/* roulang page: index */
:root {
  --bg: #F3F6FA;
  --bg-alt: #E7EEF5;
  --ink: #1B2836;
  --muted: #5C6B7A;
  --line: #D5E0EA;
  --primary: #3F6E96;
  --primary-deep: #2C5274;
  --accent: #B08968;
  --card: #FFFFFF;
  --shadow: 0 10px 28px rgba(27,40,54,.08);
  --radius: 18px;
}
*, *::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;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.3; color: var(--ink); }
body h1 { font-size: 32px; letter-spacing: -0.02em; }
body h2 { font-size: 28px; }
body h3 { font-size: 20px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.wrap {
  width: min(1152px, calc(100% - 32px));
  margin-inline: auto;
}
.site-header { position: sticky; top: 0; z-index: 40; }
.promo {
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--bg-alt);
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.promo p { margin: 0; }
.promo button {
  border: 0;
  background: transparent;
  color: var(--primary-deep);
  border-radius: 999px;
  padding: 0 8px;
  min-height: 24px;
}
.nav {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background:
    linear-gradient(var(--primary), var(--primary)) center/12px 1px no-repeat,
    linear-gradient(var(--primary), var(--primary)) center/1px 12px no-repeat,
    var(--bg);
  box-shadow: inset 0 0 0 6px rgba(63,110,150,.08);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 12px 10px;
  color: var(--ink);
  border-radius: 999px;
}
.nav-links a:hover { color: var(--primary-deep); }
.nav-links a.active {
  color: var(--primary-deep);
  box-shadow: inset 0 -2px 0 var(--primary);
  border-radius: 0;
}
.search { position: relative; flex: 1; max-width: 280px; }
.search input, .drawer input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  padding: 0 16px;
  outline: none;
}
.search input:focus, .drawer input:focus { border-color: var(--primary); background: #fff; }
.search-panel, .pop {
  position: absolute;
  z-index: 30;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.search-panel { top: calc(100% + 8px); left: 0; right: 0; padding: 8px; }
.search-panel a, .pop a { display: block; padding: 8px 10px; border-radius: 999px; }
.search-panel a:hover, .pop a:hover, .drawer a:hover { background: var(--bg-alt); }
.empty { margin: 0; padding: 8px 10px; color: var(--muted); }
.tools { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.icon-btn, .menu-btn {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.icon-btn:hover, .menu-btn:hover { border-color: var(--primary); color: var(--primary-deep); transform: translateY(-1px); }
.icon-btn:active, .menu-btn:active { transform: none; background: var(--bg-alt); }
.icon { width: 20px; height: 20px; }
.dot {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  line-height: 18px;
  text-align: center;
}
.tool { position: relative; }
.pop { top: calc(100% + 10px); right: 0; width: 280px; padding: 14px; }
.pop strong, .pop span { display: block; }
.pop span, .muted { color: var(--muted); }
.menu-btn { display: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 650;
  font-size: 15px;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-deep); transform: translateY(-1px); }
.btn-primary:active { transform: none; background: #23425e; }
.btn-ghost { background: transparent; color: var(--primary-deep); border-color: var(--primary); }
.btn-ghost:hover { background: var(--bg-alt); transform: translateY(-1px); }
.btn-ghost:active { transform: none; background: #d5e1ec; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.hero, .section { padding: 56px 0; }
.hero { background: var(--bg); }
.section-alt { background: var(--bg-alt); }
.section-plain { background: var(--bg); }
.flash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  margin-bottom: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.flash b {
  font-size: 28px;
  letter-spacing: .08em;
  color: var(--accent);
  font-weight: 700;
}
.hero-grid, .split, .demo, .compare, .rep, .news, .tail, .faq-grid, .metric-wrap {
  display: grid;
  gap: 28px;
}
.hero-grid { grid-template-columns: 1.15fr .85fr; align-items: center; }
.lead { font-size: 16px; color: var(--ink); max-width: 680px; }
.hero-actions, .more-row, .cta-actions, .pick { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-actions { margin-top: 22px; }
.stage { position: relative; min-height: 360px; }
.ticks {
  position: absolute;
  inset: 18px -8px -8px 18px;
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(90deg, rgba(63,110,150,.18) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(0deg, rgba(63,110,150,.18) 0 1px, transparent 1px 28px);
