:root {
  --reader-scale: 1;
  --paper: #F8F6F0;
  --surface: #FDFFFF;
  --surface-muted: #E9EBEF;
  --ink: #1C1E21;
  --ink-sub: #595B5E;
  --line: #D7D9DD;
  --bamboo: #316A43;
  --bamboo-deep: #0C2715;
  --bamboo-light: #EAF8ED;
  --green-mark: #4FA847;
  --amber: #DDAA55;
  --amber-deep: #8A6421;
  --practice: #296D40;
  --tibetan: #8D4635;
  --living: #775800;
  --history: #006D78;
  --doctrine: #345F95;
  --crossover: #7A487C;
  --radius: 2px;
  --content: 1200px;
  --reading: 68ch;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --duration: 180ms;
  --shadow: 0 4px 12px rgba(28, 30, 33, .08);
  --font-serif: "Noto Serif TC", "Source Han Serif TC", "Songti TC", serif;
  --font-sans: "Noto Sans TC", "Source Han Sans TC", "PingFang TC", sans-serif;
  --font-latin-serif: "Newsreader", "EB Garamond", Georgia, serif;
  --font-latin-sans: "Source Sans 3", Inter, sans-serif;
}

[data-theme="dark"] {
  --paper: #0C2715;
  --surface: #153A21;
  --surface-muted: #205231;
  --ink: #E9EBEF;
  --ink-sub: #BBBEC2;
  --line: #205231;
  --bamboo: #8CBE98;
  --bamboo-light: #B6DABE;
  --shadow: 0 4px 12px rgba(0, 0, 0, .28);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.is-dialog-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .5; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }
:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 300;
  padding: 8px 12px;
  background: var(--bamboo-deep);
  color: #F8F6F0;
  transform: translateY(-160%);
  transition: transform var(--duration) var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
[data-theme="dark"] .site-header { background: #F8F6F0; border-color: #D7D9DD; }
.header-inner {
  width: min(100% - 48px, var(--content));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.site-brand img { width: 184px; height: auto; }
.site-brand { flex: 0 0 auto; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a, .theme-toggle {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid transparent;
  color: var(--ink-sub);
  font-size: 14px;
  line-height: 1.2;
  transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), background-color var(--duration) var(--ease);
}
.site-nav a:hover, .site-nav a[aria-current="page"], .theme-toggle:hover {
  border-color: var(--line);
  color: var(--bamboo);
  background: var(--surface-muted);
}
[data-theme="dark"] .site-header .site-nav a, [data-theme="dark"] .site-header .theme-toggle { color: #595B5E; }
[data-theme="dark"] .site-header .site-nav a:hover, [data-theme="dark"] .site-header .site-nav a[aria-current="page"], [data-theme="dark"] .site-header .theme-toggle:hover { color: #316A43; background: #E9EBEF; border-color: #D7D9DD; }
.theme-toggle { background: transparent; }

.page-main { overflow: clip; }
.home-hero {
  position: relative;
  background: var(--bamboo-deep);
  color: #F8F6F0;
  isolation: isolate;
}
.hero-texture {
  position: absolute;
  inset: 0 0 0 56%;
  z-index: 0;
  background: var(--feature-cover, url("assets/hero-paper-ripples-v1.jpg")) right center / cover no-repeat;
  border-inline-start: 1px solid rgba(248, 246, 240, .14);
  opacity: .13;
  pointer-events: none;
}
.home-hero::before, .home-hero::after {
  position: absolute;
  content: "";
  pointer-events: none;
  border: 1px solid rgba(248, 246, 240, .16);
  border-radius: 50%;
}
.home-hero::before { width: 48vw; height: 20vw; right: -12vw; top: 12%; transform: rotate(-12deg); }
.home-hero::after { width: 34vw; height: 14vw; right: 3vw; bottom: 12%; transform: rotate(-12deg); }
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 48px, var(--content));
  min-height: 620px;
  margin: 0 auto;
  padding: 96px 0 88px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
}
.hero-copy { max-width: 600px; }
.eyebrow {
  display: inline-flex;
  color: var(--amber);
  font-family: var(--font-latin-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  line-height: 1.4;
  text-transform: uppercase;
}
.catalog-eyebrow, .heritage-eyebrow { color: var(--bamboo); }
.hero-title {
  max-width: 11em;
  margin: 22px 0 20px;
  font-family: var(--font-serif);
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1.08;
  text-wrap: balance;
