/* roulang page: index */
:root {
  --blue: #3E6F9A;
  --ink-btn: #2C5274;
  --btn-hover: #234562;
  --btn-active: #1b364c;
  --page: #F3F6FA;
  --alt: #E7EEF6;
  --card: #FFFFFF;
  --ink: #1C2833;
  --muted: #5C6B7A;
  --line: #E1E8F0;
  --sand: #C4A574;
  --sand-soft: #F6F1E8;
  --radius: 16px;
  --input: 12px;
  --shadow: 0 10px 30px rgba(28, 55, 84, .08);
  --shadow-hover: 0 16px 36px rgba(28, 55, 84, .14);
  --wrap: 1120px;
  --pad: 72px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:hover { color: var(--ink-btn); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
p { margin: 0 0 12px; }
h1, h2, h3, p, dl, dd { overflow-wrap: anywhere; }
h1 { font-size: 36px; line-height: 1.35; font-weight: 700; margin: 0 0 12px; letter-spacing: 0; }
h2 { font-size: 26px; line-height: 1.4; font-weight: 700; margin: 0 0 14px; }
h3 { font-size: 18px; line-height: 1.5; font-weight: 700; margin: 0 0 8px; }
.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }
.section { padding: var(--pad) 0; }
.bg-plain { background: var(--page); }
.bg-alt { background: var(--alt); }
.bg-sand { background: var(--sand-soft); }
.lead { color: var(--ink); font-size: 16px; line-height: 1.75; margin: 0; max-width: 720px; }
.muted { color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card:hover { box-shadow: var(--shadow-hover); }
.btn-main, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease;
}
.btn-main { background: var(--ink-btn); color: #fff; }
.btn-main:hover { background: var(--btn-hover); color: #fff; transform: translateY(1px); }
.btn-main:active { background: var(--btn-active); color: #fff; transform: translateY(1px); }
.btn-ghost { background: #fff; color: var(--ink-btn); border-color: #C9D6E4; }
.btn-ghost:hover { background: #F7FAFC; color: var(--ink-btn); transform: translateY(1px); }
.btn-ghost:active { background: var(--alt); color: var(--ink-btn); }
.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: #F3EADF;
  color: #6E5732;
  font-size: 12px;
  line-height: 1;
  letter-spacing: .02em;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(243, 246, 250, .96);
  border-bottom: 1px solid var(--line);
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}
.brand-mark { font-size: 28px; line-height: 1; font-weight: 800; color: var(--ink-btn); letter-spacing: .04em; }
.brand-sub { font-size: 14px; color: var(--muted); white-space: nowrap; }
.brand-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.brand-links a {
  text-decoration: none;
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
}
.brand-links a:hover { background: rgba(62, 111, 154, .08); color: var(--ink-btn); }
.brand-links a.active { background: rgba(62, 111, 154, .14); color: var(--ink-btn); }
.icon-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  padding: 0 0 14px;
}
.icon-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 78px;
  padding: 8px 6px;
  border-radius: 14px;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
}
.icon-link span {
  font-size: 13px;
  line-height: 1.3;
  text-align: center;
  max-height: 2.6em;
  overflow: hidden;
}
.icon-link svg { width: 22px; height: 22px; stroke: var(--ink-btn); fill: none; stroke-width: 1.8; }
.icon-link:hover { background: #fff; box-shadow: var(--shadow); color: var(--ink-btn); }
.icon-link.current { background: rgba(62, 111, 154, .14); color: var(--ink-btn); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 42px;
  align-items: center;
}
.hero-copy .sub { font-size: 18px; line-height: 1.6; margin: 0 0 14px; color: var(--ink-btn); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.player {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.player-screen {
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(180deg, rgba(255,255,255,.2), rgba(44,82,116,.05)),
    #E7EEF6;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.play-orb {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--ink-btn);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}
.play-orb i {
  width: 0;
  height: 0;
  border-left: 18px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}
.player-bar { display: flex; align-items: center; gap: 12px; padding: 12px 14px 14px; }
.time { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 13px; white-space: nowrap; }
.track { flex: 1; height: 6px; background: #E1E8F0; border-radius: 999px; overflow: hidden; }
