/* 燈下翻講：紙、字、畫各留自己的空間。 */
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@property --ink{syntax:'<color>';inherits:true;initial-value:#242521}
@property --muted{syntax:'<color>';inherits:true;initial-value:#52534d}
@property --line{syntax:'<color>';inherits:true;initial-value:#9d9b91}
@property --link{syntax:'<color>';inherits:true;initial-value:#465d70}
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:root[data-theme=night]{--paper:#26282b;--ink:#e9e6de;--muted:#c6c4bd;--line:#777974;--link:#abc2d2;--art-paper:#d5d3cf;color-scheme:dark}
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@media(min-width:768px){.leaf+.leaf{border-right:1px solid var(--line)}.art-panels.multi{align-items:flex-start}.art-panels.multi .art-panel{max-height:85%}.art-panels.multi .art-panel:nth-child(2){align-self:center}.art-panels.multi .art-panel:nth-child(3){align-self:flex-end}.panel-dots{display:none}}
@media(max-width:767px){.book-top{gap:10px;padding-left:16px;padding-right:12px;font-size:14px}.book-top small{font-size:14px}.book-top>button{padding:7px 5px}.front{padding:20px 24px 60px}.front-intro{grid-template-columns:1fr;gap:20px}.front-intro figure img{aspect-ratio:1.5}.front-intro>div{position:relative}.front h1{position:absolute;right:0;top:-230px;font-size:28px;background:var(--paper);padding:8px}.front .hand{font-size:17px}.resume{margin-top:25px}.front section:not(.front-intro){margin-top:45px}.chapter-link{font-size:20px;gap:18px}#cover{padding:12px 20px 18px;min-height:460px}.opening-window{height:24%}.cover-writing{gap:14px;min-height:220px}.cover-writing h1{font-size:20px;gap:8px}.cover-poem{font-size:16px;line-height:1.7}.cover-invitation{font-size:14px;max-height:280px}.cover-actions{font-size:14px}#spread{padding:18px 23px 12px}.leaf{padding:12px 6px 22px}.edge-left{left:11px}.edge-right{right:11px}.page-controls,.listen-controls{gap:10px}.art-panel{max-height:100%}.art-caption{font-size:14px}.art-panels{flex:1}.drawer{padding:20px}.drawer h2{font-size:20px}.paper-note{font-size:21px}}
@media(max-height:480px) and (orientation:landscape){.book-top{height:48px}.enhanced.reading .book-top{height:48px}.enhanced.reading #reader{height:calc(100dvh - 124px)}#cover{height:calc(100dvh - 48px);min-height:0;display:grid;grid-template-columns:1fr 1.2fr;grid-template-rows:1fr auto;gap:10px;padding:5px 24px}.opening-window{height:100%;grid-row:1/3}.cover-writing{min-height:0;gap:10px;padding:0}.cover-writing h1{font-size:18px;gap:8px}.cover-poem{font-size:14px;line-height:1.6}.cover-invitation{display:none}.cover-actions{display:flex;align-items:center;justify-content:center;gap:10px}.cover-actions p,.cover-actions small{display:none}.cover-actions button.xingmu{min-height:44px}#spread{padding-top:5px;padding-bottom:5px}#reading-tools{padding-top:0}.page-controls button{min-height:26px;padding:0 10px}.listen-controls button.xingmu{min-height:36px}.leaf{padding:5px 8px;font-size:18px}.art-caption{font-size:12px;height:3.3em;line-height:1.6}.art-credit{display:none}.art-note{font-size:15px;min-height:0}.panel-dots button{min-height:28px}.ending{max-height:none;font-size:20px}#next-chapter{flex-direction:row;gap:18px;padding:8px}.next-card{font-size:12px}.next-card p{margin:5px 0}}
:root[data-motion=off] *, :root[data-tier=su] *{animation:none!important;transition:none!important;scroll-behavior:auto!important}:root[data-motion=off] .window-rain,:root[data-tier=su] .window-rain,:root[data-line=true] .window-rain{display:none}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.window-rain{display:none}}
.leaf .s.current{border:0;padding:0;box-shadow:inset -1px 0 var(--ink)}.horizontal .leaf .s.current,.scroll-reading .s.current{border:0;box-shadow:inset 0 -1px var(--ink)}
.art-panels.multi{background-image:url(assets/paper-seam.svg);background-size:100% 100%}.before-arrival img{clip-path:polygon(0 0,100% 0,100% 24%,42% 24%,24% 75%,100% 81%,100% 100%,0 100%)}.before-arrival .hotspots{visibility:hidden}
:root[data-motion=off] *::before,:root[data-motion=off] *::after,:root[data-tier=su] *::before,:root[data-tier=su] *::after{animation:none!important;transition:none!important}.leaf.text-leaf .title .s{white-space:nowrap}
