/* roulang page: index */
:root {
  --ink: #241C17;
  --copper: #C46A3A;
  --teal: #3E6B62;
  --text: #3A312B;
  --muted: #6F655C;
  --paper: #EFE6D8;
  --card: #F7F1E6;
  --line: #DDD4C6;
  --line-strong: #C9BBA8;
  --radius: 2px;
  --shadow: 0 8px 24px rgba(36, 28, 23, .08);
  --header-h: 64px;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --bs-body-color: #3A312B;
  --bs-body-bg: #EFE6D8;
  --bs-body-font-family: "Noto Sans SC", "PingFang SC", sans-serif;
  --bs-link-color: #241C17;
  --bs-link-hover-color: #C46A3A;
  --bs-primary: #241C17;
  --bs-border-radius: 2px;
  --bs-border-color: #DDD4C6;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #3E6B62;
  --bs-accordion-active-bg: #F7F1E6;
  --bs-accordion-active-color: #241C17;
  --bs-accordion-btn-color: #241C17;
  --bs-accordion-bg: #F7F1E6;
  --bs-accordion-border-color: #DDD4C6;
  --bs-accordion-color: #3A312B;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: 16px; color: var(--text); }
a { color: var(--ink); text-decoration: none; }
p { margin: 0 0 0.8rem; }
h1, h2, h3 {
  font-family: var(--serif);
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
}
h1 {
  font-size: clamp(40px, 5vw, 56px);
  line-height: 1.25;
  margin: 0 0 1rem;
}
h2 {
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.3;
  margin: 0 0 1rem;
}
h3 { font-size: 22px; line-height: 1.4; margin: 0 0 0.4rem; }
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
::selection { background: var(--copper); color: var(--card); }
.container-xl { padding-left: 20px; padding-right: 20px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  height: var(--header-h);
}
.bar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.3;
  color: var(--ink);
  max-width: calc(100% - 72px);
}
.brand:hover { color: var(--copper); }
.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--ink);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle:hover { background: var(--copper); color: var(--card); border-color: var(--copper); }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--ink);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 8px;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease;
}
.site-nav a:hover::after,
.site-nav a.is-active::after { transform: scaleX(1); }
.site-nav a:hover { color: var(--copper); transform: translateY(-1px); }
.kicker {
  margin: 0 0 0.7rem;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal);
  font-weight: 500;
}
.lead, .section-lead {
  max-width: 40em;
  color: var(--text);
  font-size: 17px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.2rem 0 1.4rem; }
.btn-solid, .btn-line, .more-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease, border-color 180ms ease;
}
.btn-solid { background: var(--ink); color: var(--card); }
.btn-line, .more-link { background: transparent; color: var(--ink); }
.btn-solid:hover, .btn-line:hover, .more-link:hover {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--card);
  transform: translateY(-1px);
}
.hero-still {
  position: relative;
  margin: 0 0 1.6rem;
  border: 1px solid var(--ink);
  background:
    linear-gradient(160deg, rgba(36,28,23,.04), rgba(36,28,23,.22)),
    repeating-linear-gradient(90deg, #E4D3BE 0 18px, #F3EADF 18px 36px);
  aspect-ratio: 2 / 1;
  overflow: hidden;
}
.series-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  background: rgba(239, 230, 216, .92);
  border-bottom: 1px solid var(--ink);
}
.series-bar a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  border-right: 1px solid var(--line-strong);
}
.series-bar a:hover { background: var(--ink); color: var(--card); }
.still-caption, .capline {
  position: absolute;
  left: 14px;
  bottom: 14px;
  margin: 0;
  padding: 8px 12px;
  background: var(--card);
  border: 1px solid var(--ink);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.capline { transform: translateY(8px); animation: capin 600ms ease forwards; }
.section { padding: 4.5rem 0; border-top: 1px solid var(--line); }
#metrics { border-top: 0; padding-top: 2.2rem; }
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.metric {
  padding: 1.1rem 1rem 1rem;
  border-right: 1px solid var(--line-strong);
}
.metric:last-child { border-right: 0; }
.metric b {
  display: block;
  font-family: var(--serif);
  font-size: 42px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 700;
}
.metric span { display: block; margin-top: 0.45rem; font-size: 13px; color: var(--muted); }
.service-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink); }
.service-item {
  padding: 1.2rem 1.1rem 1.15rem;
  background: var(--card);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.service-item:nth-child(2n) { border-right: 0; }
.service-item p { margin: 0; color: var(--text); font-size: 15px; line-height: 1.75; }
.table-wrap { overflow-x: auto; border-top: 1px solid var(--ink); }
.compare-table { width: 100%; min-width: 640px; border-collapse: collapse; background: var(--card); }
