/* roulang page: index */
:root {
  --blue: #2F6FED;
  --blue-deep: #1E56C8;
  --mist: #5E738C;
  --bg: #F3F6FA;
  --card: #FFFFFF;
  --ink: #1B2430;
  --muted: #5C6B7A;
  --line: #E3EAF2;
  --coral: #E07A3D;
  --coral-deep: #C8642C;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 10px 28px rgba(27,36,48,.08);
  --shadow-hover: 0 16px 34px rgba(27,36,48,.12);
  --wrap: 1120px;
  --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  padding-bottom: 96px;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-deep); }
button, input { font-family: inherit; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.wrap { width: min(var(--wrap), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.nav-bar {
  min-height: 84px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  position: relative;
}
.nav-side { display: flex; align-items: center; gap: 8px; }
.nav-left { justify-content: flex-start; }
.nav-right { justify-content: flex-end; }
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  color: var(--ink);
  font-weight: 600;
  border-radius: 10px;
}
.nav-link:hover { background: #F4F7FC; color: var(--blue); }
.nav-link.active { color: var(--blue); background: #EAF1FE; }
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--ink);
  line-height: 1.25;
  min-width: 220px;
}
.brand:hover { color: var(--ink); }
.brand-line { font-size: 18px; font-weight: 700; letter-spacing: .02em; }
.brand-sub { margin-top: 4px; font-size: 13px; font-weight: 700; color: var(--blue); }
.menu-btn {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.mobile-panel { background: #fff; border-top: 1px solid var(--line); padding: 8px 0 16px; }
.mobile-link {
  display: block;
  padding: 12px 4px;
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.mobile-link.active { color: var(--blue); }
.hero { background: #fff; padding: 84px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .08em;
}
h1 {
  margin: 0 0 18px;
  font-size: 42px;
  line-height: 1.28;
  font-weight: 700;
  color: var(--ink);
}
.hero-lead { margin: 0 0 28px; color: var(--muted); font-size: 17px; line-height: 1.85; max-width: 560px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-coral, .btn-main, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-coral { background: var(--coral); color: #fff; }
.btn-coral:hover { background: var(--coral-deep); color: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
.btn-main { background: var(--blue); color: #fff; }
.btn-main:hover { background: var(--blue-deep); color: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-ghost:hover { background: #F4F8FF; color: var(--blue-deep); }
.stage {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.stage-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #EAF1FE;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.chip.soft { background: #F4F7FB; color: var(--mist); }
.stage-screen {
  position: relative;
  height: 280px;
  border-radius: 14px;
  background: #E7EEF8;
  border: 1px solid #D5E1F0;
  overflow: hidden;
}
.stage-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.15), rgba(27,36,48,.18));
}
.play-mark {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}
.play-mark i {
  width: 0;
  height: 0;
  border-left: 18px solid var(--blue);
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}
.stage-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  color: var(--ink);
  background: rgba(255,255,255,.92);
  border-radius: 12px;
  padding: 10px 12px;
}
.stage-caption strong { display: block; font-size: 15px; }
.stage-caption span { color: var(--muted); font-size: 13px; }
.timeline { margin-top: 14px; height: 8px; background: #E7EEF7; border-radius: 99px; overflow: hidden; }
.timeline b { display: block; width: 62%; height: 100%; background: var(--blue); border-radius: 99px; }
.stage-meta { display: flex; justify-content: space-between; margin-top: 8px; color: var(--mist); font-size: 13px; }
.section { padding: var(--pad) 0; background: #fff; }
.section-alt { background: var(--bg); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2, .close-band h2 {
  margin: 0 0 12px;
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
