/* roulang page: index */
:root {
  --paper: #F3F0EA;
  --paper-2: #EFEBE4;
  --card: #FBF9F6;
  --ink: #161513;
  --muted: #5E5A54;
  --line: #E6E1D8;
  --lime: #C6F24E;
  --ochre: #C46A3A;
  --shadow: 0 8px 24px rgba(22,21,19,.06);
  --radius: 16px;
  --radius-btn: 999px;
  --radius-input: 12px;
  --max: 1120px;
  --nav-h: 72px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; object-fit: cover; }
button, input { font-family: inherit; color: inherit; }
h1, h2, h3, p { margin: 0; letter-spacing: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--lime); color: var(--ink); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.muted { color: var(--muted); max-width: 38em; }
.num { letter-spacing: 0.06em; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  color: var(--ink);
}
.logo:hover { text-decoration: none; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  white-space: nowrap;
  text-decoration: none;
}
.nav-links a:hover { background: var(--line); text-decoration: none; }
.nav-links a.active { background: var(--ink); color: var(--lime); }
.header-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-search {
  width: 180px;
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-input);
  background: var(--card);
  transition: width 150ms ease, box-shadow 150ms ease;
  position: relative;
}
.nav-search:focus-within { width: 240px; box-shadow: 0 0 0 2px var(--lime); }
.nav-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-size: 16px;
  line-height: 1.4;
  padding: 0;
}
.nav-search input:focus { outline: none; }
.nav-search input::placeholder { color: var(--muted); }
.search-icon {
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: 0 0 auto;
}
kbd {
  font-family: var(--font);
  font-size: 12px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 0 6px;
  color: var(--muted);
  background: var(--paper);
}
.text-link { font-size: 15px; white-space: nowrap; padding: 8px 4px; }
.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}
.menu-btn span { display: block; width: 16px; height: 1.5px; background: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--ink); color: var(--lime); }
.btn-primary:hover { background: #0c0b0a; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--line); }
.btn-lime { background: var(--lime); color: var(--ink); }
.btn-lime:hover { background: #d4f77a; }

.hero { padding: 36px 0 96px; }
.flash {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  margin-bottom: 40px;
}
.flash-label { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; white-space: nowrap; }
#count {
  color: var(--lime);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.flash-card {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border: 1px solid rgba(243,240,234,.22);
  border-radius: 12px;
  min-width: 0;
}
.flash-card strong { font-size: 16px; }
.flash-card span { color: #cfcabe; font-size: 13px; white-space: nowrap; }
.flash-price { color: var(--ochre); font-size: 20px; font-weight: 700; }
.hero-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 40px; align-items: center; }
h1 { font-size: clamp(36px, 5.2vw, 68px); font-weight: 700; line-height: 1.15; }
.lead { margin-top: 16px; font-size: 18px; max-width: 38em; }
.intro { margin-top: 14px; color: var(--muted); max-width: 38em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.stage-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #d7d1c7;
  box-shadow: var(--shadow);
}
.stage-frame img { width: 100%; aspect-ratio: 16/9; }
.lower {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: rgba(22,21,19,.94);
  color: var(--paper);
  padding: 12px 16px 14px;
}
.lower-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--lime);
  font-size: 15px;
  margin-bottom: 8px;
}
.lower ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.lower li span { display: block; color: var(--lime); font-size: 12px; line-height: 1.4; }
.lower li b { font-weight: 700; font-size: 14px; }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--paper); font-size: 12px; white-space: nowrap; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--lime);
  display: inline-block;
  animation: pulse 2.4s ease infinite;
}
.dot-ochre { background: var(--ochre); }
@keyframes pulse {
  0%, 70%, 100% { opacity: 1; }
  85% { opacity: .35; }
}

.section { padding: 96px 0; border-top: 1px solid var(--line); }
.section.band { background: var(--paper-2); }
h2 { font-size: clamp(32px, 3.3vw, 40px); font-weight: 700; line-height: 1.2; margin-bottom: 14px; }
h3 { font-size: 22px; font-weight: 700; line-height: 1.35; }
.section-head { margin-bottom: 28px; }
.section-head p { margin-top: 0; }

