/* roulang page: index */
:root {
  --bg: #1C1416;
  --bg-alt: #24181B;
  --surface: #2A1E22;
  --line: rgba(246,236,230,.14);
  --text: #F6ECE6;
  --muted: #CDB8B0;
  --gold: #F0B15A;
  --bud: #E7F3D4;
  --ink: #2A2118;
  --brick: #8C3A3A;
  --grad: linear-gradient(135deg, #C4374A 0%, #E37A45 52%, #F0B15A 100%);
  --shadow: 0 16px 40px rgba(40,16,18,.28);
  --r-lg: 28px;
  --r-md: 20px;
  --r-pill: 999px;
  --pad: 72px;
  --mono: ui-monospace, "Sarasa Mono SC", monospace;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 700; line-height: 1.28; }
h1 { font-size: 42px; letter-spacing: 0; }
h2 { font-size: 32px; margin-bottom: 14px; }
h3 { font-size: 18px; }
p + p { margin-top: 10px; }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--bud);
  outline-offset: 3px;
}
::selection { background: #C4374A; color: var(--text); }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.lead { max-width: 38em; color: var(--muted); margin-bottom: 28px; }
.num, .step-no, .mega strong, .data-badge, .index-no, .who-tag, .time-bar b, .readout-main strong {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(28,20,22,.96);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
}
.logo:hover { color: var(--gold); text-decoration: none; }
.nav-pills { display: flex; align-items: center; gap: 10px; }
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(246,236,230,.32);
  color: var(--text);
  background: transparent;
  text-decoration: none;
}
.pill:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(246,236,230,.32);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--gold); color: var(--gold); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  height: 48px;
  padding: 0 22px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: transform .18s ease, filter .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--grad);
  color: var(--ink);
  box-shadow: var(--shadow);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); filter: brightness(.98); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(246,236,230,.45);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }
.btn-ghost:active { transform: translateY(1px); }
.block { padding: var(--pad) 0; background: var(--bg); }
.block-alt { background: var(--bg-alt); }
.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 14px;
}
.kicker::before {
  content: "";
  width: 18px;
  height: 3px;
  border-radius: var(--r-pill);
  background: #E37A45;
}
.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
  align-items: center;
}
.hero-copy { grid-column: span 7; }
.hero-card-wrap { grid-column: span 5; position: relative; padding-top: 22px; }
.hero-lead { max-width: 38em; color: var(--muted); margin: 16px 0 26px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.readout-card {
  position: relative;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    var(--grad) border-box;
  border: 2px solid transparent;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: 58px 24px 24px;
}
.badge-float {
  position: absolute;
  top: -16px;
  left: 18px;
  right: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--bud);
  color: var(--ink);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.2;
}
.data-badge i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #C4374A;
  flex: 0 0 auto;
}
.readout-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 14px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #E37A45;
  box-shadow: 0 0 0 4px rgba(227,122,69,.2);
  display: inline-block;
  margin-right: 6px;
}
.bars {
  height: 120px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 8px 4px 0;
}
.bars span {
  flex: 1;
  border-radius: 8px 8px 3px 3px;
  background: #E37A45;
  min-height: 8px;
}
.bars span:nth-child(3n) { background: #F0B15A; }
.bars span:nth-child(5n) { background: #C4374A; }
.readout-main {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.readout-main span { color: var(--muted); font-size: 14px; }
.readout-main strong { font-size: 36px; letter-spacing: 0; }
.section-head { margin-bottom: 8px; }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 8px;
}
.pain-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px;
  box-shadow: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.pain-card:nth-child(1) { grid-column: 1 / span 3; margin-top: 36px; }
.pain-card:nth-child(2) { grid-column: 4 / span 3; margin-top: 0; }
.pain-card:nth-child(3) { grid-column: 7 / span 3; margin-top: 48px; }