.compare-table th, .compare-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-weight: 400;
  vertical-align: top;
}
.compare-table th { font-family: var(--serif); font-weight: 700; color: var(--ink); background: transparent; }
.compare-table tbody th { width: 22%; color: var(--teal); font-size: 14px; letter-spacing: 0.06em; }
.timeline { display: flex; gap: 0; margin-top: 0.5rem; border-top: 1px solid var(--ink); }
.node { flex: 1; padding: 1.2rem 1rem 0.4rem; border-right: 1px solid var(--line); position: relative; }
.node:last-child { border-right: 0; }
.node::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 16px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--teal);
  background: var(--paper);
  border-radius: 50%;
}
.node time { display: block; font-size: 13px; letter-spacing: 0.08em; color: var(--teal); }
.node strong { display: block; margin: 0.35rem 0; font-family: var(--serif); font-size: 22px; }
.node em { font-style: normal; color: var(--muted); font-size: 14px; }
.news-list { border-top: 1px solid var(--ink); }
.news-wide, .news-full {
  display: grid;
  gap: 18px;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
}
.news-wide { grid-template-columns: 240px 1fr; align-items: center; }
.news-full { grid-template-columns: 1fr; }
.thumb {
  background:
    linear-gradient(180deg, rgba(36,28,23,.02), rgba(36,28,23,.18)),
    repeating-linear-gradient(135deg, #E7D8C4 0 14px, #F7F1E6 14px 28px);
  border: 1px solid var(--ink);
  aspect-ratio: 16 / 9;
}
.news-full .thumb { aspect-ratio: 2 / 1; }
.news-wide:hover .thumb, .news-full:hover .thumb, .collage a:hover .thumb {
  box-shadow: var(--shadow);
}
.meta { margin: 0 0 0.25rem; font-size: 12px; letter-spacing: 0.1em; color: var(--teal); }
.news-list h3 { font-size: 24px; }
.news-list p { margin: 0; max-width: 40em; }
.more-row { display: flex; justify-content: flex-start; padding-top: 1rem; }
.assure-list { border-top: 1px solid var(--ink); }
.assure-list article {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 18px;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.assure-list h3 { font-size: 18px; margin: 0; }
.assure-list p { margin: 0; }
.accordion { --bs-accordion-border-radius: 2px; }
.accordion-item { border: 0; border-bottom: 1px solid var(--line); background: transparent; border-radius: 0; }
.accordion-button {
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 20px;
  min-height: 56px;
  box-shadow: none;
  padding: 0.8rem 0;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--ink); box-shadow: none; }
.accordion-button::after {
  background-image: none;
  content: "+";
  font-family: var(--serif);
  font-size: 22px;
  width: auto;
  height: auto;
  transform: none;
}
.accordion-button:not(.collapsed)::after { content: "–"; transform: none; }
.accordion-body { padding: 0 0 1rem; max-width: 40em; color: var(--text); }
.faq-jump { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 1.2rem; }
.faq-jump a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--teal);
  color: var(--teal);
  font-size: 14px;
  border-radius: var(--radius);
}
.faq-jump a:hover { background: var(--teal); color: var(--card); }
.faq-block { padding: 1rem 0; border-top: 1px solid var(--line); }
.faq-block h3 { font-size: 22px; }
.faq-block p { max-width: 40em; margin: 0; }
.prefer-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 20px;
  background: var(--card);
  border: 1px solid var(--ink);
  padding: 1.2rem;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full, .check, .form-actions, .form-msg { grid-column: 1 / -1; }
.field label, .check { font-size: 14px; color: var(--ink); }
.field input, .field select {
  min-height: 44px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 0 12px;
}
.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }
.choice-row label {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}
.check { display: flex; align-items: center; gap: 8px; min-height: 44px; }
.form-msg { min-height: 1.5em; color: var(--teal); margin: 0; }
.form-msg.is-error { color: var(--copper); }
.entry-list { display: flex; flex-direction: column; border-top: 1px solid var(--ink); }
.entry-bar {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
}
.entry-bar strong { font-family: var(--serif); font-size: 24px; font-weight: 700; }
.entry-bar span { color: var(--text); }
.entry-bar i { font-style: normal; color: var(--copper); }
.entry-bar:hover { background: var(--card); transform: translateY(-1px); }
.collage {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-areas:
    "a b c"
    "a d e";
  gap: 14px;
}
.collage a { display: block; color: inherit; position: relative; }
.collage .c1 { grid-area: a; }
.collage .c2 { grid-area: b; }
.collage .c3 { grid-area: c; }
.collage .c4 { grid-area: d; }
.collage .c5 { grid-area: e; }
.collage .thumb { aspect-ratio: 16 / 10; height: 100%; min-height: 140px; }
.collage .c1 .thumb { aspect-ratio: auto; min-height: 320px; }