  color: #F8F6F0;
}
.hero-brand-name { margin: 0 0 20px; color: var(--amber); font-family: var(--font-serif); font-size: clamp(25px, 3vw, 38px); font-weight: 500; letter-spacing: .14em; line-height: 1.2; }
.hero-slogan { margin: 18px 0 0; color: var(--amber); font-family: var(--font-serif); font-size: clamp(22px, 2.5vw, 32px); font-weight: 500; letter-spacing: .18em; line-height: 1.25; }
.hero-lead { max-width: 34em; margin: 0; color: var(--bamboo-light); font-size: 18px; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  transition: transform var(--duration) var(--ease), background-color var(--duration) var(--ease), color var(--duration) var(--ease), border-color var(--duration) var(--ease);
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(1px); }
.button--solid { background: var(--amber); color: #1C1E21; }
.button--solid:hover { background: #E9BA6F; }
.button--quiet { border-color: rgba(248, 246, 240, .45); color: #F8F6F0; }
.button--quiet:hover { border-color: var(--paper); background: rgba(248, 246, 240, .08); }
.hero-footnote { margin-top: 26px; color: #B6DABE; font-size: 13px; }
.hero-feature {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: center;
  justify-self: stretch;
  justify-content: center;
  width: 100%;
  padding: 0 0 0 clamp(28px, 4vw, 56px);
  border-inline-start: 1px solid rgba(248, 246, 240, .28);
}
.hero-feature-link { display: flex; flex-direction: column; gap: 18px; align-items: center; width: 100%; color: inherit; }
.hero-feature-link:hover .hero-feature-title { color: var(--amber); }
.hero-feature-cover-wrap { width: min(100%, 340px); aspect-ratio: 1 / 1.419; align-self: center; }
.hero-feature-cover-wrap--empty { display: none; }
.hero-feature-cover {
  width: 100%;
}
.hero-feature-cover img { width: 100%; height: 100%; object-fit: contain; }
.cover-missing {
  display: none !important;
}
.hero-feature-kicker { color: var(--amber); font-size: 12px; letter-spacing: .06em; }
.hero-feature-details { width: min(100%, 340px); align-self: center; }
.hero-feature-title { margin: 8px 0; color: #F8F6F0; font-family: var(--font-serif); font-size: 23px; font-weight: 500; line-height: 1.35; }
.hero-feature-author { margin: 0; color: #B6DABE; font-size: 14px; }
.hero-footnote { color: #B6DABE; }

.section-wrap { width: min(100% - 48px, var(--content)); margin: 0 auto; }
.section-block { padding: 104px 0; }
.section-block + .section-block { border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 42px; }
.section-kicker { margin: 0 0 10px; color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.section-title { margin: 0; font-family: var(--font-serif); font-size: clamp(30px, 4vw, 46px); font-weight: 500; letter-spacing: -.015em; line-height: 1.18; }
.section-intro { max-width: 42em; margin: 14px 0 0; color: var(--ink-sub); font-size: 17px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--bamboo); font-weight: 600; white-space: nowrap; }
.text-link::after { content: "→"; transition: transform var(--duration) var(--ease); }
.text-link:hover::after { transform: translateX(3px); }

.campaign-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: start; }
.campaign-lead { display: grid; grid-template-columns: minmax(220px, 300px) minmax(0, 1fr); gap: 30px; align-items: start; padding-right: clamp(0px, 5vw, 64px); }
.campaign-lead--no-cover { grid-template-columns: minmax(0, 1fr); padding-right: 0; }
.campaign-lead-cover { width: min(100%, 300px); aspect-ratio: 1 / 1.419; }
.campaign-lead-cover img { width: 100%; height: 100%; object-fit: contain; }
.campaign-lead-title { margin: 0 0 16px; font-family: var(--font-serif); font-size: clamp(28px, 3.5vw, 44px); font-weight: 500; line-height: 1.25; }
.campaign-lead-copy { max-width: 38em; margin: 0; color: var(--ink-sub); font-size: 17px; }
.campaign-lead-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 24px; color: var(--ink-sub); font-size: 13px; }
.campaign-books { display: grid; gap: 24px; }
.campaign-book { display: grid; grid-template-columns: 136px 1fr; gap: 20px; align-items: start; padding-top: 20px; border-top: 1px solid var(--line); }
.campaign-book--no-cover { grid-template-columns: minmax(0, 1fr); }
