/* roulang page: index */
:root {
  --bg: #F3F0E8;
  --bg-alt: #E7E1D4;
  --ink: #1C3A32;
  --cabin: #121816;
  --copper: #C46A3A;
  --sprout: #7E9A6B;
  --text: #1A1C1B;
  --muted: #5E645F;
  --line: #D9D3C7;
  --paper: #F3F0E8;
  --clay: #8C4A32;
  --light: #F3F0E8;
  --soft: #C9C3B6;
  --serif: "Source Han Serif SC", "Songti SC", SimSun, "Noto Serif SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius: 2px;
  --space: 72px;
}
*, *::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: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; border-radius: var(--radius); }
button { background: transparent; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0;
  overflow-wrap: break-word;
}
::selection { background: var(--ink); color: var(--light); }
:focus-visible { outline: 1px solid var(--ink); outline-offset: 3px; }
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.draw {
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: left bottom;
  background-size: 0 1px;
  transition: background-size 180ms linear;
}
.draw:hover, .draw:focus-visible { background-size: 100% 1px; }
.site-header {
  position: relative;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.logo { display: flex; align-items: baseline; gap: 10px; color: var(--ink); }
.logo-main { font-family: var(--serif); font-size: 26px; font-weight: 700; letter-spacing: -0.04em; }
.logo-sub { font-family: var(--serif); font-size: 14px; color: var(--muted); letter-spacing: 0.08em; }
.logo-sub::before { content: ""; display: inline-block; width: 12px; height: 1px; background: var(--sprout); margin-right: 8px; vertical-align: middle; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
  font-size: 15px;
  color: var(--text);
  padding: 8px 0;
}
.site-nav a[aria-current="page"] { color: var(--copper); }
.nav-toggle {
  display: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  padding: 6px 12px;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 180ms linear, color 180ms linear, transform 180ms linear;
}
.nav-toggle:hover { background: var(--copper); border-color: var(--copper); color: var(--light); transform: translateY(-1px); }
.nav-toggle:active { transform: translateY(0); }
.crumb-bar { border-top: 1px solid var(--line); }
.crumb-row {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 40px;
}
.crumb-back { font-family: var(--serif); font-size: 12px; color: var(--muted); flex: 0 0 auto; }
.crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  white-space: nowrap;
  font-family: var(--serif);
  font-size: 12px;
  color: var(--muted);
  padding: 8px 0;
  scrollbar-width: thin;
}
.crumbs [aria-current="page"] { color: var(--ink); }
.hair { width: 18px; height: 1px; background: var(--line); flex: 0 0 auto; }
.hero { padding: 56px 0 28px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.72fr);
  gap: 56px;
  align-items: end;
}
h1 { font-size: clamp(34px, 5.4vw, 68px); color: var(--ink); max-width: 8em; }
.subline { margin: 18px 0 0; font-size: 18px; line-height: 1.75; color: var(--text); }
.lead { margin-top: 22px; max-width: 38em; color: var(--text); font-size: 17px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--copper);
  color: var(--copper);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 180ms linear, color 180ms linear, border-color 180ms linear, transform 180ms linear;
}
.btn:hover { background: var(--copper); color: var(--light); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.cabin { background: var(--cabin); color: var(--light); padding: 8px 26px 12px; border-radius: var(--radius); }
.cabin-kicker { font-family: var(--serif); font-size: 13px; letter-spacing: 0.14em; color: var(--sprout); margin: 18px 0 0; }
.fact-list { list-style: none; margin: 8px 0 0; padding: 0; }
.fact-list li { border-top: 1px solid rgba(217, 211, 199, 0.28); padding: 16px 0 14px; display: grid; grid-template-columns: 42px 1fr; gap: 8px; }
.fact-no { font-family: var(--serif); color: var(--copper); font-size: 22px; line-height: 1.2; }
.fact-list p { margin: 0; font-size: 15px; line-height: 1.75; color: var(--soft); }
