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90px);margin:0 0 17px}.chapter-art{width:112px;height:105px;top:40px;right:-8px}.chapter-meta{font-size:14px;gap:13px}.article-body,.article-body>p:first-child{font-size:16px;line-height:1.9}.article-body h2{font-size:26px;margin-top:2em;scroll-margin-top:20px}.article-body h3{font-size:22px}.article-body h4{font-size:18px}.article-body pre{font-size:12px;margin-inline:0;padding:42px 15px 18px}.article-body blockquote{padding:17px 18px}.article-body table{font-size:13px}.chapter-pager{display:grid;grid-template-columns:1fr 1fr;gap:20px}.pager-link.next{text-align:right}.pager-link span{font-size:13px}.mobile-reader-bar{position:fixed;bottom:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;min-height:60px;padding:8px 6px max(8px,env(safe-area-inset-bottom));background:#fffffff5;backdrop-filter:blur(12px);border-top:1px solid #dfd5f1}.mobile-reader-bar a,.mobile-reader-bar button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:42px;color:#7c6597;border:0;background:none;font-size:15px;white-space:nowrap}.mobile-reader-bar button{border-inline:1px solid #e1d8ee}.mobile-reader-bar img{width:19px;height:19px}.local-toc{display:none}.image-viewer>img{max-height:83dvh;max-width:94vw}.menu-dialog,.toc-dialog{padding:22px;max-height:86dvh}.menu-dialog .chapter-nav summary{font-size:15px}.menu-dialog .chapter-list a{font-size:14px}.search-status{font-size:14px}.empty-state{padding:45px 0 80px}.empty-state h2{font-size:24px}.empty-state p{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* Keep the generated sky artwork softly integrated at the foot of each page. */
.landing-footer,.quiet-footer{position:relative;isolation:isolate;background:#fff;overflow:hidden}.landing-footer::before,.quiet-footer::before{content:"";position:absolute;inset:0;z-index:-1;background:url("paper/sky.webp") center/cover no-repeat;transform:scaleY(-1);opacity:.42}
/* Responsive proportions aligned with the approved page designs. */
@media(min-width:901px){.page-banner{padding-top:110px;padding-bottom:32px;min-height:330px}.page-banner h1{font-size:64px}.path-banner h1{font-size:52px}.chapter-search{bottom:42px}.book-index{padding-top:8px}.index-part{padding-block:24px 27px}.path-feature{padding-block:16px 12px}.path-stations{padding-top:23px}.scene{min-height:220px;padding-block:27px}.scene-grid{padding-top:8px}}
@media(max-width:700px){.landing-hero{min-height:600px;padding-top:95px;background-image:url('paper/mobile-hero.webp?v=1');background-size:100% 600px}.landing-copy h1{font-size:clamp(33px,10.1vw,47px);line-height:1.4;font-weight:500;letter-spacing:-.055em}.eyebrow{margin-bottom:17px}.hero-actions{margin-top:22px}.book-counts{margin-top:17px}.landing-paths h2{font-size:24px}.path-cards h3{font-size:17px}.chapter-header h1{width:calc(100% - 108px);text-wrap:balance;line-height:1.4}.wordmark{font-size:20px}}
@media(min-width:701px) and (max-width:820px){.book-sidebar{transform:none}}
/* New manuscript: long chapter names, draft states, and local math rendering. */
.chapter-header h1{text-wrap:balance}.chapter-meta a{font-size:13px;color:#8065a7;align-self:center}.chapter-meta a:hover{text-decoration:underline}.pending-badge{display:inline-block;vertical-align:middle;margin-left:8px;padding:1px 7px;border:1px solid #d9cbee;border-radius:5px;font-size:11px;color:#8b719f}.chapter-pending{padding:25px;background:#f8f5ff;border-radius:12px}.chapter-pending h2{margin:0 0 15px}.toc-empty{font-size:13px;line-height:1.7;color:#897a9a}.arithmatex{color:#514164}.arithmatex .katex{font-size:1.08em}.article-body div.arithmatex{overflow-x:auto;overflow-y:hidden;max-width:100%;padding:8px 0}.article-body .katex-display{margin:.65em 0}.article-body .katex-error{white-space:pre-wrap}.path-stations .station-title{min-height:60px}.scene-copy h2{text-wrap:balance}
@media(min-width:1201px){.chapter-header h1{font-size:38px}.chapter-header{min-height:208px}.chapter-art{top:64px}}
@media(max-width:700px){.chapter-header h1{font-size:29px}.chapter-meta{gap:9px 14px}.chapter-meta a{font-size:12px}.chapter-art{width:104px;height:104px;top:47px}.book-counts{font-size:11px;letter-spacing:0}.page-banner #sourceStatus{font-size:11px}.path-stations .station-title{min-height:0}}

.article-body .arithmatex{display:inline-block;max-width:100%;vertical-align:middle;overflow-x:auto;overflow-y:hidden}.article-body .display-math{display:block;padding:8px 0}