/* roulang page: index */
:root {
  --paper: #F6F1EA;
  --ink: #1C1916;
  --card: #FFFCF8;
  --text: #1A1714;
  --muted: #6B625A;
  --line: #E6DDD2;
  --persimmon: #D85A2A;
  --press: #A3411C;
  --pine: #0F6E6A;
  --mist: #E5F2F0;
  --shadow: 0 8px 24px rgba(28, 25, 22, 0.08);
  --r-sm: 2px;
  --r: 8px;
  --header: 72px;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "Segoe UI Mono", ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--persimmon); text-decoration: underline; }
a:active { color: var(--press); }
::selection { background: #F3C7B6; color: var(--ink); }
:focus-visible { outline: 2px solid var(--pine); outline-offset: 2px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 80;
  background: var(--card);
  color: var(--text);
  padding: 8px 12px;
  border-radius: var(--r-sm);
}
.skip:focus { top: 12px; }
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header);
  background: rgba(246, 241, 234, 0.96);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 0; text-decoration: none; }
.logo:hover { text-decoration: none; color: inherit; }
.logo:hover .logo-main { color: var(--persimmon); }
.logo-mark {
  width: 28px;
  height: 28px;
  border: 1px solid var(--ink);
  border-radius: var(--r-sm);
  position: relative;
  flex: none;
}
.logo-mark::before, .logo-mark::after {
  content: "";
  position: absolute;
  background: var(--persimmon);
}
.logo-mark::before { left: 6px; top: 6px; width: 7px; height: 16px; }
.logo-mark::after { right: 6px; top: 10px; width: 7px; height: 2px; background: var(--pine); }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.logo-main { font-size: 16px; font-weight: 640; letter-spacing: 0.04em; }
.logo-sub { font-size: 12px; letter-spacing: 0.12em; color: var(--muted); }
.desk-nav { display: flex; align-items: center; gap: 18px; }
.nav-link {
  position: relative;
  font-size: 14px;
  padding: 8px 0;
  text-decoration: none;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--persimmon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}
.nav-link:hover { color: var(--persimmon); text-decoration: none; }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.chip {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--ink);
  border-radius: var(--r);
  font-size: 14px;
  text-decoration: none;
}
.chip:hover { color: var(--persimmon); border-color: var(--persimmon); text-decoration: none; }
.nav-tools { display: flex; align-items: center; gap: 8px; flex: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--r);
  background: var(--persimmon);
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn:hover { background: var(--press); color: #fff; text-decoration: none; transform: translateY(-1px); }
.btn:active { background: var(--press); color: #fff; transform: translateY(0); }
a.btn:hover, a.btn:focus-visible, a.btn:active { color: #fff; text-decoration: none; }
.menu-btn {
  display: none;
  height: 44px;
  padding: 0 12px;
  border-radius: var(--r);
  border: 1px solid var(--ink);
  background: transparent;
}
.menu-btn:hover { color: var(--persimmon); border-color: var(--persimmon); }
.menu-btn:active { transform: translateY(1px); }
.drawer {
  position: fixed;
  inset: var(--header) 0 0 0;
  z-index: 40;
  background: var(--paper);
  padding: 20px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  border-top: 1px solid var(--line);
}
.drawer.is-open { transform: none; opacity: 1; pointer-events: auto; }
.drawer a {
  min-height: 48px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.drawer a:hover { color: var(--persimmon); text-decoration: none; }
body.lock { overflow: hidden; }
.band { padding: 96px 0; }
.band-paper { background: var(--paper); }
.band-mist { background: var(--mist); }
.band-ink { background: var(--ink); color: #F6F1EA; }
.band-ink .lead, .band-ink .muted { color: #D4CBC2; }
.idx {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--pine);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}
.band-ink .idx { color: #9ED9D4; }
h1 {
  font-family: var(--serif);
  font-weight: 560;
  font-size: clamp(40px, 4.6vw, 64px);
  line-height: 1.15;
  letter-spacing: 0.01em;
}
h2 {
  font-family: var(--sans);
  font-weight: 640;
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.25;