}
.section-lead { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.sell-grid { display: grid; grid-template-columns: 1.45fr .85fr; gap: 20px; align-items: stretch; }
.sell-side { display: grid; gap: 20px; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 30px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.panel:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.panel h3 { margin: 8px 0 10px; font-size: 22px; font-weight: 700; line-height: 1.4; }
.panel p { margin: 0; color: var(--muted); line-height: 1.8; }
.idx { color: var(--blue); font-weight: 700; font-size: 13px; }
.sell-main { min-height: 100%; background: #fff; }
.entry-grid { display: grid; grid-template-columns: 1.15fr .92fr .98fr; gap: 20px; align-items: start; }
.entry-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  color: var(--ink);
  transition: transform .2s ease, box-shadow .2s ease;
}
.entry-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color: var(--ink); }
.entry-card.tall { min-height: 340px; }
.entry-card.mid { min-height: 260px; margin-top: 28px; }
.entry-card.low { min-height: 300px; }
.entry-card h3 { margin: 12px 0; font-size: 24px; font-weight: 700; }
.entry-card p { margin: 0; color: var(--muted); }
.more-text { margin-top: 18px; color: var(--blue); font-weight: 700; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; position: relative; }
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.step-no {
  width: 36px; height: 36px; border-radius: 10px;
  background: #EAF1FE; color: var(--blue);
  display: grid; place-items: center; font-weight: 700; margin-bottom: 12px;
}
.mock {
  height: 92px; border-radius: 12px; background: #F4F7FB; border: 1px dashed #D5E0EC;
  margin-bottom: 14px; padding: 12px; color: var(--mist); font-size: 13px;
}
.mock b { display: block; color: var(--ink); font-size: 14px; margin-bottom: 6px; }
.bar-mini { height: 6px; background: #E3EAF2; border-radius: 99px; margin-top: 10px; }
.bar-mini i { display: block; height: 100%; background: var(--blue); border-radius: 99px; }
.step h3 { margin: 0 0 8px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.metric-row { display: grid; grid-template-columns: 180px 1fr; gap: 22px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.stamp {
  width: 148px; height: 148px; border-radius: 50%;
  border: 8px solid #F8E7DC; color: var(--coral);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #fff;
}
.stamp strong { font-size: 40px; line-height: 1; }
.stamp span { font-size: 13px; color: var(--mist); margin-top: 4px; }
.metric-list { display: grid; gap: 14px; }
.metric-item { display: grid; grid-template-columns: 120px 1fr 64px; gap: 12px; align-items: center; }
.metric-item em { font-style: normal; font-weight: 700; }
.track { height: 10px; background: #E7EEF6; border-radius: 99px; overflow: hidden; }
.track i { display: block; height: 100%; background: var(--blue); }
.metric-item b { color: var(--coral); text-align: right; }
.list-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.media-card {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  color: var(--ink);
  transition: transform .2s ease, box-shadow .2s ease;
}
.media-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color: var(--ink); }
.score-pill {
  width: 92px; height: 92px; border-radius: 14px;
  background: #EAF1FE; color: var(--blue);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-weight: 700;
}
.score-pill b { font-size: 26px; line-height: 1; }
.score-pill span { font-size: 12px; font-weight: 600; }
.media-card h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.45; }
.media-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.card-foot { margin-top: 10px; color: var(--mist); font-size: 13px; }
.quotes { display: grid; gap: 14px; }
.quote {
  background: #fff;
  border-left: 4px solid var(--blue);
  border-radius: 0 16px 16px 0;
  box-shadow: var(--shadow);
  padding: 22px 26px;
}
.quote p { margin: 0 0 8px; font-size: 17px; line-height: 1.8; }
.quote span { color: var(--mist); font-size: 13px; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.compare-col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.compare-col header { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.compare-col header h3 { margin: 0; font-size: 20px; }
