/* roulang page: index */
:root {
  --bg: #F3F6FA;
  --paper: #FFFFFF;
  --ink: #1B2330;
  --muted: #5C6B7A;
  --steel: #2E5C86;
  --steel-deep: #244a6c;
  --line: #D5DEE8;
  --copper: #B08968;
  --moss: #3F6B52;
  --shadow: 0 10px 28px rgba(27, 35, 48, .08);
  --shadow-soft: 0 6px 14px rgba(27, 35, 48, .05);
  --radius: 12px;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; border: 0; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, p, ul, ol, figure, blockquote { margin: 0; }
h1, h2, .logo, .quote-main p {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--ink);
}
h1 { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.28; letter-spacing: 0; }
h2 { font-size: clamp(22px, 2.3vw, 30px); line-height: 1.35; margin: 0 0 14px; }
h3 { font-family: var(--sans); font-size: 18px; line-height: 1.45; font-weight: 700; color: var(--ink); }
p { margin: 0; }
a { color: var(--steel); text-decoration: none; text-underline-offset: 3px; transition: color .18s ease; }
a:hover { color: var(--steel-deep); text-decoration: underline; }
a:active { color: var(--steel-deep); }
::selection { background: rgba(46, 92, 134, .16); }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.wrap > .row, .section .row { max-width: 100%; margin-left: 0; margin-right: 0; }
.prose { max-width: 44rem; color: var(--ink); margin: 0 0 18px; }
.muted { color: var(--muted); }
.section { padding: 88px 0; }
.section.paper { background: var(--paper); }
.section.fog { background: var(--bg); }
.kicker {
  margin: 0 0 12px;
  color: var(--steel);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .16em;
}
.lead { max-width: 40rem; margin: 14px 0 22px; font-size: 17px; line-height: 1.85; color: var(--ink); }
.tick-row { background: var(--paper); border-bottom: 1px solid var(--line); }
.tick-inner {
  min-height: 38px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
}
.hair { width: 36px; height: 0.5px; background: var(--copper); display: block; }
.mast { background: var(--paper); border-bottom: 1px solid var(--line); }
.mast-grid { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px 18px; padding: 18px 0 14px; }
.logo {
  order: 1;
  flex: 1 1 280px;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.22;
  text-decoration: none;
  border-bottom: 2px solid var(--steel);
  padding-bottom: 4px;
}
.logo:hover, .logo:focus { color: var(--ink); text-decoration: none; }
.title-bar {
  order: 2;
  background: transparent;
  padding: 0;
  color: var(--ink);
  flex: 0 0 auto;
}
.title-bar-title { color: var(--ink); font-size: 14px; font-weight: 500; }
.menu-icon::after { background: var(--ink); box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink); }
.channels.top-bar, .channels.top-bar ul, .channels .menu { background: transparent; }
.channels.top-bar { order: 3; width: auto; padding: 0; flex: 1 1 100%; }
.channels .menu { margin: 0; }
.channels .menu > li > a {
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 12px;
  line-height: 1.4;
}
.channels .menu > li > a:hover { color: var(--steel); text-decoration: underline; }
.channels .is-current > a {
  color: var(--ink);
  text-decoration: none;
  box-shadow: inset 0 -2px 0 var(--copper);
}
.text-back {
  order: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--steel);
  border-radius: 8px;
  background: var(--paper);
  color: var(--steel);
  font-weight: 500;
  text-decoration: none;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.text-back:hover { background: var(--bg); color: var(--steel-deep); text-decoration: none; transform: translateY(-1px); }
.text-back:active { transform: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--steel);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn:hover { text-decoration: none; }
.btn:focus, .text-back:focus, .channels a:focus, summary:focus, .stat:focus, .cal a:focus, .more:focus {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}
.btn:active, .text-back:active { transform: none; }
.btn-steel { background: var(--steel); color: #fff; }
.btn-steel:hover, .btn-steel:focus { background: var(--steel-deep); color: #fff; transform: translateY(-1px); }
