/* roulang page: index */
:root {
  --plum: #4A2C3A;
  --copper: #A67C52;
  --madder: #8C3A4A;
  --paper: #F6F1EA;
  --warm: #EFE8E0;
  --card: #FFFCF8;
  --ink: #1F1A17;
  --muted: #5C534C;
  --line: #E4D9CC;
  --radius: 6px;
  --shadow: 0 10px 28px rgba(31, 26, 23, .06);
  --shadow-hover: 0 16px 34px rgba(31, 26, 23, .1);
  --container: 1120px;
  --header-h: 72px;
  --pad: 72px;
  --serif: "Songti SC", "STSong", "Noto Serif SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
}
h1, h2, h3, h4, p, ul, ol, dl, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { max-width: 100%; display: block; }
button, input, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  border-radius: 0;
  padding: 0;
}
button { cursor: pointer; }
a { color: var(--plum); text-decoration: none; }
a:hover { color: var(--madder); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:active { color: var(--plum); }
::selection { background: rgba(140, 58, 74, .16); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(246, 241, 234, .96);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--plum);
  text-decoration: none;
}
.logo:hover { color: var(--plum); text-decoration: none; }
.seal {
  width: 32px;
  height: 32px;
  border: 1px solid var(--copper);
  border-radius: 2px;
  display: grid;
  place-items: center;
  background: var(--card);
}
.logo-text {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  margin-left: auto;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--plum);
  border-radius: var(--radius);
  color: var(--plum);
  background: var(--card);
}
.nav-toggle:hover { border-color: var(--madder); color: var(--madder); }
.nav-toggle:active { transform: translateY(1px); }
.site-nav {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.nav-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex: 1;
}
.nav-text {
  font-size: 15px;
  padding: 6px 2px;
  color: var(--ink);
}
.nav-text[aria-current="page"] {
  color: var(--madder);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1.3;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
a.btn:hover, a.btn:focus { text-decoration: none; }
.btn-solid {
  background: var(--madder);
  color: var(--card);
  border-color: var(--madder);
}
.btn-solid:hover { background: var(--plum); border-color: var(--plum); color: var(--card); }
.btn-solid:active { transform: translateY(1px); }
.btn-line {
  background: transparent;
  color: var(--plum);
  border-color: var(--copper);
  border-radius: 999px;
}
.btn-line:hover { color: var(--madder); border-color: var(--madder); background: rgba(140, 58, 74, .04); }
.btn-line:active { transform: translateY(1px); }
.nav-cta {
  min-height: 48px;
  padding: 12px 22px;
  font-size: 16px;
  border-radius: var(--radius);
  flex: 0 0 auto;
}
.block { padding: var(--pad) 0; border-top: 1px solid var(--line); }
.block.paper { background: var(--paper); }
.block.warm { background: var(--warm); }
.hero {
  padding: 64px 0 72px;
  border-top: 0;
  background:
    radial-gradient(880px 420px at 8% -10%, rgba(166, 124, 82, .18), transparent 62%),
    radial-gradient(640px 360px at 96% 0%, rgba(74, 44, 58, .08), transparent 58%),
    var(--paper);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  gap: 40px;
  align-items: center;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; color: var(--plum); line-height: 1.35; overflow-wrap: break-word; }
h1 { font-size: 40px; }
h2 { font-size: 30px; }
h3 { font-size: 20px; }
.sub {
  margin-top: 14px;
  max-width: 36em;
  color: var(--ink);
}
.lead {
  margin-top: 16px;
  max-width: 38em;
  color: var(--ink);
}
.block-head { margin-bottom: 22px; max-width: 42em; }
.rule {
  display: block;
  width: 36px;
  height: 2px;
  margin-bottom: 10px;
  background: var(--copper);
}
.block-head .lead { margin-top: 12px; margin-bottom: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.hero-actions .btn-solid { min-height: 48px; padding: 12px 22px; font-size: 16px; }
.index-card {
  background-color: var(--card);
  background-image: repeating-linear-gradient(180deg, transparent, transparent 31px, rgba(228, 217, 204, .85) 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 10px;
  position: relative;
}
.index-card::before {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 18px;
  height: 18px;
  border: 1px solid var(--copper);
  border-radius: 2px;
}
.index-kicker {
  font-family: var(--serif);
  color: var(--plum);
  font-size: 18px;
  margin-bottom: 8px;
}
.index-list { display: grid; gap: 0; }
.index-list a {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px 10px;
  padding: 12px 0 13px;
  border-top: 1px solid transparent;
  color: var(--ink);
  text-decoration: none;
}
.index-list li + li a { border-top-color: rgba(228, 217, 204, .9); }
