/* roulang page: index */
:root {
  --wine: #7C2F3B;
  --wine-deep: #5C2230;
  --copper: #C4844A;
  --copper-deep: #A56A34;
  --ink: #3A2A24;
  --ink-soft: #6E5B52;
  --paper: #F6F0E6;
  --apricot: #F3E4D4;
  --warm-gray: #E9E1D6;
  --line: #DDD2C4;
  --card: #FBF7F1;
  --dark: #2A1816;
  --dark-2: #241614;
  --rose: #A65D68;
  --radius: 8px;
  --shadow: 0 8px 18px rgba(58, 42, 36, 0.08);
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --space: 4.75rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink);
  background: var(--paper);
}
img, svg { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 {
  font-family: var(--serif);
  line-height: 1.35;
  font-weight: 700;
}
h1 { font-size: clamp(1.85rem, 4vw, 3.05rem); margin: 0 0 .6rem; color: var(--wine-deep); }
h2 { font-size: clamp(1.45rem, 2.5vw, 2rem); margin: 0 0 .75rem; color: var(--wine-deep); }
h3 { font-size: 1.12rem; margin: 0 0 .4rem; color: var(--wine-deep); }
p { margin: 0 0 1.15em; }
a { color: var(--wine); text-underline-offset: 3px; }
a:hover { color: var(--copper-deep); }
::selection { background: #E7C7A4; color: var(--dark); }
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--card);
  color: var(--wine);
  padding: .4rem .8rem;
  border-radius: var(--radius);
  z-index: 80;
}
.skip:focus { top: .6rem; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  padding: .85rem 0 .45rem;
}
.nav-panel {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--dark);
  color: #F8F1E8;
  border-radius: var(--radius);
  padding: .7rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  margin-right: auto;
  min-height: 44px;
}
.brand:hover { color: inherit; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--wine);
  position: relative;
  flex: 0 0 auto;
}
.brand-mark::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 13px;
  border-style: solid;
  border-width: 8px 0 8px 12px;
  border-color: transparent transparent transparent var(--copper);
}
.brand-text { display: flex; flex-direction: column; gap: .1rem; }
.brand-name {
  font-family: var(--serif);
  color: #F8F1E8;
  font-size: 1.16rem;
  line-height: 1.25;
}
.brand-tag {
  align-self: flex-start;
  color: #F6E2C8;
  border: 1px solid rgba(196, 132, 74, .65);
  border-radius: var(--radius);
  padding: 0 .45rem;
  font-size: .72rem;
  line-height: 1.6;
}
.nav-cards { display: flex; gap: .45rem; flex-wrap: wrap; }
.nav-card {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  min-height: 44px;
  padding: .45rem .75rem;
  background: #F7F1E8;
  color: var(--ink);
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  font-size: .95rem;
  transition: transform .2s ease, border-color .2s ease, color .2s ease;
}
.nav-card i { color: var(--copper-deep); font-size: 1rem; }
.nav-card:hover { color: var(--wine); transform: translateY(-2px); }
.nav-card:active { transform: translateY(0); background: var(--apricot); }
.nav-card.active {
  border-color: var(--wine);
  color: var(--wine);
  background: #fff;
  font-weight: 700;
}
.nav-card.active i { color: var(--wine); }
.btn-copper, .btn-line, .more-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .55rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.2;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-copper {
  background: var(--copper);
  color: var(--dark);
}
.btn-copper:hover { background: #D39658; color: var(--dark); transform: translateY(-2px); }
.btn-copper:active { background: var(--copper-deep); color: var(--dark); transform: translateY(1px); }
.btn-line, .more-link {
  background: transparent;
  color: var(--wine);
  border-color: var(--wine);
}
.btn-line:hover, .more-link:hover {
  color: var(--copper-deep);
  border-color: var(--copper);
  background: rgba(196, 132, 74, .1);
  transform: translateY(-2px);
}
.btn-line:active, .more-link:active { transform: translateY(1px); background: var(--apricot); }
.nav-cta { white-space: nowrap; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}
.hero { padding: 1.6rem 0 3.2rem; background: var(--paper); }
.narrow { max-width: 40rem; }
.kicker {
  display: inline-flex;
  align-items: center;
  margin: 0 0 .8rem;
