5px),35px)}}
@media(max-width:720px){body[data-layout=player].reading-mode #view-reading{border-radius:20px 20px 0 0}body[data-layout=player].reading-mode #lyrics-stage{inset:78px 24px calc(32dvh + 104px) 24px}#lyrics-before,#lyrics-after{gap:28px}#lyrics-before{margin-bottom:28px}#lyrics-after{margin-top:28px}body[data-layout=player].reading-mode .reading-card{width:100%;padding:0;max-height:28dvh}.lyric-line,body[data-layout=player].reading-mode .sentence,body[data-layout=player][data-card-mode=paragraph].reading-mode .sentence{font-size:clamp(26px,calc(var(--reading-size) + 3px),33px);line-height:1.6}body[data-layout=player].reading-mode #help{top:auto!important;bottom:102px;left:24px;right:24px;width:auto;max-height:28dvh;border-left:0;border-top:1px solid color-mix(in srgb,var(--text) 15%,transparent);padding:8px 0 0}body[data-layout=player].reading-mode .translation{font-size:20px}body[data-layout=player].reading-mode #help-toolbar{min-height:44px}body[data-layout=player].reading-mode #player-meta{bottom:64px;width:calc(100vw - 96px)}body[data-layout=player].reading-mode #lyric-follow{right:-40px;bottom:8px}body[data-layout=player].reading-mode #player-chapter{display:none}body[data-layout=player].reading-mode .pager{bottom:8px}body[data-layout=player].reading-mode #help:not([hidden])~#player-meta{display:none}.flow-card-text{font-size:22px}#share-paper{padding:32px 24px}#share-original{font-size:28px}#share-title{margin-bottom:36px}}
@media(prefers-reduced-motion:reduce){.lyric-line{transition:none}}