.campaign-book:first-child { padding-top: 0; border-top: 0; }
.campaign-book-cover { width: 136px; aspect-ratio: 1 / 1.419; }
.campaign-book-cover img { width: 100%; height: 100%; object-fit: contain; }
.campaign-book-title { margin: 0 0 7px; font-family: var(--font-serif); font-size: 20px; font-weight: 500; line-height: 1.4; }
.campaign-book-author { margin: 0 0 10px; color: var(--ink-sub); font-size: 14px; }
.campaign-book-action { color: var(--bamboo); font-size: 14px; font-weight: 600; }
.method-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; border-top: 1px solid var(--line); }
.method-item { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 16px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.method-number { color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 12px; letter-spacing: .08em; }
.method-item h3 { margin: 0 0 8px; font-family: var(--font-serif); font-size: 21px; font-weight: 500; line-height: 1.35; }
.method-item p { margin: 0; color: var(--ink-sub); font-size: 15px; line-height: 1.75; }

.path-list { border-top: 1px solid var(--line); }
.path-item { position: relative; display: grid; grid-template-columns: 72px minmax(260px, .75fr) minmax(0, 1.25fr) 24px; gap: 22px; align-items: center; min-height: 122px; padding: 26px 18px 26px 0; border-bottom: 1px solid var(--line); transition: background-color var(--duration) var(--ease); }
.path-item::before { position: absolute; inset-block: 18px; left: 0; width: 3px; content: ""; background: var(--bamboo); transform: scaleY(.35); transform-origin: center; transition: transform var(--duration) var(--ease); }
.path-item:hover, .path-item:focus-visible { background: var(--surface-muted); }
.path-item:hover::before, .path-item:focus-visible::before { transform: scaleY(1); }
.path-number { color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 12px; letter-spacing: .08em; }
.path-title { margin: 0; font-family: var(--font-serif); font-size: 22px; font-weight: 500; line-height: 1.35; }
.path-copy { margin: 0; color: var(--ink-sub); font-size: 15px; }
.path-arrow { color: var(--bamboo); font-size: 20px; }

.catalog-preview { background: var(--surface-muted); }
.shelf-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 28px 16px; }
.book-card { min-width: 0; }
.book-card-link { display: block; height: 100%; padding: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease); }
.book-card-link:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(28, 30, 33, .12); }
.book-card-cover { width: 100%; aspect-ratio: 1 / 1.419; }
.book-card-cover img { width: 100%; height: 100%; object-fit: contain; }
.book-card-body { padding: 13px 2px 2px; }
.book-card-year { color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 11px; letter-spacing: .05em; }
.book-card-title { display: -webkit-box; overflow: hidden; margin: 4px 0 7px; font-family: var(--font-serif); font-size: 17px; font-weight: 500; line-height: 1.45; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.book-card-author { overflow: hidden; color: var(--ink-sub); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.catalog-preview-foot { margin-top: 40px; text-align: center; }

.site-footer { padding: 72px 24px 36px; background: var(--bamboo-deep); color: #B6DABE; }
.footer-inner { width: min(100%, var(--content)); margin: 0 auto; display: flex; justify-content: space-between; gap: 32px; }
.footer-grid { display: grid; grid-template-columns: minmax(260px, 1.2fr) minmax(220px, 1fr) minmax(240px, 1fr) minmax(120px, .5fr); gap: 36px; }
.footer-column, .footer-intro { min-width: 0; }
.footer-intro { padding-inline-end: 8px; }
.footer-column + .footer-column, .footer-links { padding-inline-start: 24px; border-inline-start: 1px solid rgba(248, 246, 240, .2); }
.footer-heading { margin: 0 0 12px; color: #F8F6F0; font-family: var(--font-serif); font-size: 15px; font-weight: 500; }
.footer-address, .footer-facts { margin: 0; font-style: normal; font-size: 13px; line-height: 1.75; }
.footer-address p { margin: 0 0 6px; }
.footer-address a { color: #F8F6F0; text-decoration: underline; text-underline-offset: 3px; }
.footer-address a:hover { color: var(--amber); }
.footer-facts { display: grid; gap: 7px; }
