/* roulang page: index */
:root {
  --plum: #4A2340;
  --persimmon: #D4654A;
  --persimmon-deep: #B85038;
  --paper: #F4EFE6;
  --tint: #F3E6EC;
  --ink: #241C22;
  --muted: #5E5158;
  --note: #7D6AA8;
  --olive: #3E4A38;
  --olive-soft: #E4EBDD;
  --line: rgba(36, 28, 34, 0.16);
  --shadow: 0 10px 28px rgba(36, 28, 34, 0.08);
  --radius: 12px;
  --serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", sans-serif;
  --container: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color-scheme: light;
}
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  font-family: var(--serif);
  color: var(--plum);
  font-weight: 600;
  line-height: 1.3;
  overflow-wrap: break-word;
}
h1 { font-size: 40px; margin-bottom: 12px; }
h2 { font-size: 28px; margin-bottom: 12px; }
h3 { font-size: 20px; margin-bottom: 8px; }
p { margin-bottom: 12px; }
a { color: var(--plum); }
ul, ol { margin: 0; padding: 0; }
::selection { background: rgba(212, 101, 74, 0.28); color: var(--ink); }
:focus-visible { outline: 2px solid var(--olive); outline-offset: 3px; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.nav-shell { position: relative; min-height: 74px; }
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: 0;
  top: 18px;
  z-index: 3;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--plum);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.nav-toggle:hover { background: #fff; transform: translateY(-1px); }
.nav-toggle:active { transform: none; }
.brand {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: var(--paper);
  color: var(--plum);
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--plum);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 12px;
  color: var(--persimmon);
}
.brand-text { font-family: var(--serif); font-size: 22px; line-height: 1.2; }
.primary-nav { display: none; }
.primary-nav.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 8px 16px 16px;
  max-height: calc(100vh - 74px);
  overflow: auto;
}
.nav-left, .nav-right { display: flex; flex-direction: column; }
.primary-nav a {
  color: var(--plum);
  text-decoration: none;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(rgba(212, 101, 74, 0.5), rgba(212, 101, 74, 0.5));
  background-repeat: no-repeat;
  background-size: 0 0.32em;
  background-position: 0 86%;
  transition: background-size 0.18s ease;
}
.primary-nav a:hover,
.primary-nav a.is-current { background-size: 100% 0.32em; }
.block { padding: 72px 0; }
.block-paper { background: var(--paper); }
.block-tint { background: var(--tint); }
.kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--note);
  background: rgba(255, 255, 255, 0.45);
  font-size: 13px;
}
.subhead { font-family: var(--serif); font-size: 18px; color: var(--plum); margin-bottom: 12px; }
.lead, .intro { max-width: 760px; margin-bottom: 18px; }
.muted { color: var(--muted); }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--persimmon);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: var(--persimmon-deep); transform: translateY(-1px); }
.btn:active { transform: none; }
.btn-ghost { background: transparent; color: var(--plum); }
.btn-ghost:hover { background: rgba(212, 101, 74, 0.14); }
.metric-board {
  display: grid;
  grid-template-columns: 1.5fr 0.72fr;
  gap: 16px;
}
.metric-side { display: grid; gap: 16px; align-content: start; }
.metric {
  background: #fffefb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 16px 14px;
}
.metric-label { margin: 0 0 4px; color: var(--muted); font-size: 14px; }
.metric-value { font-family: var(--serif); font-size: 34px; line-height: 1.15; color: var(--plum); margin: 0 0 8px; }
.metric-note { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.bar { height: 8px; background: rgba(74, 35, 64, 0.12); border-radius: 999px; overflow: hidden; }
.metric-side.wide .bar { height: 16px; }