  letter-spacing: 0.01em;
}
h3 { font-size: 20px; line-height: 1.4; font-weight: 640; }
.subhead {
  margin-top: 12px;
  font-size: 18px;
  line-height: 1.5;
  max-width: 28em;
}
.lead { margin-top: 18px; max-width: 68ch; color: var(--muted); font-size: 16px; line-height: 1.85; }
.hero-grid, .split, .matrix, .topic-row, .stats, .steps, .wall, .slot-layout, .partner-row, .contact-grid, .foot-grid {
  min-width: 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 56px;
  align-items: center;
}
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 28px; flex-wrap: wrap; }
.link-quiet {
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
  text-decoration: none;
}
.link-quiet:hover { color: var(--persimmon); border-bottom-color: var(--persimmon); text-decoration: none; }
.locator { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); }
.locator ol { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 8px; }
.locator li {
  position: relative;
  padding-left: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}
.locator li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--r-sm);
  background: var(--pine);
  position: absolute;
  left: 0;
  top: 0.65em;
}
.locator li.is-here { color: var(--text); }
.locator li.is-here::before { background: var(--persimmon); }
.near { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 14px; align-items: center; }
.near span { font-size: 12px; letter-spacing: 0.12em; color: var(--pine); }
.near a { text-decoration: none; border-bottom: 1px solid transparent; }
.near a:hover { text-decoration: none; border-bottom-color: var(--persimmon); }
.console, .card, .cover, .echo-box, .control, .promise-line {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: none;
}
.console { padding: 16px; color: var(--text); }
.stage {
  position: relative;
  height: 230px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: #1C1916;
  overflow: hidden;
}
.stage i, .stage b { position: absolute; display: block; }
.stage i { left: 12%; top: 18%; width: 46%; height: 58%; background: #D85A2A; opacity: 0.9; }
.stage b { right: 10%; bottom: 14%; width: 34%; height: 28%; background: #0F6E6A; }
.tri {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  margin: -12px 0 0 -8px;
  border-style: solid;
  border-width: 12px 0 12px 18px;
  border-color: transparent transparent transparent #F6F1EA;
  transition: transform 0.25s ease;
}
.console-top, .console-meta, .badge-row, .near, .hero-actions, .promise {
  display: flex;
  align-items: center;
}
.console-top, .console-meta { justify-content: space-between; gap: 8px; margin-top: 12px; }
.console-top { margin-top: 14px; }
.ruler {
  height: 22px;
  margin-top: 14px;
  background-image: repeating-linear-gradient(90deg, var(--pine) 0 1px, transparent 1px 22px);
  opacity: 0.55;
}
.bar {
  position: relative;
  height: 4px;
  margin-top: 8px;
  background: var(--line);
  border-radius: var(--r-sm);
}
.bar > span, .mini-bar > span {
  display: block;
  height: 100%;
  width: 62%;
  background: var(--persimmon);
  border-radius: var(--r-sm);
  position: relative;
}
.bar > span::after {
  content: "";
  position: absolute;
  right: -4px;
  top: -4px;
  width: 12px;
  height: 12px;
  border-radius: var(--r-sm);
  background: var(--pine);
  animation: nudge 2.8s ease-in-out infinite;
}
.nums { font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--muted); }
.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 8px;
  border-radius: var(--r-sm);
  border: 1px solid var(--pine);
  color: var(--pine);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1;
  background: transparent;
}
.badge.is-on, .badge-hot { border-color: var(--persimmon); color: var(--persimmon); }
.badge-fill { background: var(--persimmon); border-color: var(--persimmon); color: #fff; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.matrix { display: grid; grid-template-columns: 1.45fr 0.82fr; gap: 16px; }
.panel-wide { grid-row: span 2; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; min-height: 100%; }
.panel { padding: 22px; }
.panel p, .cover p, .topic p, .step p, .partner p { color: var(--muted); margin-top: 8px; }
.band-ink .panel p { color: #D4CBC2; }
.kicker { font-size: 12px; letter-spacing: 0.12em; color: var(--pine); }
