/* roulang page: index */
:root {
  --rose: #C73E66;
  --rose-soft: rgba(199, 62, 102, .28);
  --apricot: #E39B6A;
  --pine: #3E6B58;
  --ink: #2C2426;
  --muted: rgba(44, 36, 38, .78);
  --paper: #F3E6D8;
  --paper-2: #EAD9C8;
  --paper-3: #FBF6F0;
  --plum: #3A2A31;
  --line: rgba(44, 36, 38, .16);
  --shadow: 0 10px 24px rgba(58, 42, 49, .08);
  --radius: 18px;
  --max: 1120px;
  --bs-primary: #C73E66;
  --bs-body-color: #2C2426;
  --bs-body-bg: #F3E6D8;
  --bs-link-color: #C73E66;
  --bs-link-hover-color: #2C2426;
  --bs-border-radius: 18px;
  --bs-border-radius-pill: 999px;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 .2rem rgba(62, 107, 88, .25);
  --bs-accordion-active-color: #2C2426;
  --bs-accordion-active-bg: #F7EBDF;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; color-scheme: light; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(58, 42, 49, .04) .7px, transparent .7px);
  background-size: 13px 13px;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
}
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--rose); text-decoration: none; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}
::selection { background: var(--rose-soft); color: var(--ink); }
h1, h2, h3, h4 {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  margin: 0;
}
p { margin: 0 0 12px; }
.container { max-width: var(--max); }
@media (min-width: 1200px) {
  .container { max-width: var(--max); }
}
.site-header {
  position: sticky;
  top: 14px;
  z-index: 40;
  padding: 0 14px;
  margin-top: 14px;
}
.notebook-nav { padding: 0; background: transparent; }
.nav-shell {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 6px 18px;
  background: rgba(243, 230, 216, .94);
  border: 1px solid rgba(44, 36, 38, .28);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.brand {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: .04em;
  white-space: nowrap;
  padding: 0;
  margin: 0;
}
.brand:hover { color: var(--rose); }
.nav-scroll {
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: 100%;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.notebook-nav .navbar-nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.notebook-nav .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}
.notebook-nav .nav-link:hover {
  color: var(--ink);
  background: rgba(227, 155, 106, .35);
}
.notebook-nav .nav-link.active {
  color: var(--rose);
  background-image: linear-gradient(transparent 62%, rgba(199, 62, 102, .35) 0);
  font-weight: 700;
}
.block { padding: 80px 0; }
.s-a { background: transparent; }
.s-b { background: rgba(234, 217, 200, .72); }
.s-c { background: rgba(251, 246, 240, .78); }
.s-d { background: #E7D3C4; }
.s-dark { background: var(--plum); color: #F3E6D8; }
.s-dark h2, .s-dark h3 { color: #F3E6D8; }
.s-dark .sec-lead { color: rgba(243, 230, 216, .86); }
.sec-title { font-size: 34px; }
.sec-lead { margin: 12px 0 26px; max-width: 68ch; color: var(--muted); }
.mark {
  background-image: linear-gradient(transparent 62%, rgba(199, 62, 102, .38) 62%, rgba(199, 62, 102, .38) 92%, transparent 92%);
}
.kicker {
  display: inline-block;
  margin-bottom: 8px;
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  letter-spacing: .08em;
}
.sub { font-size: 18px; margin-bottom: 14px; }
.lead-copy { max-width: 68ch; color: var(--ink); margin-bottom: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.btn-rose, .btn-ink {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn-rose { background: var(--rose); color: #fff; }
.btn-rose:hover, .btn-rose:focus-visible {
  background: #2C2426;
  color: #F3E6D8;
  transform: translateY(-2px);
}
.btn-rose:active { transform: translateY(0); background: #1a1216; color: #F3E6D8; }
.btn-ink { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ink:hover, .btn-ink:focus-visible {
  background: #2C2426;
  color: #F3E6D8;
  transform: translateY(-2px);
}
.sheet {
  position: relative;
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 34px 32px 28px 52px;
