/* roulang page: index */
:root {
  --bg: #F3F6FB;
  --card: #FFFFFF;
  --text: #1A2740;
  --muted: #5C6B82;
  --blue: #3C7BE0;
  --blue-press: #2A5FBF;
  --lilac: #9A6BB8;
  --lilac-bg: #F6EFF8;
  --line: #E3EAF4;
  --shadow: 0 14px 36px rgba(42, 95, 191, .08);
  --shadow-hover: 0 16px 36px rgba(42, 95, 191, .16);
  --radius: 18px;
  --radius-input: 12px;
  --err: #B42318;
  --pad: 88px;
  --header-offset: 148px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(60, 123, 224, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 123, 224, .08) 1px, transparent 1px);
  background-size: 32px 32px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--lilac);
  outline-offset: 2px;
}
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
main section { scroll-margin-top: var(--header-offset); }
h1 { font-size: 40px; line-height: 1.25; font-weight: 700; }
h2 { font-size: 28px; line-height: 1.35; font-weight: 700; }
h3 { font-size: 20px; line-height: 1.45; font-weight: 700; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(42, 95, 191, .06);
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  min-height: 44px;
  font-weight: 700;
}
.logo:hover { color: var(--blue); text-decoration: none; }
.logo-mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--lilac);
  box-shadow: 0 0 0 6px var(--lilac-bg);
  flex: none;
}
.logo-text { font-size: 18px; line-height: 1.35; }
.header-tools { display: flex; align-items: center; gap: 12px; min-width: 0; }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--lilac);
  background: var(--lilac-bg);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  border-radius: 999px;
}
.main-nav a:hover { color: var(--blue); text-decoration: underline; }
.main-nav a.active { color: var(--blue); box-shadow: inset 0 -2px 0 var(--lilac); }
.step-nav { border-top: 1px solid var(--line); background: #fff; }
.step-nav ol {
  display: flex;
  gap: 10px;
  list-style: none;
  padding: 10px 0 12px;
}
.step-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--blue);
  background: #fff;
  color: var(--blue);
  text-decoration: none;
  font-weight: 700;
  position: relative;
}
.step-nav a:hover { text-decoration: none; background: var(--lilac-bg); }
.step-nav .num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  background: rgba(60, 123, 224, .1);
}
.step-nav .is-current a { background: var(--blue); color: #fff; border-color: var(--blue); }
.step-nav .is-current .num { background: rgba(255, 255, 255, .2); color: #fff; }
.step-nav .is-done a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 22px;
  height: 3px;
  border-radius: 999px;
  background: var(--lilac);
  transform: translateX(-50%);
}
.section { padding: var(--pad) 0; }
.section-white { background: #fff; }
.section-lilac { background: var(--lilac-bg); }
.section-head { max-width: 780px; margin-bottom: 22px; }
.subhead { margin: 8px 0 0; font-size: 16px; font-weight: 700; color: var(--text); }
.desc { margin-top: 10px; color: var(--muted); font-size: 17px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 10px;
}
.kicker i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lilac);
  display: inline-block;
}
.metrics-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.15fr);
  gap: 28px;
  align-items: stretch;
}
.lead { margin-top: 12px; font-size: 17px; color: var(--text); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  appearance: none;
  -webkit-appearance: none;
}
.btn:hover { background: var(--blue-press); color: #fff; text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn:active { transform: translateY(0); background: var(--blue-press); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-secondary:hover { background: var(--lilac-bg); color: var(--blue-press); }
.metric-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.1fr .9fr;
  gap: 12px;
}
.metric {
  background:
    linear-gradient(var(--line), var(--line)) left 10px top 10px / 14px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) left 10px top 10px / 1px 14px no-repeat,
    linear-gradient(var(--line), var(--line)) right 10px top 10px / 14px 1px no-repeat,
    linear-gradient(var(--line), var(--line)) right 10px top 10px / 1px 14px no-repeat,
    var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 14px 16px;
  min-height: 148px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: border-color .2s ease;
}
.metric:hover { border-color: var(--lilac); }
.metric .axis { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.metric strong {
  display: block;
  margin: 8px 0 2px;
  font-size: 34px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}
