/* roulang page: index */
:root {
  --ink: #2C1A28;
  --celadon: #5E7D68;
  --celadon-deep: #3F5A49;
  --clay: #C46A45;
  --clay-deep: #A35334;
  --paper: #F4EFE7;
  --night: #1A1418;
  --night-2: #241C22;
  --text: #1C1614;
  --muted: #5E564F;
  --line: #E4D9CC;
  --card: #FFFcf8;
  --radius: 18px;
  --nav-radius: 20px;
  --shadow: 0 10px 24px rgba(28, 22, 20, 0.06);
  --shadow-hover: 0 16px 28px rgba(28, 22, 20, 0.1);
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.site {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}
body.site h1, body.site h2, body.site h3, body.site p { margin: 0; }
body.site h1, body.site h2, body.site h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}
body.site h1 { font-size: clamp(30px, 4vw, 44px); }
body.site h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
body.site h3 { font-size: 18px; line-height: 1.45; }
body.site p { margin-bottom: 0.85em; }
body.site p:last-child { margin-bottom: 0; }
body.site img { max-width: 100%; display: block; border: 0; }
body.site a { color: var(--celadon-deep); text-decoration: none; text-underline-offset: 3px; }
body.site a:hover { text-decoration: underline; }
body.site button, body.site input, body.site select {
  font-family: inherit;
  font-size: 16px;
  line-height: 1.5;
}
body.site button { cursor: pointer; }
body.site ::selection { background: rgba(196, 106, 69, 0.22); }
:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.container { width: min(var(--container), calc(100% - 32px)); margin-inline: auto; }
.section { padding: 48px 0; position: relative; }
.section-paper { background: var(--paper); color: var(--text); }
.section-night { background: var(--night); color: #F4EFE7; }
.section-night h2, .section-night h3 { color: #F4EFE7; }
.section-night p, .section-night .lede { color: #D5CBC2; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.lede { font-size: 17px; line-height: 1.85; color: var(--muted); }
.scroll-rule {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 22px;
  height: 16px;
}
.scroll-rule::before, .scroll-rule::after {
  content: "";
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.section-night .scroll-rule::before, .section-night .scroll-rule::after {
  background: linear-gradient(90deg, transparent, #4A3C43, transparent);
}
.scroll-rule i {
  width: 8px;
  height: 8px;
  border: 1px solid var(--clay);
  transform: rotate(45deg);
  display: block;
}
.site-header { position: relative; z-index: 50; padding: 16px 0 8px; }
.site-header .container { position: relative; }
.float-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 68px;
  padding: 10px 12px 10px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--nav-radius);
  box-shadow: var(--shadow);
  position: relative;
}
.site-header.is-stuck {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 8px 12px;
}
.site-header.is-stuck .container { width: 100%; max-width: none; }
.site-header.is-stuck .float-nav { min-height: 56px; padding-top: 6px; padding-bottom: 6px; }
.header-spacer[hidden] { display: none !important; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink) !important;
  text-decoration: none !important;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 16px;
  white-space: nowrap;
}
.crest { width: 28px; height: 28px; flex: 0 0 auto; }
.menu-toggle {
  display: none;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: var(--ink);
  color: #F4EFE7;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  font-weight: 700;
}
.menu-toggle:hover { background: #1a0e16; transform: translateY(-1px); }
.menu-toggle:active { transform: translateY(1px); }
.nav-panel { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; justify-content: flex-end; }
.site .nav-panel a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 10px;
  line-height: 1.3;
}
.site .nav-panel a:hover { color: var(--celadon-deep); text-decoration: underline; background: rgba(94, 125, 104, 0.1); }
.site .nav-panel a:active { transform: translateY(1px); }
.site .nav-panel a.active { background: rgba(196, 106, 69, 0.14); color: var(--ink); text-decoration: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none !important;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  appearance: none;
  -webkit-appearance: none;
}
.btn-clay { background: var(--clay); color: #fff !important; }
.btn-clay:hover { background: var(--clay-deep); transform: translateY(-1px); box-shadow: 0 8px 16px rgba(164, 83, 52, 0.25); }
.btn-ink { background: var(--ink); color: #F4EFE7 !important; }
