/* roulang page: index */
:root {
  --ink: #211814;
  --plum: #4A2433;
  --rose: #B5525A;
  --rose-deep: #8C3A42;
  --ivory: #F6F1EA;
  --stone: #EBE3D8;
  --sand: #D9CBBA;
  --sage: #6E7F68;
  --line: rgba(33,24,20,.12);
  --shadow: 0 10px 28px rgba(74,36,51,.08);
  --shadow-deep: 0 16px 36px rgba(74,36,51,.14);
  --muted: #5E564F;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --bs-primary: #4A2433;
  --bs-link-color: #4A2433;
  --bs-link-hover-color: #8C3A42;
  --bs-body-color: #211814;
  --bs-body-bg: #F6F1EA;
  --bs-border-radius: 4px;
  --bs-accordion-btn-focus-box-shadow: none;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-active-color: #211814;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--ivory);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--plum); text-decoration: none; }
button, input { font-family: inherit; }
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 .55em;
}
h1 { font-size: 56px; }
h2 { font-size: 40px; }
h3 { font-size: 22px; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
.prose { max-width: 42em; }
.muted { color: var(--muted); }
.num { font-variant-numeric: tabular-nums; }
.link-grow {
  color: var(--plum);
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size .2s ease, color .2s ease;
}
.link-grow:hover { background-size: 100% 1px; color: var(--rose-deep); }
:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }
.btn-solid, .btn-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 4px;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-solid { background: var(--plum); color: var(--ivory); border: 1px solid var(--plum); }
.btn-solid:hover { background: #3A1C28; color: var(--ivory); border-color: #3A1C28; }
.btn-solid:active, .btn-line:active { transform: translateY(1px); }
.btn-line { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--ivory); }
.badge-soft {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--ivory);
  color: var(--plum);
  font-size: 13px;
  line-height: 1.4;
  padding: 3px 10px;
  white-space: nowrap;
}
.sidenav {
  position: fixed;
  inset: 0 auto 0 0;
  width: 232px;
  background: var(--ivory);
  border-right: 1px solid var(--line);
  padding: 28px 18px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--plum);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.25;
  font-weight: 600;
}
.brand:hover { color: var(--rose-deep); }
.arc {
  width: 16px;
  height: 28px;
  border: 1px solid var(--rose);
  border-left: 0;
  border-radius: 0 20px 20px 0;
  display: block;
  flex: none;
}
.side-links { display: flex; flex-direction: column; gap: 4px; }
.side-links a {
  display: block;
  color: var(--ink);
  padding: 10px 12px;
  border-radius: 4px;
  transition: background-color .2s ease, color .2s ease;
}
.side-links a:hover { background: var(--stone); color: var(--ink); }
.side-links a.is-current {
  box-shadow: inset 2px 0 0 var(--rose);
  font-weight: 650;
  background: rgba(181,82,90,.06);
}
.page-wrap { margin-left: 232px; min-height: 100vh; }
.topbar { display: none; }
.thinbar {
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  padding: 10px 0;
}
.inner { max-width: 1120px; margin: 0 auto; padding: 0 40px; }
.section { padding: 100px 0; }
.band-ivory { background: var(--ivory); }
.band-stone { background: var(--stone); }
.band-plum { background: var(--plum); color: var(--ivory); }
.band-plum h2, .band-plum p { color: var(--ivory); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  gap: 48px;
  align-items: end;
}
.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--rose-deep);
  font-size: 13px;
  letter-spacing: 0;
  margin-bottom: 18px;
}
.eyebrow span { border-top: 1px solid var(--rose); padding-top: 6px; }
.hero-lead { font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.hero-mark { min-height: 320px; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; }
.hero-mark strong {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(96px, 11vw, 156px);
  line-height: .84;
  color: var(--plum);
