/* roulang page: index */
:root {
  --bg: #12110F;
  --bg-2: #1C1916;
  --card: #26221C;
  --ink: #F4EFE6;
  --muted: #B7A99A;
  --amber: #FF7A1A;
  --magenta: #E23B8C;
  --line: rgba(255, 122, 26, 0.28);
  --border: rgba(255, 255, 255, 0.12);
  --grad: linear-gradient(128deg, #FF7A1A, #E23B8C);
  --radius: 28px;
  --radius-sm: 16px;
  --shadow: 0 10px 24px rgba(20, 12, 8, 0.32);
  --max: 1160px;
  --nav-h: 72px;
  --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input, summary { font-family: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.num { font-variant-numeric: tabular-nums; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  background: #0E0D0B;
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(#0E0D0B, #0E0D0B), var(--grad);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}
.nav-wrap {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 0; }
.logo-name { font-size: 18px; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; }
.logo-scale {
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  line-height: 1;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  position: relative;
  padding: 10px 14px;
  color: var(--muted);
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.04); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 10px var(--magenta);
}
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #161411;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: #0E0D0B;
  border-bottom: 1px solid var(--line);
  padding: 12px 20px 20px;
  z-index: 39;
}
.nav-drawer a {
  display: block;
  padding: 14px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ink);
}
.nav-drawer a.active { color: var(--amber); box-shadow: inset 2px 0 0 var(--magenta); }
.nav-drawer.is-open { display: block; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--grad);
  color: #F4EFE6;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: filter 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.btn:hover { filter: brightness(1.12); color: #F4EFE6; }
.btn:active { transform: translateY(1px); filter: brightness(0.98); }
.btn:focus-visible, a:focus-visible, summary:focus-visible, .person-input:focus-visible + label {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--amber); filter: none; background: rgba(255, 122, 26, 0.08); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.badge.soft {
  background: rgba(255, 122, 26, 0.12);
  color: var(--ink);
  border: 1px solid var(--line);
}
.hero {
  position: relative;
  padding: 72px 0 88px;
  background:
    radial-gradient(420px 240px at 8% 20%, rgba(255, 122, 26, 0.22), transparent 70%),
    radial-gradient(360px 220px at 92% 0%, rgba(226, 59, 140, 0.16), transparent 72%),
    var(--bg);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 24px;
  align-items: stretch;
}
.kicker { color: var(--amber); font-size: 14px; letter-spacing: 0.08em; margin-bottom: 12px; }
h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.2; font-weight: 760; letter-spacing: 0.01em; }
.subhead { margin-top: 14px; font-size: 20px; color: var(--ink); }
.hero-lead { margin-top: 18px; color: var(--muted); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-card, .card, .pain-row, .wide-card, .side-card, .quote, .scene-card, .entry-card, .faq, .metric, .node, .solution {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card { padding: 22px; position: relative; min-height: 100%; }
.hero-card-top { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.poster {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #1a1714;
}
.poster.tall { aspect-ratio: 3 / 4; }
.cap-line {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(18, 17, 15, 0.72);
  border: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.cap-line strong { font-weight: 700; }
.card-title { font-size: 22px; line-height: 1.35; margin: 14px 0 8px; }
.muted { color: var(--muted); }
section { padding: var(--pad) 0; }
.bg-a { background: var(--bg); }
.bg-b { background: var(--bg-2); }
.section-head { max-width: 760px; margin-bottom: 28px; }
h2 { font-size: clamp(26px, 3vw, 36px); line-height: 1.3; margin-bottom: 12px; }
.lead { color: var(--muted); }
.pain-row {
  display: grid;
  grid-template-columns: 1.45fr 0.7fr;
  gap: 18px;
  padding: 26px 28px;
  margin-bottom: 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.pain-row:last-child { margin-bottom: 0; }
.pain-row:hover, .wide-card:hover, .quote:hover, .scene-card:hover, .entry-card:hover, .side-card:hover, .metric:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    var(--grad) border-box;
}