.btn-ink:hover { background: #1a0e16; transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(94, 125, 104, 0.2); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.section-night .card {
  background: var(--night-2);
  border-color: #3A2E34;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  color: #F4EFE7;
}
.card-hover { transition: transform .18s ease, box-shadow .18s ease; }
.card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.seal {
  width: 72px;
  height: 72px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1.5px solid var(--clay);
  color: var(--clay);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transform: rotate(-8deg);
  background: rgba(196, 106, 69, 0.08);
}
.cover { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; }
.cover.ratio-4-3 { aspect-ratio: 4 / 3; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.hero-copy h1::before {
  content: "";
  display: block;
  width: 42px;
  height: 10px;
  margin-bottom: 14px;
  background:
    linear-gradient(var(--clay), var(--clay)) left center / 22px 2px no-repeat,
    linear-gradient(var(--celadon), var(--celadon)) 28px center / 12px 2px no-repeat;
}
.hero-copy .lede { font-size: 18px; max-width: 34em; margin: 12px 0 18px; }
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.metric { padding: 16px 16px 14px; }
.metric strong {
  display: block;
  font-size: 32px;
  line-height: 1.1;
  color: var(--clay);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.metric span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
.progress-block { margin-top: 22px; }
.progress-meta { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.progress { height: 6px; border-radius: 99px; background: #E7DDD2; overflow: hidden; }
.progress > span { display: block; height: 100%; width: 0; background: var(--celadon); border-radius: inherit; }
.scene-grid { display: grid; gap: 16px; }
.scene-card { overflow: hidden; display: flex; flex-direction: column; min-height: 100%; }
.scene-card .cover { border-radius: 0; }
.scene-body { padding: 18px 18px 20px; }
.scene-body h3 { margin-bottom: 8px; }
.scene-card .corner {
  pointer-events: none;
  position: absolute;
  top: 10px;
  left: 10px;
  width: 16px;
  height: 16px;
  border-top: 1px solid var(--clay);
  border-left: 1px solid var(--clay);
  z-index: 1;
}
.matrix { display: grid; gap: 16px; }
.matrix-card { padding: 18px 18px 20px; }
.matrix-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.matrix-top h3 { padding-top: 8px; }
.compare { display: grid; gap: 16px; }
.compare-card { padding: 8px 8px 12px; }
.compare-card h3 {
  margin: 12px 14px 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.section-night .compare-card h3 { border-bottom-color: #3A2E34; }
.cmp-row { display: grid; gap: 4px; padding: 12px 14px; }
.cmp-row + .cmp-row { border-top: 1px dashed var(--line); }
.section-night .cmp-row + .cmp-row { border-top-color: #3A2E34; }
.cmp-row span { color: var(--celadon); font-size: 13px; font-weight: 700; letter-spacing: 0.04em; }
.section-night .cmp-row span { color: #8FB5A0; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.timeline li {
  position: relative;
  padding: 18px 16px 16px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.timeline .node {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ink);
  color: #F4EFE7;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 10px;
}
.timeline time { display: block; color: var(--clay); font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.rail {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 2px 12px;
  scrollbar-color: #5E7D68 transparent;
}
.rail-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  padding: 16px;
  display: block;
  color: inherit !important;
  text-decoration: none !important;
}
.rail-card:hover { text-decoration: none !important; }
.rail-index { color: var(--clay); font-weight: 700; font-size: 13px; letter-spacing: 0.08em; }
.rail-card h3 { margin: 8px 0; }
.rail-card p { color: #D5CBC2; font-size: 15px; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-card { padding: 16px 18px; display: grid; gap: 6px; }
.news-card time { color: var(--clay); font-weight: 700; font-size: 14px; }
.news-card h3 { font-size: 18px; }
.news-more { margin-top: 18px; }
.topic-grid { display: grid; gap: 16px; }
.topic-card {
  display: grid;
  gap: 16px;
  padding: 18px;
  color: inherit !important;
  text-decoration: none !important;
}
.topic-card:hover { text-decoration: none !important; }
.topic-card p { color: #D5CBC2; }
.steps { display: grid; gap: 14px; }
.step {
  padding: 18px 16px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.step b {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1.5px solid var(--clay);