  padding: .15rem .6rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--apricot);
  color: var(--wine-deep);
  font-size: .86rem;
}
.rule {
  width: 3rem;
  height: 2px;
  border: 0;
  background: var(--copper);
  margin: .2rem 0 1rem;
}
.hero-pain {
  font-family: var(--serif);
  color: var(--wine);
  font-size: 1.16rem;
  line-height: 1.7;
  margin: 0 0 .9rem;
}
.hero-lead { color: var(--ink); margin-bottom: 0; }
.demo-stage {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .9rem;
}
.frame {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .7rem;
}
.frame-visual {
  height: 148px;
  border-radius: var(--radius);
  position: relative;
  background:
    radial-gradient(circle at 28% 38%, rgba(196, 132, 74, .55), transparent 42%),
    radial-gradient(circle at 72% 64%, rgba(124, 47, 59, .38), transparent 46%),
    linear-gradient(165deg, #3A2422, #6B4038 58%, #2A1816);
}
.frame:nth-child(2) .frame-visual {
  background:
    radial-gradient(circle at 62% 32%, rgba(196, 132, 74, .5), transparent 40%),
    radial-gradient(circle at 30% 70%, rgba(166, 93, 104, .4), transparent 48%),
    linear-gradient(200deg, #2C1C1A, #5A3834 60%, #1E1412);
}
.frame:nth-child(3) .frame-visual {
  background:
    radial-gradient(circle at 48% 46%, rgba(232, 196, 150, .45), transparent 36%),
    radial-gradient(circle at 78% 30%, rgba(124, 47, 59, .45), transparent 42%),
    linear-gradient(145deg, #4A2C2A, #2A1816 70%);
}
.play-dot {
  position: absolute;
  left: .8rem;
  bottom: .8rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--copper);
}
.play-dot::before {
  content: "";
  position: absolute;
  left: .78rem;
  top: .55rem;
  border-style: solid;
  border-width: 6px 0 6px 9px;
  border-color: transparent transparent transparent var(--dark);
}
.frame-index {
  position: absolute;
  right: .7rem;
  top: .55rem;
  color: #F6E2C8;
  font-family: var(--serif);
  font-size: .85rem;
}
.frame-cap { margin: .7rem .15rem .2rem; color: var(--ink-soft); font-size: .92rem; }
.frame-cap strong { display: block; color: var(--wine-deep); font-family: var(--serif); font-size: 1.02rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.15rem; }
.section { padding: var(--space) 0; }
.section-paper { background: var(--paper); }
.section-gray { background: var(--warm-gray); }
.section-apricot { background: var(--apricot); }
.section-head { max-width: 40rem; margin-bottom: 1.5rem; }
.section-lead { margin-bottom: 0; }
.solution-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 1.15rem;
  align-items: stretch;
}
.overview-card, .note-card, .step-card, .voice-card, .people-card, .guide-note, .editor-note, .feed-item, .topic-card, .scene-bar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.overview-card {
  border-left: 3px solid var(--wine);
  padding: 1.35rem 1.35rem 1.15rem;
  height: 100%;
}
.overview-card:hover, .note-card:hover, .step-card:hover, .voice-card:hover, .people-card:hover, .guide-note:hover, .feed-item:hover, .topic-card:hover, .scene-bar:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.chip-row { display: flex; flex-wrap: wrap; gap: .45rem; list-style: none; margin-top: 1rem; }
.badge-soft {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: .1rem .55rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #F8EFE4;
  color: var(--wine);
  font-size: .82rem;
}
.side-notes { display: grid; gap: .75rem; }
.note-card { padding: 1rem 1.05rem; }
.note-card h3 { display: flex; align-items: center; gap: .4rem; }
.note-no {
  font-family: var(--serif);
  color: var(--copper-deep);
  font-size: .95rem;
}
.timeline { display: grid; gap: .85rem; }
.step-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.05rem 1.15rem;
  align-items: start;
}
.step-no {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  background: var(--wine);
  color: #F8E7D2;
  font-family: var(--serif);
  font-weight: 700;
}
.step-card p { margin: 0; color: var(--ink); }
.scene-list {
  display: grid;
  grid-template-columns: 1.45fr 1fr .82fr;
  gap: .85rem;
}
.scene-bar {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1.15rem 1.1rem 1rem;
  text-decoration: none;
  color: inherit;
}
