:root{--paper:#fbf4e8;--room:#f4ede2;--ink:#4c4a44;--muted:#6b655c;--accent:#526c7e;--cloth:#5b7486;--page-ratio:1.5;--book-serif:"Source Serif 4","Songti SC","Noto Serif CJK SC",Georgia,serif;--book-sans:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color-scheme:light;color:var(--ink);background:var(--room);font-family:var(--book-sans)}
html,body{width:100%;min-height:100%;overscroll-behavior:none}body{overflow:hidden;background:var(--room) url("style/paper-grain.svg") repeat}button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:disabled{opacity:.3;cursor:default}button:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.room{height:100dvh;min-height:360px;max-width:1512px;margin:auto;padding:max(26px,env(safe-area-inset-top)) 42px max(20px,env(safe-area-inset-bottom));display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:18px}
.book-header{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;max-width:1280px;margin:auto}.collection-label{margin:0 0 9px;color:var(--muted);font:400 11px/1.4 var(--book-sans);letter-spacing:.16em}.book-header h1{margin:0;font:400 28px/1.3 var(--book-serif);letter-spacing:.06em}.text-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;white-space:nowrap;border:0;background:transparent;padding:6px 8px;font:400 13px var(--book-sans);color:var(--accent);cursor:pointer}.text-button span{font-size:18px}
.stage{position:relative;display:grid;place-items:center;min-height:0;min-width:0;width:100%;padding:0}.book-rig{position:relative;display:grid;place-items:center;min-width:0;max-width:100%;width:min(100%,1260px);height:420px}.book{position:relative;isolation:isolate;filter:drop-shadow(0 14px 22px rgb(74 65 51 / 16%));transition:translate 650ms ease;opacity:0}.book[data-layout="landscape"][data-edge="front"]{translate:-25% 0}.book[data-layout="landscape"][data-edge="back"]{translate:25% 0}html[data-ready="true"] .book{opacity:1}#loading{position:absolute;font:400 14px var(--book-serif);color:var(--muted)}html[data-ready="true"] #loading{display:none}.book-page{background:var(--paper)}.book-page.--left::before,.book-page.--right::before{width:clamp(10px,3%,20px)}.photo-page img{display:block;width:100%;height:100%;object-fit:contain;filter:none;border:0;border-radius:0;box-shadow:none}.photo-page img:not([src]){visibility:hidden}
.cover-page,.back-page{color:#fff8eb;background-color:var(--cloth)}.cover-page::after,.back-page::after{content:"";position:absolute;inset:0 auto 0 2.4%;width:1px;background:rgb(255 248 235 / 28%);pointer-events:none}.cover-copy{position:absolute;left:9%;top:22%;width:38%;font-family:var(--book-serif)}.cover-copy p{margin:0 0 1.4cqw;font-size:5.1cqw;line-height:1.2;letter-spacing:.09em}.cover-copy h2{margin:0;font-size:7.3cqw;line-height:1.15;letter-spacing:.08em;font-weight:400}.cover-copy span{display:block;margin-top:5.4cqw;max-width:90%;font-size:1.9cqw;line-height:1.8;letter-spacing:.025em}.cover-picture{position:absolute;right:7%;top:23%;width:47%;height:56%;margin:0;display:flex;align-items:center;justify-content:center;transform:rotate(2deg)}.cover-picture img{width:100%;height:auto;max-height:100%;object-fit:contain;box-shadow:0 3px 8px rgb(43 55 62 / 10%)}.art-page .cover-foot{left:9%;bottom:9%;font:400 1.8cqw/1.5 var(--book-serif);letter-spacing:.12em;color:inherit}.dedication-page{display:grid;place-items:center}.dedication-page>div{width:66%}.dedication-title{font:400 4cqw/1.65 var(--book-serif);margin:0 0 4cqw}.dedication-text{font:400 2.1cqw/2 var(--book-serif);color:var(--muted);margin:0 0 6cqw}.dedication-count{font:400 1.7cqw/1.8 var(--book-sans);color:var(--muted);letter-spacing:.06em}.back-page>div{position:absolute;left:15%;top:27%}.back-page>div p{margin:0 0 5cqw;font:400 4.4cqw/1.7 var(--book-serif);letter-spacing:.04em}.back-page>div span{font:400 2.1cqw var(--book-serif)}