.footer-facts div { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 8px; }
.footer-facts dt { color: #8CBE98; }
.footer-facts dd { margin: 0; }
.footer-source { color: #8CBE98; font-size: 11px; }
.footer-pending { color: var(--amber); }
.footer-title { margin: 0 0 10px; color: #F8F6F0; font-family: var(--font-serif); font-size: 23px; font-weight: 500; letter-spacing: .06em; }
.footer-copy { max-width: 42em; margin: 0; font-size: 13px; line-height: 1.7; }
.footer-links { display: flex; flex-direction: column; flex-wrap: wrap; gap: 8px; align-content: start; justify-content: start; font-size: 13px; }
.footer-links .footer-heading { margin-bottom: 4px; }
.footer-links a:hover { color: var(--amber); }
.footer-note { width: min(100%, var(--content)); margin: 36px auto 0; padding-top: 16px; border-top: 1px solid rgba(248, 246, 240, .2); color: #8CBE98; font-size: 12px; }
.footer-note a { color: #F8F6F0; text-decoration: underline; text-underline-offset: 3px; }
.footer-note a:hover { color: var(--amber); }

[data-theme="dark"] .hero-texture { opacity: .08; }
[data-theme="dark"] .home-hero .hero-lead { color: var(--bamboo-light); }
[data-theme="dark"] .home-hero .hero-footnote,
[data-theme="dark"] .home-hero .hero-feature-author { color: #B6DABE; }

.catalog-page { padding: 72px 0 112px; }
.catalog-hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr); gap: 48px; align-items: end; margin-bottom: 56px; }
.catalog-hero-title { margin: 12px 0 16px; font-family: var(--font-serif); font-size: clamp(40px, 6vw, 72px); font-weight: 400; letter-spacing: -.025em; line-height: 1.08; }
.catalog-hero-copy { max-width: 42em; margin: 0; color: var(--ink-sub); font-size: 17px; }
.catalog-hero-aside { padding-left: 24px; border-left: 2px solid var(--amber); color: var(--ink-sub); font-size: 14px; }
.catalog-hero-aside strong { display: block; margin-bottom: 4px; color: var(--ink); font-family: var(--font-serif); font-size: 25px; font-weight: 500; }
.catalog-toolbar { padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.search-label { display: block; margin-bottom: 8px; color: var(--ink-sub); font-size: 13px; font-weight: 600; }
.search-wrap { position: relative; }
.search-input { width: 100%; padding: 14px 104px 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); font-size: 17px; }
.search-input::placeholder { color: var(--ink-sub); opacity: .85; }
.search-input:focus { border-color: var(--bamboo); outline: 3px solid rgba(221, 170, 85, .35); outline-offset: 2px; }
.search-clear { position: absolute; top: 4px; right: 4px; min-width: 76px; min-height: 44px; padding: 7px 10px; border: 0; border-radius: var(--radius); background: var(--surface-muted); color: var(--bamboo); font-size: 13px; font-weight: 600; }
.search-clear:hover { background: var(--bamboo); color: var(--paper); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; margin-top: 20px; }
.filter-label { color: var(--ink-sub); font-size: 13px; font-weight: 600; }
.filter-list { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-button { min-height: 44px; padding: 7px 10px; border: 1px solid transparent; border-bottom-color: var(--line); border-radius: var(--radius); background: transparent; color: var(--ink-sub); font-size: 13px; transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), background-color var(--duration) var(--ease); }
.filter-button:hover, .filter-button[aria-pressed="true"] { border-color: var(--bamboo); background: var(--bamboo); color: var(--paper); }
.catalog-status { min-height: 24px; margin: 20px 0 24px; color: var(--ink-sub); font-size: 14px; }
.catalog-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 28px 18px; }
.catalog-sections { display: grid; gap: 72px; }
.catalog-section { scroll-margin-top: 96px; animation: section-in 260ms var(--ease) both; }
.catalog-section:nth-child(2) { animation-delay: 35ms; }
.catalog-section:nth-child(3) { animation-delay: 70ms; }
.catalog-section:nth-child(4) { animation-delay: 105ms; }
.catalog-section:nth-child(5) { animation-delay: 140ms; }
.catalog-section:nth-child(6) { animation-delay: 175ms; }