body[data-layout=single].reading-mode .reading-card{background:var(--lyric-bg);border-radius:28px;padding:36px 40px;border:0;box-shadow:none;box-sizing:border-box;max-height:48dvh;width:min(780px,calc(100vw - 64px))}body[data-layout=single].reading-mode .sentence{font-weight:600;line-height:1.7;text-align:start}#card-credit{font:11px/1.8 system-ui,sans-serif;color:var(--muted);margin-top:30px}body[data-layout=player] #card-credit{display:none}@media(max-width:720px){body[data-layout=single].reading-mode .reading-card{width:calc(100vw - 40px);padding:28px 24px;border-radius:24px}#card-credit{margin-top:24px}}
:root{--ui-font:system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;--reader-serif:Georgia,'Reader Song','Noto Serif SC','Source Han Serif SC','Songti SC',SimSun,serif;--read-bg:#f4f4f0;--read-text:#242823;--read-muted:#898d87;--card-radius:24px;--card-padding:32px}body{font-family:var(--ui-font)}button,input,select,textarea,.setting-label,.setting-info,.settings-tabs,.analysis-note,.word-note,#word-definition,#word-usage,#analysis-status{font-family:var(--ui-font)!important}.sentence,.translation,.lyric-line,#share-original,#share-translated,#shared-original,#shared-translation,.flow-card-text{font-family:var(--reader-serif)!important}.word{font-family:inherit!important}#view-reading{--text:var(--read-text);--muted:var(--read-muted);--lyric-bg:var(--read-bg)}.ink-char{color:var(--read-muted);visibility:visible!important;transition:color .12s linear}.ink-char.ink-lit{color:var(--read-text)}.analysis-open .word.keyword .ink-char,.analysis-open .word.selected .ink-char{color:inherit}.sentence,.lyric-line,.flow-card-text,#share-original{font-weight:500!important}body[data-layout=player].reading-mode .sentence,body[data-layout=player][data-card-mode=paragraph].reading-mode .sentence{font-weight:500!important}.lyric-line{position:relative}.lyric-paragraph-number{display:block;margin:0 0 10px;font:11px/1.5 var(--ui-font);color:var(--read-muted);opacity:.8}.lyric-text{display:block}#paragraph-number{display:block;min-height:32px;padding:0 0 14px;margin:0;background:none;border:0;font:11px/1.5 var(--ui-font);color:var(--read-muted)}body[data-layout=player] #paragraph-number{padding-bottom:12px}.reading-card{border-radius:var(--card-radius)!important}body[data-layout=single].reading-mode .reading-card{padding:var(--card-padding)!important;background:var(--read-bg)}.flow-card,.flow-card:hover,.flow-card:focus-visible{background:var(--read-bg);color:var(--read-text);border-radius:var(--card-radius);padding:var(--card-padding);border-color:transparent}.flow-card.current{border-color:var(--teal)}#view-waterfall[data-density=compact] .flow-card{padding:calc(var(--card-padding)*.75);border-radius:var(--card-radius)}.flow-card-meta{color:var(--read-muted)}#share-paper,#share-paper[data-theme=dark]{background:var(--read-bg);color:var(--read-text);border-radius:var(--card-radius);padding:var(--card-padding)}.cover,.cover.has-image,.resume-card .cover{border-radius:18px!important;clip-path:none!important;overflow:hidden}.cover:before,.cover:after{display:none!important}.cover-initial{font:400 clamp(70px,9vw,130px)/1 Georgia,'Times New Roman',serif!important}.cover.has-image img{border-radius:18px}.shelf-layout{display:flex;gap:0}.library-tools{display:flex;align-items:center;gap:12px}.shelf-progress{display:block;font:11px/1.8 var(--ui-font);color:var(--muted);margin-top:5px}body[data-shelf-layout=list] .book-list{display:flex;flex-direction:column;gap:0}body[data-shelf-layout=list] .shelf-item{border-bottom:1px solid var(--line);padding:18px 0}body[data-shelf-layout=list] .shelf-book{display:grid;grid-template-columns:76px 1fr;grid-template-rows:auto auto auto;gap:0 22px;align-items:center;text-align:left;width:100%}body[data-shelf-layout=list] .shelf-book .cover{grid-column:1;grid-row:1/4;width:76px;aspect-ratio:3/4;height:auto;padding:0}body[data-shelf-layout=list] .cover-initial{font-size:52px!important}body[data-shelf-layout=list] .shelf-title{grid-column:2;grid-row:1;font-size:18px;margin:0;align-self:end}body[data-shelf-layout=list] .shelf-author{grid-column:2;grid-row:2;margin:2px 0}body[data-shelf-layout=list] .shelf-progress{grid-column:2;grid-row:3;margin:0;align-self:start}body[data-shelf-layout=list] .resume-card{grid-template-columns:88px 1fr;padding:24px;gap:24px;min-height:0}body[data-shelf-layout=list] .resume-card .cover{order:-1;width:88px;height:auto;aspect-ratio:3/4}body[data-shelf-layout=list] .resume-card h2{font-size:24px}.cover-letter-input{width:70px;text-align:center;font:20px Georgia,serif!important}#card-colors input[type=color]{width:64px;height:40px;padding:5px;border-radius:10px}#card-colors .setting-row{margin-bottom:12px}
#player-book{display:none}body[data-layout=player].reading-mode #player-book{display:flex;position:fixed;bottom:22px;left:24px;align-items:center;gap:14px;max-width:calc((100vw - 640px)/2);z-index:26}#player-cover .cover{width:50px;height:66px;padding:0;border-radius:10px!important}#player-cover .cover-initial{font-size:34px!important}#player-book-title{font:500 13px/1.5 var(--ui-font);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#player-book-author{font:11px/1.5 var(--ui-font);color:var(--muted)}#player-book>div:last-child{min-width:0}body[data-layout=player].reading-mode .pager{bottom:55px}body[data-layout=player].reading-mode #player-meta{bottom:16px;width:min(460px,calc(100vw - 600px))}body[data-layout=player].reading-mode #player-chapter{display:none}body[data-layout=player].reading-mode #player-position{position:absolute;right:-70px;bottom:4px}body[data-layout=player].reading-mode #share-open,body[data-layout=player].reading-mode #layout-open,body[data-layout=player].reading-mode #fragment-save{position:fixed;bottom:0}body[data-layout=player].reading-mode #layout-open{left:calc(50vw - 175px)}body[data-layout=player].reading-mode #share-open{left:calc(50vw - 240px)}body[data-layout=player].reading-mode #fragment-save{left:calc(50vw - 290px)}.reading-focus #player-book{visibility:hidden;pointer-events:none}
@media(max-width:1000px){body[data-layout=player].reading-mode #player-book{display:none}body[data-layout=player].reading-mode #player-meta{width:min(430px,calc(100vw - 180px))}body[data-layout=player].reading-mode #layout-open{left:135px}body[data-layout=player].reading-mode #share-open{left:65px}body[data-layout=player].reading-mode #fragment-save{left:15px}}
@media(max-width:720px){body[data-layout=player].reading-mode .pager{bottom:8px}body[data-layout=player].reading-mode #player-meta{bottom:68px;width:calc(100vw - 100px)}body[data-layout=player].reading-mode #player-position{right:-48px;font-size:10px}body[data-layout=player].reading-mode #layout-open,body[data-layout=player].reading-mode #share-open,body[data-layout=player].reading-mode #fragment-save{position:static}#paragraph-number{font-size:10px}body[data-shelf-layout=list] .resume-card{padding:18px;gap:18px;grid-template-columns:72px 1fr}body[data-shelf-layout=list] .resume-card .cover{width:72px}body[data-shelf-layout=list] .resume-card h2{font-size:22px}.library-tools{gap:4px}.library-tools .icon-button{width:40px;min-width:40px}.library-tools #import-button{padding:10px 14px}.flow-card-text{font-size:21px}}


body.reading-mode #player-play{display:inline-flex}@media(max-width:480px){body.reading-mode #counter{display:none}}