.wide-foot { display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; align-items: end; }
.big-time { font-family: var(--mono); font-size: 40px; font-variant-numeric: tabular-nums; line-height: 1; }
.topic-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.topic {
  padding: 20px;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.topic:hover, .cover:hover, .card.lift:hover, .partner:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.topic-link { align-self: flex-start; margin-top: 16px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { padding: 8px 8px 8px 22px; border-left: 1px solid rgba(246, 241, 234, 0.22); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 560;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  animation: rise 0.6s ease both;
}
.stat span { display: block; margin-top: 10px; color: #F6F1EA; }
.stat em { display: block; margin-top: 6px; font-style: normal; color: #D4CBC2; font-size: 13px; }
.split { display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: 40px; align-items: start; }
.scene-list li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  min-height: 48px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.scene-list li:last-child { border-bottom: 1px solid var(--line); }
.scene-no { font-family: var(--mono); color: var(--pine); font-variant-numeric: tabular-nums; padding-top: 4px; }
.steps { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.steps::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 22px;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--pine) 0 8px, transparent 8px 16px);
}
.step { position: relative; z-index: 1; }
.step-no {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--pine);
  border-radius: var(--r);
  background: var(--card);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  margin-bottom: 14px;
}
.control-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; }
.control { padding: 18px; }
.option-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.opt {
  height: 32px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--paper);
  font-variant-numeric: tabular-nums;
}
.opt.is-on { border-color: var(--persimmon); color: var(--persimmon); background: #fff; }
.mini-bar { height: 4px; background: var(--line); border-radius: var(--r-sm); margin-top: 18px; }
.wall { display: grid; grid-template-columns: 1.35fr 1fr 1fr; grid-auto-rows: 196px; gap: 16px; }
.cover {
  position: relative;
  overflow: hidden;
  min-height: 180px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #F6F1EA;
  border-color: transparent;
}
.cover:hover { color: #F6F1EA; }
.cover p { color: rgba(246, 241, 234, 0.82); }
.cover-lg { grid-column: 1; grid-row: span 2; min-height: 100%; }
.c1 { background: #1C1916; }
.c2 { background: #0F6E6A; }
.c3 { background: #A3411C; }
.c4 { background: #3C4744; }
.c5 { background: #6B3A28; }
.cover-top, .cover-play { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.play-dot {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(246, 241, 234, 0.7);
  border-radius: var(--r);
  position: relative;
  flex: none;
}
.play-dot::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  border-style: solid;
  border-width: 6px 0 6px 9px;
  border-color: transparent transparent transparent #F6F1EA;
  transition: transform 0.25s ease;
}
.cover:hover .play-dot::before, .cover:hover .tri { transform: translateX(3px); }
.time-badge {
  height: 24px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  border-radius: var(--r-sm);
  background: rgba(246, 241, 234, 0.14);
  border: 1px solid rgba(246, 241, 234, 0.35);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}
.slot-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 28px; }
.slot-list li, .news-row, .device-row {
  min-height: 48px;
  border-top: 1px solid var(--line);
}
.slot-list li {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
}
.slot-list li:last-child, .news-row:last-child { border-bottom: 1px solid var(--line); }
.filter-box { padding: 20px; align-self: start; }
.badge-row { flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.news-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  text-decoration: none;
  color: inherit;
}
