/* roulang page: index */
:root {
  --bg: #140E12;
  --bg-elev: #1E151A;
  --bg-soft: #2A1E24;
  --ink: #F6F1EA;
  --muted: #C9B8B0;
  --line: rgba(243,199,176,.22);
  --accent: #FF6A3D;
  --accent-2: #E7C4A8;
  --signal: #D6E27A;
  --dark: #1A0D0A;
  --shadow: 0 8px 24px rgba(90, 32, 16, .28);
  --radius: 8px;
  --bs-body-bg: #140E12;
  --bs-body-color: #F6F1EA;
  --bs-link-color: #E7C4A8;
  --bs-link-hover-color: #F6F1EA;
  --bs-border-color: rgba(243,199,176,.22);
  --bs-accordion-color: #F6F1EA;
  --bs-accordion-bg: transparent;
  --bs-accordion-border-color: rgba(243,199,176,.22);
  --bs-accordion-btn-color: #F6F1EA;
  --bs-accordion-btn-bg: transparent;
  --bs-accordion-active-color: #E7C4A8;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #D6E27A;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { font-weight: 700; line-height: 1.2; color: var(--ink); overflow-wrap: anywhere; }
h1 { font-size: 52px; margin: 0 0 14px; }
h2 { font-size: 34px; margin: 0 0 16px; }
h3 { font-size: 20px; margin: 0 0 8px; line-height: 1.4; }
body a { color: var(--accent-2); text-decoration: none; }
body a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}
::selection { background: var(--accent); color: var(--dark); }
.container { max-width: 1180px !important; }
.num { font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace; font-variant-numeric: tabular-nums; }
.kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--accent-2);
}
.lede { max-width: 760px; color: var(--muted); margin: 0 0 28px; }
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  display: inline-block;
  flex: 0 0 6px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent-2);
  background: transparent;
}
.tag-hot { color: var(--accent); border-color: rgba(255,106,61,.45); }
.block { padding: 88px 0; }
.block-a { background: var(--bg); }
.block-b { background: var(--bg-elev); }
.block-c { background: var(--bg-soft); }
section[id] { scroll-margin-top: 84px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.navbar { min-height: 72px; padding: 0; background: transparent; }
.nav-inner { min-height: 72px; display: flex; align-items: center; gap: 16px; }
.logo { display: flex; flex-direction: column; justify-content: center; line-height: 1.15; color: var(--ink); min-height: 44px; }
.logo-main { font-size: 18px; font-weight: 700; color: var(--ink); }
.logo-sub { margin-top: 3px; font-size: 12px; letter-spacing: .12em; color: var(--accent-2); white-space: nowrap; }
.logo:hover .logo-main { color: var(--ink); }
.navbar-toggler {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.navbar-toggler:focus { box-shadow: none; }
.tgl, .tgl::before, .tgl::after {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--ink);
  position: relative;
}
.tgl::before, .tgl::after { content: ""; position: absolute; left: 0; }
.tgl::before { top: -6px; }
.tgl::after { top: 6px; }
.nav-center { gap: 10px; }
.nav-home, .nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  color: var(--accent-2);
}
.nav-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  background: transparent;
}
.nav-pill:hover, .nav-home:hover { color: var(--ink); border-color: var(--accent-2); }
.nav-home.is-active { background: var(--bg-soft); color: var(--ink); border-radius: var(--radius); }
.btn-nav, .btn-main, .btn-line, .go-solid, .go-line, .more-link {
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--dark);
  font-weight: 700;
  white-space: nowrap;
}
body a.btn-nav, body a.btn-nav:hover, body a.btn-main, body a.btn-main:hover { color: var(--dark); }
.btn-nav:hover, .btn-main:hover { background: var(--accent-2); border-color: var(--accent-2); transform: translateY(-2px); }
@media (min-width: 992px) {
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
    align-items: center;
    flex: 1;
  }
  .nav-center {
    display: flex;
    align-items: center;
    margin: 0 auto;
  }
  .navbar-toggler { display: none; }
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--bg);
    padding-bottom: 16px;
  }
  .nav-center { display: flex; flex-direction: column; align-items: stretch; padding-top: 8px; }
  .nav-home, .nav-pill { width: 100%; }
  .btn-nav { width: 100%; margin-top: 10px; }
}

.hero { padding: 72px 0 88px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(260px, 5fr);
  gap: 36px;
  align-items: stretch;
}
.value { margin: 0 0 14px; font-size: 20px; line-height: 1.6; color: var(--ink); }
.intro { color: var(--muted); margin: 0; max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn-main, .btn-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-weight: 700;
}
.btn-main {
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--dark);
  box-shadow: var(--shadow);
}
.btn-line {
  border-radius: var(--radius);
  border: 1px solid var(--accent-2);
  background: transparent;
  color: var(--accent-2);
}
body a.btn-line { color: var(--accent-2); }
body a.btn-line:hover { color: var(--dark); background: var(--accent-2); transform: translateY(-2px); }
.hero-rail {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px 16px;
  box-shadow: var(--shadow);
}
.rail-head, .rail-label, .meter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.rail-head { color: var(--ink); font-size: 14px; margin-bottom: 8px; }
.rail-head span { display: inline-flex; align-items: center; gap: 8px; }
.rail-label { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.meter { height: 6px; background: var(--bg); border-radius: 999px; overflow: hidden; margin-bottom: 8px; }
.meter span { display: block; height: 100%; background: var(--accent); }
.rail-note { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.rail-geo { width: 100%; height: 72px; object-fit: cover; border-radius: var(--radius); margin-bottom: 12px; }
.rail-list { display: flex; flex-direction: column; gap: 10px; }
.rail-list li {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
.rail-list p { margin: 8px 0 0; color: var(--muted); font-size: 15px; line-height: 1.7; }