.metric span { color: var(--muted); }
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}
.matrix-main { grid-column: 1 / 8; grid-row: 1 / 3; min-height: 320px; }
.matrix-side-a { grid-column: 8 / 13; grid-row: 1; }
.matrix-side-b { grid-column: 8 / 13; grid-row: 2; }
.matrix-band { grid-column: 1 / 13; }
.scene-card, .note-card, .topic, .form-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.scene-card { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.scene-card:hover, .note-card:hover, .topic:hover { border-color: var(--lilac); }
.coord { color: var(--muted); font-variant-numeric: tabular-nums; font-weight: 700; font-size: 14px; }
.scene-card p, .note-card p, .topic p, .guard p, .qa-a, .scale p { color: var(--muted); }
.inline-link { font-weight: 700; min-height: 44px; display: inline-flex; align-items: center; }
.matrix-band { flex-direction: row; align-items: center; justify-content: space-between; gap: 18px; }
.matrix-band .band-copy { max-width: 760px; }
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.cmp-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.cmp-table caption { text-align: left; padding: 16px 18px 0; font-weight: 700; color: var(--text); }
.cmp-table th, .cmp-table td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.cmp-table th { color: var(--muted); font-weight: 700; background: #F8FBFF; }
.cmp-table tr:last-child td { border-bottom: 0; }
.cmp-table .is-focus { background: var(--lilac-bg); }
.timeline { overflow-x: auto; padding-bottom: 6px; }
.timeline ol { display: flex; gap: 14px; list-style: none; min-width: 920px; }
.timeline li {
  flex: 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  min-height: 168px;
  position: relative;
}
.timeline li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lilac);
  position: absolute;
  left: 16px;
  top: -5px;
}
.timeline time { display: block; color: var(--blue); font-variant-numeric: tabular-nums; font-weight: 700; margin-bottom: 8px; }
.news-list { list-style: none; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.news-list li {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 68px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--line);
}
.news-list li:last-child { border-bottom: 0; }
.news-list li:hover { background: var(--lilac-bg); }
.news-list time { font-variant-numeric: tabular-nums; color: var(--muted); }
.news-list a { font-weight: 700; color: var(--text); }
.news-list a:hover { color: var(--blue); }
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); display: inline-block; }
.status.wait i { background: var(--muted); }
.status.done i { background: var(--lilac); }
.more-row { margin-top: 16px; }
.more-row a { font-weight: 700; min-height: 44px; display: inline-flex; align-items: center; }
.guard-list, .qa-list { display: grid; gap: 12px; }
.guard, .qa-bar {
  display: grid;
  grid-template-columns: 44px 168px 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;
  min-height: 84px;
}
.qa-bar { color: var(--text); text-decoration: none; }
.qa-bar:hover { border-color: var(--lilac); text-decoration: none; }
.waypoint {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--lilac);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--lilac-bg);
}
.waypoint i { width: 8px; height: 8px; border-radius: 50%; background: var(--lilac); display: block; }
.qa-k { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--blue); }
.qa-bar strong, .guard h3 { display: block; }
.faq-list { border-top: 1px solid var(--line); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.faq-q {
  width: 100%;
  min-height: 56px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-weight: 700;
  appearance: none;
  -webkit-appearance: none;
}
.faq-q:hover { background: #F8FBFF; }
.plus { width: 18px; height: 18px; position: relative; flex: none; }
.plus::before, .plus::after { content: ""; position: absolute; background: var(--blue); border-radius: 1px; }
.plus::before { width: 18px; height: 2px; left: 0; top: 8px; }
.plus::after { width: 2px; height: 18px; left: 8px; top: 0; transition: opacity .2s ease; }
.faq-q[aria-expanded="true"] .plus::after { opacity: 0; }
.faq-a { padding: 0 18px 16px; border-bottom: 1px solid var(--line); background: #fff; }
.faq-a p { color: var(--muted); }
.form-card { padding: 22px; }
.form-grid { display: grid; gap: 14px; }
label.field { display: block; font-weight: 700; }
.field input, .field select, .field textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-input);
  background: #fff;
  min-height: 48px;
  padding: 10px 14px;
}
.field textarea { min-height: 120px; resize: vertical; }