.pain-card:nth-child(4) { grid-column: 10 / span 3; margin-top: 14px; }
.pain-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.index-no { display: block; color: var(--gold); font-size: 22px; margin-bottom: 8px; }
.pain-card p, .point p, .scene-card p, .entry-card p, .topic-card p, .device-card p, .caliber p, .quote p {
  color: var(--muted);
  margin-top: 8px;
}
.solution-grid {
  display: grid;
  grid-template-columns: 1.25fr .9fr;
  gap: 20px;
  align-items: stretch;
}
.solution-card, .result-card, .quote, .device-card, .topic-card, .scene-card, .entry-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
}
.solution-card { box-shadow: var(--shadow); }
.arc {
  width: 100%;
  height: 92px;
  margin: 18px 0 8px;
}
.point { padding: 16px 0; border-bottom: 1px solid var(--line); }
.point:first-child { padding-top: 0; }
.point:last-child { border-bottom: 0; padding-bottom: 0; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.step { position: relative; padding-right: 12px; }
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 28px;
  right: -10px;
  width: 22px;
  height: 2px;
  background: #E37A45;
}
.step-no { font-size: 40px; color: var(--gold); line-height: 1; display: block; margin-bottom: 10px; }
.step p { color: var(--muted); margin-top: 8px; }
.scene-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr 1fr;
  gap: 16px;
  align-items: stretch;
}
.scene-card { min-height: 220px; display: flex; flex-direction: column; justify-content: space-between; transition: transform .18s ease, box-shadow .18s ease; }
.scene-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.result-card { border-radius: var(--r-lg); box-shadow: var(--shadow); }
.mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 22px 0;
}
.mega {
  background: var(--bud);
  color: var(--ink);
  border-radius: var(--r-md);
  padding: 18px 16px;
}
.mega span { display: block; font-size: 13px; margin-bottom: 6px; }
.mega strong { font-size: 32px; line-height: 1.1; }
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
}
.compare-side { padding: 18px 20px; background: #24181B; }
.compare-side.is-after { background: #322226; }
.compare-side em {
  font-style: normal;
  font-family: var(--mono);
  color: var(--gold);
  display: block;
  margin-bottom: 6px;
}
.compare-side p { color: var(--muted); }
.entry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.entry-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  min-height: 240px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.entry-card::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 6px;
  background: var(--grad);
}
.entry-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; color: var(--text); }
.entry-card p { flex: 1; }
.quote-grid { display: grid; grid-template-columns: 1.45fr .8fr; gap: 16px; }
.quote-side { display: flex; flex-direction: column; gap: 16px; }
.quote q { font-size: 22px; line-height: 1.5; display: block; }
.quote-side q { font-size: 16px; }
.who { font-style: normal; display: block; margin-top: 14px; color: var(--gold); font-size: 14px; }
.who-list { border-top: 1px solid var(--line); }
.who-row {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 18px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  min-height: 72px;
}
.who-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--bud);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}
.who-row p { color: var(--muted); }
.topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.topic-wide { grid-column: 1 / -1; }
.topic-card {
  display: block;
  color: var(--text);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.topic-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; color: var(--text); }
.topic-card:hover h3 { text-decoration: underline; }
.news-list { display: flex; flex-direction: column; gap: 10px; }
.news-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  min-height: 72px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.news-row.plain { grid-template-columns: 76px minmax(0, 1fr) auto; }
.news-row time { font-family: var(--mono); color: var(--gold); font-variant-numeric: tabular-nums; }
.news-row h3 { font-size: 16px; }
.more { white-space: nowrap; min-height: 44px; display: inline-flex; align-items: center; }
.tag-fall {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--brick);
  color: var(--text);
  font-size: 13px;
}
.metric-row { display: flex; flex-wrap: wrap; gap: 10px; }