.reader-footer{width:min(100%,1100px);margin:auto;display:grid;gap:14px}.scene-caption{text-align:center;min-height:47px}#page-status{color:var(--muted);font:400 10px var(--book-sans);letter-spacing:.14em;font-variant-numeric:tabular-nums}.scene-caption p{font:400 17px/1.5 var(--book-serif);margin:5px 0 0}.controls{display:grid;grid-template-columns:48px 1fr 48px;align-items:center;gap:28px;width:min(100%,360px);margin:auto}.round-button{display:grid;place-items:center;width:44px;height:44px;border:1px solid #c7c8c1;border-radius:50%;background:rgb(255 250 240 / 55%);padding:0;color:var(--accent);font:400 23px/1 var(--book-sans);cursor:pointer}.controls .round-button{width:48px;height:48px}#reading-hint{color:var(--muted);font:400 11px var(--book-sans);text-align:center;letter-spacing:.06em}.reader-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:10px;color:var(--muted)}.reader-actions .text-button{min-height:36px;font-size:12px}.reader-actions .text-button span{font-size:16px}
dialog{color:var(--ink);background:var(--paper) url("style/paper-grain.svg") repeat;border:1px solid #d9cfbf;border-radius:6px;box-shadow:0 18px 70px rgb(48 43 35 / 18%)}dialog::backdrop{background:rgb(50 48 43 / 38%);backdrop-filter:blur(3px)}.contents-dialog{width:min(960px,calc(100vw - 32px));max-height:calc(100dvh - 40px);padding:26px}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}.dialog-header p{margin:0 0 8px;color:var(--muted);font-size:11px;letter-spacing:.08em}.dialog-header h2{margin:0;font:400 24px/1.4 var(--book-serif)}.thumbnail-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 16px}.thumbnail{min-width:0;border:0;background:none;padding:0;text-align:left}.thumbnail img{display:block;width:100%;height:auto;aspect-ratio:1.5;object-fit:contain;border-radius:2px}.thumbnail span{display:flex;align-items:baseline;gap:8px;font:400 12px/1.5 var(--book-serif);padding:9px 2px 0}.thumbnail b{font:400 9px var(--book-sans);color:var(--muted)}.thumbnail[aria-current="true"] img{outline:2px solid var(--accent);outline-offset:4px}
.zoom-dialog{position:fixed;inset:0;width:100%;height:100dvh;max-width:none;max-height:none;margin:0;border:0;border-radius:0;padding:18px max(20px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom));overflow:hidden}.zoom-dialog[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:12px}.zoom-header{display:flex;align-items:center;gap:18px}.zoom-header h2{font:400 19px/1.4 var(--book-serif);margin:0 auto 0 0}.zoom-viewport{display:flex;align-items:center;justify-content:center;min-height:0;overflow:auto;touch-action:pan-x pan-y pinch-zoom}.zoom-viewport img{display:block;width:100%;height:100%;object-fit:contain;flex-shrink:0}.zoom-viewport.magnified{display:block}.zoom-viewport.magnified img{width:min(200vw,2304px);height:auto;max-width:none;margin:0}.zoom-footer{display:flex;align-items:center;justify-content:center;gap:30px;min-height:44px}.zoom-footer span{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}#load-error{position:fixed;inset:45% 20px auto;text-align:center;font-size:14px}
@media(hover:hover){.round-button:not(:disabled):hover{border-color:var(--accent);background:#e8e7de}.text-button:hover{color:#3d5b70}.thumbnail:hover img{outline:1px solid var(--accent);outline-offset:4px}}