  display: block;
}
.nodes { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-top: 18px; width: 100%; }
.nodes li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  border-top: 1px solid var(--line);
  padding-top: 8px;
  font-size: 15px;
}
.nodes em { font-style: normal; font-variant-numeric: tabular-nums; color: var(--rose-deep); min-width: 52px; }
.pain-row, .step, .news-item, .entry-row {
  display: grid;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.pain-row { grid-template-columns: 148px minmax(0, 1fr); align-items: start; }
.pain-row h3 { margin: 0; font-size: 22px; }
.pain-row p { margin: 0; color: var(--muted); }
.path-grid { display: grid; grid-template-columns: minmax(0, 42em) 280px; gap: 48px; align-items: start; }
.side-note { border-left: 2px solid var(--rose); padding: 4px 0 4px 16px; color: var(--muted); font-size: 15px; }
.side-note strong { display: block; color: var(--ink); font-family: var(--serif); font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step { grid-template-columns: 72px minmax(0, 1fr); }
.idx { font-family: var(--serif); font-size: 28px; color: var(--rose-deep); font-variant-numeric: tabular-nums; line-height: 1.2; }
.step p { margin: 0 0 12px; color: var(--muted); max-width: 40em; }
.scene-rail { display: grid; grid-template-columns: 1.35fr .9fr .75fr; gap: 16px; align-items: stretch; }
.scene-card {
  background: var(--ivory);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
  padding: 22px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.scene-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-deep); }
.scene-card:nth-child(1) { padding-bottom: 48px; }
.scene-card:nth-child(2) { margin-top: 28px; }
.scene-card:nth-child(3) { margin-top: 56px; padding-bottom: 28px; }
.scene-card p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.stat-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 12px; }
.stat-num {
  font-family: var(--serif);
  font-size: 64px;
  line-height: .95;
  color: var(--plum);
  font-variant-numeric: tabular-nums;
  animation: fadeup .6s ease both;
}
.stat-row p { margin: 8px 0 0; color: var(--muted); }
.quote-wrap { display: grid; grid-template-columns: 1.25fr .85fr; gap: 28px; align-items: stretch; }
.quote {
  margin: 0;
  background: var(--ivory);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
  padding: 28px 26px 22px;
}
.quote:last-child { margin-top: 36px; }
.quote p {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.45;
  margin: 0 0 16px;
}
.quote p::before { content: "“"; color: var(--rose); font-size: 42px; line-height: 0; margin-right: 4px; position: relative; top: 10px; }
.quote figcaption { color: var(--muted); font-size: 15px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.tag {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ivory);
  color: var(--ink);
  padding: 8px 14px;
  font-size: 15px;
}
.news-item { grid-template-columns: 108px minmax(0, 1fr); }
.news-item h3 { font-size: 22px; margin: 0 0 6px; }
.news-item p { margin: 0; color: var(--muted); }
.more-row { padding-top: 16px; }
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: 48px; }
.metric {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.metric b { font-weight: 600; font-variant-numeric: tabular-nums; }
.metric span { color: var(--muted); }
.entry-row { grid-template-columns: 168px minmax(0, 1fr) auto; align-items: center; }
.entry-row h3 { margin: 0 0 4px; font-size: 22px; }
.entry-row p { margin: 0; color: var(--muted); }
.device-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 36px; align-items: start; }
.device-copy h3 { margin-bottom: 8px; }
.ph { width: 100%; border-radius: 4px; border: 1px solid var(--line); background: var(--sand); object-fit: cover; }
.ph-narrow { aspect-ratio: 3/4; }
.ph-wide { aspect-ratio: 16/9; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); }
.compare article { padding: 22px 22px 8px 0; }
.compare article + article { border-left: 1px solid var(--line); padding-left: 28px; }