.seal { background: #EAF1FE; color: var(--blue); border-radius: 999px; padding: 4px 10px; font-size: 13px; font-weight: 700; }
.compare-col.is-strong header { background: #F7FAFF; }
.compare-col ul { list-style: none; margin: 0; padding: 8px 22px 18px; }
.compare-col li { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.compare-col li:last-child { border-bottom: 0; }
.compare-col li strong { display: block; color: var(--ink); }
.evidence { display: grid; gap: 14px; }
.evidence-item {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow);
  color: var(--ink);
}
.evidence-item:hover { color: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.date-chip { color: var(--blue); font-weight: 700; }
.evidence-item p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.device-stack { display: grid; gap: 14px; }
.device-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
}
.device-row h3 { margin: 0 0 6px; font-size: 18px; }
.device-row p { margin: 0; color: var(--muted); }
.device-tag { font-weight: 700; color: var(--blue); }
.topic-list { display: grid; gap: 12px; }
.topic-row {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  color: var(--ink);
}
.topic-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color: var(--ink); }
.topic-row h3 { margin: 0 0 4px; font-size: 18px; }
.topic-row p { margin: 0; color: var(--muted); font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 6px 20px; }
.faq-item summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--blue); font-size: 22px; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 0 0 16px; color: var(--muted); }
.guard { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.guard-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.guard-item h3 { margin: 0 0 8px; font-size: 18px; }
.guard-item p { margin: 0; color: var(--muted); font-size: 14px; }
.close-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); padding: 36px 40px; }
.close-band p { margin: 0; color: var(--muted); max-width: 640px; }
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: rgba(255,255,255,.96);
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 24px rgba(27,36,48,.06);
  transform: translateY(110%);
  transition: transform .25s ease;
}
.dock.is-on { transform: translateY(0); }
.dock-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.dock strong { font-size: 16px; }
.dock span { display: block; color: var(--muted); font-size: 13px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 42px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; }
.footer-brand { font-weight: 700; font-size: 18px; margin: 0 0 8px; }
.age { display: inline-block; margin-top: 8px; background: #F8E7DC; color: var(--coral-deep); font-weight: 700; border-radius: 8px; padding: 2px 8px; font-size: 13px; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { color: var(--ink); }
.footer-links a:hover { color: var(--blue); }
.copy { margin: 22px 0 0; color: var(--mist); font-size: 13px; }
@media (max-width: 1199.98px) {
  h1 { font-size: 36px; }
}
@media (max-width: 991.98px) {
  .nav-side { display: none; }
  .nav-bar { display: flex; justify-content: center; }
  .menu-btn { display: inline-flex; position: absolute; right: 0; top: 18px; }
  .hero-grid, .sell-grid, .entry-grid, .steps, .metric-row, .compare, .guard, .footer-grid, .close-band { grid-template-columns: 1fr; }
  .entry-card.mid, .entry-card.low, .entry-card.tall { margin-top: 0; min-height: 0; }
  .close-band { display: grid; }
  .metric-row { justify-items: center; }
}
@media (max-width: 767.98px) {
  :root { --pad: 64px; }
  .list-grid, .device-row, .topic-row, .evidence-item, .metric-item { grid-template-columns: 1fr; }
  .media-card { grid-template-columns: 72px 1fr; }
  .stage-screen { height: 220px; }
  h1 { font-size: 30px; }
  .section-head h2, .close-band h2 { font-size: 26px; }
  .evidence-item { gap: 6px; }
}
@media (max-width: 575.98px) {
  .wrap { width: min(var(--wrap), calc(100% - 28px)); }
  .hero { padding: 56px 0 48px; }