.collage figcaption {
  position: absolute;
  left: 10px;
  bottom: 10px;
  right: 10px;
  margin: 0;
  padding: 8px 10px;
  background: var(--card);
  border: 1px solid var(--ink);
  font-size: 13px;
}
.path-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.path-step { padding: 1rem 1rem 0.4rem; border-right: 1px solid var(--line); }
.path-step:last-child { border-right: 0; }
.num {
  font-family: var(--serif);
  font-size: 48px;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.path-step p { font-size: 15px; }
.scale {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.scale-step { padding: 1.1rem 1rem 1rem; border-right: 1px solid var(--line); }
.scale-step:last-child { border-right: 0; }
.tick {
  height: 8px;
  margin-bottom: 0.8rem;
  background: linear-gradient(90deg, var(--teal), var(--teal)) left center / var(--w) 2px no-repeat;
}
.scale-step strong { display: block; font-family: var(--serif); font-size: 28px; }
.scale-step p { margin: 0.3rem 0 0; font-size: 15px; }
.pull {
  margin: 0 0 1rem;
  padding: 0.2rem 0 0.2rem 1rem;
  border-left: 3px solid var(--copper);
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.45;
  color: var(--ink);
}
.editorial-link { font-size: 15px; border-bottom: 1px solid var(--copper); min-height: 44px; display: inline-flex; align-items: center; }
.editorial-link:hover { color: var(--copper); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-cloud a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--teal);
  color: var(--teal);
  border-radius: var(--radius);
  font-size: 14px;
  letter-spacing: 0.06em;
}
.tag-cloud a:hover { background: var(--copper); border-color: var(--copper); color: var(--card); transform: translateY(-1px); }
.site-footer { border-top: 1px solid var(--ink); padding: 2rem 0 2.4rem; background: var(--paper); }
.foot { display: grid; grid-template-columns: 1.4fr auto; gap: 12px 24px; align-items: end; }
.brand-foot { font-family: var(--serif); font-size: 22px; color: var(--ink); margin: 0 0 0.4rem; }
.foot p { margin: 0; color: var(--muted); font-size: 14px; }
.foot-links { display: flex; gap: 16px; }
.foot-links a { min-height: 44px; display: inline-flex; align-items: center; border-bottom: 1px solid transparent; }
.foot-links a:hover { border-bottom-color: var(--copper); color: var(--copper); }
.copy { grid-column: 1 / -1; }
@keyframes capin { to { transform: translateY(0); } }
@media (max-width: 1199.98px) {
  .entry-bar { grid-template-columns: 1fr; gap: 4px; }
}
@media (max-width: 991.98px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--ink);
    flex-direction: column;
    align-items: stretch;
    padding: 6px 12px 12px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; }
  .collage { grid-template-columns: 1fr 1fr; grid-template-areas: "a a" "b c" "d e"; }
  .path-list { grid-template-columns: 1fr 1fr; }
  .path-step:nth-child(2) { border-right: 0; }
  .path-step { border-bottom: 1px solid var(--line); }
}
@media (max-width: 767.98px) {
  body { font-size: 16px; }
  .section { padding: 3rem 0; }
  .metric-strip, .service-list, .scale { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(2) { border-right: 0; }
  .service-item { border-right: 0; }
  .service-item:nth-child(odd) { border-right: 1px solid var(--line); }
  .timeline, .path-list { flex-direction: column; display: flex; }
  .node, .path-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .news-wide { grid-template-columns: 1fr; }
  .assure-list article { grid-template-columns: 1fr; gap: 4px; }
  .prefer-form { grid-template-columns: 1fr; }
  .collage { grid-template-columns: 1fr; grid-template-areas: "a" "b" "c" "d" "e"; }
  .hero-still { aspect-ratio: 16 / 9; }
  h1 { font-size: 34px; }
}
@media (max-width: 575.98px) {
  .brand { font-size: 14px; }
  .metric-strip { grid-template-columns: 1fr 1fr; }
  .scale { grid-template-columns: 1fr; }
  .scale-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .foot { grid-template-columns: 1fr; }
  .series-bar a { padding: 0 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .capline, .site-nav a:hover, .btn-solid:hover, .btn-line:hover, .entry-bar:hover, .tag-cloud a:hover {
    transform: none;
  }
}

/* roulang page: category1 */
:root {
 --ink: #241C17;
 --copper: #C46A3A;
 --teal: #3E6B62;
 --text: #3A312B;
 --muted: #6F655C;
 --paper: #EFE6D8;
 --card: #F7F1E6;
 --line: #DDD4C6;
 --line-strong: #C9BBA8;
 --radius: 2px;
 --shadow: 0 8px 24px rgba(36, 28, 23, .08);
 --header-h: 64px;
 --serif: "Noto Serif SC", "Songti SC", serif;
 --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
 --bs-body-color: #3A312B;
 --bs-body-bg: #EFE6D8;
 --bs-body-font-family: "Noto Sans SC", "PingFang SC", sans-serif;
 --bs-link-color: #241C17;
 --bs-link-hover-color: #C46A3A;
 --bs-primary: #241C17;
 --bs-border-radius: 2px;
 --bs-border-color: #DDD4C6;
 --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #3E6B62;