.bar span { display: block; height: 100%; background: var(--persimmon); border-radius: inherit; }
.matrix { display: grid; grid-template-columns: 1.7fr 0.86fr; gap: 16px; }
.matrix-stack { display: grid; gap: 16px; }
.card, .device-card, .guar-item, .collect-card, .search-form {
  background: #fffefb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 20px; transition: transform 0.18s ease, box-shadow 0.18s ease; }
.card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(36, 28, 34, 0.1); }
.card-index { margin: 0 0 6px; color: var(--persimmon); font-family: var(--serif); }
.inner-note { margin-top: 16px; padding-top: 14px; border-top: 1px dashed rgba(36, 28, 34, 0.22); }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fffefb;
  color: var(--plum);
}
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compare-card { border-radius: var(--radius); border: 1px solid var(--line); padding: 22px; box-shadow: var(--shadow); }
.compare-card.is-hd { background: var(--plum); color: #F4EFE6; }
.compare-card.is-hd h3 { color: #F4EFE6; }
.compare-card.is-plain { background: #fffefb; }
.compare-list { list-style: none; display: grid; gap: 10px; }
.compare-list li { position: relative; padding-left: 16px; }
.compare-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--persimmon);
  position: absolute;
  left: 0;
  top: 0.72em;
}
.compare-card.is-hd .compare-list li::before { background: #F4EFE6; }
.note-layout { display: grid; grid-template-columns: 1.65fr 0.72fr; gap: 16px; align-items: start; }
.note-side { border-left: 3px solid var(--note); padding: 4px 4px 4px 14px; }
.note-side h3 { color: var(--note); }
.cover-frame { margin: 0 0 14px; }
.cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--plum);
}
.cover-frame figcaption { margin-top: 8px; color: var(--muted); font-size: 14px; }
.note-index { display: grid; gap: 12px; margin-top: 16px; }
.note-mini {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 254, 251, 0.72);
}
.timeline { list-style: none; margin-left: 8px; border-left: 1px solid var(--line); }
.time-item { position: relative; padding: 0 0 22px 22px; }
.time-item::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--persimmon);
  position: absolute;
  left: -6px;
  top: 8px;
  box-shadow: 0 0 0 4px var(--tint);
}
.time-date { margin: 0; color: var(--note); font-family: var(--serif); }
.news-list { list-style: none; border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 92px 84px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.news-date, .news-chap { margin: 0; color: var(--note); }
.news-item h3 { margin: 0 0 4px; font-size: 18px; }
.news-item p { margin: 0; }
.news-item a, .toc a, .text-link {
  color: var(--plum);
  text-decoration: none;
  background-image: linear-gradient(rgba(212, 101, 74, 0.48), rgba(212, 101, 74, 0.48));
  background-repeat: no-repeat;
  background-size: 0 0.36em;
  background-position: 0 92%;
  transition: background-size 0.18s ease;
}
.news-item a:hover, .toc a:hover, .text-link:hover,
.collect-card:hover .text-link { background-size: 100% 0.36em; }
.more-wrap { margin: 16px 0 0; }
.toc { list-style: none; }
.toc li {
  display: grid;
  grid-template-columns: 64px 180px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.toc li:nth-child(2) { margin-left: 16px; }
.toc li:nth-child(3) { margin-left: 32px; }
.toc li:nth-child(4) { margin-left: 48px; }
.toc-no { font-family: var(--serif); color: var(--persimmon); }
.toc em { font-style: normal; color: var(--muted); }
.guarantee { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.guar-item { display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 16px; }
.icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(74, 35, 64, 0.08);
  color: var(--plum);
}
.icon svg { width: 22px; height: 22px; fill: currentColor; }