  .hero-actions, .btn-coral, .btn-main, .btn-ghost { width: 100%; }
  .dock-inner { flex-direction: column; align-items: stretch; padding: 10px 0; }
  .brand-line { font-size: 16px; }
  .media-card { grid-template-columns: 1fr; }
  .score-pill { width: 72px; height: 64px; }
}

/* roulang page: category2 */
:root {
 --blue: #2F6FED;
 --blue-deep: #1E56C8;
 --mist: #5E738C;
 --bg: #F3F6FA;
 --card: #FFFFFF;
 --ink: #1B2430;
 --muted: #5C6B7A;
 --line: #E3EAF2;
 --coral: #E07A3D;
 --coral-deep: #C8642C;
 --radius: 16px;
 --radius-sm: 12px;
 --shadow: 0 10px 28px rgba(27,36,48,.08);
 --shadow-hover: 0 16px 34px rgba(27,36,48,.12);
 --wrap: 1120px;
 --pad: 88px;
}
:root { --pad: 64px; }
/* roulang page: category2 */
:root {
 --blue: #2F6FED;
 --blue-deep: #1E56C8;
 --mist: #5E738C;
 --bg: #F3F6FA;
 --card: #FFFFFF;
 --ink: #1B2430;
 --muted: #5C6B7A;
 --line: #E3EAF2;
 --coral: #E07A3D;
 --coral-deep: #C8642C;
 --radius: 16px;
 --radius-sm: 12px;
 --shadow: 0 10px 28px rgba(27,36,48,.08);
 --shadow-hover: 0 16px 34px rgba(27,36,48,.12);
 --wrap: 1120px;
 --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 font-weight: 400;
 line-height: 1.8;
 color: var(--ink);
 background: var(--bg);
 padding-bottom: 0;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-deep); }
button, input { font-family: inherit; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.wrap {
 width: min(var(--wrap), calc(100% - 40px));
 margin: 0 auto;
}
.site-header {
 background: #fff;
 border-bottom: 1px solid var(--line);
 z-index: 50;
}
.nav-bar {
 min-height: 84px;
 display: grid;
 grid-template-columns: 1fr auto 1fr;
 align-items: center;
 gap: 16px;
 position: relative;
}
.nav-side { display: flex; align-items: center; gap: 8px; }
.nav-left { justify-content: flex-start; }
.nav-right { justify-content: flex-end; }
.nav-link {
 display: inline-flex;
 align-items: center;
 height: 40px;
 padding: 0 14px;
 color: var(--ink);
 font-weight: 600;
 border-radius: 10px;
}
.nav-link:hover { background: #F4F7FC; color: var(--blue); }
.nav-link.active { color: var(--blue); background: #EAF1FE; }
.brand {
 display: flex;
 flex-direction: column;
 align-items: center;
 text-align: center;
 color: var(--ink);
 line-height: 1.25;
 min-width: 220px;
}
.brand:hover { color: var(--ink); }
.brand-line { font-size: 18px; font-weight: 700; letter-spacing: .02em; }
.brand-sub { margin-top: 4px; font-size: 13px; font-weight: 700; color: var(--blue); }
.menu-btn {
 display: none;
 width: 46px;
 height: 46px;
 border: 1px solid var(--line);
 border-radius: 12px;
 background: #fff;
 padding: 0;
 align-items: center;
 justify-content: center;
 flex-direction: column;
 gap: 5px;
 position: absolute;
 right: 0;
 top: 50%;
 transform: translateY(-50%);
}
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.menu-btn:hover { border-color: var(--blue); }
.menu-btn:active { background: #F4F7FC; }
.mobile-panel { background: #fff; border-top: 1px solid var(--line); padding: 8px 0 16px; }
.mobile-link {
 display: block;
 padding: 12px 4px;
 color: var(--ink);
 font-weight: 600;
 border-bottom: 1px solid var(--line);
}
.mobile-link:hover { color: var(--blue); }
.mobile-link.active { color: var(--blue); }
.page-head {
 background: #fff;
 padding: 72px 0 56px;
 border-bottom: 1px solid var(--line);
}
.head-grid {
 display: grid;
 grid-template-columns: 1fr 180px;
 gap: 36px;
 align-items: center;
}
.kicker {
 margin: 0 0 12px;
 color: var(--blue);
 font-size: 14px;
 font-weight: 700;
 letter-spacing: .06em;
}
.page-head h1 {
 margin: 0 0 12px;
 font-size: 36px;
 line-height: 1.35;
 font-weight: 700;
}
.head-lead {
 margin: 0;
 max-width: 640px;
 color: var(--muted);
 font-size: 17px;
 line-height: 1.8;
}
.conclusion {
 width: 156px;
 height: 156px;
 margin-left: auto;
 border-radius: 50%;
 border: 2px solid var(--coral);
 background: #fff;
 box-shadow: var(--shadow);
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 text-align: center;
 color: var(--coral-deep);
 transform: rotate(-8deg);
}
.conclusion b { font-size: 20px; line-height: 1.3; font-weight: 700; }
.conclusion span { margin-top: 4px; font-size: 13px; font-weight: 700; }