 --bs-accordion-active-bg: #F7F1E6;
 --bs-accordion-active-color: #241C17;
 --bs-accordion-btn-color: #241C17;
 --bs-accordion-bg: #F7F1E6;
 --bs-accordion-border-color: #DDD4C6;
 --bs-accordion-color: #3A312B;
}
/* roulang page: category1 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 background: var(--paper);
 color: var(--text);
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.8;
 text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: 16px; color: var(--text); }
a { color: var(--ink); text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, label:focus-within {
 outline: 2px solid var(--teal);
 outline-offset: 2px;
}
.container-xl { padding-left: 20px; padding-right: 20px; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: var(--paper);
 border-bottom: 1px solid var(--ink);
 min-height: var(--header-h);
}
.bar {
 min-height: var(--header-h);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 position: relative;
}
.brand {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 16px;
 line-height: 1.3;
 color: var(--ink);
 max-width: calc(100% - 72px);
}
.brand:hover { color: var(--copper); }
.nav-toggle {
 display: none;
 min-width: 44px;
 min-height: 44px;
 padding: 0 12px;
 border: 1px solid var(--ink);
 background: transparent;
 border-radius: var(--radius);
 cursor: pointer;
}
.nav-toggle:hover, .nav-toggle[aria-expanded="true"] {
 background: var(--copper);
 color: var(--card);
 border-color: var(--copper);
}
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
 position: relative;
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 14px;
 font-size: 15px;
 color: var(--ink);
}
.site-nav a::after {
 content: "";
 position: absolute;
 left: 14px;
 right: 14px;
 bottom: 8px;
 height: 2px;
 background: var(--copper);
 transform: scaleX(0);
 transform-origin: left center;
 transition: transform 180ms ease;
}
.site-nav a:hover::after,
.site-nav a.is-active::after { transform: scaleX(1); }
.site-nav a:hover { color: var(--copper); transform: translateY(-1px); }
.crumb-wrap {
 border-bottom: 1px solid var(--line);
 background: var(--paper);
}
.crumb-row {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 48px;
 padding-top: 6px;
 padding-bottom: 6px;
}
.crumbs {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 8px;
 margin: 0;
 font-size: 13px;
 color: var(--muted);
}
.crumbs a { color: var(--ink); min-height: 44px; display: inline-flex; align-items: center; }
.crumbs a:hover { color: var(--copper); }
.crumbs span[aria-hidden="true"] { color: var(--line-strong); }
.crumbs .here { color: var(--muted); }
.back-up {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 font-size: 13px;
 border-bottom: 1px solid transparent;
}
.back-up:hover { color: var(--copper); border-bottom-color: var(--copper); }
.section { padding: 4.2rem 0; border-top: 1px solid var(--line); }
.section:first-of-type { border-top: 0; padding-top: 2.6rem; }
.kicker {
 margin: 0 0 0.6rem;
 font-size: 12px;
 letter-spacing: 0.14em;
 color: var(--teal);
 font-weight: 500;
}
h1, h2, h3 {
 font-family: var(--serif);
 color: var(--ink);
 font-weight: 700;
 line-height: 1.25;
}
h1 { font-size: clamp(32px, 5vw, 52px); margin: 0 0 0.8rem; max-width: 14em; }
h2 { font-size: clamp(26px, 3vw, 34px); margin: 0 0 1rem; }
h3 { font-size: 22px; margin: 0 0 0.35rem; }
.scope { max-width: 38em; margin: 0; color: var(--text); }
.mast-meta {
 display: flex;
 flex-wrap: wrap;
 gap: 10px 22px;
 margin: 1.2rem 0 0;
 padding-top: 1rem;
 border-top: 1px solid var(--ink);
 font-size: 14px;
 color: var(--muted);
}
.mast-meta strong { color: var(--ink); font-weight: 700; }
.adult-line { margin: 1rem 0 0; font-size: 14px; color: var(--teal); }
.filter-bar {
 display: grid;
 grid-template-columns: repeat(3, minmax(0, 1fr));
 border: 1px solid var(--ink);
 background: var(--card);
}
.filter-bar fieldset {
 margin: 0;
 padding: 0.85rem 0.9rem 1rem;
 border: 0;
 border-right: 1px solid var(--line);
 min-width: 0;
}
.filter-bar fieldset:last-child { border-right: 0; }
.filter-bar legend {
 float: none;
 font-size: 12px;
 letter-spacing: 0.12em;
 color: var(--teal);
 padding: 0;
 margin-bottom: 0.45rem;
}
.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }
.choice-row label {
 position: relative;
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 padding: 0 12px;
 border: 1px solid var(--line-strong);
 background: transparent;
 cursor: pointer;
 font-size: 14px;
}
.choice-row input {
 position: absolute;
 opacity: 0;
 inset: 0;
 margin: 0;
 cursor: pointer;
}
.choice-row label:has(input:checked) {
 background: var(--ink);
 color: var(--card);
 border-color: var(--ink);
}
.choice-row label:hover { border-color: var(--copper); color: var(--copper); }
.choice-row label:has(input:checked):hover { color: var(--card); }
.result-note {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 align-items: baseline;
 margin: 0.9rem 0 0;
 font-size: 14px;