.compare ul { list-style: none; }
.compare li { padding: 12px 0; border-top: 1px solid var(--line); }
.compare li span { display: block; color: var(--rose-deep); font-size: 14px; }
.accordion { --bs-accordion-bg: transparent; --bs-accordion-border-color: transparent; --bs-accordion-btn-padding-x: 0; --bs-accordion-btn-padding-y: 16px; --bs-accordion-body-padding-x: 0; --bs-accordion-body-padding-y: 0; }
.accordion-item { background: transparent; border: 0; border-top: 1px solid var(--line); border-radius: 0; }
.accordion-button {
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  box-shadow: none;
  padding-left: 0;
  padding-right: 0;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--ink); box-shadow: none; }
.accordion-button:focus { box-shadow: none; border-color: transparent; }
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%234A2433' stroke-width='1.2' d='M2 5l6 6 6-6'/%3E%3C/svg%3E");
  width: 14px;
  height: 14px;
  background-size: 14px;
}
.accordion-body { color: var(--muted); padding: 0 0 18px; max-width: 42em; }
.tl { margin: 8px 0 0 8px; border-left: 1px solid var(--line); }
.tl-item { position: relative; padding: 0 0 28px 24px; }
.tl-item::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sage);
  position: absolute;
  left: -4px;
  top: 8px;
}
.tl-item time { display: block; color: var(--rose-deep); font-variant-numeric: tabular-nums; font-size: 14px; }
.cta-actions { margin-top: 8px; }
.band-plum .btn-line { color: var(--ivory); border-color: rgba(246,241,234,.7); }
.band-plum .btn-line:hover { background: var(--ivory); color: var(--plum); border-color: var(--ivory); }
.footer {
  background: var(--ink);
  color: var(--ivory);
  padding: 36px 0;
}
.footer-inner { display: flex; justify-content: space-between; gap: 18px; align-items: end; }
.footer strong { display: block; font-family: var(--serif); font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.footer p { margin: 0; color: rgba(246,241,234,.78); font-size: 14px; }
.footer a { color: var(--ivory); }
.offcanvas { background: var(--ivory); color: var(--ink); width: min(320px, 88vw); }
.offcanvas-header { border-bottom: 1px solid var(--line); padding: 18px; }
.offcanvas-title { font-family: var(--serif); font-size: 20px; color: var(--plum); }
.offcanvas-body { padding: 12px; }
.nav-close {
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  border-radius: 4px;
  padding: 6px 10px;
  line-height: 1;
}
.nav-close:hover { background: var(--ink); color: var(--ivory); }
@keyframes fadeup {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .sidenav { width: 196px; padding: 22px 12px; }
  .page-wrap { margin-left: 196px; }
  .brand { font-size: 18px; }
  h1 { font-size: 48px; }
}
@media (max-width: 991.98px) {
  .sidenav { display: none; }
  .page-wrap { margin-left: 0; }
  .topbar {
    display: flex;
    position: sticky;
    top: 0;
    z-index: 50;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--ivory);
    border-bottom: 1px solid var(--line);
    padding: 12px 16px;
  }
  .topbar .brand { font-size: 16px; }
  .hero-grid, .path-grid, .scene-rail, .quote-wrap, .device-grid, .compare, .stat-row { grid-template-columns: 1fr; }
  .scene-card, .scene-card:nth-child(2), .scene-card:nth-child(3), .quote:last-child { margin-top: 0; padding-bottom: 22px; }
  .compare article + article { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .hero-mark { min-height: 0; }
  .hero-mark strong { font-size: 92px; }
  .inner { padding: 0 20px; }
}
@media (max-width: 767.98px) {
  body { font-size: 16px; }
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  h3, .accordion-button { font-size: 20px; }
  .section { padding: 64px 0; }
  .pain-row, .step, .news-item, .entry-row, .metric-grid { grid-template-columns: 1fr; }
  .entry-row .btn-line { justify-self: start; }
  .stat-num { font-size: 48px; }
  .quote p { font-size: 22px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-actions, .hero-actions a { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .scene-card:hover, .btn-solid:active, .btn-line:active { transform: none !important; }