.metric-row .data-badge { min-height: 44px; padding: 8px 14px; font-size: 15px; }
.dist-note { color: var(--muted); margin: 8px 0 18px; max-width: 38em; }
.time-bars { display: flex; flex-direction: column; gap: 12px; margin-bottom: 22px; }
.time-bar { display: grid; grid-template-columns: 64px 1fr 64px; gap: 12px; align-items: center; }
.track { height: 12px; border-radius: var(--r-pill); background: rgba(246,236,230,.08); overflow: hidden; }
.track span { display: block; height: 100%; border-radius: inherit; background: #E37A45; }
.track span.hi { background: #F0B15A; }
.time-bar b { text-align: right; color: var(--bud); }
.device-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.device-card h3 { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.caliber-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
}
.caliber { padding: 28px; }
.caliber + .caliber { border-left: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--gold); font-family: var(--mono); font-size: 22px; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); padding: 0 0 16px; max-width: 38em; }
.cta-band {
  border-radius: var(--r-lg);
  background: var(--grad);
  color: var(--ink);
  padding: 36px 36px;
  box-shadow: var(--shadow);
}
.cta-band h2, .cta-band p { color: var(--ink); }
.cta-band .lead { color: rgba(42,33,24,.82); margin-bottom: 22px; }
.cta-band .btn-primary { background: var(--ink); color: var(--text); filter: none; }
.cta-band .btn-primary:hover { filter: brightness(1.15); }
.cta-band .btn-ghost { color: var(--ink); border-color: rgba(42,33,24,.45); }
.cta-band .btn-ghost:hover { color: var(--ink); border-color: var(--ink); }
.site-footer {
  background: #140e10;
  border-top: 1px solid var(--line);
  padding: 40px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.footer-brand { font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.footer-brand + p { color: var(--muted); max-width: 28em; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 18px; align-content: flex-start; }
.footer-links a { min-height: 44px; display: inline-flex; align-items: center; }
.copyright { margin-top: 22px; color: var(--muted); font-size: 13px; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}
@media (max-width: 1200px) {
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
}
@media (max-width: 1024px) {
  .hero-grid { gap: 20px; }
  .mega strong { font-size: 26px; }
  .quote q { font-size: 20px; }
}
@media (max-width: 992px) {
  .hero-grid, .solution-grid, .quote-grid, .entry-grid, .footer-grid, .device-grid, .scene-grid, .caliber-grid {
    grid-template-columns: 1fr;
  }
  .hero-copy, .hero-card-wrap { grid-column: auto; }
  .pain-grid { grid-template-columns: 1fr 1fr; }
  .pain-card { grid-column: auto !important; margin-top: 0 !important; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:not(:last-child)::after { display: none; }
  .caliber + .caliber { border-left: 0; border-top: 1px solid var(--line); }
  .topic-wide { grid-column: auto; }
}
@media (max-width: 768px) {
  :root { --pad: 40px; --r-lg: 20px; }
  .nav-toggle { display: inline-flex; }
  .nav-pills {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px 16px 16px;
    background: #24181B;
    border-bottom: 1px solid var(--line);
  }
  .nav-pills.is-open { display: flex; }
  .nav-pills .pill { width: 100%; }
  .steps, .mega-grid, .topic-grid, .pain-grid { grid-template-columns: 1fr; }
  .news-row, .news-row.plain {
    grid-template-columns: 1fr;
    align-items: flex-start;
    padding: 14px 16px;
  }
  .who-row { grid-template-columns: 1fr; gap: 8px; }
  .time-bar { grid-template-columns: 56px 1fr 52px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 24px); }
  .compare { grid-template-columns: 1fr; }
  .readout-main strong { font-size: 30px; }
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  body { font-size: 16px; }
}
@media (max-width: 480px) {
  .logo { font-size: 13px; }
  .nav-cta { height: 44px; min-height: 44px; padding: 0 12px; font-size: 13px; }
  .badge-float { position: static; margin-bottom: 8px; }
  .readout-card { padding: 20px 16px 18px; }
  .data-badge { white-space: normal; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category2 */
:root {
 --bg: #1C1416;
 --bg-alt: #24181B;
 --surface: #2A1E22;
 --line: rgba(246,236,230,.14);
 --text: #F6ECE6;
 --muted: #CDB8B0;
 --gold: #F0B15A;
 --bud: #E7F3D4;
 --ink: #2A2118;
 --brick: #8C3A3A;
 --grad: linear-gradient(135deg, #C4374A 0%, #E37A45 52%, #F0B15A 100%);