  color: var(--clay);
  margin-bottom: 10px;
  background: rgba(196, 106, 69, 0.08);
}
.step h3 { margin-bottom: 8px; }
.promise-list { display: grid; gap: 14px; }
.promise {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: start;
  padding: 16px;
}
.promise svg { width: 36px; height: 36px; }
.promise h3 { margin-bottom: 6px; font-size: 17px; }
.device-grid { display: grid; gap: 16px; }
.device-card { padding: 18px; }
.device-card h3 { margin-bottom: 8px; }
.wire { display: grid; gap: 10px; margin-top: 14px; }
.wire.two { grid-template-columns: 1fr 1fr; }
.qa-list { display: grid; gap: 0; }
.qa-item { padding: 18px 0; border-top: 1px solid #3A2E34; display: grid; gap: 8px; }
.qa-item:first-child { border-top: 0; padding-top: 0; }
.qa-item h3 { font-size: 18px; }
.faq-list { display: grid; gap: 10px; }
.faq-item { overflow: hidden; }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--ink);
  border: 0;
  padding: 16px 44px 16px 16px;
  font-weight: 700;
  position: relative;
  min-height: 56px;
}
.faq-q::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--clay);
  border-bottom: 2px solid var(--clay);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .15s ease;
}
.faq-q[aria-expanded="true"]::after { transform: translateY(-30%) rotate(225deg); }
.faq-q:hover { background: rgba(94, 125, 104, 0.08); }
.faq-a { padding: 0 16px 16px; color: var(--muted); }
.form-grid { display: grid; gap: 28px; align-items: start; }
.field { display: grid; gap: 8px; margin-bottom: 14px; }
.field span { font-weight: 700; color: #F4EFE7; font-size: 15px; }
.field input, .field select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #5C4E55;
  background: #140F12;
  color: #F4EFE7;
  appearance: none;
  -webkit-appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, #C46A45 50%), linear-gradient(135deg, #C46A45 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 12px) calc(50% - 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.field input:focus, .field select:focus { border-color: var(--celadon); outline: 2px solid var(--celadon); outline-offset: 1px; }
.form-panel {
  background: var(--night-2);
  border: 1px solid #3A2E34;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}
.site-footer { background: var(--night); color: #D5CBC2; padding: 48px 0 36px; border-top: 1px solid #3A2E34; }
.footer-brand { color: #F4EFE7; font-size: 20px; font-weight: 700; margin-bottom: 18px; letter-spacing: -0.02em; }
.footer-grid { display: grid; gap: 22px; }
.site-footer h2 { font-size: 15px; color: #F4EFE7; margin-bottom: 10px; letter-spacing: 0; }
.footer-links { display: grid; gap: 6px; }
.site .site-footer a { color: #8FB5A0; }
.site .site-footer a:hover { color: #F4EFE7; }
.copyright { margin-top: 22px; padding-top: 16px; border-top: 1px solid #3A2E34; color: #B7AA9F; font-size: 14px; }
@media (min-width: 768px) {
  .news-card { grid-template-columns: 132px 1fr; align-items: center; column-gap: 18px; }
  .matrix { grid-template-columns: 1fr 1fr; }
  .promise-list { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1.3fr 0.8fr; }
  .topic-card { grid-template-columns: 1.3fr 0.9fr; align-items: center; }
  .qa-item { grid-template-columns: 0.8fr 1.2fr; gap: 24px; align-items: start; }
}
@media (min-width: 1024px) {
  .section { padding: 88px 0; }
  .hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); }
  .scene-grid { grid-template-columns: 1.35fr 0.9fr; grid-template-areas: "main sub1" "main sub2"; min-height: 560px; }
  .scene-main { grid-area: main; }
  .scene-a { grid-area: sub1; }
  .scene-b { grid-area: sub2; }
  .compare { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: repeat(4, 1fr); position: relative; }
  .timeline::before {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    top: 36px;
    height: 1px;
    background: var(--line);
  }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .device-grid { grid-template-columns: 1.15fr 0.85fr; }
  .form-grid { grid-template-columns: 0.9fr 1.1fr; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1200px) {
  .promise-list { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 767px) {
  .menu-toggle { display: inline-flex; align-items: center; }
  .nav-panel {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--nav-radius);
    box-shadow: var(--shadow);
    padding: 8px;
    z-index: 60;
  }
  .nav-panel.is-open { display: flex; }
  .site .nav-panel a { min-height: 44px; display: flex; align-items: center; }
  .metric strong { font-size: 28px; }