.btn-steel:active { background: #1d3e5c; color: #fff; transform: none; }
.btn-ghost { background: var(--paper); color: var(--steel); }
.btn-ghost:hover, .btn-ghost:focus { background: var(--bg); color: var(--steel-deep); transform: translateY(-1px); }
.btn-ghost:active { transform: none; }
.hero-actions, .close-actions, .hour-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.hero-side { display: flex; gap: 16px; align-items: stretch; }
.vscale { list-style: none; margin: 0; padding: 8px 0; display: flex; flex-direction: column; justify-content: space-between; min-width: 74px; }
.vscale li { color: var(--ink); font-size: 13px; line-height: 1.4; }
.vscale span { display: block; color: var(--copper); font-size: 12px; letter-spacing: .08em; }
.shot {
  position: relative;
  margin: 0;
  flex: 1;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.shot img { width: 100%; object-fit: cover; background: var(--bg); }
.ratio-16 { aspect-ratio: 16 / 9; }
.ratio-43 { aspect-ratio: 4 / 3; }
.shot figcaption { padding: 10px 14px 12px; color: var(--muted); font-size: 13px; }
.tick { position: absolute; width: 12px; height: 12px; border: 0 solid var(--copper); pointer-events: none; }
.tick.tl { top: 10px; left: 10px; border-top-width: 1px; border-left-width: 1px; }
.tick.tr { top: 10px; right: 10px; border-top-width: 1px; border-right-width: 1px; }
.tick.bl { bottom: 38px; left: 10px; border-bottom-width: 1px; border-left-width: 1px; }
.tick.br { bottom: 38px; right: 10px; border-bottom-width: 1px; border-right-width: 1px; }
.card {
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.contrast { list-style: none; margin: 8px 0 0; padding: 0; border-top: 0.5px solid var(--line); }
.contrast li { display: grid; grid-template-columns: 96px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.contrast b { color: var(--copper); font-size: 13px; font-weight: 500; line-height: 1.6; }
.mini-steps { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; margin: 0 0 16px; padding: 0; }
.mini-steps li { color: var(--ink); font-weight: 500; }
.mini-steps span, .num { color: var(--copper); letter-spacing: .08em; font-size: 13px; font-weight: 500; }
.wide-card p { margin-top: 8px; }
.wide-card .btn { margin-top: 16px; }
.num { display: block; margin-bottom: 8px; }
.step-card h3, .metric h3, .entry h3, .read-card h3 { margin-bottom: 8px; }
.step-card p, .metric p, .entry p, .read-card p, .bar p, .news-list p, .hour-list p { color: var(--muted); font-size: 15px; line-height: 1.7; }
.stat {
  display: block;
  position: relative;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.stat::before {
  content: "";
  display: block;
  width: 12px;
  height: 1px;
  background: var(--copper);
  margin-bottom: 14px;
}
.stat b {
  display: block;
  color: var(--steel);
  font-size: clamp(40px, 5vw, 56px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.stat b small { font-size: .42em; margin-left: 2px; letter-spacing: 0; }
.stat em { display: block; margin-top: 10px; font-style: normal; font-weight: 700; color: var(--ink); }
.stat span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
.stat:hover { color: inherit; text-decoration: none; }
.quote-main { height: 100%; padding: 28px 26px; }
.quote-main p { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.55; }
.quote-main footer, .quote-side footer { margin-top: 16px; color: var(--muted); font-size: 14px; font-family: var(--sans); }
.stack { display: flex; flex-direction: column; gap: 16px; height: 100%; }
.quote-side { flex: 1; }
.quote-side p { font-size: 16px; line-height: 1.7; }
.bars { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.bar h3 { margin-bottom: 6px; }
.w-a { width: 100%; }
.w-b { width: 88%; }
.w-c { width: 74%; }
.w-d { width: 60%; }
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.news-list h3 { font-size: 18px; margin: 0; }
.news-list a { color: var(--ink); }