.section { padding: var(--pad) 0; background: #fff; }
.section-alt { background: var(--bg); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2, .close-band h2 {
 margin: 0 0 12px;
 font-size: 30px;
 line-height: 1.35;
 font-weight: 700;
}
.section-lead { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.mag-list { display: flex; flex-direction: column; gap: 16px; }
.mag-row {
 display: grid;
 grid-template-columns: 92px minmax(0, 1fr) 92px;
 gap: 22px;
 align-items: center;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 24px 28px;
 color: var(--ink);
 transition: transform .2s ease, box-shadow .2s ease;
}
.mag-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color: var(--ink); }
.score-seal {
 width: 84px;
 height: 84px;
 border-radius: 18px;
 background: #EAF1FE;
 color: var(--blue);
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 line-height: 1.15;
}
.score-seal strong { font-size: 26px; font-weight: 700; }
.score-seal span { margin-top: 4px; font-size: 12px; font-weight: 700; }
.mag-copy h3 { margin: 0 0 6px; font-size: 20px; line-height: 1.45; font-weight: 700; }
.mag-copy p { margin: 0; color: var(--muted); line-height: 1.75; }
.state {
 justify-self: end;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-width: 72px;
 height: 32px;
 padding: 0 12px;
 border-radius: 999px;
 background: #F4F7FB;
 color: var(--mist);
 font-size: 13px;
 font-weight: 700;
}
.state.live { background: #EAF1FE; color: var(--blue); }
.scene-stack { display: flex; flex-direction: column; gap: 14px; }
.scene-bar {
 display: grid;
 grid-template-columns: 148px minmax(0, 1fr) auto;
 gap: 18px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 22px 26px;
}
.scene-bar:hover { box-shadow: var(--shadow-hover); }
.scene-name { font-weight: 700; color: var(--blue); }
.scene-bar p { margin: 0; color: var(--ink); }
.scene-bar a {
 font-weight: 700;
 white-space: nowrap;
}
.compare {
 max-width: 820px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 overflow: hidden;
}
.compare-head, .compare-row {
 display: grid;
 grid-template-columns: 120px 1fr 1fr;
 gap: 12px;
 align-items: center;
}
.compare-head {
 padding: 18px 22px;
 background: #F7FAFE;
 border-bottom: 1px solid var(--line);
 font-weight: 700;
}
.compare-row { padding: 16px 22px; border-bottom: 1px solid var(--line); }
.compare-row:last-child { border-bottom: 0; }
.compare-row span { color: var(--muted); }
.compare-row b { font-weight: 700; color: var(--ink); }
.seal-line {
 display: inline-flex;
 align-items: center;
 height: 32px;
 padding: 0 12px;
 border-radius: 999px;
 background: #EAF1FE;
 color: var(--blue);
 font-size: 13px;
}
.more-row {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 16px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 28px 32px;
}
.more-row p { margin: 0; color: var(--muted); }
.btn-main, .btn-ghost {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 48px;
 padding: 0 22px;
 border-radius: 12px;
 font-weight: 700;
 font-size: 16px;
 border: 1px solid transparent;
 transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-main { background: var(--blue); color: #fff; }
.btn-main:hover { background: var(--blue-deep); color: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-ghost:hover { background: #F4F8FF; color: var(--blue-deep); }
.btn-main:active, .btn-ghost:active { transform: translateY(0); }
.evidence { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.evidence li {
 display: grid;
 grid-template-columns: 140px minmax(0, 1fr);
 gap: 18px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-left: 4px solid var(--blue);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 20px 24px;
}
.evidence time { font-weight: 700; color: var(--blue); }
.evidence p { margin: 0; }
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 860px; }
.faq-item {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 6px 22px;
}
.faq-item summary {
 cursor: pointer;
 font-weight: 700;
 min-height: 52px;
 display: flex;
 align-items: center;
 list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "";
 margin-left: auto;
 width: 10px;
 height: 10px;
 border-right: 2px solid var(--blue);