.catalog-section-head { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 20px; align-items: start; margin-bottom: 24px; padding-top: 26px; border-top: 2px solid var(--bamboo); }
.catalog-section-index { color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 16px; letter-spacing: .08em; }
.catalog-section-kicker { margin: 0 0 7px; color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 11px; font-weight: 600; letter-spacing: .08em; }
.catalog-section-title { margin: 0; font-family: var(--font-serif); font-size: clamp(28px, 4vw, 42px); font-weight: 500; line-height: 1.22; }
.catalog-section-intro { max-width: 46em; margin: 10px 0 0; color: var(--ink-sub); font-size: 16px; }
.book-list { border-top: 1px solid var(--line); }
.book-entry { min-width: 0; border-bottom: 1px solid var(--line); }
.book-entry-button { width: 100%; display: grid; grid-template-columns: 52px 72px minmax(0, 1fr) auto; gap: 20px; align-items: center; padding: 20px 0; border: 0; background: transparent; color: inherit; text-align: start; transition: background-color var(--duration) var(--ease); }
.book-entry--no-cover .book-entry-button { grid-template-columns: 52px minmax(0, 1fr) auto; }
.book-entry-button:hover, .book-entry-button:focus-visible { background: var(--surface-muted); }
.book-entry-index { align-self: start; padding-top: 3px; color: var(--bamboo); font-family: var(--font-latin-sans); font-size: 12px; letter-spacing: .05em; }
.book-entry-index small { display: block; margin-top: 3px; color: var(--ink-sub); font-size: 10px; letter-spacing: 0; }
.book-entry-cover { display: block; width: 72px; aspect-ratio: 1 / 1.419; }
.catalog-cover { width: 100%; aspect-ratio: 1 / 1.419; }
.catalog-cover img { width: 100%; height: 100%; object-fit: contain; }
.book-entry-main { display: block; min-width: 0; }
.book-entry-meta { display: block; overflow: hidden; color: var(--ink-sub); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.book-entry-title { display: block; margin-top: 5px; font-family: var(--font-serif); font-size: 21px; font-weight: 500; line-height: 1.35; }
.book-entry-summary { display: block; max-width: 68ch; margin-top: 6px; color: var(--ink-sub); font-family: var(--font-serif); font-size: 14px; line-height: 1.7; }
.book-entry-status { display: block; margin-top: 8px; color: var(--bamboo); font-size: 12px; }
.book-entry-status:not(:empty) { letter-spacing: .01em; }
.book-entry-action { color: var(--bamboo); font-size: 13px; font-weight: 600; white-space: nowrap; }
.catalog-empty { grid-column: 1 / -1; padding: 56px 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.catalog-empty h2 { margin: 0 0 8px; font-family: var(--font-serif); font-size: 28px; font-weight: 500; }
.catalog-empty p { margin: 0; color: var(--ink-sub); }

dialog.book-dialog { width: min(100% - 32px, 1040px); max-height: min(900px, calc(100dvh - 32px)); padding: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); box-shadow: 0 18px 48px rgba(12, 39, 21, .32); }
dialog.book-dialog::backdrop { background: rgba(12, 39, 21, .72); }
.dialog-shell { display: grid; grid-template-columns: minmax(220px, .34fr) minmax(0, .66fr); max-height: min(900px, calc(100dvh - 32px)); overflow: auto; animation: dialog-in 180ms var(--ease) both; }
.dialog-shell--no-cover { grid-template-columns: minmax(0, 1fr); }
.dialog-cover-column { padding: 32px; border-inline-end: 1px solid var(--line); }
.dialog-cover { position: sticky; top: 0; max-width: 260px; aspect-ratio: 1 / 1.419; margin: 0 auto; }
.dialog-cover img { width: 100%; height: 100%; object-fit: contain; }
.dialog-cover-note { margin: 12px 0 0; color: var(--ink-sub); font-size: 12px; }
.dialog-cover-note:empty { display: none; }
.dialog-content { min-width: 0; padding: 32px 36px 40px; }
.dialog-topline { display: flex; justify-content: space-between; align-items: start; gap: 18px; }
.dialog-close { width: 44px; height: 44px; flex: 0 0 auto; border: 1px solid var(--line); border-radius: var(--radius); background: transparent; font-size: 22px; line-height: 1; }
.dialog-close:hover { border-color: var(--bamboo); color: var(--bamboo); }
.dialog-title { margin: 0; font-family: var(--font-serif); font-size: clamp(28px, 4vw, 42px); font-weight: 500; line-height: 1.25; }