  mask-image: linear-gradient(180deg, transparent, #000 18%, #000 82%, transparent);
}
.cover {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
  background: #dfe8f1;
}
.cover-back { position: absolute; inset: 28px 0 0 34px; opacity: .7; }
.cover-front { position: relative; z-index: 1; }
.room {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.35), rgba(27,40,54,.18)),
    linear-gradient(90deg, #e7eef5, #f7f4ef 58%, #e7eef5);
}
.window {
  position: absolute;
  left: 12%;
  top: 16%;
  width: 34%;
  height: 42%;
  border-radius: var(--radius);
  border: 8px solid rgba(255,255,255,.8);
  background: linear-gradient(180deg, #c9d7e6, #8eabc4);
}
.lamp {
  position: absolute;
  right: 18%;
  top: 22%;
  width: 54px;
  height: 54px;
  border-radius: 999px;
  background: rgba(176,137,104,.45);
  box-shadow: 0 0 0 12px rgba(176,137,104,.15);
}
.table {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 18%;
  height: 12px;
  border-radius: 999px;
  background: rgba(27,40,54,.18);
}
.cover-cap {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.92);
  border: 1px solid var(--line);
}
.cover-cap strong, .cover-cap span { display: block; }
.coord {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
}
.sec-head { max-width: 760px; margin-bottom: 28px; }
.kicker { color: var(--accent); font-size: 13px; letter-spacing: .08em; margin-bottom: 8px; }
.bento {
  display: grid;
  grid-template-columns: 1.35fr .82fr .82fr;
  grid-template-areas:
    "sub tag tag"
    "sub pace member";
  gap: 18px;
}
.feat-sub { grid-area: sub; }
.feat-tag { grid-area: tag; }
.feat-pace { grid-area: pace; }
.feat-member { grid-area: member; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-1px); }
.card:active { transform: none; }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--bg-alt);
  color: var(--primary-deep);
  font-size: 13px;
}
.badge-accent { background: rgba(176,137,104,.16); color: #7a5b42; }
.scene { display: flex; flex-direction: column; gap: 14px; }
.scene li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.scene li:nth-child(2) { margin-left: 56px; }
.scene li:nth-child(3) { margin-right: 40px; }
.scene li:nth-child(4) { margin-left: 88px; }
.idx { color: var(--primary); font-weight: 700; letter-spacing: .06em; }
.demo { grid-template-columns: 1.35fr .75fr; align-items: stretch; }
.screen { padding: 0; overflow: hidden; }
.screen .room { border-radius: 0; }
.progress {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.7);
  z-index: 2;
}
.progress span { display: block; width: 62%; height: 100%; border-radius: 999px; background: var(--primary); }
.subline { display: flex; flex-direction: column; gap: 12px; }
.subline li {
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
}
.time { color: var(--accent); font-size: 13px; }
.zones { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
.zone { min-height: 240px; display: flex; flex-direction: column; justify-content: space-between; }
.zone-wide { background:
  linear-gradient(180deg, rgba(255,255,255,.6), rgba(255,255,255,.9)),
  repeating-linear-gradient(90deg, transparent 0 26px, rgba(63,110,150,.08) 27px);
}
.compare { grid-template-columns: 1fr 1fr; }
.col {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.col + .col { background: #f8f5f1; }
.metric-wrap { grid-template-columns: .75fr 1.25fr; align-items: start; }
.metrics { display: grid; gap: 14px; }
.metric { display: grid; grid-template-columns: 140px 1fr; gap: 12px; align-items: center; }
.metric b { display: block; font-size: 34px; color: var(--primary-deep); line-height: 1; }
.price-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 18px; }
.plan-wide { background:
  linear-gradient(180deg, rgba(63,110,150,.06), transparent 80px),
  var(--card);
}
.plan ul { margin-top: 14px; display: grid; gap: 8px; }
.plan li { padding-left: 14px; position: relative; }
.plan li::before { content: ""; width: 6px; height: 6px; border-radius: 999px; background: var(--accent); position: absolute; left: 0; top: .7em; }
.price { font-size: 36px; color: var(--primary-deep); margin: 10px 0; }
.price small { font-size: 16px; color: var(--muted); font-weight: 500; }
.rows { margin-top: 18px; display: grid; gap: 10px; }
.rows div { display: grid; grid-template-columns: 120px 1fr 1fr; gap: 10px; padding: 12px 16px; }
.wall { columns: 3; column-gap: 18px; }
.wall article { break-inside: avoid; margin: 0 0 18px; }