 color: var(--muted);
}
.list-layout { align-items: stretch; }
.film-list { border-top: 1px solid var(--ink); }
.film-row { border-bottom: 1px solid var(--line); background: transparent; }
.film-row a {
 display: grid;
 grid-template-columns: 220px 1fr;
 gap: 16px;
 padding: 1rem 0;
 color: inherit;
}
.film-row.is-compact a { grid-template-columns: 120px 1fr; padding: 0.75rem 0; }
.film-row h3 { font-size: 24px; transition: color 180ms ease, transform 180ms ease; }
.film-row.is-compact h3 { font-size: 18px; }
.film-row p { margin: 0; max-width: 36em; font-size: 15px; }
.film-row:hover h3 { color: var(--copper); transform: translateY(-1px); }
.film-row:hover .thumb { box-shadow: var(--shadow); }
.thumb {
 position: relative;
 background:
 linear-gradient(160deg, rgba(36,28,23,.05), rgba(36,28,23,.2)),
 repeating-linear-gradient(90deg, #E4D3BE 0 16px, #F3EADF 16px 32px);
 border: 1px solid var(--ink);
 aspect-ratio: 16 / 9;
 overflow: hidden;
}
.film-row.is-compact .thumb { aspect-ratio: 2 / 1; }
.thumb-cap {
 position: absolute;
 left: 0;
 right: 0;
 bottom: 0;
 padding: 4px 8px;
 background: var(--ink);
 color: var(--card);
 font-size: 12px;
 letter-spacing: 0.06em;
}
.meta { margin: 0 0 0.25rem; font-size: 12px; letter-spacing: 0.1em; color: var(--teal); }
.side-panel {
 border-left: 1px solid var(--line);
 padding: 0 0 0 1.25rem;
 margin-left: 0.4rem;
}
.side-panel h2 { font-size: 22px; }
.side-dl { margin: 0; }
.side-dl div {
 display: grid;
 grid-template-columns: 88px 1fr;
 gap: 8px;
 padding: 0.7rem 0;
 border-bottom: 1px solid var(--line);
}
.side-dl dt { margin: 0; font-size: 13px; color: var(--teal); letter-spacing: 0.06em; }
.side-dl dd { margin: 0; }
.empty-note {
 display: none;
 margin: 0;
 padding: 1.2rem 0;
 color: var(--muted);
 border-bottom: 1px solid var(--line);
}
.more-row { display: flex; justify-content: flex-start; padding-top: 1rem; }
.btn-solid, .btn-line, .more-link {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--radius);
 border: 1px solid var(--ink);
 cursor: pointer;
 transition: background 180ms ease, color 180ms ease, transform 180ms ease, border-color 180ms ease;
}
.btn-solid { background: var(--ink); color: var(--card); }
.btn-line, .more-link { background: transparent; color: var(--ink); }
.btn-solid:hover, .btn-line:hover, .more-link:hover {
 background: var(--copper);
 border-color: var(--copper);
 color: var(--card);
 transform: translateY(-1px);
}
.note-grid {
 display: grid;
 grid-template-columns: 1.2fr 0.8fr;
 border-top: 1px solid var(--ink);
}
.note-card {
 padding: 1.2rem 1.2rem 1.3rem 0;
 border-bottom: 1px solid var(--line);
}
.note-card + .note-card {
 padding-left: 1.4rem;
 border-left: 1px solid var(--line);
}
.note-card a:hover h3 { color: var(--copper); }
.note-card p { margin: 0; max-width: 36em; }
.step-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.step-list li {
 display: grid;
 grid-template-columns: 72px 1fr;
 gap: 16px;
 padding: 1.05rem 0;
 border-bottom: 1px solid var(--line);
}
.step-no {
 font-family: var(--serif);
 font-size: 36px;
 line-height: 1;
 color: var(--copper);
}
.step-list h3 { font-size: 20px; }
.step-list p { margin: 0; max-width: 40em; }
.rhythm {
 display: grid;
 grid-template-columns: 1fr 1fr;
 border: 1px solid var(--ink);
 background: var(--card);
}
.rhythm article { padding: 1.2rem 1.2rem 1.3rem; }
.rhythm article + article { border-left: 1px solid var(--line); }
.scale { margin: 0.4rem 0 0.8rem; padding: 0; list-style: none; }
.scale li {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 padding: 0.45rem 0;
 border-bottom: 1px solid var(--line);
 font-size: 15px;
}
.scale b { font-weight: 500; color: var(--ink); }
.tick {
 height: 2px;
 background: linear-gradient(90deg, var(--teal), var(--copper));
 margin-top: 0.8rem;
}
.accordion { --bs-accordion-border-width: 0; }
.accordion-item { border: 0; border-bottom: 1px solid var(--line); background: transparent; border-radius: 0; }
.accordion-button {
 background: transparent;
 color: var(--ink);
 font-family: var(--serif);
 font-size: 20px;
 min-height: 56px;
 box-shadow: none;
 padding: 0.8rem 0;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--ink); box-shadow: none; }
.accordion-button:focus { box-shadow: none; outline: 2px solid var(--teal); outline-offset: 2px; }
.accordion-button::after {
 background-image: none;
 content: "+";
 font-family: var(--serif);
 font-size: 22px;
 width: auto;
 height: auto;
 transform: none;
}
.accordion-button:not(.collapsed)::after { content: "–"; transform: none; }
.accordion-body { padding: 0 0 1rem; max-width: 40em; color: var(--text); }
.return-row { display: flex; flex-wrap: wrap; gap: 12px; }
.site-footer {
 border-top: 1px solid var(--ink);
 padding: 2rem 0 2.4rem;
 background: var(--paper);
}
.foot {
 display: grid;
 grid-template-columns: 1.4fr auto;
 gap: 12px 24px;
 align-items: end;
}
.brand-foot {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 20px;
