/* roulang page: index */
:root {
  --plum: #5C2A4A;
  --plum-deep: #431E36;
  --orange: #E25B3A;
  --orange-deep: #C4472C;
  --paper: #F6F1EA;
  --ink: #1C1418;
  --blush: #F3D6C8;
  --card: #FFFBF7;
  --muted: rgba(28, 20, 24, .72);
  --line: rgba(28, 20, 24, .12);
  --radius: 16px;
  --shadow: 0 10px 28px rgba(28, 20, 24, .06);
  --header-h: 74px;
  --dock-h: 64px;
  --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: var(--plum); text-underline-offset: 3px; }
p { margin: 0 0 1.05em; }
h1, h2, h3, h4 { line-height: 1.35; color: var(--plum); font-weight: 700; margin: 0; }
ul, ol { margin: 0; padding: 0; }
::selection { background: var(--blush); color: var(--ink); }
.grid-container { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(90deg, #5C2A4A 0%, #7A3E3A 52%, #C46A3A 100%);
  box-shadow: 0 8px 20px rgba(28, 20, 24, .16);
}
.header-bar {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: .02em;
  min-width: 0;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--orange);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 13px;
  flex: 0 0 auto;
}
.brand-name { font-size: 16px; white-space: nowrap; }
.nav-toggle {
  display: none;
  border: 1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.12);
  color: #fff;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  color: #fff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
  transition: background .2s ease, transform .2s ease;
}
.site-nav a:hover { background: rgba(255,255,255,.16); }
.site-nav a:active { transform: translateY(0); }
.site-nav a[aria-current="page"] { background: rgba(255,255,255,.2); box-shadow: inset 0 -2px 0 #fff; }
.nav-cta, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-solid, .site-nav a.nav-cta {
  background: var(--orange);
  color: #fff;
  box-shadow: none;
}
.btn-solid:hover, .site-nav a.nav-cta:hover { background: var(--orange-deep); color: #fff; transform: translateY(-2px); }
.btn-solid:active, .site-nav a.nav-cta:active { transform: translateY(0); }
.btn-line {
  background: transparent;
  color: var(--plum);
  border-color: rgba(92, 42, 74, .35);
}
.btn-line:hover { background: var(--plum); color: #fff; transform: translateY(-2px); }
.btn-line:active { transform: translateY(0); }
.hero { padding: 72px 0 80px; background: linear-gradient(180deg, #f8f2ea 0%, #f3d6c8 100%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 32px; align-items: center; }
.age-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.age-pill, .badge, .chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}
.age-pill { background: var(--plum); color: #fff; }
.badge { background: var(--orange); color: #fff; }
.chip { background: rgba(92,42,74,.08); color: var(--plum); }
.brand-line { color: var(--orange-deep); font-weight: 700; margin-bottom: 8px; }
.hero h1 { font-size: 42px; letter-spacing: .01em; margin-bottom: 12px; }
.hero-sub { font-size: 18px; color: var(--ink); margin-bottom: 12px; }
.hero-lead { color: var(--muted); max-width: 42em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0; }
.node-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.node {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 12px;
  min-width: 128px;
  box-shadow: var(--shadow);
}
.node b { display: block; color: var(--plum); font-size: 14px; }
.node span { color: var(--muted); font-size: 13px; }
.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.feature-ribbon {
  position: absolute;
  top: 16px;
  left: -36px;
  transform: rotate(-18deg);
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  padding: 4px 48px;
  z-index: 2;
}
.feature-cover {
  min-height: 280px;
  margin: 14px;
  border-radius: var(--radius);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 18px;
  color: #fff;
  background:
    radial-gradient(circle at 18% 20%, rgba(226,91,58,.5), transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(255,255,255,.18), transparent 36%),
    linear-gradient(155deg, #5C2A4A, #8A4638 58%, #E7C3B2);
}
.feature-cover strong { font-size: 40px; line-height: 1.1; }