.track b { display: block; width: 42%; height: 100%; background: var(--sand); border-radius: inherit; }
.vol { width: 18px; height: 18px; stroke: var(--ink-btn); fill: none; stroke-width: 1.8; flex: none; }
.scroll-wrap { margin-top: 28px; overflow-x: auto; padding-bottom: 8px; }
.scroll-row, .scroll-row.offset { display: flex; gap: 14px; min-width: max-content; }
.scroll-row.offset { margin-top: 14px; padding-left: 72px; }
.bar-item {
  width: 320px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px 18px;
}
.bar-item strong { display: block; margin-bottom: 6px; }
.bar-item p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.split { display: grid; grid-template-columns: .82fr 1.18fr; gap: 36px; align-items: start; }
.point-list { display: flex; flex-direction: column; gap: 12px; margin: 0; padding: 0; list-style: none; }
.point-list li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px 16px 46px;
  position: relative;
}
.point-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sand);
  position: absolute;
  left: 20px;
  top: 24px;
}
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 26px; }
.compare article { padding: 22px 22px 8px; }
.compare dt { font-weight: 700; margin-bottom: 4px; }
.compare dd { margin: 0 0 16px; color: var(--muted); }
.kicker { color: var(--sand); font-size: 13px; letter-spacing: .08em; margin-bottom: 8px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; position: relative; }
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px 16px;
  min-height: 180px;
}
.step:hover { box-shadow: var(--shadow-hover); }
.step em {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #F3EADF;
  color: #6E5732;
  font-style: normal;
  font-weight: 700;
  margin-bottom: 12px;
}
.step p { color: var(--muted); margin: 0; font-size: 15px; }
.offset-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.offset-grid .visual { margin-top: 28px; }
.screen-card { padding: 18px; }
.fake-lines { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.fake-lines span { display: block; height: 12px; border-radius: 999px; background: var(--alt); }
.fake-lines span:nth-child(1) { width: 86%; }
.fake-lines span:nth-child(2) { width: 64%; background: #F3EADF; }
.fake-lines span:nth-child(3) { width: 74%; }
.caption-row { display: flex; justify-content: space-between; gap: 10px; margin-top: 14px; color: var(--muted); font-size: 14px; }
.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.metric-strip div { padding: 22px 20px; }
.metric-strip div + div { border-left: 1px solid var(--line); }
.metric-strip strong { display: block; font-size: 34px; line-height: 1.1; color: var(--ink-btn); font-variant-numeric: tabular-nums; }
.metric-strip span { color: var(--muted); font-size: 14px; }
.quote-rail { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.quote-rail blockquote {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--sand);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.quote-rail p { margin: 0 0 8px; }
.quote-rail cite { color: var(--muted); font-style: normal; font-size: 14px; }
.scene-layout { display: grid; grid-template-columns: 1.35fr .8fr; gap: 14px; margin-top: 22px; }
.scene-side { display: flex; flex-direction: column; gap: 14px; }
.scene { padding: 20px; }
.scene p { margin: 0; color: var(--muted); }
.news-list { display: flex; flex-direction: column; margin-top: 8px; }
.news-item {
  display: grid;
  grid-template-columns: 116px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
}
.news-item time { color: var(--muted); font-variant-numeric: tabular-nums; }
.news-item:hover { color: var(--ink-btn); }
.news-item:hover b { text-decoration: underline; text-underline-offset: 3px; }
.big-nums { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.big-nums article { background: transparent; border: 0; box-shadow: none; padding: 8px 4px; }
.big-nums strong { display: block; font-size: 40px; line-height: 1; color: var(--ink-btn); font-variant-numeric: tabular-nums; }
.big-nums span { color: var(--muted); }
.topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 22px; }
.topic {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 26px 22px;
  text-decoration: none;
  color: var(--ink);
  min-height: 168px;
}
.topic:hover { color: var(--ink-btn); }
.topic-ico {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #F3EADF;
  display: grid;
  place-items: center;