}
.sheet::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 18px;
  bottom: 18px;
  border-left: 2px dotted rgba(199, 62, 102, .6);
}
.ba {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 8px;
}
.ba-card {
  background: #fffaf6;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  box-shadow: var(--shadow);
}
.ba-card.after { background: #F8EFE4; border-color: rgba(62, 107, 88, .35); }
.ba-label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(227, 155, 106, .4);
  font-weight: 700;
  margin-bottom: 10px;
}
.ba-card.after .ba-label { background: rgba(62, 107, 88, .18); color: var(--pine); }
.ba-list { list-style: none; padding: 0; margin: 10px 0 0; }
.ba-list li { position: relative; padding-left: 16px; margin: 6px 0; }
.ba-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--apricot);
  position: absolute;
  left: 0;
  top: .72em;
}
.index-row { display: flex; gap: 14px; align-items: stretch; }
.index-tab {
  flex: 1;
  display: block;
  color: var(--ink);
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-bottom: 4px solid var(--rose);
  border-radius: 18px 18px 10px 10px;
  padding: 18px 16px 16px;
  box-shadow: var(--shadow);
  min-height: 44px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.index-tab:nth-child(2) { transform: translateY(12px); border-bottom-color: var(--apricot); }
.index-tab:nth-child(3) { transform: translateY(5px); border-bottom-color: var(--pine); }
.index-tab:hover { color: var(--ink); transform: translateY(-2px); box-shadow: 0 14px 28px rgba(58, 42, 49, .12); }
.index-tab h3 { font-size: 22px; margin-bottom: 8px; }
.index-tab p { margin: 0; color: var(--muted); }
.folds {
  display: grid;
  grid-template-columns: 1.35fr .82fr 1.08fr;
  gap: 16px;
  align-items: stretch;
}
.fold {
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 20px 18px;
  position: relative;
}
.fold::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(225deg, var(--paper-2), var(--paper-3) 55%);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.fold h3 { font-size: 26px; margin-bottom: 10px; }
.fold p { margin: 0; }
.fold-b { background: #F6E4D2; }
.fold-c { background: #F7F1E8; }
.pine-rule {
  width: 42px;
  height: 2px;
  background: var(--pine);
  margin: 12px 0;
}
.topic {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 18px;
  align-items: start;
}
.topic-main, .margin-note, .sticky, .case, .ticket, .slip, .news-item, .quote-col blockquote, .catalog-board {
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.topic-main { padding: 28px 26px; }
.topic-main h3 { font-size: 28px; margin-bottom: 12px; }
.margin-note {
  padding: 18px 16px;
  background: #F8E7C9;
  border-left: 4px solid var(--pine);
}
.margin-note .eyebrow { font-weight: 700; color: var(--pine); margin-bottom: 6px; }
.scene-list { display: flex; flex-direction: column; gap: 14px; max-width: 720px; }
.sticky {
  padding: 16px 18px;
  background: #F8E7C9;
  border-left: 4px solid var(--pine);
}
.sticky:nth-child(2) { transform: rotate(-.5deg); margin-left: 28px; }
.sticky:nth-child(3) { margin-left: 8px; }
.sticky:nth-child(4) { transform: rotate(.4deg); margin-left: 36px; }
.sticky h3 { font-size: 20px; margin-bottom: 4px; }
.sticky p { margin: 0; }
.timeline {
  border-left: 2px solid var(--pine);
  margin-left: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tl-item { position: relative; padding: 0 0 16px 20px; }
.tl-item::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--rose);
  border: 2px solid #F3E6D8;
  position: absolute;
  left: -7px;
  top: 8px;
}
.tl-item a { font-family: "Noto Serif SC", serif; font-size: 22px; font-weight: 700; color: var(--ink); }
.tl-item a:hover { color: var(--rose); }
.tl-date { display: block; color: var(--pine); font-weight: 700; }
.stage {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 18px;
  align-items: center;
}
.wire {
  background: #FBF6F0;
  color: var(--ink);