.index-list a:hover { color: var(--madder); }
.index-list em {
  font-style: normal;
  font-family: var(--serif);
  color: var(--copper);
}
.index-list strong { display: block; font-weight: 600; color: var(--plum); font-size: 17px; }
.index-list span { display: block; color: var(--muted); font-size: 14px; line-height: 1.6; }
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.quick {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 148px;
  padding: 18px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.quick:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
  text-decoration: none;
}
.quick small { color: var(--copper); font-size: 13px; }
.quick strong { font-family: var(--serif); font-size: 20px; font-weight: 600; color: var(--plum); }
.quick span { color: var(--muted); font-size: 14px; line-height: 1.7; }
.matrix {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 16px;
  align-items: stretch;
}
.matrix-side { display: grid; gap: 16px; }
.entry-card, .slip, .mag-card, .cover-card, .scene-card, .note-card, .paper-form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.entry-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 22px;
  color: var(--ink);
  text-decoration: none;
  min-height: 210px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.entry-tall { min-height: 100%; justify-content: flex-end; padding: 28px 26px; background:
  linear-gradient(180deg, rgba(74, 44, 58, .05), transparent 42%),
  var(--card);
}
.entry-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
  text-decoration: none;
}
.entry-card p, .slip p { color: var(--muted); font-size: 15px; line-height: 1.75; max-width: 36em; }
.tag, .badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--copper);
  color: var(--plum);
  background: var(--card);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  line-height: 1.5;
}
.entry-card .btn { margin-top: 8px; pointer-events: none; }
.slip {
  padding: 18px 18px 16px;
  background-image: repeating-linear-gradient(180deg, transparent, transparent 27px, rgba(228, 217, 204, .75) 28px);
  border-style: dashed;
  border-color: var(--copper);
}
.slip h3 { margin: 8px 0; }
.slip .btn { margin-top: 8px; }
.rail {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 8px 2px 18px;
  scroll-snap-type: x mandatory;
}
.rail::-webkit-scrollbar { height: 8px; }
.rail::-webkit-scrollbar-thumb { background: var(--copper); border-radius: 999px; }
.mag-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 14px;
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.mag-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
  text-decoration: none;
}
.w-a { width: 300px; }
.w-b { width: 230px; }
.w-c { width: 340px; }
.w-d { width: 210px; }
.w-e { width: 270px; }
.mag-card h3 { margin: 12px 0 6px; font-size: 20px; }
.mag-card p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.swatch {
  height: 92px;
  border-radius: var(--radius);
  border: 1px solid rgba(228, 217, 204, .8);
}
.sw-a { height: 120px; background: linear-gradient(145deg, #6a4454, #4A2C3A 55%, #A67C52); }
.sw-b { height: 78px; background: linear-gradient(160deg, #EFE8E0, #d9c3ae 70%, #4A2C3A); }
.sw-c { height: 108px; background: linear-gradient(135deg, #8C3A4A, #4A2C3A 46%, #F6F1EA); }
.sw-d { height: 72px; background: linear-gradient(180deg, #F6F1EA, #A67C52); }
.sw-e { height: 96px; background: linear-gradient(200deg, #4A2C3A, #8C3A4A 70%, #EFE8E0); }
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.metrics article { padding: 22px 18px; border-right: 1px solid var(--line); }
.metrics article:last-child { border-right: 0; }
.metrics strong {
  display: block;
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 600;
  color: var(--plum);
  line-height: 1.2;
}
.metrics span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
.metric-note { margin-top: 14px; color: var(--muted); font-size: 14px; max-width: 40em; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  position: relative;
  counter-reset: step;
}
.steps::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 6%;
  right: 6%;
  height: 1px;
  background: var(--copper);
}
.steps li {
  position: relative;
  padding-top: 46px;
}
.steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--copper);
  background: var(--card);
  color: var(--plum);
  font-family: var(--serif);
  font-size: 13px;
  display: grid;
  place-items: center;
}
.steps h3 { margin-bottom: 6px; font-size: 18px; }
.steps p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.scene-board {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .82fr) minmax(0, 1.05fr);
  gap: 16px;
}
.scene-card {
  padding: 22px 20px 20px;