  flex: none;
}
.topic-ico svg { width: 26px; height: 26px; stroke: #6E5732; fill: none; stroke-width: 1.8; }
.faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 700;
}
.faq-q i { color: var(--sand); font-style: normal; }
.faq-a { display: none; padding: 0 18px 16px; color: var(--muted); }
.faq-item.open .faq-a { display: block; }
.device-row { display: grid; grid-template-columns: .7fr 1fr 1.45fr; gap: 14px; align-items: end; margin-top: 22px; }
.device { background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 14px; }
.device:hover { box-shadow: var(--shadow-hover); }
.device .frame { background: var(--alt); border-radius: 12px; padding: 12px; }
.device .frame b, .device .frame i, .device .frame s { display: block; height: 8px; border-radius: 99px; background: #fff; margin-bottom: 8px; text-decoration: none; }
.device .frame i { width: 70%; background: #F3EADF; }
.device .frame s { width: 46%; }
.phone .frame { min-height: 150px; }
.pad .frame { min-height: 180px; }
.desk .frame { min-height: 210px; }
.device p { margin: 10px 4px 4px; color: var(--muted); font-size: 14px; }
.close-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px;
}
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 28px 0 34px; }
.foot-row { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.foot-brand { text-decoration: none; color: var(--ink-btn); font-weight: 800; font-size: 18px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 14px; }
.foot-links a { text-decoration: none; color: var(--ink); }
.foot-links a:hover { color: var(--ink-btn); text-decoration: underline; text-underline-offset: 3px; }
.fine { color: var(--muted); font-size: 13px; margin: 14px 0 0; }
@media (max-width: 1199.98px) {
  .hero-grid { gap: 28px; }
  .bar-item { width: 280px; }
}
@media (max-width: 991.98px) {
  :root { --pad: 56px; }
  h1 { font-size: 32px; }
  .icon-nav { grid-template-columns: repeat(4, 1fr); }
  .hero-grid, .split, .offset-grid, .compare, .scene-layout, .topic-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .offset-grid .visual { margin-top: 0; }
  .scroll-row.offset { padding-left: 28px; }
  .big-nums { grid-template-columns: 1fr 1fr; }
  .device-row { grid-template-columns: 1fr; }
  .close-band { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767.98px) {
  .brand-row { align-items: flex-start; flex-direction: column; padding-top: 12px; gap: 8px; }
  .brand-sub { white-space: normal; }
  .metric-strip { grid-template-columns: 1fr; }
  .metric-strip div + div { border-left: 0; border-top: 1px solid var(--line); }
  .news-item { grid-template-columns: 1fr; gap: 4px; }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
  :root { --pad: 40px; }
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  .wrap { width: min(var(--wrap), calc(100% - 24px)); }
  .icon-link { min-height: 72px; }
  .icon-link span { font-size: 12px; }
  .big-nums strong { font-size: 32px; }
  .hero-actions .btn-main, .hero-actions .btn-ghost { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category2 */
:root {
 --blue: #3E6F9A;
 --ink-btn: #2C5274;
 --btn-hover: #234562;
 --btn-active: #1b364c;
 --page: #F3F6FA;
 --alt: #E7EEF6;
 --card: #FFFFFF;
 --ink: #1C2833;
 --muted: #5C6B7A;
 --line: #E1E8F0;
 --sand: #C4A574;
 --sand-soft: #F6F1E8;
 --radius: 16px;
 --input: 12px;
 --shadow: 0 10px 30px rgba(28, 55, 84, .08);
 --shadow-hover: 0 16px 36px rgba(28, 55, 84, .14);
 --wrap: 1120px;
 --pad: 72px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background: var(--page);
 color: var(--ink);
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
}
img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:hover { color: var(--ink-btn); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 36px; line-height: 1.35; font-weight: 800; letter-spacing: 0; }
h2 { font-size: 26px; line-height: 1.4; font-weight: 800; }
h3 { font-size: 18px; line-height: 1.5; font-weight: 750; margin-bottom: 8px; }
.wrap, .container {
 width: min(var(--wrap), calc(100% - 32px));
 max-width: var(--wrap);
 margin-inline: auto;
 padding-left: 0;
 padding-right: 0;
}
.section { padding: var(--pad) 0; }
.lead { color: var(--ink); font-size: 16px; line-height: 1.75; margin: 0; max-width: 760px; }
.muted { color: var(--muted); }
.card {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 transition: box-shadow .18s ease;
}