@media(max-width:759px){.room{padding:max(24px,env(safe-area-inset-top)) 16px max(14px,env(safe-area-inset-bottom));gap:12px}.book-header h1{font-size:25px}.collection-label{margin-bottom:8px;font-size:10px}.reader-footer{gap:12px}.scene-caption p{font-size:16px}.controls{gap:18px;width:min(100%,320px)}.reader-actions{padding-inline:3px}.contents-dialog{padding:20px;max-height:calc(100dvh - 24px)}.dialog-header h2{font-size:22px}.thumbnail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 14px}.thumbnail span{font-size:12px}.zoom-dialog{padding-top:max(12px,env(safe-area-inset-top));padding-inline:12px}.zoom-header{gap:8px}.zoom-header h2{font-size:15px}.zoom-header .text-button{font-size:12px}}
@media(max-height:500px) and (orientation:landscape){.room{min-height:0;padding:10px 24px;gap:4px}.collection-label{display:none}.reader-actions{display:flex;justify-content:flex-end}.reader-actions #orientation{display:none}.book-header h1{font-size:18px}.book-header .text-button{min-height:44px}.reader-footer{gap:5px}.scene-caption{min-height:25px;display:flex;align-items:center;justify-content:center;gap:12px}.scene-caption p{font-size:13px;margin:0}.controls .round-button{height:44px;width:44px;font-size:20px}.controls{grid-template-columns:44px 1fr 44px}.reader-footer .text-button{min-height:44px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important}.book{transition:none}}

.reader-actions{display:grid;grid-template-columns:1fr auto 1fr;gap:8px}.reader-actions>#open-image{justify-self:end}.music-player{position:relative;display:flex;align-items:center;gap:0;min-width:0;z-index:30}.music-toggle{gap:6px!important;padding-inline:4px!important}.music-toggle #music-label{font-size:11px}.music-toggle .music-note{font-size:17px}.music-player[data-state="playing"] .music-note{color:var(--accent)}.music-player[data-state="loading"] .music-note{opacity:.5}#music-settings>summary{display:grid;place-items:center;width:30px;height:44px;list-style:none;cursor:pointer;color:var(--accent);border-radius:4px}#music-settings>summary::-webkit-details-marker{display:none}#music-settings>summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.music-panel{position:absolute;left:50%;bottom:calc(100% + 12px);transform:translateX(-50%);width:240px;padding:18px 18px 14px;background:var(--paper) url("style/paper-grain.svg");border:1px solid #d9cfbf;border-radius:6px;box-shadow:0 8px 28px rgb(48 43 35 / 15%);color:var(--ink)}.music-track{margin:0;font:400 16px/1.5 var(--book-serif)}.music-artist{margin:5px 0 18px;font-size:11px;color:var(--muted)}.music-volume-label{display:flex;justify-content:space-between;align-items:center;font-size:12px}.music-volume-label output{font-variant-numeric:tabular-nums;color:var(--muted)}#music-volume{display:block;width:100%;height:32px;margin:4px 0;accent-color:var(--accent);cursor:pointer}.music-help{margin:8px 0 0;font-size:10px;line-height:1.7;color:var(--muted)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:359px){.reader-actions{grid-template-columns:auto 1fr auto;gap:2px}.music-player{justify-self:center}.reader-actions .text-button{font-size:11px}.reader-actions .text-button span{font-size:14px}.reader-actions #orientation{font-size:9px}.music-toggle #music-label{font-size:10px}.music-panel{width:220px}}
@media(max-height:500px) and (orientation:landscape){.reader-actions{display:grid;grid-template-columns:1fr auto 1fr}.music-panel{bottom:calc(100% + 6px)}.music-player{grid-column:2}}
.page-sound-option{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;margin-top:12px;padding-top:8px;border-top:1px solid #d9cfbf;font-size:12px;cursor:pointer}.page-sound-option input{width:18px;height:18px;margin:0;accent-color:var(--accent);cursor:pointer}.music-panel{max-height:calc(100dvh - 80px);overflow:auto}