.score {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow);
}
.score-item { padding: 22px 20px 20px; border-right: 1px solid var(--line); }
.score-item:last-child { border-right: 0; }
.score-label { color: var(--muted); font-size: 14px; }
.score-num { margin-top: 8px; font-size: 44px; font-weight: 700; line-height: 1; }
.score-num i {
  display: block;
  width: 28px;
  height: 4px;
  margin-top: 12px;
  background: var(--lime);
  border-radius: 999px;
}
.score-note { margin-top: 8px; color: var(--muted); font-size: 14px; }

.feature-grid { display: grid; grid-template-columns: 1.45fr .8fr; gap: 16px; }
.feature-side { display: grid; gap: 16px; }
.feature-card, .case, .plan, .topic, .review, .scene {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 150ms ease, box-shadow 150ms ease;
}
.feature-card:hover, .case:hover, .plan:hover, .topic:hover, .review:hover, .scene:hover {
  transform: translateY(-2px);
}
.feature-card { padding: 28px; }
.feature-main { min-height: 100%; background: var(--ink); color: var(--paper); }
.feature-main p { color: #ddd8d0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 12px;
}
.feature-main .eyebrow { color: var(--lime); }
.feature-card p, .scene p, .case p, .topic p, .plan p { margin-top: 10px; }

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.compare article { padding: 36px 32px 40px; }
.compare-on { background: var(--ink); color: var(--paper); }
.compare-on .eyebrow { color: var(--lime); }
.compare-off { background: var(--card); }
.compare h3 { font-size: 32px; line-height: 1.25; margin-bottom: 12px; }
.compare-note { margin-top: 16px; }

.scenes { display: grid; grid-template-columns: 1.35fr 1fr .82fr; gap: 16px; }
.scene { overflow: hidden; }
.scene img { width: 100%; aspect-ratio: 16/9; border-bottom: 1px solid var(--line); }
.scene div { padding: 18px 18px 20px; }
.scene h3 { font-size: 20px; }

.demo-copy { margin-bottom: 20px; }
.lower { pointer-events: none; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.step { padding: 28px 22px 8px 0; }
.step + .step { border-left: 1px solid var(--line); padding-left: 22px; }
.step-no { font-size: 40px; font-weight: 700; line-height: 1; letter-spacing: 0.04em; }
.step-no i { display: block; width: 28px; height: 4px; background: var(--lime); margin: 12px 0 16px; }
.step h3 { font-size: 22px; margin-bottom: 8px; }

.cases { display: grid; grid-template-columns: 1.45fr .8fr; gap: 16px; }
.case { padding: 28px; }
.case-long { background: var(--ink); color: var(--paper); }
.case-long p { color: #ddd8d0; }
.case .eyebrow { color: var(--lime); }

.pricing { display: grid; grid-template-columns: 1fr 1.08fr 1fr; gap: 16px; align-items: stretch; }
.plan { padding: 24px 22px 22px; display: flex; flex-direction: column; }
.plan-rec { border-color: var(--ochre); }
.plan h3 { font-size: 24px; }
.price { margin: 12px 0 4px; color: var(--ochre); font-size: 40px; font-weight: 700; line-height: 1; }
.price small { font-size: 16px; font-weight: 700; margin-left: 2px; }
.plan ul { margin-top: 12px; }
.plan li { position: relative; padding-left: 16px; margin: 8px 0; }
.plan li::before {
  content: "";
  position: absolute;
  left: 0; top: .72em;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--lime);
  box-shadow: inset 0 0 0 1px var(--ink);
}
.plan .btn { width: 100%; margin-top: auto; padding-top: 0; }
.plan .btn { margin-top: 18px; }

.reviews { columns: 3; column-gap: 16px; }
.review {
  break-inside: avoid;
  margin: 0 0 16px;
  padding: 18px 18px 16px;
}
.review:nth-child(3n) { padding-bottom: 28px; }
.review:nth-child(2n) { padding-top: 22px; }
.review b { display: block; margin-bottom: 6px; }
.review p { color: var(--muted); }