.card:hover { box-shadow: var(--shadow-hover); }
.btn-main, .btn-ghost {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 46px;
 padding: 0 22px;
 border-radius: 999px;
 text-decoration: none;
 border: 1px solid transparent;
 cursor: pointer;
 transition: background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease;
}
.btn-main { background: var(--ink-btn); color: #fff; }
.btn-main:hover { background: var(--btn-hover); color: #fff; transform: translateY(1px); }
.btn-main:active { background: var(--btn-active); color: #fff; transform: translateY(1px); }
.btn-ghost { background: #fff; color: var(--ink-btn); border-color: #C9D6E4; }
.btn-ghost:hover { background: #F7FAFC; color: var(--ink-btn); transform: translateY(1px); }
.btn-ghost:active { background: var(--alt); color: var(--ink-btn); }
.badge {
 display: inline-flex;
 align-items: center;
 height: 26px;
 padding: 0 10px;
 border-radius: 999px;
 background: #F3EADF;
 color: #6E5732;
 font-size: 12px;
 line-height: 1;
 letter-spacing: .02em;
 text-decoration: none;
}
.site-header {
 position: sticky;
 top: 0;
 z-index: 30;
 background: rgba(243, 246, 250, .96);
 border-bottom: 1px solid var(--line);
}
.brand-row {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 min-height: 74px;
}
.brand {
 display: flex;
 align-items: baseline;
 gap: 10px;
 text-decoration: none;
 color: var(--ink);
 min-width: 0;
}
.brand-mark { font-size: 28px; line-height: 1; font-weight: 800; color: var(--ink-btn); letter-spacing: .04em; }
.brand-sub { font-size: 14px; color: var(--muted); white-space: nowrap; }
.brand-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.brand-links a {
 text-decoration: none;
 color: var(--ink);
 padding: 6px 12px;
 border-radius: 999px;
 font-size: 14px;
}
.brand-links a:hover { background: rgba(62, 111, 154, .08); color: var(--ink-btn); }
.brand-links a.active { background: rgba(62, 111, 154, .14); color: var(--ink-btn); }
.icon-nav {
 display: grid;
 grid-template-columns: repeat(6, 1fr);
 gap: 10px;
 padding: 0 0 14px;
}
.icon-link {
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 gap: 6px;
 min-height: 78px;
 padding: 10px 6px;
 text-align: center;
 text-decoration: none;
 color: var(--ink-btn);
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 14px;
 transition: background .18s ease, box-shadow .18s ease, color .18s ease;
}
.icon-link svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.icon-link svg path, .icon-link svg rect, .icon-link svg circle { fill: none; stroke: currentColor; }
.icon-link svg path[d^="M10"] { fill: currentColor; stroke: none; }
.icon-link span {
 font-size: 13px;
 line-height: 1.3;
 max-height: 2.6em;
 overflow: hidden;
 display: -webkit-box;
 -webkit-line-clamp: 2;
 -webkit-box-orient: vertical;
}
.icon-link:hover { color: var(--ink-btn); box-shadow: var(--shadow); background: #fff; }
.icon-link.current { background: rgba(62, 111, 154, .12); color: var(--ink-btn); border-color: transparent; }
.page-head { padding-top: 48px; padding-bottom: 36px; }
.crumb { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--muted); }
.ask { margin: 14px 0 0; font-size: 18px; line-height: 1.6; color: var(--ink-btn); font-weight: 700; }
.find-form { display: flex; gap: 10px; margin-top: 18px; max-width: 680px; }
.find-form input {
 flex: 1;
 min-width: 0;
 height: 46px;
 border-radius: var(--input);
 border: 1px solid var(--line);
 background: #fff;
 padding: 0 14px;
}
.find-form input:focus { border-color: var(--blue); }
.band-alt { background: var(--alt); }
.band-white { background: #fff; }
.timeline-sec { background: var(--alt); }
.tl { position: relative; margin: 8px 0 0; padding: 6px 0 0 8px; }
.tl-item {
 position: relative;
 display: grid;
 grid-template-columns: 148px 1fr;
 gap: 18px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 18px 18px 18px 22px;
 margin: 0 72px 16px 18px;
 transition: box-shadow .18s ease;
}
.tl-item:nth-child(even) { margin: 0 18px 16px 72px; }
.tl-item:hover { box-shadow: var(--shadow-hover); }
.tl-item::before {
 content: "";
 width: 12px;
 height: 12px;
 border-radius: 50%;
 background: var(--sand);
 border: 3px solid #fff;
 box-shadow: 0 0 0 1px #E4D3B6;
 position: absolute;
 left: -25px;
 top: 24px;
}
.tl-date { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 14px; }
.tl-date b { display: block; color: var(--ink); font-size: 15px; font-weight: 750; }