.cover-writing h1,.leaf.text-leaf .title{flex-direction:column}.leaf.text-leaf .title{gap:18px}.leaf.text-leaf .title .s{display:block}
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#spread::before{content:'';position:absolute;inset:0;background:#292d3020;pointer-events:none;opacity:0;transition:opacity 2.5s}.art-caption.current{box-shadow:inset 0 -1px var(--ink)!important}
.hotspot[data-hotspot=jar]{z-index:3}.scroll-reading #source .art-note,.scroll-reading #source .art-credit{margin-bottom:0}
.scroll-reading #reader>#page-seals{position:fixed;bottom:108px;right:24px;z-index:24}
.panel-dots button{font-size:0;text-decoration:none}.panel-dots button::before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--ink);opacity:.3}.panel-dots button[aria-current=true]::before{opacity:.85}.page-controls button{min-height:44px}
@media(max-height:480px) and (orientation:landscape){#reading-tools{display:flex;justify-content:center;gap:12px}.listen-controls button,.listen-controls button.xingmu{min-height:44px}.panel-dots button{min-height:44px}}

html{overscroll-behavior-x:none}#reader{touch-action:pan-y}.art-panel{height:auto;max-height:100%;aspect-ratio:var(--art-ratio,1)}
[data-panel="01a"] [data-hotspot=woman]{z-index:4}
#leaves{contain:strict}.leaf{contain:layout style paint}
.enhanced.scroll-reading{height:100dvh;overflow:hidden}.enhanced.scroll-reading #reader{overflow-y:auto;scrollbar-gutter:stable;scrollbar-width:thin}
.art-panels.multi{background-image:url(assets/paper-seam.svg),url(assets/paper-seam.svg);background-size:8px 100%;background-position:33.3% 0,66.6% 0;background-repeat:no-repeat}
@media(max-height:480px) and (orientation:landscape){.leaf.text-leaf .title{font-size:min(20px,calc((100dvh - 150px)/10))}}

/* 本回修正：墨槓與按鈕分開，紙面跟手指走，畫格用完整頁寬。 */
.cover-invitation span{display:block;white-space:nowrap}.ending{white-space:nowrap}
.cover-actions [data-action=read]{font-size:14px;color:var(--ink);text-decoration:underline;text-underline-offset:5px}
.book-top small{font-size:14px}.book-top{gap:12px}.book-top>button{white-space:nowrap}
.enhanced #source .opening-only{display:none}
.leaf.text-leaf p.xingmu{background:none;min-width:0;min-height:0;clip-path:none}
.leaf.text-leaf p:has([data-sentence="01-0171"]){white-space:nowrap}
#reading-tools{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:0 18px}
.book-options{display:flex;justify-content:center}.no-narration .listen-controls{display:none}
.no-narration #reading-tools{padding-top:8px}.no-narration .page-controls{gap:12px}
.chapter-credits{width:100%;font-size:14px;text-align:left;padding:12px;max-height:35dvh;overflow:auto}
#next-chapter{overflow-y:auto}.chapter-credits summary{cursor:pointer}.chapter-credits p{margin:10px 0}
.panel-dots{display:none}.art-leaf{padding:0;gap:8px}.art-panels{width:100%;background:none}
.art-panel{width:100%;max-width:100%;background:transparent;mask-mode:alpha}
.art-panel img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
[data-theme=night] .art-panel img{mix-blend-mode:normal}
.art-caption{flex:none;height:auto;min-height:1.9em;max-height:3.8em}.art-note:empty{display:none}
[data-theme=night] .front-intro figure img{filter:sepia(.12) brightness(.86);opacity:1;mix-blend-mode:normal}
#leaves,.turn-out{background:var(--paper)}#leaves.dragging{box-shadow:-3px 0 6px -4px var(--ink);user-select:none}
.turn-out{position:absolute;inset:22px 34px 18px;display:flex;flex-direction:row-reverse;gap:42px;pointer-events:none;box-shadow:-3px 0 6px -4px var(--ink);z-index:3;overflow:hidden}
@media(min-width:768px){.art-panels.multi{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1.35fr;gap:12px;align-items:center;background:none}.art-panels.multi .art-panel{width:100%;height:100%;max-height:100%;padding:0;aspect-ratio:auto;align-self:stretch}.art-panels.multi .art-panel:nth-child(2){grid-column:2;grid-row:1/3}.art-panels.multi .art-panel:nth-child(3){grid-column:1;grid-row:2}.art-leaf[data-figure="1-2"] .art-panels.multi{display:flex;flex-direction:column}.art-leaf[data-figure="1-2"] .art-panel:first-child{flex:3;min-height:0}.art-leaf[data-figure="1-2"] .art-panel:last-child{flex:1;min-height:0}}