.scene-bar:hover { color: inherit; border-color: var(--copper); }
.scene-bar h3 { margin-bottom: .45rem; }
.scene-bar p { flex: 1; color: var(--ink); font-size: .98rem; }
.scene-go { color: var(--wine); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.scene-wide { background: #F8F1E6; }
.scene-mid { background: #FBF7F1; }
.scene-slim { background: #F3E6D8; }
.topic-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  grid-template-rows: auto auto;
  gap: .85rem;
}
.topic-card {
  display: block;
  padding: 1.15rem 1.15rem 1rem;
  text-decoration: none;
  color: inherit;
}
.topic-card.main { grid-row: span 2; background: #F8F1E6; }
.topic-card:hover { color: inherit; border-color: var(--wine); }
.topic-card:active { transform: translateY(0); background: #F3E4D4; }
.topic-kicker { color: var(--copper-deep); font-size: .82rem; margin: 0 0 .35rem; }
.metric-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}
.metric { padding: 1.2rem 1rem 1.05rem; }
.metric + .metric { border-left: 1px solid var(--line); }
.metric-num {
  font-family: var(--serif);
  color: var(--copper-deep);
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  line-height: 1;
  margin: 0 0 .45rem;
}
.metric-label { font-weight: 700; margin: 0 0 .3rem; color: var(--wine-deep); }
.metric-note { margin: 0; color: var(--ink-soft); font-size: .92rem; }
.voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1.1rem; }
.voice-card { padding: 1.15rem 1.15rem 1rem; }
.voice-card.shift { margin-top: 1.4rem; }
.voice-card q {
  font-family: var(--serif);
  display: block;
  line-height: 1.8;
  margin-bottom: .8rem;
}
.voice-card q::before, .voice-card q::after { content: ""; }
.voice-meta { margin: 0; color: var(--ink-soft); font-size: .92rem; }
.voice-meta b { color: var(--wine); font-weight: 700; }
.people-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .85rem;
}
.people-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .75rem;
  padding: 1rem 1.05rem;
  align-items: start;
}
.people-card::before {
  content: "";
  width: .72rem;
  height: .72rem;
  margin-top: .55rem;
  border-radius: 50%;
  background: var(--copper);
}
.people-card h3 { margin-bottom: .25rem; }
.people-card p { margin: 0; }
.feed-list { display: grid; gap: .85rem; }
.feed-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1rem;
  padding: .8rem;
  align-items: center;
}
.feed-thumb {
  height: 124px;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 35% 40%, rgba(196, 132, 74, .5), transparent 45%),
    linear-gradient(160deg, #3A2422, #6A4038 55%, #2A1816);
}
.tone-b {
  background:
    radial-gradient(circle at 70% 35%, rgba(232, 196, 150, .45), transparent 40%),
    linear-gradient(180deg, #4A2E2C, #2A1816);
}
.tone-c {
  background:
    radial-gradient(circle at 40% 70%, rgba(124, 47, 59, .45), transparent 46%),
    linear-gradient(145deg, #2C1C1A, #5C3A36);
}
.tone-d {
  background:
    radial-gradient(circle at 50% 40%, rgba(196, 132, 74, .42), transparent 42%),
    linear-gradient(200deg, #3E2926, #241614);
}
.byline { margin: 0 0 .25rem; color: var(--copper-deep); font-size: .86rem; }
.feed-body h3 { margin-bottom: .3rem; }
.feed-body h3 a { color: var(--wine-deep); text-decoration: underline; text-underline-offset: 3px; }
.feed-body h3 a:hover { color: var(--copper-deep); }
.feed-body p { margin: 0; color: var(--ink); }
.more-row { margin: 1rem 0 0; }
.scale-list { display: grid; gap: .95rem; }
.scale-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: .8rem;
  align-items: center;
  background: rgba(251, 247, 241, .72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .85rem 1rem;
}
.scale-name { font-weight: 700; color: var(--wine-deep); }
.scale-track { height: 10px; background: #E4D8C8; border-radius: var(--radius); overflow: hidden; }
.scale-fill { display: block; height: 100%; background: var(--copper); border-radius: var(--radius); }
.fill-mid { width: 68%; background: #B8743E; }
.fill-short { width: 42%; }
.fill-long { width: 92%; background: var(--wine); }
.scale-val { font-family: var(--serif); color: var(--copper-deep); white-space: nowrap; }
.scale-extra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .85rem;