#view-reading{--teal:var(--read-accent);--blue:var(--read-blue);--purple:var(--read-purple);--mark:var(--read-mark)}.flow-card.current{border-color:var(--read-accent)}#player-secondary{display:none}body[data-layout=player].reading-mode #player-secondary{display:flex;position:fixed;bottom:24px;right:24px;z-index:27}#player-secondary-actions{display:flex}#player-secondary-actions>button{position:static!important}#player-more{display:none}.reading-focus #player-secondary{visibility:hidden;pointer-events:none}body[data-layout=player].reading-mode .pager{gap:8px}#player-secondary .icon-button{color:var(--read-muted)}@media(max-width:720px){body[data-layout=player].reading-mode #player-secondary{right:12px;bottom:8px}#player-more{display:inline-flex}#player-secondary-actions{display:none;position:absolute;right:0;bottom:56px;flex-direction:column;background:var(--read-bg);border:1px solid var(--line);border-radius:20px;padding:4px}#player-secondary.controls-open #player-secondary-actions{display:flex}body[data-layout=player].reading-mode .pager{gap:12px}}

/* v13: single-card typewriter versus complete, progressively lit lyrics. */
body[data-layout=single].reading-mode #view-reading{background:var(--read-bg)}
body[data-layout=single].reading-mode .reading-card{background:transparent!important;border:0!important;box-shadow:none!important;border-radius:0!important;padding:0!important}
body[data-layout=single].reading-mode #help,body[data-layout=single].reading-mode .pager{background:var(--read-bg)}
body[data-layout=single] .ink-char{visibility:hidden!important;color:var(--read-text);transition:none}
body[data-layout=single] .ink-char.ink-lit{visibility:visible!important}
body[data-layout=player] .ink-char{visibility:visible!important}

.bilingual-text{font:400 22px/1.85 var(--reader-serif);white-space:pre-wrap;overflow-wrap:anywhere;color:var(--read-text)}.bilingual-tools{display:flex;align-items:center;justify-content:space-between;min-height:22px;font:12px/1.6 var(--ui-font);color:var(--read-muted)}.bilingual-tools #bilingual-retry{height:40px;min-height:40px;width:40px}body[data-layout=single] #bilingual-reading{position:fixed;top:var(--bilingual-top,65dvh);left:50%;transform:translateX(-50%);width:min(780px,calc(100vw - 64px));max-height:min(22dvh,calc(100dvh - var(--bilingual-top,65dvh) - 100px));overflow-y:auto;border-top:1px solid var(--line);padding-top:12px}body[data-layout=player] #bilingual-reading{position:relative;min-height:80px;max-height:22dvh;overflow-y:auto;border-top:1px solid color-mix(in srgb,var(--read-text) 15%,transparent);padding-top:14px;margin-top:22px}body.analysis-open #bilingual-reading{visibility:hidden}body[data-layout=player] #bilingual-reading .bilingual-text{font-size:23px}.reading-focus .bilingual-tools{visibility:hidden}@media(max-width:720px){.bilingual-text,body[data-layout=player] #bilingual-reading .bilingual-text{font-size:19px}body[data-layout=single] #bilingual-reading{width:calc(100vw - 40px);max-height:min(20dvh,calc(100dvh - var(--bilingual-top,65dvh) - 90px))}body[data-layout=player] #bilingual-reading{max-height:18dvh;min-height:62px;margin-top:16px}}

/* Synchronized bilingual presentation, retaining the complete text layout. */
.bilingual-char{color:var(--read-muted);transition:color .12s linear;visibility:visible}
.bilingual-char.bilingual-lit{color:var(--read-text)}
body[data-layout=single] .bilingual-char{visibility:hidden!important;color:var(--read-text);transition:none}
body[data-layout=single] .bilingual-char.bilingual-lit{visibility:visible!important}
body[data-layout=player] .bilingual-char{visibility:visible!important}

#card-credit:empty{display:none}

/* v16: supplied transparent logo, same header footprint as controls. */
#shell-title .brand-logo{display:block!important;width:40px;height:40px;object-fit:contain;flex-shrink:0}html[data-theme=dark] #shell-title .brand-logo{filter:invert(1)}