.qa-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.qa-no { font-family: var(--serif); font-size: 24px; color: var(--persimmon); }
.qa-item h3 { margin-bottom: 4px; }
.qa-item p { margin: 0; }
.device-grid, .collect-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.device-card { padding: 18px; border-top: 4px solid var(--plum); }
.device-card:nth-child(2) { border-top-color: var(--persimmon); }
.device-card:nth-child(3) { border-top-color: var(--note); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fffefb; }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--plum);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "＋"; color: var(--persimmon); font-family: var(--sans); }
.faq-item[open] summary::after { content: "－"; }
.faq-item p { padding: 0 18px 16px; margin: 0; }
.collect-card {
  display: block;
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.collect-card img { border: 0; border-radius: 0; aspect-ratio: 16 / 9; }
.collect-body { padding: 14px 14px 16px; }
.collect-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(36, 28, 34, 0.1); }
.form-layout { display: grid; grid-template-columns: 0.86fr 1.14fr; gap: 28px; align-items: start; }
.search-form { padding: 20px; display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field span { font-weight: 600; color: var(--plum); }
input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 12px 14px;
  font-size: 16px;
  line-height: 1.5;
}
textarea { min-height: 120px; resize: vertical; }
.form-note {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--olive);
  background: var(--olive-soft);
  color: var(--olive);
}
.site-footer { background: var(--plum); color: #F4EFE6; padding: 36px 0; }
.footer-brand { font-family: var(--serif); font-size: 24px; margin: 0 0 8px; }
.site-footer p { margin: 0 0 8px; }
.site-footer a { color: #F4EFE6; }
.copy { color: rgba(244, 239, 230, 0.82); }
@media (min-width: 1025px) {
  .nav-toggle { display: none; }
  .nav-shell { display: flex; align-items: center; }
  .brand { top: 50%; transform: translate(-50%, -50%); }
  .primary-nav, .primary-nav.is-open {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: static;
    width: 100%;
    max-height: none;
    overflow: visible;
    padding: 0;
    border: 0;
    box-shadow: none;
    background: transparent;
  }
  .nav-left, .nav-right { flex-direction: row; align-items: center; gap: 18px; }
  .nav-left { justify-content: flex-start; padding-right: 132px; }
  .nav-right { justify-content: flex-end; padding-left: 132px; }
  .primary-nav a { border: 0; padding: 6px 0; }
}
@media (max-width: 1024px) {
  .collect-grid { grid-template-columns: 1fr 1fr; }
  .toc li { grid-template-columns: 52px 1fr; }
  .toc em { grid-column: 2; }
}
@media (max-width: 768px) {
  h1 { font-size: 30px; }
  h2 { font-size: 22px; }
  .block { padding: 40px 0; }
  .metric-board, .matrix, .compare, .note-layout, .guarantee, .device-grid, .form-layout, .news-item { grid-template-columns: 1fr; }
  .brand-text { font-size: 18px; }
}
@media (max-width: 520px) {
  .container { width: min(var(--container), calc(100% - 24px)); }
  .action-row { flex-direction: column; align-items: stretch; }
  .collect-grid { grid-template-columns: 1fr; }
  .toc li, .toc li:nth-child(n) { margin-left: 0; }
  .faq-item summary { font-size: 16px; }
}
@media (max-width: 480px) {
  .brand-text { font-size: 16px; }
  .metric-value { font-size: 28px; }
  .nav-toggle { top: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
 --plum: #4A2340;
 --persimmon: #D4654A;
 --persimmon-deep: #B85038;
 --paper: #F4EFE6;
 --tint: #F3E6EC;
 --ink: #241C22;
 --muted: #5E5158;
 --note: #7D6AA8;
 --olive: #3E4A38;
 --olive-soft: #E4EBDD;
 --line: rgba(36, 28, 34, 0.16);
 --shadow: 0 10px 28px rgba(36, 28, 34, 0.08);
