/* roulang page: index */
:root {
  --plum: #4A1942;
  --mid: #8E3A62;
  --apricot: #E39B6A;
  --paper: #F7F1EA;
  --sand: #F3E6DC;
  --deep: #241820;
  --card: #FFF9F4;
  --ink: #2B2428;
  --on-dark: #F6F1EA;
  --muted: #6E5A62;
  --line: rgba(74, 25, 66, .08);
  --sub-bg: #1A1216;
  --sub-ink: #FFE7C2;
  --radius-xl: 28px;
  --radius-md: 20px;
  --radius-sm: 16px;
  --shadow: 0 16px 40px rgba(74, 25, 66, .12);
  --shadow-hover: 0 22px 48px rgba(74, 25, 66, .18);
  --grad: linear-gradient(135deg, #4A1942 0%, #8E3A62 52%, #E39B6A 100%);
  --grad-hover: linear-gradient(135deg, #4A1942 0%, #6d2748 58%, #8E3A62 100%);
  --bs-primary: #4A1942;
  --bs-body-font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --bs-body-color: #2B2428;
  --bs-body-bg: #F7F1EA;
  --bs-border-radius: 16px;
  --bs-link-color: #8E3A62;
  --bs-link-hover-color: #4A1942;
  --bs-focus-ring-color: rgba(227, 155, 106, .45);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: var(--mid); text-decoration: none; }
a:hover { color: var(--plum); text-decoration: underline; }
:focus-visible { outline: 2px solid var(--apricot); outline-offset: 2px; }
.container { max-width: 1140px; }
@media (min-width: 1200px) { .container { max-width: 1140px; } }
.site-nav {
  min-height: 72px;
  background: rgba(247, 241, 234, .96);
  border-bottom: 1px solid rgba(74, 25, 66, .16);
  backdrop-filter: saturate(1.1);
  z-index: 40;
}
.navbar-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.25;
  color: var(--plum);
  max-width: 280px;
  padding: 8px 0;
}
.navbar-brand:hover { color: var(--plum); text-decoration: none; }
.brand-sub { font-size: 11px; font-weight: 500; letter-spacing: .12em; color: var(--muted); }
.navbar-nav { gap: 4px; align-items: center; }
.nav-drop { position: relative; display: flex; align-items: center; }
.nav-link {
  color: var(--ink);
  font-weight: 500;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 8px 12px;
  position: relative;
}
.nav-link:hover { color: var(--plum); text-decoration: none; }
.nav-link.active { color: var(--plum); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 3px;
  border-radius: 999px;
  background: var(--apricot);
}
.caret-btn {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  border-radius: 999px;
  position: relative;
}
.caret-btn::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  border: 5px solid transparent;
  border-top-color: var(--plum);
}
.caret-btn:hover { background: var(--sand); }
.dropdown-menu {
  width: 320px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--card);
  padding: 16px;
  margin-top: 8px;
}
.drop-label { margin: 0 0 8px; font-size: 13px; color: var(--muted); }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip, .tag {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--plum);
  font-size: 13px;
  border: 1px solid var(--line);
}
.chip:hover, .tag:hover { background: #ead4c6; text-decoration: none; color: var(--plum); }
.drop-item {
  display: block;
  padding: 8px 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  border-top: 1px solid var(--line);
}
.drop-item:hover { color: var(--mid); }
.navbar-toggler {
  border: 1px solid rgba(74, 25, 66, .2);
  border-radius: 999px;
  width: 44px;
  height: 44px;
  padding: 0;
}
.navbar-toggler:focus { box-shadow: 0 0 0 2px var(--apricot); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234A1942' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.block { padding: 88px 0; }
.block-paper { background: var(--paper); }
.block-sand { background: var(--sand); }
.block-deep { background: var(--deep); color: var(--on-dark); }
.lamp {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 2px 12px;
  border-radius: 999px;
  background: #fff;
  color: var(--plum);
  font-size: 13px;
  border: 1px solid var(--line);
  margin-bottom: 12px;
}
.block-deep .lamp { background: transparent; color: var(--apricot); border-color: rgba(227, 155, 106, .4); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: 46px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--plum);
  letter-spacing: 0;
}
h2 { font-size: 30px; line-height: 1.3; font-weight: 700; color: var(--plum); margin-bottom: 12px; }
.block-deep h2, .block-deep h3 { color: var(--on-dark); }
.section-lead, .hero-lead {
  max-width: 34em;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 28px;
}
.block-deep .section-lead, .block-deep .muted { color: rgba(246, 241, 234, .78); }
.hero { padding: 56px 0 88px; }
.hero-sub { font-size: 18px; color: var(--mid); margin: 8px 0 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn-brand, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 26px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-brand {
  background: var(--grad);
  color: #fff;
  border: 0;
  box-shadow: var(--shadow);
}
.btn-brand:hover { background: var(--grad-hover); color: #fff; text-decoration: none; transform: translateY(-4px); }
.btn-ghost {
  background: transparent;
  color: var(--plum);
  border: 1px solid var(--plum);
}
.btn-ghost:hover { background: rgba(74, 25, 66, .05); color: var(--plum); text-decoration: none; transform: translateY(-4px); }