 --shadow: 0 16px 40px rgba(40,16,18,.28);
 --r-lg: 28px;
 --r-md: 20px;
 --r-pill: 999px;
 --pad: 72px;
 --mono: ui-monospace, "Sarasa Mono SC", monospace;
 --sans: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--bg);
 color: var(--text);
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.75;
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible {
 outline: 2px solid var(--bud);
 outline-offset: 3px;
}
::selection { background: #C4374A; color: #F6ECE6; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
p { max-width: 38em; }
h1, h2, h3 { font-weight: 700; line-height: 1.28; margin: 0; }
h1 { font-size: 40px; letter-spacing: 0; }
h2 { font-size: 28px; margin-bottom: 12px; }
h3 { font-size: 18px; }
.lead, .muted { color: var(--muted); }
.num, .step-no, .mega, .data-badge, time {
 font-family: var(--mono);
 font-variant-numeric: tabular-nums;
 font-feature-settings: "tnum" 1;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(28,20,22,.96);
 border-bottom: 1px solid var(--line);
}
.nav-bar {
 height: 72px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 position: relative;
}
.logo {
 color: var(--text);
 font-weight: 700;
 font-size: 18px;
 line-height: 1.2;
 white-space: nowrap;
 text-decoration: none;
}
.logo:hover { color: var(--gold); text-decoration: none; }
.nav-pills { display: flex; align-items: center; gap: 10px; }
.pill {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 16px;
 border-radius: var(--r-pill);
 border: 1px solid rgba(246,236,230,.32);
 color: var(--text);
 background: transparent;
 text-decoration: none;
}
.pill:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.pill.is-current {
 border: 2px solid transparent;
 background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--grad) border-box;
 color: var(--text);
}
.pill.is-current:hover { color: var(--gold); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-toggle {
 display: none;
 min-width: 44px;
 min-height: 44px;
 padding: 0 14px;
 border-radius: var(--r-pill);
 border: 1px solid rgba(246,236,230,.32);
 background: transparent;
 color: var(--text);
 cursor: pointer;
}
.nav-toggle:hover { border-color: var(--gold); color: var(--gold); }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 48px;
 height: 48px;
 padding: 0 22px;
 border-radius: var(--r-pill);
 border: 1px solid transparent;
 font-weight: 700;
 line-height: 1;
 cursor: pointer;
 text-decoration: none;
 transition: transform .18s ease, filter .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
 background: var(--grad);
 color: var(--ink);
 box-shadow: var(--shadow);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); filter: brightness(.98); }
.btn-ghost {
 background: transparent;
 color: var(--text);
 border-color: rgba(246,236,230,.45);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }
.btn-ghost:active { transform: translateY(1px); }
.data-badge {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 36px;
 padding: 6px 12px;
 border-radius: var(--r-pill);
 background: var(--bud);
 color: var(--ink);
 font-size: 14px;
 font-weight: 650;
 line-height: 1.2;
 white-space: nowrap;
}
.data-badge i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: #C4374A;
 flex: 0 0 auto;
}
.data-badge i.fall { background: var(--brick); }
section { padding: var(--pad) 0; }
.band-alt { background: var(--bg-alt); }
.crumb { color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.crumb a { color: var(--gold); }
.peak-head-row {
 display: flex;
 align-items: flex-end;
 justify-content: space-between;
 gap: 24px;
}
.peak-head .lead { margin: 14px 0 0; }
.status-points { display: flex; gap: 18px; flex-shrink: 0; padding-bottom: 6px; }
.status-dot {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 44px;
 font-size: 15px;
 color: var(--text);
}
.status-dot i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: #E37A45;
}
.status-dot.peak i { background: #C4374A; }
.compare-note { color: var(--muted); margin: 0 0 18px; }
.compare-board {
 display: grid;
 grid-template-columns: 1fr 1px 1fr;
 background: var(--surface);
 border: 1px solid var(--line);
 border-radius: var(--r-lg);
 box-shadow: var(--shadow);
 overflow: hidden;
}
.compare-col { padding: 32px 28px 28px; }
.compare-col p { color: var(--muted); margin: 10px 0 0; }
.col-label {
 display: block;
 margin-top: 22px;
 color: var(--muted);
 font-size: 14px;
}
.mega {
 display: block;