.dialog-author { margin: 10px 0 0; color: var(--ink-sub); font-size: 15px; }
.dialog-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 18px 0 0; color: var(--ink-sub); font-size: 13px; }
.dialog-tabs { position: sticky; top: -1px; z-index: 2; display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 32px 0 0; padding-top: 10px; border-bottom: 1px solid var(--line); background: var(--surface); }
.dialog-tab { min-height: 44px; padding: 9px 0; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--ink-sub); font-size: 14px; }
.dialog-tab:hover, .dialog-tab[aria-selected="true"] { border-bottom-color: var(--bamboo); color: var(--bamboo); }
.dialog-pane { padding-top: 28px; }
.dialog-pane[hidden] { display: none; }
.reader-copy { max-width: var(--reading); color: var(--ink); font-family: var(--font-serif); font-size: calc(17px * var(--reader-scale)); line-height: 1.8; text-align: start; }
.reader-copy p { margin: 0 0 1.25em; }
.reader-copy h3 { margin: 2em 0 .7em; font-size: 22px; font-weight: 500; line-height: 1.4; }
.reader-copy ul { margin: 0 0 1.25em; padding-inline-start: 1.4em; }
.reader-copy li { margin: .35em 0; }
.reader-quote { margin: 0 0 28px; padding-inline-start: 18px; border-inline-start: 2px solid var(--amber); color: var(--bamboo); font-family: var(--font-serif); font-size: 24px; line-height: 1.45; }
.reader-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.reader-tool { min-height: 44px; padding: 7px 10px; border: 1px solid var(--line); border-radius: var(--radius); background: transparent; color: var(--ink-sub); font-size: 13px; }
.reader-tool:hover { border-color: var(--bamboo); color: var(--bamboo); }
.dialog-empty { padding: 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-sub); }
.spec-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; margin: 0; }
.spec-list div { padding-top: 12px; border-top: 1px solid var(--line); }
.spec-list dt { color: var(--ink-sub); font-size: 12px; }
.spec-list dd { margin: 4px 0 0; font-size: 15px; }

.heritage-page { padding: 72px 0 112px; }
.heritage-hero { width: min(100% - 48px, var(--content)); margin: 0 auto 88px; padding: 72px 0 64px; border-bottom: 1px solid var(--line); }
.heritage-title { max-width: 12em; margin: 20px 0 18px; font-family: var(--font-serif); font-size: clamp(42px, 7vw, 84px); font-weight: 400; letter-spacing: -.03em; line-height: 1.04; }
.heritage-lead { max-width: 44em; margin: 0; color: var(--ink-sub); font-size: 19px; }
.heritage-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(220px, .35fr); gap: 72px; }
.heritage-article { max-width: var(--reading); }
.heritage-article h2 { margin: 0 0 28px; font-family: var(--font-serif); font-size: 34px; font-weight: 500; line-height: 1.25; }
.heritage-article h3 { margin: 48px 0 12px; font-family: var(--font-serif); font-size: 22px; font-weight: 500; }
.heritage-article p, .heritage-article li { font-family: var(--font-serif); font-size: 17px; line-height: 1.8; }
.heritage-article p { margin: 0 0 1.3em; }
.heritage-article ul { margin: 0 0 1.3em; padding-inline-start: 1.35em; }
.heritage-article li { margin: .55em 0; }
.heritage-quote { margin: 28px 0 10px; padding: 18px 22px; border-inline-start: 3px solid var(--amber); background: var(--surface-muted); color: var(--bamboo); font-family: var(--font-serif); font-size: 21px; line-height: 1.65; }
.heritage-citation { color: var(--ink-sub); font-family: var(--font-sans) !important; font-size: 12px !important; }
.heritage-timeline { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.heritage-timeline li { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 20px; margin: 0; padding: 22px 0; border-bottom: 1px solid var(--line); animation: section-in 260ms var(--ease) both; }
.heritage-timeline li:nth-child(2) { animation-delay: 45ms; }
.heritage-timeline li:nth-child(3) { animation-delay: 90ms; }
.heritage-timeline li:nth-child(4) { animation-delay: 135ms; }
.heritage-year { color: var(--bamboo); font-family: var(--font-latin-serif); font-size: 25px; line-height: 1.2; }
.heritage-timeline strong { font-family: var(--font-serif); font-size: 20px; font-weight: 500; }
