/* roulang page: index */
:root {
  --plum: #6B2D5B;
  --plum-hover: #5C264E;
  --plum-active: #4A1E3F;
  --amber: #C47B4A;
  --amber-hover: #B06C3E;
  --amber-active: #945A32;
  --paper: #F4EFE6;
  --paper-light: #FBF8F3;
  --note: #F3D7C4;
  --ink: #1C1917;
  --muted: #5C514C;
  --line: #3F2E2A;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow: 0 1px 2px rgba(63, 46, 42, 0.08);
  --space: 84px;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.02rem;
  line-height: 1.85;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--plum); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
button, input { font-family: inherit; }
p { margin: 0 0 1.5em; }
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.28;
  color: var(--ink);
  margin: 0 0 0.55em;
}
h1 { font-size: clamp(1.85rem, 3.5vw, 2.7rem); max-width: 14em; }
h2 { font-size: clamp(1.45rem, 2.4vw, 2rem); }
h3 { font-size: 1.16rem; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper-light);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--ink);
  flex: 1 1 auto;
}
.brand:hover { text-decoration: none; color: var(--plum); }
.brand-mark {
  flex: 0 0 auto;
  background: var(--plum);
  color: var(--paper-light);
  border-radius: var(--radius-btn);
  padding: 4px 8px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.brand-text {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.35;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 1 320px;
}
.nav-search input, .search-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--plum);
  background: var(--paper-light);
  color: var(--ink);
  border-radius: var(--radius-btn);
  padding: 0 12px;
  box-shadow: none;
  margin: 0;
}
.nav-search input:focus, .search-form input:focus {
  border-color: var(--plum);
  box-shadow: 0 0 0 3px rgba(196, 123, 74, 0.45);
  outline: none;
}
.nav-cta { flex: 0 0 auto; }
.icon-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--plum);
  border-radius: var(--radius-btn);
  background: var(--plum);
  color: var(--paper-light);
}
.icon-btn:hover { background: var(--plum-hover); text-decoration: none; color: var(--paper-light); }
.channel-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 0 12px;
}
.channel-row { display: flex; gap: 8px; min-width: max-content; }
.channel-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-btn);
  background: transparent;
  color: var(--ink);
  white-space: nowrap;
}
.channel-link:hover { background: var(--note); text-decoration: none; color: var(--plum); }
.channel-link.is-active, .channel-link.is-active:hover {
  background: var(--plum);
  border-color: var(--plum);
  color: var(--paper-light);
  text-decoration: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-solid { background: var(--plum); color: var(--paper-light); }
.btn-solid:hover { background: var(--plum-hover); color: var(--paper-light); }
.btn-solid:active { background: var(--plum-active); color: var(--paper-light); }
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-hover); color: var(--ink); }
.btn-amber:active { background: var(--amber-active); color: var(--paper-light); }
.btn-line { background: transparent; border-color: var(--amber); color: var(--plum); }
.btn-line:hover { background: var(--amber); color: var(--ink); }
.btn-line:active { background: var(--amber-active); color: var(--paper-light); }
.hero { background: var(--paper); padding: 0; }
.hero-slant {
  position: relative;
  background: var(--plum);
  color: var(--paper-light);
  padding: 76px 0 108px;
  overflow: hidden;
}
.hero-slant::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 52px;
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}
.hero-slant h1, .hero-slant .hero-line, .hero-slant .eyebrow { color: var(--paper-light); }
.hero-watermark {
  position: absolute;
  right: 6%;
  top: 18px;
