/* Shared reading surfaces: the same night / paper / amber system as the main site. */
:root {
  color-scheme: dark;
  --night: #07080b;
  --paper: #eee8e1;
  --paper-soft: #d3cbc2;
  --muted: #92949b;
  --pink: #ec4e82;
  --amber: #d99a6a;
  --line: rgba(255, 255, 255, .10);
  --serif: "Songti SC", STSong, Georgia, serif;
}
html { scroll-behavior: smooth; background: var(--night); }
body {
  color: var(--paper); min-height: 100vh;
  background: linear-gradient(90deg, transparent calc(25% - .5px), rgba(255,255,255,.018) 25%, transparent calc(25% + .5px)),
    linear-gradient(90deg, transparent calc(75% - .5px), rgba(255,255,255,.018) 75%, transparent calc(75% + .5px)),
    radial-gradient(circle at 86% 3%, rgba(111,42,27,.24), transparent 32rem), var(--night);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased; line-height: 1.85;
}
a { color: inherit; text-underline-offset: 5px; text-decoration-thickness: 1px; }
a:hover { color: var(--amber); }
a:focus-visible, summary:focus-visible, button:focus-visible { outline: 2px solid var(--amber); outline-offset: 5px; }
.reading-shell, main { width: min(1200px, calc(100% - 64px)); margin: 0 auto; }
.reading-header { border-bottom: 1px solid var(--line); background: rgba(7,8,11,.8); }
.reading-header .reading-shell { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.reading-brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; text-decoration: none; font-size: 12px; letter-spacing: .13em; color: var(--paper); }
.reading-brand-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 28px #ec4e8228; color: #fff; font-size: 9px; font-weight: 700; letter-spacing: 0; }
.reading-header nav { display: flex; gap: 28px; }
.reading-header nav a { color: #a0a0a5; font-size: 11px; text-decoration: none; letter-spacing: .08em; }
.reading-header nav a:hover { color: var(--paper); }
.reading-breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; padding: 25px 0 0; color: #969397; font-size: 11px; }
.reading-breadcrumb a { text-decoration: none; }
.reading-breadcrumb > span:last-child { color: #b8aaa0; }
.reading-hero { padding: 35px 0 37px; border-bottom: 1px solid var(--line); }
.eyebrow { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; color: var(--amber); font-size: 10px; letter-spacing: .15em; margin: 0 0 20px; line-height: 1.6; }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--amber); }
.eyebrow span { letter-spacing: .06em; }
h1 { max-width: 940px; margin: 0; font: 400 clamp(32px, 3.5vw, 48px)/1.38 var(--serif); letter-spacing: -.035em; overflow-wrap: anywhere; text-wrap: pretty; }
.reading-lead { max-width: 830px; }
.reading-lead:empty { display: none; }
.reading-lead .meta:first-child { margin-top: 22px; }
.meta { color: var(--muted); font-size: 12px; line-height: 1.9; }
.meta-row { display: flex; flex-wrap: wrap; gap: 3px 16px; }
.meta-row span { white-space: nowrap; }
.meta a { color: #bcaa9d; }
.reading-lead .meta { margin-bottom: 5px; }
.reading-lead .meta + .meta { margin-top: 5px; }
.intro { color: #bbb6b3; font-size: 16px; line-height: 1.95; max-width: 830px; margin: 22px 0 0; }
.reading-layout { display: grid; grid-template-columns: minmax(0, 820px) minmax(180px, 1fr); column-gap: 72px; align-items: start; padding: 42px 0 68px; }
.reading-sidebar { grid-column: 2; grid-row: 1; align-self: stretch; min-width: 0; }
.reading-sidebar-inner { position: sticky; top: 30px; border-left: 1px solid var(--line); padding-left: 26px; }
.rail-label { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 20px; color: var(--amber); font-size: 10px; letter-spacing: .12em; }
.rail-label span { color: var(--muted); letter-spacing: .02em; }
.reading-toc { display: grid; gap: 15px; }
.reading-toc a { display: flex; gap: 12px; font-size: 12px; line-height: 1.7; color: #b6b0aa; text-decoration: none; }
.reading-toc a:hover { color: var(--amber); }
.reading-toc a span { flex: 0 0 17px; color: var(--amber); font: italic 11px/1.85 Georgia, serif; }
.rail-note { margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.rail-note > span { color: #b3a89e; font-size: 10px; letter-spacing: .17em; }