.feature-cover em { font-style: normal; display: block; opacity: .9; }
.corner-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  background: #fff;
  color: var(--orange-deep);
  border-radius: 12px 12px 12px 4px;
  padding: 6px 10px;
  font-weight: 700;
}
.feature-meta { display: flex; justify-content: space-between; gap: 12px; padding: 4px 18px 18px; }
.feature-meta b { color: var(--plum); display: block; }
.feature-meta span { color: var(--muted); font-size: 14px; }
.section { padding: var(--pad) 0; }
.section-a { background: #fffdfb; }
.section-b { background: var(--blush); }
.section-c { background: var(--paper); }
.section-head { margin-bottom: 28px; max-width: 760px; }
.section-kicker { color: var(--orange-deep); font-weight: 700; font-size: 13px; letter-spacing: .08em; margin-bottom: 6px; }
.section h2 { font-size: 30px; margin-bottom: 10px; }
.section-desc { color: var(--muted); margin: 0; }
.track { display: grid; grid-template-columns: 1.4fr 1fr .78fr; gap: 16px; }
.track-item, .clip-card, .news-card, .entry-card, .quote, .scene-band, .article-list a, .compare-card, .step {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.track-item { padding: 22px; }
.track-item:hover, .clip-card:hover, .news-card:hover, .entry-card:hover, .article-list a:hover, .step:hover {
  transform: translateY(-2px);
  border-color: rgba(226, 91, 58, .45);
}
.track-item, .clip-card, .news-card, .entry-card, .article-list a, .step { transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.track-item:active, .clip-card:active, .news-card:active { transform: translateY(0); }
.track-item h3, .clip-card h3, .news-card h3, .entry-card h3, .scene-band h3 { font-size: 20px; margin: 8px 0; }
.track-item p, .clip-card p, .news-card p, .entry-card p, .scene-band p, .quote p { color: var(--muted); margin: 0; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { padding: 18px; min-height: 180px; }
.step i { font-style: normal; color: var(--orange); font-weight: 700; }
.entry-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; }
.entry-a { display: grid; grid-template-columns: 1.2fr .8fr; min-height: 250px; overflow: hidden; }
.entry-copy, .entry-b { padding: 22px; }
.entry-visual {
  background:
    linear-gradient(160deg, rgba(92,42,74,.15), rgba(226,91,58,.28)),
    repeating-linear-gradient(90deg, rgba(92,42,74,.08) 0 8px, transparent 8px 16px);
}
.entry-b { background: #fff7f2; display: flex; flex-direction: column; justify-content: space-between; }
.entry-b ol { margin: 8px 0 16px 18px; color: var(--ink); }
.text-link { color: var(--plum); font-weight: 700; }
.shelf-head, .more-row { display: flex; justify-content: space-between; gap: 12px; align-items: end; }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.shelf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.clip-card { padding: 14px; }
.cover-mini {
  height: 112px;
  border-radius: 12px;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-end;
  padding: 10px;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(145deg, #5C2A4A, #C46A3A);
}
.clip-card:nth-child(2n) .cover-mini { background: linear-gradient(145deg, #7A3E4E, #E7B39A); }
.clip-card:nth-child(3n) .cover-mini { background: linear-gradient(160deg, #431E36, #E25B3A); }
.update-line { margin-top: 8px; color: var(--orange-deep); font-size: 13px; font-weight: 700; }
.more-row { margin-top: 18px; }
.timeline { display: grid; gap: 0; border-left: 2px solid rgba(226,91,58,.45); margin-left: 10px; }
.time-item { position: relative; padding: 0 0 22px 22px; }
.time-item::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  position: absolute;
  left: -7px;
  top: 6px;
}
.time-item strong { color: var(--plum); }
.device-list { display: grid; gap: 16px; }
.device-row { display: grid; grid-template-columns: 92px 1fr; gap: 12px; align-items: center; }
.device-name { font-weight: 700; color: var(--plum); }
.bar-track { height: 14px; background: rgba(92,42,74,.08); border-radius: 999px; overflow: hidden; border: 1px solid var(--line); }