 margin: 6px 0 16px;
 font-size: 56px;
 line-height: 1;
 letter-spacing: 0;
}
.v-split { background: var(--line); }
.mini-bars {
 display: flex;
 align-items: flex-end;
 gap: 6px;
 height: 46px;
 margin-top: 22px;
}
.mini-bars span {
 flex: 1;
 border-radius: 999px 999px 4px 4px;
 background: #C4374A;
 opacity: .85;
}
.mini-bars span:nth-child(1) { height: 28%; background: #8C3A3A; }
.mini-bars span:nth-child(2) { height: 46%; background: #E37A45; }
.mini-bars span:nth-child(3) { height: 100%; background: #F0B15A; }
.mini-bars span:nth-child(4) { height: 62%; background: #E37A45; }
.mini-bars span:nth-child(5) { height: 38%; background: #C4374A; }
.peak-rows {
 list-style: none;
 margin: 20px 0 0;
 padding: 0;
 border: 1px solid var(--line);
 border-radius: var(--r-md);
 overflow: hidden;
 background: var(--surface);
}
.peak-rows li {
 display: grid;
 grid-template-columns: 88px 1fr auto;
 gap: 12px;
 align-items: center;
 min-height: 64px;
 padding: 10px 18px;
 border-bottom: 1px solid var(--line);
 transition: background .18s ease;
}
.peak-rows li:last-child { border-bottom: 0; }
.peak-rows li:hover { background: rgba(246,236,230,.04); }
.peak-rows time { color: var(--gold); font-size: 16px; }
.peak-rows h3 { font-size: 17px; }
.more-line {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
}
.more-line p { margin: 0; color: var(--muted); }
.vsteps { list-style: none; margin: 22px 0 0; padding: 0; max-width: 760px; }
.vsteps li {
 display: grid;
 grid-template-columns: 72px 1fr;
 gap: 16px;
 position: relative;
 padding-bottom: 26px;
}
.vsteps li::before {
 content: "";
 position: absolute;
 left: 27px;
 top: 56px;
 bottom: 4px;
 width: 1px;
 background: var(--line);
}
.vsteps li:last-child { padding-bottom: 0; }
.vsteps li:last-child::before { display: none; }
.step-no {
 width: 56px;
 height: 56px;
 border-radius: 50%;
 display: flex;
 align-items: center;
 justify-content: center;
 background: var(--bud);
 color: var(--ink);
 font-size: 18px;
}
.vsteps h3 { margin-bottom: 6px; }
.vsteps p { margin: 0; color: var(--muted); }
.scene-strip {
 display: flex;
 gap: 14px;
 overflow-x: auto;
 padding: 6px 2px 12px;
 scroll-snap-type: x mandatory;
 -webkit-overflow-scrolling: touch;
}
.scene-chip {
 flex: 0 0 300px;
 scroll-snap-align: start;
 min-height: 64px;
 padding: 10px 18px;
 border-radius: var(--r-pill);
 border: 1px solid var(--line);
 background: var(--surface);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 transition: transform .18s ease, border-color .18s ease;
}
.scene-chip:hover { transform: translateY(-1px); border-color: rgba(240,177,90,.6); }
.scene-chip strong { font-size: 16px; }
.scene-chip span { color: var(--muted); font-size: 14px; }
.faq-list { border-top: 1px solid var(--line); margin-top: 8px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
 min-height: 56px;
 padding: 14px 0;
 cursor: pointer;
 font-weight: 700;
 font-size: 18px;
 line-height: 1.4;
 list-style: none;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "+";
 font-family: var(--mono);
 color: var(--gold);
 font-size: 22px;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 0 0 16px; color: var(--muted); }
.cta-band {
 background: var(--grad);
 color: var(--ink);
 border-radius: var(--r-lg);
 padding: 36px 32px;
 box-shadow: var(--shadow);
}
.cta-band h2, .cta-band p { color: var(--ink); }
.cta-band p { margin: 10px 0 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.cta-band .btn-primary { background: var(--ink); color: var(--bud); box-shadow: none; }
.cta-band .btn-primary:hover { filter: brightness(1.12); }
.cta-band .btn-ghost { color: var(--ink); border-color: rgba(42,33,24,.45); }
.cta-band .btn-ghost:hover { color: var(--ink); border-color: var(--ink); background: rgba(255,255,255,.18); }
.site-footer {
 border-top: 1px solid var(--line);
 background: #160f11;
 padding: 8px 0 28px;
}
.footer-grid {
 display: grid;
 grid-template-columns: 1.2fr .8fr;
 gap: 28px;
 padding-top: 36px;
}
.footer-brand { font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.site-footer p { color: var(--muted); margin: 0; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.footer-links a {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 color: var(--gold);
}
.copyright { font-size: 13px; margin-top: 18px; }
@media (max-width: 1200px) {
 .container { width: min(1120px, calc(100% - 28px)); }
}
@media (max-width: 992px) {
 .compare-board { grid-template-columns: 1fr; }
