/* roulang page: index */
:root {
  --bg: #F4F7FB;
  --card: #FFFFFF;
  --ink: #1C2B3A;
  --muted: #5C6B7A;
  --primary: #1F4E79;
  --primary-hover: #163A5C;
  --accent: #C46B4A;
  --line: #E3EAF2;
  --soft: #E7EEF6;
  --shadow: 0 10px 28px rgba(31, 78, 121, 0.08);
  --shadow-hover: 0 18px 36px rgba(31, 78, 121, 0.16);
  --radius: 16px;
  --radius-btn: 12px;
  --nav-h: 76px;
  --font: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  padding-top: var(--nav-h);
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(31, 78, 121, 0.35);
  outline-offset: 2px;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.25; font-weight: 700; letter-spacing: -0.02em; }
p { margin-bottom: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1040;
  background: #fff;
  border-bottom: 1px solid var(--line);
  height: var(--nav-h);
}
.site-nav { background: #fff; min-height: var(--nav-h); padding: 0; }
.nav-inner { min-height: var(--nav-h); display: flex; align-items: center; gap: 12px; }
.brand { display: flex; flex-direction: column; justify-content: center; min-height: 44px; flex: 0 0 auto; }
.logo-main { font-size: 18px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.logo-sub { font-size: 12px; color: var(--accent); letter-spacing: 0.08em; line-height: 1.2; margin-top: 2px; }
.nav-cluster { display: flex; align-items: center; flex: 1; }
.nav-links { display: flex; align-items: center; gap: 6px; margin: 0 18px; padding: 0; }
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--ink);
  font-size: 15px;
}
.nav-links a:hover { background: var(--soft); color: var(--primary); }
.nav-links a.active { background: var(--soft); color: var(--primary); font-weight: 700; }
.nav-cta { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.btn {
  --bs-btn-bg: transparent;
  --bs-btn-border-color: transparent;
  --bs-btn-color: var(--ink);
  --bs-btn-hover-bg: transparent;
  --bs-btn-hover-border-color: transparent;
  --bs-btn-hover-color: var(--ink);
  --bs-btn-active-bg: transparent;
  --bs-btn-active-border-color: transparent;
  --bs-btn-active-color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  box-shadow: none;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-main {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-main:hover, .btn-main:focus, .btn-main:active {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
}
.btn-ghost {
  background: #fff;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-ghost:hover, .btn-ghost:focus, .btn-ghost:active {
  background: #fff7f4;
  color: var(--accent);
  border-color: var(--accent);
}
.nav-toggler {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}
.nav-toggler span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.block { padding: 80px 0; }
.block-white { background: var(--card); }
.block-base { background: var(--bg); }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.section-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.section-title { font-size: 32px; margin-bottom: 14px; max-width: 760px; }
.section-lead { color: var(--muted); max-width: 760px; margin-bottom: 28px; }
.age-pill, .tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}
.age-pill { background: #fff; color: var(--accent); border: 1px solid rgba(196, 107, 74, 0.35); margin-bottom: 16px; }
.tag { background: var(--soft); color: var(--primary); }
.tag-accent { background: #f8efe9; color: var(--accent); }
.hero { padding: 64px 0 72px; background: var(--bg); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 48px; align-items: center; }
.hero-title { font-size: 46px; margin-bottom: 14px; }
.hero-sub { font-size: 20px; color: var(--primary); font-weight: 700; margin-bottom: 14px; }
.hero-lead { color: var(--muted); margin-bottom: 26px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-stage { position: relative; height: 460px; }
.poster {
  position: absolute;
  width: 230px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--line);
}
.poster-a { left: 18px; top: 36px; transform: rotate(-6deg); z-index: 1; }
.poster-b { left: 150px; top: 0; z-index: 3; width: 250px; }
.poster-c { right: 0; top: 92px; transform: rotate(5deg); z-index: 2; }
.poster-face { height: 280px; position: relative; display: flex; align-items: center; justify-content: center; }
.face-a { background: #d7e4f1; }
.face-b { background: #e7eef6; height: 320px; }
.face-c { background: #f3e7e1; }
.poster-mask {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 86px;
  background: rgba(255, 255, 255, 0.82);
}
.play {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow);
}
.play::before {
  content: "";
  border-style: solid;