.news-row:hover { color: var(--persimmon); text-decoration: none; }
.news-row strong { display: block; font-weight: 640; }
.news-row span { display: block; color: var(--muted); }
.news-row:hover span, .news-row:hover strong { color: var(--persimmon); }
.arrow { transition: transform 0.2s ease; font-size: 18px; }
.news-row:hover .arrow { transform: translateX(4px); }
.date { font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--pine); }
.partner-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.partner { padding: 20px; filter: grayscale(1); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.partner svg { width: 56px; height: 40px; margin-bottom: 12px; }
.device-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 180px;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
}
.device-row:last-child { border-bottom: 1px solid var(--line); }
.device-row b { font-variant-numeric: tabular-nums; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  min-height: 48px;
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  background: transparent;
  border: 0;
  font-weight: 640;
}
.faq-q:hover { color: var(--persimmon); }
.faq-q:active { color: var(--press); }
.mark { color: var(--pine); font-family: var(--mono); }
.js .faq-a { display: none; }
.js .faq-item.is-open .faq-a { display: block; }
.faq-a { padding: 0 0 16px; color: var(--muted); max-width: 78ch; }
.promise { justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.promise-line {
  margin-top: 8px;
  padding: 22px 8px;
  background: transparent;
  border-color: rgba(246, 241, 234, 0.2);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.promise-line p {
  text-align: center;
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.2;
  padding: 8px;
}
.promise-line p + p { border-left: 1px solid rgba(246, 241, 234, 0.2); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px; align-items: start; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.field label { font-size: 13px; }
.field input, .field textarea {
  width: 100%;
  height: 44px;
  border: 1px solid var(--ink);
  border-radius: var(--r-sm);
  background: var(--card);
  padding: 0 12px;
}
.field textarea { height: auto; min-height: 120px; padding: 12px; resize: vertical; }
.field input:hover, .field textarea:hover { border-color: var(--pine); }
.field input:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--pine); outline-offset: 2px; }
.hint { min-height: 1.5em; color: var(--persimmon); margin-bottom: 8px; }
.echo-box { margin-top: 8px; padding: 16px; }
.echo-box dt { color: var(--muted); font-size: 13px; }
.echo-box dd { margin: 0 0 10px; }
.site-footer { background: var(--ink); color: #F6F1EA; padding: 48px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; }
.foot-brand { font-family: var(--serif); font-size: 28px; line-height: 1.25; font-weight: 560; }
.foot-col { display: flex; flex-direction: column; gap: 8px; padding-top: 6px; }
.foot-col a { min-height: 32px; display: inline-flex; align-items: center; text-decoration: none; }
.foot-col a:hover { color: var(--persimmon); text-decoration: underline; }
.foot-label { font-size: 12px; letter-spacing: 0.12em; color: #9ED9D4; }
.copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(246, 241, 234, 0.16); color: #D4CBC2; font-size: 13px; }
@keyframes nudge { 50% { transform: translateX(6px); } }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (max-width: 1280px) {
  .container { width: min(1120px, calc(100% - 40px)); }
}
@media (max-width: 1024px) {
  .hero-grid, .matrix, .split, .control-grid, .slot-layout, .contact-grid { grid-template-columns: 1fr; }
  .panel-wide { grid-row: auto; }
  .stats { grid-template-columns: 1fr 1fr; gap: 22px 0; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .wall { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; }
  .cover-lg { grid-column: 1 / -1; grid-row: auto; min-height: 280px; }
  .desk-nav { gap: 12px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .band { padding: 64px 0; }
  .desk-nav { display: none; }
  .menu-btn { display: inline-flex; align-items: center; }
  .topic-row, .partner-row, .steps, .promise-line { grid-template-columns: 1fr; }