.bar-fill { display: block; height: 100%; background: linear-gradient(90deg, #5C2A4A, #E25B3A); border-radius: inherit; }
.device-note { grid-column: 2; color: var(--muted); margin-top: -6px; }
.feedback-wrap { display: grid; grid-template-columns: 1.3fr .7fr; gap: 16px; }
.quote-list { display: grid; gap: 12px; }
.quote { padding: 16px 18px; }
.quote b { color: var(--plum); }
.stat-row { display: grid; gap: 12px; }
.stat { background: var(--plum); color: #fff; border-radius: var(--radius); padding: 18px; }
.stat b { display: block; font-size: 32px; color: #fff; }
.stat span { color: rgba(255,255,255,.82); }
.compare { display: grid; grid-template-columns: .78fr 1.22fr; gap: 16px; }
.compare-card { padding: 22px; }
.compare-weak { background: #f7f1ea; }
.compare-strong { background: #fff; border-width: 2px; border-color: rgba(226,91,58,.45); }
.compare-card li { list-style: none; padding: 10px 0; border-bottom: 1px solid var(--line); }
.news-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 14px; }
.news-wide { grid-row: span 1; padding: 22px; background: var(--plum); color: #fff; border: 0; }
.news-wide h3, .news-wide p, .news-wide a { color: #fff; }
.news-card { padding: 16px; display: flex; flex-direction: column; justify-content: space-between; min-height: 210px; }
.news-card a, .article-list a { text-decoration: underline; }
.scene-stack { display: grid; gap: 12px; }
.scene-band { padding: 18px; display: grid; grid-template-columns: 180px 1fr; gap: 16px; align-items: center; }
.mini-row { display: flex; flex-wrap: wrap; gap: 8px; }
.faq-list { display: grid; gap: 10px; }
details { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 16px; }
summary { cursor: pointer; list-style: none; min-height: 56px; display: flex; align-items: center; justify-content: space-between; font-weight: 700; color: var(--plum); }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--orange); font-size: 22px; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); padding-bottom: 14px; }
.assure-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.assure-item { background: #fff; border: 1px dashed rgba(92,42,74,.28); border-radius: var(--radius); padding: 16px; }
.assure-item strong { color: var(--plum); display: block; }
.article-list { display: grid; gap: 10px; }
.article-list a { display: flex; justify-content: space-between; gap: 12px; padding: 16px 18px; color: var(--plum); }
.close-band { background: #2A1522; padding: 72px 0; }
.close-band h2, .close-band p { color: #F6F1EA; }
.close-inner { display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.site-footer { background: #1C1418; color: rgba(255,255,255,.86); padding: 42px 0 128px; }
.footer-grid { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.site-footer a { color: #fff; }
.site-footer strong { color: #fff; font-size: 18px; display: block; margin-bottom: 8px; }
.footer-links { display: flex; gap: 16px; }
.copyright { margin-top: 18px; color: rgba(255,255,255,.7); }
.dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  background: #fff;
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 24px rgba(28,20,24,.08);
  padding-bottom: env(safe-area-inset-bottom);
}
.dock-inner { min-height: var(--dock-h); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dock strong { color: var(--plum); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 1100px) {
  .shelf-grid { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-wide { grid-column: 1 / -1; }
}
@media (max-width: 1024px) {
  :root { --pad: 64px; }
  .hero h1 { font-size: 34px; }
  .hero-grid, .entry-grid, .entry-a, .feedback-wrap, .compare, .scene-band, .track { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .assure-bar { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --pad: 48px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 16px;
    background: linear-gradient(180deg, #5C2A4A, #8A4638);
  }
  .site-nav.is-open { display: flex; }
  .header-bar { position: relative; }