.rep { grid-template-columns: 1.35fr .75fr; }
.quote { font-size: 18px; line-height: 1.75; }
.side { display: flex; flex-direction: column; gap: 12px; }
.news { grid-template-columns: 1.15fr .85fr; }
.news-side { display: flex; flex-direction: column; gap: 14px; }
.more-row { margin-top: 18px; }
.rail { margin-left: 8px; border-left: 1px solid var(--line); display: grid; gap: 16px; }
.rail article { position: relative; margin-left: 22px; }
.rail article::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 2px solid var(--primary);
  background: #fff;
  position: absolute;
  left: -29px;
  top: 24px;
}
.sheet { display: grid; gap: 12px; }
.sheet article { display: grid; grid-template-columns: 120px 1fr auto; gap: 16px; align-items: center; }
.tail {
  grid-template-columns: 1.3fr .7fr;
  align-items: center;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.pick label {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
}
.faq-grid { grid-template-columns: .7fr 1.3fr; }
.faq { border-bottom: 1px solid var(--line); }
.faq summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 22px; }
.faq[open] summary::after { content: "–"; }
.faq p { padding-bottom: 16px; color: var(--muted); }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 40px 0 28px; }
.foot {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: start;
}
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.foot a:hover { color: var(--primary-deep); }
.copy { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.mask { position: fixed; inset: 0; background: rgba(27,40,54,.35); z-index: 60; }
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(400px, 100%);
  background: #fff;
  z-index: 70;
  padding: 22px 16px 32px;
  overflow: auto;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform .25s ease;
}
.drawer.open { transform: none; visibility: visible; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.drawer-nav { display: grid; gap: 6px; margin: 16px 0; }
.drawer-nav a { padding: 12px 8px; border-bottom: 1px solid var(--line); }
body.lock { overflow: hidden; }
@media (min-width: 1024px) {
  body { font-size: 17px; }
  body h1 { font-size: 46px; }
  body h2 { font-size: 32px; }
  .wrap { width: min(1152px, calc(100% - 64px)); }
  .hero, .section { padding: 104px 0; }
}
@media (max-width: 1023px) {
  .nav-links, .search, .tools .btn, .desk-pop { display: none; }
  .menu-btn { display: inline-flex; }
  .hero-grid, .bento, .demo, .zones, .compare, .metric-wrap, .price-grid, .rep, .news, .tail, .faq-grid, .sheet article, .rows div, .metric {
    grid-template-columns: 1fr;
    grid-template-areas: none;
  }
  .feat-sub, .feat-tag, .feat-pace, .feat-member { grid-area: auto; }
  .wall { columns: 2; }
  .scene li:nth-child(n) { margin: 0; }
}
@media (max-width: 767px) {
  .hero, .section { padding: 56px 0; }
  body h1 { font-size: 32px; }
  body h2 { font-size: 28px; }
  .flash, .foot, .scene li { display: flex; flex-direction: column; align-items: flex-start; }
  .cover-back { display: none; }
  .stage { min-height: 0; }
  .wall { columns: 1; }
  .plan-wide { order: -1; }
  .price-grid { display: flex; flex-direction: column; }
}
@media (max-width: 640px) {
  .promo { justify-content: space-between; }
  .logo span:last-child { font-size: 15px; }
  .metric b, .price, .flash b { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category2 */
:root {
 --bg: #F3F6FA;
 --bg-alt: #E7EEF5;
 --ink: #1B2836;
 --muted: #5C6B7A;
 --line: #D5E0EA;
 --primary: #3F6E96;
 --primary-deep: #2C5274;
 --accent: #B08968;
 --card: #FFFFFF;
 --shadow: 0 10px 28px rgba(27,40,54,.08);
 --radius: 18px;
}
/* roulang page: index */
:root {
 --bg: #F3F6FA;
 --bg-alt: #E7EEF5;
 --ink: #1B2836;
 --muted: #5C6B7A;
 --line: #D5E0EA;
 --primary: #3F6E96;
 --primary-deep: #2C5274;
 --accent: #B08968;
 --card: #FFFFFF;
 --shadow: 0 10px 28px rgba(27,40,54,.08);
 --radius: 18px;
}
*, *::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;
 line-height: 1.75;
 color: var(--ink);
 background: var(--bg);
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
body h1 { font-size: 44px; line-height: 1.25; letter-spacing: -0.03em; margin: 12px 0; font-weight: 750; }
body h2 { font-size: 30px; line-height: 1.35; margin: 0 0 16px; font-weight: 750; letter-spacing: -0.02em; }
body h3 { font-size: 20px; line-height: 1.45; margin: 0 0 8px; font-weight: 700; }
p { margin: 0; }
.wrap { width: min(1152px, 100%); margin: 0 auto; padding: 0 16px; }