  min-height: 220px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.scene-card:hover { transform: translateY(-2px); border-color: var(--madder); box-shadow: var(--shadow-hover); }
.scene-card:nth-child(1) { background: linear-gradient(180deg, rgba(74, 44, 58, .06), var(--card) 48%); }
.scene-card:nth-child(2) { background: var(--card); }
.scene-card:nth-child(3) { background: linear-gradient(200deg, rgba(166, 124, 82, .16), var(--card) 50%); }
.scene-card h3 { margin: 10px 0; }
.scene-card p { color: var(--ink); font-size: 15px; }
.wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 150px;
  gap: 14px;
}
.cover-card {
  position: relative;
  overflow: hidden;
  min-height: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #F6F1EA;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.cover-card:hover { transform: translateY(-2px); border-color: var(--madder); box-shadow: var(--shadow-hover); }
.cover-lg-a { grid-column: span 2; grid-row: span 2; background: linear-gradient(160deg, #5c3948 0%, #4A2C3A 48%, #2c1a22 100%); }
.cover-lg-b { grid-column: span 2; background: linear-gradient(135deg, #8C3A4A, #4A2C3A 62%, #A67C52); }
.cover-sm-a { background: linear-gradient(180deg, #6d5344, #4A2C3A); }
.cover-sm-b { background: linear-gradient(200deg, #A67C52, #4A2C3A); }
.cover-sm-c { background: linear-gradient(145deg, #4A2C3A, #8C3A4A); }
.cover-sm-d { background: linear-gradient(160deg, #3d2a30, #A67C52); }
.cover-card h3 { color: #F6F1EA; font-size: 22px; }
.cover-sm-a h3, .cover-sm-b h3, .cover-sm-c h3, .cover-sm-d h3 { font-size: 18px; }
.cover-card p { color: rgba(246, 241, 234, .88); font-size: 14px; line-height: 1.65; margin-top: 6px; }
.cover-card .tag { background: transparent; color: #F6F1EA; border-color: rgba(246, 241, 234, .55); margin-bottom: 8px; width: fit-content; }
.spec-list { border-top: 1px solid var(--line); }
.spec-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.spec-row dt { font-family: var(--serif); color: var(--plum); font-size: 18px; }
.spec-row dd { margin: 0; color: var(--ink); }
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.news-item time { color: var(--copper); font-size: 14px; font-variant-numeric: tabular-nums; }
.news-item a { font-family: var(--serif); font-size: 18px; }
.more-row { display: flex; justify-content: flex-start; margin-top: 18px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; }
.badge { padding: 7px 14px; font-size: 14px; background: var(--card); transition: border-color .18s ease, color .18s ease; }
.badge:hover { border-color: var(--madder); color: var(--madder); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--plum);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; color: var(--copper); font-size: 20px; flex: 0 0 auto; }
.faq details[open] summary { color: var(--madder); }
.faq details[open] summary::after { content: "－"; }
.faq details p { padding: 0 0 16px; max-width: 40em; color: var(--ink); }
.assure-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.assure-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.assure-list svg { flex: 0 0 auto; }
.assure-list strong { display: block; font-family: var(--serif); color: var(--plum); font-size: 18px; font-weight: 600; }
.assure-list span { display: block; color: var(--muted); font-size: 14px; line-height: 1.6; }
.note-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.note-card { padding: 22px; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.note-card:hover { transform: translateY(-2px); border-color: var(--madder); box-shadow: var(--shadow-hover); }
.note-card h3 { margin-bottom: 8px; }
.note-card p { color: var(--ink); }
.sign { margin-top: 14px; color: var(--copper); font-size: 14px; }
.close-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: start;
}
.paper-form { padding: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field span { font-size: 14px; color: var(--muted); }
input, textarea {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  line-height: 1.6;
}
textarea { min-height: 96px; resize: vertical; }
input:hover, textarea:hover { border-color: var(--copper); }
input:focus-visible, textarea:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; border-color: var(--copper); }
.form-note {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--warm);
  border-radius: var(--radius);
  color: var(--plum);
  font-size: 14px;
}
.site-footer {
  background: var(--warm);
  border-top: 1px solid var(--line);
  padding: 42px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .9fr) minmax(0, .8fr);
  gap: 28px;
}
.foot-name { font-family: var(--serif); font-size: 22px; color: var(--plum); font-weight: 600; }
.foot-line { margin-top: 8px; color: var(--ink); max-width: 22em; }