.news-list a:hover { color: var(--steel); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid var(--copper);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  background: var(--paper);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--moss); display: inline-block; }
.dot.copper { background: var(--copper); }
.metric b {
  display: block;
  margin: 8px 0;
  color: var(--steel);
  font-size: 36px;
  line-height: 1;
  font-weight: 700;
}
.hour-list { list-style: none; margin: 14px 0 18px; padding: 0; }
.hour-list li { padding: 12px 0; border-top: 1px solid var(--line); }
.hour-list li:last-child { border-bottom: 1px solid var(--line); }
.hour-list strong { display: block; color: var(--ink); font-size: 16px; }
.read-card + .read-card { margin-top: 16px; }
.entry { height: 100%; display: flex; flex-direction: column; align-items: flex-start; }
.more { margin-top: auto; padding-top: 12px; font-weight: 700; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: transparent; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 4px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--copper); font-size: 22px; line-height: 1; font-weight: 500; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 4px 16px; color: var(--muted); max-width: 48rem; }
.cal { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.cal a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-height: 168px;
  color: inherit;
  text-decoration: none;
  height: 100%;
}
.cal a:hover { color: inherit; text-decoration: none; }
.cal strong { font-size: 15px; line-height: 1.45; }
.cal .sub { color: var(--muted); font-size: 13px; line-height: 1.6; }
.close { padding: 104px 0; }
.site-foot { background: var(--paper); border-top: 1px solid var(--line); padding: 36px 0 42px; }
.foot-name {
  display: inline-block;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  border-bottom: 2px solid var(--steel);
  padding-bottom: 4px;
  margin-bottom: 14px;
}
.foot-nav { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot-nav a { color: var(--ink); font-weight: 500; }
.foot-nav a:hover { color: var(--steel); }
.small-note, .copy { color: var(--muted); font-size: 13px; line-height: 1.7; }
.copy { margin-top: 4px; }
@media (hover: hover) {
  .card:hover, .stat:hover, .cal a:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(27, 35, 48, .1); }
}
@media (min-width: 1024px) {
  .mast-grid { flex-wrap: nowrap; align-items: flex-end; }
  .channels.top-bar { order: 2; flex: 0 1 auto; border-left: 1px solid var(--line); padding-left: 18px; margin-left: 6px; }
  .channels .menu { display: flex; flex-direction: row; align-items: center; }
  .text-back { order: 3; margin-left: auto; }
  .title-bar { display: none; }
}
@media (max-width: 1023px) {
  .section { padding: 72px 0; }
  .cal { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .w-b { width: 94%; }
  .w-c { width: 88%; }
  .w-d { width: 80%; }
  .channels.top-bar { flex-basis: 100%; border-top: 1px solid var(--line); padding-top: 8px; }
}
@media (max-width: 639px) {
  .wrap { width: min(1120px, calc(100% - 28px)); }
  .section { padding: 48px 0; }
  .close { padding: 72px 0; }
  .logo { font-size: 22px; max-width: 8em; line-height: 1.35; }
  h1 { font-size: 28px; }
  .hero-side { flex-direction: column; }
  .vscale { flex-direction: row; gap: 14px; min-width: 0; padding: 0; }
  .hero-actions, .close-actions, .hour-actions { flex-direction: column; }
  .btn, .text-back { width: 100%; }
  .card, .shot { box-shadow: var(--shadow-soft); }
  .card:hover, .stat:hover, .cal a:hover { transform: none; }
  .contrast li { grid-template-columns: 1fr; gap: 4px; }
  .w-a, .w-b, .w-c, .w-d { width: 100%; }
  .cal { grid-template-columns: 1fr; }
  .cal a { min-height: 0; }
  .quote-main p { font-size: 22px; }
  .stat b { font-size: 40px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category2 */
:root {
  --bg: #F3F6FA;
  --paper: #FFFFFF;
  --ink: #1B2330;
  --muted: #5C6B7A;
  --steel: #2E5C86;
  --steel-deep: #244a6c;
  --line: #D5DEE8;
  --copper: #B08968;
  --moss: #3F6B52;
  --shadow: 0 10px 28px rgba(27, 35, 48, .08);
  --shadow-soft: 0 6px 14px rgba(27, 35, 48, .05);