  font-family: var(--font-serif);
  font-size: 7.5rem;
  line-height: 1;
  color: rgba(244, 239, 230, 0.12);
  pointer-events: none;
}
.eyebrow, .sec-kicker {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin: 0 0 10px;
}
.hero-line { font-size: 1.12rem; margin: 0 0 22px; max-width: 28em; line-height: 1.7; }
.hero-stage { position: relative; }
.still { margin: 0; background: var(--line); }
.still img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; height: auto; }
.still figcaption {
  padding: 10px 16px 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.hero-card {
  position: relative;
  margin-top: -72px;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px 12px;
}
.section { padding: var(--space) 0; }
.section-paper { background: var(--paper); }
.section-light { background: var(--paper-light); }
.section-note { background: var(--note); }
.section-plum { background: var(--plum); color: var(--paper-light); }
.section-plum h2, .section-plum p { color: var(--paper-light); }
.sec-head { margin-bottom: 28px; max-width: 46em; }
.sec-desc { color: var(--ink); margin-bottom: 0; }
.section-plum .sec-desc { color: var(--paper-light); }
.pain-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--paper-light);
}
.pain-side { padding: 20px 22px 8px; min-height: 100%; }
.pain-bad { background: var(--paper-light); }
.pain-fix { background: var(--note); }
.pain-label {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-weight: 700;
}
.path-node, .step-item, .scene-card, .stat-item, .sticky-note, .entry-card, .metric, .search-panel, .contrast-panel {
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.path-rail { position: relative; }
.path-node {
  padding: 18px 16px 8px;
  min-height: 100%;
  position: relative;
}
.path-node::before {
  content: "";
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--amber);
  margin-bottom: 12px;
}
.path-no {
  font-family: var(--font-serif);
  color: var(--plum);
  margin: 0 0 4px;
}
.step-list { display: flex; flex-direction: column; gap: 14px; }
.step-item { padding: 18px 20px 6px; }
.step-item:nth-child(2) { margin-left: 6%; }
.step-item:nth-child(3) { margin-left: 12%; }
.step-item:nth-child(4) { margin-left: 18%; }
.step-no { color: var(--amber); font-family: var(--font-serif); margin: 0; }
.scene-card { height: 100%; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.scene-card:hover { transform: translateY(-1px); box-shadow: 0 2px 4px rgba(63, 46, 42, 0.12); }
.scene-card img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.scene-body { padding: 16px 16px 8px; }
.card-link { font-weight: 700; }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 8px;
  border-radius: var(--radius-btn);
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid transparent;
  margin-bottom: 8px;
}
.badge-scene { background: var(--plum); color: var(--paper-light); }
.badge-update { background: var(--amber); color: var(--ink); }
.badge-back { background: transparent; border-color: var(--plum); color: var(--plum); }
.stat-item { padding: 22px 18px 10px; height: 100%; }
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1;
  color: var(--plum);
  margin: 0 0 8px;
}
.stat-label { font-weight: 700; margin: 0 0 8px; }
.stat-note, .card-text, .news-item p, .sticky-note p, .entry-card p, .metric p { color: var(--muted); }
.note-grid .sticky-note { padding: 18px 16px 8px; height: 100%; background: var(--note); }
.sticky-note:nth-child(1) { transform: rotate(-0.4deg); }
.sticky-note:nth-child(2) { transform: rotate(0.5deg); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: var(--radius-btn);
  color: var(--ink);
}
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 16px 18px;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.news-item:hover { transform: translateY(-1px); }
.news-date { font-family: var(--font-serif); color: var(--plum); margin: 0; }