 --radius: 12px;
 --serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
 --sans: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", sans-serif;
 --container: 1120px;
}
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 color: var(--ink);
 background: var(--paper);
 font-family: var(--sans);
 font-size: 16px;
 line-height: 1.75;
 color-scheme: light;
}
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--plum); text-decoration-thickness: 1px; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.35; }
h1 { font-size: 40px; margin: 0 0 12px; }
h2 { font-size: 28px; margin: 0 0 18px; }
h3 { font-size: 20px; margin: 0 0 8px; }
p { margin: 0 0 12px; }
ul { margin: 0; padding: 0; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 30;
 background: rgba(244, 239, 230, 0.96);
 border-bottom: 1px solid var(--line);
}
.nav-shell { position: relative; min-height: 74px; }
.nav-toggle {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 position: absolute;
 left: 0;
 top: 18px;
 z-index: 3;
 border: 1px solid var(--line);
 background: var(--paper);
 color: var(--plum);
 border-radius: 999px;
 padding: 8px 14px;
 cursor: pointer;
 transition: background 0.15s ease, transform 0.15s ease;
}
.nav-toggle:hover { background: #fff; transform: translateY(-1px); }
.nav-toggle:active { transform: none; }
.brand {
 position: absolute;
 left: 50%;
 top: 16px;
 transform: translateX(-50%);
 z-index: 2;
 display: inline-flex;
 align-items: center;
 gap: 8px;
 padding: 4px 10px;
 background: var(--paper);
 color: var(--plum);
 text-decoration: none;
 white-space: nowrap;
}
.brand-mark {
 width: 28px;
 height: 28px;
 border-radius: 50%;
 border: 1px solid var(--plum);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-family: var(--serif);
 font-size: 12px;
 color: var(--persimmon);
 flex: 0 0 auto;
}
.brand-text { font-family: var(--serif); font-size: 22px; line-height: 1.2; }
.primary-nav { display: none; }
.primary-nav.is-open {
 display: flex;
 flex-direction: column;
 position: absolute;
 left: 0;
 right: 0;
 top: 100%;
 z-index: 40;
 background: var(--paper);
 border-bottom: 1px solid var(--line);
 box-shadow: var(--shadow);
 padding: 8px 16px 16px;
 max-height: calc(100vh - 74px);
 overflow: auto;
}
.nav-left, .nav-right { display: flex; flex-direction: column; }
.primary-nav a {
 color: var(--plum);
 text-decoration: none;
 padding: 12px 4px;
 border-bottom: 1px solid var(--line);
 background-image: linear-gradient(rgba(212, 101, 74, 0.5), rgba(212, 101, 74, 0.5));
 background-repeat: no-repeat;
 background-size: 0 0.32em;
 background-position: 0 86%;
 transition: background-size 0.18s ease;
}
.primary-nav a:hover,
.primary-nav a.is-current { background-size: 100% 0.32em; }
.lead, .intro { max-width: 760px; margin-bottom: 18px; }
.muted { color: var(--muted); }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 28px; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 10px 22px;
 border-radius: 999px;
 border: 1px solid var(--ink);
 background: var(--persimmon);
 color: var(--ink);
 text-decoration: none;
 cursor: pointer;
 transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: var(--persimmon-deep); transform: translateY(-1px); }
.btn:active { transform: none; }
.btn-ghost { background: transparent; color: var(--plum); }
.btn-ghost:hover { background: rgba(212, 101, 74, 0.14); }
.card, .device-card, .guar-item, .collect-card, .search-form, .feature-card, .entry-card, .scene-block, .faq-item, .narrow-search {
 background: #fffefb;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.card { padding: 20px; transition: transform 0.18s ease, box-shadow 0.18s ease; }
.card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(36, 28, 34, 0.1); }
.card-index { margin: 0 0 6px; color: var(--persimmon); font-family: var(--serif); }