  .shelf-grid, .steps { grid-template-columns: 1fr 1fr; }
  .close-inner, .footer-grid, .shelf-head { flex-direction: column; align-items: flex-start; }
  .device-row { grid-template-columns: 72px 1fr; }
}
@media (max-width: 520px) {
  :root { --pad: 44px; }
  .hero { padding: 42px 0 48px; }
  .hero h1 { font-size: 28px; }
  .section h2 { font-size: 24px; }
  .shelf-grid, .steps, .assure-bar, .news-grid { grid-template-columns: 1fr; }
  .brand-name { font-size: 14px; max-width: 46vw; overflow: hidden; text-overflow: ellipsis; }
  .dock-inner { min-height: 56px; }
  .feature-cover { min-height: 210px; }
  .feature-cover strong { font-size: 30px; }
}

/* roulang page: category2 */
:root {
 --plum: #5C2A4A;
 --plum-deep: #431E36;
 --orange: #E25B3A;
 --orange-deep: #C4472C;
 --paper: #F6F1EA;
 --ink: #1C1418;
 --blush: #F3D6C8;
 --card: #FFFBF7;
 --muted: rgba(28, 20, 24, .72);
 --line: rgba(28, 20, 24, .12);
 --radius: 16px;
 --shadow: 0 10px 28px rgba(28, 20, 24, .06);
 --header-h: 74px;
 --dock-h: 64px;
 --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 color: var(--ink);
 background: var(--paper);
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.8;
 text-rendering: optimizeLegibility;
 padding-bottom: calc(var(--dock-h) + env(safe-area-inset-bottom) + 12px);
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
p { margin: 0 0 1.1em; }
h1, h2, h3, h4 { color: var(--plum); line-height: 1.35; margin: 0 0 .55em; }
a { color: var(--plum); text-underline-offset: 3px; }
.grid-container { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }
a:focus-visible, button:focus-visible, summary:focus-visible {
 outline: 2px solid var(--orange);
 outline-offset: 3px;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: linear-gradient(90deg, #5C2A4A 0%, #7A3E3A 52%, #C46A3A 100%);
 box-shadow: 0 8px 20px rgba(28, 20, 24, .16);
}
.header-bar {
 min-height: var(--header-h);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 18px;
}
.brand {
 display: flex;
 align-items: center;
 gap: 10px;
 color: #fff;
 text-decoration: none;
 font-weight: 700;
 letter-spacing: .02em;
 min-width: 0;
}
.brand-mark {
 width: 36px;
 height: 36px;
 border-radius: 12px;
 background: var(--orange);
 color: #fff;
 display: grid;
 place-items: center;
 font-size: 13px;
 flex: 0 0 auto;
}
.brand-name { font-size: 16px; white-space: nowrap; }
.nav-toggle {
 display: none;
 border: 1px solid rgba(255,255,255,.35);
 background: rgba(255,255,255,.12);
 color: #fff;
 border-radius: 999px;
 padding: 8px 14px;
 cursor: pointer;
}
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
 color: #fff;
 text-decoration: none;
 padding: 8px 12px;
 border-radius: 999px;
 transition: background .2s ease, transform .2s ease;
}
.site-nav a:hover { background: rgba(255,255,255,.16); }
.site-nav a:active { transform: translateY(0); }
.site-nav a[aria-current="page"] { background: rgba(255,255,255,.2); box-shadow: inset 0 -2px 0 #fff; }
.nav-cta, .btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 42px;
 padding: 0 18px;
 border-radius: 999px;
 border: 1px solid transparent;
 text-decoration: none;
 font-weight: 700;
 cursor: pointer;
 transition: background .2s ease, color .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-solid, .site-nav a.nav-cta {
 background: var(--orange);
 color: #fff;
 box-shadow: none;
}
.btn-solid:hover, .site-nav a.nav-cta:hover { background: var(--orange-deep); color: #fff; transform: translateY(-2px); }
.btn-solid:active, .site-nav a.nav-cta:active { transform: translateY(0); }
.btn-line {
 background: transparent;
 color: var(--plum);
 border-color: rgba(92, 42, 74, .35);
}
.btn-line:hover { background: var(--plum); color: #fff; transform: translateY(-2px); }
.btn-line:active { transform: translateY(0); }
.age-pill, .badge, .chip {
 display: inline-flex;
 align-items: center;
 border-radius: 999px;
 padding: 3px 10px;
 font-size: 13px;
 font-weight: 700;
 line-height: 1.6;
}
.age-pill { background: var(--plum); color: #fff; }