.pain-grid, .voice-grid, .catalog-grid, .channel-grid {
  display: grid;
  gap: 22px;
}
.pain-grid { grid-template-columns: 1fr 1fr; }
.pain-col h3 { margin-bottom: 16px; }
.hbar { margin-bottom: 18px; }
.hbar-top { display: flex; justify-content: space-between; gap: 12px; color: var(--ink); }
.hbar-track { height: 8px; background: var(--bg); border-radius: 999px; margin: 8px 0; overflow: hidden; }
.hbar-track span { display: block; height: 100%; background: var(--accent); }
.pain-col.right .hbar-track span { background: var(--accent-2); }
.hbar p { margin: 0; color: var(--muted); font-size: 15px; }

.flow {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
}
.flow-item { flex: 1; padding: 22px 18px; border-right: 1px solid var(--line); }
.flow-item:last-child { border-right: 0; }
.flow-item:nth-child(1) { flex: 1.25; }
.flow-item:nth-child(2) { flex: 1; }
.flow-item:nth-child(3) { flex: .9; }
.flow-item:nth-child(4) { flex: 1.1; }
.flow-item em { display: block; font-style: normal; color: var(--accent); font-size: 13px; letter-spacing: .14em; }
.flow-item strong { display: block; margin: 8px 0; font-size: 20px; }
.flow-item p { margin: 0; color: var(--muted); font-size: 15px; }

.method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 28px;
}
.method-grid .step:nth-child(2),
.method-grid .step:nth-child(4) { margin-top: 36px; }
.step {
  border-left: 1px solid var(--line);
  padding: 6px 0 6px 18px;
}
.step-no { display: block; color: var(--accent); font-size: 28px; line-height: 1; margin-bottom: 8px; }
.step p { margin: 0; color: var(--muted); }

.scene-bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.scene {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 168px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  overflow: hidden;
}
body a.scene { color: var(--ink); }
.scene:hover { transform: translateY(-2px); border-color: var(--accent-2); box-shadow: var(--shadow); color: var(--ink); }
.scene::before {
  content: "";
  position: absolute;
  top: 20px;
  right: 18px;
  width: 22px;
  height: 1px;
  background: rgba(243,199,176,.5);
}
.scene::after {
  content: "";
  position: absolute;
  top: 17px;
  right: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}
.scene span { font-size: 12px; letter-spacing: .16em; color: var(--accent-2); }
.scene strong { display: block; margin: 8px 0 4px; font-size: 26px; }
.scene em { font-style: normal; color: var(--muted); }
.s1 { grid-column: span 7; min-height: 210px; }
.s2 { grid-column: span 5; }
.s3 { grid-column: span 4; min-height: 150px; }
.s4 { grid-column: span 3; min-height: 150px; }
.s5 { grid-column: span 5; min-height: 150px; }
.s6 { grid-column: span 12; min-height: 128px; }

.layer-board {
  display: grid;
  grid-template-columns: 1.35fr 1fr .82fr;
  gap: 16px;
  align-items: start;
}
.layer {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  padding: 18px;
}
.layer-hot { min-height: 470px; background: var(--bg-soft); }
.layer-mid { min-height: 360px; }
.layer-new { min-height: 250px; }
.layer-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.layer-item {
  display: block;
  padding: 12px 0 12px 12px;
  border-top: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  color: var(--ink);
}
body a.layer-item { color: var(--ink); }
.layer-item:hover { border-left-color: var(--accent-2); color: var(--ink); transform: translateY(-2px); }
.layer-item p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }

.result-row { --bs-gutter-y: 18px; }
.stat {
  height: 100%;
  padding: 8px 8px 8px 0;
  border-top: 1px solid var(--line);
}
.stat strong { display: block; font-size: 56px; line-height: 1; font-weight: 700; color: var(--ink); margin: 10px 0; }
.stat span { color: var(--muted); }
.stat-note { margin: 18px 0 0; color: var(--muted); }

.voice-grid { grid-template-columns: 1.25fr .85fr; }
.quote {
  margin: 0;
  padding: 8px 0 8px 18px;
  border-left: 1px solid var(--accent-2);
}
.quote p { margin: 0 0 14px; color: var(--ink); }
.quote footer { color: var(--muted); font-size: 14px; }
.quote-short {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.quote-short b { color: var(--ink); font-weight: 700; margin-right: 8px; }