.site-header { position: sticky; top: 0; z-index: 40; }
.promo { min-height: 32px; background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.promo-inner { min-height: 32px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--primary-deep); }
.promo button {
 border: 0;
 background: transparent;
 color: var(--primary-deep);
 border-radius: 999px;
 padding: 0 8px;
 min-height: 24px;
}
.nav { background: var(--card); border-bottom: 1px solid var(--line); }
.nav-inner { min-height: 72px; display: flex; align-items: center; gap: 18px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; white-space: nowrap; }
.logo-mark {
 width: 28px; height: 28px; border-radius: 999px; border: 1px solid var(--line);
 background:
  linear-gradient(var(--primary), var(--primary)) center/12px 1px no-repeat,
  linear-gradient(var(--primary), var(--primary)) center/1px 12px no-repeat,
  var(--bg);
 box-shadow: inset 0 0 0 6px rgba(63,110,150,.08);
 flex: none;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 8px 12px 10px; color: var(--ink); border-radius: 999px; }
.nav-links a:hover { color: var(--primary-deep); }
.nav-links a.active { color: var(--primary-deep); box-shadow: inset 0 -2px 0 var(--primary); border-radius: 0; }
.search { position: relative; flex: 1; max-width: 280px; }
.search input, .drawer input {
 width: 100%; height: 42px; border: 1px solid var(--line); border-radius: 999px;
 background: var(--bg); padding: 0 16px; outline: none;
}
.search input:focus, .drawer input:focus { border-color: var(--primary); background: #fff; }
.search-panel, .pop {
 position: absolute; z-index: 30; background: var(--card); border: 1px solid var(--line);
 border-radius: var(--radius); box-shadow: var(--shadow);
}
.search-panel { top: calc(100% + 8px); left: 0; right: 0; padding: 8px; }
.search-panel a, .pop a { display: block; padding: 8px 10px; border-radius: 999px; }
.search-panel a:hover, .pop a:hover, .drawer a:hover { background: var(--bg-alt); }
.tool { position: relative; }
.pop { top: calc(100% + 8px); right: 0; width: 280px; padding: 8px; }
.pop a { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.icon-btn, .menu-btn {
 width: 42px; height: 42px; border-radius: 999px; border: 1px solid var(--line);
 background: var(--card); color: var(--ink); display: inline-flex; align-items: center;
 justify-content: center; position: relative; transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.icon-btn svg, .menu-btn svg { width: 18px; height: 18px; }
.icon-btn:hover, .menu-btn:hover { border-color: var(--primary); color: var(--primary-deep); transform: translateY(-1px); }
.icon-btn:active, .menu-btn:active { transform: none; background: var(--bg-alt); }
.pop span, .muted { color: var(--muted); }
.menu-btn { display: none; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
 padding: 0 22px; border-radius: 999px; border: 1px solid transparent; font-weight: 650;
 font-size: 15px; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-deep); transform: translateY(-1px); }
.btn-primary:active { transform: none; background: #23425e; }
.btn-ghost { background: transparent; color: var(--primary-deep); border-color: var(--primary); }
.btn-ghost:hover { background: var(--bg-alt); transform: translateY(-1px); }
.btn-ghost:active { transform: none; background: #d5e1ec; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
 outline: 2px solid var(--primary); outline-offset: 2px;
}
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-plain { background: var(--bg); }
.lead { font-size: 17px; color: var(--ink); max-width: 720px; }
.badge {
 display: inline-flex; align-items: center; min-height: 28px; padding: 0 12px; border-radius: 999px;
 background: var(--bg-alt); color: var(--primary-deep); font-size: 13px;
}
.badge-accent { background: rgba(176,137,104,.16); color: #7a5b42; }
.card {
 background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); padding: 22px; transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-1px); }
.card:active { transform: none; }
.head-block { position: relative; overflow: hidden; padding-top: 88px; padding-bottom: 88px; }
.head-block::after {
 content: ""; position: absolute; inset: 0 auto 0 55%;
 background:
  radial-gradient(circle at 70% 20%, rgba(63,110,150,.12), transparent 46%),
  repeating-linear-gradient(90deg, transparent 0 22px, rgba(63,110,150,.08) 22px 23px);
 mask-image: linear-gradient(90deg, transparent, #000 30%, #000 70%, transparent);
 pointer-events: none;