 .v-split { height: 1px; }
 .mega { font-size: 48px; }
}
@media (max-width: 768px) {
 :root { --pad: 40px; --r-lg: 20px; }
 h1 { font-size: 32px; }
 h2 { font-size: 24px; }
 .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
 .nav-pills {
 display: none;
 position: absolute;
 top: 72px;
 left: 0;
 right: 0;
 flex-direction: column;
 align-items: stretch;
 gap: 8px;
 padding: 12px 16px 16px;
 background: rgba(28,20,22,.98);
 border-bottom: 1px solid var(--line);
}
 .nav-pills.is-open { display: flex; }
 .peak-head-row, .more-line, .footer-grid { flex-direction: column; align-items: flex-start; }
 .footer-grid { display: grid; grid-template-columns: 1fr; }
 .status-points { padding-bottom: 0; }
 .compare-col { padding: 24px 20px; }
 .cta-band { padding: 28px 20px; }
}
@media (max-width: 520px) {
 .peak-rows li { grid-template-columns: 72px 1fr; }
 .peak-rows .data-badge { grid-column: 2; justify-self: start; }
 .scene-chip { flex-basis: 240px; }
}
@media (max-width: 480px) {
 .more-line .btn, .cta-actions .btn { width: 100%; }
 .mega { font-size: 40px; }
 body { font-size: 16px; }
}

/* roulang page: category1 */
:root {
 --bg: #1C1416;
 --bg-alt: #24181B;
 --surface: #2A1E22;
 --line: rgba(246,236,230,.14);
 --text: #F6ECE6;
 --muted: #CDB8B0;
 --gold: #F0B15A;
 --bud: #E7F3D4;
 --ink: #2A2118;
 --brick: #8C3A3A;
 --grad: linear-gradient(135deg, #C4374A 0%, #E37A45 52%, #F0B15A 100%);
 --shadow: 0 16px 40px rgba(40,16,18,.28);
 --r-lg: 28px;
 --r-md: 20px;
 --r-pill: 999px;
 --pad: 72px;
 --mono: ui-monospace, "Sarasa Mono SC", monospace;
 --sans: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--bg);
 color: var(--text);
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.75;
 color-scheme: dark;
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
 outline: 2px solid var(--bud);
 outline-offset: 3px;
}
h1, h2, h3 {
 font-weight: 700;
 line-height: 1.28;
 margin: 0;
 text-align: left;
}
p { margin: 0; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.lead, .prose { max-width: 38em; color: var(--muted); }
.num, .badge-num, .track-val, .day-date, .record-row time {
 font-family: var(--mono);
 font-variant-numeric: tabular-nums;
 font-feature-settings: "tnum" 1;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(28,20,22,.96);
 border-bottom: 1px solid var(--line);
}
.nav-bar {
 height: 72px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 position: relative;
}
.logo {
 color: var(--text);
 font-weight: 700;
 font-size: 18px;
 line-height: 1.2;
 white-space: nowrap;
 text-decoration: none;
}
.logo:hover { color: var(--gold); text-decoration: none; }
.nav-pills { display: flex; align-items: center; gap: 10px; }
.pill {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 16px;
 border-radius: var(--r-pill);
 border: 1px solid rgba(246,236,230,.32);
 color: var(--text);
 background: transparent;
 text-decoration: none;
}
.pill:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.pill.is-current {
 border: 1px solid transparent;
 background:
 linear-gradient(#1C1416, #1C1416) padding-box,
 var(--grad) border-box;
 color: var(--text);
}
.pill.is-current:hover { color: var(--gold); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-toggle {
 display: none;
 min-width: 44px;
 min-height: 44px;
 padding: 0 14px;
 border-radius: var(--r-pill);
 border: 1px solid rgba(246,236,230,.32);
 background: transparent;
 color: var(--text);
 cursor: pointer;
}
.nav-toggle:hover { border-color: var(--gold); color: var(--gold); }
.nav-toggle:active { transform: translateY(1px); }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 48px;
 height: 48px;
 padding: 0 22px;
 border-radius: var(--r-pill);
 border: 1px solid transparent;
 font-weight: 700;
 line-height: 1;
 cursor: pointer;
 text-decoration: none;
 transition: transform .18s ease, filter .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
 background: var(--grad);
 color: var(--ink);
 box-shadow: var(--shadow);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); filter: brightness(.98); }
.btn-ghost, .btn-line, .btn-ink { background: transparent; }
main > section { padding: var(--pad) 0; }
main > section:nth-child(even) { background: var(--bg-alt); }
main > section:nth-child(odd) { background: var(--bg); }
.day-intro { padding-top: 48px; padding-bottom: 36px; }
.intro-row {
 display: flex;
 align-items: flex-end;
 justify-content: space-between;
 gap: 24px;
}