.voice { display: grid; grid-template-columns: 1.7fr .55fr; gap: 28px; align-items: start; }
.quote {
  margin: 0;
  padding: 8px 0 8px 18px;
  border-left: 3px solid var(--ink);
  font-size: 20px;
  line-height: 1.7;
}
.quote footer { margin-top: 14px; color: var(--muted); font-size: 14px; }
.tags { display: flex; flex-direction: column; gap: 10px; }
.tag {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius-btn);
  padding: 8px 14px;
  text-align: center;
  font-weight: 700;
}

.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  transition: background 150ms ease;
}
.news-item:hover { background: rgba(22,21,19,.03); }
.news-item time { color: var(--muted); font-variant-numeric: tabular-nums; }
.news-item h3 { font-size: 18px; }
.news-item a:hover { text-decoration: none; }
.news-item h3 a:hover { text-decoration: underline; }
.news-item p { color: var(--muted); margin-top: 4px; }
.news-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.topics { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.topic { padding: 28px; display: flex; flex-direction: column; min-height: 230px; }
.topic .btn { align-self: flex-start; margin-top: 18px; }

.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: transparent; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 4px;
  font-weight: 700;
  font-size: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-weight: 700; font-size: 22px; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { text-decoration: none; }
.faq-item p { padding: 0 4px 18px; max-width: 40em; color: var(--muted); }

.closing { background: var(--ink); color: var(--paper); border-top: 0; }
.closing .container { display: flex; justify-content: space-between; align-items: center; gap: 28px; }
.closing h2 { color: var(--paper); }
.closing .muted { color: #cfcabe; }

.site-footer { background: #E7E2D8; border-top: 1px solid var(--line); padding: 56px 0 28px; }
.foot-brand { font-weight: 700; font-size: 20px; margin-bottom: 22px; text-decoration: none; display: inline-block; }
.foot-brand:hover { text-decoration: none; }
.foot-grid { display: grid; grid-template-columns: 1.15fr repeat(4, 1fr); gap: 24px; }
.foot-col h3 { font-size: 14px; margin-bottom: 10px; color: var(--muted); font-weight: 700; }
.foot-col a { display: block; padding: 4px 0; }
.copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