.tl-body h3 { margin-bottom: 6px; }
.tl-body p { margin: 0 0 10px; color: var(--muted); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; }
.more-row { margin: 8px 0 0 18px; }
.scene-stack { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.scene { padding: 20px 22px; }
.scene-short { width: min(760px, 78%); }
.scene-night { width: min(920px, 88%); margin-left: auto; }
.scene-big { width: 100%; background: var(--sand-soft); }
.scene p { margin: 0; color: var(--muted); }
.vsteps { list-style: none; margin: 18px 0 0; padding: 0; max-width: 760px; }
.vstep {
 position: relative;
 padding: 0 0 22px 62px;
}
.vstep:last-child { padding-bottom: 0; }
.vstep::before {
 content: "";
 position: absolute;
 left: 17px;
 top: 36px;
 bottom: 0;
 width: 2px;
 background: #E4D3B6;
}
.vstep:last-child::before { display: none; }
.vstep i {
 position: absolute;
 left: 0;
 top: 0;
 width: 36px;
 height: 36px;
 border-radius: 50%;
 background: var(--sand);
 color: #fff;
 font-style: normal;
 font-weight: 800;
 display: flex;
 align-items: center;
 justify-content: center;
}
.vstep strong { display: block; }
.vstep span { color: var(--muted); }
.slim { padding: 22px 0; background: var(--page); }
.metric-slim {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 14px;
 box-shadow: var(--shadow);
 overflow: hidden;
}
.metric { padding: 16px 20px; }
.metric + .metric { border-left: 1px solid var(--line); }
.metric b { display: block; font-size: 32px; line-height: 1.1; color: var(--ink-btn); font-variant-numeric: tabular-nums; }
.metric span { color: var(--muted); font-size: 14px; }
.metric-note { margin: 10px 2px 0; color: var(--muted); font-size: 14px; }
.article-list { margin-top: 6px; }
.article-row {
 display: grid;
 grid-template-columns: 132px 1fr auto;
 gap: 16px;
 align-items: center;
 padding: 16px 0;
 border-bottom: 1px solid var(--line);
 color: var(--ink);
 text-decoration: none;
}
.article-row time { color: var(--muted); font-variant-numeric: tabular-nums; }
.article-row:hover b { text-decoration: underline; text-underline-offset: 3px; }
.article-row em { font-style: normal; color: var(--ink-btn); font-size: 14px; }
.faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.faq-q {
 width: 100%;
 text-align: left;
 background: transparent;
 border: 0;
 padding: 16px 18px;
 display: flex;
 justify-content: space-between;
 gap: 12px;
 cursor: pointer;
 font-weight: 700;
}
.faq-q i { color: var(--sand); font-style: normal; }
.faq-a { display: none; padding: 0 18px 16px; color: var(--muted); }
.faq-item.open .faq-a { display: block; }
.close-sec { background: #fff; border-top: 1px solid var(--line); }
.close-panel { display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.close-panel p { margin: 0; color: var(--muted); }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 28px 0 34px; }
.foot-row { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.foot-brand { text-decoration: none; color: var(--ink-btn); font-weight: 800; font-size: 18px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.foot-links a { color: var(--ink); font-size: 14px; text-decoration: underline; text-underline-offset: 2px; }
.fine { color: var(--muted); font-size: 13px; margin: 14px 0 0; }
@media (max-width: 1200px) {
 .tl-item, .tl-item:nth-child(even) { margin-left: 18px; margin-right: 0; }
}
@media (max-width: 992px) {
 :root { --pad: 56px; }
 .icon-nav { grid-template-columns: repeat(4, 1fr); }
 .brand-sub { white-space: normal; }
 .tl-item, .tl-item:nth-child(even) { grid-template-columns: 1fr; gap: 6px; margin-left: 16px; }
 .scene-short, .scene-night { width: 100%; margin-left: 0; }
 .close-panel { align-items: flex-start; }
}
@media (max-width: 768px) {
 .brand-row { flex-direction: column; align-items: flex-start; min-height: 0; padding-top: 12px; }
 .brand-links { justify-content: flex-start; }
 .article-row { grid-template-columns: 1fr; gap: 4px; }
 .metric-slim { grid-template-columns: 1fr; }
 .metric + .metric { border-left: 0; border-top: 1px solid var(--line); }
 .foot-row { flex-direction: column; }
 .close-panel { flex-direction: column; }
}
@media (max-width: 576px) {
 :root { --pad: 40px; }
 h1 { font-size: 28px; }
 h2 { font-size: 22px; }
 .find-form { flex-direction: column; }
 .icon-nav { grid-template-columns: repeat(4, 1fr); gap: 8px; }
 .page-head { padding-top: 32px; }