.reader {
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.reader h3 { margin: 0; }
.fit, .unfit { margin: 0; color: var(--muted); }
.fit b, .unfit b { display: block; color: var(--accent-2); font-size: 12px; letter-spacing: .14em; font-weight: 500; }

.catalog-grid { grid-template-columns: minmax(0, 8fr) minmax(240px, 4fr); align-items: start; }
.entry, .side-card {
  display: block;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg);
  padding: 16px 16px 16px 18px;
  color: var(--ink);
}
body a.entry, body a.side-card { color: var(--ink); }
.entry:hover, .side-card:hover { transform: translateY(-2px); border-color: var(--accent-2); box-shadow: var(--shadow); color: var(--ink); }
.entry-lg .geo { width: 100%; height: 190px; object-fit: cover; border-radius: var(--radius); margin: 12px 0; }
.entry p, .side-card p { margin: 8px 0; color: var(--muted); }
.entry-meta { color: var(--accent-2); font-size: 13px; letter-spacing: .06em; }
.side-stack { display: flex; flex-direction: column; gap: 12px; }
.more-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--accent-2);
  font-weight: 700;
}
body a.more-link { color: var(--accent-2); }
.more-link:hover { color: var(--ink); border-color: var(--accent-2); transform: translateY(-2px); }

.news-list { max-width: 820px; }
.news-item {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.news-date { color: var(--accent); font-size: 14px; }
.news-item a { font-weight: 700; }
.news-item p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }

.metric-band { padding: 48px 0; }
.metric-row {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 12px 18px;
  align-items: end;
}
.metric strong { display: block; font-size: 40px; line-height: 1; margin: 6px 0; }
.metric span { color: var(--muted); font-size: 14px; }
.metric.lead-metric strong { color: var(--accent); }

.spec {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0;
}
.spec div { padding: 22px 24px; background: var(--bg); border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.spec div:nth-child(2n) { border-right: 0; }
.spec div:nth-last-child(-n+2) { border-bottom: 0; }
.spec dt { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.spec dd { margin: 0; color: var(--muted); }

.accordion { --bs-accordion-border-width: 0; }
.accordion-item { background: transparent; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.accordion-button {
  background: transparent !important;
  color: var(--ink);
  box-shadow: none !important;
  padding: 18px 4px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 0 !important;
}
.accordion-button:not(.collapsed) { color: var(--accent-2); }
.accordion-button::after {
  width: 8px;
  height: 8px;
  background-image: none;
  border-right: 1.5px solid var(--accent-2);
  border-bottom: 1.5px solid var(--accent-2);
  transform: rotate(45deg);
}
.accordion-button:not(.collapsed)::after { transform: rotate(225deg); }
.accordion-body { padding: 0 4px 18px; color: var(--muted); }

.channel-grid { grid-template-columns: 1fr 1fr; }
.channel-a, .channel-b {
  min-height: 250px;
  padding: 28px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}
.channel-a { background: var(--accent); }
.channel-a h3, .channel-a .kicker, .channel-a p { color: var(--dark); }
.channel-a p { color: rgba(26,13,10,.82); }
.channel-b { background: var(--bg-elev); border: 1px solid var(--line); }
.channel-b p { color: var(--muted); }
.go-solid, .go-line {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--radius);
  font-weight: 700;
}
.go-solid { background: var(--dark); color: var(--accent-2); }
body a.go-solid, body a.go-solid:hover { color: var(--accent-2); }
.go-solid:hover { background: var(--bg); transform: translateY(-2px); }
.go-line { border: 1px solid var(--accent-2); color: var(--accent-2); background: transparent; }
body a.go-line:hover { color: var(--dark); background: var(--accent-2); transform: translateY(-2px); }

.close-band {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
}
.close-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.site-footer { background: var(--bg); border-top: 1px solid var(--line); padding: 42px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 24px; }
.foot-brand p { color: var(--muted); margin: 12px 0 0; max-width: 360px; }
.foot-links { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.copy { margin: 0; color: var(--muted); }

@media (max-width: 1199.98px) {
  h1 { font-size: 48px; }
}
@media (max-width: 1024px) {
  .hero-grid { gap: 22px; }
  .s1, .s2, .s5 { grid-column: span 6; }
  .s3, .s4 { grid-column: span 6; }
  .s6 { grid-column: span 12; }
  .stat strong { font-size: 44px; }
}
@media (max-width: 991.98px) {
  .layer-board, .voice-grid, .catalog-grid, .metric-row { grid-template-columns: 1fr 1fr; }
  .layer-hot, .layer-mid, .layer-new { min-height: 0; }
  .metric.lead-metric { grid-column: 1 / -1; }
  .reader { grid-template-columns: 1fr 1fr; }
  .reader h3 { grid-column: 1 / -1; }
}
@media (max-width: 767.98px) {
  .block { padding: 48px 0; }
  .hero { padding: 40px 0 48px; }
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  .hero-grid, .pain-grid, .method-grid, .layer-board, .voice-grid, .catalog-grid, .channel-grid, .spec, .foot-grid, .metric-row, .flow {
    grid-template-columns: 1fr;
    display: grid;
  }
  .flow { display: grid; }
  .flow-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-item:last-child { border-bottom: 0; }
  .method-grid .step:nth-child(2),
  .method-grid .step:nth-child(4) { margin-top: 0; }
  .s1, .s2, .s3, .s4, .s5, .s6 { grid-column: span 12; }
  .scene strong { font-size: 22px; }
  .news-item, .reader, .close-band { grid-template-columns: 1fr; display: grid; }
  .close-band { align-items: stretch; }
  .spec div, .spec div:nth-child(2n), .spec div:nth-last-child(-n+2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .spec div:last-child { border-bottom: 0; }
  .hero-rail { clip-path: none; }
}
@media (max-width: 520px) {
  h1 { font-size: 32px; }
  .hero-actions, .close-actions { flex-direction: column; }
  .hero-actions a, .close-actions a, .go-solid, .go-line { width: 100%; }
  .stat strong { font-size: 40px; }
  .logo-sub { letter-spacing: .06em; }
}
@media (min-width: 1025px) {
  .hero-rail { clip-path: polygon(16px 0, 100% 0, 100% 100%, 0 100%); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .btn-nav:hover, .btn-main:hover, .btn-line:hover, .entry:hover, .scene:hover, .side-card:hover, .more-link:hover, .go-solid:hover, .go-line:hover, .layer-item:hover {
    transform: none;
  }
}

/* roulang page: category2 */
:root {
 --bg: #140E12;
 --bg-elev: #1E151A;
 --bg-soft: #2A1E24;
 --ink: #F6F1EA;
 --muted: #C9B8B0;
 --line: rgba(243,199,176,.22);
 --accent: #FF6A3D;
 --accent-2: #E7C4A8;
 --signal: #D6E27A;
 --dark: #1A0D0A;
 --shadow: 0 8px 24px rgba(90, 32, 16, .28);
 --radius: 8px;
 --bs-body-bg: #140E12;
 --bs-body-color: #F6F1EA;
 --bs-link-color: #E7C4A8;
 --bs-link-hover-color: #F6F1EA;
 --bs-border-color: rgba(243,199,176,.22);
 --bs-accordion-color: #F6F1EA;
 --bs-accordion-bg: transparent;
 --bs-accordion-border-color: rgba(243,199,176,.22);
 --bs-accordion-btn-color: #F6F1EA;
 --bs-accordion-btn-bg: transparent;
 --bs-accordion-active-color: #E7C4A8;
 --bs-accordion-active-bg: transparent;
 --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #D6E27A;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
 margin: 0;
 background: var(--bg);
 color: var(--ink);
 font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
 font-size: 17px;
 line-height: 1.8;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
body a { color: var(--accent-2); text-decoration: none; }
body a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
 outline: 2px solid var(--signal);
 outline-offset: 3px;
}
.container { max-width: 1180px !important; }
h1, h2, h3, p { text-align: left; }
h1 {
 margin: 14px 0 18px;
 font-size: 52px;
 font-weight: 700;
 line-height: 1.2;
 color: var(--ink);
 letter-spacing: 0;
}
h2 {
 margin: 0 0 18px;
 font-size: 34px;
 font-weight: 700;
 line-height: 1.25;
 color: var(--ink);
}
h3 {
 margin: 0 0 8px;
 font-size: 20px;
 font-weight: 700;
 line-height: 1.4;
 color: var(--ink);
}
p { margin: 0 0 14px; color: var(--muted); }
.tag {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 min-height: 26px;
 padding: 0 8px;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 font-size: 12px;
 letter-spacing: .12em;
 color: var(--accent-2);
 background: transparent;
}
.tag-hot { color: var(--accent); border-color: rgba(255,106,61,.45); }
.tag-new { color: var(--signal); border-color: rgba(214,226,122,.45); }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: var(--bg);
 border-bottom: 1px solid var(--line);
}
.navbar { min-height: 72px; padding: 0; background: transparent; }
.nav-inner { min-height: 72px; display: flex; align-items: center; gap: 16px; }
.logo { display: flex; flex-direction: column; justify-content: center; line-height: 1.15; color: var(--ink); min-height: 44px; }
.logo-main { font-size: 18px; font-weight: 700; color: var(--ink); }
.logo-sub { margin-top: 3px; font-size: 12px; letter-spacing: .12em; color: var(--accent-2); white-space: nowrap; }
.logo:hover .logo-main { color: var(--ink); }
.navbar-toggler {
 margin-left: auto;
 width: 44px;
 height: 44px;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 background: var(--bg-elev);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 padding: 0;
}
.navbar-toggler:focus { box-shadow: none; }
.tgl, .tgl::before, .tgl::after {
 display: block;
 width: 18px;
 height: 2px;
 background: var(--ink);
 position: relative;
}
.tgl::before, .tgl::after { content: ""; position: absolute; left: 0; }
.tgl::before { top: -6px; }
.tgl::after { top: 6px; }
.nav-center { list-style: none; padding: 0; margin: 0; gap: 10px; }
.nav-home, .nav-pill {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 36px;
 padding: 0 14px;
 color: var(--accent-2);
}
.nav-pill {
 border: 1px solid var(--line);
 border-radius: 999px;
 font-size: 14px;
 background: transparent;
}
.nav-pill:hover, .nav-home:hover { color: var(--ink); border-color: var(--accent-2); }
.nav-home.is-active, .nav-pill.is-active {
 background: var(--bg-soft);
 color: var(--ink);
 border-color: var(--line);
}
.btn-nav, .btn-main, .btn-line, .more-link {
 transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-nav {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 46px;
 padding: 0 26px;
 border-radius: 999px;
 border: 1px solid var(--accent);
 background: var(--accent);
 color: var(--dark);
 font-weight: 700;
 white-space: nowrap;
}
body a.btn-nav, body a.btn-nav:hover, body a.btn-main, body a.btn-main:hover { color: var(--dark); }
.btn-nav:hover, .btn-main:hover { background: var(--accent-2); border-color: var(--accent-2); transform: translateY(-2px); }
.btn-main, .btn-line {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 48px;
 padding: 0 22px;
 font-weight: 700;
}
.btn-main {
 border-radius: 999px;
 border: 1px solid var(--accent);
 background: var(--accent);
 color: var(--dark);
 box-shadow: var(--shadow);
}
.btn-line {
 border-radius: var(--radius);
 border: 1px solid var(--accent-2);
 background: transparent;
 color: var(--accent-2);
}
body a.btn-line { color: var(--accent-2); }
body a.btn-line:hover { color: var(--dark); background: var(--accent-2); transform: translateY(-2px); }
.band { padding: 88px 0; background: var(--bg); }
.band-alt { background: var(--bg-elev); }
.scene-head { padding: 42px 0 56px; background: var(--bg); border-bottom: 1px solid var(--line); }
.head-grid {
 display: grid;
 grid-template-columns: minmax(0, 7fr) minmax(240px, 5fr);
 gap: 48px;
 align-items: start;
}
.head-copy { padding-top: 28px; max-width: 640px; }
.head-copy .lead { color: var(--ink); font-size: 18px; margin-bottom: 0; }
.head-stats {
 background: var(--bg-elev);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 padding: 8px 18px;
 box-shadow: var(--shadow);
}
.stat-item {
 display: flex;
 align-items: baseline;
 justify-content: space-between;
 gap: 12px;
 padding: 14px 0;
 border-top: 1px solid var(--line);
}
.stat-item:first-child { border-top: 0; }
.stat-item span { color: var(--muted); font-size: 14px; }
.num {
 font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
 font-size: 32px;
 font-weight: 700;
 color: var(--ink);
 letter-spacing: 0;
 line-height: 1;
}
.dot {
 width: 6px;
 height: 6px;
 border-radius: 50%;
 background: var(--signal);
 display: inline-block;
 margin-right: 6px;
 vertical-align: middle;
}
.section-kicker { margin-bottom: 10px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.stack-row {
 position: relative;
 background: var(--bg);
 border: 1px solid var(--line);
 border-left: 3px solid var(--accent);
 border-radius: var(--radius);
 padding: 18px 18px 14px;
 transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.row-lg { min-height: 148px; }
.row-md { min-height: 116px; }
.row-sm { min-height: 92px; }
.stack-row:hover {
 transform: translateY(-2px);
 border-color: var(--accent-2);
 box-shadow: var(--shadow);
}
.row-top, .entry-line {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
}
.entry-line {
 margin-top: 8px;
 padding-top: 8px;
 border-top: 1px solid var(--line);
 color: var(--ink);
}
.entry-line small { color: var(--muted); font-size: 14px; }
.corner {
 position: absolute;
 top: 12px;
 right: 12px;
 width: 6px;
 height: 6px;
 background: var(--signal);
}
.more-wrap { margin-top: 18px; }
.more-link {
 display: inline-flex;
 align-items: center;
 min-height: 40px;
 font-weight: 700;
 border-bottom: 1px solid var(--line);
}
.more-link:hover { border-color: var(--ink); }
.compare {
 display: grid;
 grid-template-columns: 1.45fr .95fr .75fr;
 gap: 14px;
 align-items: stretch;
}
.compare-col {
 background: var(--bg-soft);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 padding: 22px 18px 10px;
}
.col-mid { background: var(--bg-elev); }
.col-narrow { background: #24181d; }
.spec { margin: 14px 0 0; }
.spec div {
 display: grid;
 grid-template-columns: 72px 1fr;
 gap: 8px;
 padding: 10px 0;
 border-top: 1px solid var(--line);
}
.spec dt { color: var(--accent-2); font-size: 14px; font-weight: 500; }
.spec dd { margin: 0; color: var(--ink); }
.memo { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.memo-item {
 display: grid;
 grid-template-columns: 72px 1fr;
 gap: 18px;
 padding: 22px 0;
 border-top: 1px solid var(--line);
}
.memo-item:last-child { border-bottom: 1px solid var(--line); }
.memo-no {
 font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
 font-size: 28px;
 line-height: 1;
 color: var(--accent);
 padding-top: 4px;
}
.memo-item p { margin: 0; max-width: 46em; }
.voice {
 border-top: 1px solid var(--line);
 border-bottom: 1px solid var(--line);
 padding: 28px 0 8px 18px;
 border-left: 3px solid var(--accent-2);
}
.voice q { quotes: none; display: block; color: var(--ink); font-size: 22px; line-height: 1.6; margin-bottom: 12px; }
.voice cite { display: block; color: var(--muted); font-style: normal; font-size: 14px; }
.article-list { display: flex; flex-direction: column; }
.article-row {
 display: grid;
 grid-template-columns: 132px 1fr;
 gap: 18px;
 align-items: center;
 padding: 16px 0;
 border-top: 1px solid var(--line);
 color: var(--ink);
 transition: transform .2s ease, border-color .2s ease;
}
.article-row:last-child { border-bottom: 1px solid var(--line); }
.article-row:hover { transform: translateY(-2px); color: var(--ink); }
.ph {
 width: 132px;
 height: 84px;
 object-fit: cover;
 border-radius: var(--radius);
 border: 1px solid var(--line);
 background: var(--bg-soft);
}
.article-row time { display: block; color: var(--accent-2); font-size: 13px; letter-spacing: .08em; }
.article-row p { margin: 4px 0 0; font-size: 15px; }
.accordion-item { background: transparent; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.accordion-button {
 background: transparent;
 color: var(--ink);
 box-shadow: none;
 padding: 18px 0;
 font-size: 18px;
 font-weight: 700;
 line-height: 1.5;
}
.accordion-button:not(.collapsed) {
 color: var(--accent-2);
 background: transparent;
 box-shadow: none;
}
.accordion-button:focus { box-shadow: 0 0 0 2px var(--signal); }
.accordion-button::after { filter: grayscale(1) brightness(2.4); }
.accordion-body { padding: 0 0 18px; color: var(--muted); max-width: 48em; }
.end-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site-footer { border-top: 1px solid var(--line); background: var(--bg); padding: 36px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .9fr 1fr; gap: 22px; align-items: start; }
.foot-brand p { color: var(--muted); margin-top: 12px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.copy { color: var(--muted); margin: 0; font-size: 14px; }
@media (min-width: 992px) {
 .navbar-collapse { display: flex !important; align-items: center; flex: 1; background: transparent; padding: 0; }
 .nav-center { display: flex; flex-direction: row; align-items: center; margin: 0 auto; }
 .nav-home, .nav-pill { width: auto; }
 .btn-nav { width: auto; margin: 0 0 0 8px; }
 .navbar-toggler { display: none; }
}
@media (max-width: 1024px) {
 h1 { font-size: 44px; }
 .head-grid { gap: 28px; }
 .compare { grid-template-columns: 1fr 1fr; }
 .col-narrow { grid-column: 1 / -1; }
}
@media (max-width: 991.98px) {
 .navbar-collapse { background: var(--bg); padding-bottom: 16px; }
 .nav-center { display: flex; flex-direction: column; align-items: stretch; padding-top: 8px; }
 .nav-home, .nav-pill { width: 100%; }
 .btn-nav { width: 100%; margin-top: 10px; }
}
@media (max-width: 768px) {
 .band { padding: 52px 0; }
 .scene-head { padding: 32px 0 40px; }
 h1 { font-size: 36px; }
 h2 { font-size: 28px; }
 .head-grid, .compare, .foot-grid, .article-row, .memo-item { grid-template-columns: 1fr; }
 .head-copy { padding-top: 8px; }
 .ph { width: 100%; height: 120px; }
 .voice q { font-size: 18px; }
}
@media (max-width: 520px) {
 h1 { font-size: 32px; }
 .logo-main { font-size: 16px; }
 .logo-sub { letter-spacing: .04em; font-size: 11px; }
 .num { font-size: 26px; }
 .btn-main, .btn-line, .more-link { width: 100%; }
 .row-top, .entry-line { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after {
  animation: none !important;
  transition: none !important;
 }
}

/* roulang page: category1 */
:root {
  --bg: #140E12;
  --bg-elev: #1E151A;
  --bg-soft: #2A1E24;
  --ink: #F6F1EA;
  --muted: #C9B8B0;
  --line: rgba(243,199,176,.22);
  --accent: #FF6A3D;
  --accent-2: #E7C4A8;
  --signal: #D6E27A;
  --dark: #1A0D0A;
  --shadow: 0 8px 24px rgba(90, 32, 16, .28);
  --radius: 8px;
  --bs-body-bg: #140E12;
  --bs-body-color: #F6F1EA;
  --bs-link-color: #E7C4A8;
  --bs-link-hover-color: #F6F1EA;
  --bs-border-color: rgba(243,199,176,.22);
  --bs-accordion-color: #F6F1EA;
  --bs-accordion-bg: transparent;
  --bs-accordion-border-color: rgba(243,199,176,.22);
  --bs-accordion-btn-color: #F6F1EA;
  --bs-accordion-btn-bg: transparent;
  --bs-accordion-active-color: #E7C4A8;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #D6E27A;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3 { font-weight: 700; line-height: 1.2; color: var(--ink); }
p { margin: 0 0 14px; }
body a { color: var(--accent-2); text-decoration: none; }
body a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}
.container { max-width: 1180px !important; }
.num {
  font-family: ui-monospace, "Sarasa Mono SC", "Noto Sans Mono", "Source Han Mono", monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent-2);
  background: transparent;
}
.tag-hot { color: var(--accent); border-color: rgba(255,106,61,.45); }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent-2);
  background: transparent;
}
.badge-hot { color: var(--accent); border-color: rgba(255,106,61,.5); }
.badge-steady { color: var(--accent-2); }
.badge-new { color: var(--dark); background: var(--signal); border-color: var(--signal); }
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  flex: 0 0 6px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.navbar { min-height: 72px; padding: 0; background: transparent; }
.nav-inner { min-height: 72px; display: flex; align-items: center; gap: 16px; }
.logo { display: flex; flex-direction: column; justify-content: center; line-height: 1.15; color: var(--ink); min-height: 44px; }
.logo-main { font-size: 18px; font-weight: 700; color: var(--ink); }
.logo-sub { margin-top: 3px; font-size: 12px; letter-spacing: .12em; color: var(--accent-2); white-space: nowrap; }
.logo:hover .logo-main { color: var(--ink); }
.navbar-toggler {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.navbar-toggler:focus { box-shadow: none; }
.tgl, .tgl::before, .tgl::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
  content: "";
}
.tgl::before { position: absolute; top: -6px; }
.tgl::after { position: absolute; top: 6px; }
.nav-center { gap: 10px; list-style: none; }
.nav-home, .nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  color: var(--accent-2);
}
.nav-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  background: transparent;
}
.nav-pill:hover, .nav-home:hover { color: var(--ink); border-color: var(--accent-2); }
.nav-home.is-active, .nav-pill.is-active {
  background: var(--bg-soft);
  color: var(--ink);
  border-color: var(--line);
}
.nav-home.is-active { border-radius: var(--radius); }
.btn-nav, .btn-main, .btn-line, .more-link {
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--dark);
  font-weight: 700;
  white-space: nowrap;
}
body a.btn-nav, body a.btn-nav:hover, body a.btn-main, body a.btn-main:hover { color: var(--dark); }
.btn-nav:hover, .btn-main:hover { background: var(--accent-2); border-color: var(--accent-2); transform: translateY(-2px); }
.btn-main, .btn-line, .more-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-weight: 700;
}
.btn-main {
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--dark);
  box-shadow: var(--shadow);
}
.btn-line, .more-link {
  border-radius: var(--radius);
  border: 1px solid var(--accent-2);
  background: transparent;
  color: var(--accent-2);
}
body a.btn-line, body a.more-link { color: var(--accent-2); }
body a.btn-line:hover, body a.more-link:hover {
  color: var(--dark);
  background: var(--accent-2);
  transform: translateY(-2px);
}
.sec { padding: 84px 0; }
.block-a { background: var(--bg); }
.block-b { background: var(--bg-elev); }
section[id] { scroll-margin-top: 84px; }
.band { padding: 36px 0 44px; border-bottom: 1px solid var(--line); }
.band-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(240px, 5fr);
  gap: 28px;
  align-items: stretch;
}
.band h1 { font-size: 48px; margin: 12px 0 14px; max-width: 12em; }
.lead { color: var(--muted); max-width: 38em; font-size: 17px; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 6px 0 0; }
.checks li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  color: var(--ink);
  font-size: 14px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.summary {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.summary-top, .count-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.summary .big {
  font-size: 56px;
  line-height: 1;
  font-weight: 700;
  color: var(--ink);
}
.summary .unit { color: var(--muted); font-size: 14px; }
.split { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.split div {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}
.split span { display: block; color: var(--muted); font-size: 12px; letter-spacing: .08em; }
.split strong { font-weight: 700; font-size: 22px; }
.note { color: var(--muted); font-size: 14px; margin: 0; }
.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 22px;
}
.sec-head h2 { font-size: 32px; margin: 8px 0 0; }
.sec-head p { max-width: 36em; color: var(--muted); margin: 0; }
.shelf {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.entry {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.block-b .entry { background: var(--bg-elev); }
.entry:hover { transform: translateY(-2px); border-color: var(--accent-2); box-shadow: var(--shadow); }
.entry a { display: block; color: inherit; height: 100%; }
.entry a:hover { color: inherit; }
.entry-wide { grid-column: 1 / -1; }
.entry-wide a {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 168px;
}
.ph {
  background: var(--bg-soft);
  min-height: 120px;
  position: relative;
}
.ph::before, .ph::after {
  content: "";
  position: absolute;
  background: rgba(231,196,168,.28);
}
.ph::before { left: 16px; top: 16px; width: 42%; height: 8px; }
.ph::after { left: 16px; bottom: 16px; width: 3px; height: 46%; background: var(--accent); }
.entry-body { padding: 16px 18px 14px; }
.entry h3 { font-size: 22px; margin: 10px 0 8px; }
.entry p { color: var(--muted); margin: 0; }
.meta { margin-top: 12px !important; color: var(--accent-2) !important; font-size: 14px; }
.more-row { grid-column: 1 / -1; display: flex; justify-content: flex-end; padding-top: 4px; }
.dim-list { display: flex; flex-direction: column; gap: 18px; }
.dim {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.dim:last-child { border-bottom: 0; padding-bottom: 0; }
.dim h3 { font-size: 24px; margin-bottom: 4px; }
.dim p { color: var(--muted); margin: 0; }
.bar { height: 8px; background: rgba(243,199,176,.12); border-radius: 999px; overflow: hidden; }
.bar span { display: block; height: 100%; background: var(--accent); }
.bar.mid span { width: 100%; background: var(--accent-2); }
.bar.hot span { width: 56%; }
.bar.fresh span { width: 44%; background: var(--accent); opacity: .72; }
.week-list { display: flex; flex-direction: column; }
.week {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  color: inherit;
}
.week:last-child { border-bottom: 1px solid var(--line); }
.week:hover { color: inherit; background: rgba(231,196,168,.04); }
.week time { color: var(--accent); font-size: 14px; }
.week h3 { font-size: 20px; margin-bottom: 4px; }
.week p { margin: 0; color: var(--muted); }
.week em { font-style: normal; color: var(--accent-2); font-size: 14px; }
.rhythm {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
}
.rhythm::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 22px;
  height: 1px;
  background: var(--line);
}
.cell {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 14px 14px;
  position: relative;
}
.cell .node {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  margin-bottom: 14px;
}
.cell h3 { font-size: 18px; margin-bottom: 6px; }
.cell p { color: var(--muted); font-size: 15px; margin: 0; }
.rhythm-foot { margin-top: 16px; color: var(--muted); }
.path-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.path {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.path:hover { color: var(--ink); background: rgba(255,106,61,.06); }
.path-k { color: var(--accent-2); font-weight: 700; }
.meters { padding: 20px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-bar {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 12px;
  align-items: end;
}
.metric-bar p { margin: 0; color: var(--muted); font-size: 13px; letter-spacing: .06em; }
.metric-bar strong { display: block; font-size: 28px; line-height: 1.1; font-weight: 700; color: var(--ink); }
.close-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px 24px;
  background: var(--bg);
  box-shadow: var(--shadow);
}
.close-panel h2 { font-size: 32px; margin: 10px 0 8px; }
.close-panel p { color: var(--muted); margin: 0; max-width: 36em; }
.site-footer { background: var(--bg); border-top: 1px solid var(--line); }
.foot-grid {
  display: grid;
  grid-template-columns: 1.3fr .9fr 1.1fr;
  gap: 24px;
  align-items: start;
  padding: 42px 0 32px;
}
.foot-brand p { color: var(--muted); margin: 12px 0 0; max-width: 26em; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.foot-links a { color: var(--accent-2); }
.foot-links a:hover { color: var(--ink); }
.copy { margin: 0; color: var(--muted); font-size: 14px; align-self: end; }
@media (min-width: 992px) {
  .navbar-toggler { display: none; }
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
    align-items: center;
    flex: 1;
    padding: 0;
    background: transparent;
  }
  .nav-center {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin: 0 auto;
    padding: 0;
    width: auto;
  }
  .nav-home, .nav-pill { width: auto; }
  .btn-nav { width: auto; margin: 0; }
}
@media (max-width: 1024px) {
  .band h1 { font-size: 40px; }
  .band-grid, .entry-wide a, .dim, .week, .path, .metric-bar, .close-panel {
    grid-template-columns: 1fr;
  }
  .entry-wide a { display: block; }
  .week { grid-template-columns: 1fr; gap: 6px; }
  .close-panel { align-items: flex-start; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .copy { grid-column: 1 / -1; }
}
@media (max-width: 991.98px) {
  .navbar-toggler { display: inline-flex; }
  .nav-inner { flex-wrap: wrap; }
  .navbar-collapse {
    background: var(--bg);
    padding-bottom: 16px;
    flex-basis: 100%;
    width: 100%;
  }
  .nav-center {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding-top: 8px;
    margin: 0;
    width: 100%;
  }
  .nav-home, .nav-pill { width: 100%; }
  .btn-nav { width: 100%; margin-top: 10px; }
}
@media (max-width: 768px) {
  .sec { padding: 48px 0; }
  .band { padding: 28px 0 36px; }
  .shelf, .rhythm, .split { grid-template-columns: 1fr; }
  .rhythm::before { display: none; }
  .sec-head { flex-direction: column; align-items: flex-start; }
  .sec-head h2, .close-panel h2 { font-size: 28px; }
  .hero-actions, .btn-main, .btn-line, .more-link { width: 100%; }
  .more-row { justify-content: stretch; }
  .foot-grid { grid-template-columns: 1fr; }
  .summary .big { font-size: 46px; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .band h1 { font-size: 32px; }
  .logo-sub { letter-spacing: .06em; }
  .entry h3 { font-size: 18px; }
  .metric-bar strong { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

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