.pain-row h3, .step h3, .node h3, .metric h3 { font-size: 20px; margin-bottom: 6px; }
.pain-result { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 10px; }
.solution { padding: 28px; }
.solution-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 24px; align-items: center; }
.point-list li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.point-list li:last-child { border-bottom: 0; }
.sub-demo {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 16px;
  background:
    linear-gradient(180deg, rgba(255, 122, 26, 0.08), rgba(226, 59, 140, 0.05)),
    #181512;
}
.sub-line {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 10px;
  padding: 12px;
  margin-bottom: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}
.sub-line span { color: var(--amber); }
.sub-line.dim { opacity: 0.78; }
.track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.track::before {
  content: "";
  position: absolute;
  left: 6%;
  right: 6%;
  top: 28px;
  height: 2px;
  background: var(--line);
}
.step {
  position: relative;
  padding: 22px 18px 8px;
}
.step-no {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--grad);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  font-size: 20px;
}
.result-band {
  background: linear-gradient(128deg, rgba(255, 122, 26, 0.2), rgba(226, 59, 140, 0.16));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.result-grid, .badge-scroll { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.result-item { padding: 8px 0; }
.result-item .num { display: block; font-size: 48px; line-height: 1; margin: 8px 0; }
.feature-layout { display: grid; grid-template-columns: 1.45fr 0.62fr; gap: 24px; }
.stack { display: grid; gap: 24px; }
.wide-card, .side-card, .quote, .scene-card, .entry-card { padding: 22px; transition: transform 0.2s ease; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.side-card h3 { margin-bottom: 12px; }
.side-card li { padding: 14px 0; border-top: 1px solid rgba(255, 255, 255, 0.08); color: var(--muted); }
.timeline { margin-left: 8px; }
.node { position: relative; padding: 18px 18px 18px 72px; margin-bottom: 24px; }
.node:last-child { margin-bottom: 0; }
.node-no {
  position: absolute;
  left: 16px;
  top: 22px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: #141210;
  border: 1px solid var(--line);
}
.quote-grid, .scene-grid, .entry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.quote footer { margin-top: 18px; color: var(--amber); font-size: 14px; }
.people { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.person { position: relative; }
.person-input { position: absolute; opacity: 0; pointer-events: none; }
.person label {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #1a1714;
  cursor: pointer;
}
.person-input:checked + label { background: var(--grad); border-color: transparent; }
.person p { display: none; margin-top: 10px; color: var(--muted); }
.person-input:checked ~ p { display: block; }
.news-row {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.news-row:hover strong { color: var(--amber); }
.date { color: var(--amber); }
.metric-wall {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  grid-template-areas:
    "a b c"
    "a d d"
    "e e f";
  gap: 24px;
}
.m1 { grid-area: a; }
.m2 { grid-area: b; }
.m3 { grid-area: c; }
.m4 { grid-area: d; }
.m5 { grid-area: e; }
.m6 { grid-area: f; }
.metric { padding: 22px; min-height: 150px; }
.metric .num { font-size: 40px; display: block; margin: 8px 0; }
.entry-card h3 { font-size: 28px; margin: 8px 0 10px; }
.faq + .faq { margin-top: 16px; }
.faq { padding: 6px 20px; }
.faq summary {
  cursor: pointer;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--amber); font-size: 22px; }
.faq[open] summary::after { content: "–"; }
.faq p { color: var(--muted); padding-bottom: 16px; }
.closer-wrap { padding-bottom: 88px; background: var(--bg); }
.closer {
  padding: 36px;
  border-radius: var(--radius);
  background: var(--grad);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow);
}
.closer h2, .closer p { color: #F4EFE6; }
.closer .btn { background: #141210; }
.closer .btn-ghost { background: transparent; border-color: rgba(255, 255, 255, 0.45); color: #F4EFE6; }
.closer-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.site-footer { background: #0E0D0B; border-top: 1px solid var(--line); padding: 48px 0 28px; }
.foot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.site-footer h3 { font-size: 16px; margin-bottom: 12px; }
.site-footer a { display: block; color: var(--muted); padding: 6px 0; }
.site-footer a:hover { color: var(--ink); }
.copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, 0.08); color: var(--muted); font-size: 13px; }
@media (max-width: 1100px) {
  .hero-grid, .solution-grid, .feature-layout, .quote-grid, .scene-grid, .entry-grid { grid-template-columns: 1fr; }
  .track { grid-template-columns: 1fr 1fr; }
  .track::before { display: none; }
  .result-grid { grid-template-columns: 1fr 1fr; }
  .metric-wall { grid-template-columns: 1fr 1fr; grid-template-areas: "a b" "c d" "e f"; }
}
@media (max-width: 768px) {
  :root { --pad: 48px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero { padding: 48px 0; }
  .pain-row, .people, .news-row, .closer, .foot-grid { grid-template-columns: 1fr; }
  .track { grid-template-columns: 1fr; }
  .news-row { gap: 6px; }
  .badge-scroll, .result-grid, .metric-wall {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    padding-bottom: 8px;
    grid-template-areas: none;
  }
  .result-item, .metric { min-width: 210px; }
  .closer-wrap { padding-bottom: 48px; }
  .logo-name { font-size: 15px; }
}
@media (max-width: 480px) {
  .container { width: calc(100% - 28px); }
  .logo-scale { display: none; }
  .logo-name { font-size: 13px; }
  .hero-actions .btn, .closer-actions .btn { width: 100%; }
  .foot-grid { grid-template-columns: 1fr; }
  h1 { font-size: 30px; }
  .result-item .num { font-size: 36px; }
}

/* roulang page: category2 */
:root {
  --bg: #12110F;
  --bg-2: #1C1916;
  --card: #26221C;
  --ink: #F4EFE6;
  --muted: #B7A99A;
  --amber: #FF7A1A;
  --magenta: #E23B8C;
  --line: rgba(255, 122, 26, 0.28);
  --border: rgba(255, 255, 255, 0.12);
  --grad: linear-gradient(128deg, #FF7A1A, #E23B8C);
  --radius: 28px;
  --radius-sm: 16px;
  --shadow: 0 10px 24px rgba(20, 12, 8, 0.32);
  --max: 1160px;
  --nav-h: 72px;
  --pad: 88px;
}
/* roulang page: category2 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input, summary { font-family: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.num { font-variant-numeric: tabular-nums; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  background: #0E0D0B;
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(#0E0D0B, #0E0D0B), var(--grad);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}
.nav-wrap {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 0; }
.logo-name {
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo-scale {
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  line-height: 1;
  flex: 0 0 auto;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  position: relative;
  padding: 10px 14px;
  color: var(--muted);
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.04); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 10px var(--magenta);
}
.nav-cta { flex: 0 0 auto; }
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #161411;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: #0E0D0B;
  border-bottom: 1px solid var(--line);
  padding: 12px 20px 20px;
  z-index: 39;
}
.nav-drawer a {
  display: block;
  padding: 14px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ink);
}
.nav-drawer a.active { color: var(--amber); box-shadow: inset 2px 0 0 var(--magenta); }
.nav-drawer.is-open { display: block; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--grad);
  color: #F4EFE6;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: filter 0.2s ease, transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.btn:hover { filter: brightness(1.12); color: #F4EFE6; }
.btn:active { transform: translateY(1px); filter: brightness(0.98); }
.btn:focus-visible, a:focus-visible, summary:focus-visible, button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--amber); filter: none; background: rgba(255, 122, 26, 0.08); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.badge.soft {
  background: rgba(255, 122, 26, 0.12);
  color: var(--ink);
  border: 1px solid var(--line);
}
.muted { color: var(--muted); }
section { padding: var(--pad) 0; }
.bg-a { background: var(--bg); }
.bg-b { background: var(--bg-2); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2 { font-size: 32px; line-height: 1.3; margin-bottom: 8px; }
.kicker { color: var(--amber); font-size: 13px; letter-spacing: 0.08em; margin-bottom: 10px; }
.page-head {
  display: grid;
  grid-template-columns: 1.45fr 0.55fr;
  gap: 24px;
  align-items: stretch;
}
.page-copy h1 { font-size: 44px; line-height: 1.2; margin: 12px 0 14px; }
.page-copy .lead { color: var(--muted); max-width: 640px; font-size: 18px; }
.metric-rail { display: flex; flex-direction: column; gap: 12px; }
.rail-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.rail-item b { font-size: 32px; line-height: 1; font-weight: 800; }