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid rgba(243, 230, 216, .3);
}
.wire-top, .wire-mid, .wire-side {
  border: 1px dashed rgba(44, 36, 38, .28);
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
}
.wire-grid { display: grid; grid-template-columns: 1.4fr .7fr; gap: 10px; }
.wire-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(199, 62, 102, .16);
  color: var(--rose);
  font-weight: 700;
  font-size: 14px;
}
.blur-line {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(44, 36, 38, .2);
  filter: blur(2px);
  margin-top: 8px;
}
.blur-line.short { width: 62%; }
.blur-line.mid { width: 84%; }
.side-note { color: rgba(243, 230, 216, .9); }
.table-scroll { overflow-x: auto; border-radius: var(--radius); }
.compare {
  width: 100%;
  min-width: 680px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.compare th, .compare td {
  text-align: left;
  vertical-align: top;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}
.compare th {
  font-family: "Noto Serif SC", serif;
  background: #F6E4D2;
  font-size: 18px;
}
.compare tr:last-child td { border-bottom: 0; }
.compare tbody tr:hover td { background: rgba(227, 155, 106, .16); }
.cases { display: flex; flex-direction: column; gap: 14px; }
.case { padding: 18px 22px; max-width: 760px; }
.case:nth-child(odd) { margin-right: auto; }
.case:nth-child(even) { margin-left: auto; }
.case h3 { font-size: 24px; margin-bottom: 6px; }
.case h3 a { color: inherit; }
.case h3 a:hover { color: var(--rose); }
.case p { margin: 0; }
.tickets {
  display: grid;
  grid-template-columns: 1fr 1.12fr 1fr;
  gap: 16px;
  align-items: stretch;
}
.ticket { padding: 22px 20px 18px; position: relative; }
.ticket.is-hot {
  border: 2px solid var(--rose);
  background: #fffaf6;
  transform: translateY(-10px);
}
.ticket-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--rose);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 8px;
}
.price {
  font-family: "Noto Serif SC", serif;
  font-size: 40px;
  line-height: 1.1;
  margin: 8px 0;
}
.price span { font-size: 16px; font-family: "Noto Sans SC", sans-serif; font-weight: 500; }
.ticket p { margin: 0; }
.wall {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
}
.slip {
  padding: 16px 16px 14px;
  background: #F8E7C9;
}
.slip:nth-child(1) { transform: rotate(-1.4deg); }
.slip:nth-child(2) { transform: rotate(1.2deg); margin-top: 26px; background: #FBF6F0; }
.slip:nth-child(3) { transform: rotate(.6deg); }
.slip:nth-child(4) { transform: rotate(-.8deg); margin-top: 18px; background: #F3D9C4; }
.slip p { margin: 0; }
.quote-col { max-width: 700px; display: flex; flex-direction: column; gap: 14px; }
.quote-col blockquote {
  margin: 0;
  padding: 14px 16px 12px 18px;
  border-left: 4px solid var(--apricot);
}
.quote-col p { margin: 0 0 6px; font-family: "Noto Serif SC", serif; font-size: 18px; line-height: 1.7; }
.quote-col cite { font-style: normal; color: var(--pine); font-weight: 700; }
.catalog-board {
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 18px;
  align-items: end;
}
.catalog-board h3 { font-size: 24px; margin-bottom: 6px; }
.catalog-board p { margin: 0; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px 16px;
  align-items: start;
}
.news-item time { color: var(--pine); font-weight: 700; }
.news-item h3 { font-size: 22px; margin-bottom: 4px; }
.news-item p { margin: 0; }
.accordion { --bs-accordion-border-color: rgba(44, 36, 38, .16); --bs-accordion-btn-focus-box-shadow: 0 0 0 .18rem rgba(62, 107, 88, .28); }
.accordion-item {
  background: var(--paper-3);
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  overflow: hidden;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.accordion-button {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--paper-3);
  min-height: 44px;
  box-shadow: none;
}
.accordion-button:not(.collapsed) {
  color: var(--ink);
  background: #F7EBDF;
  box-shadow: none;
}
.accordion-button:focus { box-shadow: 0 0 0 .18rem rgba(62, 107, 88, .28); border-color: transparent; }