.badge { background: var(--orange); color: #fff; }
.chip { background: rgba(92,42,74,.08); color: var(--plum); }
.section { padding: var(--pad) 0; }
.section-a { background: #fffdfb; }
.section-b { background: var(--blush); }
.section-c { background: var(--paper); }
.section-head { margin-bottom: 28px; max-width: 760px; }
.section-kicker { color: var(--orange-deep); font-weight: 700; font-size: 13px; letter-spacing: .08em; margin-bottom: 6px; }
.section h2 { font-size: 30px; margin-bottom: 10px; }
.section-desc { color: var(--muted); margin: 0; }
.page-head {
 display: grid;
 grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr);
 gap: 28px;
 align-items: end;
}
.page-head h1 { font-size: 40px; margin-bottom: 12px; }
.lead { color: var(--muted); max-width: 40em; margin-bottom: 0; }
.index-band {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 16px;
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
 align-content: center;
}
.index-band a { text-decoration: none; }
.mix {
 display: grid;
 grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
 gap: 18px;
 align-items: start;
}
.feature-card, .clip-card, .news-card, .quote, .step, .device-card, .bound-card, .article-list a {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.feature-card { overflow: hidden; position: relative; }
.feature-cover {
 min-height: 280px;
 margin: 14px;
 border-radius: var(--radius);
 position: relative;
 display: flex;
 align-items: flex-end;
 padding: 18px;
 color: #fff;
 background:
 radial-gradient(circle at 18% 20%, rgba(226,91,58,.5), transparent 42%),
 radial-gradient(circle at 82% 78%, rgba(255,255,255,.18), transparent 36%),
 linear-gradient(155deg, #5C2A4A, #8A4638 58%, #E7C3B2);
}
.feature-cover strong { font-size: 34px; line-height: 1.2; }
.feature-cover em { font-style: normal; display: block; opacity: .92; font-size: 15px; }
.corner-tag {
 position: absolute;
 top: 14px;
 right: 14px;
 background: #fff;
 color: var(--orange-deep);
 border-radius: 12px 12px 12px 4px;
 padding: 6px 10px;
 font-weight: 700;
}
.feature-meta, .clip-body { display: flex; justify-content: space-between; gap: 12px; padding: 4px 18px 18px; }
.feature-meta b, .clip-body b { color: var(--plum); display: block; }
.feature-meta span, .clip-body span, .muted { color: var(--muted); font-size: 14px; }
.stack { display: grid; gap: 12px; }
.clip-card { padding: 16px 16px 8px; }
.clip-card:hover, .news-card:hover, .article-list a:hover, .step:hover, .device-card:hover {
 transform: translateY(-2px);
 border-color: rgba(226, 91, 58, .45);
}
.clip-top { display: flex; justify-content: space-between; gap: 10px; align-items: center; margin-bottom: 8px; }
.more-row { margin-top: 16px; }
.step-row, .device-row, .quote-row, .article-grid, .bound-row {
 display: grid;
 gap: 16px;
}
.step-row { grid-template-columns: 1.2fr .9fr .9fr; }
.step { padding: 22px; }
.step b { display: block; font-size: 18px; margin: 8px 0; }
.num {
 width: 36px;
 height: 36px;
 border-radius: 12px;
 background: var(--blush);
 color: var(--plum);
 display: grid;
 place-items: center;
 font-weight: 700;
}
.device-row { grid-template-columns: repeat(3, 1fr); }
.device-card { padding: 20px; }
.bar {
 height: 8px;
 border-radius: 999px;
 background: rgba(92,42,74,.1);
 overflow: hidden;
 margin: 10px 0 6px;
}
.bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--plum), var(--orange)); border-radius: inherit; }
.quote-row { grid-template-columns: 1.4fr .8fr .8fr; }
.quote { padding: 20px; }
.quote p { margin-bottom: 10px; }
.stat {
 background: var(--plum);
 color: #fff;
 border-radius: var(--radius);
 padding: 20px;
 min-height: 150px;
 display: flex;
 flex-direction: column;
 justify-content: flex-end;
}
.stat strong { font-size: 32px; line-height: 1.1; }
.article-grid { grid-template-columns: 1fr 1fr; }
.article-list a {
 display: block;
 padding: 18px 18px 14px;
 text-decoration: none;
 color: inherit;
}
.article-list a:hover { color: var(--plum); }
.article-list small { color: var(--orange-deep); font-weight: 700; }
