/* Reading room: warm paper, restrained gold and vermilion. */
.book-cover { height: auto; }
.reader-main { scroll-margin-top: 20px; }
body { background-image: radial-gradient(ellipse at 5% 0%, #fff8e9 0, transparent 46%), radial-gradient(ellipse at 95% 55%, #e7d5af55 0, transparent 50%); }
html { scroll-behavior: smooth; }
:focus-visible { outline: 3px solid var(--red); outline-offset: 4px; }
.site-header { backdrop-filter: none; }
.card, .lib-item, .tl-item { transition: transform .35s ease, box-shadow .35s ease; }
.card-link:hover { transform: translateY(-5px); box-shadow: 0 14px 32px #69512515; }
.btn, .reader-btn { transition: background .2s, transform .2s, box-shadow .2s; }
.btn:hover, .reader-btn:hover { transform: translateY(-1px); box-shadow: 0 5px 14px #69512518; }
.fx-pending { opacity: 0; transform: translateY(18px); }
.fx-visible { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
.reading-progress { position: fixed; left: 0; top: 0; width: 100%; height: 3px; z-index: 1000; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg, var(--red), var(--gold)); pointer-events: none; }
.book-feature { max-width: 1000px; margin: 42px auto; padding: 44px; display: grid; grid-template-columns: 190px 1fr; gap: 44px; align-items: center; border: 1px solid var(--line); border-radius: 6px; background: linear-gradient(125deg,#fffcf4,#ece0c7); position: relative; overflow: hidden; box-shadow: 0 18px 60px #5b432810; }
.book-feature::after { content: '太乙'; position: absolute; right: -6px; bottom: -52px; font: 170px var(--serif); color: #a47c2510; pointer-events: none; }
.book-cover { width: 100%; display: block; border-radius: 2px 6px 6px 2px; transform: perspective(900px) rotateY(-8deg) rotateZ(-2deg); box-shadow: -6px 4px 0 #ad9368, 12px 18px 28px #43301430; transition: transform .6s ease; }
.book-feature:hover .book-cover { transform: perspective(900px) rotateY(0) rotateZ(0); }
.eyebrow { font-size: .72rem; text-transform: uppercase; letter-spacing: .2em; color: var(--red); font-weight: 700; margin-bottom: 12px; }
.book-feature h2 { font-size: clamp(1.65rem,3vw,2.25rem); margin: 0 0 14px; }
.book-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 22px; position: relative; z-index: 1; }
.book-actions .btn { text-decoration: none; display: inline-flex; align-items: center; }
.quiet-link { font-size: .88rem; text-underline-offset: 4px; }
.book-meta { display: flex; gap: 20px; flex-wrap: wrap; font-size: .82rem; color: var(--ink-soft); margin: 18px 0 0; }
.reader-shell { width: min(1420px, 100%); margin: 0 auto; padding: 36px 28px 60px; }
.reader-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin: 0 0 24px; }
.reader-heading h1 { font-size: clamp(1.65rem, 3vw, 2.5rem); margin: 0 0 8px; }
.reader-heading p { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.reader-layout { display: grid; grid-template-columns: 258px minmax(0,1fr); gap: 30px; align-items: start; }
.reader-aside { position: sticky; top: 24px; border: 1px solid var(--line); background: #f8f1e3; border-radius: 5px; padding: 22px 18px; max-height: calc(100vh - 48px); overflow: auto; }
.reader-aside h2 { font-size: 1.08rem; margin: 0 0 16px; }
.reader-aside .contents-link { display: block; padding: 10px 0; border-bottom: 1px solid #d8c9a366; text-decoration: none; color: var(--ink-soft); font-size: .87rem; }
.contents-link small { color: #8e7551; float: right; }
.reader-note { font-size: .78rem; color: #75674e; line-height: 1.65; margin: 20px 0 0; }
.reader-main { min-width: 0; }
.reader-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.reader-controls { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; }
.reader-btn { font: inherit; font-size: .82rem; cursor: pointer; border: 1px solid #cdbb97; border-radius: 4px; padding: 8px 12px; background: #fffaf0; color: var(--ink); line-height: 1.5; }
.reader-btn[aria-pressed='true'], .reader-btn.primary { background: var(--red); border-color: var(--red); color: #fff8e9; }
.reader-btn:disabled { opacity: .38; cursor: default; transform: none; box-shadow: none; }
.page-jump { display: flex; align-items: center; gap: 6px; font-size: .8rem; }
.page-jump input { width: 68px; border: 1px solid #cdbb97; border-radius: 4px; padding: 8px 5px; font: inherit; text-align: center; background: #fffaf0; color: var(--ink); }
.page-status { font-size: .82rem; color: #75674e; margin: 10px 0; min-height: 1.5em; }
.page-spread { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 18px; align-items: start; perspective: 1500px; }
.page-spread[data-view='text'], .page-spread[data-view='scan'] { grid-template-columns: minmax(0, 1fr); }
.page-spread[data-view='text'] .scan-panel, .page-spread[data-view='scan'] .text-panel { display: none; }