.block { padding: var(--space) 0; border-top: 1px solid var(--line); }
.block.alt { background: var(--bg-alt); }
.block.dark { background: var(--cabin); color: var(--light); border-top-color: var(--cabin); }
.sec-title { font-size: clamp(28px, 3vw, 40px); color: var(--ink); max-width: 16em; }
.dark .sec-title, .dark .sec-lead { color: var(--light); }
.sec-lead { margin-top: 16px; max-width: 42em; color: var(--muted); font-size: 16px; line-height: 1.8; }
.dark .sec-lead { color: var(--soft); }
.pain-list { list-style: none; margin: 36px 0 0; padding: 0; }
.pain-item { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 20px; padding: 28px 0; border-top: 1px solid var(--line); }
.pain-item:last-child { border-bottom: 1px solid var(--line); }
.pain-no { font-family: var(--serif); font-size: clamp(48px, 6vw, 72px); line-height: 0.9; color: var(--ink); letter-spacing: -0.05em; }
.pain-item h3 { font-size: 24px; margin-bottom: 10px; }
.pain-item p { color: var(--muted); font-size: 16px; }
.path { display: flex; flex-wrap: wrap; margin-top: 36px; border-top: 1px solid var(--line); }
.path-item { flex: 1 1 200px; padding: 22px 18px 20px 0; border-bottom: 1px solid var(--line); position: relative; }
.path-item + .path-item { padding-left: 18px; }
.path-step { font-family: var(--serif); color: var(--copper); font-size: 13px; letter-spacing: 0.12em; }
.path-item strong { display: block; margin: 10px 0 6px; font-family: var(--serif); font-size: 22px; font-weight: 700; letter-spacing: -0.03em; }
.path-item span { display: block; color: var(--muted); font-size: 15px; line-height: 1.7; }
.steps { list-style: none; margin: 32px 0 0; padding: 0; max-width: 820px; }
.step { display: grid; grid-template-columns: 18px 72px minmax(0, 1fr); gap: 8px; padding: 8px 0 22px; }
.rail { width: 1px; background: var(--line); justify-self: center; transform-origin: top center; }
.step.is-current .rail { background: var(--sprout); }
@media (prefers-reduced-motion: no-preference) {
  .step.is-current .rail { animation: grow 700ms linear forwards; transform: scaleY(0); }
}
@keyframes grow { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.step-no { font-family: var(--serif); font-size: 32px; color: var(--ink); line-height: 1; }
.step.is-current .step-no { color: var(--copper); }
.step h3 { font-size: 22px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 16px; }
.scene-grid { margin-top: 36px; display: grid; grid-template-columns: 1.45fr 0.85fr; gap: 18px; }
.scene { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; background: transparent; min-height: 100%; display: flex; flex-direction: column; }
.scene-wide { background: var(--cabin); color: var(--light); border-color: var(--cabin); }
.scene h3 { font-size: 28px; }
.scene-wide h3 { color: var(--light); }
.scene p { margin-top: 14px; color: var(--muted); }
.scene-wide p { color: var(--soft); }
.scene a { margin-top: auto; padding-top: 22px; color: var(--copper); font-family: var(--serif); }
.stat-row { margin-top: 12px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { padding: 28px 16px 8px 0; border-top: 1px solid var(--line); }
.stat-num { font-family: var(--serif); font-size: clamp(42px, 5vw, 68px); color: var(--copper); line-height: 1; letter-spacing: -0.04em; margin: 0; }
.stat-unit { font-family: var(--sans); font-size: 14px; color: var(--muted); margin-left: 6px; letter-spacing: 0; }
.stat-label { margin: 10px 0 0; color: var(--text); font-size: 16px; }
.quote-list { list-style: none; margin: 28px 0 0; padding: 0; max-width: 860px; }
.quote { border-top: 1px solid var(--line); padding: 28px 0; }
.quote:last-child { border-bottom: 1px solid var(--line); }
.mark { font-family: var(--serif); font-size: 64px; line-height: 0.6; color: var(--sprout); display: block; margin-bottom: 12px; }
.quote p { font-family: var(--serif); font-size: 22px; line-height: 1.7; color: var(--ink); }
.quote cite { display: block; margin-top: 12px; font-style: normal; color: var(--muted); font-size: 14px; }
.people { margin: 28px 0 0; }