  margin-top: .95rem;
}
.scale-extra p {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .9rem 1rem;
}
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.guide-note { padding: 1.2rem 1.15rem 1.05rem; }
.guide-note.left { border-top: 3px solid var(--wine); }
.guide-note.right { border-top: 3px solid var(--copper); }
.editor-note {
  max-width: 40rem;
  padding: 1.4rem 1.35rem 1.15rem;
  border-left: 3px solid var(--copper);
}
.sign-line { margin: 1rem 0 0; color: var(--ink-soft); }
.sign-line b { color: var(--wine); }
.faq-acc .accordion-item {
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  overflow: hidden;
  margin-bottom: .75rem;
  background: var(--card);
}
.faq-acc .accordion-button {
  background: var(--card);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.5;
  min-height: 52px;
  box-shadow: none;
}
.faq-acc .accordion-button:not(.collapsed) {
  background: #F3E4D4;
  color: var(--wine);
  box-shadow: none;
}
.faq-acc .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(196, 132, 74, .35);
  border-color: var(--copper);
}
.faq-acc .accordion-body {
  line-height: 1.8;
  color: var(--ink);
  background: #FBF7F1;
  padding: 1rem 1.15rem 1.15rem;
}
.close-band { background: var(--dark); color: #F6F0E6; padding: 4.4rem 0; }
.close-band h2 { color: #F8F1E8; }
.close-band p { color: #E7D9CC; max-width: 40rem; }
.close-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: .4rem; }
.close-band .btn-line { color: #F6E7D6; border-color: #E4C7A4; }
.close-band .btn-line:hover { color: var(--dark); background: var(--copper); border-color: var(--copper); }
.site-footer {
  background: var(--dark-2);
  color: #E7D9CC;
  padding: 2.2rem 0 2rem;
  border-top: 1px solid rgba(196, 132, 74, .35);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .9fr 1fr;
  gap: 1.2rem;
  align-items: start;
}
.footer-brand {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: #F8F1E8;
  margin: 0 0 .3rem;
}
.footer-tag { margin: 0; color: #CDB8A8; }
.footer-links { display: flex; flex-wrap: wrap; gap: .45rem .9rem; }
.footer-links a { color: #F6E7D6; text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
.footer-links a:hover { color: var(--copper); }
.copy { margin: 0; color: #CDB8A8; }
.copy small { display: block; margin-top: .35rem; }
.note-card p:last-child,
.overview-card p:last-child,
.guide-note p:last-child,
.editor-note p:last-child { margin-bottom: 0; }
@media (max-width: 1024px) {
  :root { --space: 3.6rem; }
  h1 { font-size: 2.15rem; }
  .solution-grid { grid-template-columns: 1fr; }
  .scene-list { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
  .topic-card.main { grid-row: auto; grid-column: span 2; }
}
@media (max-width: 768px) {
  :root { --space: 3rem; }
  .nav-panel { display: grid; grid-template-columns: 1fr; }
  .brand { margin-right: 0; }
  .nav-cards { display: grid; grid-template-columns: 1fr 1fr; }
  .nav-cta { width: 100%; }
  .demo-stage, .voice-grid, .guide-grid, .people-grid, .scale-extra, .footer-grid { grid-template-columns: 1fr; }
  .voice-card.shift { margin-top: 0; }
  .metric-bar { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(odd) { border-left: 0; }
  .metric:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .feed-item { grid-template-columns: 1fr; }
  .feed-thumb { height: 160px; }
  .topic-card.main { grid-column: auto; }
  .topic-grid { grid-template-columns: 1fr; }
  .scale-row { grid-template-columns: 1fr; gap: .35rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 1rem; }
  h1 { font-size: 1.72rem; }
  .nav-cards { grid-template-columns: 1fr 1fr; }
  .metric-bar { grid-template-columns: 1fr; }
  .metric + .metric { border-left: 0; border-top: 1px solid var(--line); }
  .hero-actions, .close-actions { display: grid; }
  .hero-actions a, .close-actions a, .more-link { width: 100%; }
  .step-card { grid-template-columns: 1fr; }
  .frame-visual { height: 132px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --wine: #7C2F3B;
  --wine-deep: #5C2230;
  --copper: #C4844A;
  --copper-deep: #A56A34;
  --ink: #3A2A24;
  --ink-soft: #6E5B52;
  --paper: #F6F0E6;
  --apricot: #F3E4D4;
  --warm-gray: #E9E1D6;