}
.ticks { position: absolute; right: 8%; top: 42px; z-index: 1; display: flex; gap: 16px; color: var(--primary); opacity: .45; font-size: 12px; letter-spacing: .18em; }
.chips { display: flex; gap: 8px; overflow-x: auto; margin-top: 22px; padding-bottom: 4px; position: relative; z-index: 1; }
.chip {
 border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 999px;
 min-height: 38px; padding: 0 16px; white-space: nowrap; transition: background .2s ease, color .2s ease, transform .2s ease;
}
.chip:hover { transform: translateY(-1px); border-color: var(--primary); color: var(--primary-deep); }
.chip:active { transform: none; }
.chip[aria-pressed="true"] { background: var(--primary); color: #fff; border-color: var(--primary); }
.rail { position: relative; display: grid; }
.rail::before { content: ""; position: absolute; left: 132px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.rail-item { display: grid; grid-template-columns: 132px 1fr; gap: 28px; padding: 8px 0 22px; }
.rail-item.is-hidden, .rail-item[data-extra="1"] { display: none; }
.rail.is-open .rail-item[data-extra="1"] { display: grid; }
.rail.is-open .rail-item.is-hidden { display: none; }
.date-col { position: relative; color: var(--primary-deep); font-weight: 700; padding-top: 18px; }
.date-col::after {
 content: ""; position: absolute; right: -6px; top: 28px; width: 11px; height: 11px; border-radius: 999px;
 background: #fff; border: 2px solid var(--primary); box-shadow: 0 0 0 4px rgba(63,110,150,.08);
}
.item-body { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px 22px; }
.item-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.pill { display: inline-flex; align-items: center; min-height: 26px; padding: 0 10px; border-radius: 999px; background: var(--bg-alt); color: var(--primary-deep); font-size: 13px; }
.pill-warm { background: rgba(176,137,104,.16); color: #7a5b42; }
.band-list { display: grid; gap: 14px; }
.band {
 display: grid; grid-template-columns: 92px 1fr 220px; gap: 18px; align-items: center;
 background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px 24px;
}
.band-no { font-size: 28px; color: var(--accent); letter-spacing: .08em; font-weight: 700; }
.range-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 18px; align-items: stretch; }
.range-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; }
.range-row { display: grid; grid-template-columns: 96px 1fr; gap: 12px; padding: 16px 18px; border-radius: 14px; }
.range-row + .range-row { margin-top: 4px; }
.range-row:nth-child(odd) { background: var(--bg); }
.range-row strong { color: var(--primary-deep); }
.side-note { background: #f8f5f1; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; }
.quote-grid { display: grid; grid-template-columns: 1.35fr .82fr .82fr; gap: 16px; }
.quote { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.quote p + p { margin-top: 14px; }
.news-list { display: grid; gap: 12px; }
.news-row {
 display: grid; grid-template-columns: 120px 1fr auto; gap: 18px; align-items: center;
 background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px;
 transition: transform .2s ease, border-color .2s ease;
}
.news-row:hover { transform: translateY(-1px); border-color: var(--primary); }
.tail-bar {
 display: flex; justify-content: space-between; gap: 24px; align-items: center;
 background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 32px;
}
.cta-actions, .hero-actions, .more-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 40px 0 28px; }
.foot { display: flex; justify-content: space-between; gap: 28px; align-items: flex-start; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.foot a:hover { color: var(--primary-deep); }
.copy { color: var(--muted); font-size: 13px; margin: 18px 0 0; }
.overlay { position: fixed; inset: 0; background: rgba(27,40,54,.28); z-index: 60; }
.drawer {
 position: fixed; top: 0; right: 0; bottom: 0; width: min(400px, 100%); background: #fff; z-index: 70;
 padding: 22px 16px 32px; overflow: auto; transform: translateX(100%); visibility: hidden; transition: transform .25s ease, visibility .25s ease;
}
.drawer.open { transform: none; visibility: visible; }
.drawer nav { display: grid; gap: 6px; margin: 18px 0; }
.drawer nav a { padding: 12px 14px; border-radius: 999px; }
.drawer nav a.active { color: var(--primary-deep); box-shadow: inset 0 -2px 0 var(--primary); border-radius: 0; }
.drawer-tools { display: grid; gap: 10px; margin-top: 12px; }
[hidden] { display: none !important; }