}

/* roulang page: category2 */
:root {
  --ink: #211814;
  --plum: #4A2433;
  --rose: #B5525A;
  --rose-deep: #8C3A42;
  --ivory: #F6F1EA;
  --stone: #EBE3D8;
  --sand: #D9CBBA;
  --sage: #6E7F68;
  --line: rgba(33,24,20,.12);
  --shadow: 0 10px 28px rgba(74,36,51,.08);
  --shadow-deep: 0 16px 36px rgba(74,36,51,.14);
  --muted: #5E564F;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --bs-primary: #4A2433;
  --bs-link-color: #4A2433;
  --bs-link-hover-color: #8C3A42;
  --bs-body-color: #211814;
  --bs-body-bg: #F6F1EA;
  --bs-border-radius: 4px;
  --bs-accordion-btn-focus-box-shadow: none;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-active-color: #211814;
  --bs-accordion-bg: transparent;
  --bs-accordion-border-color: transparent;
  --bs-accordion-btn-color: #211814;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--ivory);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--plum); text-decoration: none; }
button, input { font-family: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.2; color: var(--ink); }
h1 { font-size: 56px; margin-bottom: 14px; }
h2 { font-size: 40px; margin-bottom: 18px; }
h3 { font-size: 22px; margin-bottom: 0; }
p { margin-bottom: 0; }
.muted { color: var(--muted); }
.prose { max-width: 42em; }
.inner { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.link-grow {
  color: var(--plum);
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size .2s ease, color .2s ease;
}
.link-grow:hover { background-size: 100% 1px; color: var(--rose-deep); }
.btn-solid, .btn-line, .btn-ivory, .btn-menu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 4px;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-solid { background: var(--plum); color: var(--ivory); border: 1px solid var(--plum); }
.btn-solid:hover { background: #3A1C28; color: var(--ivory); border-color: #3A1C28; }
.btn-line { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--ivory); }
.btn-ivory { background: var(--ivory); color: var(--plum); border: 1px solid var(--ivory); }
.btn-ivory:hover { background: #fff; color: var(--plum); }
.btn-solid:active, .btn-line:active, .btn-ivory:active, .btn-menu:active { transform: translateY(1px); }
.btn-menu { background: transparent; color: var(--ink); border: 1px solid var(--ink); min-height: 40px; padding: 8px 12px; }
.btn-menu:hover { background: var(--ink); color: var(--ivory); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }
.badge-soft {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--ivory);
  color: var(--plum);
  font-size: 13px;
  line-height: 1.4;
  padding: 3px 10px;
  white-space: nowrap;
}
.sidenav {
  position: fixed;
  inset: 0 auto 0 0;
  width: 232px;
  background: var(--ivory);
  border-right: 1px solid var(--line);
  padding: 28px 18px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--plum);
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.25;
  font-weight: 600;
}
.brand:hover { color: var(--rose-deep); }
.brand-name { display: block; max-width: 7.2em; }
.brand-arc {
  width: 16px;
  height: 34px;
  flex: none;
  border: 1px solid var(--rose);
  border-left: 0;
  border-radius: 0 18px 18px 0;
}
.side-links a {
  display: block;
  color: var(--ink);
  padding: 10px 12px;
  border-radius: 4px;
  transition: background-color .2s ease, color .2s ease;
}
.side-links a:hover { background: var(--stone); color: var(--ink); }
.side-links a.is-current {
  box-shadow: inset 2px 0 0 var(--rose);
  font-weight: 650;
  background: rgba(181,82,90,.06);
}
.topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  z-index: 50;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 16px;
  background: var(--ivory);
  border-bottom: 1px solid var(--line);
}
.brand-short {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.25;
  color: var(--plum);
  font-weight: 600;
}
.brand-short:hover { color: var(--rose-deep); }
.offcanvas {
  background: var(--ivory);