  --line: #DDD2C4;
  --card: #FBF7F1;
  --dark: #2A1816;
  --dark-2: #241614;
  --rose: #A65D68;
  --radius: 8px;
  --shadow: 0 8px 18px rgba(58, 42, 36, 0.08);
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --space: 4.75rem;
  --bs-body-color: #3A2A24;
  --bs-body-bg: #F6F0E6;
  --bs-link-color: #7C2F3B;
  --bs-link-hover-color: #A56A34;
  --bs-primary: #C4844A;
  --bs-border-radius: 8px;
}
/* roulang page: category1 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink);
  background: var(--paper);
}
img, svg { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--wine); text-underline-offset: 3px; }
a:hover { color: var(--copper-deep); }
p { margin: 0 0 1rem; }
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--wine-deep);
  line-height: 1.4;
  letter-spacing: 0.01em;
}
h1 { font-size: 2.15rem; margin: 0 0 .7rem; }
h2 { font-size: 1.55rem; margin: 0 0 .75rem; }
h3 { font-size: 1.16rem; margin: 0 0 .45rem; }
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  padding: .85rem 0 .45rem;
}
.nav-panel {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--dark);
  color: #F8F1E8;
  border-radius: var(--radius);
  padding: .7rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
  min-height: 44px;
}
.brand:hover { color: inherit; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--wine);
  position: relative;
  flex: 0 0 auto;
}
.brand-mark::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 13px;
  border-style: solid;
  border-width: 8px 0 8px 12px;
  border-color: transparent transparent transparent var(--copper);
}
.brand-text { display: flex; flex-direction: column; gap: .1rem; }
.brand-name {
  font-family: var(--serif);
  color: #F8F1E8;
  font-size: 1.16rem;
  line-height: 1.25;
}
.brand-tag {
  align-self: flex-start;
  color: #F6E2C8;
  border: 1px solid rgba(196, 132, 74, .65);
  border-radius: var(--radius);
  padding: 0 .45rem;
  font-size: .72rem;
  line-height: 1.6;
}
.nav-cards { display: flex; gap: .45rem; flex-wrap: wrap; }
.nav-card {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  min-height: 44px;
  padding: .45rem .75rem;
  background: #F7F1E8;
  color: var(--ink);
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  font-size: .95rem;
  transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease;
}
.nav-card i { color: var(--copper-deep); font-size: 1rem; }
.nav-card:hover { color: var(--wine); transform: translateY(-2px); }
.nav-card:active { transform: translateY(0); background: var(--apricot); }
.nav-card.active {
  border-color: var(--wine);
  color: var(--wine);
  background: #fff;
  font-weight: 700;
}
.nav-card.active i { color: var(--wine); }
.btn-copper, .btn-line, .more-link, .chip-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .55rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.2;
  cursor: pointer;
  background: transparent;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn-copper { background: var(--copper); color: var(--dark); }
.btn-copper:hover { background: #D39658; color: var(--dark); transform: translateY(-2px); }
.btn-copper:active { background: var(--copper-deep); color: var(--dark); transform: translateY(1px); }
.btn-line, .more-link {
  background: transparent;
  color: var(--wine);
  border-color: var(--wine);
}
.btn-line:hover, .more-link:hover {
  color: var(--copper-deep);
  border-color: var(--copper);
  background: rgba(196, 132, 74, .1);
  transform: translateY(-2px);
}
.btn-line:active, .more-link:active { transform: translateY(1px); background: var(--apricot); }
.nav-cta { white-space: nowrap; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}
.section { padding: var(--space) 0; }
.section-paper { background: var(--paper); }
.section-gray { background: var(--warm-gray); }
.section-apricot { background: var(--apricot); }
.cat-section { padding: 1.35rem 0 2.2rem; background: var(--paper); }
.section-head { max-width: 40rem; margin-bottom: 1.35rem; }
.section-lead { margin-bottom: 0; color: var(--ink); }
.kicker {
  margin: 0 0 .45rem;
  color: var(--copper-deep);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.lead-copy { max-width: 40rem; color: var(--ink); margin-bottom: 0; }