.rail-note p { line-height: 2; margin: 12px 0 20px; }
.rail-note a { color: var(--paper-soft); font-size: 11px; }
.reading-body { grid-column: 1; grid-row: 1; min-width: 0; }
.reading-copy { color: #b9b6b6; font-size: 15px; line-height: 2; counter-reset: chapter; }
h2 { color: var(--paper); font: 400 25px/1.5 var(--serif); letter-spacing: -.025em; margin: 46px 0 22px; }
.reading-copy h2 { display: flex; gap: 16px; align-items: baseline; scroll-margin-top: 28px; padding-top: 32px; border-top: 1px solid var(--line); }
.reading-copy h2::before { counter-increment: chapter; content: counter(chapter, decimal-leading-zero); color: var(--amber); font: italic 12px Georgia, serif; letter-spacing: 0; }
.reading-copy > h2:first-child, .reading-copy > section:first-child > h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.reading-copy h3 { color: var(--paper-soft); font: 400 21px/1.6 var(--serif); margin: 28px 0 12px; }
.reading-copy h4 { color: #cc9775; font-size: 15px; margin: 22px 0 10px; }
.reading-copy p { margin: 0 0 20px; }
.reading-copy strong { color: #d3cbc2; font-weight: 600; }
.reading-copy strong.level3-title { display: block; margin: 32px 0 13px; color: var(--paper); font: 400 22px/1.6 var(--serif); }
.reading-copy strong.level4-title { display: block; margin: 22px 0 10px; color: #d9a17a; font-size: 15px; font-weight: 500; }
/* Authored briefs use BRs after headings; block heading margins own that space. */
.reading-copy strong.level3-title + br,
.reading-copy strong.level3-title + br + br,
.reading-copy strong.level4-title + br,
.reading-copy strong.level4-title + br + br { display: none; }
.reading-copy > h2:first-child + p { padding: 22px 25px; border-left: 2px solid #c18b65; background: rgba(217,154,106,.045); color: #cec5bc; font-size: 16px; line-height: 2; }
.reading-copy a { color: #d8a581; }
.reading-copy ul, .reading-copy ol { padding-left: 24px; }
.reading-copy li { padding-left: 5px; margin: 12px 0; }
.reading-copy li::marker { color: var(--amber); font: italic 13px Georgia, serif; }
.reading-copy blockquote { margin: 24px 0; padding: 12px 24px; border-left: 2px solid var(--amber); background: #d99a6a09; }
p, li, a { overflow-wrap: anywhere; }
.emotion-copy { white-space: pre-wrap; }
.emotion-reference-marker { font-size: .8em; vertical-align: super; text-decoration: none; }
.reading-copy .reference-list { padding: 0; list-style: none; border-top: 1px solid var(--line); }
.reading-copy .reference-list li { margin: 0; padding: 0; border-bottom: 1px solid var(--line); }
.reference-link { display: flex; gap: 16px; padding: 17px 0; text-decoration: none; font-size: 13px; line-height: 1.85; }
.reference-number { flex: 0 0 24px; color: var(--amber); font: italic 14px/1.85 Georgia, serif; }
.reference-title { color: #bdb7b1; }
.reference-link:hover .reference-title { color: var(--amber); }
.notice { margin: 34px 0 0; padding: 20px 24px; border: 1px solid var(--line); border-left: 2px solid #8b6548; background: rgba(255,255,255,.015); color: #a4a0a0; font-size: 12px; line-height: 1.9; }
.reading-closing { color: #b6aba1; font-size: 12px; }
.reading-closing nav, .reading-closing > p:not(.notice) { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 28px 0 0; }
.reading-closing nav a, .reading-closing > p:not(.notice) a { padding: 9px 14px; border: 1px solid #39322e; border-radius: 3px; text-decoration: none; background: #d99a6a07; }
.reading-closing a:hover { border-color: var(--amber); }
.reading-collection { padding: 0 0 72px; }
.reading-collection > .content-grid:first-child { margin-top: 32px; }
.reading-collection > p { color: #aaa6a2; font-size: 14px; }
.reading-collection > ul { display: flex; flex-wrap: wrap; list-style: none; padding: 0; gap: 10px; }
.reading-collection > ul a { display: block; border: 1px solid var(--line); padding: 6px 14px; font-size: 12px; text-decoration: none; }
.content-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 16px; }