.intro-copy { min-width: 0; }
.intro-copy h1 { font-size: clamp(32px, 4vw, 46px); max-width: 12em; }
.intro-copy .lead { margin-top: 12px; font-size: 17px; }
.day-mark {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 44px;
 padding: 0 16px;
 border-radius: var(--r-pill);
 background: var(--bud);
 color: var(--ink);
 font-weight: 700;
 flex: 0 0 auto;
}
.day-mark i, .data-badge i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: #C4374A;
 flex: 0 0 auto;
}
.section-title { margin-bottom: 12px; font-size: clamp(26px, 3vw, 34px); }
.prose { margin-bottom: 22px; }
.tool-bar {
 display: flex;
 flex-wrap: wrap;
 align-items: flex-end;
 gap: 16px 22px;
 padding: 16px 18px;
 background: var(--surface);
 border: 1px solid var(--line);
 border-radius: var(--r-md);
}
.tool-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.tool-label { color: var(--muted); font-size: 14px; line-height: 1.2; }
.date-pair { display: flex; align-items: center; gap: 8px; }
.date-pair span { color: var(--muted); }
input[type="date"] {
 min-height: 44px;
 height: 44px;
 padding: 0 12px;
 border-radius: var(--r-pill);
 border: 1px solid rgba(246,236,230,.32);
 background: var(--bg);
 color: var(--text);
}
.seg { display: inline-flex; padding: 4px; gap: 4px; border-radius: var(--r-pill); border: 1px solid var(--line); background: var(--bg); }
.seg-btn {
 min-height: 44px;
 padding: 0 16px;
 border: 0;
 border-radius: var(--r-pill);
 background: transparent;
 color: var(--text);
 cursor: pointer;
}
.seg-btn:hover { color: var(--gold); }
.seg-btn.is-on { background: var(--bud); color: var(--ink); font-weight: 700; }
.seg-btn:active { transform: translateY(1px); }
.checkline {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 min-height: 44px;
 cursor: pointer;
}
.checkline input {
 appearance: none;
 width: 22px;
 height: 22px;
 margin: 0;
 border-radius: 7px;
 border: 1px solid rgba(246,236,230,.45);
 background: var(--bg);
 display: grid;
 place-items: center;
}
.checkline input:checked { background: var(--bud); border-color: var(--bud); }
.checkline input:checked::after {
 content: "";
 width: 10px;
 height: 6px;
 border-left: 2px solid var(--ink);
 border-bottom: 2px solid var(--ink);
 transform: rotate(-45deg) translateY(-1px);
}
.day-list { display: flex; flex-direction: column; gap: 12px; }
.day-row {
 display: grid;
 grid-template-columns: 96px minmax(0, 1fr) auto;
 gap: 18px;
 align-items: center;
 padding: 22px 24px;
 background: var(--surface);
 border: 1px solid var(--line);
 border-radius: var(--r-lg);
 transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.day-row:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(240,177,90,.45); }
.day-date { font-size: 20px; letter-spacing: 0; }
.day-main h3 { font-size: 20px; }
.day-main p { color: var(--muted); margin-top: 6px; max-width: 38em; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.mini-tag {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 10px;
 border-radius: var(--r-pill);
 background: var(--bud);
 color: var(--ink);
 font-size: 13px;
 font-weight: 700;
}
.mini-tag.is-down { background: rgba(140,58,58,.22); color: #F6ECE6; }
.metric-side { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.badge-cap { color: var(--muted); font-size: 13px; }
.data-badge {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 36px;
 padding: 6px 12px;
 border-radius: var(--r-pill);
 background: var(--bud);
 color: var(--ink);
 font-size: 14px;
 font-weight: 700;
 line-height: 1.2;
 white-space: nowrap;
}
.badge-num { font-size: 18px; }
.empty-note {
 display: none;
 margin-top: 14px;
 padding: 18px 20px;
 border-radius: var(--r-md);
 border: 1px dashed var(--line);
 color: var(--muted);
}
.empty-note.is-show { display: block; }
.more-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.more-row .prose { margin: 10px 0 0; }
.read-grid {
 display: grid;
 grid-template-columns: minmax(0, 1.3fr) minmax(240px, .7fr);
 gap: 28px;
 align-items: start;
}
.read-sticky { position: sticky; top: 96px; }
.read-sticky .prose { margin-top: 14px; }
.badge-stack {
 display: flex;
 flex-direction: column;
 align-items: flex-start;
 gap: 12px;
 padding: 28px;
 background: var(--surface);
 border: 1px solid var(--line);
 border-radius: var(--r-lg);
}
.badge-stack .data-badge { min-height: 44px; padding: 8px 14px; }
.track-panel {
 position: relative;
 padding: 28px 20px 18px;
 background: var(--surface);
 border: 1px solid var(--line);