 color: var(--ink);
 margin: 0 0 0.3rem;
}
.site-footer p { margin: 0; color: var(--muted); }
.foot-links { display: flex; gap: 8px; }
.foot-links a {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 padding: 0 12px;
 border-bottom: 2px solid transparent;
}
.foot-links a:hover { color: var(--copper); border-bottom-color: var(--copper); }
.copy { grid-column: 1 / -1; font-size: 13px; }
@media (max-width: 991.98px) {
 .film-row a, .film-row.is-compact a { grid-template-columns: 160px 1fr; }
 .side-panel { border-left: 0; border-top: 1px solid var(--ink); margin: 1.2rem 0 0; padding: 1rem 0 0; }
 .note-grid, .rhythm, .filter-bar { grid-template-columns: 1fr; }
 .filter-bar fieldset, .note-card + .note-card, .rhythm article + article { border-right: 0; border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
 .note-card { padding-right: 0; }
}
@media (max-width: 767.98px) {
 .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
 .site-nav {
 display: none;
 position: absolute;
 top: 100%;
 left: 0;
 right: 0;
 flex-direction: column;
 align-items: stretch;
 background: var(--paper);
 border-bottom: 1px solid var(--ink);
 padding: 6px 12px 10px;
}
 .site-nav.is-open { display: flex; }
 .site-nav a { width: 100%; }
 .crumb-row { align-items: flex-start; flex-direction: column; gap: 0; }
 h1 { font-size: 32px; }
 .film-row a, .film-row.is-compact a { grid-template-columns: 1fr; }
 .section { padding: 3rem 0; }
 .foot { grid-template-columns: 1fr; }
}
@media (max-width: 519.98px) {
 .choice-row label { flex: 1 1 auto; justify-content: center; }
 .step-list li { grid-template-columns: 48px 1fr; }
 .step-no { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after {
 transition: none !important;
 animation: none !important;
 }
}

/* roulang page: category2 */
:root {
 --ink: #241C17;
 --copper: #C46A3A;
 --teal: #3E6B62;
 --text: #3A312B;
 --muted: #6F655C;
 --paper: #EFE6D8;
 --card: #F7F1E6;
 --line: #DDD4C6;
 --line-strong: #C9BBA8;
 --radius: 2px;
 --shadow: 0 8px 24px rgba(36, 28, 23, .08);
 --header-h: 64px;
 --serif: "Noto Serif SC", "Songti SC", serif;
 --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
 --bs-body-color: #3A312B;
 --bs-body-bg: #EFE6D8;
 --bs-body-font-family: "Noto Sans SC", "PingFang SC", sans-serif;
 --bs-link-color: #241C17;
 --bs-link-hover-color: #C46A3A;
 --bs-primary: #241C17;
 --bs-border-radius: 2px;
 --bs-border-color: #DDD4C6;
 --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #3E6B62;
 --bs-accordion-active-bg: #F7F1E6;
 --bs-accordion-active-color: #241C17;
 --bs-accordion-btn-color: #241C17;
 --bs-accordion-bg: #F7F1E6;
 --bs-accordion-border-color: #DDD4C6;
 --bs-accordion-color: #3A312B;
}
/* roulang page: category2 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 background: var(--paper);
 color: var(--text);
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.8;
 text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: 16px; color: var(--text); }
a { color: var(--ink); text-decoration: none; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.container-xl { padding-left: 20px; padding-right: 20px; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: var(--paper);
 border-bottom: 1px solid var(--ink);
 min-height: var(--header-h);
}
.bar {
 min-height: var(--header-h);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 position: relative;
}
.brand {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 16px;
 line-height: 1.3;
 color: var(--ink);
 max-width: calc(100% - 72px);
}
.brand:hover { color: var(--copper); }
.nav-toggle {
 display: none;
 min-width: 44px;
 min-height: 44px;
 padding: 0 12px;
 border: 1px solid var(--ink);
 background: transparent;
 border-radius: var(--radius);
 cursor: pointer;
}
.nav-toggle:hover { background: var(--copper); color: var(--card); border-color: var(--copper); }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a {
 position: relative;
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 14px;
 font-size: 15px;
 color: var(--ink);
}
.site-nav a::after {
 content: "";
 position: absolute;
 left: 14px;
 right: 14px;
 bottom: 8px;
 height: 2px;
 background: var(--copper);
 transform: scaleX(0);
 transform-origin: left center;
 transition: transform 180ms ease;
}
.site-nav a:hover::after,
.site-nav a.is-active::after { transform: scaleX(1); }
.site-nav a:hover { color: var(--copper); transform: translateY(-1px); }
.site-nav a.is-active { color: var(--ink); }
.crumb-bar {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 12px;
 min-height: 48px;
 padding-top: 8px;
 padding-bottom: 8px;
 font-size: 13px;
 color: var(--muted);
 border-bottom: 1px solid var(--line);
}
.crumb-list {
 display: flex;
 flex-wrap: wrap;
 gap: 6px;
 list-style: none;
 margin: 0;
 padding: 0;
}
.crumb-list a { color: var(--muted); min-height: 44px; display: inline-flex; align-items: center; }
.crumb-list a:hover { color: var(--copper); }