.select-wrap { position: relative; }
.select-wrap::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}
.field select { appearance: none; -webkit-appearance: none; padding-right: 36px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--lilac); }
.is-invalid { border-color: var(--err) !important; }
.check { display: flex; align-items: flex-start; gap: 10px; min-height: 44px; font-weight: 700; }
.check input { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--blue); }
.check.is-invalid span { color: var(--err); }
.form-msg { min-height: 24px; margin-top: 12px; }
.form-msg.error { color: var(--err); font-weight: 700; }
.form-msg.ok { color: var(--text); background: var(--lilac-bg); border: 1px solid var(--lilac); border-radius: var(--radius-input); padding: 12px 14px; }
.topic-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.topic { min-height: 180px; padding: 18px; display: flex; flex-direction: column; justify-content: flex-end; gap: 8px; color: var(--text); position: relative; overflow: hidden; }
.topic:hover { color: var(--text); }
.topic h3, .topic p, .topic .coord { position: relative; z-index: 1; }
.swatch { position: absolute; border-radius: 16px; background: rgba(154, 107, 184, .2); }
.topic-a { grid-column: span 5; min-height: 240px; }
.topic-b { grid-column: span 3; min-height: 200px; }
.topic-c { grid-column: span 4; min-height: 220px; }
.topic-d { grid-column: span 7; min-height: 190px; }
.topic-e { grid-column: span 5; min-height: 210px; }
.topic-a .swatch { width: 120px; height: 86px; right: 16px; top: 16px; background: rgba(60, 123, 224, .16); }
.topic-b .swatch { width: 72px; height: 72px; left: 16px; top: 16px; }
.topic-c .swatch { width: 140px; height: 48px; right: 18px; top: 20px; background: rgba(60, 123, 224, .12); }
.topic-d .swatch { width: 90px; height: 110px; right: 20px; bottom: 16px; }
.topic-e .swatch { width: 160px; height: 40px; left: 16px; top: 18px; }
.filter-board {
  display: grid;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.filter-row { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; align-items: start; }
.filter-row strong { min-height: 44px; display: inline-flex; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  appearance: none;
  -webkit-appearance: none;
}
.chip:hover { border-color: var(--blue); }
.chip[aria-pressed="true"] { border-color: var(--lilac); background: var(--lilac-bg); box-shadow: inset 0 0 0 1px var(--lilac); }
.coord-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.coord-tags a, .coord-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow);
}
.coord-tags a:hover { border-color: var(--lilac); text-decoration: none; }
.coord-tags em { font-style: normal; color: var(--muted); margin-right: 8px; font-variant-numeric: tabular-nums; }
.note-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.note-card { padding: 22px; }
.note-card header { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.scale { list-style: none; margin-left: 8px; border-left: 2px solid var(--blue); }
.scale li { position: relative; padding: 0 0 22px 18px; }
.scale li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lilac);
  position: absolute;
  left: -6px;
  top: 8px;
}
.scale time { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--blue); }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding-top: 36px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr 1fr; gap: 28px; padding-bottom: 28px; }
.footer-title { font-weight: 700; margin-bottom: 8px; }
.footer-links { list-style: none; }
.footer-links a { display: flex; align-items: center; min-height: 44px; }
.footer-bottom { border-top: 1px solid var(--line); padding: 16px 0 22px; color: var(--muted); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
@media (max-width: 1200px) {
  .container { width: min(960px, calc(100% - 36px)); }
  h1 { font-size: 36px; }
  .metric strong { font-size: 30px; }
}
@media (max-width: 992px) {
  :root { --pad: 64px; --header-offset: 188px; }
  .metrics-layout, .note-grid, .footer-grid, .filter-row { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .matrix-main, .matrix-side-a, .matrix-side-b, .matrix-band { grid-column: 1 / -1; grid-row: auto; min-height: 0; }
  .matrix-band { flex-direction: column; align-items: flex-start; }
  .timeline ol { flex-direction: column; min-width: 0; }
  .topic-a, .topic-b, .topic-c, .topic-d, .topic-e { grid-column: 1 / -1; }
  .guard, .qa-bar { grid-template-columns: 44px minmax(0, 1fr); }
  .guard p, .qa-a { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  :root { --pad: 48px; --header-offset: 210px; }