.foot-label { font-family: var(--serif); color: var(--plum); margin-bottom: 8px; font-size: 18px; }
.foot-links { display: grid; gap: 2px; }
.foot-links a { width: fit-content; padding: 3px 0; }
.copy { margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
@media (max-width: 1200px) {
  .container { width: min(var(--container), calc(100% - 36px)); }
  .hero-grid { gap: 28px; }
}
@media (max-width: 992px) {
  .nav-center { gap: 8px; }
  .btn-line { padding: 5px 10px; }
  .nav-cta { padding: 10px 14px; min-height: 44px; }
  .logo-text { font-size: 18px; }
  .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scene-board { grid-template-columns: 1fr; }
  .wall { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 170px; }
  .cover-lg-a, .cover-lg-b { grid-column: span 2; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metrics article:nth-child(2) { border-right: 0; }
  .metrics article:nth-child(1), .metrics article:nth-child(2) { border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 22px; }
  .steps::before { display: none; }
}
@media (max-width: 768px) {
  :root { --pad: 40px; }
  body { font-size: 16px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  h3 { font-size: 18px; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    min-height: 320px;
    padding: 16px 20px 18px;
    background: rgba(246, 241, 234, .98);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    z-index: 50;
  }
  .site-nav.is-open { display: flex; }
  .nav-center { flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 10px; }
  .nav-text { padding: 8px 2px; }
  .btn-line, .nav-cta { width: 100%; }
  .nav-cta { margin-top: auto; }
  .hero { padding: 36px 0 40px; }
  .hero-grid, .matrix, .note-grid, .close-grid, .footer-grid, .assure-list { grid-template-columns: 1fr; }
  .entry-tall { min-height: 240px; }
  .spec-row, .news-item { grid-template-columns: 1fr; gap: 4px; }
  .news-item .tag { width: fit-content; }
}
@media (max-width: 480px) {
  .container { width: calc(100% - 28px); }
  .logo-text { font-size: 16px; }
  .metrics { grid-template-columns: 1fr; }
  .metrics article { border-right: 0; border-bottom: 1px solid var(--line); }
  .metrics article:last-child { border-bottom: 0; }
  .steps { grid-template-columns: 1fr; }
  .wall { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .cover-lg-a, .cover-lg-b, .cover-card { grid-column: auto; grid-row: auto; min-height: 180px; }
  .hero-actions .btn { width: 100%; }
  .w-a, .w-b, .w-c, .w-d, .w-e { width: 78vw; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category2 */
:root {
  --plum: #4A2C3A;
  --copper: #A67C52;
  --madder: #8C3A4A;
  --paper: #F6F1EA;
  --warm: #EFE8E0;
  --card: #FFFCF8;
  --ink: #1F1A17;
  --muted: #5C534C;
  --line: #E4D9CC;
  --radius: 6px;
  --shadow: 0 10px 28px rgba(31, 26, 23, .06);
  --shadow-hover: 0 16px 34px rgba(31, 26, 23, .1);
  --container: 1120px;
  --header-h: 72px;
  --pad: 72px;
  --serif: "Songti SC", "STSong", "Noto Serif SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
}
img, svg { max-width: 100%; display: block; }
button, input, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  border-radius: 0;
  padding: 0;
}
button { cursor: pointer; }
a { color: var(--plum); text-decoration: none; }
a:hover { color: var(--madder); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:active { color: var(--plum); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--plum);
  letter-spacing: 0;
}
h1 { font-size: 40px; line-height: 1.28; margin: 0; }
h2 { font-size: 30px; line-height: 1.35; margin: 0 0 16px; }
h3 { font-size: 20px; line-height: 1.45; margin: 0; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(246, 241, 234, .96);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--plum);
  text-decoration: none;
}
.logo:hover { color: var(--plum); text-decoration: none; }
.seal { display: inline-flex; flex: 0 0 auto; }
.logo-text {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  margin-left: auto;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--plum);
  border-radius: var(--radius);
  color: var(--plum);
  background: var(--card);
}
.nav-toggle:hover { border-color: var(--madder); color: var(--madder); }
.nav-toggle:active { transform: translateY(1px); }
.site-nav {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.nav-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex: 1;
}
.nav-text {
  font-size: 15px;
  padding: 6px 2px;
  color: var(--ink);
}
.nav-text[aria-current="page"] {
  color: var(--madder);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1.3;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
a.btn:hover, a.btn:focus { text-decoration: none; }
.btn-solid {
  background: var(--madder);
  color: var(--card);
  border-color: var(--madder);