.accordion-button::after { filter: grayscale(1) contrast(.6); }
.accordion-body { color: var(--ink); line-height: 1.8; }
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
  border: 1px solid rgba(243, 230, 216, .22);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: #2f2228;
}
.cta-inner .sec-lead { margin-bottom: 0; }
.site-footer {
  padding: 28px 0 36px;
  background: #E7D3C4;
  border-top: 1px solid var(--line);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}
.footer-brand {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--ink);
}
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink);
  font-weight: 500;
}
.footer-links a:hover { color: var(--rose); }
.legal { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
@media (max-width: 1024px) {
  .sec-title { font-size: 30px; }
  .stage, .catalog-board { grid-template-columns: 1fr; }
  .ticket.is-hot { transform: none; }
}
@media (max-width: 767.98px) {
  .block { padding: 40px 0; }
  h1 { font-size: 30px; }
  .sec-title { font-size: 26px; }
  .nav-shell { border-radius: 28px; padding: 8px 10px; }
  .brand { font-size: 15px; }
  .sheet { padding: 24px 16px 18px 28px; }
  .sheet::before { left: 12px; }
  .ba, .folds, .topic, .tickets, .wall, .index-row, .news-item { display: grid; grid-template-columns: 1fr; }
  .index-tab, .index-tab:nth-child(2), .index-tab:nth-child(3),
  .sticky, .slip, .case { transform: none; margin: 0; }
  .case { max-width: none; }
  .cta-inner { display: block; }
  .cta-inner .btn-rose { margin-top: 16px; }
  .hero-actions { display: grid; }
  .stage { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  h1 { font-size: 28px; }
  .sec-title { font-size: 24px; }
  .price { font-size: 34px; }
  .topic-main h3, .tl-item a, .case h3, .news-item h3 { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --rose: #C73E66;
  --rose-soft: rgba(199, 62, 102, .28);
  --apricot: #E39B6A;
  --pine: #3E6B58;
  --ink: #2C2426;
  --muted: rgba(44, 36, 38, .78);
  --paper: #F3E6D8;
  --paper-2: #EAD9C8;
  --paper-3: #FBF6F0;
  --plum: #3A2A31;
  --line: rgba(44, 36, 38, .16);
  --shadow: 0 10px 24px rgba(58, 42, 49, .08);
  --radius: 18px;
  --max: 1120px;
  --bs-primary: #C73E66;
  --bs-body-color: #2C2426;
  --bs-body-bg: #F3E6D8;
  --bs-link-color: #C73E66;
  --bs-link-hover-color: #2C2426;
  --bs-border-radius: 18px;
  --bs-border-radius-pill: 999px;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 .2rem rgba(62, 107, 88, .25);
  --bs-accordion-active-color: #2C2426;
  --bs-accordion-active-bg: #F7EBDF;
}
/* roulang page: category1 */
html { scroll-behavior: smooth; scroll-padding-top: 108px; color-scheme: light; }
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(58, 42, 49, .045) .7px, transparent .7px);
  background-size: 13px 13px;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
}
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--rose); text-decoration: none; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}
h1, h2, h3, h4 {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 12px;
}
p { margin: 0 0 12px; }
.container { max-width: var(--max); }
.site-header {
  position: sticky;
  top: 14px;
  z-index: 40;
  padding: 0 14px;
  margin-top: 14px;
}
.notebook-nav {
  --bs-navbar-color: #2C2426;
  --bs-navbar-hover-color: #2C2426;
  --bs-navbar-active-color: #C73E66;
  --bs-navbar-brand-color: #2C2426;
  --bs-navbar-brand-hover-color: #C73E66;
  --bs-navbar-toggler-border-color: transparent;
  padding: 0;
  background: transparent !important;
  box-shadow: none;
}
.nav-shell {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 6px 18px;
  background: rgba(243, 230, 216, .94);
  border: 1px solid rgba(44, 36, 38, .28);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.brand {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: .04em;
  white-space: nowrap;
  padding: 0;
  margin: 0;
}
.brand:hover { color: var(--rose); }