.adult-line { margin: .85rem 0 0; color: var(--ink-soft); font-size: .95rem; }
.stat-card, .editor-note, .entry, .tip, .step-mini, .related-list, .accordion-item, .return-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.stat-card {
  padding: 1.1rem 1.15rem 1rem;
  border-top: 3px solid var(--wine);
}
.stat-num {
  margin: .55rem 0 .1rem;
  font-family: var(--serif);
  font-size: 2.6rem;
  line-height: 1.1;
  color: var(--copper-deep);
}
.stat-label { margin: 0; font-weight: 700; }
.stat-sub { margin: .35rem 0 0; color: var(--ink-soft); }
.badge-soft {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: .1rem .55rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #F8EFE4;
  color: var(--wine);
  font-size: .82rem;
  font-weight: 700;
}
.filter-bar { display: grid; gap: .9rem; }
.filter-row { display: flex; flex-wrap: wrap; gap: .55rem; align-items: center; }
.filter-label {
  min-width: 4.5rem;
  color: var(--ink-soft);
  font-size: .92rem;
}
.chip-btn {
  min-height: 42px;
  padding: .4rem .9rem;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  font-weight: 500;
}
.chip-btn:hover { border-color: var(--copper); color: var(--wine); transform: translateY(-2px); }
.chip-btn:active { transform: translateY(1px); background: var(--apricot); }
.chip-btn.is-on {
  background: var(--wine);
  color: #FBF7F1;
  border-color: var(--wine);
  font-weight: 700;
}
.chip-btn.is-on:hover { color: #fff; background: var(--wine-deep); }
.entry-list { display: grid; gap: .85rem; }
.entry {
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.entry:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: #d3b89a; }
.entry.is-hidden { display: none; }
.entry-link {
  display: grid;
  grid-template-columns: 196px 1fr;
  gap: 0;
  color: inherit;
  text-decoration: none;
  min-height: 100%;
}
.entry-link:hover { color: inherit; }
.thumb {
  position: relative;
  min-height: 148px;
  background: #E4D8C8;
  border-right: 1px solid var(--line);
}
.thumb::after {
  content: "";
  position: absolute;
  left: 18px;
  bottom: 16px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 13px;
  border-color: transparent transparent transparent var(--copper);
  filter: drop-shadow(0 1px 0 rgba(42, 24, 22, .25));
}
.thumb-a { background: radial-gradient(circle at 30% 40%, #E7C7A4 0, #C4844A 28%, transparent 29%), linear-gradient(145deg, #5C2230 0%, #2A1816 70%); }
.thumb-b { background: radial-gradient(circle at 70% 30%, rgba(196,132,74,.85) 0 16%, transparent 17%), linear-gradient(160deg, #7C2F3B, #3A2A24 68%); }
.thumb-c { background: linear-gradient(120deg, #E9E1D6 0 38%, #7C2F3B 38% 42%, #2A1816 42%); }
.thumb-d { background: radial-gradient(circle at 50% 80%, #C4844A 0 18%, transparent 19%), linear-gradient(#241614, #5C2230); }
.thumb-e { background: linear-gradient(200deg, #F3E4D4, #A56A34 46%, #5C2230); }
.thumb-f { background: repeating-linear-gradient(135deg, #2A1816 0 12px, #3A2A24 12px 18px); }
.thumb-g { background: radial-gradient(circle at 20% 20%, #F6E2C8 0 10%, transparent 11%), linear-gradient(90deg, #7C2F3B, #241614); }
.thumb-h { background: linear-gradient(160deg, #C4844A, #5C2230 55%, #241614); }
.entry-body { padding: 1rem 1.1rem 1.05rem; }
.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem .7rem;
  align-items: center;
  margin-bottom: .4rem;
  color: var(--ink-soft);
  font-size: .88rem;
}
.entry-body h2 { font-size: 1.28rem; margin-bottom: .35rem; }
.entry-link:hover h2 { color: var(--wine); }
.entry-body p { margin: 0; color: var(--ink); }
.mins { color: var(--copper-deep); font-weight: 700; }
.list-tools { margin-top: 1rem; display: flex; justify-content: flex-start; }
.editor-note {
  padding: 1.15rem 1.15rem 1.05rem;
  border-left: 3px solid var(--copper);
  position: sticky;
  top: 6.2rem;
}
.editor-note p:last-child { margin-bottom: 0; }
.sign { color: var(--ink-soft); font-size: .92rem; }
.narrow { max-width: 40rem; }
.tip-list { display: grid; gap: .8rem; }
.tip {
  padding: 1rem 1.1rem .95rem;
  transition: transform .2s ease, box-shadow .2s ease;
}
.tip:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.tip a { font-family: var(--serif); font-weight: 700; font-size: 1.08rem; }