.rail-item span { color: var(--muted); font-size: 14px; }
.scene-stack { display: flex; flex-direction: column; gap: 24px; }
.scene-block, .scene-card, .quote-slim, .compare-col, .faq details, .close-bar, .rail-item {
  transition: transform 0.2s ease, border-color 0.2s ease, filter 0.2s ease;
}
.scene-block {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: center;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.scene-block.reverse { grid-template-columns: 0.85fr 1.15fr; }
.scene-block.reverse .scene-copy { order: 2; }
.scene-block h2, .scene-card h3 { font-size: 26px; line-height: 1.35; margin: 12px 0 8px; }
.scene-block p, .scene-card p, .quote-slim p, .faq details p, .compare-col p { color: var(--muted); }
.tag-row, .card-badges { display: flex; flex-wrap: nowrap; gap: 8px; overflow-x: auto; margin-top: 16px; }
.poster {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(160deg, rgba(255, 122, 26, 0.35), transparent 42%),
    linear-gradient(320deg, rgba(226, 59, 140, 0.28), transparent 46%),
    #1A1613;
  border: 1px solid var(--border);
  overflow: hidden;
}
.poster.tall { aspect-ratio: 3 / 4; }
.poster .subbar {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  min-height: 34px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(14, 13, 11, 0.78);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
}
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.scene-card {
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.scene-card h3 { font-size: 22px; }
.scene-block:hover, .scene-card:hover, .quote-slim:hover, .compare-col:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    var(--grad) border-box;
}
.clip-list { border-top: 1px solid rgba(255, 255, 255, 0.08); }
.clip-list li {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.clip-no {
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.clip-list strong { display: block; font-size: 18px; margin-bottom: 4px; }
.quote-col { max-width: 760px; display: flex; flex-direction: column; gap: 16px; }
.quote-slim {
  padding: 24px 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.quote-slim q { font-size: 22px; line-height: 1.5; display: block; margin-bottom: 12px; }
.quote-slim cite { color: var(--muted); font-style: normal; font-size: 14px; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.compare-col {
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.compare-col h3 { font-size: 22px; margin-bottom: 18px; }
.pair { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; padding: 14px 0; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.pair b { font-size: 40px; line-height: 1; font-weight: 800; }
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 0 20px;
  margin-bottom: 12px;
}
.faq details:last-child { margin-bottom: 0; }
.faq summary {
  cursor: pointer;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--amber); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; color: var(--magenta); }
.faq details[open] summary { color: var(--ink); }
.faq details p { margin: 0 0 18px; }
.close-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--grad);
  box-shadow: var(--shadow);
}
.close-bar h2 { font-size: 28px; line-height: 1.35; margin-bottom: 6px; }
.close-bar p { color: #F4EFE6; }
.close-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.close-bar .btn { background: #12110F; color: #F4EFE6; }
.close-bar .btn:hover { filter: brightness(1.18); }
.text-home {
  color: #F4EFE6;
  font-weight: 700;
  border-bottom: 2px solid rgba(244, 239, 230, 0.7);
  padding-bottom: 2px;
}
.text-home:hover { border-bottom-color: #F4EFE6; }
.site-footer {
  background: #0E0D0B;
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
}
.foot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.site-footer h3 { font-size: 16px; margin: 0 0 12px; }
.site-footer a { display: block; color: var(--muted); padding: 6px 0; transition: color 0.2s ease; }
.site-footer a:hover { color: var(--ink); }
.copy { color: var(--muted); font-size: 13px; margin-top: 28px; }
@media (max-width: 1100px) {
  .page-copy h1 { font-size: 36px; }
  .scene-block, .scene-block.reverse { grid-template-columns: 1fr; }
  .scene-block.reverse .scene-copy { order: 0; }
  .compare-col .pair b { font-size: 32px; }
}
@media (max-width: 768px) {
  :root { --pad: 48px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .page-head, .card-grid, .compare, .foot-grid { grid-template-columns: 1fr 1fr; }
  .page-head, .card-grid, .compare { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .section-head h2, .close-bar h2 { font-size: 26px; }