.tag-row, .scene-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.tag, .chip {
 display: inline-flex;
 align-items: center;
 min-height: 40px;
 padding: 6px 16px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: #fffefb;
 color: var(--plum);
}
.chip { cursor: pointer; transition: background 0.15s ease, transform 0.15s ease, border-color 0.15s ease; }
.chip:hover { transform: translateY(-1px); background: #fff; }
.chip:active { transform: none; }
.chip.is-on { background: var(--olive-soft); border-color: var(--olive); color: var(--olive); }
.compare-card { border-radius: var(--radius); border: 1px solid var(--line); padding: 22px; box-shadow: var(--shadow); }
.compare-card.is-hd { background: var(--plum); color: #F4EFE6; }
.compare-card.is-hd h3 { color: #F4EFE6; }
.compare-card.is-plain { background: #fffefb; }
.compare-list { list-style: none; display: grid; gap: 10px; }
.compare-list li { position: relative; padding-left: 16px; }
.compare-list li::before {
 content: "";
 width: 7px;
 height: 7px;
 border-radius: 50%;
 background: var(--persimmon);
 position: absolute;
 left: 0;
 top: 0.72em;
}
.compare-card.is-hd .compare-list li::before { background: #F4EFE6; }
.time-item { position: relative; padding: 0 0 22px 22px; }
.time-item::before {
 content: "";
 width: 11px;
 height: 11px;
 border-radius: 50%;
 background: var(--persimmon);
 position: absolute;
 left: -6px;
 top: 8px;
 box-shadow: 0 0 0 4px var(--tint);
}
.news-list, .related-list { list-style: none; border-top: 1px solid var(--line); }
.news-item, .related-list li {
 display: grid;
 grid-template-columns: 92px 84px 1fr;
 gap: 14px;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
 align-items: start;
}
.news-item h3, .related-list h3 { margin: 0 0 4px; font-size: 18px; }
.news-item p, .related-list p { margin: 0; }
.news-item a, .toc a, .text-link, .related-list a {
 color: var(--plum);
 text-decoration: none;
 background-image: linear-gradient(rgba(212, 101, 74, 0.48), rgba(212, 101, 74, 0.48));
 background-repeat: no-repeat;
 background-size: 0 0.36em;
 background-position: 0 92%;
 transition: background-size 0.18s ease;
}
.news-item a:hover, .toc a:hover, .text-link:hover, .related-list a:hover,
.collect-card:hover .text-link { background-size: 100% 0.36em; }
.guar-item { display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 16px; }
.qa-item {
 display: grid;
 grid-template-columns: 48px 1fr;
 gap: 12px;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
}
.qa-no { font-family: var(--serif); font-size: 24px; color: var(--note); }
main section { padding: 72px 0; }
.page-head { background: var(--paper); }
.filter-band, .scene-band, .compare-band, .search-band { background: var(--tint); }
.sheet-list, .related-band, .faq-band { background: var(--paper); }
.head-grid {
 display: grid;
 grid-template-columns: 148px 1fr;
 gap: 28px;
 align-items: end;
}
.chapter-no {
 margin: 0;
 font-family: var(--serif);
 font-size: 42px;
 line-height: 1;
 color: var(--persimmon);
}
.scope { max-width: 760px; margin: 0; color: var(--muted); }
.filter-bar {
 display: flex;
 flex-wrap: wrap;
 gap: 10px;
 align-items: center;
 padding: 14px;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 background: #fffefb;
 box-shadow: var(--shadow);
}
.filter-note {
 margin-left: auto;
 color: var(--note);
 font-size: 14px;
 padding-left: 12px;
 border-left: 2px solid rgba(125, 106, 168, 0.45);
}
.list-layout {
 display: grid;
 grid-template-columns: 1.35fr 0.85fr;
 gap: 22px;
 align-items: start;
}
.feature-card { padding: 16px; display: grid; gap: 12px; }
.feature-card[hidden], .entry-card[hidden] { display: none; }
.cover {
 width: 100%;
 aspect-ratio: 16 / 9;
 object-fit: cover;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: var(--tint);
}
.card-meta, .meta-line {