.bound-row { grid-template-columns: repeat(4, 1fr); }
.bound-card { padding: 16px; }
.bound-card strong { display: block; margin-bottom: 6px; }
.close-band {
 background: linear-gradient(100deg, var(--plum-deep), #7A3E3A 70%);
 color: #fff;
 border-radius: var(--radius);
 padding: 28px;
 display: flex;
 justify-content: space-between;
 gap: 18px;
 align-items: center;
}
.close-band h2, .close-band p { color: #fff; }
.close-band p { margin: 0; opacity: .9; }
.site-footer {
 background: #24161C;
 color: #fff;
 padding: 36px 0 28px;
}
.footer-grid { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.site-footer p { color: rgba(255,255,255,.82); }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: #fff; }
.copyright { margin: 18px 0 0; font-size: 14px; color: rgba(255,255,255,.7); }
.dock {
 position: fixed;
 left: 12px;
 right: 12px;
 bottom: calc(8px + env(safe-area-inset-bottom));
 z-index: 50;
 min-height: var(--dock-h);
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 999px;
 box-shadow: 0 12px 30px rgba(28,20,24,.14);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 padding: 8px 8px 8px 18px;
}
.dock b { color: var(--plum); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.is-extra[hidden] { display: none !important; }
@media (max-width: 1024px) {
 :root { --pad: 64px; }
 .page-head, .mix, .step-row, .quote-row { grid-template-columns: 1fr 1fr; }
 .bound-row { grid-template-columns: 1fr 1fr; }
 .page-head h1 { font-size: 34px; }
}
@media (max-width: 768px) {
 :root { --pad: 48px; --header-h: 64px; }
 .nav-toggle { display: inline-flex; }
 .site-nav {
 display: none;
 position: absolute;
 left: 16px;
 right: 16px;
 top: calc(var(--header-h) - 6px);
 flex-direction: column;
 align-items: stretch;
 background: #5C2A4A;
 border-radius: 16px;
 padding: 10px;
 box-shadow: var(--shadow);
 }
 .site-nav.is-open { display: flex; }
 .header-bar { position: relative; }
 .page-head, .mix, .step-row, .device-row, .quote-row, .article-grid, .bound-row { grid-template-columns: 1fr; }
 .brand-name { font-size: 14px; }
 .close-band, .footer-grid { flex-direction: column; align-items: flex-start; }
 .section h2 { font-size: 26px; }
}
@media (max-width: 520px) {
 :root { --pad: 44px; }
 .page-head h1 { font-size: 28px; }
 .feature-cover { min-height: 210px; }
 .feature-cover strong { font-size: 26px; }
 .dock { border-radius: 16px; padding-left: 12px; }
 .dock b { font-size: 13px; max-width: 58%; }
 .grid-container { width: min(1120px, calc(100% - 20px)); }
}

/* roulang page: category1 */
:root {
 --plum: #5C2A4A;
 --plum-deep: #431E36;
 --orange: #E25B3A;
 --orange-deep: #C4472C;
 --paper: #F6F1EA;
 --ink: #1C1418;
 --blush: #F3D6C8;
 --card: #FFFBF7;
 --muted: rgba(28, 20, 24, .72);
 --line: rgba(28, 20, 24, .12);
 --radius: 16px;
 --shadow: 0 10px 28px rgba(28, 20, 24, .06);
 --header-h: 74px;
 --dock-h: 64px;
 --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 color: var(--ink);
 background: var(--paper);
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.8;
 text-rendering: optimizeLegibility;
 padding-bottom: calc(var(--dock-h) + 36px);
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: var(--plum); text-decoration-thickness: 1px; text-underline-offset: 3px; }
p { margin: 0 0 1.9em; }
h1, h2, h3, h4 { color: var(--plum); line-height: 1.35; font-weight: 700; margin: 0 0 .55em; }
.grid-container { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }
a:focus-visible, button:focus-visible, summary:focus-visible {
 outline: 2px solid var(--orange);
 outline-offset: 3px;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: linear-gradient(90deg, #5C2A4A 0%, #7A3E3A 52%, #C46A3A 100%);
 box-shadow: 0 8px 20px rgba(28, 20, 24, .16);
}
.header-bar {
 min-height: var(--header-h);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 18px;
 position: relative;
}
.brand {
 display: flex;
 align-items: center;
 gap: 10px;
 color: #fff;
 text-decoration: none;
 font-weight: 700;
 letter-spacing: .02em;