  .page-copy h1 { font-size: 32px; }
  .close-bar { flex-direction: column; align-items: flex-start; }
  .tag-row, .card-badges { padding-bottom: 4px; }
}
@media (max-width: 480px) {
  .container { width: min(var(--max), calc(100% - 28px)); }
  .foot-grid { grid-template-columns: 1fr; }
  .page-copy h1 { font-size: 28px; }
  .clip-list li { grid-template-columns: 64px 1fr; }
  .clip-no { font-size: 26px; }
  .pair b { font-size: 28px; }
  .logo-scale { display: none; }
}

/* roulang page: category1 */
:root {
  --bg: #12110F;
  --bg-2: #1C1916;
  --card: #26221C;
  --ink: #F4EFE6;
  --muted: #B7A99A;
  --amber: #FF7A1A;
  --magenta: #E23B8C;
  --line: rgba(255, 122, 26, 0.28);
  --border: rgba(255, 255, 255, 0.12);
  --grad: linear-gradient(128deg, #FF7A1A, #E23B8C);
  --radius: 28px;
  --radius-sm: 16px;
  --shadow: 0 10px 24px rgba(20, 12, 8, 0.32);
  --max: 1160px;
  --nav-h: 72px;
  --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input, summary { font-family: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.muted { color: var(--muted); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  background: #0E0D0B;
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(#0E0D0B, #0E0D0B), var(--grad);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}
.nav-wrap {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 0; }
.logo-name { font-size: 18px; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; }
.logo-scale {
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  line-height: 1;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  position: relative;
  padding: 10px 14px;
  color: var(--muted);
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.04); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 10px var(--magenta);
}
.nav-cta { flex: 0 0 auto; }
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #161411;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: #0E0D0B;
  border-bottom: 1px solid var(--line);
  padding: 12px 20px 20px;
  z-index: 39;
}
.nav-drawer a {
  display: block;
  padding: 14px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ink);
}
.nav-drawer a.active { color: var(--amber); box-shadow: inset 2px 0 0 var(--magenta); }
.nav-drawer.is-open { display: block; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--grad);
  color: #F4EFE6;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: filter 0.2s ease, transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.btn:hover { filter: brightness(1.12); color: #F4EFE6; }
.btn:active { transform: translateY(1px); filter: brightness(0.98); }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--amber); filter: none; background: rgba(255, 122, 26, 0.08); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--grad);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.badge.soft {
  background: rgba(255, 122, 26, 0.12);
  color: var(--ink);
  border: 1px solid var(--line);
}
section { padding: var(--pad) 0; }
.bg-a { background: var(--bg); }
.bg-b { background: var(--bg-2); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2 { font-size: 30px; line-height: 1.3; margin-bottom: 8px; }
.page-head {
  position: relative;
  padding: 48px 0 36px;
  background:
    radial-gradient(420px 180px at 0% 0%, rgba(255, 122, 26, 0.18), transparent 70%),
    radial-gradient(320px 160px at 100% 0%, rgba(226, 59, 140, 0.12), transparent 72%),
    var(--bg);
}
.page-head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}
.kicker { margin-bottom: 12px; }
.page-head h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.2; font-weight: 800; }
.page-note { margin-top: 12px; color: var(--muted); max-width: 720px; }
.filter-sec { padding-top: 36px; }
.filter-bar {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.chip-row { display: flex; align-items: center; gap: 14px; }
.chip-label { min-width: 72px; color: var(--muted); font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  transition: color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.chip:hover { color: var(--ink); border-color: var(--line); }
.chip.is-on {
  color: var(--ink);
  border-color: transparent;
  background: linear-gradient(#1C1916, #1C1916) padding-box, var(--grad) border-box;
  box-shadow: 0 0 12px rgba(226, 59, 140, 0.35);
}
.entry-list { display: grid; gap: 24px; }
.entry {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  align-items: center;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.entry[hidden] { display: none !important; }
.entry:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box;
}