.heritage-timeline p { margin: 5px 0 0; font-family: var(--font-serif); font-size: 15px; line-height: 1.75; }
.heritage-timeline-pending { background: var(--bamboo-light); padding-inline: 12px !important; }
.evidence-tag { display: inline-flex; align-items: center; margin-inline-start: 8px; padding: 2px 6px; border: 1px solid currentColor; border-radius: var(--radius); font-family: var(--font-sans); font-size: 11px; line-height: 1.35; white-space: nowrap; }
.evidence-tag--primary { color: var(--bamboo); }
.evidence-tag--secondary { color: var(--history); }
.evidence-tag--internal { color: var(--doctrine); }
.evidence-tag--review { color: var(--amber-deep); }
.source-register { border-top: 1px solid var(--line); }
.source-register-item { display: grid; grid-template-columns: 140px minmax(0, 1fr) auto; gap: 18px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--line); font-family: var(--font-sans); font-size: 13px; line-height: 1.7; }
.source-register-item strong { color: var(--ink); font-family: var(--font-serif); font-size: 16px; font-weight: 500; }
.source-register-item code { overflow-wrap: anywhere; font-size: 12px; }
.heritage-note p { margin: 0; line-height: 1.7; }
.heritage-note { margin: 0; padding: 20px; border-top: 2px solid var(--amber); background: var(--surface-muted); color: var(--ink-sub); font-size: 14px; }
.heritage-note-spaced { margin-top: 24px; }
.heritage-cta { width: 100%; margin-top: 24px; }
.heritage-note strong { display: block; margin-bottom: 8px; color: var(--ink); font-family: var(--font-serif); font-size: 19px; font-weight: 500; }
.heritage-facts { margin-top: 48px; border-top: 1px solid var(--line); }
.heritage-fact { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.heritage-fact dt { color: var(--ink-sub); }
.heritage-fact dd { margin: 0; }
.pending { color: var(--amber-deep); }
[data-theme="dark"] .pending, [data-theme="dark"] .evidence-tag--review { color: var(--amber); }
.heritage-details { margin-top: 36px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.heritage-details summary { padding: 14px 0; color: var(--bamboo); cursor: pointer; font-size: 14px; font-weight: 600; }
.heritage-details p { margin: 0; padding: 0 0 18px; color: var(--ink-sub); font-family: var(--font-sans) !important; font-size: 13px !important; }

.reveal { opacity: 0; transform: translateY(12px); animation: reveal-in 520ms var(--ease) forwards; }
.reveal-delay-1 { animation-delay: 70ms; }
.reveal-delay-2 { animation-delay: 140ms; }
@keyframes reveal-in { to { opacity: 1; transform: translateY(0); } }
@keyframes section-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dialog-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 980px) {
  .hero-inner, .catalog-hero, .campaign-grid, .heritage-grid { grid-template-columns: 1fr; }
  .hero-texture { inset: 52% 0 0; border-inline-start: 0; border-top: 1px solid rgba(248, 246, 240, .14); }
  .hero-inner { min-height: 0; gap: 56px; }
  .hero-feature { align-self: start; align-items: flex-start; justify-self: start; width: min(100%, 420px); padding: 32px 0 0; border-inline-start: 0; border-top: 1px solid rgba(248, 246, 240, .28); }
  .hero-feature-link { align-items: flex-start; }
  .hero-feature-cover-wrap, .hero-feature-details { align-self: start; }
  .method-list { grid-template-columns: 1fr; }
  .shelf-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .heritage-grid { gap: 44px; }
  .heritage-note { max-width: 68ch; }
}
@media (max-width: 720px) {
  .header-inner, .section-wrap, .hero-inner, .heritage-hero { width: min(100% - 32px, var(--content)); }
  .header-inner { min-height: 64px; gap: 12px; }
  .site-brand img { width: 104px; height: auto; }
  .site-nav { gap: 0; }
  .site-nav a { padding: 6px 4px; font-size: 11px; }
  .theme-toggle { padding: 6px 4px; font-size: 11px; }
  .hero-inner { padding: 68px 0 64px; }
  .hero-title { font-size: clamp(38px, 12vw, 60px); }
  .hero-brand-name { margin-bottom: 14px; font-size: 25px; letter-spacing: .1em; }
  .hero-slogan { font-size: 22px; letter-spacing: .12em; }
  .hero-lead { font-size: 16px; }
  .section-block { padding: 72px 0; }
  .section-head { display: block; margin-bottom: 30px; }
  .section-head .text-link { margin-top: 18px; }