  .steps::before { top: 0; bottom: 0; left: 22px; right: auto; width: 1px; height: auto; background: repeating-linear-gradient(var(--pine) 0 8px, transparent 8px 16px); }
  .promise-line p + p { border-left: 0; border-top: 1px solid rgba(246, 241, 234, 0.2); }
  .wall, .slot-list li, .news-row, .device-row { grid-template-columns: 1fr; }
  .news-row .arrow { display: none; }
  .logo-main { font-size: 15px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 32px); }
  .stats { grid-template-columns: 1fr; }
  .stat { border-left: 0; padding-left: 0; }
  .hero-actions .btn, .nav-cta { padding: 0 12px; }
  .foot-grid { grid-template-columns: 1fr; }
}
@media (max-width: 390px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  .subhead { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .btn:hover, .topic:hover, .cover:hover, .card.lift:hover, .partner:hover, .cover:hover .play-dot::before { transform: none !important; }
}

/* roulang page: category1 */
:root {
 --paper: #F6F1EA;
 --ink: #1C1916;
 --card: #FFFCF8;
 --text: #1A1714;
 --muted: #6B625A;
 --line: #E6DDD2;
 --persimmon: #D85A2A;
 --press: #A3411C;
 --pine: #0F6E6A;
 --mist: #E5F2F0;
 --shadow: 0 8px 24px rgba(28, 25, 22, 0.08);
 --r-sm: 2px;
 --r: 8px;
 --header: 72px;
 --serif: "Noto Serif SC", "Songti SC", serif;
 --sans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 --mono: "SFMono-Regular", "Cascadia Mono", "Segoe UI Mono", ui-monospace, monospace;
}
/* roulang page: category1 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--paper);
 color: var(--text);
 font-family: var(--sans);
 font-size: 16px;
 line-height: 1.75;
 text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--persimmon); text-decoration: underline; }
a:active { color: var(--press); }
:focus-visible { outline: 2px solid var(--pine); outline-offset: 2px; }
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 50;
 height: var(--header);
 background: rgba(246, 241, 234, 0.96);
 border-bottom: 1px solid var(--line);
}
.nav-bar {
 height: var(--header);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 0; text-decoration: none; }
.logo:hover { text-decoration: none; color: inherit; }
.logo:hover .logo-main { color: var(--persimmon); }
.logo-mark {
 width: 28px; height: 28px; border: 1px solid var(--ink); border-radius: var(--r-sm); position: relative; flex: none;
}
.logo-mark::before, .logo-mark::after { content: ""; position: absolute; background: var(--persimmon); }
.logo-mark::before { left: 6px; top: 6px; width: 7px; height: 16px; }
.logo-mark::after { right: 6px; top: 10px; width: 7px; height: 2px; background: var(--pine); }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.logo-main { font-size: 16px; font-weight: 640; letter-spacing: 0.04em; white-space: nowrap; }
.logo-sub { font-size: 12px; letter-spacing: 0.12em; color: var(--muted); }
.desk-nav { display: flex; align-items: center; gap: 18px; }
.nav-link { position: relative; font-size: 14px; padding: 8px 0; text-decoration: none; }
.nav-link::after {
 content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: var(--persimmon);
 transform: scaleX(0); transform-origin: left center; transition: transform 0.25s ease;
}
.nav-link:hover { color: var(--persimmon); text-decoration: none; }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.chip {
 display: inline-flex; align-items: center; height: 32px; padding: 0 12px; border: 1px solid var(--ink);
 border-radius: var(--r); font-size: 14px; text-decoration: none;
}
.chip:hover { color: var(--persimmon); border-color: var(--persimmon); text-decoration: none; }
.chip.is-current, .chip[aria-current="page"] { color: var(--persimmon); border-color: var(--persimmon); }
.nav-tools { display: flex; align-items: center; gap: 8px; flex: none; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 16px; border: 0;
 border-radius: var(--r); background: var(--persimmon); color: #fff; font-size: 14px; letter-spacing: 0.04em;
 text-decoration: none; transition: background 0.2s ease, transform 0.2s ease;
}
.btn:hover { background: var(--press); color: #fff; text-decoration: none; transform: translateY(-1px); }
.btn:active { background: var(--press); color: #fff; transform: translateY(0); }
a.btn:hover, a.btn:focus-visible, a.btn:active { color: #fff; text-decoration: none; }
.menu-btn {