 border-bottom: 2px solid var(--blue);
 transform: rotate(45deg);
 transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(225deg); }
.faq-item p { margin: 0 0 16px; color: var(--muted); }
.close-band { background: #fff; border-top: 1px solid var(--line); }
.close-inner {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 24px;
}
.close-band p { margin: 0; color: var(--muted); }
.site-footer {
 background: #fff;
 border-top: 1px solid var(--line);
 padding: 48px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 1.3fr .9fr; gap: 32px; }
.footer-brand { margin: 0 0 8px; font-size: 18px; font-weight: 700; }
.site-footer p { margin: 0; color: var(--muted); }
.age {
 display: inline-flex;
 align-items: center;
 height: 28px;
 margin-top: 14px;
 padding: 0 10px;
 border-radius: 999px;
 background: #EAF1FE;
 color: var(--blue);
 font-size: 13px;
 font-weight: 700;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--ink); font-weight: 600; }
.footer-links a:hover { color: var(--blue); }
.copy { margin-top: 22px !important; font-size: 13px; }
@media (max-width: 1199.98px) {
 .page-head h1 { font-size: 32px; }
}
@media (max-width: 991.98px) {
 :root { --pad: 72px; }
 .nav-side { display: none; }
 .menu-btn { display: inline-flex; }
 .brand { min-width: 0; padding-right: 56px; }
 .head-grid { grid-template-columns: 1fr; }
 .conclusion { margin: 8px 0 0; }
 .scene-bar, .evidence li, .close-inner, .more-row, .footer-grid {
 grid-template-columns: 1fr;
 display: grid;
 }
 .footer-grid { display: grid; }
 .close-inner, .more-row { align-items: flex-start; }
}
@media (max-width: 767.98px) {
 .mag-row { grid-template-columns: 1fr; justify-items: start; }
 .state { justify-self: start; }
 .compare-head, .compare-row { grid-template-columns: 1fr; gap: 6px; }
 .page-head h1, .section-head h2, .close-band h2 { font-size: 26px; }
}
@media (max-width: 575.98px) {
 :root { --pad: 56px; }
 .wrap { width: min(var(--wrap), calc(100% - 32px)); }
 .page-head { padding: 48px 0 36px; }
 .btn-main, .btn-ghost { width: 100%; }
 .mag-row, .scene-bar, .more-row, .evidence li { padding: 20px; }
 .conclusion { width: 132px; height: 132px; }
}

/* roulang page: category1 */
:root {
  --blue: #2F6FED;
  --blue-deep: #1E56C8;
  --mist: #5E738C;
  --bg: #F3F6FA;
  --card: #FFFFFF;
  --ink: #1B2430;
  --muted: #5C6B7A;
  --line: #E3EAF2;
  --coral: #E07A3D;
  --coral-deep: #C8642C;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 10px 28px rgba(27,36,48,.08);
  --shadow-hover: 0 16px 34px rgba(27,36,48,.12);
  --wrap: 1120px;
  --pad: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-deep); }
button, input { font-family: inherit; }
button { cursor: pointer; }
:focus-visible {
  outline: 3px solid rgba(47,111,237,.35);
  outline-offset: 2px;
}
.wrap {
  width: min(100%, var(--wrap));
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.nav-bar {
  min-height: 84px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  position: relative;
}
.nav-side { display: flex; align-items: center; gap: 8px; }
.nav-left { justify-content: flex-start; }
.nav-right { justify-content: flex-end; }
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  color: var(--ink);
  font-weight: 600;
  border-radius: 10px;
}
.nav-link:hover { background: #F4F7FC; color: var(--blue); }
.nav-link.active { color: var(--blue); background: #EAF1FE; }
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--ink);
  line-height: 1.25;
  min-width: 220px;
}
.brand:hover { color: var(--ink); }
.brand-line { font-size: 18px; font-weight: 700; letter-spacing: .02em; }
.brand-sub { margin-top: 4px; font-size: 13px; font-weight: 700; color: var(--blue); }
.menu-btn {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.menu-btn:hover { border-color: var(--blue); }
.mobile-panel { background: #fff; border-top: 1px solid var(--line); padding: 8px 0 16px; }
.mobile-link {
  display: block;
  padding: 12px 4px;
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.mobile-link:hover { color: var(--blue); }
.mobile-link.active { color: var(--blue); }
.section { padding: var(--pad) 0; background: #fff; }
.section-alt { background: var(--bg); }