  --radius: 12px;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; border: 0; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, .logo { font-family: var(--serif); font-weight: 700; color: var(--ink); letter-spacing: 0; }
h1 { font-size: clamp(32px, 4vw, 46px); line-height: 1.25; margin: 10px 0 8px; }
h2 { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.35; margin: 0 0 16px; }
h3 { font-size: 20px; line-height: 1.4; margin: 0 0 8px; }
p { margin: 0 0 12px; }
a { color: var(--steel); text-decoration: none; text-underline-offset: 3px; transition: color .18s ease, background .18s ease, transform .18s ease, box-shadow .18s ease; }
a:hover { color: var(--steel-deep); text-decoration: underline; }
a:active { color: var(--steel-deep); }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.wrap > .row, .section .row { max-width: none; }
.muted { color: var(--muted); }
.section { padding: 88px 0; }
.section.paper { background: var(--paper); }
.section.fog { background: var(--bg); }
.lead { max-width: 42rem; margin: 12px 0 0; font-size: 17px; line-height: 1.85; color: var(--ink); }
.kicker { margin: 0 0 8px; }
.tick-row { background: var(--paper); border-bottom: 1px solid var(--line); }
.tick-inner { display: flex; align-items: center; gap: 12px; min-height: 36px; font-size: 12px; letter-spacing: .08em; color: var(--muted); }
.hair { width: 18px; height: 1px; background: var(--copper); display: inline-block; flex: 0 0 auto; }
.mast { background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 40; }
.mast-grid { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px 18px; padding: 18px 0 14px; }
.logo {
  order: 1;
  flex: 1 1 280px;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.22;
  text-decoration: none;
  border-bottom: 2px solid var(--steel);
  padding-bottom: 4px;
}
.logo:hover, .logo:focus { color: var(--ink); text-decoration: none; }
.title-bar { order: 2; background: transparent; padding: 0; color: var(--ink); flex: 0 0 auto; border: 0; }
.title-bar-title { color: var(--ink); font-size: 14px; font-weight: 500; }
.menu-icon { margin-right: 8px; }
.menu-icon::after { background: var(--ink); box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink); }
.channels { order: 3; flex: 1 1 320px; background: transparent; }
.channels.top-bar, .channels.top-bar ul, .channels .menu { background: transparent; }
.channels .menu { margin: 0; }
.channels .menu > li > a {
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 14px;
  line-height: 1.4;
}
.channels .menu > li > a:hover { color: var(--steel); text-decoration: underline; background: transparent; }
.channels .is-current > a {
  color: var(--ink);
  text-decoration: none;
  box-shadow: inset 0 -2px 0 var(--copper);
  background: transparent;
}
.text-back {
  order: 4;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--steel);
  border-radius: 8px;
  background: var(--paper);
  color: var(--steel);
  font-weight: 500;
  text-decoration: none;
}
.text-back:hover { background: var(--bg); color: var(--steel-deep); text-decoration: none; transform: translateY(-1px); }
.text-back:active { transform: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--steel);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  background: var(--paper);
  color: var(--steel);
}
.btn:hover { text-decoration: none; }
.btn:active, .text-back:active { transform: none; }
.btn-steel { background: var(--steel); color: #fff; }
.btn-steel:hover, .btn-steel:focus { background: var(--steel-deep); color: #fff; transform: translateY(-1px); }
.btn-steel:active { background: #1d3e5c; color: #fff; transform: none; }
.btn-ghost { background: var(--paper); color: var(--steel); }
.btn-ghost:hover, .btn-ghost:focus { background: var(--bg); color: var(--steel-deep); transform: translateY(-1px); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid var(--copper);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  background: var(--paper);
}
.badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--moss);
  display: inline-block;
}
.scene-head-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 168px;