 display: none; height: 44px; padding: 0 12px; border-radius: var(--r); border: 1px solid var(--ink); background: transparent;
}
.menu-btn:hover { color: var(--persimmon); border-color: var(--persimmon); }
.menu-btn:active { transform: translateY(1px); }
.drawer {
 position: fixed; inset: var(--header) 0 0 0; z-index: 40; background: var(--paper); padding: 20px 24px 32px;
 display: flex; flex-direction: column; gap: 4px; transform: translateY(-8px); opacity: 0; pointer-events: none;
 border-top: 1px solid var(--line);
}
.drawer.is-open { transform: none; opacity: 1; pointer-events: auto; }
.drawer a { min-height: 48px; display: flex; align-items: center; border-bottom: 1px solid var(--line); text-decoration: none; }
.drawer a:hover { color: var(--persimmon); text-decoration: none; }
.drawer a[aria-current="page"] { color: var(--persimmon); }
body.lock { overflow: hidden; }
.section { padding: 96px 0; }
.band-paper { background: var(--paper); }
.band-mist { background: var(--mist); }
.band-ink { background: var(--ink); color: #F6F1EA; }
.band-ink .muted, .band-ink .idx { color: #D4CBC2; }
.band-ink a { color: #F6F1EA; }
.band-ink a:hover { color: var(--persimmon); }
.idx { display: flex; align-items: baseline; gap: 10px; margin: 0 0 12px; font-size: 12px; letter-spacing: 0.12em; color: var(--pine); }
.idx span, .num, .dur, time { font-family: var(--mono); font-variant-numeric: tabular-nums; }
h1 { margin: 0; font-family: var(--serif); font-weight: 560; font-size: 44px; line-height: 1.15; }
h2 { margin: 0; font-size: 36px; line-height: 1.2; font-weight: 640; }
h3 { margin: 0; font-size: 20px; line-height: 1.35; font-weight: 640; }
.lead { margin: 14px 0 0; max-width: 36em; color: var(--muted); font-size: 16px; }
.cat-head { padding: 36px 0 32px; }
.cat-head-grid { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; }
.result-side { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; min-width: 180px; }
.result-note { margin: 0; font-size: 14px; color: var(--muted); }
.result-note .num { font-size: 28px; color: var(--ink); margin-right: 4px; }
.sort-label { display: flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: 0.12em; color: var(--muted); }
.select {
 height: 44px; border: 1px solid var(--line); background: var(--card); border-radius: var(--r-sm); padding: 0 12px; min-width: 132px;
}
.select:hover { border-color: var(--persimmon); }
.filters { display: flex; flex-direction: column; gap: 16px; }
.fgroup { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-height: 48px; }
.flab { width: 88px; font-size: 12px; letter-spacing: 0.12em; color: var(--muted); }
.badge {
 display: inline-flex; align-items: center; height: 24px; padding: 0 8px; border-radius: var(--r-sm); border: 1px solid var(--pine);
 color: var(--pine); font-size: 12px; letter-spacing: 0.08em; line-height: 1; background: transparent;
}
button.badge { cursor: pointer; }
.badge:hover { border-color: var(--persimmon); color: var(--persimmon); }
.badge.is-on, .badge-hot { border-color: var(--persimmon); color: var(--persimmon); background: transparent; }
.plist { display: flex; flex-direction: column; }
.item {
 display: flex; align-items: center; gap: 18px; min-height: 56px; padding: 12px 0; border-bottom: 1px solid var(--line); background: transparent;
}
.item .frame { display: none; }
.item-main { min-width: 0; flex: 1; }
.item h3 { font-size: 16px; font-weight: 600; }
.item .sub { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.item-meta { display: flex; align-items: center; gap: 8px; flex: none; }
.dur { color: var(--muted); font-size: 13px; }
.item.is-lead {
 display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr); gap: 28px; align-items: stretch;
 margin: 0 0 18px; padding: 18px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card);
 box-shadow: var(--shadow); transition: transform 0.2s ease;
}
.item.is-lead .frame { display: block; position: relative; height: 240px; border-radius: var(--r); border: 1px solid var(--line); background: var(--ink); overflow: hidden; }
.item.is-lead h3 { font-family: var(--serif); font-size: 32px; font-weight: 560; line-height: 1.25; }
.item.is-lead .item-main { display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; }