.page-spread[data-view='text'] .text-panel { max-width: 780px; width: 100%; margin: auto; }
.page-spread[data-view='scan'] .scan-panel { max-width: 780px; width: 100%; margin: auto; }
.folio-panel { background: #fffcf5; border: 1px solid #d7c9ac; border-radius: 3px; box-shadow: 0 8px 28px #65491e0c; overflow: hidden; }
.folio-label { display: flex; align-items: center; justify-content: space-between; padding: 11px 16px; border-bottom: 1px solid #dfd3bc; color: #7c6847; font-size: .67rem; letter-spacing: .13em; text-transform: uppercase; background: #f4ecdc; }
.page-text { font: 400 var(--reading-size, 20px)/1.8 var(--sans); color: #202020; letter-spacing: .005em; text-rendering: optimizeLegibility; padding: 26px 30px 40px; overflow-wrap: anywhere; min-height: 300px; }
.page-text p { white-space: pre-wrap; margin: 0 0 1.15em; }
.folio-label, .page-status, .reader-note, .search-count { font-family: var(--sans); }
.page-text mark, .search-result mark { background: #efd69b; color: inherit; border-radius: 2px; }
.scan-panel img { width: 100%; display: block; height: auto; background: white; }
.scan-caption { padding: 10px 16px; margin: 0; font-size: .75rem; text-align: center; }
.reader-bottom { margin-top: 22px; display: flex; justify-content: space-between; gap: 12px; }
.page-turn { animation: paper-in .2s ease; }
@keyframes paper-in { from { opacity: .7; } to { opacity: 1; } }
.book-search-form { display: flex; gap: 8px; margin: 12px 0; }
.book-search-form input { width: 100%; min-width: 0; font: inherit; padding: 11px 12px; border: 1px solid #cdbb97; border-radius: 4px; background: #fffaf0; color: var(--ink); }
.reader-aside .book-search-form { display: block; }
.reader-aside .book-search-form button { width: 100%; margin-top: 8px; }
.search-count { font-size: .8rem; color: #796b53; }
.search-result { display: block; text-decoration: none; padding: 14px 0; border-bottom: 1px solid #d8c9a3; color: var(--ink-soft); font-size: .83rem; }
.search-result strong { display: block; color: var(--red); font-size: .9rem; margin-bottom: 5px; }
.search-result p { margin: 0; overflow-wrap: anywhere; }
.search-result:hover { background: #e9d9b82b; }
.search-result:focus-visible { outline-offset: 0; }
.library-room { max-width: 1040px; margin: auto; padding: 38px 24px 60px; }
.library-room .book-feature { margin: 24px 0 38px; padding: 30px; grid-template-columns: 130px 1fr; }
.library-room .search-result { padding: 20px; margin-bottom: 12px; border: 1px solid var(--line); border-radius: 4px; background: #fffcf3; font-size: .94rem; }
.library-room .search-result strong { font-size: 1.1rem; }
.library-room .book-search-form input { padding: 16px; }
.load-message { text-align: center; padding: 60px 24px; color: var(--ink-soft); }
.motion-toggle { position: fixed; right: 16px; bottom: 16px; z-index: 30; font: 12px var(--sans); background: #fff9edf2; border: 1px solid var(--line); border-radius: 30px; color: #75664c; padding: 8px 12px; cursor: pointer; box-shadow: 0 3px 12px #0000000a; }
body.motion-off *, body.motion-off *::before, body.motion-off *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
body.motion-off .fx-pending { opacity: 1; transform: none; }
body.motion-off .fx-sky { display: none; }
@media (max-width: 960px) { .reader-layout { grid-template-columns: 210px minmax(0,1fr); gap: 18px; } .page-spread { grid-template-columns: 1fr; } .reader-shell { padding: 28px 20px 60px; } .reader-heading { align-items: start; flex-direction: column; gap: 12px; } }
@media (max-width: 640px) { .book-feature { grid-template-columns: 100px minmax(0,1fr); gap: 22px; margin: 24px 16px; padding: 25px 20px; } .book-feature h2 { font-size: 1.4rem; } .book-feature p:not(.eyebrow) { font-size: .85rem; } .book-meta { gap: 8px 16px; font-size: .7rem; } .book-actions { gap: 12px; } .reader-shell { padding: 24px 14px 65px; } .reader-layout { display: flex; flex-direction: column; gap: 20px; } .reader-aside { position: static; max-height: none; width: 100%; padding: 16px; } .reader-aside details:not([open]) h2 { display: inline; } .reader-main { width: 100%; } .reader-toolbar { gap: 14px; } .page-text { padding: 24px 22px; } .reader-heading h1 { font-size: 1.65rem; } .library-room { padding: 26px 16px 60px; } .library-room .book-feature { grid-template-columns: 82px 1fr; gap: 18px; padding: 20px 16px; } .book-search-form { flex-wrap: wrap; } .book-search-form button { width: 100%; } .reader-bottom .reader-btn { flex: 1; } .motion-toggle { right: 10px; bottom: 10px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } .fx-pending { opacity: 1; transform: none; } .book-cover, .book-feature:hover .book-cover { transform: none; } }