.poster {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: linear-gradient(160deg, #3a2a1c, #1a1411 70%);
}
.poster::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0.55;
}
.poster-b::before { opacity: 0.4; }
.poster-c::before { opacity: 0.7; }
.poster-lines {
  position: absolute;
  inset: 18px 16px auto 16px;
  height: 46%;
  background:
    linear-gradient(rgba(244, 239, 230, 0.35), rgba(244, 239, 230, 0.35)) 0 0 / 100% 2px no-repeat,
    linear-gradient(rgba(244, 239, 230, 0.2), rgba(244, 239, 230, 0.2)) 0 14px / 78% 2px no-repeat,
    linear-gradient(rgba(244, 239, 230, 0.2), rgba(244, 239, 230, 0.2)) 0 28px / 62% 2px no-repeat;
}
.sub-bar {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  min-height: 32px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(14, 13, 11, 0.78);
  color: var(--ink);
  font-size: 13px;
}
.entry-title { font-size: 22px; line-height: 1.4; margin-bottom: 10px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.entry-text { color: var(--muted); }
.more-row { display: flex; justify-content: flex-end; margin-top: 22px; }
.more-link {
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid var(--magenta);
  padding-bottom: 2px;
  box-shadow: 0 8px 16px rgba(226, 59, 140, 0.0);
}
.more-link:hover { color: var(--amber); }
.update-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 26px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(128deg, rgba(255, 122, 26, 0.16), rgba(226, 59, 140, 0.1)), var(--card);
  box-shadow: var(--shadow);
}
.update-bar h2 { font-size: 26px; line-height: 1.35; margin-bottom: 6px; }
.update-copy { color: var(--muted); max-width: 760px; }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.path-card {
  display: block;
  padding: 22px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.path-card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box;
}
.path-no {
  display: inline-flex;
  min-width: 48px;
  justify-content: center;
  margin-bottom: 12px;
  font-weight: 800;
}
.path-card h3 { font-size: 20px; margin-bottom: 8px; }
.related-scroller {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}
.related-item {
  flex: 0 0 280px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.related-item strong { font-size: 18px; line-height: 1.45; }
.related-item:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box;
}
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.metric {
  padding: 22px 18px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 148px;
}
.metric b {
  display: block;
  font-size: 42px;
  line-height: 1.1;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metric span { display: block; margin-top: 8px; color: var(--muted); }
.close-sec { padding-top: 24px; }
.close-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 32px;
  border-radius: var(--radius);
  background: var(--grad);
  box-shadow: var(--shadow);
}
.close-bar h2 { font-size: 30px; line-height: 1.3; margin-bottom: 6px; }
.close-bar p { color: rgba(244, 239, 230, 0.88); }
.close-bar .btn { background: #12110F; border-color: rgba(255, 255, 255, 0.12); }
.close-bar .btn:hover { filter: brightness(1.2); }
.site-footer {
  background: #0E0D0B;
  border-top: 1px solid var(--line);
  padding: 48px 0 28px;
}
.foot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.foot-grid h3 { font-size: 16px; margin-bottom: 12px; }
.foot-grid a { display: block; color: var(--muted); padding: 6px 0; transition: color 0.2s ease; }
.foot-grid a:hover { color: var(--ink); }
.copy { margin-top: 28px; color: var(--muted); font-size: 14px; }
@media (max-width: 1100px) {
  .entry { grid-template-columns: 240px 1fr; }
  .metric b { font-size: 36px; }
  .logo-name { font-size: 16px; }
}
@media (max-width: 768px) {
  :root { --pad: 48px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .entry, .path-grid, .update-bar, .close-bar, .chip-row { grid-template-columns: 1fr; display: grid; }
  .chip-row { align-items: flex-start; }
  .metric-grid {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 6px;
  }
  .metric { min-width: 180px; flex: 0 0 180px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .section-head h2, .close-bar h2, .update-bar h2 { font-size: 24px; }
}
@media (max-width: 480px) {
  .container { width: min(var(--max), calc(100% - 28px)); }
  .logo-name { font-size: 13px; letter-spacing: 0; }
  .logo-scale { display: none; }
  .foot-grid { grid-template-columns: 1fr; }
  .page-head { padding: 32px 0 24px; }
  .entry-title { font-size: 18px; }
  .metric b { font-size: 32px; }
  .close-bar, .update-bar { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}