.nav-scroll {
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: 100%;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.notebook-nav .navbar-nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.notebook-nav .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}
.notebook-nav .nav-link:hover {
  color: var(--ink);
  background: rgba(227, 155, 106, .35);
}
.notebook-nav .nav-link.active {
  color: var(--rose);
  background-image: linear-gradient(transparent 62%, rgba(199, 62, 102, .35) 0);
  font-weight: 700;
}
.page-section { padding: 80px 0; }
.page-section.band { background: rgba(251, 246, 240, .72); }
.page-section.wash { background: rgba(234, 217, 200, .45); }
.sec-title { font-size: 34px; }
.sec-lead { margin: 0 0 26px; max-width: 68ch; color: var(--muted); }
.hl {
  background-image: linear-gradient(transparent 62%, rgba(199, 62, 102, .35) 0);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin-bottom: 10px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(62, 107, 88, .14);
  color: var(--pine);
  font-weight: 700;
  font-size: 14px;
}
.chapter-grid {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 22px;
  align-items: stretch;
}
.chapter-sheet {
  padding: 36px 34px 30px;
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 8px solid var(--rose);
}
.chapter-title { font-size: 46px; margin-bottom: 8px; }
.chapter-sub { font-size: 18px; color: var(--ink); margin-bottom: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn-rose, .btn-ink, .chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn-rose { background: var(--rose); color: #fff; }
.btn-rose:hover, .btn-rose:focus-visible {
  background: #2C2426;
  color: #F3E6D8;
  transform: translateY(-2px);
}
.btn-rose:active { transform: translateY(0); background: #1a1216; color: #F3E6D8; }
.btn-ink { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ink:hover, .btn-ink:focus-visible {
  background: #2C2426;
  color: #F3E6D8;
  transform: translateY(-2px);
}
.chapter-tab {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  padding: 26px 22px;
  border-radius: var(--radius);
  background: var(--plum);
  color: #F3E6D8;
  box-shadow: var(--shadow);
}
.chapter-tab .tab-kicker {
  color: var(--apricot);
  font-weight: 700;
  letter-spacing: .18em;
}
.chapter-tab strong {
  display: block;
  margin: 18px 0 8px;
  font-family: "Noto Serif SC", serif;
  font-size: 40px;
  line-height: 1.2;
}
.chapter-tab ul { list-style: none; margin: 18px 0 0; padding: 0; }
.chapter-tab li {
  padding: 8px 0;
  border-top: 1px solid rgba(243, 230, 216, .18);
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.chip {
  padding: 0 18px;
  color: var(--ink);
  background: #fffaf6;
  border: 1px solid var(--line);
}
.chip:hover, .chip:focus-visible {
  transform: translateY(-2px);
  background: rgba(227, 155, 106, .35);
}
.chip.is-on {
  background: var(--rose);
  color: #fff;
  border-color: var(--rose);
}
.note-board {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 16px;
  align-items: start;
}
.note-card, .margin-note, .topic-main, .ticket, .sticky, .quote-slip, .news-item {
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.note-card {
  padding: 20px 20px 16px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.note-card:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(58, 42, 49, .1); }
.note-card.feature { min-height: 280px; background: #fffaf6; }
.note-card.mid { min-height: 210px; }
.note-card h3 { font-size: 24px; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin: 0 8px 10px 0;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(199, 62, 102, .14);
  color: var(--rose);
  font-size: 14px;
  font-weight: 700;
}
.tag.pine { background: rgba(62, 107, 88, .14); color: var(--pine); }
.tag.apricot { background: rgba(227, 155, 106, .35); color: var(--ink); }
.meta-line { color: var(--muted); font-size: 14px; margin: 0; }
.more-wrap { margin: 22px 0 0; }