  .path-item { grid-template-columns: 42px minmax(0, 1fr) 18px; gap: 12px; }
  .path-copy { grid-column: 2 / -1; }
  .shelf-grid, .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 12px; }
  .catalog-sections { gap: 48px; }
  .catalog-section-head { grid-template-columns: 42px minmax(0, 1fr); gap: 12px; padding-top: 20px; }
  .catalog-section-title { font-size: 29px; }
  .catalog-section-intro { font-size: 15px; }
  .book-entry-button { grid-template-columns: 34px 56px minmax(0, 1fr); gap: 12px; align-items: start; padding: 16px 0; }
  .book-entry--no-cover .book-entry-button { grid-template-columns: 34px minmax(0, 1fr); }
  .book-entry-cover { width: 56px; }
  .book-entry-title { font-size: 18px; }
  .book-entry-summary { font-size: 13px; }
  .book-entry-action { grid-column: 3; margin-top: 6px; }
  .book-entry--no-cover .book-entry-action { grid-column: 2; }
  .catalog-page, .heritage-page { padding-top: 48px; }
  .catalog-hero { gap: 28px; margin-bottom: 36px; }
  .catalog-hero-aside { padding-left: 16px; }
  .hero-feature { gap: 16px; }
  .hero-feature-cover-wrap, .hero-feature-details { width: min(100%, 280px); }
  .campaign-lead { grid-template-columns: minmax(150px, 220px) minmax(0, 1fr); gap: 20px; padding-right: 0; }
  .campaign-lead-cover { width: min(100%, 220px); }
  .campaign-book { grid-template-columns: 104px 1fr; }
  .campaign-book-cover { width: 104px; }
  .dialog-shell { grid-template-columns: 1fr; }
  .dialog-cover-column { padding: 20px; border-inline-end: 0; border-bottom: 1px solid var(--line); }
  .dialog-cover { position: static; max-width: 220px; margin: 0 auto; }
  .dialog-content { padding: 24px 20px 32px; }
  .dialog-tabs { gap: 4px 14px; overflow-x: auto; flex-wrap: nowrap; }
  .dialog-tab { flex: 0 0 auto; font-size: 13px; }
  .spec-list { grid-template-columns: 1fr; }
  .heritage-hero { margin-bottom: 56px; padding: 48px 0 44px; }
  .heritage-title { font-size: clamp(40px, 13vw, 64px); }
  .heritage-lead { font-size: 17px; }
  .heritage-article h2 { font-size: 29px; }
  .heritage-fact { grid-template-columns: 1fr; gap: 2px; }
  .footer-inner { display: block; }
  .footer-grid { display: block; }
  .footer-column, .footer-links { margin-top: 28px; padding-inline-start: 0; border-inline-start: 0; }
  .footer-links { justify-content: start; }
  .heritage-timeline li { grid-template-columns: 74px minmax(0, 1fr); gap: 12px; }
  .heritage-year { font-size: 21px; }
  .source-register-item { grid-template-columns: 1fr; gap: 4px; }
  .source-register-item .evidence-tag { width: fit-content; margin-inline-start: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}
@media (max-width: 520px) {
  .hero-feature { align-items: stretch; }
  .hero-feature-cover-wrap, .hero-feature-details { width: min(100%, 220px); align-self: start; }
  .campaign-lead { grid-template-columns: 1fr; gap: 20px; }
  .campaign-lead-cover { width: min(100%, 220px); }
}

/* ==========================================================================
   大千出版社官網概念 DEMO 橫幅與購書導引
   ========================================================================== */
.demo-notice-bar {
  background: #F4F1EA;
  border-bottom: 1px solid rgba(49, 106, 67, 0.2);
  font-size: 0.85rem;
  color: var(--color-ink-muted, #555);
  padding: 8px 16px;
  line-height: 1.5;
}
[data-theme="dark"] .demo-notice-bar {
  background: #141E17;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #AAA;
}
.demo-notice-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.demo-notice-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: #316A43;
  color: #FFF;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}
.demo-notice-text {
  flex: 1;
  min-width: 260px;
}
.demo-notice-text strong {
  color: var(--color-ink, #1C1E21);
}
.demo-return-link {
  color: #316A43;
  font-weight: 600;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(49, 106, 67, 0.3);
  background: #FFF;
  white-space: nowrap;
  transition: all 0.2s ease;
}
[data-theme="dark"] .demo-return-link {
  background: #1A261D;
  color: #7EC994;
  border-color: rgba(126, 201, 148, 0.3);
}
.demo-return-link:hover {
  background: #316A43;
  color: #FFF;
}