 min-width: 0;
}
.brand-mark {
 width: 36px;
 height: 36px;
 border-radius: 12px;
 background: var(--orange);
 color: #fff;
 display: grid;
 place-items: center;
 font-size: 13px;
 flex: 0 0 auto;
}
.brand-name { font-size: 16px; white-space: nowrap; }
.nav-toggle {
 display: none;
 border: 1px solid rgba(255,255,255,.35);
 background: rgba(255,255,255,.12);
 color: #fff;
 border-radius: 999px;
 padding: 8px 14px;
 cursor: pointer;
}
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
 color: #fff;
 text-decoration: none;
 padding: 8px 12px;
 border-radius: 999px;
 transition: background .2s ease, transform .2s ease;
}
.site-nav a:hover { background: rgba(255,255,255,.16); }
.site-nav a:active { transform: translateY(0); }
.site-nav a[aria-current="page"] { background: rgba(255,255,255,.2); box-shadow: inset 0 -2px 0 #fff; }
.nav-cta, .btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 42px;
 padding: 0 18px;
 border-radius: 999px;
 border: 1px solid transparent;
 text-decoration: none;
 font-weight: 700;
 cursor: pointer;
 transition: background .2s ease, color .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-solid, .site-nav a.nav-cta { background: var(--orange); color: #fff; }
.btn-solid:hover, .site-nav a.nav-cta:hover { background: var(--orange-deep); color: #fff; transform: translateY(-2px); }
.btn-solid:active, .site-nav a.nav-cta:active { transform: translateY(0); }
.btn-line { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-line:hover { background: #fff; color: var(--plum); transform: translateY(-2px); }
.btn-line:active { transform: translateY(0); }
.section { padding: var(--pad) 0; }
.section-a { background: #fffdfb; }
.section-b { background: var(--blush); }
.section-c { background: var(--paper); }
.section-head { margin-bottom: 28px; max-width: 760px; }
.section-kicker { color: var(--orange-deep); font-weight: 700; font-size: 13px; letter-spacing: .08em; margin-bottom: 6px; }
.section h2 { font-size: 30px; }
.section-desc { color: var(--muted); margin: 0; }
.age-pill, .badge, .chip {
 display: inline-flex;
 align-items: center;
 border-radius: 999px;
 padding: 3px 10px;
 font-size: 13px;
 font-weight: 700;
 line-height: 1.6;
}
.age-pill { background: var(--plum); color: #fff; }
.badge { background: var(--orange); color: #fff; }
.chip { background: rgba(92,42,74,.08); color: var(--plum); border: 0; }
.chip.is-on { background: var(--plum); color: #fff; }
.page-split { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: 28px; align-items: stretch; }
.page-copy h1 { font-size: 40px; letter-spacing: .01em; }
.lead { color: var(--muted); max-width: 40em; margin-bottom: 0; }
.age-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.summary-card, .clip-card, .news-card, .timeline-item, .device-card, .expand-box {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.summary-card { padding: 22px; }
.summary-card h2 { font-size: 20px; }
.stat-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.stat-list li { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.stat-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.stat-list span { color: var(--muted); }
.stat-list b { color: var(--plum); }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.sort-note { margin-left: auto; color: var(--muted); font-size: 14px; }
.shelf { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.clip-card { overflow: hidden; transition: transform .2s ease, border-color .2s ease; }
.clip-card:hover { transform: translateY(-2px); border-color: rgba(226, 91, 58, .45); }
.cover {
 min-height: 148px;
 margin: 12px 12px 0;
 border-radius: 14px;
 position: relative;
 display: flex;
 align-items: flex-end;
 padding: 14px;
 color: #fff;
 background:
  radial-gradient(circle at 18% 20%, rgba(226,91,58,.5), transparent 42%),
  linear-gradient(155deg, #5C2A4A, #8A4638 58%, #E7C3B2);
}
.cover strong { font-size: 22px; line-height: 1.3; }
.corner-tag {
 position: absolute;
 top: 12px;
 right: 12px;
 background: #fff;