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  .header-bar { flex-wrap: wrap; padding: 8px 0; }
  .header-tools { width: 100%; }
  .main-nav { width: 100%; overflow-x: auto; }
  .main-nav a { flex: 0 0 auto; }
  .step-nav ol { overflow-x: auto; flex-wrap: nowrap; }
  .step-nav li { flex: 0 0 auto; }
  .news-list li { grid-template-columns: 1fr auto; }
  .news-list time { grid-column: 1 / -1; }
  .logo-text { font-size: 16px; }
}
@media (max-width: 480px) {
  .container { width: calc(100% - 28px); }
  h1 { font-size: 28px; }
  .metric-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .badge { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .scene-card, .topic, .note-card { transition: none; }
}

/* roulang page: category2 */
:root {
 --bg: #F3F6FB;
 --card: #FFFFFF;
 --text: #1A2740;
 --muted: #5C6B82;
 --blue: #3C7BE0;
 --blue-press: #2A5FBF;
 --lilac: #9A6BB8;
 --lilac-bg: #F6EFF8;
 --line: #E3EAF4;
 --shadow: 0 14px 36px rgba(42, 95, 191, .08);
 --shadow-hover: 0 16px 36px rgba(42, 95, 191, .16);
 --radius: 18px;
 --radius-input: 12px;
 --err: #B42318;
 --pad: 88px;
 --header-offset: 148px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, figure, blockquote { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
body {
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
 color: var(--text);
 background-color: var(--bg);
 background-image:
  linear-gradient(rgba(60, 123, 224, .08) 1px, transparent 1px),
  linear-gradient(90deg, rgba(60, 123, 224, .08) 1px, transparent 1px);
 background-size: 32px 32px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
 outline: 3px solid var(--lilac);
 outline-offset: 2px;
}
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
main section { scroll-margin-top: var(--header-offset); }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: #fff;
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(42, 95, 191, .06);
}
.header-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 72px;
}
.logo {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 color: var(--text);
 text-decoration: none;
 min-height: 44px;
 font-weight: 700;
}
.logo:hover { color: var(--blue); text-decoration: none; }
.logo-mark {
 width: 18px;
 height: 18px;
 border-radius: 50%;
 background: var(--lilac);
 box-shadow: 0 0 0 6px var(--lilac-bg);
 flex: none;
}
.logo-text { font-size: 18px; line-height: 1.35; }
.header-tools { display: flex; align-items: center; gap: 12px; min-width: 0; }
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 32px;
 padding: 0 12px;
 border-radius: 999px;
 border: 1px solid var(--lilac);
 background: var(--lilac-bg);
 color: var(--text);
 font-size: 14px;
 font-weight: 700;
 white-space: nowrap;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 12px;
 color: var(--text);
 text-decoration: none;
 font-weight: 700;
 border-radius: 999px;
 white-space: nowrap;
}
.main-nav a:hover { color: var(--blue); text-decoration: underline; }
.main-nav a.active { color: var(--blue); box-shadow: inset 0 -2px 0 var(--lilac); }
.step-nav { border-top: 1px solid var(--line); background: #fff; }
.step-nav .container { overflow-x: auto; }
.step-nav ol {
 display: flex;
 gap: 10px;
 list-style: none;
 padding: 10px 0 12px;
 margin: 0;
}
.step-nav a {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 44px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--blue);
 background: #fff;
 color: var(--blue);
 text-decoration: none;
 font-weight: 700;
 position: relative;
 white-space: nowrap;
}
.step-nav a:hover { text-decoration: none; background: var(--lilac-bg); }
.step-nav .num {
 width: 22px;
 height: 22px;
 border-radius: 50%;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-variant-numeric: tabular-nums;
 font-size: 13px;
 background: rgba(60, 123, 224, .1);
}
.step-nav .is-current a { background: var(--blue); color: #fff; border-color: var(--blue); }
.step-nav .is-current .num { background: rgba(255, 255, 255, .2); color: #fff; }
.step-nav .is-done a::after {
 content: "";
 position: absolute;
 left: 50%;
 bottom: 6px;
 width: 22px;
 height: 3px;
 border-radius: 999px;
 background: var(--lilac);
 transform: translateX(-50%);
}
.section { padding: var(--pad) 0; }
.section-white { background: #fff; }
.section-lilac { background: var(--lilac-bg); }
.section-head { max-width: 780px; margin-bottom: 22px; }
.section-head h2, .index-copy h1 { font-weight: 700; letter-spacing: 0; }
h1 { font-size: 40px; line-height: 1.25; font-weight: 700; }
h2 { font-size: 28px; line-height: 1.35; font-weight: 700; }
h3 { font-size: 20px; line-height: 1.45; font-weight: 700; }
.lead { margin-top: 12px; font-size: 17px; color: var(--text); }