}
.btn-solid:hover { background: var(--plum); border-color: var(--plum); color: var(--card); }
.btn-solid:active { transform: translateY(1px); }
.btn-line {
  background: transparent;
  color: var(--plum);
  border-color: var(--copper);
  border-radius: 999px;
}
.btn-line:hover { color: var(--madder); border-color: var(--madder); background: rgba(140, 58, 74, .04); }
.btn-line:active { transform: translateY(1px); }
.btn-line[aria-current="page"] {
  background: var(--plum);
  color: var(--card);
  border-color: var(--plum);
}
.btn-line[aria-current="page"]:hover {
  background: var(--madder);
  border-color: var(--madder);
  color: var(--card);
}
.nav-cta {
  min-height: 48px;
  padding: 12px 22px;
  font-size: 16px;
  border-radius: var(--radius);
  flex: 0 0 auto;
}
.section { padding: var(--pad) 0; }
.section.paper { background: var(--paper); }
.section.warm { background: var(--warm); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kicker {
  margin: 0 0 8px;
  color: var(--copper);
  font-size: 14px;
  letter-spacing: 0;
}
.lead { margin: 0; max-width: 38em; color: var(--ink); }
.page-band {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 28px 0 26px;
}
.band-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.band-copy {
  border-left: 3px solid var(--plum);
  padding-left: 16px;
  min-width: 0;
}
.band-copy .lead { margin-top: 8px; color: var(--muted); font-size: 16px; }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  border: 1px solid var(--copper);
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--card);
  color: var(--plum);
  font-size: 14px;
  box-shadow: var(--shadow);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--madder);
}
.tag, .badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--copper);
  color: var(--plum);
  background: var(--card);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  line-height: 1.5;
}
.axis { position: relative; display: grid; gap: 18px; }
.axis::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--copper);
  transform: translateX(-50%);
}
.axis-item { width: calc(50% - 28px); position: relative; }
.axis-item:nth-child(even) { margin-left: auto; }
.axis-item::after {
  content: "";
  position: absolute;
  top: 22px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--plum);
  background: var(--paper);
  border-radius: 50%;
}
.axis-item:nth-child(odd)::after { right: -34px; }
.axis-item:nth-child(even)::after { left: -34px; }
.node-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px 18px;
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.node-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
  text-decoration: none;
}
.node-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.node-card time { color: var(--muted); font-size: 14px; }
.node-card h3 { margin-bottom: 6px; }
.node-card p { color: var(--muted); font-size: 15px; line-height: 1.75; }
.vsteps { display: grid; gap: 0; max-width: 760px; border-left: 1px solid var(--copper); margin-left: 18px; }
.vstep {
  position: relative;
  padding: 0 0 26px 28px;
}
.vstep:last-child { padding-bottom: 0; }
.vnum {
  position: absolute;
  left: -18px;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--plum);
  background: var(--card);
  color: var(--plum);
  font-family: var(--serif);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.vstep h3 { margin-bottom: 6px; }
.vstep p { color: var(--muted); max-width: 38em; }
.excerpt-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 18px;
  align-items: stretch;
}
.excerpt-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.paper-swatch {
  height: 92px;
  background:
    radial-gradient(120px 60px at 18% 40%, rgba(140, 58, 74, .18), transparent 70%),
    repeating-linear-gradient(180deg, transparent, transparent 15px, rgba(228, 217, 204, .9) 16px),
    linear-gradient(135deg, #F8F3EC, #EFE4D8);
  border-bottom: 1px solid var(--line);
}
.excerpt-card:nth-child(2) .paper-swatch {
  background:
    radial-gradient(140px 70px at 80% 20%, rgba(166, 124, 82, .28), transparent 68%),
    repeating-linear-gradient(90deg, transparent, transparent 22px, rgba(228, 217, 204, .75) 23px),
    linear-gradient(160deg, #FFFCF8, #E7D9CC);
}
.excerpt-body { padding: 18px 20px 22px; }
.excerpt-body p {
  line-height: 1.9;
  max-width: 38em;
  margin-bottom: 1.15em;
}
.excerpt-body .tag { margin-bottom: 10px; }
.faq-list { display: grid; gap: 12px; max-width: 820px; }
.faq-list details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 18px;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--plum);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--copper);
  border-bottom: 1.5px solid var(--copper);
  transform: rotate(45deg);
  flex: 0 0 auto;