.person { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.person:last-child { border-bottom: 1px solid var(--line); }
.person dt { font-family: var(--serif); font-size: 22px; color: var(--ink); }
.person dd { margin: 0; color: var(--muted); }
.news-list { list-style: none; margin: 28px 0 0; padding: 0; }
.news-item { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); transition: background 180ms linear; }
.news-item:last-child { border-bottom: 1px solid var(--line); }
.news-item:hover { background: rgba(28, 58, 50, 0.03); }
.news-date { font-family: var(--serif); color: var(--copper); font-size: 15px; padding-top: 4px; }
.news-title { font-family: var(--serif); font-size: 22px; color: var(--ink); font-weight: 700; }
.news-sum { margin-top: 6px; color: var(--muted); font-size: 16px; }
.meter { margin-top: 32px; position: relative; }
.meter-ticks { height: 18px; background-image: repeating-linear-gradient(90deg, var(--sprout) 0 1px, transparent 1px 28px); opacity: 0.85; }
.meter-grid { display: grid; grid-template-columns: 1.3fr 1fr 0.8fr; border-top: 1px solid rgba(217, 211, 199, 0.3); }
.meter-item { padding: 26px 20px 8px 0; }
.meter-item + .meter-item { padding-left: 20px; border-left: 1px solid rgba(217, 211, 199, 0.25); }
.meter-item b { display: block; font-family: var(--serif); font-weight: 700; font-size: clamp(40px, 5vw, 64px); color: var(--copper); letter-spacing: -0.04em; line-height: 1; }
.meter-item span { display: block; margin-top: 8px; color: var(--soft); }
.compare { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.compare-col { padding: 22px 28px 8px 0; }
.compare-col + .compare-col { padding-left: 28px; border-left: 1px solid var(--line); }
.compare-col h3 { font-size: 24px; margin-bottom: 8px; }
.compare-col li { margin: 12px 0; padding-top: 12px; border-top: 1px solid var(--line); color: var(--muted); list-style: none; }
.compare ul { margin: 0; padding: 0; }
.entry-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 28px;
}
.entry-bar .sec-title { font-size: clamp(28px, 3vw, 34px); }
.entry-bar p { margin: 8px 0 0; color: var(--muted); max-width: 40em; }
.entry-link { flex: 0 0 auto; color: var(--copper); font-family: var(--serif); font-size: 18px; }
.faq { margin-top: 20px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-size: 20px;
  padding: 18px 28px 18px 0;
  position: relative;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "＋"; position: absolute; right: 0; top: 16px; color: var(--copper); font-family: var(--serif); }
.faq-item[open] summary { color: var(--copper); }
.faq-item[open] summary::after { content: "－"; }
.faq-item p { color: var(--muted); padding: 0 0 18px; max-width: 46em; }
.cta-band { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; }
.cta-band p { margin-top: 14px; color: var(--soft); max-width: 36em; }
.site-footer { background: var(--bg); border-top: 1px solid var(--line); padding: 36px 0 28px; }
.foot-grid { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
.foot-brand { font-family: var(--serif); font-size: 22px; color: var(--ink); margin: 0; }
.foot-brand span { display: inline-block; margin-left: 8px; font-size: 14px; color: var(--muted); letter-spacing: 0.08em; }
.foot-note { margin-top: 8px; color: var(--muted); font-size: 14px; }
.foot-links { display: flex; gap: 22px; list-style: none; margin: 8px 0 0; padding: 0; }
.copyline { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
@media (max-width: 1200px) {
  .container { width: min(1120px, calc(100% - 40px)); }
  .hero-grid { gap: 36px; }
}
@media (max-width: 960px) {
  .hero-grid, .scene-grid, .compare, .meter-grid, .cta-band { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .meter-item + .meter-item, .compare-col + .compare-col, .path-item + .path-item { border-left: 0; padding-left: 0; }
  .compare-col + .compare-col { border-top: 1px solid var(--line); padding-top: 22px; }
  h1 { max-width: none; }
}
@media (max-width: 768px) {
  :root { --space: 52px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 20px 16px;
    z-index: 5;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; padding: 12px 0; border-top: 1px solid var(--line); }