.muted { color: var(--muted); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 22px; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 10px 22px;
 border-radius: 999px;
 border: 1px solid transparent;
 background: var(--blue);
 color: #fff;
 font-weight: 700;
 text-decoration: none;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
 appearance: none;
 -webkit-appearance: none;
}
.btn:hover { background: var(--blue-press); color: #fff; text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn:active { transform: translateY(0); background: var(--blue-press); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-secondary:hover { background: var(--lilac-bg); color: var(--blue-press); }
.text-more { font-weight: 700; min-height: 44px; display: inline-flex; align-items: center; }
.index-head { padding-bottom: 28px; }
.head-split {
 display: flex;
 align-items: flex-end;
 justify-content: space-between;
 gap: 24px;
}
.adult-strip {
 display: flex;
 align-items: center;
 gap: 10px;
 min-height: 52px;
 max-width: 320px;
 padding: 12px 16px;
 background: var(--lilac-bg);
 border: 1px solid var(--lilac);
 border-radius: 999px;
 color: var(--text);
 font-weight: 700;
}
.adult-strip svg { flex: none; }
.read-shell {
 display: grid;
 grid-template-columns: 248px minmax(0, 1fr);
 gap: 22px;
 align-items: start;
 padding-bottom: var(--pad);
}
.index-rail, .group-board, .compare-card, .note-card, .legend-card, .faq-card, .action-card {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.index-rail {
 position: sticky;
 top: var(--header-offset);
 padding: 18px 14px;
}
.rail-label {
 margin: 4px 8px 12px;
 color: var(--muted);
 font-size: 14px;
 font-weight: 700;
}
.rail-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.rail-list a {
 display: flex;
 align-items: center;
 gap: 10px;
 min-height: 44px;
 padding: 8px 10px;
 border-radius: 12px;
 color: var(--text);
 text-decoration: none;
 border: 1px solid transparent;
}
.rail-list a:hover { border-color: var(--lilac); background: var(--lilac-bg); text-decoration: none; }
.rail-key {
 width: 32px;
 height: 32px;
 border-radius: 50%;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 background: rgba(60, 123, 224, .1);
 color: var(--blue);
 font-weight: 700;
 flex: none;
}
.group-board { padding: 8px 8px 12px; }
.group-block { padding: 8px 12px 4px; scroll-margin-top: var(--header-offset); }
.group-title {
 display: flex;
 align-items: baseline;
 justify-content: space-between;
 gap: 12px;
 padding: 14px 8px 8px;
}
.group-title span { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 14px; }
.entry-list { list-style: none; padding: 0; }
.entry-list li {
 display: grid;
 grid-template-columns: minmax(0, 1fr) auto;
 gap: 8px 16px;
 align-items: center;
 min-height: 78px;
 padding: 12px 10px;
 border-top: 1px solid var(--line);
}
.entry-list h3 { font-size: 18px; }
.entry-list p { color: var(--muted); font-size: 15px; }
.entry-meta { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.tag {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 padding: 0 10px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--muted);
 font-size: 13px;
 font-variant-numeric: tabular-nums;
}
.tag-on { border-color: var(--lilac); color: var(--text); background: var(--lilac-bg); }
.compare-grid, .note-grid, .legend-grid {
 display: grid;
 gap: 16px;
}
.compare-grid { grid-template-columns: 1fr 1fr; }
.compare-card, .note-card, .legend-card { padding: 22px; transition: border-color .2s ease, box-shadow .2s ease; }
.compare-card:hover, .note-card:hover, .legend-card:hover { border-color: var(--lilac); }
.compare-card h3, .note-card h3, .legend-card h3 { margin-bottom: 8px; }
.fine-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.fine-table th, .fine-table td {
 text-align: left;
 padding: 10px 0;
 border-bottom: 1px solid var(--line);
 vertical-align: top;
 font-weight: 400;
}
.fine-table th { width: 38%; color: var(--muted); font-weight: 700; }
.note-grid { grid-template-columns: 1.15fr .85fr; }
.note-card .who { margin-top: 14px; color: var(--blue); font-weight: 700; }
.legend-grid { grid-template-columns: 1.2fr .8fr; }
.legend-row {
 display: flex;
 justify-content: space-between;
 gap: 12px;
 min-height: 48px;
 align-items: center;
 border-bottom: 1px solid var(--line);
}
.legend-row:last-child { border-bottom: 0; }
.swatch {
 width: 44px;
 height: 10px;
 border-radius: 999px;
 background: var(--line);
 position: relative;
}
.swatch::before {
 content: "";
 position: absolute;
 left: 0;
 top: 0;
 bottom: 0;
 border-radius: inherit;
 background: var(--lilac);
}
.swatch-s::before { width: 35%; }
.swatch-m::before { width: 62%; background: var(--blue); }
.swatch-l::before { width: 88%; }
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-item summary {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 64px;
 padding: 12px 0;
 font-weight: 700;
 cursor: pointer;
 list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "+";
 width: 28px;
 height: 28px;
 border-radius: 50%;
 border: 1px solid var(--line);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 color: var(--blue);
 flex: none;
}
.faq-item[open] summary::after { content: "–"; border-color: var(--lilac); color: var(--lilac); }
.faq-item p { color: var(--muted); padding: 0 36px 16px 0; }
.action-card {
 padding: 28px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 18px;
}
.site-footer { background: #fff; border-top: 1px solid var(--line); padding-top: 48px; }
.footer-grid {
 display: grid;
 grid-template-columns: 1.4fr .8fr 1fr;
 gap: 28px;
}
.footer-title { font-weight: 700; margin-bottom: 10px; }
.footer-links { list-style: none; padding: 0; }
.footer-links a { display: inline-flex; min-height: 36px; align-items: center; color: var(--text); }
.footer-grid p { color: var(--muted); }
.footer-bottom { margin-top: 28px; border-top: 1px solid var(--line); }
.footer-bottom .container { min-height: 64px; display: flex; align-items: center; color: var(--muted); }
@media (max-width: 1200px) {
 .container { width: min(1120px, calc(100% - 32px)); }
}
@media (max-width: 992px) {
 :root { --pad: 64px; --header-offset: 188px; }
 h1 { font-size: 34px; }
 .read-shell, .compare-grid, .note-grid, .legend-grid, .footer-grid { grid-template-columns: 1fr; }
 .index-rail { position: static; }
 .rail-list { flex-direction: row; overflow-x: auto; padding-bottom: 4px; }
 .rail-list a { white-space: nowrap; }
 .head-split, .action-card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 768px) {
 :root { --header-offset: 210px; }
 .header-bar { flex-wrap: wrap; padding: 10px 0; }
 .header-tools { width: 100%; overflow-x: auto; }
 .logo-text { font-size: 16px; }
 .entry-list li { grid-template-columns: 1fr; }
 .entry-meta { justify-content: flex-start; }
}
@media (max-width: 480px) {
 :root { --pad: 48px; }
 h1 { font-size: 30px; }
 h2 { font-size: 24px; }
 .container { width: calc(100% - 28px); }
 .adult-strip { border-radius: 18px; }
 .group-title { flex-direction: column; align-items: flex-start; }
}

/* roulang page: category1 */
:root {
 --bg: #F3F6FB;
 --card: #FFFFFF;
 --text: #1A2740;
 --muted: #5C6B82;
 --blue: #3C7BE0;
 --blue-press: #2A5FBF;
 --lilac: #9A6BB8;
 --lilac-bg: #F6EFF8;
 --line: #E3EAF4;
 --shadow: 0 14px 36px rgba(42, 95, 191, .08);
 --shadow-hover: 0 16px 36px rgba(42, 95, 191, .16);
 --radius: 18px;
 --radius-input: 12px;
 --err: #B42318;
 --pad: 88px;
 --header-offset: 148px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, figure, blockquote { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
body {
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
 color: var(--text);
 background-color: var(--bg);
 background-image:
  linear-gradient(rgba(60, 123, 224, .08) 1px, transparent 1px),
  linear-gradient(90deg, rgba(60, 123, 224, .08) 1px, transparent 1px);
 background-size: 32px 32px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
 outline: 3px solid var(--lilac);
 outline-offset: 2px;
}
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
main section { scroll-margin-top: var(--header-offset); }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: #fff;
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(42, 95, 191, .06);
}
.header-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 72px;
}
.logo {
 display: inline-flex;
 align-items: center;
 gap: 10px;
 color: var(--text);
 text-decoration: none;
 min-height: 44px;
 font-weight: 700;
}
.logo:hover { color: var(--blue); text-decoration: none; }
.logo-mark {
 width: 18px;
 height: 18px;
 border-radius: 50%;
 background: var(--lilac);
 box-shadow: 0 0 0 6px var(--lilac-bg);
 flex: none;
}
.logo-text { font-size: 18px; line-height: 1.35; }
.header-tools { display: flex; align-items: center; gap: 12px; min-width: 0; }
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 32px;
 padding: 0 12px;
 border-radius: 999px;
 border: 1px solid var(--lilac);
 background: var(--lilac-bg);
 color: var(--text);
 font-size: 14px;
 font-weight: 700;
 white-space: nowrap;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
 display: inline-flex;
 align-items: center;
 min-height: 44px;
 padding: 0 12px;
 color: var(--text);
 text-decoration: none;
 font-weight: 700;
 border-radius: 999px;
 flex: none;
}
.main-nav a:hover { color: var(--blue); text-decoration: underline; }
.main-nav a.active { color: var(--blue); box-shadow: inset 0 -2px 0 var(--lilac); }
.step-nav { border-top: 1px solid var(--line); background: #fff; }
.step-nav ol {
 display: flex;
 gap: 10px;
 list-style: none;
 margin: 0;
 padding: 10px 0 12px;
}
.step-nav li { flex: none; }
.step-nav a {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 min-height: 44px;
 padding: 0 16px;
 border-radius: 999px;
 border: 1px solid var(--blue);
 background: #fff;
 color: var(--blue);
 text-decoration: none;
 font-weight: 700;
 position: relative;
 white-space: nowrap;
}
.step-nav a:hover { text-decoration: none; background: var(--lilac-bg); }
.step-nav .num {
 width: 22px;
 height: 22px;
 border-radius: 50%;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-variant-numeric: tabular-nums;
 font-size: 13px;
 background: rgba(60, 123, 224, .1);
}
.step-nav .is-current a { background: var(--blue); color: #fff; border-color: var(--blue); }
.step-nav .is-current .num { background: rgba(255, 255, 255, .2); color: #fff; }
.step-nav .is-done a::after {
 content: "";
 position: absolute;
 left: 50%;
 bottom: 6px;
 width: 22px;
 height: 3px;
 border-radius: 999px;
 background: var(--lilac);
 transform: translateX(-50%);
}
.section { padding: var(--pad) 0; }
.section-white { background: #fff; }
.section-lilac { background: var(--lilac-bg); }
.section-head { max-width: 780px; margin-bottom: 22px; }
.section-head h2, .cat-head h1, .bound h3, .scene-card h2, .faq-item summary {
 font-weight: 700;
}
.cat-head { padding: var(--pad) 0 18px; }
.cat-head h1 { font-size: 40px; line-height: 1.25; letter-spacing: 0; }
.sub, .lead { margin-top: 12px; font-size: 17px; color: var(--text); }
.section-head h2 { font-size: 28px; line-height: 1.35; }
.section-head p, .bound p, .scene-card p, .tl-item p, .faq-item p, .extend-bar p, .footer-grid p {
 color: var(--muted);
}
.legend-bar {
 padding: 0 0 20px;
 background: transparent;
}
.legend-list {
 display: grid;
 grid-template-columns: 1.45fr 1fr .82fr;
 gap: 12px;
 list-style: none;
 padding: 0;
}
.legend-list li {
 display: flex;
 align-items: center;
 gap: 12px;
 min-height: 72px;
 padding: 12px 16px;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.legend-list li.is-on {
 border-color: var(--lilac);
 background: var(--lilac-bg);
}
.legend-ico {
 width: 36px;
 height: 36px;
 border-radius: 50%;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 color: var(--lilac);
 background: #fff;
 border: 1px solid var(--line);
 flex: none;
}
.legend-k { display: block; font-weight: 700; color: var(--text); line-height: 1.4; }
.legend-v { display: block; color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.scene-board {
 display: grid;
 grid-template-columns: repeat(12, 1fr);
 gap: 16px;
}
.span-8 { grid-column: span 8; }
.span-4 { grid-column: span 4; }
.scene-card, .bound, .extend-bar {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 transition: border-color .2s ease, box-shadow .2s ease;
}
.scene-card { padding: 22px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.scene-card:hover, .bound:hover { border-color: var(--lilac); }
.h-a { min-height: 248px; }
.h-b { min-height: 176px; }
.h-c { min-height: 214px; }
.coord {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 color: var(--blue);
 font-size: 13px;
 font-weight: 700;
 font-variant-numeric: tabular-nums;
 letter-spacing: .02em;
}
.scene-card h2, .bound h3 { font-size: 20px; line-height: 1.45; }
.scale {
 margin-top: auto;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 10px;
 padding-top: 12px;
 border-top: 1px dashed var(--line);
 color: var(--text);
 font-variant-numeric: tabular-nums;
 font-weight: 700;
}
.scale span { color: var(--muted); font-weight: 400; }
.dot, .status-dot {
 width: 10px;
 height: 10px;
 border-radius: 50%;
 background: var(--lilac);
 box-shadow: 0 0 0 5px var(--lilac-bg);
 flex: none;
}
.dot-wait {
 background: #fff;
 border: 2px solid var(--blue);
 box-shadow: none;
}
.boundary-grid {
 display: grid;
 grid-template-columns: 1.35fr .85fr 1fr 1.1fr;
 gap: 16px;
}
.bound { padding: 22px; min-width: 0; min-height: 180px; }
.bound strong {
 display: inline-flex;
 align-items: center;
 min-height: 28px;
 margin-bottom: 8px;
 padding: 0 10px;
 border-radius: 999px;
 background: var(--lilac-bg);
 color: var(--text);
 font-size: 13px;
}
.news-list {
 list-style: none;
 padding: 0;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.news-list li {
 display: grid;
 grid-template-columns: 118px minmax(0, 1fr) auto;
 gap: 12px;