.page-head { background: #fff; padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.page-kicker {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
}
.page-head h1 {
  margin: 0 0 12px;
  max-width: 760px;
  font-size: 40px;
  line-height: 1.3;
  font-weight: 700;
}
.page-lead {
  margin: 0 0 28px;
  max-width: 640px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.search-form { display: flex; gap: 10px; flex: 1 1 320px; min-width: 260px; }
.search-input {
  height: 48px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #F7FAFD;
  color: var(--ink);
  padding: 0 16px;
  font-size: 15px;
}
.search-input::placeholder { color: #8A98A8; }
.search-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(47,111,237,.16);
  background: #fff;
}
.sort-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.sort-chip {
  height: 40px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
}
.sort-chip:hover { border-color: var(--blue); color: var(--blue); }
.sort-chip.is-on { background: #EAF1FE; color: var(--blue); border-color: #C9DAFB; }
.check-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.check-row li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mist);
  font-size: 14px;
  font-weight: 600;
}
.check-row li::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #EAF1FE url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%232F6FED' d='M6.3 11.3 3.2 8.2l1.1-1.1 2 2 5-5 1.1 1.1z'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2, .close-band h2, .more-band h2, .proof-band h2 {
  margin: 0 0 10px;
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
}
.section-lead { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.catalog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
  align-items: start;
}
.yi-list { display: grid; gap: 16px; }
.yi-card {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 28px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.yi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.score-seal {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid var(--blue);
  background: #F4F8FF;
  color: var(--blue);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.15;
}
.score-seal strong { font-size: 20px; font-weight: 700; }
.score-seal span { margin-top: 2px; font-size: 12px; font-weight: 700; }
.yi-card-top, .meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
}
.yi-card h3 { margin: 8px 0; font-size: 20px; line-height: 1.45; font-weight: 700; }
.yi-card h3 a { color: var(--ink); }
.yi-card h3 a:hover { color: var(--blue); }
.yi-card p { margin: 0 0 10px; color: var(--muted); }
.meta-line { margin: 0; padding: 0; list-style: none; color: var(--mist); font-size: 13px; }
.chip {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #EAF1FE;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.chip.soft { background: #F4F7FB; color: var(--mist); }
.card-time { color: var(--mist); font-size: 13px; font-weight: 600; }
.empty-note {
  margin: 8px 0 0;
  padding: 18px 20px;
  border-radius: 12px;
  background: #fff;
  border: 1px dashed var(--line);
  color: var(--muted);
}
.summary-card {
  position: sticky;
  top: 104px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
}
.summary-num {
  margin: 6px 0 0;
  font-size: 56px;
  line-height: 1;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.03em;
}
.summary-label { margin: 8px 0 18px; color: var(--muted); font-weight: 700; }
.summary-list { list-style: none; margin: 0 0 16px; padding: 0; }
.summary-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 14px;
}
.summary-list strong { color: var(--ink); font-weight: 700; }
.summary-card p:last-child { margin: 0; color: var(--muted); font-size: 14px; }
.sort-line { padding: 28px 0; }
.sort-line p {
  margin: 0;
  padding: 18px 22px;
  background: #F7FAFD;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
}
.proof-band {
  display: grid;
  grid-template-columns: 1.15fr repeat(3, .8fr);
  gap: 18px;
  align-items: stretch;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
}
.proof-date {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.proof-band h2 { font-size: 26px; }
.proof-band p { margin: 0; color: var(--muted); }