  .pain-item, .person, .news-item, .step { grid-template-columns: 1fr; gap: 6px; }
  .pain-no { font-size: 48px; }
  .entry-bar, .foot-grid { flex-direction: column; align-items: flex-start; }
  .hero { padding-top: 36px; }
}
@media (max-width: 520px) {
  .container { width: min(1120px, calc(100% - 28px)); }
  .stat-row { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .logo-main { font-size: 22px; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .subline, .lead, .sec-lead { font-size: 16px; }
  .quote p { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .step.is-current .rail { transform: none; }
}

/* roulang page: category1 */
:root {
 --bg: #F3F0E8;
 --bg-alt: #E7E1D4;
 --ink: #1C3A32;
 --cabin: #121816;
 --copper: #C46A3A;
 --sprout: #7E9A6B;
 --text: #1A1C1B;
 --muted: #5E645F;
 --line: #D9D3C7;
 --paper: #F3F0E8;
 --clay: #8C4A32;
 --light: #F3F0E8;
 --soft: #C9C3B6;
 --serif: "Source Han Serif SC", "Songti SC", SimSun, "Noto Serif SC", serif;
 --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
 --radius: 2px;
 --space: 72px;
}
:root { --space: 52px; }
/* roulang page: category1 */
:root {
 --bg: #F3F0E8;
 --bg-alt: #E7E1D4;
 --ink: #1C3A32;
 --cabin: #121816;
 --copper: #C46A3A;
 --sprout: #7E9A6B;
 --text: #1A1C1B;
 --muted: #5E645F;
 --line: #D9D3C7;
 --paper: #F3F0E8;
 --clay: #8C4A32;
 --light: #F3F0E8;
 --soft: #C9C3B6;
 --serif: "Source Han Serif SC", "Songti SC", SimSun, "Noto Serif SC", serif;
 --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
 --radius: 2px;
 --space: 72px;
}
*, *::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: 1.8;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; border-radius: var(--radius); }
button { background: transparent; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1.15em; }
h1, h2, h3 { font-family: var(--serif); letter-spacing: -0.04em; font-weight: 700; }
[hidden] { display: none !important; }
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.site-header {
 position: relative;
 background: var(--bg);
 border-bottom: 1px solid var(--line);
 z-index: 4;
}
.nav-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 min-height: 72px;
 gap: 24px;
}
.logo { display: flex; align-items: baseline; gap: 10px; color: var(--ink); }
.logo-main { font-family: var(--serif); font-size: 26px; font-weight: 700; letter-spacing: -0.04em; }
.logo-sub { font-family: var(--serif); font-size: 14px; color: var(--muted); letter-spacing: 0.08em; }
.logo-sub::before { content: ""; display: inline-block; width: 12px; height: 1px; background: var(--sprout); margin-right: 8px; vertical-align: middle; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
 font-size: 15px;
 color: var(--text);
 padding: 8px 0;
}
.site-nav a[aria-current="page"] { color: var(--copper); }
.nav-toggle {
 display: none;
 border: 1px solid var(--ink);
 color: var(--ink);
 padding: 6px 12px;
 cursor: pointer;
 border-radius: var(--radius);
 transition: background 180ms linear, color 180ms linear, transform 180ms linear;
}
.nav-toggle:hover { background: var(--copper); border-color: var(--copper); color: var(--light); transform: translateY(-1px); }
.nav-toggle:active { transform: translateY(0); }
.crumb-bar { border-top: 1px solid var(--line); }
.crumb-row {
 display: flex;
 align-items: center;
 gap: 18px;
 min-height: 40px;
}
.crumb-back { flex: none; font-family: var(--serif); font-size: 13px; color: var(--muted); }
.crumbs {
 display: flex;
 align-items: center;
 gap: 10px;
 min-width: 0;
 overflow-x: auto;
 white-space: nowrap;
 font-family: var(--serif);
 font-size: 13px;
 color: var(--muted);
 scrollbar-width: none;
}
.crumbs::-webkit-scrollbar { display: none; }
.crumbs [aria-current="page"] { color: var(--ink); }
.hair { width: 16px; height: 1px; background: var(--line); display: inline-block; flex: none; }
.draw {
 background-image: linear-gradient(currentColor, currentColor);
 background-repeat: no-repeat;
 background-position: 0 100%;
 background-size: 0 1px;
 transition: background-size 180ms linear, color 180ms linear;
}