.news-more { margin: 18px 0 0; }
.metric { padding: 16px 16px 4px; height: 100%; background: var(--paper); }
.metric strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--plum);
  line-height: 1.2;
}
.entry-card {
  display: block;
  height: 100%;
  padding: 22px 20px 12px;
  color: var(--ink);
  transition: transform 0.2s ease, background 0.2s ease;
}
.entry-card:hover { transform: translateY(-1px); background: var(--note); text-decoration: none; color: var(--ink); }
.entry-wide { background: var(--paper-light); }
.entry-narrow { background: #F7E6D8; }
.search-layout .search-panel, .search-layout .contrast-panel { padding: 20px 20px 8px; height: 100%; }
.search-form label { display: block; font-weight: 700; margin-bottom: 8px; }
.search-form .btn { margin-top: 12px; }
.contrast-list { margin: 0; padding: 0; list-style: none; }
.contrast-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(63, 46, 42, 0.2);
}
.contrast-list li:last-child { border-bottom: 0; }
.note-faq .accordion { background: transparent; border: 0; margin: 0; }
.note-faq .accordion-item {
  background: var(--note);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.note-faq .accordion-title {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  color: var(--ink);
  background: transparent;
  border: 0;
  padding: 16px 44px 16px 18px;
  line-height: 1.5;
}
.note-faq .accordion-title:hover, .note-faq .accordion-title:focus {
  color: var(--plum);
  background: transparent;
}
.note-faq .accordion-title::before { color: var(--amber); }
.note-faq .accordion-content { border: 0; background: var(--paper-light); color: var(--ink); padding: 4px 18px 8px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site-footer {
  background: var(--paper-light);
  border-top: 1px solid var(--line);
  padding: 48px 0 28px;
}
.foot-brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 8px;
}
.foot-links { list-style: none; margin: 0; padding: 0; }
.foot-links a { display: inline-flex; min-height: 44px; align-items: center; }
.fine { color: var(--muted); font-size: 0.92rem; }
.show-for-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.no-js .accordion-content { display: block !important; }
@media (max-width: 1024px) {
  .hero-watermark { font-size: 5rem; }
  .step-item:nth-child(2), .step-item:nth-child(3), .step-item:nth-child(4) { margin-left: 4%; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .nav-search, .nav-cta { display: none; }
  .icon-btn { display: inline-flex; }
  .hero-slant { padding: 48px 0 80px; }
  .hero-card { margin-top: -40px; padding: 20px 16px 4px; }
  .pain-row, .news-item { grid-template-columns: 1fr; }
  .step-item, .step-item:nth-child(2), .step-item:nth-child(3), .step-item:nth-child(4) { margin-left: 0; }
  .sticky-note:nth-child(1), .sticky-note:nth-child(2) { transform: none; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 24px); }
  .brand-text { font-size: 0.95rem; }
  .hero-watermark { display: none; }
  .stat-num { font-size: 2.4rem; }
  h1 { font-size: 1.7rem; }
}

/* roulang page: category2 */
:root {
 --plum: #6B2D5B;
 --plum-hover: #5C264E;
 --plum-active: #4A1E3F;
 --amber: #C47B4A;
 --amber-hover: #B06C3E;
 --amber-active: #945A32;
 --paper: #F4EFE6;
 --paper-light: #FBF8F3;
 --note: #F3D7C4;
 --ink: #1C1917;
 --muted: #5C514C;
 --line: #3F2E2A;
 --radius: 12px;
 --radius-btn: 8px;
 --shadow: 0 1px 2px rgba(63, 46, 42, 0.08);
 --space: 84px;
 --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
 --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
/* roulang page: av */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--paper);
 color: var(--ink);
 font-family: var(--font-sans);
 font-size: 1.02rem;
 line-height: 1.85;
}
img { max-width: 100%; display: block; border: 0; height: auto; }