@media (max-width: 1079px) {
  .nav-search { width: 44px; padding: 0; justify-content: center; overflow: hidden; }
  .nav-search input, .nav-search kbd { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
  .nav-search.is-open, .nav-search:focus-within { width: 240px; padding: 0 10px 0 8px; overflow: visible; }
  .nav-search.is-open input, .nav-search:focus-within input,
  .nav-search.is-open kbd, .nav-search:focus-within kbd {
    position: static; width: auto; height: auto; opacity: 1; pointer-events: auto;
  }
  .hero-grid, .feature-grid, .compare, .scenes, .cases, .voice, .topics, .pricing, .foot-grid {
    grid-template-columns: 1fr;
  }
  .feature-side { grid-template-columns: 1fr 1fr; }
  .logo { font-size: 16px; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 8px 8px; font-size: 14px; }
}
@media (max-width: 719px) {
  .site-header { height: auto; min-height: var(--nav-h); }
  .header-bar { min-height: var(--nav-h); flex-wrap: wrap; padding: 10px 0; }
  .logo { white-space: normal; max-width: 9.2em; }
  .menu-btn { display: inline-flex; }
  .text-link { display: none; }
  .nav-links {
    display: none;
    position: fixed;
    z-index: 35;
    inset: var(--nav-h) 0 0 0;
    margin: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 20px 32px;
    gap: 6px;
    overflow: auto;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { font-size: 18px; padding: 14px 12px; }
  h1 { font-size: 36px; }
  .section, .hero { padding: 56px 0; }
  .hero { padding-top: 24px; }
  .flash { align-items: flex-start; }
  .flash-card { margin-left: 0; width: 100%; }
  .steps, .feature-side, .score { grid-template-columns: 1fr 1fr; }
  .step + .step { border-left: 0; padding-left: 0; }
  .step { border-top: 1px solid var(--line); }
  .reviews { columns: 1; }
  .closing .container { flex-direction: column; align-items: flex-start; }
  .news-item { grid-template-columns: 72px 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .score-num { font-size: 36px; }
  .compare h3 { font-size: 26px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 32px); }
  .header-tools .btn { padding: 0 12px; }
  .score, .steps, .feature-side, .lower ul, .foot-grid { grid-template-columns: 1fr; }
  .flash { flex-direction: column; align-items: stretch; }
  .flash .btn, .hero-actions .btn { width: 100%; }
  .quote { font-size: 18px; }
  .price { font-size: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category1 */
:root {
  --paper: #F3F0EA;
  --paper-2: #EFEBE4;
  --card: #FBF9F6;
  --ink: #161513;
  --muted: #5E5A54;
  --line: #E6E1D8;
  --lime: #C6F24E;
  --ochre: #C46A3A;
  --shadow: 0 8px 24px rgba(22,21,19,.06);
  --radius: 16px;
  --radius-btn: 999px;
  --radius-input: 12px;
  --max: 1120px;
  --nav-h: 72px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
/* roulang page: category1 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; object-fit: cover; }
button, input { font-family: inherit; color: inherit; appearance: none; -webkit-appearance: none; }
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button { appearance: none; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.muted { color: var(--muted); max-width: 38em; }
h1, h2, h3, p { margin: 0; }
h1 {
  font-weight: 680;
  font-size: 56px;
  line-height: 1.15;
  letter-spacing: 0;
}
h2 { font-size: 36px; line-height: 1.2; font-weight: 680; }
.num { letter-spacing: .08em; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  color: var(--ink);
}
.logo:hover { text-decoration: none; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  white-space: nowrap;
  text-decoration: none;
}
.nav-links a:hover { background: var(--line); text-decoration: none; }
.nav-links a.active { background: var(--ink); color: var(--lime); }
.header-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-search {
  width: 180px;
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-input);
  background: var(--card);
  transition: width 150ms ease, box-shadow 150ms ease;
  position: relative;
}
.nav-search:focus-within { width: 240px; box-shadow: 0 0 0 2px var(--lime); }
.nav-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-size: 16px;
  line-height: 1.4;
  padding: 0;
}
.nav-search input:focus { outline: none; }
.nav-search input::placeholder { color: var(--muted); }
.search-icon {
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: 0 0 auto;
}
kbd {
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.4;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 0 6px;
  color: var(--muted);
  background: var(--paper);
}
.text-link { font-size: 15px; white-space: nowrap; padding: 8px 4px; }
.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}
.menu-btn span { display: block; width: 16px; height: 1.5px; background: var(--ink); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--ink); color: var(--lime); }
.btn-primary:hover { background: #0c0b0a; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--line); }
.section { padding: 96px 0; border-top: 1px solid var(--line); }
.section.band { background: var(--paper-2); }
.page-head { border-top: 0; padding: 48px 0 80px; }
.head-grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 40px;
  align-items: end;
}
.lead { margin-top: 16px; font-size: 18px; max-width: 38em; color: var(--ink); }
.filter-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.sum-item { padding: 18px 16px 16px; border-bottom: 1px solid var(--line); }