.draw:hover { background-size: 100% 1px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
 outline: 1px solid var(--ink);
 outline-offset: 3px;
}
.sec-title {
 margin: 0;
 font-size: clamp(28px, 3vw, 40px);
 line-height: 1.25;
 color: var(--ink);
 max-width: 16em;
}
.sec-lead { margin: 16px 0 0; max-width: 42em; color: var(--muted); font-size: 16px; line-height: 1.8; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border: 1px solid var(--copper);
 color: var(--copper);
 background: transparent;
 border-radius: var(--radius);
 cursor: pointer;
 transition: background 180ms linear, color 180ms linear, border-color 180ms linear, transform 180ms linear;
}
.btn:hover { background: var(--copper); color: var(--light); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.band { padding: var(--space) 0; }
.band-alt { background: var(--bg-alt); }
.cat-head { padding: 48px 0 12px; }
.cat-title {
 margin: 0;
 font-size: clamp(34px, 4.6vw, 52px);
 line-height: 1.18;
 color: var(--ink);
}
.cat-scope {
 margin: 14px 0 0;
 max-width: 36em;
 color: var(--muted);
 font-size: 16px;
 line-height: 1.8;
}
.entry-list { list-style: none; margin: 8px 0 0; padding: 0; }
.entry {
 display: grid;
 grid-template-columns: 132px minmax(0, 1fr);
 gap: 22px;
 padding: 22px 0;
 border-top: 1px solid var(--line);
}
.entry:last-child { border-bottom: 1px solid var(--line); }
.entry time {
 color: var(--muted);
 font-size: 14px;
 font-variant-numeric: tabular-nums;
 letter-spacing: 0.02em;
}
.entry-title {
 margin: 0;
 font-size: clamp(20px, 2vw, 26px);
 line-height: 1.35;
 font-weight: 700;
}
.entry-title a { color: var(--ink); }
.mark {
 display: inline-block;
 margin-left: 12px;
 color: var(--ink);
 font-family: var(--sans);
 font-size: 13px;
 font-weight: 400;
 letter-spacing: 0.08em;
 border-bottom: 1px solid var(--sprout);
 vertical-align: 4px;
}
.entry p { margin: 8px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.empty-line {
 margin: 0;
 padding: 28px 0;
 border-top: 1px solid var(--line);
 border-bottom: 1px solid var(--line);
 color: var(--text);
}
.empty-line a { color: var(--copper); margin-left: 12px; }
.filter-form { margin-top: 28px; }
.filter-bar {
 display: grid;
 grid-template-columns: 0.8fr 1.4fr 0.9fr auto;
 gap: 14px 16px;
 align-items: end;
 padding: 18px 0 20px;
 border-top: 1px solid var(--ink);
 border-bottom: 1px solid var(--ink);
}
.field { min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.field span { font-family: var(--serif); font-size: 14px; color: var(--ink); letter-spacing: 0.04em; }
.field input, .field select {
 width: 100%;
 min-height: 44px;
 padding: 0 12px;
 background: transparent;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 color: var(--text);
}
.field-error { margin: 12px 0 0; color: var(--clay); font-size: 14px; }
.step-list { list-style: none; margin: 28px 0 0; padding: 0; max-width: 760px; }
.step {
 position: relative;
 display: grid;
 grid-template-columns: 84px minmax(0, 1fr);
 gap: 8px;
 padding: 22px 0 22px 16px;
 border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step-no {
 font-family: var(--serif);
 font-size: 32px;
 line-height: 1;
 color: var(--ink);
 letter-spacing: -0.04em;
}
.step.is-now .step-no { color: var(--copper); }
.step.is-now::before {
 content: "";
 position: absolute;
 left: 0;
 top: 18px;
 bottom: 18px;
 width: 1px;
 background: var(--sprout);
 transform-origin: top;
 animation: sprout-line 700ms linear forwards;
}
.step h3 { margin: 0 0 6px; font-size: 22px; }
.step h3 a { color: var(--ink); }
.step p { margin: 0; color: var(--muted); font-size: 16px; }
@keyframes sprout-line { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.related-list { list-style: none; margin: 28px 0 0; padding: 0; }
.related-list li { border-top: 1px solid var(--line); }
.related-list li:last-child { border-bottom: 1px solid var(--line); }
.related-list a {
 display: flex;
 justify-content: space-between;
 gap: 18px;
 padding: 16px 0;
 font-family: var(--serif);
 font-size: 20px;
 color: var(--ink);
}