  .rail-card { flex-basis: 78%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card-hover, .faq-q::after { transition: none; }
}

/* roulang page: category1 */
:root {
  --ink: #2C1A28;
  --celadon: #5E7D68;
  --celadon-deep: #3F5A49;
  --clay: #C46A45;
  --clay-deep: #A35334;
  --paper: #F4EFE7;
  --night: #1A1418;
  --night-2: #241C22;
  --text: #1C1614;
  --muted: #5E564F;
  --line: #E4D9CC;
  --card: #FFFcf8;
  --radius: 18px;
  --nav-radius: 20px;
  --shadow: 0 10px 24px rgba(28, 22, 20, 0.06);
  --shadow-hover: 0 16px 28px rgba(28, 22, 20, 0.1);
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.site {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}
body.site h1, body.site h2, body.site h3, body.site p { margin: 0; }
body.site h1, body.site h2, body.site h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}
body.site h1 { font-size: clamp(30px, 4vw, 44px); }
body.site h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
body.site h3 { font-size: 18px; line-height: 1.45; }
body.site p { margin-bottom: 0.85em; }
body.site p:last-child { margin-bottom: 0; }
body.site img { max-width: 100%; display: block; border: 0; }
body.site a { color: var(--celadon-deep); text-decoration: none; text-underline-offset: 3px; }
body.site a:hover { text-decoration: underline; }
body.site button, body.site input, body.site select, body.site summary {
  font-family: inherit;
  font-size: 16px;
  line-height: 1.5;
}
body.site button { cursor: pointer; }
body.site ::selection { background: rgba(196, 106, 69, 0.22); }
.container { width: min(var(--container), calc(100% - 32px)); margin-inline: auto; }
.section { padding: 88px 0; position: relative; }
.section-paper { background: var(--paper); color: var(--text); }
.section-sheet { background: #EFE7DC; color: var(--text); }
.section-night { background: var(--night); color: #F4EFE7; }
.section-night h2, .section-night h3 { color: #F4EFE7; }
.section-night p, .section-night .lede { color: #D5CBC2; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.lede { color: var(--muted); font-size: 17px; line-height: 1.8; }
.section-night .lede { color: #D5CBC2; }
.scroll-rule {
  height: 18px;
  margin: 8px 0 22px;
  position: relative;
}
.scroll-rule::before, .scroll-rule::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 8px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #C9B8A6, transparent);
}
.scroll-rule::after {
  top: 12px;
  opacity: 0.7;
}
.section-night .scroll-rule::before, .section-night .scroll-rule::after {
  background: linear-gradient(90deg, transparent, #4A3C43, transparent);
}
.site-header { position: relative; z-index: 50; padding: 16px 0 8px; }
.site-header .container { position: relative; }
.float-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 68px;
  padding: 10px 12px 10px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--nav-radius);
  box-shadow: var(--shadow);
  position: relative;
}
.site-header.is-stuck {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 8px 12px;
}
.site-header.is-stuck .container { width: min(var(--container), calc(100% - 24px)); }
.site-header.is-stuck .float-nav { min-height: 56px; padding-top: 6px; padding-bottom: 6px; }
.header-spacer[hidden] { display: none !important; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink) !important;
  text-decoration: none !important;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 16px;
  white-space: nowrap;
}
.crest { width: 28px; height: 28px; flex: 0 0 auto; }
.menu-toggle {
  display: none;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: var(--ink);
  color: #F4EFE7;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  font-weight: 700;
}
.menu-toggle:hover { background: #1a0e16; transform: translateY(-1px); }
.menu-toggle:active { transform: translateY(1px); }
.menu-toggle:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.nav-panel { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; justify-content: flex-end; }
.site .nav-panel a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 10px;
  line-height: 1.3;
}
.site .nav-panel a:hover { color: var(--celadon-deep); text-decoration: underline; background: rgba(94, 125, 104, 0.1); }
.site .nav-panel a:active { transform: translateY(1px); }
.site .nav-panel a.active { background: rgba(196, 106, 69, 0.14); color: var(--ink); text-decoration: none; }
.site .nav-panel a:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none !important;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  appearance: none;
  -webkit-appearance: none;
}
.btn-clay { background: var(--clay); color: #fff !important; }