  gap: 28px 36px;
  align-items: end;
}
.scene-line {
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
}
.rule {
  width: 72px;
  height: 1px;
  background: var(--copper);
  margin: 14px 0;
  border: 0;
}
.narrow-index {
  border-left: 1px solid var(--line);
  padding: 4px 0 4px 16px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px 8px;
  align-items: baseline;
  font-size: 14px;
}
.narrow-index .no { color: var(--copper); font-weight: 700; font-variant-numeric: tabular-nums; }
.narrow-index span:nth-child(even) { color: var(--ink); }
.group-block + .group-block { margin-top: 36px; }
.group-head { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 8px; }
.group-head p { margin: 0; color: var(--muted); font-size: 14px; }
.wide-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.wide-list li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 8px 16px;
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.wide-list li:hover { background: rgba(46, 92, 134, .04); }
.wide-list .no { color: var(--copper); font-weight: 700; font-variant-numeric: tabular-nums; padding-top: 2px; }
.wide-list h3 { font-size: 18px; margin: 0 0 4px; font-family: var(--sans); }
.wide-list a { color: var(--ink); }
.wide-list a:hover { color: var(--steel); }
.wide-list p { margin: 0; color: var(--muted); font-size: 15px; }
.card {
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 20px;
  position: relative;
  height: 100%;
}
.card::before, .card::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--copper);
  border-style: solid;
  pointer-events: none;
}
.card::before { top: 8px; left: 8px; border-width: 1px 0 0 1px; }
.card::after { right: 8px; bottom: 8px; border-width: 0 1px 1px 0; }
.card p { color: var(--muted); font-size: 15px; line-height: 1.75; margin: 0; }
.card .count {
  display: block;
  color: var(--steel);
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1;
  margin-bottom: 12px;
}
.compare-row { align-items: stretch; }
.compare-row .columns { margin-bottom: 16px; }
.slice-list { display: flex; flex-direction: column; gap: 12px; }
.slice {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 8px 18px;
  align-items: center;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
}
.slice:nth-child(1) { margin-right: 14%; }
.slice:nth-child(2) { margin-right: 7%; }
.slice .no { color: var(--copper); font-weight: 700; font-variant-numeric: tabular-nums; }
.slice h3 { margin: 0 0 4px; font-size: 18px; }
.slice p { margin: 0; color: var(--muted); font-size: 15px; }
.chrono { list-style: none; margin: 0; padding: 0; }
.chrono li {
  display: grid;
  grid-template-columns: 148px 88px minmax(0, 1fr);
  gap: 12px 18px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.chrono time { color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.chrono .batch { color: var(--steel); font-weight: 700; }
.chrono p { margin: 0; }
.more-row { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-bottom: 18px; }
.more {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--steel);
  font-weight: 700;
  border-bottom: 1px solid var(--copper);
  text-decoration: none;
}
.more:hover { color: var(--steel-deep); text-decoration: none; }
.close-band { padding-top: 96px; padding-bottom: 96px; }
.close-band .lead { margin-bottom: 22px; }
.site-foot { background: var(--paper); border-top: 1px solid var(--line); padding: 36px 0 48px; }
.foot-name { font-family: var(--serif); font-size: 22px; margin: 0 0 12px; border-bottom: 2px solid var(--steel); display: inline-block; padding-bottom: 4px; }
.foot-nav { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot-nav a { color: var(--ink); font-weight: 500; }
.foot-nav a:hover { color: var(--steel); }
.small-note, .copy { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
@media (min-width: 64em) {
  .channels .menu { display: flex; justify-content: flex-end; }
  .channels .menu > li + li { box-shadow: inset 1px 0 0 var(--line); }
}
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .scene-head-grid { grid-template-columns: 1fr; }