@media (min-width: 1024px) {
 .wrap { padding: 0 32px; }
}
@media (max-width: 1024px) {
 .nav-links, .search, .desk-only { display: none; }
 .menu-btn { display: inline-flex; margin-left: auto; }
 .quote-grid, .range-grid { grid-template-columns: 1fr; }
 .band { grid-template-columns: 72px 1fr; }
 .band-side { grid-column: 1 / -1; }
 .section { padding: 64px 0; }
 .head-block { padding-top: 56px; padding-bottom: 56px; }
}
@media (max-width: 768px) {
 .ticks, .head-block::after, .rail::before, .date-col::after { display: none; }
 .rail-item, .rail.is-open .rail-item[data-extra="1"] { grid-template-columns: 1fr; gap: 8px; }
 .news-row, .tail-bar, .foot, .item-top { display: flex; flex-direction: column; align-items: flex-start; }
 .date-col { padding-top: 0; }
 body h1 { font-size: 32px; }
 body h2 { font-size: 26px; }
 .section { padding: 56px 0; }
}
@media (max-width: 640px) {
 .logo span { font-size: 15px; }
 .nav-inner { min-height: 64px; gap: 10px; }
 .promo-inner { font-size: 12px; }
 .band { grid-template-columns: 1fr; }
 .btn { width: 100%; }
 .cta-actions { width: 100%; }
}

/* roulang page: category1 */
:root {
 --bg: #F3F6FA;
 --bg-alt: #E7EEF5;
 --ink: #1B2836;
 --muted: #5C6B7A;
 --line: #D5E0EA;
 --primary: #3F6E96;
 --primary-deep: #2C5274;
 --accent: #B08968;
 --card: #FFFFFF;
 --shadow: 0 10px 28px rgba(27,40,54,.08);
 --radius: 18px;
}
/* roulang page: category1 */
:root {
 --bg: #F3F6FA;
 --bg-alt: #E7EEF5;
 --ink: #1B2836;
 --muted: #5C6B7A;
 --line: #D5E0EA;
 --primary: #3F6E96;
 --primary-deep: #2C5274;
 --accent: #B08968;
 --card: #FFFFFF;
 --shadow: 0 10px 28px rgba(27,40,54,.08);
 --radius: 18px;
}
*, *::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;
 line-height: 1.75;
 color: var(--ink);
 background: var(--bg);
}
img, svg { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
body h1 { font-size: 32px; line-height: 1.25; letter-spacing: -0.02em; font-weight: 700; }
body h2 { font-size: 28px; line-height: 1.35; font-weight: 700; }
body h3 { font-size: 20px; line-height: 1.4; font-weight: 700; }
.wrap {
 width: min(1152px, calc(100% - 32px));
 margin-inline: auto;
}
.site-header { position: sticky; top: 0; z-index: 40; }
.promo {
 height: 32px;
 background: var(--bg-alt);
 color: var(--primary-deep);
 border-bottom: 1px solid var(--line);
}
.promo-inner {
 height: 32px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 font-size: 13px;
}
.promo button {
 border: 0;
 background: transparent;
 color: var(--primary-deep);
 border-radius: 999px;
 padding: 0 8px;
 min-height: 24px;
}
.promo button:hover { background: rgba(63,110,150,.08); }
.nav {
 background: var(--card);
 border-bottom: 1px solid var(--line);
}
.nav-inner {
 min-height: 72px;
 display: flex;
 align-items: center;
 gap: 18px;
}
.logo {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 font-weight: 700;
 font-size: 18px;
 white-space: nowrap;
 color: var(--ink);
}
.logo-mark {
 width: 28px;
 height: 28px;
 flex: 0 0 28px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background:
  linear-gradient(var(--primary), var(--primary)) center/12px 1px no-repeat,
  linear-gradient(var(--primary), var(--primary)) center/1px 12px no-repeat,
  var(--bg);
 box-shadow: inset 0 0 0 6px rgba(63,110,150,.08);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
 padding: 8px 12px 10px;
 color: var(--ink);
 border-radius: 999px;
}
.nav-links a:hover { color: var(--primary-deep); }
.nav-links a.active {
 color: var(--primary-deep);
 box-shadow: inset 0 -2px 0 var(--primary);
 border-radius: 0;
}
.search { position: relative; flex: 1; max-width: 280px; }
.search input, .drawer input {
 width: 100%;
 height: 42px;
 border: 1px solid var(--line);
 border-radius: 999px;
 background: var(--bg);
 padding: 0 16px;
 outline: none;
}
.search input:focus, .drawer input:focus { border-color: var(--primary); background: #fff; }
.search input::placeholder, .drawer input::placeholder { color: var(--muted); }
.search-panel, .pop {
 position: absolute;
 z-index: 30;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.search-panel { top: calc(100% + 8px); left: 0; right: 0; padding: 8px; }
.search-panel a, .pop a { display: block; padding: 8px 10px; border-radius: 999px; color: var(--ink); }
.search-panel a:hover, .pop a:hover, .drawer a:hover { background: var(--bg-alt); }
.tool { position: relative; }
.icon-btn, .menu-btn {
 width: 42px;
 height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--card);