a { color: var(--plum); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible {
 outline: 2px solid var(--amber);
 outline-offset: 3px;
}
button, input { font-family: inherit; }
p { margin: 0 0 1.05em; }
h1, h2, h3 {
 font-family: var(--font-serif);
 font-weight: 700;
 line-height: 1.35;
 color: var(--ink);
 margin: 0 0 0.55em;
}
h1 { font-size: clamp(1.85rem, 3vw, 2.55rem); max-width: 16em; }
h2 { font-size: clamp(1.45rem, 2.3vw, 1.9rem); }
h3 { font-size: 1.18rem; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: var(--paper-light);
 border-bottom: 1px solid var(--line);
}
.nav-row {
 display: flex;
 align-items: center;
 gap: 16px;
 min-height: 72px;
}
.brand {
 display: flex;
 align-items: center;
 gap: 10px;
 min-height: 44px;
 color: var(--ink);
 flex: 1 1 auto;
}
.brand:hover { text-decoration: none; color: var(--plum); }
.brand-mark {
 flex: 0 0 auto;
 background: var(--plum);
 color: var(--paper-light);
 border-radius: var(--radius-btn);
 padding: 4px 8px;
 font-size: 0.75rem;
 letter-spacing: 0.08em;
}
.brand-text {
 font-family: var(--font-serif);
 font-weight: 700;
 font-size: 1.08rem;
 line-height: 1.35;
}
.nav-search {
 display: flex;
 align-items: center;
 gap: 8px;
 flex: 0 1 320px;
}
.nav-search input, .search-form input {
 width: 100%;
 min-height: 44px;
 border: 1px solid var(--plum);
 background: var(--paper-light);
 color: var(--ink);
 border-radius: var(--radius-btn);
 padding: 0 12px;
 box-shadow: none;
 margin: 0;
}
.nav-search input:focus, .search-form input:focus {
 border-color: var(--plum);
 box-shadow: 0 0 0 3px rgba(196, 123, 74, 0.45);
 outline: none;
}
.nav-cta { flex: 0 0 auto; }
.icon-btn {
 display: none;
 width: 44px;
 height: 44px;
 align-items: center;
 justify-content: center;
 border: 1px solid var(--plum);
 border-radius: var(--radius-btn);
 background: var(--plum);
 color: var(--paper-light);
}
.icon-btn:hover { background: var(--plum-hover); text-decoration: none; color: var(--paper-light); }
.channel-scroll {
 overflow-x: auto;
 padding: 0 0 12px;
 -webkit-overflow-scrolling: touch;
}
.channel-row { display: flex; gap: 8px; min-width: max-content; }
.channel-link {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--line);
 color: var(--ink);
 background: transparent;
 white-space: nowrap;
}
.channel-link:hover { text-decoration: none; background: var(--note); color: var(--plum); }
.channel-link.is-active, .channel-link.is-active:hover {
 background: var(--plum);
 border-color: var(--plum);
 color: var(--paper-light);
}
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--radius-btn);
 border: 1px solid transparent;
 font-weight: 700;
 line-height: 1.2;
 cursor: pointer;
 text-decoration: none;
 transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-solid { background: var(--plum); color: var(--paper-light); }
.btn-solid:hover { background: var(--plum-hover); color: var(--paper-light); }
.btn-solid:active { background: var(--plum-active); color: var(--paper-light); }
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-hover); color: var(--ink); }
.btn-amber:active { background: var(--amber-active); color: var(--paper-light); }
.btn-line { background: transparent; border-color: var(--amber); color: var(--plum); }
.btn-line:hover { background: var(--amber); color: var(--ink); }
.btn-line:active { background: var(--amber-active); color: var(--paper-light); }
.btn-ghost {
 background: transparent;
 border-color: var(--paper-light);
 color: var(--paper-light);
}
.btn-ghost:hover { background: var(--paper-light); color: var(--plum); }
.btn-ghost:active { background: var(--note); color: var(--plum-active); }
.sec-kicker {
 font-family: var(--font-sans);
 font-size: 0.82rem;
 letter-spacing: 0.14em;
 color: var(--amber);
 margin: 0 0 10px;
}
.section { padding: var(--space) 0; }
.section-paper { background: var(--paper); }