 border-radius: var(--r-lg);
 overflow: hidden;
}
.track-scroll { overflow-x: auto; }
.track {
 position: relative;
 display: grid;
 grid-template-columns: repeat(7, minmax(72px, 1fr));
 align-items: end;
 min-height: 210px;
 z-index: 1;
}
.track::before {
 content: "";
 position: absolute;
 left: 4%;
 right: 4%;
 bottom: 42px;
 height: 2px;
 background: rgba(246,236,230,.2);
}
.track-arc {
 position: absolute;
 left: 24px;
 right: 24px;
 top: 36px;
 width: calc(100% - 48px);
 height: 90px;
 z-index: 0;
}
.track-item {
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: flex-end;
 gap: 8px;
 min-height: 180px;
}
.track-val { color: var(--muted); font-size: 13px; min-height: 18px; }
.track-item.is-high .track-val { color: var(--text); font-size: 16px; }
.track-dot {
 width: 16px;
 height: 16px;
 border-radius: 50%;
 background: var(--bud);
 box-shadow: 0 0 0 4px rgba(28,20,22,.65);
}
.track-item.is-high .track-dot {
 width: 28px;
 height: 28px;
 background: #F0B15A;
 box-shadow: 0 0 0 6px rgba(240,177,90,.18);
}
.track-day { color: var(--muted); font-size: 14px; }
.track-item.is-high .track-day { color: var(--text); font-weight: 700; }
.lift-1 { margin-bottom: 18px; }
.lift-2 { margin-bottom: 36px; }
.lift-3 { margin-bottom: 52px; }
.lift-4 { margin-bottom: 70px; }
.lift-5 { margin-bottom: 92px; }
.record-list { border-top: 1px solid var(--line); }
.record-row {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 64px;
 padding: 14px 0;
 border-bottom: 1px solid var(--line);
}
.record-row h3 { font-size: 18px; font-weight: 700; }
.record-row time { color: var(--muted); font-size: 16px; }
.thin-cta {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 22px;
 padding: 22px 26px;
 border-radius: var(--r-lg);
 background: var(--grad);
 color: var(--ink);
 box-shadow: var(--shadow);
}
.thin-cta h2, .thin-cta p { color: var(--ink); }
.thin-cta p { margin-top: 8px; max-width: 36em; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex: 0 0 auto; }
.btn-ink {
 background: var(--ink);
 color: var(--bud);
 border-color: var(--ink);
}
.btn-ink:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn-ink:active { transform: translateY(1px); }
.btn-line {
 background: transparent;
 color: var(--ink);
 border-color: rgba(42,33,24,.55);
}
.btn-line:hover { background: rgba(42,33,24,.08); transform: translateY(-1px); }
.btn-line:active { transform: translateY(1px); }
.site-footer {
 background: #140E10;
 border-top: 1px solid var(--line);
}
.footer-grid {
 display: grid;
 grid-template-columns: 1.2fr .8fr;
 gap: 28px;
 padding: 40px 0 12px;
}
.footer-brand { font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.footer-grid p { color: var(--muted); max-width: 36em; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.footer-links a {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 color: var(--gold);
}
.footer-links a:hover { text-decoration: underline; }
.copyright {
 color: var(--muted);
 font-size: 13px;
 border-top: 1px solid var(--line);
 margin: 8px 0 0;
 padding: 16px 0 28px;
}
@media (max-width: 992px) {
 .read-grid { grid-template-columns: 1fr; }
 .read-sticky { position: static; }
 .intro-row, .more-row, .thin-cta { align-items: flex-start; }
}
@media (max-width: 768px) {
 :root { --pad: 40px; --r-lg: 20px; }
 .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
 .nav-pills {
 display: none;
 position: absolute;
 left: 0;
 right: 0;
 top: 72px;
 z-index: 50;
 flex-direction: column;
 align-items: stretch;
 gap: 8px;
 padding: 8px 16px 16px;
 background: rgba(28,20,22,.98);
 border-bottom: 1px solid var(--line);
 }
 .nav-pills.is-open { display: flex; }
 .pill { width: 100%; }
 .day-intro { padding-top: 32px; }
 .footer-grid, .intro-row, .more-row, .thin-cta { grid-template-columns: 1fr; display: flex; flex-direction: column; }
 .day-row { grid-template-columns: 72px minmax(0, 1fr); }
 .metric-side { grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; }
}
@media (max-width: 520px) {
 body { font-size: 16px; }
 .logo { font-size: 15px; }
 .more-row .btn, .cta-actions .btn, .date-pair, input[type="date"], .seg, .checkline { width: 100%; }
 .date-pair input { flex: 1; min-width: 0; }
 .cta-actions, .seg { flex-direction: column; }
 .day-row { grid-template-columns: 1fr; padding: 18px; }
 .data-badge { white-space: normal; }
 .record-row { align-items: flex-start; flex-direction: column; }
 .nav-cta { padding: 0 14px; }
}