.btn-clay:hover { background: var(--clay-deep); transform: translateY(-1px); box-shadow: 0 8px 16px rgba(164, 83, 52, 0.25); }
.btn-ink { background: var(--ink); color: #F4EFE7 !important; }
.btn-ink:hover { background: #1a0e16; transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(94, 125, 104, 0.2); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.section-night .card {
  background: var(--night-2);
  border-color: #3A2E34;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  color: #F4EFE7;
}
.card-hover { transition: transform .18s ease, box-shadow .18s ease; }
.card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px dashed var(--clay);
  color: var(--clay-deep);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: rgba(196, 106, 69, 0.08);
  white-space: nowrap;
}
.section-night .seal { color: #E7B39A; border-color: #C46A45; background: rgba(196, 106, 69, 0.12); }
.corner {
  pointer-events: none;
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1.5px solid rgba(94, 125, 104, 0.7);
}
.corner-tl { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.corner-br { right: 10px; bottom: 10px; border-left: 0; border-top: 0; }
.cat-head {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(240px, 0.7fr);
  gap: 28px;
  align-items: end;
}
.cat-head h1::before {
  content: "";
  display: block;
  width: 42px;
  height: 10px;
  margin-bottom: 14px;
  background:
    linear-gradient(var(--clay), var(--clay)) left center / 22px 2px no-repeat,
    linear-gradient(var(--celadon), var(--celadon)) 28px center / 12px 2px no-repeat;
}
.tag-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  padding: 16px;
}
.tag, .genre-tag {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 252, 248, 0.7);
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none !important;
}
.tag { cursor: default; }
.genre-tag:hover { border-color: var(--celadon); color: var(--celadon-deep); text-decoration: underline !important; }
.genre-tag:focus-visible, .tag:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.genre-tag.is-on, .entry.is-hot {
  border-color: var(--celadon);
  box-shadow: 0 0 0 3px rgba(94, 125, 104, 0.18);
}
.entry-list { display: flex; flex-direction: column; gap: 16px; }
.entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 22px;
  align-items: center;
  padding: 18px 18px 18px 20px;
  overflow: hidden;
}
.entry-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 14px;
}
.entry h3 { margin-bottom: 8px; }
.entry p { color: var(--muted); font-size: 16px; }
.cover {
  border-radius: 14px;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(196, 106, 69, 0.28), transparent 42%),
    radial-gradient(circle at 80% 70%, rgba(94, 125, 104, 0.35), transparent 46%),
    linear-gradient(145deg, #2C1A28, #4A3142 55%, #1A1418);
}
.cover::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(244, 239, 231, 0.28);
  border-radius: 10px;
}
.ratio-16x9 { aspect-ratio: 16 / 9; }
.cover-label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 1;
  color: #F4EFE7;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.genre-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.week-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}
.week-cell {
  min-height: 132px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.week-cell strong { font-size: 28px; line-height: 1; color: #F4EFE7; display: block; }
.week-cell span { color: #D5CBC2; font-size: 14px; }
.week-cell em { font-style: normal; color: #E7B39A; font-size: 13px; font-weight: 700; }
.compare-list { display: flex; flex-direction: column; gap: 12px; }
.compare-row {
  display: grid;
  grid-template-columns: 140px 1fr 1fr;
  gap: 12px;
  padding: 16px 18px;
  align-items: center;
}
.compare-row b { color: var(--ink); font-size: 15px; }
.compare-row p { margin: 0; font-size: 15px; color: var(--muted); }
.read-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}
.read-grid .card { padding: 20px; min-height: 160px; display: flex; flex-direction: column; justify-content: space-between; }
.read-grid .wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 16px; align-items: center; }
.note-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.note-card { padding: 22px 20px 20px; }
.note-card h3 { margin: 12px 0 8px; }
.note-card p { color: var(--muted); }
.qa-list { display: flex; flex-direction: column; gap: 12px; }
.qa-item { padding: 0; overflow: hidden; }
.qa-item summary {
  list-style: none;
  cursor: pointer;
  min-height: 56px;
  padding: 16px 18px;
  font-weight: 700;