.section-light { background: var(--paper-light); }
.section-note { background: var(--note); }
.section-plum { background: var(--plum); color: var(--paper-light); }
.section-plum h2, .section-plum p, .section-plum .sec-desc { color: var(--paper-light); }
.lead, .sec-desc { max-width: 40em; color: var(--muted); font-size: 1.05rem; }
.section-plum .sec-desc { color: var(--paper-light); }
.range-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.range-pill {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--paper-light);
 color: var(--ink);
 font-weight: 700;
}
.range-pill:hover { background: var(--plum); color: var(--paper-light); text-decoration: none; }
.range-pill:active { background: var(--plum-active); color: var(--paper-light); }
.timeline { position: relative; margin-top: 8px; }
.timeline::before {
 content: "";
 position: absolute;
 left: 132px;
 top: 8px;
 bottom: 8px;
 width: 1px;
 background: var(--line);
}
.tl-item {
 display: grid;
 grid-template-columns: 120px 1fr;
 gap: 28px;
 margin: 0 0 18px;
 position: relative;
}
.tl-date {
 font-family: var(--font-serif);
 font-weight: 700;
 padding-top: 16px;
 color: var(--plum);
}
.tl-card {
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 16px 18px 12px;
}
.section-light .tl-card { background: var(--paper); }
.tl-card h3 { margin-bottom: 6px; }
.tl-card p { color: var(--ink); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 10px;
 border-radius: 999px;
 font-size: 0.82rem;
 font-weight: 700;
 border: 1px solid var(--line);
}
.badge-update { background: var(--plum); color: var(--paper-light); border-color: var(--plum); }
.badge-scene { background: var(--note); color: var(--ink); }
.badge-back { background: var(--amber); color: var(--ink); border-color: var(--amber); }
.text-link { font-weight: 700; }
.compare-grid { margin-top: 8px; }
.compare-card, .gap-card, .metric, .more-panel, .close-panel {
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.compare-card { height: 100%; overflow: hidden; }
.compare-card img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.compare-body { padding: 18px 18px 8px; }
.compare-card:nth-child(1) .compare-body { background: var(--paper-light); }
.gap-list { list-style: none; margin: 12px 0 0; padding: 0; }
.gap-list li {
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-left: 6px solid var(--amber);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 14px 16px;
 margin: 0 0 12px;
}
.more-panel { padding: 22px 22px 16px; max-width: 640px; }
.metric-strip { margin-top: 8px; }
.metric { padding: 18px 16px 10px; height: 100%; }
.metric strong {
 display: block;
 font-family: var(--font-serif);
 font-size: clamp(2rem, 4vw, 3rem);
 line-height: 1.1;
 color: var(--plum);
}
.metric span { color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site-footer {
 background: var(--ink);
 color: var(--paper);
 padding: 48px 0 28px;
}
.site-footer a { color: var(--note); }
.site-footer p { color: var(--paper); }
.foot-brand {
 font-family: var(--font-serif);
 font-size: 1.25rem;
 font-weight: 700;
 margin-bottom: 8px;
}
.foot-links { list-style: none; margin: 0; padding: 0; }
.foot-links a {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
}
.fine {
 margin-top: 22px;
 padding-top: 14px;
 border-top: 1px solid rgba(244, 239, 230, 0.25);
 color: var(--note);
 font-size: 0.92rem;
}
.still-cap { margin: 0; padding: 0 18px 14px; color: var(--muted); font-size: 0.92rem; }
@media (max-width: 1024px) {
 :root { --space: 64px; }
 .timeline::before { left: 112px; }
 .tl-item { grid-template-columns: 100px 1fr; gap: 18px; }
}
@media (max-width: 768px) {
 :root { --space: 48px; }
 .nav-search, .nav-cta { display: none; }
 .icon-btn { display: inline-flex; }
 .brand-text { font-size: 0.98rem; }
 .timeline::before { left: 18px; }