@media(max-width:767px){.book-top{gap:6px;padding-left:10px;padding-right:8px;font-size:14px}.book-top small{letter-spacing:0}.book-top button{padding-left:4px;padding-right:4px}.front-book .book-top{flex-wrap:wrap;height:auto;min-height:64px}.front-book .book-top>a{flex:1 1 40%}.art-leaf{margin:0;min-width:0}.turn-out{inset:18px 23px 12px}.no-narration #reading-tools{gap:0 8px}.no-narration .page-controls{gap:2px}.book-options button{padding-left:8px;padding-right:8px}}
@media(max-height:480px) and (orientation:landscape){.turn-out{inset:5px 34px}.art-caption{font-size:14px}.ending{font-size:18px}#next-chapter{flex-wrap:wrap}.chapter-credits{flex-basis:100%}}

/* 乙案：紙色只由書頁供應；墨、套色、揭紙各是一層。 */
:root.scene-shifting:not([data-theme=night]){transition:--paper 2.5s,--line 2.5s}
:root.scene-night:not([data-theme=night]){--paper:#35312b;--ink:#f2eee5;--muted:#d5cdbf;--line:#a59a87;--link:#c1ced1}
:root[data-motion=off],:root[data-tier=su]{transition:none}
@media(prefers-reduced-motion:reduce){:root{transition:none}}
body{background:var(--paper)}
#spread{--sheet-paper:var(--paper);background:var(--sheet-paper)}
#spread::before{display:none}
#leaves,.turn-out{background:var(--sheet-paper,var(--paper))}
.leaf.text-leaf .ink-rule{width:5px;height:2.4em;margin-inline:.35em;clip-path:polygon(15% 0,100% 3%,70% 100%,0 93%)}
.horizontal .leaf.text-leaf .ink-rule{width:2.4em;height:5px}
.art-panels{min-height:0;padding:2px}.art-panel{height:100%;aspect-ratio:auto;mask-image:none;overflow:visible}
.print-sheet{position:relative;flex:none;background:var(--sheet-paper,var(--paper));overflow:hidden;mask-image:url(assets/brush-frame.svg);mask-size:100% 100%;mask-mode:alpha}
.art-panel .print-sheet img{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;filter:none;mix-blend-mode:normal}
.print-ink{z-index:1}.print-color{z-index:0}.print-frame,.print-mark,.print-lift{position:absolute;pointer-events:none;z-index:2}
.art-panel:not([data-printed=true]) .print-ink,.art-panel:not([data-printed=true]) .print-color{opacity:0}
.print-frame{inset:1px;background:url(assets/ch01-yi-frame.svg) center/100% 100% no-repeat}
.print-mark{right:5px;bottom:5px;width:28px;height:36px;background:var(--sheet-paper,var(--paper))}
.print-mark::after{content:'';position:absolute;inset:1px;background:url(assets/ch01-yi-bamboo.svg) center/contain no-repeat}
.print-lift{inset:0;background:var(--sheet-paper,var(--paper));opacity:0;z-index:3}
.rubbing .print-color{display:none}.rubbing .print-sheet .print-ink{mix-blend-mode:lighten}
.rubbing .print-frame,.rubbing .print-mark::after{filter:invert(.9)}
.art-credit,.art-caption{width:100%;padding:0 2px}.art-caption{overflow:visible;max-height:none;line-height:1.9}
[data-theme=night] .front-intro figure img{filter:none;background:var(--paper);mix-blend-mode:lighten}
.front-intro figure img{object-fit:contain;object-position:center;mask-image:url(assets/brush-frame.svg);mask-size:100% 100%;background:var(--paper)}
.front-book .book-top{flex-wrap:wrap;height:auto;min-height:92px;padding-bottom:36px}
.front-book .book-top .book-sound{position:static}
.front-book .book-top #sound-hint,.front-book .book-top .sound-notice{position:absolute;top:auto;bottom:6px;right:max(20px,env(safe-area-inset-right));max-width:calc(100vw - 40px);box-shadow:none;text-align:right}
@media(max-width:767px){.front-book .book-top{min-height:64px;padding-bottom:8px}.front-book .book-top #sound-hint,.front-book .book-top .sound-notice{bottom:-18px;right:24px;padding:0;line-height:1.5}.front-intro>div{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:16px;align-items:start}.front h1{position:static;grid-column:2;grid-row:1/4;background:none;padding:0;margin:0}.front-intro>div>p,.front-intro .resume{grid-column:1}.front-intro .resume{margin-top:16px}}
.opening-window picture{background:var(--paper)}[data-theme=night] .opening-window picture{background:var(--paper)}
.opening-window .window-tone{position:absolute;inset:0;background:transparent;pointer-events:none}.opening-window picture:has(#hero-img){position:relative;background:transparent}
[data-theme=night] .opening-window picture:has(#hero-img){background:var(--paper)}[data-theme=night] .opening-window img{mix-blend-mode:lighten}
@media(min-width:768px){.art-leaf[data-figure="1-2"] .art-panel:first-child{flex:3}.art-leaf[data-figure="1-2"] .art-panel:last-child{flex:1}}