  .narrow-index { border-left: 0; border-top: 1px solid var(--line); padding: 14px 0 0; max-width: 280px; }
  .slice:nth-child(1), .slice:nth-child(2) { margin-right: 0; }
  .chrono li { grid-template-columns: 120px 72px minmax(0, 1fr); }
}
@media (max-width: 768px) {
  .wrap { width: min(1120px, calc(100% - 28px)); }
  .section { padding: 60px 0; }
  .group-head, .more-row { flex-direction: column; align-items: flex-start; }
  .chrono li { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 639px) {
  body { font-size: 16px; }
  .logo { font-size: 26px; flex-basis: 100%; }
  .text-back, .btn { width: 100%; }
  .channels { flex-basis: 100%; }
  .card { box-shadow: var(--shadow-soft); }
  .wide-list li, .slice { grid-template-columns: 42px minmax(0, 1fr); }
  .close-band { padding-top: 64px; padding-bottom: 64px; }
}

/* roulang page: category1 */
:root {
 --bg: #F3F6FA;
 --paper: #FFFFFF;
 --ink: #1B2330;
 --muted: #5C6B7A;
 --steel: #2E5C86;
 --steel-deep: #244a6c;
 --line: #D5DEE8;
 --copper: #B08968;
 --moss: #3F6B52;
 --shadow: 0 10px 28px rgba(27, 35, 48, .08);
 --shadow-soft: 0 6px 14px rgba(27, 35, 48, .05);
 --radius: 12px;
 --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
 --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
/* roulang page: cate-yiben */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--bg);
 color: var(--ink);
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.75;
 text-rendering: optimizeLegibility;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; border: 0; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, .logo {
 font-family: var(--serif);
 font-weight: 700;
 color: var(--ink);
}
h1 { font-size: clamp(28px, 3.2vw, 40px); line-height: 1.3; margin-bottom: 12px; }
h2 { font-size: clamp(22px, 2.2vw, 30px); line-height: 1.35; margin-bottom: 18px; }
h3 { font-family: var(--sans); font-size: 18px; line-height: 1.45; font-weight: 700; margin: 12px 0 8px; color: var(--ink); }
a { color: var(--steel); text-decoration: none; text-underline-offset: 3px; transition: color .18s ease, background .18s ease, transform .18s ease, box-shadow .18s ease; }
a:hover { color: var(--steel-deep); text-decoration: underline; }
a:active { color: var(--steel-deep); }
.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.wrap > .row, .section .row { max-width: 100%; margin-left: 0; margin-right: 0; }
.muted { color: var(--muted); }
.section { padding: 88px 0; }
.section.paper { background: var(--paper); }
.section.fog { background: var(--bg); }
.lead { max-width: 40rem; margin: 0; font-size: 17px; line-height: 1.85; color: var(--ink); }
.tick-row { background: var(--paper); border-bottom: 1px solid var(--line); }
.tick-inner { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; min-height: 34px; font-size: 12px; letter-spacing: .08em; color: var(--muted); }
.hair { display: inline-block; width: 18px; height: 0; border-top: 1px solid var(--copper); }
.mast { background: var(--paper); border-bottom: 1px solid var(--line); position: relative; z-index: 20; }
.mast-grid { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px 18px; padding: 18px 0 14px; }
.logo {
 order: 1;
 flex: 1 1 280px;
 color: var(--ink);
 font-family: var(--serif);
 font-weight: 700;
 font-size: clamp(26px, 4vw, 48px);
 line-height: 1.22;
 text-decoration: none;
 border-bottom: 2px solid var(--steel);
 padding-bottom: 4px;
}
.logo:hover, .logo:focus { color: var(--ink); text-decoration: none; }
.title-bar { order: 2; background: transparent; padding: 0; color: var(--ink); flex: 0 0 auto; }
.title-bar-title { color: var(--ink); font-size: 14px; font-weight: 500; }
.menu-icon::after { background: var(--ink); box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink); }
.channels { order: 3; flex: 1 1 auto; background: transparent; }
.channels.top-bar, .channels.top-bar ul, .channels .menu { background: transparent; }
.channels .menu { margin: 0; }
.channels .menu > li > a {
 color: var(--ink);
 font-size: 15px;
 font-weight: 500;
 padding: 8px 12px;
 line-height: 1.4;
 background: transparent;
}