 .tl-item { grid-template-columns: 1fr; gap: 6px; padding-left: 36px; }
 .tl-date { padding-top: 0; }
}
@media (max-width: 520px) {
 .container { width: min(1120px, calc(100% - 20px)); }
 h1 { font-size: 1.65rem; }
 .section { padding: 44px 0; }
 .nav-row { min-height: 64px; }
}

/* roulang page: category1 */
:root {
 --plum: #6B2D5B;
 --plum-hover: #5C264E;
 --plum-active: #4A1E3F;
 --amber: #C47B4A;
 --amber-hover: #B06C3E;
 --amber-active: #945A32;
 --paper: #F4EFE6;
 --paper-light: #FBF8F3;
 --note: #F3D7C4;
 --ink: #1C1917;
 --muted: #5C514C;
 --line: #3F2E2A;
 --radius: 12px;
 --radius-btn: 8px;
 --shadow: 0 1px 2px rgba(63, 46, 42, 0.08);
 --space: 84px;
 --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
 --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
/* roulang page: category1 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 background: var(--paper);
 color: var(--ink);
 font-family: var(--font-sans);
 font-size: 1.02rem;
 line-height: 1.85;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--plum); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible {
 outline: 2px solid var(--amber);
 outline-offset: 3px;
}
button, input { font-family: inherit; }
p { margin: 0 0 1.2em; }
.show-for-sr {
 position: absolute;
 width: 1px;
 height: 1px;
 padding: 0;
 margin: -1px;
 overflow: hidden;
 clip: rect(0, 0, 0, 0);
 white-space: nowrap;
 border: 0;
}
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: var(--paper-light);
 border-bottom: 1px solid var(--line);
}
.nav-row {
 display: flex;
 align-items: center;
 gap: 16px;
 min-height: 72px;
}
.brand {
 display: flex;
 align-items: center;
 gap: 10px;
 min-height: 44px;
 color: var(--ink);
 flex: 1 1 auto;
 min-width: 0;
}
.brand:hover { text-decoration: none; color: var(--plum); }
.brand-mark {
 flex: 0 0 auto;
 background: var(--plum);
 color: var(--paper-light);
 border-radius: var(--radius-btn);
 padding: 4px 8px;
 font-size: 0.75rem;
 letter-spacing: 0.08em;
}
.brand-text {
 font-family: var(--font-serif);
 font-weight: 700;
 font-size: 1.08rem;
 line-height: 1.35;
}
.nav-search {
 display: flex;
 align-items: center;
 gap: 8px;
 flex: 0 1 320px;
}
.nav-search input, .search-form input {
 width: 100%;
 min-height: 44px;
 border: 1px solid var(--plum);
 background: var(--paper-light);
 color: var(--ink);
 border-radius: var(--radius-btn);
 padding: 0 12px;
 box-shadow: none;
 margin: 0;
}
.nav-search input:focus, .search-form input:focus {
 border-color: var(--plum);
 box-shadow: 0 0 0 3px rgba(196, 123, 74, 0.45);
 outline: none;
}
.nav-cta { flex: 0 0 auto; }
.icon-btn {
 display: none;
 width: 44px;
 height: 44px;
 align-items: center;
 justify-content: center;
 border: 1px solid var(--plum);
 border-radius: var(--radius-btn);
 background: var(--plum);
 color: var(--paper-light);
}
.icon-btn:hover { background: var(--plum-hover); text-decoration: none; color: var(--paper-light); }
.icon-btn:active { background: var(--plum-active); }
.channel-scroll {
 overflow-x: auto;
 padding: 0 0 12px;
 -webkit-overflow-scrolling: touch;
}
.channel-row { display: flex; gap: 8px; min-width: max-content; }
.channel-link {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--line);
 color: var(--ink);
 background: transparent;
 white-space: nowrap;
}
.channel-link:hover { background: var(--note); color: var(--plum); text-decoration: none; }
.channel-link:active, .channel-link.is-active {
 background: var(--plum);
 color: var(--paper-light);
 border-color: var(--plum);
}
.channel-link.is-active:hover { background: var(--plum-hover); color: var(--paper-light); }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--radius-btn);
 border: 1px solid transparent;
 font-weight: 700;
 line-height: 1.2;
 cursor: pointer;
 text-decoration: none;
 transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-solid { background: var(--plum); color: var(--paper-light); }
.btn-solid:hover { background: var(--plum-hover); color: var(--paper-light); }
.btn-solid:active { background: var(--plum-active); color: var(--paper-light); }
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-hover); color: var(--ink); }
.btn-amber:active { background: var(--amber-active); color: var(--paper-light); }
.btn-line { background: transparent; border-color: var(--amber); color: var(--plum); }
.btn-line:hover { background: var(--amber); color: var(--ink); }
.btn-line:active { background: var(--amber-active); color: var(--paper-light); }
.btn-ghost { background: transparent; border-color: var(--paper-light); color: var(--paper-light); }
.btn-ghost:hover { background: var(--paper-light); color: var(--plum); }
.btn-ghost:active { background: var(--note); color: var(--ink); }
.hero { background: var(--paper); padding: 0; }
.hero-slant {
 position: relative;
 background: var(--plum);
 color: var(--paper-light);
 padding: 76px 0 108px;
 overflow: hidden;
}
.hero-slant::after {
 content: "";
 position: absolute;
 left: 0;
 right: 0;
 bottom: -1px;
 height: 52px;
 background: var(--paper);
 clip-path: polygon(0 100%, 100% 0, 100% 100%);
}
.hero-slant h1, .hero-slant .hero-line, .hero-slant .eyebrow { color: var(--paper-light); }
.hero-watermark {
 position: absolute;
 right: 6%;
 top: 18px;
 font-family: var(--font-serif);
 font-size: 7.5rem;
 line-height: 1;
 color: rgba(244, 239, 230, 0.12);
 pointer-events: none;
}
.eyebrow, .sec-kicker {
 font-family: var(--font-sans);
 font-size: 0.82rem;
 letter-spacing: 0.14em;
 color: var(--amber);
 margin: 0 0 10px;
}
.hero-line { font-size: 1.12rem; margin: 0 0 22px; max-width: 28em; line-height: 1.7; }
.hero-stage { position: relative; }
.still img, .still svg { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; height: auto; display: block; }
.still { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--ink); }
.hero-card {
 position: relative;
 margin-top: -72px;
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 28px 32px 12px;
}
.section { padding: var(--space) 0; scroll-margin-top: 128px; }
.section-paper { background: var(--paper); }
.section-light { background: var(--paper-light); }
.section-note { background: var(--note); }
.section-plum { background: var(--plum); color: var(--paper-light); }
.section-plum h2, .section-plum h3, .section-plum p { color: var(--paper-light); }
.section-plum .sec-desc, .section-plum .sec-kicker { color: var(--note); }
h1, h2, h3 {
 font-family: var(--font-serif);
 font-weight: 700;
 line-height: 1.3;
 color: var(--ink);
 margin: 0 0 12px;
}
h1 { font-size: clamp(1.85rem, 3vw, 2.45rem); max-width: 12em; }
h2 { font-size: clamp(1.45rem, 2.3vw, 1.85rem); }
h3 { font-size: 1.22rem; margin-top: 0; }
.lead, .sec-desc { color: var(--muted); max-width: 38em; margin: 0 0 0.4em; }
.section-plum .lead, .section-plum .sec-desc { color: var(--paper-light); }
.pain-row {
 display: grid;
 grid-template-columns: 1fr 1fr;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 overflow: hidden;
 margin-bottom: 14px;
 background: var(--paper-light);
}
.path-node, .step-item, .scene-card, .stat-item, .sticky-note, .entry-card, .metric, .search-panel, .contrast-panel, .v-card {
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.step-list { display: flex; flex-direction: column; gap: 14px; }
.step-item { padding: 18px 20px 6px; }
.step-item:nth-child(2) { margin-left: 6%; }
.step-item:nth-child(3) { margin-left: 12%; }
.step-item:nth-child(4) { margin-left: 18%; }
.scene-card { height: 100%; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.scene-card:hover { transform: translateY(-1px); box-shadow: 0 2px 4px rgba(63, 46, 42, 0.12); }
.scene-card img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.scene-body { padding: 16px 16px 8px; }