  border-width: 8px 0 8px 13px;
  border-color: transparent transparent transparent var(--primary);
  margin-left: 3px;
}
.poster-meta { padding: 14px 14px 16px; }
.poster-meta h3 { font-size: 16px; margin-bottom: 8px; }
.meta-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.pain-grid { display: grid; grid-template-columns: 1.15fr 0.9fr 1.3fr 1fr; gap: 16px; }
.pain-card, .solution-item, .step, .rail-card, .quote, .scene, .news-feature, .news-item, .dir-row, .quality-col, .people-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.pain-card { padding: 22px 20px 20px; min-height: 220px; transition: transform .2s ease, box-shadow .2s ease; }
.pain-card:hover, .rail-card:hover, .quote:hover, .scene:hover, .news-feature:hover, .news-item:hover, .dir-row:hover, .people-item:hover, .solution-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.pain-index { font-size: 28px; color: var(--primary); font-weight: 700; line-height: 1; margin-bottom: 18px; }
.pain-card h3, .solution-item h3, .scene h3, .news-feature h3, .news-item h3, .dir-row h3 { font-size: 18px; margin-bottom: 8px; }
.pain-card p, .solution-item p, .scene p, .news-feature p, .news-item p, .quote p, .people-item p, .dir-row p { color: var(--muted); font-size: 15px; }
.solution-grid, .quality-grid, .news-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 28px; align-items: stretch; }
.solution-side, .quality-col { padding: 28px; }
.solution-side h2, .quality-col h3 { margin-bottom: 12px; }
.solution-list { display: flex; flex-direction: column; gap: 14px; }
.solution-item { padding: 18px 20px; display: grid; grid-template-columns: 52px 1fr; gap: 12px; align-items: start; }
.solution-item b { font-size: 22px; color: var(--primary); line-height: 1.2; }
.step-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step { padding: 22px 18px 20px; min-height: 210px; }
.step-num { font-size: 42px; line-height: 1; color: var(--primary); font-weight: 700; margin-bottom: 16px; }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15px; }
.rail-wrap { position: relative; }
.rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 2px 16px;
  scrollbar-color: #c5d3e2 transparent;
}
.rail-card { flex: 0 0 220px; scroll-snap-align: start; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.rail-poster { height: 250px; display: flex; align-items: center; justify-content: center; position: relative; }
.tone-1 { background: #d5e3f2; }
.tone-2 { background: #e5eef7; }
.tone-3 { background: #f4e8e2; }
.tone-4 { background: #dfe8dc; }
.tone-5 { background: #e7e4f2; }
.tone-6 { background: #f7f1e4; }
.rail-body { padding: 14px; }
.rail-body h3 { font-size: 16px; margin: 8px 0; }
.rail-body span { color: var(--muted); font-size: 13px; }
.status-list { display: flex; flex-direction: column; gap: 18px; margin-top: 22px; }
.status-line { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.status-line strong { font-size: 18px; }
.status-line span { color: var(--muted); }
.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #e9f0f7;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}
.stat { padding: 28px 22px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat b { display: block; font-size: 40px; line-height: 1.1; color: var(--primary); letter-spacing: -0.03em; }
.stat span { display: block; color: var(--muted); margin-top: 8px; }
.quote-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
.quote { padding: 28px 32px; }
.quote p { font-size: 18px; color: var(--ink); line-height: 1.7; }
.quote cite { display: block; margin-top: 14px; color: var(--accent); font-style: normal; font-weight: 700; font-size: 14px; }
.people-list { display: flex; flex-direction: column; gap: 12px; }
.people-item { padding: 18px 22px; display: grid; grid-template-columns: 160px 1fr; gap: 18px; align-items: center; }
.people-item h3 { margin: 0; font-size: 18px; }
.scene-grid { display: grid; grid-template-columns: 1.25fr 0.85fr 0.95fr; grid-template-rows: auto auto; gap: 16px; }
.scene { padding: 24px; transition: transform .2s ease, box-shadow .2s ease; }
.scene-lg { grid-row: span 2; min-height: 360px; display: flex; flex-direction: column; justify-content: space-between; }
.scene-mark { font-size: 13px; color: var(--accent); font-weight: 700; margin-bottom: 12px; }
.news-feature, .news-item { padding: 22px; transition: transform .2s ease, box-shadow .2s ease; }
.news-feature { min-height: 100%; display: flex; flex-direction: column; justify-content: space-between; }
.news-side { display: flex; flex-direction: column; gap: 12px; }
.news-time { color: var(--accent); font-size: 13px; font-weight: 700; }