.channels .menu > li > a:hover { color: var(--steel); text-decoration: underline; background: transparent; }
.channels .is-current > a {
 color: var(--ink);
 text-decoration: none;
 box-shadow: inset 0 -2px 0 var(--copper);
}
.text-back {
 order: 4;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 40px;
 padding: 0 16px;
 border: 1px solid var(--steel);
 border-radius: 8px;
 background: var(--paper);
 color: var(--steel);
 font-weight: 500;
 text-decoration: none;
 transition: background .18s ease, color .18s ease, transform .18s ease;
}
.text-back:hover { background: var(--bg); color: var(--steel-deep); text-decoration: none; transform: translateY(-1px); }
.text-back:active { transform: none; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 46px;
 padding: 0 18px;
 border-radius: 8px;
 border: 1px solid var(--steel);
 font-weight: 700;
 line-height: 1;
 text-decoration: none;
 cursor: pointer;
 transition: background .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn:hover { text-decoration: none; }
.btn:focus, .text-back:focus, .channels a:focus, summary:focus, .more:focus, .card-hit:focus, .text-list a:focus {
 outline: 2px solid var(--copper);
 outline-offset: 3px;
}
.btn:active, .text-back:active { transform: none; }
.btn-steel { background: var(--steel); color: #fff; }
.btn-steel:hover, .btn-steel:focus { background: var(--steel-deep); color: #fff; transform: translateY(-1px); }
.btn-steel:active { background: #1d3e5c; color: #fff; transform: none; }
.btn-ghost { background: var(--paper); color: var(--steel); }
.btn-ghost:hover, .btn-ghost:focus { background: var(--bg); color: var(--steel-deep); transform: translateY(-1px); }
.btn-ghost:active { transform: none; }
.card {
 background: var(--paper);
 border: 2px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 22px;
 position: relative;
 transition: transform .18s ease, box-shadow .18s ease;
}
.card::before, .card::after {
 content: "";
 position: absolute;
 width: 12px;
 height: 12px;
 pointer-events: none;
 border-color: var(--copper);
 border-style: solid;
}
.card::before { top: 8px; left: 8px; border-width: 1.5px 0 0 1.5px; }
.card::after { right: 8px; bottom: 8px; border-width: 0 1.5px 1.5px 0; }
.edit-card { height: 100%; margin-bottom: 24px; padding: 14px; }
.edit-card:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(27, 35, 48, .1); }
.edit-card:active { transform: none; }
a.card-hit { display: block; color: inherit; text-decoration: none; }
a.card-hit:hover { color: inherit; text-decoration: none; }
a.card-hit:hover h3 { color: var(--steel); text-decoration: underline; }
.frame {
 aspect-ratio: 16 / 9;
 border-radius: 10px;
 overflow: hidden;
 background: var(--bg);
 border: 1px solid var(--line);
}
.frame img { width: 100%; height: 100%; object-fit: cover; }
.badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 min-height: 26px;
 margin-top: 12px;
 padding: 0 10px;
 border: 1px solid var(--copper);
 border-radius: 999px;
 color: var(--ink);
 font-size: 12px;
 font-weight: 500;
 background: var(--paper);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--moss); display: inline-block; }
.meta-line { margin: 0; color: var(--muted); font-size: 13px; letter-spacing: .04em; }
.edit-card p { color: var(--muted); font-size: 15px; line-height: 1.7; margin-bottom: 0; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.crumb a { color: var(--steel); }
.crumb span[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--copper); }
.h1-strip { padding-top: 48px; }
.index-rail { border-left: 1px solid var(--line); padding: 4px 0 4px 18px; }
.index-rail p { margin: 0 0 8px; color: var(--copper); font-size: 12px; letter-spacing: .12em; }
.index-rail ol { list-style: none; margin: 0; padding: 0; }
.index-rail li {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 padding: 11px 0;
 border-bottom: 1px solid var(--line);
 font-size: 14px;
}
.idx-no { color: var(--copper); font-weight: 700; min-width: 1.6em; }
.filter-line {
 display: flex;
 flex-wrap: wrap;
 gap: 12px 28px;
 margin: 0;
 padding: 14px 0;