.grid-x { display: flex; flex-flow: row wrap; }
.grid-x > .cell { width: 100%; min-width: 0; padding: 0 10px; }
.pill-row {
 display: flex;
 gap: 10px;
 overflow-x: auto;
 padding-bottom: 6px;
 -webkit-overflow-scrolling: touch;
}
.pill {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--paper-light);
 color: var(--ink);
 white-space: nowrap;
 transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.pill:hover { background: var(--note); color: var(--plum); text-decoration: none; transform: translateY(-1px); }
.pill:active { background: var(--plum); color: var(--paper-light); transform: translateY(0); }
.v-list { display: flex; flex-direction: column; gap: 16px; }
.v-card { padding: 16px 8px; scroll-margin-top: 132px; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.v-card:hover { transform: translateY(-1px); box-shadow: 0 2px 4px rgba(63, 46, 42, 0.12); }
.v-body { padding: 8px 8px 4px; }
.v-body p { margin-bottom: 0.8em; }
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 10px;
 border-radius: 999px;
 background: var(--plum);
 color: var(--paper-light);
 font-size: 0.78rem;
 font-weight: 700;
 letter-spacing: 0.04em;
}
.badge-amber { background: var(--amber); color: var(--ink); }
.badge-line { background: transparent; color: var(--plum); border: 1px solid var(--plum); }
.text-link {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 color: var(--plum);
 font-weight: 700;
 border-bottom: 1px solid transparent;
}
.text-link:hover { text-decoration: none; border-bottom-color: var(--plum); }
.contrast-panel, .sticky-note, .metric {
 padding: 22px 22px 8px;
 height: 100%;
}
.contrast-panel + .contrast-panel { margin-top: 0; }
.relist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.relist li {
 display: flex;
 align-items: center;
 gap: 12px;
 flex-wrap: wrap;
 background: var(--paper-light);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 8px 14px;
}
.relist a { font-family: var(--font-serif); font-weight: 700; color: var(--ink); min-height: 44px; display: inline-flex; align-items: center; }
.relist a:hover { color: var(--plum); }
.relist span.meta { color: var(--muted); font-size: 0.92rem; }
.more-line { max-width: 36em; }
.note-wrap { max-width: 720px; }
.sticky-note { background: var(--paper-light); transform: rotate(-0.4deg); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site-footer {
 background: var(--ink);
 color: var(--paper-light);
 padding: 56px 0 28px;
}
.site-footer p { color: var(--paper-light); }
.foot-brand {
 font-family: var(--font-serif);
 font-size: 1.28rem;
 font-weight: 700;
 margin: 0 0 10px;
}
.foot-links { list-style: none; margin: 0; padding: 0; }
.foot-links a {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 color: var(--note);
}
.foot-links a:hover { color: var(--paper-light); }
.fine {
 color: #cbbfb6;
 font-size: 0.88rem;
 margin: 22px 0 0;
 padding-top: 16px;
 border-top: 1px solid rgba(244, 239, 230, 0.2);
}
@media (min-width: 640px) {
 .medium-5 { width: 41.666%; }
 .medium-6 { width: 50%; }
 .medium-7 { width: 58.333%; }
}
@media (min-width: 1024px) {
 .large-5 { width: 41.666%; }
 .large-6 { width: 50%; }
 .large-7 { width: 58.333%; }
}
@media (max-width: 1024px) {
 :root { --space: 72px; }
 .brand-text { font-size: 1rem; }
}
@media (max-width: 768px) {
 :root { --space: 48px; }
 .nav-search, .nav-cta { display: none; }
 .icon-btn { display: inline-flex; }
 .step-item:nth-child(n) { margin-left: 0; }
 .pain-row { grid-template-columns: 1fr; }
 .hero-card { padding: 20px 16px 8px; }
 .sticky-note { transform: none; }
}
@media (max-width: 520px) {
 :root { --space: 42px; }
 .container { width: min(1120px, calc(100% - 20px)); }
 .brand-text { font-size: 0.92rem; }
 h1 { font-size: 1.7rem; }
 .relist li { align-items: flex-start; }
}