  color: var(--ink);
  width: min(300px, 88vw);
  border-right: 1px solid var(--line);
}
.offcanvas-header { padding: 22px 18px 8px; }
.offcanvas-title { font-family: var(--serif); font-size: 20px; color: var(--plum); }
.offcanvas-body { padding: 8px 18px 28px; }
.btn-close { opacity: .7; }
.btn-close:focus { box-shadow: 0 0 0 2px var(--rose); }
.page-shell { margin-left: 232px; min-height: 100vh; }
.info-line { border-bottom: 1px solid var(--line); }
.info-line .inner {
  display: flex;
  gap: 18px;
  padding: 10px 0;
  color: var(--muted);
  font-size: 13px;
}
.section { padding: 100px 0; }
.section-stone { background: var(--stone); }
.section-ivory { background: var(--ivory); }
.pagehead { padding: 42px 0 88px; }
.crumb { margin: 0 0 18px; font-size: 14px; color: var(--muted); }
.crumb a { color: var(--plum); }
.lead-line { font-size: 18px; max-width: 42em; }
.axis { list-style: none; margin: 8px 0 0; padding: 0; position: relative; }
.axis::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: rgba(33,24,20,.2);
}
.axis-item { position: relative; padding: 0 0 32px 40px; }
.axis-item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--stone);
  border: 2px solid var(--rose);
}
.axis-time {
  display: block;
  color: var(--rose-deep);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}
.axis-item h3 { margin: 8px 0 6px; }
.axis-item h3 a { color: var(--ink); }
.axis-item h3 a:hover { color: var(--rose-deep); }
.axis-item p { color: var(--muted); max-width: 40em; }
.axis-end {
  margin-top: 4px;
  padding-top: 8px;
  max-width: 40em;
  color: var(--ink);
}
.more-row { margin-top: 8px; }
.batch-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.batch-row p { color: var(--muted); max-width: 40em; }
.scale-track {
  display: flex;
  height: 14px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--sand);
  margin-top: 8px;
}
.scale-track i { display: block; height: 100%; }
.scale-track i:nth-child(1) { width: 46%; background: var(--plum); }
.scale-track i:nth-child(2) { width: 38%; background: var(--rose); }
.scale-track i:nth-child(3) { width: 16%; background: var(--sage); }
.scale-meta {
  display: grid;
  grid-template-columns: 46% 38% 16%;
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}
.scale-meta b {
  display: block;
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.2;
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.scale-note { margin-top: 18px; color: var(--muted); max-width: 42em; }
.who-list p {
  margin: 0;
  padding: 22px 0 22px 18px;
  border-top: 1px solid var(--line);
  border-left: 2px solid var(--rose);
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.45;
  max-width: 18em;
}
.who-list p + p { margin-top: 18px; }
.lie-grid {
  display: grid;
  grid-template-columns: minmax(0, 42em) 220px;
  gap: 48px;
  align-items: end;
}
.ph-phone {
  width: 200px;
  aspect-ratio: 3 / 4;
  background: var(--plum);
  color: var(--ivory);
  border-radius: 4px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: var(--shadow);
}
.ph-phone .badge-soft { align-self: flex-start; margin-bottom: auto; background: transparent; color: var(--sand); border-color: rgba(246,241,234,.35); }
.ph-phone strong { font-family: var(--serif); font-size: 26px; font-weight: 600; line-height: 1.3; }
.ph-phone em { font-style: normal; color: var(--sand); font-size: 14px; margin-top: 8px; }
.faq .accordion-item {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
}
.faq .accordion-item:last-child { border-bottom: 1px solid var(--line); }
.faq .accordion-header { margin: 0; }
.faq .accordion-button {
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  padding: 18px 0;
  box-shadow: none;
  gap: 16px;
}
.faq .accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--ink);
  box-shadow: none;
}
.faq .accordion-button:focus { box-shadow: none; border-color: transparent; }
.faq .accordion-button::after { margin-left: auto; }
.faq .accordion-body { padding: 0 0 18px; color: var(--muted); max-width: 42em; }