 color: var(--ink);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 position: relative;
 transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
}
.icon-btn:hover, .menu-btn:hover { border-color: var(--primary); color: var(--primary-deep); transform: translateY(-1px); }
.icon-btn:active, .menu-btn:active { transform: none; background: var(--bg-alt); }
.icon-btn svg, .menu-btn svg { width: 18px; height: 18px; }
.dot {
 position: absolute;
 top: 6px;
 right: 6px;
 min-width: 16px;
 height: 16px;
 padding: 0 4px;
 border-radius: 999px;
 background: var(--accent);
 color: #fff;
 font-size: 10px;
 line-height: 16px;
 text-align: center;
}
.pop { top: calc(100% + 8px); right: 0; width: 240px; padding: 12px; }
.pop[hidden], .search-panel[hidden] { display: none; }
.pop p { font-size: 13px; margin-bottom: 6px; }
.pop span, .muted { color: var(--muted); }
.menu-btn { display: none; }
.desk-tools { display: flex; align-items: center; gap: 8px; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 22px;
 border-radius: 999px;
 border: 1px solid transparent;
 font-weight: 650;
 font-size: 15px;
 transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-deep); transform: translateY(-1px); }
.btn-primary:active { transform: none; background: #23425e; }
.btn-ghost { background: transparent; color: var(--primary-deep); border-color: var(--primary); }
.btn-ghost:hover { background: var(--bg-alt); transform: translateY(-1px); }
.btn-ghost:active { transform: none; background: #d5e1ec; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
 outline: 2px solid var(--primary);
 outline-offset: 2px;
}
.section { padding: 56px 0; }
.section-alt { background: var(--bg-alt); }
.section-plain { background: var(--bg); }
.kicker { margin-bottom: 8px; }
.lead { font-size: 17px; color: var(--ink); max-width: 640px; }
.card {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 22px;
 transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-1px); box-shadow: 0 14px 32px rgba(27,40,54,.1); }
.card:active { transform: none; }
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 12px;
 border-radius: 999px;
 background: var(--bg-alt);
 color: var(--primary-deep);
 font-size: 13px;
}
.badge-accent { background: rgba(176,137,104,.16); color: #7a5b42; }
.cat-top {
 display: grid;
 grid-template-columns: 1.35fr .75fr;
 gap: 28px;
 align-items: end;
}
.filter-box { position: relative; overflow: hidden; }
.filter-box::before {
 content: "";
 position: absolute;
 width: 120px;
 height: 120px;
 right: -28px;
 top: -36px;
 border: 1px solid var(--line);
 border-radius: 999px;
 background:
  linear-gradient(var(--primary), var(--primary)) center/46px 1px no-repeat,
  linear-gradient(var(--primary), var(--primary)) center/1px 46px no-repeat;
 opacity: .7;
 pointer-events: none;
}
.count-row { margin-top: 16px; display: grid; gap: 10px; position: relative; }
.count-row div {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 padding-bottom: 8px;
 border-bottom: 1px solid var(--line);
}
.count-row strong { font-weight: 700; }
.wall {
 display: grid;
 grid-template-columns: 1.35fr .82fr .82fr;
 gap: 18px;
 align-items: stretch;
}
.span-2 { grid-column: span 2; }
.cover {
 aspect-ratio: 16 / 9;
 border-radius: var(--radius);
 border: 1px solid var(--line);
 position: relative;
 overflow: hidden;
 background-color: var(--bg-alt);
 background-image:
  repeating-linear-gradient(90deg, transparent 0 22px, rgba(63,110,150,.2) 22px 23px),
  repeating-linear-gradient(0deg, transparent 0 22px, rgba(63,110,150,.2) 22px 23px);
}
.cover::after {
 content: "";
 position: absolute;
 inset: 0;
 background: linear-gradient(180deg, rgba(243,246,250,0) 40%, rgba(243,246,250,.92) 100%);
}
.cover i {
 position: absolute;
 z-index: 1;
 left: 14px;
 bottom: 12px;
 font-style: normal;
 font-size: 12px;
 letter-spacing: .08em;
 color: var(--primary-deep);
}
.cover b {
 position: absolute;
 z-index: 1;
 right: 14px;
 top: 12px;
 width: 28px;
 height: 28px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background:
  linear-gradient(var(--accent), var(--accent)) center/12px 1px no-repeat,
  linear-gradient(var(--accent), var(--accent)) center/1px 12px no-repeat;
}
.series-name { margin: 14px 0 6px; }
.meta-line {
 display: flex;
 flex-wrap: wrap;
 gap: 8px 12px;
 align-items: center;
 color: var(--muted);
 font-size: 14px;
}
.note { margin-top: 10px; color: var(--ink); }
.head-row {
 display: flex;
 justify-content: space-between;
 gap: 18px;