.margin-layout {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
  align-items: start;
}
.topic-main { padding: 28px 26px; }
.topic-main h3 { font-size: 28px; }
.side-stack { display: flex; flex-direction: column; gap: 12px; }
.margin-note {
  display: block;
  padding: 16px 16px 14px;
  color: var(--ink);
}
.margin-note:hover { color: var(--ink); transform: translateY(-2px); }
.margin-note .eyebrow { margin-bottom: 6px; }
.ticket {
  margin-top: 16px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: 12px;
  align-items: center;
  background:
    linear-gradient(90deg, transparent 12px, rgba(199, 62, 102, .45) 12px, rgba(199, 62, 102, .45) 16px, transparent 16px),
    var(--paper-3);
}
.ticket h3 { margin-bottom: 4px; }
.scene-row {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  scroll-snap-type: x mandatory;
}
.sticky {
  flex: 0 0 250px;
  min-height: 180px;
  padding: 18px 16px;
  scroll-snap-align: start;
  background: #fffaf6;
}
.sticky:nth-child(2) { transform: rotate(-1.2deg); }
.sticky:nth-child(3) { background: #F8EFE4; }
.sticky:nth-child(4) { transform: rotate(1deg); }
.sticky h3 { font-size: 22px; }
.quote-col { max-width: 760px; display: flex; flex-direction: column; gap: 12px; }
.quote-slip {
  margin: 0;
  padding: 16px 18px 14px 20px;
  border-left: 6px solid var(--apricot);
}
.quote-slip p { font-family: "Noto Serif SC", serif; font-size: 20px; line-height: 1.6; }
.quote-slip cite { display: block; color: var(--pine); font-style: normal; font-weight: 700; }
.news-item {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 16px;
  padding: 16px 18px;
  margin-bottom: 12px;
  color: var(--ink);
  transition: transform .2s ease;
}
.news-item:hover { color: var(--ink); transform: translateY(-2px); }
.news-date { color: var(--pine); font-weight: 700; }
.news-item h3 { font-size: 22px; margin-bottom: 4px; }
.accordion { --bs-accordion-border-color: rgba(44, 36, 38, .16); --bs-accordion-btn-color: #2C2426; --bs-accordion-bg: #FBF6F0; --bs-accordion-active-bg: #F7EBDF; --bs-accordion-active-color: #2C2426; --bs-accordion-border-radius: 18px; }
.accordion-item {
  border: 1px solid var(--line);
  border-radius: 18px !important;
  overflow: hidden;
  margin-bottom: 12px;
  background: var(--paper-3);
  box-shadow: var(--shadow);
}
.accordion-button {
  font-weight: 700;
  min-height: 52px;
  background: var(--paper-3);
  color: var(--ink);
  box-shadow: none;
}
.accordion-button:not(.collapsed) {
  background: #F7EBDF;
  color: var(--ink);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: 0 0 0 .2rem rgba(62, 107, 88, .25); }
.accordion-body { color: var(--ink); }
.site-footer {
  margin-top: 10px;
  padding: 36px 0 48px;
  background: var(--plum);
  color: #F3E6D8;
}
.site-footer a { color: #F3E6D8; }
.site-footer a:hover { color: var(--apricot); }
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}
.footer-brand {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 20px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.legal { margin: 18px 0 0; color: rgba(243, 230, 216, .78); font-size: 14px; }
@media (max-width: 1024px) {
  .chapter-title { font-size: 36px; }
  .sec-title { font-size: 30px; }
  .page-section { padding: 64px 0; }
}
@media (max-width: 768px) {
  .site-header { top: 8px; }
  .page-section { padding: 40px 0; }
  .chapter-title, .sec-title { font-size: 28px; }
  .chapter-grid, .note-board, .margin-layout, .ticket, .news-item { grid-template-columns: 1fr; }
  .chapter-tab strong { font-size: 32px; }
  .note-card.feature, .note-card.mid, .sticky { min-height: 0; }
  .sticky, .sticky:nth-child(2), .sticky:nth-child(4) { transform: none; }
}
@media (max-width: 520px) {
  .brand { font-size: 15px; }
  .nav-shell { padding-left: 12px; gap: 6px; }
  .chapter-sheet { padding: 24px 18px; }
  .hero-actions .btn-rose, .hero-actions .btn-ink { width: 100%; }
  .news-item h3, .note-card h3 { font-size: 22px; }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}