.crumb-list [aria-current="page"] { color: var(--ink); }
.sep { color: var(--line-strong); display: inline-flex; align-items: center; }
.back-up {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 color: var(--ink);
 border-bottom: 1px solid transparent;
}
.back-up:hover { color: var(--copper); border-bottom-color: var(--copper); }
.section { padding: 4.5rem 0; border-top: 1px solid var(--line); }
.section.tight { padding: 1.6rem 0 1.8rem; }
.section.alt { background: #F4EBDD; }
.section h2 {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 32px;
 line-height: 1.3;
 margin: 0 0 1rem;
 color: var(--ink);
}
.meta {
 margin: 0 0 0.35rem;
 font-size: 12px;
 letter-spacing: 0.12em;
 color: var(--teal);
}
.kicker {
 margin: 0 0 0.6rem;
 font-size: 12px;
 letter-spacing: 0.14em;
 color: var(--teal);
}
.page-mast { padding: 2.2rem 0 3rem; border-top: 0; }
.mast-grid {
 display: grid;
 grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
 gap: 36px;
 align-items: end;
}
.page-mast h1 {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 46px;
 line-height: 1.25;
 margin: 0 0 0.8rem;
 color: var(--ink);
 max-width: 12em;
}
.scope, .subline {
 max-width: 36em;
 margin: 0 0 0.7rem;
 font-size: 17px;
 line-height: 1.8;
}
.date-line { margin: 0; color: var(--muted); font-size: 14px; }
.scene-xl {
 margin: 0;
 font-family: var(--serif);
 font-weight: 700;
 font-size: 72px;
 line-height: 1.05;
 color: var(--ink);
 letter-spacing: 0.04em;
}
.scene-xl span {
 display: block;
 margin-top: 10px;
 width: 72px;
 height: 2px;
 background: var(--copper);
}
.scene-note {
 margin: 0.8rem 0 0;
 color: var(--muted);
 font-size: 14px;
 max-width: 16em;
}
.index-sec h2 { font-size: 22px; margin-bottom: 0.8rem; }
.scene-index {
 display: flex;
 gap: 0;
 overflow-x: auto;
 border-top: 1px solid var(--ink);
 border-bottom: 1px solid var(--ink);
 background: var(--card);
}
.scene-index a {
 flex: 0 0 auto;
 min-height: 48px;
 display: inline-flex;
 align-items: center;
 padding: 0 18px;
 font-size: 13px;
 letter-spacing: 0.08em;
 border-right: 1px solid var(--line-strong);
 color: var(--ink);
}
.scene-index a:hover { background: var(--ink); color: var(--card); }
.scene-board { border-top: 1px solid var(--ink); }
.scene-row {
 display: grid;
 grid-template-columns: 200px minmax(0, 1fr);
 gap: 28px;
 padding: 1.7rem 0;
 border-bottom: 1px solid var(--line);
}
.scene-name {
 margin: 0;
 font-family: var(--serif);
 font-size: 28px;
 line-height: 1.3;
 color: var(--ink);
}
.scene-kicker { margin: 0.4rem 0 0; color: var(--teal); font-size: 12px; letter-spacing: 0.1em; }
.scene-cards {
 display: grid;
 grid-template-columns: 1.25fr 0.75fr;
 gap: 14px;
 align-items: start;
}
.entry {
 display: block;
 color: inherit;
 background: var(--card);
 border: 1px solid transparent;
}
.entry:hover .still { box-shadow: var(--shadow); }
.entry:hover h3 { color: var(--copper); }
.still {
 position: relative;
 border: 1px solid var(--ink);
 border-radius: 0;
 background:
  linear-gradient(165deg, rgba(36,28,23,.04), rgba(36,28,23,.2)),
  repeating-linear-gradient(90deg, #E4D3BE 0 16px, #F3EADF 16px 32px);
 aspect-ratio: 16 / 9;
 overflow: hidden;
}
.entry.tall .still { aspect-ratio: 2 / 1; }
.still-cap {
 position: absolute;
 left: 0;
 bottom: 0;
 max-width: 100%;
 background: var(--ink);
 color: var(--card);
 font-size: 12px;
 letter-spacing: 0.06em;
 line-height: 1.4;
 padding: 6px 10px;
}
.entry h3 {
 font-family: var(--serif);
 font-size: 20px;
 margin: 0.7rem 0 0.25rem;
 color: var(--ink);
}
.entry p { margin: 0 0 0.35rem; font-size: 15px; line-height: 1.75; max-width: 38em; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 0.35rem; }
.tag {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 8px;
 border: 1px solid var(--teal);
 color: var(--teal);
 font-size: 12px;
 letter-spacing: 0.06em;
 border-radius: var(--radius);
}
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.more-row { display: flex; justify-content: flex-start; padding-top: 1.2rem; }
.btn-solid, .btn-line, .more-link, .text-link {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--radius);
 border: 1px solid var(--ink);
 cursor: pointer;
 transition: background 180ms ease, color 180ms ease, transform 180ms ease, border-color 180ms ease;
}
.btn-solid { background: var(--ink); color: var(--card); }
.btn-line, .more-link { background: transparent; color: var(--ink); }
.btn-solid:hover, .btn-line:hover, .more-link:hover {
 background: var(--copper);
 border-color: var(--copper);
 color: var(--card);
 transform: translateY(-1px);
}
.text-link {
 border: 0;
 border-bottom: 1px solid var(--ink);
 border-radius: 0;
 padding: 0 0 2px;
 min-height: 44px;
 background: transparent;
}
.text-link:hover { color: var(--copper); border-bottom-color: var(--copper); transform: translateY(-1px); }
.split-read {
 display: grid;
 grid-template-columns: 1fr 1fr;
 border-top: 1px solid var(--ink);
}