.cta-band { background: var(--plum); color: var(--ivory); padding: 56px 0; }
.cta-band h2 { color: var(--ivory); margin-bottom: 10px; }
.cta-band p { color: rgba(246,241,234,.86); margin-bottom: 18px; }
.footer { background: var(--ink); color: var(--ivory); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 28px 0;
}
.footer strong { font-family: var(--serif); font-size: 18px; font-weight: 600; }
.footer p { margin: 4px 0 0; color: #E7DDD2; font-size: 14px; }
.footer .link-grow { color: var(--ivory); }
.footer .link-grow:hover { color: var(--sand); }
@media (max-width: 1199.98px) and (min-width: 992px) {
  .sidenav { width: 196px; padding: 22px 12px; }
  .page-shell { margin-left: 196px; }
  .brand { font-size: 18px; }
  h1 { font-size: 48px; }
  h2 { font-size: 34px; }
}
@media (max-width: 991.98px) {
  .sidenav { display: none; }
  .topbar { display: flex; }
  .page-shell { margin-left: 0; padding-top: 60px; }
  .lie-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 767.98px) {
  body { font-size: 16px; }
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  h3 { font-size: 20px; }
  .section { padding: 64px 0; }
  .pagehead { padding: 28px 0 56px; }
  .inner { width: min(1120px, calc(100% - 32px)); }
  .batch-row { grid-template-columns: 1fr; gap: 4px; }
  .scale-meta { display: flex; flex-wrap: wrap; gap: 14px 22px; }
  .who-list p { font-size: 22px; }
  .faq .accordion-button { font-size: 18px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .ph-phone { width: min(200px, 70%); }
}
@media (max-width: 520px) {
  .info-line .inner { flex-wrap: wrap; gap: 4px 14px; }
  .brand-short { font-size: 15px; max-width: 11em; }
  .cta-band { padding: 48px 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* roulang page: category1 */
:root {
 --ink: #211814;
 --plum: #4A2433;
 --rose: #B5525A;
 --rose-deep: #8C3A42;
 --ivory: #F6F1EA;
 --stone: #EBE3D8;
 --sand: #D9CBBA;
 --sage: #6E7F68;
 --line: rgba(33,24,20,.12);
 --shadow: 0 10px 28px rgba(74,36,51,.08);
 --shadow-deep: 0 16px 36px rgba(74,36,51,.14);
 --muted: #5E564F;
 --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
 --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
 --bs-primary: #4A2433;
 --bs-link-color: #4A2433;
 --bs-link-hover-color: #8C3A42;
 --bs-body-color: #211814;
 --bs-body-bg: #F6F1EA;
 --bs-border-radius: 4px;
 --bs-accordion-btn-focus-box-shadow: none;
 --bs-accordion-active-bg: transparent;
 --bs-accordion-active-color: #211814;
 --bs-accordion-border-color: transparent;
 --bs-accordion-btn-color: #211814;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--sans);
 font-size: 17px;
 line-height: 1.8;
 color: var(--ink);
 background: var(--ivory);
 text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--plum); text-decoration: none; }
button, input { font-family: inherit; }
p { margin: 0 0 12px; }
::selection { background: rgba(181,82,90,.22); color: var(--ink); }
:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }
.muted { color: var(--muted); }
.nums { font-variant-numeric: tabular-nums; }
.link-grow {
 color: var(--plum);
 background-image: linear-gradient(currentColor, currentColor);
 background-repeat: no-repeat;
 background-position: 0 100%;
 background-size: 0 1px;
 transition: background-size .2s ease, color .2s ease;
}
.link-grow:hover { background-size: 100% 1px; color: var(--rose-deep); }
.btn-solid, .btn-line, .tier-btn, .text-close {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 12px 18px;
 border-radius: 4px;
 font-size: 15px;
 line-height: 1;
 cursor: pointer;
 transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-solid { background: var(--plum); color: var(--ivory); border: 1px solid var(--plum); }
.btn-solid:hover { background: #3A1C28; color: var(--ivory); border-color: #3A1C28; }
.btn-solid:active, .btn-line:active, .tier-btn:active { transform: translateY(1px); }
.btn-line { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--ivory); }
.badge-soft, .tier-btn {
 display: inline-flex;