.tip p { margin: .4rem 0 0; }
.step-mini {
  height: 100%;
  padding: 1rem 1rem .9rem;
  background: var(--card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.step-mini:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius);
  background: var(--wine);
  color: #FBF7F1;
  font-family: var(--serif);
  margin-bottom: .55rem;
}
.step-mini p { margin: 0; color: var(--ink-soft); }
.related-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.related-list li { border-top: 1px solid var(--line); }
.related-list li:first-child { border-top: 0; }
.related-list a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .95rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
}
.related-list a:hover { color: var(--wine); background: #F8EFE4; }
.related-list span { color: var(--copper-deep); font-weight: 700; white-space: nowrap; }
.accordion { --bs-accordion-border-color: var(--line); --bs-accordion-btn-focus-box-shadow: 0 0 0 .2rem rgba(196,132,74,.35); --bs-accordion-active-color: var(--wine-deep); --bs-accordion-active-bg: #F8EFE4; }
.accordion-item { overflow: hidden; margin-bottom: .7rem; }
.accordion-button {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--wine-deep);
  background: var(--card);
  box-shadow: none;
  min-height: 54px;
  line-height: 1.6;
}
.accordion-button:not(.collapsed) { color: var(--wine); background: #F8EFE4; box-shadow: none; }
.accordion-button:focus { box-shadow: 0 0 0 .2rem rgba(196, 132, 74, .35); border-color: var(--copper); }
.accordion-button::after { filter: sepia(1) hue-rotate(-20deg) saturate(2); }
.accordion-body { line-height: 1.8; padding: 1rem 1.15rem 1.15rem; background: var(--card); }
.return-sec { background: var(--dark); color: #F6EDE4; }
.return-panel {
  background: var(--dark-2);
  border-color: rgba(221, 210, 196, .25);
  padding: 1.4rem 1.35rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.return-panel h2 { color: #F8F1E8; margin: 0 0 .35rem; }
.return-panel p { margin: 0; color: #E4D5C8; }
.return-actions { display: flex; flex-wrap: wrap; gap: .65rem; }
.return-sec .btn-line { color: #F6E2C8; border-color: var(--copper); }
.return-sec .btn-line:hover { color: var(--dark); background: var(--copper); }
.site-footer { background: var(--dark); color: #F6EDE4; padding: 2.4rem 0 2rem; border-top: 1px solid rgba(221, 210, 196, .12); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.4fr; gap: 1.25rem; align-items: start; }
.footer-brand { font-family: var(--serif); font-size: 1.25rem; margin: 0 0 .35rem; color: #F8F1E8; }
.footer-tag { margin: 0; color: #E4D5C8; }
.footer-links { display: flex; flex-wrap: wrap; gap: .55rem 1rem; }
.footer-links a { color: #F6EDE4; text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
.footer-links a:hover { color: var(--copper); }
.copy { margin: 0; color: #E4D5C8; }
.copy small { display: block; color: #CDBEB2; }
.empty-note { display: none; margin: .8rem 0 0; color: var(--ink-soft); }
.empty-note.show { display: block; }
@media (max-width: 1024px) {
  h1 { font-size: 1.9rem; }
  .entry-link { grid-template-columns: 168px 1fr; }
  .editor-note { position: static; }
}
@media (max-width: 768px) {
  :root { --space: 3.2rem; }
  .nav-panel { flex-wrap: wrap; }
  .brand { width: 100%; }
  .nav-cards { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .nav-card { justify-content: center; }
  .nav-cta { width: 100%; }
  .entry-link { grid-template-columns: 1fr; }
  .thumb { min-height: 132px; border-right: 0; border-bottom: 1px solid var(--line); }
  .return-panel { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .related-list a { flex-direction: column; gap: .15rem; }
}
@media (max-width: 520px) {
  body { font-size: 1rem; }
  h1 { font-size: 1.62rem; }
  h2 { font-size: 1.32rem; }
  .container { padding: 0 1rem; }
  .nav-cards { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 2.2rem; }
  .filter-label { width: 100%; }
  .chip-btn, .btn-copper, .btn-line, .more-link { width: 100%; }
  .return-actions { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { 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}