.sum-item:nth-child(odd) { border-right: 1px solid var(--line); }
.sum-item:nth-last-child(-n+2) { border-bottom: 0; }
.sum-item b { display: block; font-size: 32px; line-height: 1.1; font-weight: 700; }
.sum-item span { color: var(--muted); font-size: 13px; }
.ochre { color: var(--ochre); }
.section-head { margin-bottom: 22px; }
.section-head p { margin-top: 8px; }
.chip-bar {
  display: grid;
  gap: 16px;
}
.chip-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.chip-label {
  min-width: 4.5em;
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
}
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: var(--radius-btn);
  min-height: 36px;
  padding: 0 14px;
  font-size: 14px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, transform 150ms ease;
}
.chip:hover { background: var(--line); }
.chip.active { background: var(--ink); color: var(--lime); border-color: var(--ink); }
.list-stack { display: grid; gap: 14px; }
.row-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 20px;
  align-items: center;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 150ms ease, box-shadow 150ms ease;
}
.row-card:hover { transform: translateY(-2px); }
.thumb {
  border-radius: 12px;
  overflow: hidden;
  background: #d7d1c7;
  border: 1px solid var(--line);
}
.thumb img { width: 100%; aspect-ratio: 16/9; }
.row-copy h3 { font-size: 22px; line-height: 1.3; font-weight: 700; }
.row-copy p { margin-top: 8px; color: var(--muted); max-width: 38em; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 4px 10px 4px 8px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 13px;
  font-weight: 700;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  display: inline-block;
}
.dot-live {
  background: var(--ochre);
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 72%, 100% { opacity: 1; }
  86% { opacity: .28; }
}
.term-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.term {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  box-shadow: var(--shadow);
}
.term strong { display: block; font-size: 16px; }
.term span { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; }
.note-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.note {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  min-height: 100%;
}
.note .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--lime);
  background: var(--ink);
  border-radius: var(--radius-btn);
  padding: 4px 10px;
}
.note p { max-width: 38em; }
.note .btn { margin-top: 18px; }
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background 150ms ease;
}
.news-item:hover { background: rgba(255,255,255,.45); text-decoration: none; }
.news-item time { color: var(--muted); font-size: 14px; }
.news-item span { font-weight: 700; }
.more-row, .slim-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.slim-cta {
  padding: 28px 32px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
}
.slim-cta h2 { font-size: 32px; }
.slim-cta p { color: #ddd8d0; margin-top: 8px; max-width: 36em; }
.site-footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 36px;
  background: var(--ink);
  color: var(--paper);
}
.foot-brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--paper);
  text-decoration: none;
}
.foot-brand:hover { text-decoration: none; }
.foot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 28px;
}
.foot-col h3 { margin: 0 0 12px; font-size: 14px; color: var(--lime); font-weight: 700; }
.foot-col a {
  display: block;
  padding: 6px 0;
  color: #ddd8d0;
  font-size: 15px;
  text-decoration: none;
}
.foot-col a:hover { text-decoration: underline; }
.copy { margin-top: 28px; color: #cfcabe; font-size: 14px; }
@media (max-width: 1079px) {
  .head-grid, .note-grid, .term-bar { grid-template-columns: 1fr 1fr; }
  .term-bar { grid-template-columns: 1fr 1fr; }
  .nav-search { width: 42px; padding: 0; justify-content: center; overflow: hidden; }
  .nav-search input, .nav-search kbd { display: none; }
  .nav-search.is-open, .nav-search:focus-within {
    width: 220px;
    padding: 0 10px 0 8px;
    justify-content: flex-start;
  }
  .nav-search.is-open input, .nav-search:focus-within input,
  .nav-search.is-open kbd, .nav-search:focus-within kbd { display: block; }
  .nav-links a { padding: 8px 8px; font-size: 14px; }
}
@media (max-width: 719px) {
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  .section { padding: 56px 0; }
  .page-head { padding: 32px 0 48px; }
  .site-header { height: auto; min-height: var(--nav-h); }
  .header-bar { min-height: var(--nav-h); padding: 10px 0; }
  .logo { white-space: normal; max-width: 8.6em; font-size: 16px; }
  .menu-btn { display: inline-flex; }
  .text-link { display: none; }
  .nav-links {
    display: none;
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 32px;
    margin: 0;
    gap: 8px;
    overflow: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 16px; font-size: 18px; }
  .head-grid, .note-grid, .term-bar, .row-card, .foot-grid { grid-template-columns: 1fr; }
  .more-row, .slim-cta { flex-direction: column; align-items: flex-start; }
  .slim-cta h2 { font-size: 28px; }
  .news-item { grid-template-columns: 72px 1fr; gap: 12px; }
}
@media (max-width: 520px) {
  .container { width: min(var(--max), calc(100% - 32px)); }
  .header-tools .btn { padding: 0 12px; }
  .sum-item b { font-size: 28px; }
  .foot-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .dot-live { animation: none; }
}