 display: flex;
 flex-wrap: wrap;
 gap: 8px 14px;
 color: var(--muted);
 font-size: 14px;
}
.duration { color: var(--plum); font-family: var(--serif); }
.margin-note {
 margin: 0;
 padding: 12px 14px;
 border-left: 3px solid var(--note);
 background: var(--tint);
 border-radius: 0 12px 12px 0;
 color: var(--ink);
}
.margin-note span {
 display: block;
 font-family: var(--serif);
 color: var(--note);
 font-size: 13px;
}
.margin-note p { margin: 4px 0 0; }
.side-list { display: grid; gap: 12px; }
.entry-card {
 display: grid;
 grid-template-columns: 168px 1fr;
 gap: 12px;
 padding: 12px;
 transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.entry-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(36, 28, 34, 0.1); }
.scene-layout {
 display: grid;
 grid-template-columns: 0.8fr 1.2fr;
 gap: 28px;
}
.scene-block { padding: 18px 18px 18px 28px; }
.scene-block + .scene-block { margin-top: 12px; }
.scene-block h3 { font-size: 18px; }
.indent { margin-left: 18px; }
.related-list { border-top: 1px solid var(--line); }
.rel-no { font-family: var(--serif); color: var(--persimmon); }
.compare-grid {
 display: grid;
 grid-template-columns: 1.1fr 0.9fr;
 gap: 18px;
}
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 0 18px; }
.faq-item summary {
 cursor: pointer;
 list-style: none;
 min-height: 56px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 font-family: var(--serif);
 font-size: 18px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "＋";
 color: var(--persimmon);
 font-family: var(--sans);
}
.faq-item[open] summary::after { content: "－"; }
.faq-item p { margin: 0 0 16px; color: var(--muted); }
.narrow-search {
 display: grid;
 grid-template-columns: 88px minmax(0, 1fr) auto;
 gap: 12px;
 align-items: center;
 padding: 16px;
 max-width: 860px;
}
.narrow-search label { font-family: var(--serif); color: var(--plum); }
.narrow-search input {
 width: 100%;
 min-height: 44px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: #fff;
 padding: 8px 16px;
}
.site-footer {
 background: var(--plum);
 color: #F4EFE6;
 padding: 36px 0;
}
.site-footer a { color: #F4EFE6; }
.footer-brand {
 margin: 0 0 8px;
 font-family: var(--serif);
 font-size: 24px;
}
.site-footer p { margin: 0 0 8px; }
.copy { margin: 0; color: rgba(244, 239, 230, 0.82); }
:focus-visible {
 outline: 2px solid var(--olive);
 outline-offset: 3px;
}
@media (min-width: 1024px) {
 .nav-toggle { display: none; }
 .primary-nav,
 .primary-nav.is-open {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px minmax(0, 1fr);
  align-items: center;
  min-height: 74px;
  position: static;
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
  max-height: none;
  overflow: visible;
 }
 .nav-left, .nav-right {
  flex-direction: row;
  align-items: center;
  gap: 16px;
 }
 .nav-left { justify-content: flex-end; }
 .nav-right { justify-content: flex-start; }
 .primary-nav a {
  border-bottom: 0;
  padding: 8px 0;
  white-space: nowrap;
 }
}
@media (max-width: 1024px) {
 .head-grid, .list-layout, .scene-layout, .compare-grid { grid-template-columns: 1fr; }
 .filter-note { margin-left: 0; border-left: 0; padding-left: 0; }
 .chapter-no { font-size: 32px; }
}
@media (max-width: 768px) {
 main section { padding: 40px 0; }
 h1 { font-size: 30px; }
 h2 { font-size: 22px; }
 .brand-text { font-size: 18px; }
 .news-item, .related-list li { grid-template-columns: 72px 1fr; }
 .related-list li .rel-no { grid-column: 1; }
 .narrow-search { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
 .container { width: min(var(--container), calc(100% - 24px)); }
 .brand { max-width: calc(100% - 92px); }
 .brand-text { font-size: 15px; }
 .entry-card, .head-grid { grid-template-columns: 1fr; }
 .nav-shell { min-height: 66px; }
 .nav-toggle { top: 14px; }
 .brand { top: 14px; }
}