.item.is-lead .item-meta { justify-content: flex-start; }
.item.is-lead:hover { transform: translateY(-2px); }
.frame i, .frame b, .play-tri, .time-badge { position: absolute; display: block; }
.frame i { left: 12%; top: 16%; width: 42%; height: 62%; background: #D85A2A; }
.frame b { right: 10%; bottom: 16%; width: 30%; height: 26%; background: #0F6E6A; }
.play-tri {
 left: 22px; bottom: 22px; width: 0; height: 0; border-style: solid; border-width: 8px 0 8px 14px;
 border-color: transparent transparent transparent #fff; transition: transform 0.2s ease;
}
.item.is-lead:hover .play-tri { transform: translate(4px, -2px); }
.time-badge {
 right: 12px; bottom: 12px; height: 24px; padding: 0 8px; display: inline-flex; align-items: center; border-radius: var(--r-sm);
 background: var(--card); color: var(--ink); font-family: var(--mono); font-size: 12px; font-variant-numeric: tabular-nums;
}
.more-line, .return-line { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.more-copy h2, .return-copy h2 { max-width: 16em; }
.defs { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr) minmax(0, 0.9fr); gap: 28px; margin-top: 28px; }
.def { padding-top: 16px; border-top: 1px solid var(--ink); }
.def p { margin: 8px 0 0; color: var(--muted); }
.band-mist .def { border-top-color: var(--pine); }
.news-list { margin-top: 8px; }
.news-row {
 display: grid; grid-template-columns: 88px minmax(0, 1fr) 24px; gap: 16px; align-items: center; min-height: 64px;
 border-bottom: 1px solid var(--line); color: inherit; text-decoration: none;
}
.news-row time { color: var(--muted); font-size: 13px; }
.news-row strong { display: block; font-weight: 640; }
.news-row em { display: block; font-style: normal; color: var(--muted); font-size: 14px; }
.arrow { color: var(--muted); transition: transform 0.2s ease, color 0.2s ease; }
.news-row:hover { color: inherit; text-decoration: none; }
.news-row:hover strong, .news-row:hover .arrow { color: var(--persimmon); }
.news-row:hover .arrow { transform: translateX(4px); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
 width: 100%; text-align: left; background: transparent; border: 0; min-height: 56px; padding: 12px 0;
 display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-q:hover { color: var(--persimmon); }
.faq-q i { font-style: normal; color: var(--pine); font-family: var(--mono); }
.faq-a { display: none; margin: 0; padding: 0 0 16px; color: var(--muted); }
.faq-item.is-open .faq-a { display: block; }
.site-footer { background: var(--ink); color: #F6F1EA; padding: 56px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.foot-brand { margin: 0; font-size: 18px; font-weight: 640; letter-spacing: 0.04em; }
.foot-label { display: block; margin-bottom: 8px; font-size: 12px; letter-spacing: 0.12em; color: #D4CBC2; }
.foot-col { display: flex; flex-direction: column; gap: 8px; }
.foot-col a { min-height: 32px; display: inline-flex; align-items: center; color: #F6F1EA; text-decoration: none; }
.foot-col a:hover { color: var(--persimmon); text-decoration: underline; }
.copy { margin: 28px 0 0; padding-top: 16px; border-top: 1px solid rgba(230, 221, 210, 0.25); color: #D4CBC2; font-size: 12px; font-family: var(--mono); }
@media (max-width: 1024px) {
 .desk-nav { display: none; }
 .menu-btn { display: inline-flex; align-items: center; }
 .item.is-lead, .defs { grid-template-columns: 1fr 1fr; }
 .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
 .section { padding: 64px 0; }
 .cat-head { padding: 28px 0 24px; }
 .cat-head-grid, .more-line, .return-line, .result-side { align-items: flex-start; flex-direction: column; }
 .item.is-lead, .defs, .foot-grid { grid-template-columns: 1fr; }
 .item.is-lead .frame { height: 180px; }
 h1 { font-size: 36px; }
 h2 { font-size: 28px; }
 .logo-sub { display: none; }
}
@media (max-width: 520px) {
 .container { width: min(1120px, calc(100% - 32px)); }
 h1 { font-size: 32px; }
 .logo-main { font-size: 13px; letter-spacing: 0; }
 .item { align-items: flex-start; flex-direction: column; gap: 6px; }
 .flab { width: 100%; }
 .news-row { grid-template-columns: 64px minmax(0, 1fr) 16px; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { animation: none !important; transition: none !important; }
}