.content-card { min-width: 0; display: flex; flex-direction: column; padding: 24px; border: 1px solid #ffffff22; border-radius: 3px; background: linear-gradient(145deg, #ffffff06, #ffffff01); box-shadow: inset 0 1px 0 #ffffff07; transition: border-color .2s, background-color .2s; }
.content-card:hover { border-color: #9d674480; background-color: #d99a6a05; }
.content-card .meta { color: var(--amber); font-size: 10px; letter-spacing: .08em; margin: 0 0 12px; }
.content-card .meta:empty { display: none; }
.content-card h2, .content-card h3 { color: var(--paper); margin: 0 0 14px; font: 400 21px/1.55 var(--serif); }
.content-card h3 a { text-decoration: none; }
.content-card p:not(.meta) { color: var(--muted); font-size: 13px; line-height: 1.85; margin: 0; }
details { border-top: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; }
.reading-footer { border-top: 1px solid var(--line); padding: 32px 0 24px; background: #07080bcc; }
.reading-footer-brand { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.reading-footer-brand > p { color: var(--muted); font-size: 11px; }
.reading-footer nav { display: flex; flex-wrap: wrap; gap: 12px 24px; padding: 25px 0; }
.reading-footer nav a { color: #b0a9a4; font-size: 11px; text-decoration: none; }
.reading-colophon { display: flex; justify-content: space-between; gap: 18px; border-top: 1px solid var(--line); padding-top: 18px; color: #85858b; font-size: 10px; letter-spacing: .05em; }
.skip-link { position: absolute; top: -80px; left: 20px; padding: 8px 16px; background: #171820; z-index: 100; }
.skip-link:focus { top: 8px; }
@media (max-width: 1000px) {
  .reading-layout { column-gap: 36px; grid-template-columns: minmax(0, 1fr) 190px; }
  .reading-sidebar-inner { padding-left: 20px; }
}
@media (max-width: 760px) {
  .reading-shell, main { width: calc(100% - 40px); }
  .reading-header .reading-shell { min-height: 62px; gap: 16px; }
  .reading-brand { font-size: 10px; gap: 9px; letter-spacing: .09em; }
  .reading-header nav { gap: 13px; }
  .reading-header nav a { font-size: 10px; letter-spacing: 0; white-space: nowrap; }
  .reading-header .reading-brand > span:last-child { display: none; }
  .reading-breadcrumb { padding-top: 20px; font-size: 10px; gap: 10px; }
  .reading-hero { padding: 28px 0; }
  .eyebrow { font-size: 9px; letter-spacing: .08em; gap: 7px; margin-bottom: 17px; }
  .eyebrow::before { width: 21px; }
  .eyebrow span { font-size: 9px; }
  h1 { font-size: 31px; line-height: 1.43; letter-spacing: -.045em; }
  .reading-lead .meta:first-child { margin-top: 18px; }
  .meta { font-size: 11px; }
  .intro { font-size: 14px; line-height: 1.95; margin-top: 17px; }
  .reading-layout { display: flex; flex-direction: column; padding: 0 0 46px; gap: 28px; }
  .reading-sidebar { width: 100%; }
  .reading-sidebar-inner { position: static; border: 0; border-bottom: 1px solid var(--line); padding: 18px 0; }
  .rail-label { margin-bottom: 12px; font-size: 9px; }
  .reading-toc { display: flex; gap: 9px 18px; flex-wrap: wrap; }
  .reading-toc a { font-size: 11px; gap: 7px; }
  .reading-toc a span { flex-basis: auto; font-size: 10px; }
  .rail-note { display: none; }
  .reading-body { width: 100%; }
  .reading-copy { font-size: 14px; line-height: 1.95; }
  h2 { font-size: 23px; }
  .reading-copy h2 { margin: 34px 0 19px; padding-top: 26px; gap: 12px; scroll-margin-top: 20px; }
  .reading-copy > h2:first-child + p { padding: 18px; font-size: 14px; }
  .reading-copy strong.level3-title { font-size: 20px; margin-top: 27px; }
  .reading-copy strong.level4-title { font-size: 14px; }
  .notice { padding: 17px 18px; font-size: 11px; }
  .reading-closing nav, .reading-closing > p:not(.notice) { gap: 9px; font-size: 11px; }
  .reference-link { font-size: 12px; gap: 9px; }
  .content-grid { gap: 12px; }
  .content-card { padding: 21px; }
  .content-card h3 { font-size: 21px; }
  .reading-footer { padding: 26px 0 20px; }
  .reading-footer-brand { align-items: flex-start; flex-direction: column; gap: 8px; }
  .reading-footer-brand > p { margin: 0; }
  .reading-colophon { flex-direction: column; gap: 5px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }