/* roulang page: index */
:root {
  --bg: #F3F6FB;
  --bg-alt: #E7EEF8;
  --card: #FFFFFF;
  --ink: #1B2430;
  --muted: #5C6B7A;
  --brand: #2C5F8A;
  --deep: #16324A;
  --accent: #C56A2D;
  --accent-hover: #B15E28;
  --moss: #5E7D72;
  --line: #D5E0EE;
  --shadow: 0 10px 28px rgba(22,50,74,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 72px;
  --container: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.page {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
}
main { flex: 1; display: block; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: 16px; }
h1, h2, h3, p { overflow-wrap: break-word; }
main h1, main h2, main h3 { color: var(--deep); font-weight: 700; line-height: 1.35; margin: 0 0 12px; }
main h1 { font-size: 40px; letter-spacing: 0; }
main h2 { font-size: 28px; }
main h3 { font-size: 18px; margin-bottom: 8px; }
main p { margin: 0 0 12px; }
main p:last-child { margin-bottom: 0; }
a { color: var(--brand); }
::selection { background: var(--brand); color: #fff; }
[hidden] { display: none !important; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
div.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}
section.band { padding: 40px 0; position: relative; }
section.band-paper { background: var(--bg); }
section.band-alt { background: var(--bg-alt); }
section.band-white { background: #fff; }
.lead { color: var(--ink); max-width: 760px; margin-bottom: 22px; }
.muted { color: var(--muted); font-size: 13px; line-height: 1.7; }
.kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(94,125,114,0.14);
  color: var(--moss);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--deep);
  box-shadow: 0 8px 24px rgba(22,50,74,0.16);
}
.header-bar {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
}
a.logo {
  color: #F4F7FB;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  z-index: 2;
}
a.logo:hover { color: #fff; text-decoration: none; }
button.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(243,246,251,0.35);
  background: transparent;
  color: #F4F7FB;
  cursor: pointer;
  font-weight: 600;
}
button.nav-toggle:hover { background: rgba(255,255,255,0.06); }
button.nav-toggle:active { transform: translateY(1px); }
.burger {
  width: 16px;
  height: 2px;
  background: #F4F7FB;
  display: inline-block;
  box-shadow: 0 -5px 0 #F4F7FB, 0 5px 0 #F4F7FB;
}
.nav-links { display: flex; align-items: center; gap: 22px; }
a.nav-link {
  color: rgba(244,247,251,0.88);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 0;
}
a.nav-link:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
a.nav-link.is-active { color: #fff; box-shadow: inset 0 -2px 0 var(--accent); }
a.btn, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
}
a.btn-primary, button.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 0;
}
a.btn-primary:hover, button.btn-primary:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }
a.btn-primary:active, button.btn-primary:active { transform: translateY(1px); }
a.btn-primary:focus-visible, button.btn-primary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
a.btn-secondary, button.btn-secondary {
  background: #fff;
  color: var(--brand);
  border: 1px solid var(--brand);
}
a.btn-secondary:hover, button.btn-secondary:hover { background: var(--bg-alt); color: var(--brand); text-decoration: none; }
main a:not(.btn) { color: var(--brand); text-decoration: none; }
main a:not(.btn):hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
header.site-header a:focus-visible, header.site-header button:focus-visible {
  outline: 2px solid #F4F7FB;
  outline-offset: 3px;
}
.board {
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(44,95,138,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44,95,138,0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  overflow: hidden;
}
.coord-mark {
  position: absolute;
  top: 16px;
  right: 22px;
  z-index: 1;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
}
.board-path {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  width: 100%;
  height: 90px;
  z-index: 0;
  pointer-events: none;
}
.board .container { position: relative; z-index: 1; }
.subtitle { font-size: 18px; color: var(--deep); font-weight: 700; margin: 8px 0 14px; }
.metric-grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
.metric {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 18px 16px;
}
.num {
  display: block;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 40px;
  line-height: 1.1;
  font-weight: 700;
  color: var(--accent);
}
.num small { font-size: 14px; margin-left: 4px; color: var(--deep); font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif; }
.metric-label { margin: 8px 0 4px; font-weight: 700; color: var(--deep); }
.matrix { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 16px; align-items: stretch; }
.matrix-side { display: flex; flex-direction: column; gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.tile { padding: 16px; height: 100%; }
.tile-main { display: flex; flex-direction: column; min-height: 100%; }
.tile-sm { display: grid; grid-template-columns: 92px minmax(0,1fr); gap: 12px; align-items: center; flex: 1; }
.ph {
  background: #E7EEF8;
  color: var(--brand);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  position: relative;
  overflow: hidden;
}
.ph-lg { aspect-ratio: 16 / 8; margin-bottom: 16px; font-size: 28px; }
.ph-sm { aspect-ratio: 1; font-size: 18px; }
.ph svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.tile-main .text-link, .tile-sm .text-link { font-weight: 700; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel { padding: 22px; }
.panel h3 { display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-mist { background: var(--brand); }
.dot-copper { background: var(--accent); }
.scale-row { margin: 14px 0; }
.scale-top { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.scale { height: 8px; background: var(--bg-alt); border-radius: 999px; overflow: hidden; }
.scale > span { display: block; height: 100%; border-radius: inherit; }
.panel-before .scale > span { background: #7E8B99; }
.panel-after .scale > span { background: var(--accent); }
.timeline { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; position: relative; margin-top: 8px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 16px;
  height: 2px;
  background: var(--line);
}
.tl-node { position: relative; padding-top: 46px; }
.tl-node::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 5px var(--bg-alt);
}
.tl-node time { display: block; color: var(--moss); font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.news-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.news-row {
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
}
.date-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(94,125,114,0.14);
  color: var(--moss);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.news-row h3 { margin: 0; font-size: 17px; }
.read-link { font-weight: 700; white-space: nowrap; }
.news-detail {
  margin-top: 18px;
  padding: 16px 16px 16px 18px;
  border-left: 3px solid var(--moss);
  background: #fff;
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow);
}
.guard-list { display: flex; flex-direction: column; gap: 12px; }
.guard {
  display: grid;
  grid-template-columns: 48px minmax(0,1fr);
  gap: 14px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}
.icon-badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(44,95,138,0.1);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-badge svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.quick-list { display: flex; flex-direction: column; gap: 10px; }
.quick-item, .faq-item { background: #fff; }
.quick-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.acc-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--deep);
  font-weight: 700;
  cursor: pointer;
  padding: 14px 16px;
}
.acc-btn:hover { background: rgba(231,238,248,0.55); }
.chev {
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(45deg);
  flex: 0 0 auto;
  margin-top: -4px;
  transition: transform .2s ease;
}
.is-open .chev { transform: rotate(225deg); margin-top: 4px; }
.acc-panel { padding: 0 16px 14px; color: var(--ink); }
.faq-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.faq-item + .faq-item { border-top: 1px solid var(--line); }
.faq-item h3 { margin: 0; font-size: 16px; }
.faq-item.is-open { box-shadow: inset 3px 0 0 var(--brand); }
.form-wrap { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,.85fr); gap: 22px; align-items: start; }
.form-card { padding: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 700; color: var(--deep); }
.field.full { grid-column: 1 / -1; }
input[type="text"], select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  padding: 12px 12px;
  font-weight: 400;
  outline: none;
}
textarea { min-height: 120px; resize: vertical; }
input.is-error, select.is-error, textarea.is-error { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(197,106,45,0.12); }
.field-error { color: var(--accent); font-size: 13px; font-weight: 400; }
.form-note { color: var(--muted); font-size: 13px; margin-top: 10px; }
.form-success {
  margin-top: 12px;
  background: rgba(94,125,114,0.14);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--deep);
}
.side-note { padding: 22px; background: var(--deep); color: #E7EEF8; border-radius: var(--radius); }
.side-note h3, .side-note p { color: #F4F7FB; }
.side-note li { margin: 8px 0; }
.scene-grid { display: grid; grid-template-columns: 1.15fr .9fr 1fr; gap: 16px; align-items: start; }
.scene { padding: 18px; }
.scene:nth-child(1) { min-height: 280px; }
.scene:nth-child(2) { min-height: 220px; margin-top: 42px; }
.scene:nth-child(3) { min-height: 310px; margin-top: 16px; }
.scene .ph { height: 92px; margin-bottom: 14px; }
.column-entry {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  justify-content: space-between;
  padding: 22px;
}
.entry-links { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; font-weight: 700; }
.usage-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 20px; align-items: stretch; }
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.steps li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--brand);
}
.step-name { display: block; color: var(--deep); font-weight: 700; margin-bottom: 4px; }
.schematic { padding: 16px; min-height: 100%; display: flex; flex-direction: column; gap: 10px; }
.schematic-top, .schematic-row { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.schematic-top { color: var(--deep); font-weight: 700; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.coord { font-size: 12px; color: var(--muted); letter-spacing: .06em; font-weight: 600; }
.schematic-row { background: var(--bg); border-radius: 10px; padding: 10px 12px; color: var(--ink); font-size: 14px; }
.schematic-row i { width: 8px; height: 8px; border-radius: 50%; background: var(--moss); display: inline-block; margin-right: 8px; }
.pathline { width: 100%; height: 46px; margin-top: auto; }
.cal { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cal-cell { padding: 16px; min-height: 132px; }
.cal-cell strong { display: block; color: var(--deep); }
.weekday { color: var(--moss); font-size: 13px; font-weight: 600; }
.access-list { display: flex; flex-direction: column; gap: 12px; }
.access-item {
  display: grid;
  grid-template-columns: auto minmax(0,1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.idx {
  min-width: 36px;
  height: 28px;
  padding: 0 8px;
  border-radius: 999px;
  background: rgba(94,125,114,0.14);
  color: var(--moss);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.access-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 16px; font-weight: 700; }
.read-list { display: flex; flex-direction: column; }
.read-item { padding: 16px 0; border-bottom: 1px solid var(--line); }
.read-item h3 { margin-bottom: 4px; font-size: 18px; }
footer.site-footer { background: var(--deep); color: #D5E0EE; padding: 48px 0 20px; }
footer.site-footer a { color: #E7EEF8; text-decoration: none; }
footer.site-footer a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-brand { color: #fff; font-size: 20px; font-weight: 700; text-decoration: none; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px; margin-top: 22px; }
footer.site-footer h2 { color: #fff; font-size: 16px; margin: 0 0 10px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin: 6px 0; }
.copyright {
  margin-top: 26px;
  padding-top: 14px;
  border-top: 1px solid rgba(213,224,238,0.2);
  color: #C5D2E2;
  font-size: 13px;
}
@media (min-width: 768px) {
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .cal { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (min-width: 1024px) {
  div.container { width: min(var(--container), calc(100% - 48px)); }
  section.band { padding: 72px 0; }
  button.nav-toggle { display: none !important; }
  .nav-panel { display: flex; flex: 1; align-items: center; justify-content: flex-end; margin-left: 12px; }
  .nav-links {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .header-bar { position: relative; }
}
@media (max-width: 1023px) {
  button.nav-toggle { display: inline-flex; }
  .header-bar { flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
  .nav-panel { display: none; width: 100%; flex-basis: 100%; flex-direction: column; align-items: stretch; padding: 4px 0 12px; }
  .nav-panel.is-open { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  a.nav-link { padding: 12px 4px; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  header.site-header a.btn-primary { width: 100%; margin-top: 12px; }
  .matrix { grid-template-columns: 1fr 1fr; }
  .matrix-side { display: contents; }
  .timeline { grid-template-columns: 1fr; padding-left: 28px; }
  .timeline::before { left: 8px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .tl-node { padding: 0 0 22px 8px; }
  .tl-node::before { top: 4px; left: -28px; }
  .scene-grid { grid-template-columns: 1fr; }
  .scene:nth-child(1), .scene:nth-child(2), .scene:nth-child(3) { min-height: 0; margin-top: 0; }
}
@media (max-width: 767px) {
  .matrix, .compare, .form-wrap, .usage-grid, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .matrix-side { display: flex; flex-direction: column; }
  .tile-sm { grid-template-columns: 72px minmax(0,1fr); }
  .field.full { grid-column: auto; }
  .news-row { grid-template-columns: auto minmax(0,1fr); }
  .news-row .read-link { grid-column: 2; }
}
@media (max-width: 640px) {
  main h1 { font-size: 30px; }
  main h2 { font-size: 22px; }
  .subtitle { font-size: 16px; }
  .num { font-size: 34px; }
  a.logo { font-size: 16px; }
  .coord-mark { display: none; }
}
@media (max-width: 520px) {
  div.container { width: min(var(--container), calc(100% - 32px)); }
  .guard { grid-template-columns: 40px minmax(0,1fr); }
  .icon-badge { width: 40px; height: 40px; }
  .tile-sm { grid-template-columns: 1fr; }
  .ph-sm { aspect-ratio: 16 / 7; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --bg: #F3F6FB;
  --bg-alt: #E7EEF8;
  --card: #FFFFFF;
  --ink: #1B2430;
  --muted: #5C6B7A;
  --brand: #2C5F8A;
  --deep: #16324A;
  --accent: #C56A2D;
  --accent-hover: #B15E28;
  --moss: #5E7D72;
  --line: #D5E0EE;
  --shadow: 0 10px 28px rgba(22,50,74,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 72px;
  --container: 1120px;
}
/* roulang page: category1 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.page {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
}
main { flex: 1; display: block; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: 16px; }
main h1, main h2, main h3 { color: var(--deep); font-weight: 700; line-height: 1.35; margin: 0 0 12px; }
main h1 { font-size: 30px; letter-spacing: 0; }
main h2 { font-size: 22px; }
main h3 { font-size: 18px; margin-bottom: 8px; }
main p { margin: 0 0 12px; }
main p:last-child { margin-bottom: 0; }
a { color: var(--brand); }
div.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}
section.band { padding: 40px 0; position: relative; }
section.band-paper { background: var(--bg); }
section.band-alt { background: var(--bg-alt); }
section.band-white { background: #fff; }
.lead { color: var(--ink); max-width: 760px; margin-bottom: 22px; }
.muted { color: var(--muted); font-size: 13px; line-height: 1.7; }
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--deep);
  box-shadow: 0 8px 24px rgba(22,50,74,0.16);
}
.header-bar {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  flex-wrap: wrap;
}
a.logo {
  color: #F4F7FB;
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  z-index: 2;
}
a.logo:hover { color: #fff; text-decoration: none; }
button.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(243,246,251,0.35);
  background: transparent;
  color: #F4F7FB;
  cursor: pointer;
  font-weight: 600;
}
button.nav-toggle:hover { background: rgba(255,255,255,0.06); }
button.nav-toggle:active { transform: translateY(1px); }
.burger {
  width: 16px;
  height: 2px;
  background: #F4F7FB;
  display: block;
  position: relative;
}
.burger::before, .burger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: #F4F7FB;
}
.burger::before { top: -6px; }
.burger::after { top: 6px; }
nav.nav-panel { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav-links { display: flex; align-items: center; gap: 22px; }
a.nav-link {
  color: rgba(244,247,251,0.88);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 0;
}
a.nav-link:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
a.nav-link.is-active { color: #fff; box-shadow: inset 0 -2px 0 var(--accent); }
a.btn, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
}
a.btn-primary, button.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 0;
}
a.btn-primary:hover, button.btn-primary:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }
a.btn-primary:active, button.btn-primary:active { transform: translateY(1px); }
a.btn-primary:focus-visible, button.btn-primary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
a.btn-secondary, button.btn-secondary {
  background: #fff;
  color: var(--brand);
  border: 1px solid var(--brand);
}
a.btn-secondary:hover, button.btn-secondary:hover { background: var(--bg-alt); color: var(--brand); text-decoration: none; }
main a:not(.btn) { color: var(--brand); text-decoration: none; }
main a:not(.btn):hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
header.site-header a:focus-visible, header.site-header button:focus-visible {
  outline: 2px solid #F4F7FB;
  outline-offset: 3px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(94,125,114,0.14);
  color: var(--moss);
  font-weight: 600;
  font-size: 13px;
  line-height: 1;
}
.tag-blue {
  background: rgba(44,95,138,0.1);
  color: var(--brand);
}
section.cat-head {
  padding: 28px 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.head-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.head-line { margin: 0; max-width: 640px; color: var(--ink); }
.result-meta {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}
.result-meta strong {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  font-size: 32px;
  line-height: 1;
  color: var(--accent);
  font-weight: 700;
}
section.has-grid {
  background-color: var(--bg-alt);
  background-image:
    linear-gradient(rgba(44,95,138,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44,95,138,0.045) 1px, transparent 1px);
  background-size: 28px 28px;
}
.filter-card { padding: 18px 18px 8px; position: relative; overflow: hidden; }
.filter-card h2 { font-size: 18px; }
.coord {
  position: absolute;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
.coord-a { top: 12px; right: 14px; }
.coord-b { bottom: 12px; left: 14px; }
.filter-list { list-style: none; margin: 8px 0 0; padding: 0; }
.filter-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.filter-list span { color: var(--muted); }
.filter-list strong { color: var(--deep); font-weight: 700; text-align: right; }
.route-mini { width: 100%; height: 42px; margin: 8px 0 10px; display: block; }
.h-card {
  padding: 16px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.h-card:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(22,50,74,0.12); }
.thumb {
  aspect-ratio: 16/10;
  border-radius: var(--radius);
  background: #E7EEF8;
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 22px;
  position: relative;
  overflow: hidden;
}
.thumb::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(44,95,138,0.35);
  border-radius: 12px;
}
.h-body h3 { font-size: 18px; }
.h-summary { color: var(--muted); font-size: 14px; line-height: 1.7; margin: 0; }
.text-link { font-weight: 700; white-space: nowrap; }
.more-band { padding-top: 22px; padding-bottom: 22px; border-top: 1px solid var(--line); }
.more-note { margin: 0; color: var(--ink); }
.more-link { font-weight: 700; font-size: 16px; }
.dim-card { padding: 18px; height: 100%; }
.dim-card h3 { font-size: 16px; }
.dim-card p { color: var(--muted); font-size: 14px; margin: 8px 0 0; }
.path-list { list-style: none; margin: 0; padding: 0; }
.path-list li { position: relative; padding: 0 0 26px 42px; }
.path-list li:last-child { padding-bottom: 0; }
.path-list li::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 28px;
  bottom: 0;
  width: 2px;
  background: var(--line);
}
.path-list li:last-child::before { display: none; }
.path-step {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(94,125,114,0.16);
  color: var(--moss);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
}
.path-list h3 { margin-bottom: 4px; font-size: 17px; }
.path-list p { color: var(--muted); font-size: 14px; }
.route { width: 140px; height: 240px; display: none; margin-inline: auto; }
.update-card { padding: 22px; }
.update-card p { max-width: 760px; }
.faq-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.faq-item + .faq-item { border-top: 1px solid var(--line); }
.faq-item.is-open { box-shadow: inset 3px 0 0 var(--brand); }
.faq-item h3 { margin: 0; font-size: 16px; }
.acc-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--deep);
  font-weight: 700;
  cursor: pointer;
  padding: 16px 18px;
}
.acc-btn:hover { background: rgba(231,238,248,0.55); }
.acc-btn:active { transform: translateY(1px); }
.chev {
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(45deg);
  flex: none;
  transition: transform .2s ease;
}
.faq-item.is-open .chev { transform: rotate(-135deg); margin-top: 4px; }
.acc-panel { padding: 0 18px 16px; color: var(--ink); }
.related-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.related-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.related-list h3 { margin: 0 0 4px; font-size: 17px; }
.related-list p { margin: 0; color: var(--muted); font-size: 14px; }
.back-link { font-weight: 700; }
footer.site-footer {
  background: var(--deep);
  color: rgba(244,247,251,0.86);
  padding: 48px 0 20px;
}
.footer-brand {
  color: #F4F7FB;
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
}
.footer-brand:hover { color: #fff; text-decoration: none; }
.site-footer > .container > p { margin: 10px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 22px;
}
.site-footer h2 { margin: 0 0 10px; color: #fff; font-size: 16px; font-weight: 700; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0 0 8px; }
.site-footer a { color: rgba(244,247,251,0.88); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.copyright {
  border-top: 1px solid rgba(213,224,238,0.22);
  margin-top: 18px;
  padding-top: 14px;
  font-size: 13px;
  color: rgba(244,247,251,0.72);
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  main h2 { font-size: 28px; }
}
@media (min-width: 1024px) {
  div.container { width: min(var(--container), calc(100% - 48px)); }
  section.band { padding: 72px 0; }
  section.cat-head { padding: 36px 0; }
  section.more-band { padding-top: 28px; padding-bottom: 28px; }
  main h1 { font-size: 40px; }
  .route { display: block; }
}
@media (max-width: 1023px) {
  button.nav-toggle { display: inline-flex; }
  nav.nav-panel {
    display: none;
    width: 100%;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-left: 0;
    padding: 4px 0 14px;
  }
  nav.nav-panel.is-open { display: flex; }
  .nav-links { flex-direction: column; align-items: flex-start; gap: 0; width: 100%; }
  a.nav-link { width: 100%; font-size: 16px; padding: 12px 0; }
  header.site-header a.btn-primary { width: 100%; }
}
@media (max-width: 639px) {
  .result-meta { white-space: normal; flex-wrap: wrap; }
  a.logo { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .h-card, .acc-btn, .chev, a.btn { transition: none; }
}