.metric-rows { border-top: 1px solid var(--line); }
.metric-row {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.metric-row b { font-size: 32px; color: var(--primary); line-height: 1; }
.metric-row p { color: var(--muted); }
.dir-list { display: flex; flex-direction: column; gap: 12px; }
.dir-row { padding: 18px 20px; display: grid; grid-template-columns: 160px 1fr; gap: 16px; align-items: center; }
.dir-action { margin-top: 18px; }
.accordion { --bs-accordion-border-color: var(--line); --bs-accordion-btn-focus-box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.16); }
.accordion-item { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin-bottom: 12px; background: #fff; box-shadow: var(--shadow); }
.accordion-button {
  font-family: var(--font);
  font-weight: 700;
  color: var(--ink);
  background: #fff;
  min-height: 60px;
  box-shadow: none;
}
.accordion-button:not(.collapsed) { color: var(--primary); background: #fff; box-shadow: none; }
.accordion-button:hover { background: #f8fbfe; }
.accordion-body { color: var(--muted); padding-top: 0; }
.closing { padding-top: 20px; }
.closing-inner {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 42px 40px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
}
.closing-inner .section-lead { margin-bottom: 0; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 36px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { min-height: 36px; display: inline-flex; align-items: center; color: var(--muted); }
.footer-links a:hover { color: var(--primary); }
.fine-print { color: var(--muted); font-size: 13px; margin-top: 18px; }
.copyright { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
@media (max-width: 1199.98px) {
  .hero-title { font-size: 40px; }
  .section-title { font-size: 28px; }
  .poster { width: 200px; }
  .poster-b { width: 220px; left: 120px; }
}
@media (max-width: 991.98px) {
  .nav-toggler { display: inline-flex; }
  .nav-cluster { display: none; width: 100%; }
  .navbar-collapse.show .nav-cluster, .navbar-collapse.collapsing .nav-cluster { display: block; }
  .navbar-collapse {
    position: absolute;
    left: 0; right: 0; top: var(--nav-h);
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px;
  }
  .nav-links, .nav-cta { flex-direction: column; align-items: stretch; margin: 0; }
  .nav-links a, .nav-cta .btn { width: 100%; }
  .nav-cta { margin-top: 8px; }
  .hero-grid, .solution-grid, .quality-grid, .news-grid, .scene-grid, .pain-grid, .step-row, .stat-band, .footer-grid { grid-template-columns: 1fr 1fr; }
  .scene-lg { grid-row: auto; min-height: 0; }
  .pain-grid { grid-template-columns: 1fr 1fr; }
  .stat + .stat { border-left: 0; border-top: 1px solid var(--line); }
  .stat-band { grid-template-columns: 1fr 1fr; }
  .people-item, .dir-row, .metric-row { grid-template-columns: 1fr; gap: 6px; }
  .hero-stage { height: auto; display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px; }
  .poster, .poster-a, .poster-b, .poster-c { position: relative; inset: auto; transform: none; flex: 0 0 240px; width: 240px; }
  .poster-b { width: 240px; }
  .closing-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767.98px) {
  .block { padding: 48px 0; }
  .hero { padding: 36px 0 48px; }
  .hero-title { font-size: 32px; }
  .section-title { font-size: 26px; }
  .hero-grid, .solution-grid, .quality-grid, .news-grid, .scene-grid, .pain-grid, .step-row, .footer-grid, .stat-band { grid-template-columns: 1fr; }
  .hero-actions .btn, .closing-inner .btn { width: 100%; }
  .quote { padding: 22px 18px; }
  .quote p { font-size: 16px; }
  .closing-inner { padding: 28px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --bg: #F4F7FB;
  --card: #FFFFFF;
  --ink: #1C2B3A;
  --muted: #5C6B7A;
  --primary: #1F4E79;
  --primary-hover: #163A5C;
  --accent: #C46B4A;
  --line: #E3EAF2;
  --soft: #E7EEF6;
  --shadow: 0 10px 28px rgba(31, 78, 121, 0.08);
  --shadow-hover: 0 18px 36px rgba(31, 78, 121, 0.16);
  --radius: 16px;
  --radius-btn: 12px;
  --nav-h: 76px;
  --font: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
/* roulang page: category1 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  padding-top: var(--nav-h);
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(31, 78, 121, 0.35);
  outline-offset: 2px;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.25; font-weight: 700; }
p:last-child { margin-bottom: 0; }
.container {
  width: min(1120px, calc(100% - 32px));
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
}
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1040;
  background: #fff;