.proof-stat {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}
.proof-stat span { display: block; color: var(--mist); font-size: 13px; font-weight: 700; }
.proof-stat strong { display: block; margin-top: 6px; font-size: 28px; line-height: 1.2; color: var(--ink); }
.proof-stat em { display: block; margin-top: 4px; font-style: normal; color: var(--muted); font-size: 13px; }
.more-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.more-band h2 { font-size: 26px; }
.more-band p { margin: 0; color: var(--muted); }
.btn-coral, .btn-main, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-coral { background: var(--coral); color: #fff; }
.btn-coral:hover { background: var(--coral-deep); color: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
.btn-main { background: var(--blue); color: #fff; }
.btn-main:hover, .btn-main:focus { background: var(--blue-deep); color: #fff; box-shadow: var(--shadow); }
.btn-ghost { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-ghost:hover { background: #F4F8FF; color: var(--blue-deep); }
.text-links { list-style: none; margin: 0; padding: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.text-links li { border-top: 1px solid var(--line); }
.text-links li:first-child { border-top: 0; }
.text-links a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 20px 24px;
  color: var(--ink);
  font-weight: 700;
}
.text-links a span { color: var(--mist); font-size: 13px; font-weight: 600; }
.text-links a:hover { color: var(--blue); background: #F8FBFF; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0 24px;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 700;
  font-size: 17px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: rotate(45deg);
  flex: 0 0 auto;
}
.faq-item[open] summary::after { transform: rotate(225deg); margin-top: 6px; }
.faq-item[open] { border-color: #C9DAFB; }
.faq-item p { margin: 0; padding: 0 0 20px; color: var(--muted); max-width: 760px; }
.close-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 36px 32px;
  border-radius: var(--radius);
  background: #EAF1FE;
}
.close-band h2 { margin: 0; font-size: 28px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  gap: 32px;
  padding: 48px 0 20px;
}
.footer-brand { margin: 0 0 8px; font-size: 18px; font-weight: 700; }
.site-footer p { margin: 0; color: var(--muted); }
.age {
  display: inline-flex;
  margin-top: 14px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #F4F7FB;
  color: var(--mist);
  font-size: 13px;
  font-weight: 700;
}
.footer-links { display: grid; align-content: start; gap: 4px; }
.footer-links a {
  display: block;
  padding: 8px 0;
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.footer-links a:hover { color: var(--blue); }
.copy { color: var(--muted); font-size: 14px; padding: 8px 0 28px; }
@media (max-width: 1199.98px) {
  :root { --pad: 72px; }
  .page-head h1 { font-size: 34px; }
}
@media (max-width: 991.98px) {
  .nav-side { display: none; }
  .nav-bar { display: flex; justify-content: center; min-height: 72px; }
  .brand { min-width: 0; }
  .menu-btn {
    display: inline-flex;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
  }
  .catalog-layout, .proof-band, .footer-grid { grid-template-columns: 1fr; }
  .summary-card { position: static; }
  .proof-stat { padding: 12px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .more-band, .close-band { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 767.98px) {
  :root { --pad: 56px; }
  .page-head { padding: 36px 0 28px; }
  .page-head h1, .section-head h2, .close-band h2 { font-size: 28px; }
  .yi-card { grid-template-columns: 64px minmax(0, 1fr); padding: 20px; gap: 12px; }
  .score-seal { width: 64px; height: 64px; }
  .proof-band, .more-band, .close-band { padding: 22px; }
  .text-links a { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 575.98px) {
  .search-form, .btn-main, .btn-ghost, .btn-coral { width: 100%; }
  .search-form { flex-direction: column; }
  .sort-chip { flex: 1 1 auto; }
  .summary-num { font-size: 46px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

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