 color: var(--orange-deep);
 border-radius: 12px 12px 12px 4px;
 padding: 4px 8px;
 font-weight: 700;
 font-size: 13px;
}
.clip-body { padding: 14px 16px 16px; }
.clip-body h3 { font-size: 18px; }
.clip-body p { color: var(--muted); margin: 0; font-size: 14px; }
.meta-row { display: flex; justify-content: space-between; gap: 8px; margin-top: 10px; color: var(--plum); font-size: 13px; font-weight: 700; }
.expand-box { padding: 22px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: center; }
.mini-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.mini-list li { padding-left: 14px; position: relative; }
.mini-list li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--orange); position: absolute; left: 0; top: .7em; }
.text-more { color: var(--plum); font-weight: 700; white-space: nowrap; }
.text-more:hover { color: var(--orange-deep); }
.timeline { display: grid; gap: 0; border-left: 2px solid rgba(92,42,74,.2); margin-left: 8px; }
.timeline-item { margin: 0 0 14px 18px; padding: 16px 18px; position: relative; }
.timeline-item::before {
 content: "";
 width: 12px;
 height: 12px;
 border-radius: 50%;
 background: var(--orange);
 position: absolute;
 left: -25px;
 top: 22px;
}
.timeline-item time { color: var(--orange-deep); font-weight: 700; font-size: 14px; }
.device-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.device-card { padding: 18px; }
.bar { height: 8px; border-radius: 999px; background: rgba(92,42,74,.1); margin: 12px 0; overflow: hidden; }
.bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--plum), var(--orange)); border-radius: inherit; }
.article-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.article-list a {
 display: block;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 18px;
 text-decoration: none;
 color: var(--plum);
 font-weight: 700;
 transition: transform .2s ease, border-color .2s ease;
}
.article-list a:hover { transform: translateY(-2px); border-color: rgba(226, 91, 58, .45); }
.article-list a span { display: block; margin-top: 6px; color: var(--muted); font-weight: 400; font-size: 14px; }
.close-band {
 background: var(--plum-deep);
 color: #fff;
 border-radius: var(--radius);
 padding: 32px;
 display: flex;
 justify-content: space-between;
 gap: 18px;
 align-items: center;
}
.close-band h2, .close-band p { color: #fff; }
.close-band p { margin: 0; opacity: .88; }
.close-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.site-footer { background: #24161d; color: #fff; padding: 36px 0 28px; }
.site-footer a { color: #fff; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.footer-links { display: flex; gap: 16px; }
.copyright { margin: 18px 0 0; color: rgba(255,255,255,.72); font-size: 14px; }
.dock {
 position: fixed;
 left: 12px;
 right: 12px;
 bottom: 12px;
 z-index: 50;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 min-height: var(--dock-h);
 padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
 background: var(--plum-deep);
 color: #fff;
 border-radius: 16px;
 box-shadow: 0 10px 24px rgba(28,20,24,.2);
}
.dock b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 1024px) {
 :root { --pad: 64px; }
 .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); }
 .page-copy h1 { font-size: 34px; }
}
@media (max-width: 768px) {
 :root { --pad: 48px; }
 .nav-toggle { display: inline-flex; }
 .site-nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  flex-direction: column;
  align-items: stretch;
  background: linear-gradient(180deg, #5C2A4A, #7A3E3A);
  padding: 10px 16px 16px;
 }
 .site-nav.is-open { display: flex; }
 .page-split, .device-grid, .article-list, .expand-box, .close-band, .footer-grid { grid-template-columns: 1fr; display: grid; }
 .sort-note, .close-actions { margin-left: 0; }
 .shelf { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
 :root { --pad: 44px; }
 .brand-name { font-size: 14px; }
 .page-copy h1, .section h2 { font-size: 26px; }
 .shelf { grid-template-columns: 1fr; }
 .dock { border-radius: 12px; }
 .footer-links { flex-wrap: wrap; }
}