  border-bottom: 1px solid var(--line);
  height: var(--nav-h);
}
.site-nav { background: #fff; min-height: var(--nav-h); padding: 0; }
.nav-inner { min-height: var(--nav-h); display: flex; align-items: center; gap: 12px; }
.brand { display: flex; flex-direction: column; justify-content: center; min-height: 44px; flex: 0 0 auto; }
.logo-main { font-size: 18px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.logo-sub { font-size: 12px; color: var(--accent); letter-spacing: 0.08em; line-height: 1.2; margin-top: 2px; }
.navbar-collapse { flex-grow: 1; }
.nav-cluster { display: flex; align-items: center; flex: 1; width: 100%; }
.nav-links { display: flex; align-items: center; gap: 6px; margin: 0 18px; padding: 0; list-style: none; }
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--ink);
  font-size: 15px;
}
.nav-links a:hover { background: var(--soft); color: var(--primary); }
.nav-links a.active { background: var(--soft); color: var(--primary); font-weight: 700; }
.nav-cta { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.btn {
  --bs-btn-bg: transparent;
  --bs-btn-border-color: transparent;
  --bs-btn-color: var(--ink);
  --bs-btn-hover-bg: transparent;
  --bs-btn-hover-border-color: transparent;
  --bs-btn-hover-color: var(--ink);
  --bs-btn-active-bg: transparent;
  --bs-btn-active-border-color: transparent;
  --bs-btn-active-color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  box-shadow: none;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-main {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-main:hover, .btn-main:focus, .btn-main:active {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
}
.btn-ghost {
  background: #fff;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-ghost:hover, .btn-ghost:focus, .btn-ghost:active {
  background: #fff7f4;
  color: var(--accent);
  border-color: var(--accent);
}
.nav-toggler {
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}
.nav-toggler span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.section-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.section-title { font-size: 32px; margin-bottom: 14px; max-width: 760px; }
.section-lead { color: var(--muted); max-width: 760px; margin-bottom: 28px; }
.age-pill, .tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}
.age-pill { background: #fff; color: var(--accent); border: 1px solid rgba(196, 107, 74, 0.35); margin-bottom: 16px; }
.tag { background: var(--soft); color: var(--primary); }
.tag-accent { background: #f8efe9; color: var(--accent); }
.block { padding: 80px 0; }
.block-tight { padding: 36px 0 12px; }
.cat-head { background: var(--bg); }
.crumb { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--primary); min-height: 44px; display: inline-flex; align-items: center; }
.crumb span[aria-hidden] { color: var(--line); }
.cat-title { font-size: 40px; margin-bottom: 12px; max-width: 760px; }
.cat-lead { color: var(--muted); max-width: 680px; margin-bottom: 0; }
.filter-wrap {
  position: sticky;
  top: var(--nav-h);
  z-index: 1020;
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.filter-row { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; }
.filter-group { display: flex; align-items: center; gap: 8px; min-height: 44px; }
.filter-label { color: var(--ink); font-size: 14px; font-weight: 700; margin-right: 4px; }
.filter-btn {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.is-on { background: var(--soft); color: var(--primary); border-color: transparent; }
.catalog { background: #fff; }
.sec-head { margin-bottom: 8px; }
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.poster-card, .rail-card, .watch-item, .time-item, .feedback-bar, .end-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.poster-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  color: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
.poster-card:hover, .rail-card:hover, .watch-item:hover, .time-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.poster-card[hidden] { display: none !important; }
.poster-face {
  position: relative;
  aspect-ratio: 3 / 4;
  background: #d7e4f1;
}
.poster-face::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 38%;
  background: rgba(28, 43, 58, 0.16);
}
.face-1 { background: #d7e4f1; }
.face-2 { background: #e7eef6; }
.face-3 { background: #f3e6df; }
.face-4 { background: #d9e6dc; }
.face-5 { background: #e4e9f2; }
.face-6 { background: #f6efe9; }
.face-7 { background: #d5e3ef; }
.face-8 { background: #efe4ea; }
.play-mark {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  z-index: 1;
  box-shadow: 0 8px 18px rgba(31, 78, 121, 0.12);
}