  margin-top: -4px;
}
.faq-list details[open] summary {
  border-bottom: 1px solid var(--line);
}
.faq-list details[open] summary::after { transform: rotate(225deg); margin-top: 4px; }
.faq-list details:hover { border-color: var(--madder); }
.answer { padding: 14px 18px 18px; color: var(--ink); line-height: 1.85; }
.spec-board {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 6px 22px 8px;
}
.spec-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 12px 24px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.spec-row:first-child { border-top: 0; }
.spec-row dt {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--plum);
  font-family: var(--serif);
  font-size: 18px;
  margin: 0;
}
.spec-row dd { margin: 0; color: var(--ink); }
.ico {
  width: 28px;
  height: 28px;
  border: 1px solid var(--copper);
  border-radius: 50%;
  position: relative;
  flex: 0 0 auto;
}
.ico::before, .ico::after {
  content: "";
  position: absolute;
  background: var(--plum);
}
.ico-order::before { width: 12px; height: 1.5px; left: 7px; top: 9px; box-shadow: 0 4px 0 var(--plum), 0 8px 0 var(--plum); }
.ico-mark::before { width: 10px; height: 10px; border: 1.5px solid var(--plum); background: transparent; left: 8px; top: 8px; border-radius: 2px; }
.ico-back::before { width: 10px; height: 1.5px; left: 8px; top: 13px; }
.ico-back::after { width: 5px; height: 5px; border-left: 1.5px solid var(--plum); border-bottom: 1.5px solid var(--plum); background: transparent; left: 8px; top: 11px; transform: rotate(45deg); }
.ico-fresh::before { width: 1.5px; height: 12px; left: 13px; top: 7px; }
.ico-fresh::after { width: 6px; height: 6px; border-right: 1.5px solid var(--plum); border-top: 1.5px solid var(--plum); background: transparent; left: 10px; top: 8px; transform: rotate(45deg); }
.related-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.mini-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-height: 168px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.mini-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
  text-decoration: none;
}
.mini-card strong {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--plum);
}
.mini-card span { color: var(--muted); font-size: 14px; line-height: 1.7; }
.close-wrap { background: var(--warm); }
.close-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 8px 0;
}
.close-bar h2 { margin: 0 0 8px; }
.close-bar p { color: var(--muted); max-width: 36em; }
.close-actions { display: flex; flex-wrap: wrap; gap: 12px; flex: 0 0 auto; }
.close-actions .btn-solid { min-height: 48px; padding: 12px 22px; font-size: 16px; }
.site-footer {
  background: #EFE8E0;
  border-top: 1px solid var(--line);
  padding: 36px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr .8fr;
  gap: 28px;
}
.foot-name {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--plum);
  margin: 0 0 8px;
}
.foot-line { color: var(--muted); margin: 0; font-size: 14px; }
.foot-label { margin: 0 0 8px; color: var(--plum); font-size: 14px; }
.foot-links { display: grid; gap: 6px; }
.foot-links a { font-size: 14px; }
.copy {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
@media (max-width: 1200px) {
  .excerpt-grid { gap: 14px; }
}
@media (max-width: 992px) {
  .axis::before { left: 12px; transform: none; }
  .axis-item, .axis-item:nth-child(even) { width: auto; margin-left: 0; }
  .axis-item { padding-left: 32px; }
  .axis-item::after, .axis-item:nth-child(odd)::after, .axis-item:nth-child(even)::after {
    left: 6px;
    right: auto;
  }
  .related-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .excerpt-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --pad: 40px; }
  body { font-size: 16px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  h3 { font-size: 18px; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    background: rgba(246, 241, 234, .98);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 16px;
    box-shadow: var(--shadow);
    gap: 12px;
  }
  .site-nav.is-open { display: flex; }
  .nav-center {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .nav-text { padding: 8px 2px; }
  .btn-line { width: 100%; min-height: 42px; }
  .nav-cta { width: 100%; }
  .band-row { flex-direction: column; align-items: flex-start; }
  .spec-row { grid-template-columns: 1fr; gap: 8px; }
  .close-bar { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 480px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .logo-text { font-size: 16px; }
  .related-row { grid-template-columns: 1fr; }
  .close-actions, .close-actions .btn { width: 100%; }
  .node-meta { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --plum: #4A2C3A;
  --copper: #A67C52;
  --madder: #8C3A4A;
  --paper: #F6F1EA;
  --warm: #EFE8E0;