  color: #F4EFE7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.qa-item summary::-webkit-details-marker { display: none; }
.qa-item summary::after { content: "＋"; color: #E7B39A; font-weight: 700; }
.qa-item[open] summary::after { content: "－"; }
.qa-item summary:focus-visible { outline: 2px solid var(--celadon); outline-offset: -2px; }
.qa-item .qa-body { padding: 0 18px 16px; color: #D5CBC2; }
.more-link { margin-top: 18px; font-weight: 700; }
.site-footer { background: var(--night); color: #D5CBC2; padding: 56px 0 32px; }
.footer-brand { color: #F4EFE7; font-size: 22px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 22px; }
.footer-grid { display: grid; grid-template-columns: 1.1fr 1.4fr 0.8fr; gap: 28px; }
.site-footer h2 { color: #F4EFE7; font-size: 16px; margin-bottom: 10px; }
.site-footer p { color: #D5CBC2; font-size: 15px; }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.site-footer a { color: var(--celadon); }
.site-footer a:hover { color: #D5E6DA; }
.copyright { margin-top: 26px; padding-top: 16px; border-top: 1px solid #3A2E34; font-size: 14px; color: #B7ADA6; }
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .entry { grid-template-columns: minmax(0, 1fr) 220px; }
  .read-grid, .read-grid .wide, .compare-row { grid-template-columns: 1fr; }
  .week-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .menu-toggle { display: inline-flex; align-items: center; }
  .nav-panel {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 8px;
    box-shadow: var(--shadow);
    z-index: 20;
  }
  .nav-panel.is-open { display: flex; }
  .site .nav-panel a { min-height: 44px; display: flex; align-items: center; }
  .cat-head, .entry, .note-row, .footer-grid { grid-template-columns: 1fr; }
  .tag-rail { justify-content: flex-start; }
  .week-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand span { max-width: 46vw; overflow: hidden; text-overflow: ellipsis; }
}
@media (max-width: 520px) {
  body.site { font-size: 16px; }
  .container { width: min(var(--container), calc(100% - 32px)); }
  .week-cell { min-height: 108px; }
  .week-cell strong { font-size: 24px; }
}

/* roulang page: category2 */
:root {
 --ink: #2C1A28;
 --celadon: #5E7D68;
 --celadon-deep: #3F5A49;
 --celadon-soft: #8FB39C;
 --clay: #C46A45;
 --clay-deep: #A35334;
 --paper: #F4EFE7;
 --night: #1A1418;
 --night-2: #241C22;
 --text: #1C1614;
 --muted: #5E564F;
 --line: #E4D9CC;
 --card: #FFFcf8;
 --radius: 18px;
 --nav-radius: 20px;
 --shadow: 0 10px 24px rgba(28, 22, 20, 0.06);
 --shadow-hover: 0 16px 28px rgba(28, 22, 20, 0.1);
 --container: 1200px;
 --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}
/* roulang page: fenlei-guochan */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.site {
 margin: 0;
 color: var(--text);
 background: var(--paper);
 font-family: var(--font);
 font-size: 17px;
 line-height: 1.8;
 text-rendering: optimizeLegibility;
}
body.site h1, body.site h2, body.site h3, body.site p { margin: 0; }
body.site h1, body.site h2, body.site h3 {
 font-weight: 700;
 letter-spacing: -0.02em;
 line-height: 1.3;
 color: var(--ink);
}
body.site h1 { font-size: clamp(30px, 4vw, 44px); }
body.site h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
body.site h3 { font-size: 18px; line-height: 1.45; }
body.site p { margin-bottom: 0.85em; }
body.site p:last-child { margin-bottom: 0; }
body.site img { max-width: 100%; display: block; border: 0; }
body.site a { color: var(--celadon-deep); text-decoration: none; text-underline-offset: 3px; }
body.site a:hover { text-decoration: underline; }
body.site button, body.site input, body.site select {
 font-family: inherit;
 font-size: 16px;
 line-height: 1.5;
}
body.site button { cursor: pointer; }
body.site ::selection { background: rgba(196, 106, 69, 0.22); }
.container { width: min(var(--container), calc(100% - 32px)); margin-inline: auto; }
.section { padding: 84px 0; position: relative; }
.section-paper { background: var(--paper); color: var(--text); }
.section-night { background: var(--night); color: #F4EFE7; }
.section-night h2, .section-night h3 { color: #F4EFE7; }
.section-night p, .section-night .lede { color: #D5CBC2; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.lede { color: var(--muted); font-size: 17px; line-height: 1.8; }
.section-night .lede { color: #D5CBC2; }
.scroll-rule { display: flex; align-items: center; gap: 12px; margin: 14px 0 0; color: var(--clay); font-size: 13px; font-weight: 700; letter-spacing: 0.08em; }
.scroll-rule::before, .scroll-rule::after { content: ""; height: 1px; flex: 1; background: linear-gradient(90deg, transparent, var(--line), transparent); }