/* roulang page: category2 */
:root {
 --paper: #F3F0EA;
 --paper-2: #EFEBE4;
 --card: #FBF9F6;
 --ink: #161513;
 --muted: #5E5A54;
 --line: #E6E1D8;
 --lime: #C6F24E;
 --ochre: #C46A3A;
 --shadow: 0 8px 24px rgba(22,21,19,.06);
 --radius: 16px;
 --radius-btn: 999px;
 --radius-input: 12px;
 --max: 1120px;
 --nav-h: 72px;
 --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
/* roulang page: category2 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 background: var(--paper);
 color: var(--ink);
 font-size: 17px;
 line-height: 1.75;
}
img { max-width: 100%; display: block; object-fit: cover; }
button, input { font-family: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
p, h1, h2, h3 { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible {
 outline: 2px solid var(--lime);
 outline-offset: 2px;
}
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.muted { color: var(--muted); max-width: 38em; }
.num { letter-spacing: .08em; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 height: var(--nav-h);
 background: var(--paper);
 border-bottom: 1px solid var(--line);
}
.header-bar {
 height: 100%;
 display: flex;
 align-items: center;
 gap: 16px;
}
.logo {
 font-weight: 700;
 font-size: 18px;
 line-height: 1.2;
 white-space: nowrap;
 text-decoration: none;
 color: var(--ink);
}
.logo:hover { text-decoration: none; }
.nav-links {
 display: flex;
 align-items: center;
 gap: 6px;
 margin: 0 auto;
}
.nav-links a {
 padding: 8px 12px;
 border-radius: var(--radius-btn);
 font-size: 15px;
 white-space: nowrap;
 text-decoration: none;
}
.nav-links a:hover { background: var(--line); text-decoration: none; }
.nav-links a.active { background: var(--ink); color: var(--lime); }
.header-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-search {
 width: 180px;
 height: 42px;
 display: flex;
 align-items: center;
 gap: 8px;
 padding: 0 10px 0 12px;
 border: 1px solid var(--line);
 border-radius: var(--radius-input);
 background: var(--card);
 transition: width 150ms ease, box-shadow 150ms ease;
 position: relative;
}
.nav-search:focus-within { width: 240px; box-shadow: 0 0 0 2px var(--lime); }
.nav-search input {
 flex: 1;
 min-width: 0;
 border: 0;
 background: transparent;
 font-size: 16px;
 line-height: 1.4;
 padding: 0;
}
.nav-search input:focus { outline: none; }
.nav-search input::placeholder { color: var(--muted); }
.search-icon {
 width: 28px;
 height: 28px;
 border: 0;
 background: transparent;
 padding: 0;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 cursor: pointer;
 flex: 0 0 auto;
}
kbd {
 font-family: var(--font);
 font-size: 12px;
 border: 1px solid var(--line);
 border-bottom-width: 2px;
 border-radius: 6px;
 padding: 0 6px;
 line-height: 20px;
 color: var(--muted);
 background: var(--paper);
}
.text-link { font-size: 15px; white-space: nowrap; padding: 8px 4px; }
.menu-btn {
 display: none;
 width: 44px;
 height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: transparent;
 align-items: center;
 justify-content: center;
 flex-direction: column;
 gap: 6px;
 cursor: pointer;
}
.menu-btn span { display: block; width: 16px; height: 1.5px; background: var(--ink); }
.menu-btn[aria-expanded="true"] { background: var(--line); }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--radius-btn);
 border: 1px solid transparent;
 font-size: 15px;
 font-weight: 700;
 line-height: 1;
 cursor: pointer;
 text-decoration: none;
 transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--ink); color: var(--lime); }
.btn-primary:hover { background: #0c0b0a; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--line); }