  --card: #FFFCF8;
  --ink: #1F1A17;
  --muted: #5C534C;
  --line: #E4D9CC;
  --radius: 6px;
  --shadow: 0 10px 28px rgba(31, 26, 23, .06);
  --shadow-hover: 0 16px 34px rgba(31, 26, 23, .1);
  --container: 1120px;
  --header-h: 72px;
  --pad: 72px;
  --serif: "Songti SC", "STSong", "Noto Serif SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
}
img, svg { max-width: 100%; display: block; }
button, input, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  border-radius: 0;
  padding: 0;
}
button { cursor: pointer; }
a { color: var(--plum); text-decoration: none; }
a:hover { color: var(--madder); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:active { color: var(--plum); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}
p { margin: 0 0 1.05em; }
h1, h2, h3 { line-height: 1.35; font-weight: 600; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(246, 241, 234, .96);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--plum);
  text-decoration: none;
}
.logo:hover { color: var(--plum); text-decoration: none; }
.seal { display: inline-flex; flex: 0 0 auto; }
.logo-text {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  margin-left: auto;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--plum);
  border-radius: var(--radius);
  color: var(--plum);
  background: var(--card);
}
.nav-toggle:hover { border-color: var(--madder); color: var(--madder); }
.nav-toggle:active { transform: translateY(1px); }
.site-nav {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.nav-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex: 1;
}
.nav-text {
  font-size: 15px;
  padding: 6px 2px;
  color: var(--ink);
}
.nav-text[aria-current="page"] {
  color: var(--madder);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1.3;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
a.btn:hover, a.btn:focus, button.btn:hover { text-decoration: none; }
.btn-solid {
  background: var(--madder);
  color: var(--card);
  border-color: var(--madder);
}
.btn-solid:hover { background: var(--plum); border-color: var(--plum); color: var(--card); }
.btn-solid:active { transform: translateY(1px); }
.btn-line {
  background: transparent;
  color: var(--plum);
  border-color: var(--copper);
  border-radius: 999px;
}
.btn-line:hover { color: var(--madder); border-color: var(--madder); background: rgba(140, 58, 74, .04); }
.btn-line:active { transform: translateY(1px); }
.btn-line[aria-current="page"] {
  background: var(--plum);
  color: var(--card);
  border-color: var(--plum);
}
.btn-line[aria-current="page"]:hover {
  background: var(--madder);
  border-color: var(--madder);
  color: var(--card);
}
.nav-cta {
  min-height: 48px;
  padding: 12px 22px;
  font-size: 16px;
  border-radius: var(--radius);
  flex: 0 0 auto;
}
.tag, .badge, .chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--copper);
  color: var(--plum);
  background: var(--card);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  line-height: 1.5;
}
.cat-head {
  background: var(--warm);
  border-bottom: 1px solid var(--line);
  padding: 26px 0 24px;
}
.page-kicker { margin: 0 0 8px; }
.page-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 600;
  color: var(--plum);
}
.lead {
  margin: 12px 0 0;
  max-width: 38em;
  color: var(--ink);
}
.filter-band {
  background: var(--paper);
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.filter-row {
  display: flex;
  align-items: center;
  gap: 12px 14px;
  flex-wrap: wrap;
}
.filter-label {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.chip {
  min-height: 32px;
  padding: 4px 14px;
}
.chip.is-on {
  background: var(--plum);
  border-color: var(--plum);
  color: var(--card);
}
.band { padding: var(--pad) 0; }
.band-paper { background: var(--paper); }
.band-warm { background: var(--warm); }
.block-title {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 30px;
  color: var(--plum);
}
.block-note {
  margin: -6px 0 18px;
  color: var(--muted);
  font-size: 15px;
  max-width: 38em;
}
.cover-wide {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.cover-wide:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
}
.cover-art {
  min-height: 248px;
  background:
    radial-gradient(140px 90px at 28% 26%, rgba(166, 124, 82, .45), transparent 72%),
    repeating-linear-gradient(135deg, rgba(74, 44, 58, .12) 0 1px, transparent 1px 9px),
    linear-gradient(165deg, #F7EFE6 0%, #E7D5C6 46%, #4A2C3A 46.3%, #3C2430 100%);
}
.cover-body { padding: 26px 28px 22px; }
.cover-body h3, .bar-card h3, .guide-block h3, .compare-card h3, .rhythm-item h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--plum);
}
.cover-body p:last-child, .bar-copy p:last-child { margin-bottom: 0; }