}

/* roulang page: category1 */
:root {
  --blue: #3E6F9A;
  --ink-btn: #2C5274;
  --btn-hover: #234562;
  --btn-active: #1b364c;
  --page: #F3F6FA;
  --alt: #E7EEF6;
  --card: #FFFFFF;
  --ink: #1C2833;
  --muted: #5C6B7A;
  --line: #E1E8F0;
  --sand: #C4A574;
  --sand-soft: #F6F1E8;
  --radius: 16px;
  --input: 12px;
  --shadow: 0 10px 30px rgba(28, 55, 84, .08);
  --shadow-hover: 0 16px 36px rgba(28, 55, 84, .14);
  --wrap: 1120px;
  --pad: 72px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
button, input, select { font: inherit; color: inherit; }
a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:hover { color: var(--ink-btn); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
p { margin: 0; }
h1, h2, h3 { color: var(--ink); font-weight: 800; }
h1 { font-size: 36px; line-height: 1.35; margin: 0 0 12px; }
h2 { font-size: 26px; line-height: 1.4; margin: 0 0 12px; }
h3 { font-size: 18px; line-height: 1.45; margin: 0; }
.wrap { width: min(var(--wrap), calc(100% - 40px)); margin: 0 auto; }
.section { padding: var(--pad) 0; }
.section.alt { background: var(--alt); }
.lead { color: var(--ink); font-size: 16px; line-height: 1.75; margin: 0; max-width: 720px; }
.muted { color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card:hover { box-shadow: var(--shadow-hover); }
.btn-main, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease;
}
.btn-main { background: var(--ink-btn); color: #fff; }
.btn-main:hover { background: var(--btn-hover); color: #fff; transform: translateY(1px); }
.btn-main:active { background: var(--btn-active); color: #fff; transform: translateY(1px); }
.btn-ghost { background: #fff; color: var(--ink-btn); border-color: #C9D6E4; }
.btn-ghost:hover { background: #F7FAFC; color: var(--ink-btn); transform: translateY(1px); }
.btn-ghost:active { background: var(--alt); color: var(--ink-btn); }
.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: #F3EADF;
  color: #6E5732;
  font-size: 12px;
  line-height: 1;
  letter-spacing: .02em;
  text-decoration: none;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(243, 246, 250, .96);
  border-bottom: 1px solid var(--line);
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}
.brand-mark { font-size: 28px; line-height: 1; font-weight: 800; color: var(--ink-btn); letter-spacing: .04em; }
.brand-sub { font-size: 14px; color: var(--muted); white-space: nowrap; }
.brand-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.brand-links a {
  text-decoration: none;
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
}
.brand-links a:hover { background: rgba(62, 111, 154, .08); color: var(--ink-btn); }
.brand-links a.active { background: rgba(62, 111, 154, .14); color: var(--ink-btn); }
.icon-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  padding: 0 0 14px;
}
.icon-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 78px;
  padding: 10px 8px;
  text-align: center;
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.35;
  transition: background .18s ease, box-shadow .18s ease, color .18s ease;
}
.icon-link span {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.icon-link svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.icon-link:hover { color: var(--ink-btn); box-shadow: var(--shadow); }
.icon-link.current { background: rgba(62, 111, 154, .12); color: var(--ink-btn); border-color: transparent; }
.head-grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 32px;
  align-items: end;
}
.head-note { padding: 22px 22px 18px; }
.head-note strong { display: block; margin-bottom: 8px; }
.head-note p { color: var(--muted); }
.note-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.filter-form {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, .8fr) auto;
  gap: 12px;
  align-items: end;
  margin-top: 18px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 13px; color: var(--muted); }
.field input, .field select {
  height: 46px;
  border-radius: var(--input);
  border: 1px solid var(--line);
  background: #fff;
  padding: 0 12px;
  width: 100%;
}
.field input:focus, .field select:focus { border-color: var(--blue); }
.source-list { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.source-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 18px;
  align-items: center;
  padding: 14px;
  transition: box-shadow .18s ease;
}