 align-items: center;
 min-height: 72px;
 padding: 8px 16px;
 border-bottom: 1px solid var(--line);
}
.news-list li:last-child { border-bottom: 0; }
.news-list li:hover { background: var(--lilac-bg); }
.news-list time { font-variant-numeric: tabular-nums; color: var(--muted); }
.news-list a { font-weight: 700; color: var(--text); }
.news-list a:hover { color: var(--blue); }
.timeline {
 display: flex;
 gap: 0;
 overflow-x: auto;
 padding: 8px 0 12px;
 scroll-snap-type: x proximity;
}
.tl-item {
 position: relative;
 min-width: 230px;
 padding: 36px 22px 8px 0;
 scroll-snap-align: start;
}
.tl-item::before {
 content: "";
 position: absolute;
 top: 10px;
 left: 0;
 right: 0;
 height: 2px;
 background: rgba(154, 107, 184, .45);
}
.tl-item::after {
 content: "";
 position: absolute;
 top: 4px;
 left: 0;
 width: 14px;
 height: 14px;
 border-radius: 50%;
 background: var(--lilac);
 box-shadow: 0 0 0 6px var(--lilac-bg);
}
.tl-date {
 font-variant-numeric: tabular-nums;
 font-weight: 700;
 color: var(--blue);
}
.tl-item h3 { margin-top: 6px; font-size: 20px; line-height: 1.45; }
.faq-list { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-item summary {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 16px;
 min-height: 64px;
 padding: 14px 18px;
 font-size: 18px;
 cursor: pointer;
 list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
 content: "+";
 width: 28px;
 height: 28px;
 border-radius: 50%;
 border: 1px solid var(--line);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 color: var(--blue);
 flex: none;
 font-weight: 700;
}
.faq-item[open] summary::after { content: "–"; background: var(--lilac-bg); color: var(--lilac); border-color: var(--lilac); }
.faq-item p { padding: 0 18px 16px; }
.extend-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 20px;
 padding: 28px;
}
.extend-bar h2 { font-size: 28px; line-height: 1.35; }
.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 10px 22px;
 border-radius: 999px;
 border: 1px solid transparent;
 background: var(--blue);
 color: #fff;
 font-weight: 700;
 text-decoration: none;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
 appearance: none;
 -webkit-appearance: none;
}
.btn:hover { background: var(--blue-press); color: #fff; text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn:active { transform: translateY(0); background: var(--blue-press); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-secondary:hover { background: var(--lilac-bg); color: var(--blue-press); }
.text-more { font-weight: 700; min-height: 44px; display: inline-flex; align-items: center; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding-top: 48px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr 1.1fr; gap: 28px; }
.footer-title { font-weight: 700; color: var(--text); margin-bottom: 8px; }
.footer-links { list-style: none; padding: 0; }
.footer-links a { display: inline-flex; align-items: center; min-height: 36px; color: var(--blue); }
.footer-bottom { margin-top: 28px; border-top: 1px solid var(--line); }
.footer-bottom .container { min-height: 64px; display: flex; align-items: center; color: var(--muted); }
@media (max-width: 1200px) {
 .container { width: min(1120px, calc(100% - 32px)); }
 .boundary-grid { grid-template-columns: 1.2fr 1fr; }
}
@media (max-width: 992px) {
 :root { --pad: 64px; --header-offset: 188px; }
 .span-8, .span-4 { grid-column: 1 / -1; }
 .legend-list, .boundary-grid, .footer-grid { grid-template-columns: 1fr 1fr; }
 .timeline { flex-direction: column; overflow: visible; }
 .tl-item { min-width: 0; padding: 0 0 28px 32px; }
 .tl-item::before { top: 0; bottom: 0; left: 6px; right: auto; width: 2px; height: auto; }
 .tl-item::after { top: 4px; left: 0; }
 .h-a, .h-b, .h-c { min-height: 0; }
}
@media (max-width: 768px) {
 .header-bar { flex-wrap: wrap; align-items: flex-start; padding: 10px 0; }
 .header-tools { width: 100%; flex-wrap: wrap; }
 .main-nav, .step-nav ol { max-width: 100%; overflow-x: auto; }
 .cat-head h1 { font-size: 32px; }
 .section-head h2, .extend-bar h2 { font-size: 24px; }
 .extend-bar { flex-direction: column; align-items: flex-start; }
 .news-list li { grid-template-columns: 88px minmax(0, 1fr); }
 .news-list .status-dot { display: none; }
}
@media (max-width: 520px) {
 :root { --pad: 48px; --header-offset: 210px; }
 .legend-list, .boundary-grid, .footer-grid, .news-list li { grid-template-columns: 1fr; }
 .logo-text { font-size: 16px; }
 .cat-head h1 { font-size: 28px; }
 .container { width: calc(100% - 28px); }
 .scene-card, .bound, .extend-bar { padding: 18px; }
}
@media (max-width: 480px) {
 .badge { min-height: 44px; }
}