.meta {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.bar-list { display: grid; gap: 12px; margin-top: 14px; }
.bar-card {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.bar-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
}
.bar-art {
  height: 72px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(74, 44, 58, .14) 0 1px, transparent 1px 7px),
    linear-gradient(180deg, #F8F1E8, #E8D5C6);
}
.bar-art.alt {
  background:
    radial-gradient(40px 28px at 30% 40%, rgba(140, 58, 74, .28), transparent 70%),
    linear-gradient(145deg, #F3E7DC, #C9A88A);
}
.bar-copy h3 { margin: 0 0 4px; }
.bar-copy p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }
.more-row { margin: 18px 0 8px; }
.more-label {
  margin: 28px 0 12px;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--plum);
}
.prose { max-width: 38em; }
.guide-block {
  padding: 6px 0 20px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.guide-block:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.guide-no {
  margin: 0;
  font-family: var(--serif);
  font-size: 14px;
  color: var(--copper);
}
.text-link { font-size: 15px; }
.compare-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
}
.compare-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 16px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.compare-card:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
}
.compare-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.compare-card li {
  position: relative;
  padding: 8px 0 8px 16px;
  border-top: 1px solid var(--line);
  color: var(--ink);
}
.compare-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 7px;
  height: 1px;
  background: var(--copper);
}
.rhythm {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--copper);
}
.rhythm-item {
  position: relative;
  padding: 0 0 26px 22px;
}
.rhythm-item:last-child { padding-bottom: 0; }
.rhythm-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 10px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--copper);
  background: var(--card);
}
.rhythm-item p { margin: 0; max-width: 38em; color: var(--ink); }
.excerpt-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.excerpt-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, color .18s ease;
}
.excerpt-list a:hover {
  transform: translateY(-2px);
  border-color: var(--madder);
  box-shadow: var(--shadow-hover);
  color: var(--madder);
  text-decoration: none;
}
.excerpt-list a:active { transform: translateY(1px); }
.excerpt-list strong { font-weight: 600; font-family: var(--serif); font-size: 18px; }
.excerpt-side { flex: 0 0 auto; color: var(--copper); font-size: 14px; }
.close-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.close-bar h2 { margin: 0 0 6px; }
.close-bar p { margin: 0; color: var(--muted); }
.close-bar .btn-solid { min-height: 48px; padding: 12px 22px; font-size: 16px; }
.site-footer {
  background: #EFE8E0;
  border-top: 1px solid var(--line);
  padding: 48px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .9fr .8fr;
  gap: 28px;
}
.foot-name {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--plum);
}
.foot-line { margin: 0; color: var(--muted); font-size: 14px; max-width: 16em; }
.foot-label { margin: 0 0 10px; color: var(--plum); font-size: 14px; }
.foot-links { display: grid; gap: 6px; }
.foot-links a { color: var(--ink); }
.foot-links a:hover { color: var(--madder); }
.copy {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
@media (max-width: 1200px) {
  .nav-center { gap: 10px; }
  .logo-text { font-size: 18px; }
}
@media (max-width: 992px) {
  .cover-wide { grid-template-columns: 1fr; }
  .cover-art { min-height: 168px; }
  .compare-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  :root { --pad: 40px; }
  body { font-size: 16px; }
  .page-title { font-size: 30px; }
  .block-title { font-size: 24px; }
  .cover-body h3, .bar-card h3, .guide-block h3, .compare-card h3, .rhythm-item h3, .excerpt-list strong { font-size: 18px; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 14px 16px 16px;
    background: rgba(246, 241, 234, .98);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .nav-center {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .nav-text { padding: 8px 2px; }
  .btn-line { justify-content: center; min-height: 40px; }
  .nav-cta { width: 100%; }
  .bar-card { grid-template-columns: 72px minmax(0, 1fr); }
  .bar-card .tag { grid-column: 1 / -1; justify-self: start; }
  .compare-grid { grid-template-columns: 1fr; }
  .close-bar { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .logo-text { font-size: 16px; }
  .cover-body { padding: 18px 16px 16px; }
  .close-bar, .compare-card { padding: 18px 16px; }
  .excerpt-list a { align-items: flex-start; flex-direction: column; gap: 4px; }
}