.related-list em { font-style: normal; color: var(--muted); font-family: var(--sans); font-size: 13px; letter-spacing: 0.06em; flex: none; }
.rhythm { background: var(--cabin); color: var(--light); }
.rhythm .sec-title { color: var(--light); }
.rhythm .sec-lead { color: var(--soft); }
.metric-row {
 margin-top: 28px;
 display: grid;
 grid-template-columns: 1fr 1fr;
 border-top: 1px solid rgba(217, 211, 199, 0.28);
}
.metric {
 padding: 26px 24px 8px 0;
}
.metric + .metric { padding-left: 24px; border-left: 1px solid rgba(217, 211, 199, 0.25); }
.metric b {
 display: block;
 font-family: var(--serif);
 font-weight: 700;
 font-size: clamp(48px, 6vw, 76px);
 line-height: 0.95;
 letter-spacing: -0.045em;
 color: var(--copper);
}
.metric span { display: block; margin-top: 10px; color: var(--soft); font-size: 15px; }
.faq { margin-top: 24px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
 cursor: pointer;
 list-style: none;
 font-family: var(--serif);
 font-size: 20px;
 line-height: 1.45;
 padding: 18px 36px 18px 0;
 position: relative;
 color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "";
 position: absolute;
 right: 4px;
 top: 50%;
 width: 12px;
 height: 1px;
 background: var(--sprout);
}
.faq-item summary::before {
 content: "";
 position: absolute;
 right: 9px;
 top: calc(50% - 6px);
 width: 1px;
 height: 12px;
 background: var(--sprout);
}
.faq-item[open] summary::before { opacity: 0; }
.faq-item[open] summary { color: var(--copper); }
.faq-item p { margin: 0; padding: 0 0 18px; color: var(--muted); max-width: 40em; }
.more-sec { padding: 28px 0 64px; }
.more-link {
 font-family: var(--serif);
 font-size: 22px;
 color: var(--copper);
}
.site-footer { border-top: 1px solid var(--line); background: var(--bg); }
.foot-grid {
 display: flex;
 justify-content: space-between;
 gap: 32px;
 padding: 36px 0 20px;
}
.foot-brand { margin: 0; font-family: var(--serif); font-size: 24px; color: var(--ink); letter-spacing: -0.04em; }
.foot-brand span { display: inline-block; margin-left: 10px; font-size: 14px; color: var(--muted); letter-spacing: 0.08em; }
.foot-brand span::before { content: ""; display: inline-block; width: 12px; height: 1px; background: var(--sprout); margin-right: 8px; vertical-align: middle; }
.foot-note { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.foot-links { list-style: none; display: flex; gap: 22px; margin: 6px 0 0; padding: 0; }
.foot-links a { font-size: 15px; color: var(--text); }
.copyline {
 border-top: 1px solid var(--line);
 padding: 14px 0 22px;
 color: var(--muted);
 font-size: 13px;
}
@media (max-width: 1200px) {
 .cat-title { font-size: clamp(34px, 4.4vw, 48px); }
}
@media (max-width: 1024px) {
 .filter-bar { grid-template-columns: 1fr 1fr; }
 .filter-bar .btn { min-width: 140px; }
}
@media (max-width: 960px) {
 .metric-row { grid-template-columns: 1fr 1fr; }
 .related-list a { font-size: 18px; }
}
@media (max-width: 768px) {
 .nav-toggle { display: inline-flex; }
 .site-nav {
 display: none;
 position: absolute;
 left: 0;
 right: 0;
 top: 72px;
 background: var(--bg);
 border-bottom: 1px solid var(--line);
 flex-direction: column;
 align-items: flex-start;
 gap: 0;
 padding: 4px 24px 12px;
}
 .site-nav.is-open { display: flex; }
 .site-nav a { width: 100%; padding: 12px 0; border-top: 1px solid var(--line); }
 .crumb-row { gap: 12px; }
 .entry { grid-template-columns: 1fr; gap: 6px; }
 .step { grid-template-columns: 64px 1fr; }
 .foot-grid { flex-direction: column; }
}
@media (max-width: 520px) {
 .container { width: calc(100% - 32px); }
 .logo-main { font-size: 22px; }
 .filter-bar { grid-template-columns: 1fr; }
 .metric-row { grid-template-columns: 1fr; }
 .metric + .metric { padding-left: 0; border-left: 0; border-top: 1px solid rgba(217, 211, 199, 0.25); }
 .related-list a { flex-direction: column; gap: 4px; }
 .band { padding: 48px 0; }
}
@media (max-width: 480px) {
 .cat-head { padding-top: 32px; }
 .foot-links { flex-wrap: wrap; gap: 12px 18px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after {
 animation: none !important;
 transition: none !important;
 }
 .step.is-now::before { transform: none; }
}