 align-items: center;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--ivory);
 color: var(--plum);
 font-size: 13px;
 line-height: 1.4;
 padding: 6px 12px;
 white-space: nowrap;
 min-height: 32px;
}
.tier-btn { cursor: pointer; }
.tier-btn:hover { border-color: var(--rose); color: var(--rose-deep); }
.tier-btn.is-on { background: var(--plum); color: var(--ivory); border-color: var(--plum); }
.sidenav {
 position: fixed;
 inset: 0 auto 0 0;
 width: 232px;
 background: var(--ivory);
 border-right: 1px solid var(--line);
 padding: 28px 18px;
 z-index: 40;
 display: flex;
 flex-direction: column;
 gap: 28px;
}
.brand {
 display: flex;
 gap: 10px;
 align-items: center;
 color: var(--plum);
 font-family: var(--serif);
 font-size: 22px;
 line-height: 1.25;
 font-weight: 600;
}
.brand:hover { color: var(--rose-deep); }
.brand span { display: block; max-width: 7em; }
.brand-mark {
 width: 28px;
 height: 28px;
 flex: none;
 border: 1px solid var(--rose);
 border-left-color: transparent;
 border-bottom-color: transparent;
 border-radius: 50%;
 transform: rotate(24deg);
}
.side-links a {
 display: block;
 color: var(--ink);
 padding: 10px 12px;
 border-radius: 4px;
 transition: background-color .2s ease, color .2s ease;
}
.side-links a:hover { background: var(--stone); color: var(--ink); }
.side-links a.is-current {
 box-shadow: inset 2px 0 0 var(--rose);
 font-weight: 650;
 background: rgba(181,82,90,.06);
}
.topbar {
 display: none;
 position: fixed;
 top: 0;
 left: 0;
 right: 0;
 height: 64px;
 padding: 0 16px;
 background: var(--ivory);
 border-bottom: 1px solid var(--line);
 z-index: 50;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
}
.topbar-brand {
 font-family: var(--serif);
 font-size: 18px;
 line-height: 1.25;
 font-weight: 600;
 color: var(--plum);
}
.topbar-brand:hover { color: var(--rose-deep); }
.nav-toggle { min-height: 36px; padding: 8px 12px; }
.offcanvas {
 background: var(--ivory);
 color: var(--ink);
 width: min(320px, 88vw);
 border-right: 1px solid var(--line);
}
.offcanvas-header { padding: 22px 18px 8px; align-items: flex-start; }
.drawer-brand {
 font-family: var(--serif);
 font-size: 22px;
 line-height: 1.3;
 font-weight: 600;
 color: var(--plum);
 max-width: 8em;
}
.offcanvas-body { padding: 8px 18px 28px; }
.text-close {
 min-height: 36px;
 padding: 6px 12px;
 background: transparent;
 color: var(--ink);
 border: 1px solid var(--ink);
}
.text-close:hover { background: var(--ink); color: var(--ivory); }
.shell { margin-left: 232px; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
.inner { width: min(1120px, 100%); margin: 0 auto; padding: 0 32px; }
.section { padding: 100px 0; background: var(--ivory); }
.section-stone { background: var(--stone); }
.measure { max-width: 42em; }
h1, h2, h3 {
 font-family: var(--serif);
 font-weight: 600;
 line-height: 1.2;
 letter-spacing: 0;
 color: var(--ink);
}
h1 { font-size: 56px; margin: 0 0 14px; }
h2 { font-size: 40px; margin: 0 0 16px; }
h3 { font-size: 22px; margin: 0; }
.lead { font-size: 18px; margin: 0; max-width: 42em; }
.pathline {
 margin: 0 0 22px;
 font-size: 13px;
 color: var(--muted);
 display: flex;
 flex-wrap: wrap;
 gap: 8px 10px;
 align-items: center;
}
.path-gap { color: var(--rose-deep); margin-left: 8px; }
.intro { color: var(--muted); max-width: 42em; margin-bottom: 8px; }
.hd-list { margin-top: 8px; }
.hd-row {
 display: grid;
 grid-template-columns: 96px minmax(0, 1fr);
 gap: 18px 22px;
 align-items: start;
 padding: 22px 0;
 border-top: 1px solid var(--line);
 transition: background-color .2s ease;
}
.hd-row:hover { background: rgba(181,82,90,.05); }
.hd-row[hidden] { display: none !important; }
.hd-row .badge-soft { margin-top: 4px; }
.hd-row p { margin: 6px 0 0; }
.sub { color: var(--muted); font-size: 15px; }
.more-row { padding: 8px 0 4px; margin: 0; }
.tier-bar {
 display: flex;
 flex-wrap: wrap;
 gap: 10px;
 margin-top: 8px;
}
.cmp {
 padding: 26px 0 26px 18px;
 border-top: 1px solid var(--line);