 align-items: end;
 margin-bottom: 22px;
}
.head-row p { max-width: 520px; }
.spec-list { display: grid; gap: 12px; }
.spec-list li {
 list-style: none;
 display: grid;
 grid-template-columns: 88px 1fr;
 gap: 16px;
 align-items: center;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 18px 22px;
}
.spec-list { margin: 0; padding: 0; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
 display: inline-flex;
 align-items: center;
 min-height: 40px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--card);
 color: var(--primary-deep);
 box-shadow: var(--shadow);
}
.pill:hover { border-color: var(--primary); transform: translateY(-1px); }
.pill:active { transform: none; background: var(--bg-alt); }
.timeline { margin: 0; padding: 0; list-style: none; position: relative; }
.timeline::before {
 content: "";
 position: absolute;
 left: 118px;
 top: 8px;
 bottom: 8px;
 width: 1px;
 background: var(--line);
}
.t-item {
 display: grid;
 grid-template-columns: 96px 1fr;
 gap: 36px;
 padding: 18px 0;
}
.t-item time { color: var(--primary-deep); font-weight: 700; }
.t-card h3 { margin-bottom: 4px; }
.article-list { display: grid; gap: 12px; }
.article-row {
 display: grid;
 grid-template-columns: 108px 1fr auto;
 gap: 18px;
 align-items: center;
}
.article-row:hover { border-color: var(--primary); }
.more-box { max-width: 760px; }
.more-box summary { width: fit-content; list-style: none; }
.more-box summary::-webkit-details-marker { display: none; }
.extra { margin-top: 16px; display: grid; gap: 10px; }
.extra li {
 list-style: none;
 display: flex;
 justify-content: space-between;
 gap: 12px;
 flex-wrap: wrap;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 padding: 14px 18px;
 box-shadow: var(--shadow);
}
.extra { margin-left: 0; padding: 0; }
.narrow {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 18px;
 background: var(--bg-alt);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 padding: 22px 24px;
}
.narrow p { color: var(--muted); margin-top: 6px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 40px 0 28px; }
.foot {
 display: flex;
 justify-content: space-between;
 gap: 28px;
 align-items: flex-start;
}
.foot .logo { margin-bottom: 8px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.foot a:hover { color: var(--primary-deep); }
.copy { margin: 22px 0 0; color: var(--muted); font-size: 13px; }
.mask {
 position: fixed;
 inset: 0;
 background: rgba(27,40,54,.38);
 z-index: 60;
 opacity: 0;
 visibility: hidden;
 transition: opacity .2s ease, visibility .2s ease;
}
.mask.show { opacity: 1; visibility: visible; }
.drawer {
 position: fixed;
 top: 0;
 right: 0;
 bottom: 0;
 width: min(400px, 100%);
 background: #fff;
 z-index: 70;
 padding: 22px 16px 32px;
 overflow: auto;
 transform: translateX(100%);
 visibility: hidden;
 transition: transform .2s ease, visibility .2s ease;
 border-left: 1px solid var(--line);
}
.drawer.open { transform: none; visibility: visible; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.drawer nav { display: grid; gap: 4px; margin: 14px 0; }
.drawer nav a { padding: 10px 12px; border-radius: 999px; }
.drawer nav a.active { color: var(--primary-deep); box-shadow: inset 0 -2px 0 var(--primary); border-radius: 0; }
.drawer .stack { display: grid; gap: 10px; margin-top: 14px; }
@media (min-width: 1024px) {
 .wrap { width: min(1152px, calc(100% - 64px)); }
 .section { padding: 96px 0; }
 body h1 { font-size: 44px; }
 body h2 { font-size: 30px; }
}
@media (max-width: 1279px) {
 .wall { grid-template-columns: 1.2fr .8fr .8fr; }
}
@media (max-width: 1023px) {
 .nav-links, .search, .desk-tools, .desk-cta { display: none; }
 .menu-btn { display: inline-flex; margin-left: auto; }
 .cat-top, .article-row { grid-template-columns: 1fr; }
 .wall { grid-template-columns: 1fr 1fr; }
 .span-2 { grid-column: span 2; }
 .timeline::before { left: 92px; }
 .head-row, .narrow, .foot { display: grid; }
}
@media (max-width: 767px) {
 .section { padding: 56px 0; }
 .wall, .spec-list li, .t-item { grid-template-columns: 1fr; }
 .span-2 { grid-column: auto; }
 .timeline::before { display: none; }
 .t-item { gap: 4px; }
 .logo { font-size: 16px; }
 body h1 { font-size: 32px; }
 body h2 { font-size: 26px; }
}
@media (max-width: 639px) {
 .wrap { width: min(1152px, calc(100% - 32px)); }
 .promo-inner { font-size: 12px; }
 .card, .spec-list li, .narrow { padding: 16px; }
 .article-row { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 * { transition: none !important; }
}