.source-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.source-duo .source-row { grid-template-columns: 1fr; align-items: stretch; }
.cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  background: #E7EEF6;
  border: 1px solid var(--line);
  text-decoration: none;
  overflow: hidden;
}
.cover i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46px;
  height: 46px;
  margin: -23px 0 0 -23px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
}
.cover i::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 14px;
  border-style: solid;
  border-width: 9px 0 9px 14px;
  border-color: transparent transparent transparent var(--ink-btn);
}
.cover b {
  position: absolute;
  left: 12px;
  bottom: 10px;
  color: var(--ink-btn);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}
.meta-line { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.meta-line time { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 14px; }
.source-body p { margin-top: 8px; color: var(--muted); }
.source-body h3 a { color: var(--ink); }
.more-wrap { margin: 18px 0 0; }
.check-grid, .article-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
.check-card, .side-card { padding: 18px 20px; }
.check-card dt { font-weight: 800; margin-top: 12px; }
.check-card dt:first-child { margin-top: 0; }
.check-card dd { margin: 4px 0 0; color: var(--muted); }
.rhythm {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.rhythm article { padding: 20px 18px 18px; border-right: 1px solid var(--line); }
.rhythm article:last-child { border-right: 0; }
.rhythm em {
  display: block;
  font-style: normal;
  color: var(--sand);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}
.rhythm p { color: var(--muted); margin-top: 6px; }
.news-list { display: flex; flex-direction: column; margin-top: 8px; }
.news-item {
  display: grid;
  grid-template-columns: 116px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
}
.news-item time { color: var(--muted); font-variant-numeric: tabular-nums; }
.news-item:hover { color: var(--ink-btn); }
.news-item:hover b { text-decoration: underline; text-underline-offset: 3px; }
.faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 700;
}
.faq-q i { color: var(--sand); font-style: normal; }
.faq-a { display: none; padding: 0 18px 16px; color: var(--muted); }
.faq-item.open .faq-a { display: block; }
.close-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 28px;
}
.close-band p { color: var(--muted); margin-top: 6px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 28px 0 34px; }
.foot-row { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.foot-brand { text-decoration: none; color: var(--ink-btn); font-weight: 800; font-size: 18px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.foot-links a { text-decoration: none; color: var(--muted); font-size: 14px; }
.foot-links a:hover { color: var(--ink-btn); }
.fine { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
@media (max-width: 1200px) {
  .filter-form { grid-template-columns: 1fr 1fr 1fr; }
  .filter-form .field:first-child { grid-column: 1 / -1; }
}
@media (max-width: 992px) {
  :root { --pad: 56px; }
  .icon-nav { grid-template-columns: repeat(4, 1fr); }
  .head-grid, .source-row, .check-grid { grid-template-columns: 1fr; }
  .rhythm { grid-template-columns: 1fr 1fr; }
  .rhythm article:nth-child(2) { border-right: 0; }
  .rhythm article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .brand-sub { white-space: normal; }
}
@media (max-width: 768px) {
  :root { --pad: 40px; }
  h1 { font-size: 30px; }
  h2 { font-size: 22px; }
  .brand-row { flex-direction: column; align-items: flex-start; min-height: 0; padding: 12px 0; }
  .brand-links { justify-content: flex-start; }
  .source-duo, .article-grid, .filter-form, .rhythm { grid-template-columns: 1fr; }
  .filter-form .field:first-child { grid-column: auto; }
  .rhythm article { border-right: 0; border-bottom: 1px solid var(--line); }
  .rhythm article:last-child { border-bottom: 0; }
  .news-item { grid-template-columns: 1fr; gap: 4px; }
  .close-band, .foot-row { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 576px) {
  .wrap { width: min(var(--wrap), calc(100% - 28px)); }
  .icon-nav { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .icon-link { min-height: 72px; font-size: 12px; padding: 8px 4px; }
  h1 { font-size: 28px; }
}

/* 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}