 border-left: 2px solid var(--sand);
}
.cmp.is-hd { border-left-color: var(--rose); }
.cmp h3 { margin-bottom: 8px; }
.cmp p { margin: 0; max-width: 42em; color: var(--muted); }
.scene-layout {
 display: grid;
 grid-template-columns: minmax(0, 42em) minmax(260px, 1fr);
 gap: 40px;
 align-items: center;
}
.scene-card {
 background: var(--ivory);
 border: 1px solid var(--line);
 border-radius: 4px;
 box-shadow: var(--shadow);
 padding: 12px;
 transition: transform .2s ease, box-shadow .2s ease;
}
.scene-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-deep); }
.frame-wide {
 aspect-ratio: 16/9;
 background: var(--plum);
 border-radius: 4px;
 position: relative;
 overflow: hidden;
}
.frame-wide::after {
 content: "";
 position: absolute;
 left: 8%;
 right: 8%;
 top: 18%;
 bottom: 18%;
 border: 1px solid rgba(246,241,234,.35);
}
.frame-cap { margin: 10px 4px 2px; font-size: 14px; color: var(--muted); }
.dash-list { list-style: none; padding: 0; margin: 8px 0 0; max-width: 42em; }
.dash-list li {
 display: grid;
 grid-template-columns: 7em minmax(0, 1fr);
 gap: 12px;
 padding: 16px 0;
 border-top: 1px solid var(--line);
}
.dash-list li span { color: var(--plum); font-family: var(--serif); }
.dash-list li span::before { content: "— "; color: var(--rose-deep); }
.accordion { --bs-accordion-bg: transparent; --bs-accordion-border-width: 0; }
.accordion-item { background: transparent; border: 0; border-top: 1px solid var(--line); border-radius: 0; }
.accordion-item:last-child { border-bottom: 1px solid var(--line); }
.accordion-button {
 background: transparent;
 color: var(--ink);
 font-family: var(--serif);
 font-size: 22px;
 line-height: 1.4;
 padding: 18px 0;
 box-shadow: none;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--ink); box-shadow: none; }
.accordion-button:focus { box-shadow: none; }
.accordion-button::after {
 background-image: none;
 width: 8px;
 height: 8px;
 border-right: 1.5px solid var(--ink);
 border-bottom: 1.5px solid var(--ink);
 transform: rotate(45deg);
 flex-shrink: 0;
}
.accordion-button:not(.collapsed)::after { transform: rotate(-135deg); }
.accordion-body { padding: 0 0 18px; color: var(--muted); max-width: 42em; }
.rel-row {
 display: grid;
 grid-template-columns: 72px minmax(0, 1fr);
 gap: 16px;
 padding: 20px 0;
 border-top: 1px solid var(--line);
 align-items: start;
}
.rel-time { color: var(--rose-deep); font-size: 14px; padding-top: 4px; }
.rel-row p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.footer {
 background: var(--ink);
 color: var(--ivory);
 padding: 36px 0;
 margin-top: auto;
}
.footer strong {
 display: block;
 font-family: var(--serif);
 font-size: 20px;
 font-weight: 600;
 line-height: 1.3;
}
.footer p { margin: 6px 0 0; color: rgba(246,241,234,.78); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; }
.footer a { color: var(--ivory); }
.footer .link-grow { color: var(--ivory); }
.footer .link-grow:hover { color: var(--sand); }
@media (max-width: 1199.98px) {
 .sidenav { width: 200px; padding: 22px 14px; }
 .shell { margin-left: 200px; }
 .brand { font-size: 20px; }
 .section { padding: 88px 0; }
 h1 { font-size: 48px; }
}
@media (max-width: 991.98px) {
 .sidenav { display: none; }
 .topbar { display: flex; }
 .shell { margin-left: 0; padding-top: 64px; }
 .scene-layout { grid-template-columns: 1fr; }
}
@media (max-width: 767.98px) {
 .inner { padding: 0 18px; }
 .section { padding: 64px 0; }
 h1 { font-size: 34px; }
 h2 { font-size: 28px; }
 h3, .accordion-button { font-size: 20px; }
 .hd-row, .dash-list li, .rel-row { grid-template-columns: 1fr; gap: 8px; }
 .footer-inner { flex-direction: column; align-items: flex-start; }
 .lead { font-size: 17px; }
}
@media (max-width: 519.98px) {
 .topbar-brand { font-size: 16px; }
 .pathline { font-size: 12px; }
 .tier-btn { padding: 6px 10px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after {
  animation: none !important;
  transition: none !important;
 }
 .scene-card: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}