.section-night .scroll-rule { color: var(--clay); }
.section-night .scroll-rule::before, .section-night .scroll-rule::after { background: linear-gradient(90deg, transparent, #4A3C43, transparent); }
.site-header { position: relative; z-index: 50; padding: 16px 0 8px; }
.site-header .container { position: relative; }
.float-nav {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 min-height: 68px;
 padding: 10px 12px 10px 16px;
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--nav-radius);
 box-shadow: var(--shadow);
 position: relative;
}
.site-header.is-stuck { position: fixed; top: 0; left: 0; right: 0; padding: 8px 12px; }
.site-header.is-stuck .container { width: min(var(--container), calc(100% - 24px)); }
.site-header.is-stuck .float-nav { min-height: 56px; padding-top: 6px; padding-bottom: 6px; }
.header-spacer[hidden] { display: none !important; }
.brand {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 color: var(--ink) !important;
 text-decoration: none !important;
 font-weight: 700;
 letter-spacing: -0.02em;
 font-size: 16px;
 white-space: nowrap;
}
.crest { width: 28px; height: 28px; flex: none; }
.menu-toggle {
 display: none;
 appearance: none;
 -webkit-appearance: none;
 border: 0;
 background: var(--ink);
 color: #F4EFE7;
 min-height: 44px;
 padding: 0 14px;
 border-radius: 12px;
 font-weight: 700;
}
.menu-toggle:hover { background: #1a0e16; transform: translateY(-1px); }
.menu-toggle:active { transform: translateY(1px); }
.menu-toggle:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.nav-panel { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; justify-content: flex-end; }
.site .nav-panel a {
 color: var(--ink);
 text-decoration: none;
 font-weight: 600;
 padding: 8px 10px;
 border-radius: 10px;
 line-height: 1.3;
}
.site .nav-panel a:hover { color: var(--celadon-deep); text-decoration: underline; background: rgba(94, 125, 104, 0.1); }
.site .nav-panel a:active { transform: translateY(1px); }
.site .nav-panel a.active { background: rgba(196, 106, 69, 0.14); color: var(--ink); text-decoration: none; }
.site .nav-panel a:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 min-height: 44px;
 padding: 0 18px;
 border-radius: 12px;
 border: 1px solid transparent;
 font-weight: 700;
 letter-spacing: 0.01em;
 text-decoration: none !important;
 transition: transform .15s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease;
 appearance: none;
 -webkit-appearance: none;
}
.btn-clay { background: var(--clay); color: #fff !important; }
.btn-clay:hover { background: var(--clay-deep); transform: translateY(-1px); box-shadow: 0 8px 16px rgba(164, 83, 52, 0.25); }
.btn-ink { background: var(--ink); color: #F4EFE7 !important; }
.btn-ink:hover { background: #1a0e16; transform: translateY(-1px); }
.btn-line { background: transparent; color: #F4EFE7 !important; border-color: #6A564C; }
.btn-line:hover { border-color: var(--celadon-soft); transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--celadon); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(94, 125, 104, 0.2); }
.card {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 position: relative;
}
.section-night .card {
 background: var(--night-2);
 border-color: #3A2E34;
 box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
 color: #F4EFE7;
}
.card-hover { transition: transform .18s ease, box-shadow .18s ease; }
.card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.badge, .seal-tag {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 2px 10px;
 border-radius: 999px;
 border: 1px solid rgba(196, 106, 69, 0.45);
 background: rgba(196, 106, 69, 0.12);
 color: var(--clay-deep);
 font-size: 13px;
 font-weight: 700;
 line-height: 1.4;
}
.section-night .badge, .section-night .seal-tag { color: #E7C2B4; border-color: rgba(196, 106, 69, 0.55); background: rgba(196, 106, 69, 0.16); }
.seal {
 width: 44px;
 height: 44px;
 border: 1px dashed var(--clay);
 border-radius: 50%;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 color: var(--clay);
 font-size: 13px;
 font-weight: 700;
 flex: none;
 background: rgba(196, 106, 69, 0.08);
}
.page-kicker {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 color: var(--clay-deep);
 font-size: 13px;
 font-weight: 700;
 letter-spacing: 0.12em;
 margin-bottom: 12px;
}
.page-kicker i {
 width: 18px;
 height: 18px;
 border: 1px solid var(--clay);
 border-radius: 4px;
 transform: rotate(45deg);
 display: inline-block;
}
.page-head h1 { max-width: 12em; }
.page-head .lede { margin-top: 12px; max-width: 40em; }
.mosaic { display: grid; grid-template-columns: 1fr; gap: 16px; }