.btn-lime { background: var(--lime); color: var(--ink); }
.btn-lime:hover { background: #d4f77a; }
.section { padding: 96px 0; border-top: 1px solid var(--line); }
.section.band { background: var(--paper-2); }
.section-head { margin-bottom: 28px; }
.section-head p { margin-top: 8px; color: var(--muted); max-width: 38em; }
h1, h2, h3 { font-weight: 700; letter-spacing: 0; }
h2 { font-size: 36px; line-height: 1.2; }
h3 { font-size: 22px; line-height: 1.35; }
.mag-head { padding: 72px 0 32px; }
.mag-kicker {
 display: flex;
 align-items: center;
 gap: 8px;
 font-size: 13px;
 color: var(--muted);
 margin-bottom: 18px;
}
.mag-kicker i {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: var(--lime);
 display: block;
 animation: blink 2.4s ease-in-out infinite;
}
.mag-title {
 font-size: 64px;
 font-weight: 700;
 line-height: 1.15;
 max-width: 10em;
}
.mag-lead {
 margin-top: 18px;
 padding-bottom: 28px;
 border-bottom: 1px solid var(--line);
 font-size: 18px;
 max-width: 38em;
}
.prose { max-width: 38em; }
.prose p + p { margin-top: 18px; }
.timeline { position: relative; }
.tl-item {
 position: relative;
 padding: 0 0 42px 36px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
 content: "";
 position: absolute;
 left: 4px;
 top: 16px;
 bottom: -8px;
 width: 1px;
 background: var(--line);
}
.tl-item:last-child::before { display: none; }
.dot {
 position: absolute;
 left: 0;
 top: 8px;
 width: 11px;
 height: 11px;
 border-radius: 50%;
 background: var(--lime);
 box-shadow: 0 0 0 4px var(--paper);
 animation: blink 2.4s ease-in-out infinite;
}
.band .dot { box-shadow: 0 0 0 4px var(--paper-2); }
.dot.updating { background: var(--ochre); }
.tl-meta {
 display: flex;
 align-items: center;
 gap: 10px;
 margin-bottom: 8px;
 color: var(--muted);
 font-size: 13px;
}
.tl-body { display: grid; grid-template-columns: 1fr .9fr; gap: 28px; align-items: center; }
.tl-copy p { margin-top: 8px; color: var(--muted); max-width: 36em; }
.screen {
 border: 1px solid var(--line);
 border-radius: var(--radius);
 overflow: hidden;
 background: #d7d1c7;
 box-shadow: var(--shadow);
 aspect-ratio: 16/9;
 display: flex;
 flex-direction: column;
 justify-content: flex-end;
}
.screen-shade {
 flex: 1;
 background:
  linear-gradient(180deg, rgba(22,21,19,.04), rgba(22,21,19,.18));
}
.sub-bar {
 min-height: 48px;
 background: var(--ink);
 color: var(--paper);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 padding: 0 14px;
 font-size: 14px;
}
.sub-bar em { font-style: normal; color: var(--lime); font-weight: 700; }
.sub-bar .state { color: var(--ochre); font-weight: 700; white-space: nowrap; }
.badge-row {
 display: flex;
 gap: 12px;
 overflow-x: auto;
 padding-bottom: 6px;
 scroll-snap-type: x mandatory;
}
.badge-row::-webkit-scrollbar { height: 0; }
.seal {
 flex: 0 0 auto;
 scroll-snap-align: start;
 min-width: 220px;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius-btn);
 box-shadow: var(--shadow);
 padding: 16px 22px;
}
.seal strong { display: block; font-size: 16px; }
.seal span { display: block; color: var(--muted); font-size: 14px; margin-top: 4px; }
.pull {
 margin: 0;
 padding: 32px 36px;
 background: var(--card);
 border: 1px solid var(--line);
 border-left: 4px solid var(--lime);
 border-radius: 0 var(--radius) var(--radius) 0;
 box-shadow: var(--shadow);
}
.pull p { font-size: 24px; line-height: 1.55; max-width: 22em; }
.pull a {
 display: inline-flex;
 margin-top: 18px;
 font-weight: 700;
 border-bottom: 1px solid var(--ink);
 text-decoration: none;