 border-top: 1px solid var(--line);
 border-bottom: 1px solid var(--line);
 color: var(--ink);
}
.filter-line span { display: inline-flex; align-items: baseline; gap: 8px; }
.filter-line em { font-style: normal; color: var(--copper); font-weight: 700; }
.path { list-style: none; margin: 0; padding: 0; max-width: 760px; }
.path li { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.path .no { color: var(--copper); font-weight: 700; font-size: 22px; min-width: 2em; line-height: 1.4; }
.path h3 { margin-top: 0; }
.path p { margin: 0; color: var(--muted); font-size: 15px; }
.text-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.text-list li { border-bottom: 1px solid var(--line); }
.text-list a {
 display: flex;
 gap: 16px;
 align-items: baseline;
 padding: 16px 0;
 color: var(--ink);
 text-decoration: none;
}
.text-list a:hover { color: var(--steel); }
.text-list .no { color: var(--copper); font-weight: 700; min-width: 1.8em; }
.metric { height: 100%; margin-bottom: 16px; }
.metric b {
 display: block;
 font-family: var(--sans);
 font-size: 42px;
 line-height: 1.1;
 color: var(--steel);
 font-weight: 700;
 letter-spacing: .02em;
}
.metric span { display: block; margin-top: 8px; color: var(--copper); font-size: 12px; letter-spacing: .14em; }
.metric p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.more {
 display: inline-flex;
 align-items: center;
 min-height: 42px;
 margin-top: 4px;
 padding-bottom: 2px;
 color: var(--steel);
 font-weight: 700;
 border-bottom: 1px solid var(--copper);
 text-decoration: none;
}
.more:hover { color: var(--steel-deep); text-decoration: none; border-bottom-color: var(--steel); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: transparent; }
.faq-item summary {
 cursor: pointer;
 list-style: none;
 padding: 16px 4px;
 font-weight: 700;
 color: var(--ink);
 display: flex;
 justify-content: space-between;
 gap: 16px;
 align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--copper); font-weight: 700; font-size: 20px; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--steel); }
.faq-a { padding: 0 4px 16px; color: var(--muted); font-size: 15px; line-height: 1.75; }
.faq-a a { font-weight: 700; }
.close-band { padding-top: 72px; padding-bottom: 96px; }
.close-card { padding: 48px 36px; max-width: 860px; }
.close-card p { max-width: 38rem; color: var(--ink); margin-bottom: 0; }
.close-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.site-foot { background: var(--paper); border-top: 1px solid var(--line); padding: 36px 0 48px; }
.foot-name { font-family: var(--serif); font-weight: 700; font-size: 20px; margin: 0 0 12px; }
.foot-nav { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 0; margin: 0 0 12px; }
.foot-nav a { color: var(--ink); font-weight: 500; }
.foot-nav a:hover { color: var(--steel); }
.small-note, .copy { color: var(--muted); font-size: 13px; margin: 4px 0; }
@media (min-width: 1024px) {
 .channels .menu { display: flex; flex-wrap: wrap; align-items: center; }
 .channels .menu > li + li { box-shadow: inset 1px 0 0 var(--line); }
 .title-bar { display: none !important; }
}
@media (max-width: 1023px) {
 .index-rail { border-left: 0; border-top: 1px solid var(--line); padding: 16px 0 0; margin-top: 8px; }
 .channels { order: 4; flex: 1 1 100%; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; }
 .title-bar { order: 2; }
 .text-back { order: 3; }
 .channels .menu > li + li { border-top: 1px solid var(--line); }
 .channels .menu > li > a { display: block; }
}
@media (max-width: 768px) {
 .section { padding: 64px 0; }
 .h1-strip { padding-top: 36px; }
 .close-card { padding: 32px 22px; }
}
@media (max-width: 639px) {
 .section { padding: 52px 0; }
 .logo { flex-basis: 100%; }
 .text-back, .btn, .more { width: 100%; }
 .card { box-shadow: var(--shadow-soft); }
 .metric b { font-size: 34px; }
 .close-actions { display: grid; }
 .path li { gap: 12px; }
}
@media (max-width: 520px) {
 h1 { font-size: 28px; }
 .wrap { width: min(1120px, calc(100% - 24px)); }
 .tick-inner { letter-spacing: .02em; }
 .edit-card { padding: 12px; }
}