.split-read article {
 padding: 1.4rem 1.4rem 1.5rem 0;
}
.split-read article + article {
 padding-left: 1.6rem;
 border-left: 1px solid var(--line-strong);
}
.split-read h3 {
 font-family: var(--serif);
 font-size: 28px;
 margin: 0 0 0.6rem;
}
.split-read p { margin: 0 0 1rem; max-width: 34em; }
.ruler {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 border-top: 1px solid var(--ink);
 position: relative;
}
.ruler::before {
 content: "";
 position: absolute;
 left: 0;
 right: 0;
 top: 28px;
 height: 1px;
 background: var(--copper);
}
.ruler div { padding: 18px 16px 0 0; position: relative; }
.ruler b {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 8px;
 background: var(--paper);
 border: 1px solid var(--ink);
 font-weight: 500;
 font-size: 14px;
 position: relative;
 z-index: 1;
}
.section.alt .ruler b { background: #F4EBDD; }
.ruler span {
 display: block;
 margin-top: 0.8rem;
 color: var(--text);
 font-size: 15px;
 line-height: 1.7;
 max-width: 18em;
}
.assure-list { border-top: 1px solid var(--ink); }
.assure-list article {
 display: grid;
 grid-template-columns: 140px 1fr;
 gap: 18px;
 padding: 1rem 0;
 border-bottom: 1px solid var(--line);
}
.assure-list h3 { font-family: var(--serif); font-size: 18px; margin: 0; }
.assure-list p { margin: 0; max-width: 40em; }
.accordion { --bs-accordion-border-width: 0; }
.accordion-item {
 border: 0;
 border-bottom: 1px solid var(--line);
 background: transparent;
 border-radius: 0;
}
.accordion-button {
 background: transparent;
 color: var(--ink);
 font-family: var(--serif);
 font-size: 20px;
 min-height: 56px;
 box-shadow: none;
 padding: 0.85rem 0;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--ink); box-shadow: none; }
.accordion-button:focus { box-shadow: 0 0 0 2px var(--teal); }
.accordion-button::after {
 background-image: none;
 content: "+";
 font-family: var(--serif);
 font-size: 22px;
 width: auto;
 height: auto;
 transform: none;
}
.accordion-button:not(.collapsed)::after { content: "–"; transform: none; }
.accordion-body { padding: 0 0 1rem; max-width: 40em; color: var(--text); }
.prefer-band {
 display: grid;
 grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
 gap: 28px;
 align-items: start;
}
.prefer-form {
 display: flex;
 flex-wrap: wrap;
 gap: 12px;
 align-items: end;
 padding: 1rem 0 0;
 border-top: 1px solid var(--ink);
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: min(100%, 280px); flex: 1; }
.field label { font-size: 13px; letter-spacing: 0.08em; color: var(--teal); }
.field select {
 min-height: 44px;
 padding: 0 12px;
 background: var(--card);
 border: 1px solid var(--ink);
 border-radius: var(--radius);
}
.field select:hover { border-color: var(--copper); }
.done-note {
 margin: 0.9rem 0 0;
 color: var(--teal);
}
.site-footer {
 border-top: 1px solid var(--ink);
 padding: 2.4rem 0 2rem;
 background: var(--card);
}
.foot { display: grid; gap: 10px; }
.brand-foot {
 font-family: var(--serif);
 font-weight: 700;
 font-size: 20px;
 margin: 0;
 color: var(--ink);
}
.site-footer p { margin: 0; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot-links a {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 border-bottom: 1px solid transparent;
}
.foot-links a:hover { color: var(--copper); border-bottom-color: var(--copper); }
.copy { color: var(--muted); font-size: 14px; }
@media (max-width: 991.98px) {
 .page-mast h1 { font-size: 38px; }
 .scene-xl { font-size: 56px; }
 .mast-grid, .scene-row, .prefer-band { grid-template-columns: 1fr; gap: 18px; }
 .scene-cards { grid-template-columns: 1fr 1fr; }
 .split-read { grid-template-columns: 1fr; }
 .split-read article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 767.98px) {
 .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
 .site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: stretch;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  padding: 6px 12px 10px;
  z-index: 30;
 }
 .site-nav.is-open { display: flex; }
 .site-nav a:hover { transform: none; }
 .page-mast { padding-top: 1.6rem; }
 .page-mast h1 { font-size: 32px; }
 .scene-xl { font-size: 42px; }
 .section { padding: 3rem 0; }
 .section h2 { font-size: 26px; }
 .scene-cards, .ruler { grid-template-columns: 1fr; }
 .ruler::before { display: none; }
 .assure-list article { grid-template-columns: 1fr; gap: 4px; }
 .crumb-bar { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 575.98px) {
 .brand { font-size: 14px; }
 .entry.tall .still, .still { aspect-ratio: 16 / 9; }
 .prefer-form .btn-solid { width: 100%; }
}
@media (min-width: 1200px) {
 .page-mast h1 { font-size: 52px; }
 .scope, .subline, .split-read p, .entry p { max-width: 38em; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after {
  transition: none !important;
  animation: none !important;
 }
 .site-nav a:hover, .btn-solid:hover, .more-link:hover, .text-link:hover { transform: none; }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}