}
.pull a:hover { background: var(--lime); text-decoration: none; }
.review-grid {
 display: grid;
 grid-template-columns: 1.25fr .75fr;
 gap: 16px;
 align-items: start;
}
.review {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 padding: 28px;
 transition: transform 150ms ease, box-shadow 150ms ease;
}
.review:hover { transform: translateY(-2px); }
.review:first-child { padding-bottom: 56px; }
.review p { font-size: 18px; }
.review span { display: block; margin-top: 18px; color: var(--muted); font-size: 14px; }
.more-line {
 display: flex;
 align-items: flex-end;
 justify-content: space-between;
 gap: 24px;
}
.more-line p { margin-top: 8px; }
.return-wrap { padding-top: 0; border-top: 0; }
.return-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 24px;
 background: var(--ink);
 color: var(--paper);
 border-radius: var(--radius);
 padding: 28px 32px;
}
.return-bar h2 { font-size: 32px; }
.return-bar p { margin-top: 8px; color: #ddd8d0; }
.site-footer {
 background: var(--ink);
 color: var(--paper);
 padding: 64px 0 32px;
}
.site-footer a { color: var(--paper); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.foot-brand {
 font-weight: 700;
 font-size: 18px;
 display: inline-block;
 margin-bottom: 28px;
 color: var(--paper);
}
.foot-brand:hover { text-decoration: none; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 24px; }
.foot-col h3 { margin: 0 0 12px; font-size: 14px; color: var(--lime); font-weight: 700; }
.foot-col a { display: block; padding: 6px 0; color: #ddd8d0; font-size: 15px; }
.copy {
 margin-top: 36px;
 color: #b7b1a8;
 font-size: 14px;
 border-top: 1px solid rgba(243,240,234,.16);
 padding-top: 18px;
}
@keyframes blink {
 0%, 70%, 100% { opacity: 1; }
 85% { opacity: .35; }
}
@media (max-width: 1079px) {
 .nav-search { width: 42px; padding: 0; justify-content: center; overflow: hidden; }
 .nav-search input, .nav-search kbd { display: none; }
 .nav-search.is-open { width: 220px; padding: 0 10px 0 8px; overflow: visible; }
 .nav-search.is-open input, .nav-search.is-open kbd { display: block; }
 .nav-search.is-open input { display: block; }
 .text-link { display: none; }
 .tl-body, .review-grid { grid-template-columns: 1fr; }
 .mag-title { font-size: 52px; }
}
@media (max-width: 719px) {
 .site-header { height: auto; min-height: var(--nav-h); }
 .header-bar { min-height: var(--nav-h); flex-wrap: wrap; padding: 10px 0; }
 .logo { white-space: normal; max-width: 8.2em; }
 .menu-btn { display: inline-flex; }
 .nav-links {
 display: none;
 position: fixed;
 z-index: 30;
 inset: 72px 0 0 0;
 margin: 0;
 padding: 20px 24px 32px;
 background: var(--paper);
 flex-direction: column;
 align-items: stretch;
 gap: 6px;
 overflow: auto;
 }
 .nav-links.open { display: flex; }
 .nav-links a { padding: 14px 12px; font-size: 18px; }
 .mag-head { padding: 40px 0 8px; }
 .mag-title { font-size: 36px; }
 .section { padding: 56px 0; }
 h2 { font-size: 28px; }
 .return-bar, .more-line, .foot-grid { grid-template-columns: 1fr; display: flex; flex-direction: column; align-items: flex-start; }
 .return-bar { padding: 24px; }
 .pull { padding: 22px; }
 .pull p { font-size: 20px; }
 .tl-item { padding-left: 28px; }
}
@media (max-width: 520px) {
 .container { width: min(var(--max), calc(100% - 32px)); }
 .header-tools { gap: 6px; }
 .btn { padding: 0 12px; }
 .sub-bar { font-size: 13px; }
 .review:first-child { padding-bottom: 28px; }
}
@media (prefers-reduced-motion: reduce) {
 .dot, .mag-kicker i { animation: none; }
 .btn, .review, .nav-search { transition: none; }
}