.tile { overflow: hidden; display: flex; flex-direction: column; min-height: 100%; }
.tile::before {
 content: "";
 position: absolute;
 z-index: 2;
 top: 10px;
 left: 10px;
 width: 16px;
 height: 16px;
 border-top: 1px solid var(--clay);
 border-left: 1px solid var(--clay);
 pointer-events: none;
}
.tile.is-on { outline: 2px solid var(--celadon); outline-offset: 3px; }
.cover {
 width: 100%;
 object-fit: cover;
 background: var(--night);
 aspect-ratio: 16 / 9;
}
.ratio-16 { aspect-ratio: 16 / 9; }
.ratio-11 { aspect-ratio: 1 / 1; }
.tile-body { padding: 16px 18px 18px; }
.tile-body h3 { margin-bottom: 8px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.date { color: var(--muted); font-size: 14px; }
.section-night .date { color: #C9BEB6; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 14px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--card);
 color: var(--ink) !important;
 font-weight: 700;
 box-shadow: var(--shadow);
}
.tag:hover { border-color: var(--celadon); background: rgba(94, 125, 104, 0.08); text-decoration: underline; }
.tag:focus-visible, .tag:focus { outline: 2px solid var(--celadon); outline-offset: 2px; }
.tag.is-on { background: rgba(196, 106, 69, 0.14); border-color: var(--clay); }
.vtime { list-style: none; margin: 0; padding: 0; max-width: 760px; }
.vtime li { display: grid; grid-template-columns: 44px 1fr; gap: 16px; position: relative; padding-bottom: 28px; }
.vtime li::before {
 content: "";
 position: absolute;
 left: 21px;
 top: 48px;
 bottom: 4px;
 width: 1px;
 background: #4A3C43;
}
.vtime li:last-child { padding-bottom: 0; }
.vtime li:last-child::before { display: none; }
.vtime h3 { margin-bottom: 6px; }
.qlist { display: flex; flex-direction: column; gap: 14px; max-width: 820px; }
.qitem { display: grid; grid-template-columns: 72px 1fr; gap: 16px; padding: 18px 18px; align-items: center; }
.qitem strong { display: block; color: var(--ink); margin-bottom: 4px; }
.hscroll {
 display: flex;
 gap: 16px;
 overflow-x: auto;
 scroll-snap-type: x mandatory;
 padding-bottom: 10px;
}
.hscroll::-webkit-scrollbar { height: 8px; }
.hscroll::-webkit-scrollbar-thumb { background: #4A3C43; border-radius: 99px; }
.read-card { min-width: min(300px, 82vw); scroll-snap-align: start; padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.read-card a { color: var(--celadon-soft); font-weight: 700; }
.two-col { display: grid; gap: 16px; }
.guard { padding: 22px 20px; min-height: 100%; }
.guard h3 { margin-bottom: 8px; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site-footer { background: var(--night); color: #D5CBC2; padding: 72px 0 36px; border-top: 1px solid #3A2E34; }
.footer-brand { font-weight: 700; font-size: 22px; color: #F4EFE7; margin-bottom: 28px; letter-spacing: -0.02em; }
.footer-grid { display: grid; gap: 28px; }
.site-footer h2 { color: #F4EFE7; font-size: 18px; margin-bottom: 12px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.site-footer a { color: var(--celadon-soft); }
.site-footer a:hover { color: #d7ebe0; }
.site-footer p { color: #C9BEB6; }
.copyright { margin-top: 28px; padding-top: 16px; border-top: 1px solid #3A2E34; font-size: 14px; color: #B7AEA6; }
@media (min-width: 768px) {
 .two-col, .footer-grid { grid-template-columns: 1fr 1fr; }
 .footer-grid { grid-template-columns: 1.1fr 1.4fr 0.8fr; }
 .mosaic { grid-template-columns: 1fr 1fr; }
 .tile-lg { grid-column: 1 / -1; }
}
@media (min-width: 1024px) {
 .section { padding: 92px 0; }
 .mosaic { grid-template-columns: 1fr 1fr; gap: 18px; }
 .tile-lg { grid-column: 1 / -1; }
 .tile-lg .tile-body { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 8px 28px; align-items: end; }
 .tile-lg .tile-body h3 { grid-column: 1; }
 .tile-lg .tile-body p { grid-column: 1; }
 .tile-lg .meta-row { grid-column: 2; grid-row: 1 / span 2; align-self: end; justify-content: flex-end; }
}
@media (max-width: 767px) {
 .section { padding: 48px 0; }
 .menu-toggle { display: inline-flex; align-items: center; }
 .nav-panel {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  flex-direction: column;
  align-items: stretch;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--nav-radius);
  box-shadow: var(--shadow);
  padding: 8px;
  z-index: 60;
 }
 .nav-panel.is-open { display: flex; }
 .site .nav-panel a { min-height: 44px; display: flex; align-items: center; width: 100%; }
 .qitem { grid-template-columns: 44px 1fr; }
 .tile-lg .meta-row { justify-content: flex-start; }
}
@media (max-width: 520px) {
 .brand { font-size: 14px; }
 .page-head h1 { font-size: 30px; }
 .read-card { min-width: 86vw; }
}