.play-mark::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 14px;
  border-style: solid;
  border-width: 9px 0 9px 14px;
  border-color: transparent transparent transparent var(--primary);
}
.poster-meta { padding: 14px 14px 16px; }
.poster-meta h3, .rail-card h3 { font-size: 16px; margin-bottom: 8px; }
.meta-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.more-row { display: flex; justify-content: center; margin-top: 28px; }
.empty-note {
  margin-top: 18px;
  color: var(--muted);
  background: var(--soft);
  border-radius: 12px;
  padding: 14px 16px;
}
.watch-note { background: var(--bg); }
.watch-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; max-width: 760px; }
.watch-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 8px;
  padding: 18px 20px;
  align-items: center;
}
.watch-no { font-size: 28px; color: var(--primary); letter-spacing: 0.04em; }
.watch-item h3 { font-size: 18px; margin-bottom: 4px; }
.watch-item p { color: var(--muted); font-size: 15px; }
.updates { background: #fff; }
.timeline { list-style: none; margin: 0; padding: 0; max-width: 820px; }
.time-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  margin-bottom: 12px;
  position: relative;
}
.time-item time { color: var(--accent); font-weight: 700; font-size: 14px; padding-top: 2px; }
.time-item h3 { font-size: 18px; margin-bottom: 4px; }
.time-item p { color: var(--muted); font-size: 15px; }
.rail-sec { background: var(--bg); }
.rail {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 2px 12px;
}
.rail-card {
  flex: 0 0 230px;
  scroll-snap-align: start;
  overflow: hidden;
  color: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
.rail-face { height: 132px; position: relative; }
.rail-card .poster-meta { padding: 12px 14px 14px; }
.feedback { background: #fff; padding-top: 40px; }
.feedback-bar {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 24px;
  padding: 28px;
  align-items: center;
}
.feedback-bar blockquote { margin: 0; }
.feedback-bar q { font-size: 20px; line-height: 1.6; display: block; margin-bottom: 12px; }
.who { color: var(--muted); font-size: 14px; }
.mini-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mini-stat {
  background: var(--bg);
  border-radius: 12px;
  padding: 16px 14px;
  border: 1px solid var(--line);
}
.mini-stat strong { display: block; font-size: 28px; color: var(--primary); line-height: 1.2; }
.mini-stat span { color: var(--muted); font-size: 13px; }
.end-sec { background: var(--bg); }
.end-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 32px;
}
.end-panel h2 { font-size: 30px; margin-bottom: 8px; }
.end-panel p { color: var(--muted); margin: 0; max-width: 560px; }
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 36px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.1fr 0.8fr 1.2fr; gap: 28px; align-items: start; }
.footer-links { display: flex; flex-direction: column; gap: 4px; }
.footer-links a { min-height: 36px; display: inline-flex; align-items: center; color: var(--primary); }
.footer-links a:hover { color: var(--primary-hover); }
.fine-print { color: var(--muted); font-size: 14px; margin: 12px 0 0; }
.copyright { margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
@media (max-width: 991.98px) {
  .nav-toggler { display: flex; }
  #navMain.navbar-collapse {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px;
    box-shadow: var(--shadow);
  }
  .nav-cluster { flex-direction: column; align-items: stretch; padding-bottom: 4px; }
  .nav-links { flex-direction: column; align-items: stretch; margin: 0; }
  .nav-links a { width: 100%; }
  .nav-cta { flex-direction: column; margin-left: 0; width: 100%; }
  .nav-cta .btn { width: 100%; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cat-title { font-size: 34px; }
  .section-title, .end-panel h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feedback-bar { grid-template-columns: 1fr; }
}
@media (max-width: 767.98px) {
  .block { padding: 48px 0; }
  .cat-title { font-size: 30px; }
  .catalog-grid {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 8px;
  }
  .poster-card { flex: 0 0 210px; scroll-snap-align: start; }
  .poster-face { aspect-ratio: 4 / 3; }
  .watch-item, .time-item { grid-template-columns: 1fr; gap: 4px; }
  .end-panel { flex-direction: column; align-items: flex-start; padding: 22px; }
  .end-panel .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .filter-group { flex-wrap: wrap; }
  .mini-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .section-title { font-size: 26px; }
  .feedback-bar q { font-size: 18px; }
}

/* 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}