.btn-brand:disabled, .btn-ghost:disabled { opacity: .45; transform: none; }
.player-card {
  background: var(--grad);
  border-radius: var(--radius-xl);
  padding: 18px;
  box-shadow: var(--shadow);
}
.player-screen {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--sub-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.player-badge, .data-badge, .stat-num, .mini-badge, .net-badge {
  font-variant-numeric: tabular-nums;
  font-family: "Noto Sans SC", ui-monospace, monospace;
}
.player-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--apricot);
  color: var(--plum);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 700;
}
.subtitle-bar {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 16px;
  background: var(--sub-bg);
  color: var(--sub-ink);
  text-align: center;
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 16px;
}
.player-meta {
  display: flex;
  justify-content: space-between;
  color: var(--on-dark);
  font-size: 13px;
  margin-top: 12px;
}
.progress-track { height: 6px; background: rgba(255, 255, 255, .25); border-radius: 999px; margin-top: 10px; }
.progress-fill { width: 46%; height: 100%; border-radius: inherit; background: var(--apricot); }
.feature-card, .frame-card, .price-card, .review-card, .news-item, .shelf-card, .device, .entry-card, .spec-row, .scene-row {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.feature-card, .frame-card, .price-card, .review-card, .shelf-card, .device, .entry-card {
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover, .frame-card:hover, .price-card:hover, .review-card:hover, .shelf-card:hover, .device:hover, .entry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.feature-card { padding: 24px; min-height: 220px; position: relative; }
.feature-card h3, .price-card h3, .entry-card h3, .device h3 { font-size: 22px; margin-bottom: 8px; }
.card-copy { color: var(--muted); font-size: 15px; line-height: 1.7; margin: 0; }
.data-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 2px 12px;
  border-radius: 999px;
  background: var(--apricot);
  color: var(--plum);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 12px;
}
.scene-row {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr;
  gap: 12px;
  align-items: center;
  padding: 18px 22px;
  margin-bottom: 16px;
  border-radius: 22px;
}
.scene-row strong { font-size: 18px; color: var(--plum); }
.scene-row span { color: var(--muted); font-size: 14px; }
.frame-card { padding: 16px; height: 100%; }
.css-frame {
  border-radius: var(--radius-md);
  background: var(--sub-bg);
  min-height: 180px;
  position: relative;
  overflow: hidden;
}
.frame-main .css-frame { min-height: 360px; }
.frame-caption { font-size: 14px; color: var(--muted); margin: 12px 4px 0; }
.case-stats { display: grid; gap: 16px; }
.stat-badge {
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 20px 22px;
}
.stat-num { font-size: 40px; font-weight: 700; color: var(--plum); line-height: 1; }
.stat-badge small, .hint { display: block; color: var(--muted); font-size: 13px; margin-top: 6px; }
.case-story {
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  padding: 28px;
  box-shadow: var(--shadow);
  height: 100%;
}
.price-grid { align-items: end; }
.price-card { padding: 28px 22px 24px; position: relative; overflow: hidden; }
.price-card.tall { min-height: 460px; }
.price-card.mid { min-height: 400px; }
.price-card.short { min-height: 340px; }
.price-card::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--sand);
  border: 2px solid rgba(74, 25, 66, .15);
  position: absolute;
  top: 16px;
  left: 16px;
}
.price-num { font-size: 42px; color: var(--plum); font-weight: 700; line-height: 1; margin: 18px 0; }
.perk-list { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 20px; list-style: none; }
.review-wall { columns: 3; column-gap: 24px; }
.review-card { break-inside: avoid; margin-bottom: 24px; padding: 20px; }
.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--mid);
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}
.avatar.a2 { background: var(--plum); }
.avatar.a3 { background: #A85B45; }
.voice-band { border-radius: 0; }
.quote {
  font-size: 28px;
  line-height: 1.45;
  margin: 0 0 12px;
  color: var(--on-dark);
}
.mini-stats { display: grid; gap: 14px; }
.mini-badge {
  background: rgba(255, 249, 244, .08);
  border: 1px solid rgba(227, 155, 106, .35);
  border-radius: 20px;
  padding: 16px 18px;
}
.mini-badge b { display: block; font-size: 28px; color: var(--apricot); }
.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 16px;
  margin-bottom: 16px;
  border-radius: 22px;
}
.news-thumb {
  border-radius: 16px;
  background: var(--grad);
  min-height: 88px;
}
.news-item h3 { font-size: 18px; margin-bottom: 4px; }
.more-link { margin-top: 8px; font-weight: 700; }
.open-band {
  background: var(--grad);
  border-radius: var(--radius-xl);
  padding: 42px 36px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.open-band::after {
  content: "";
  position: absolute;
  right: -20px;
  top: -20px;
  width: 90px;
  height: 90px;
  background: rgba(255, 249, 244, .12);
  clip-path: polygon(12% 0, 100% 0, 100% 88%, 88% 100%, 0 100%, 0 12%);
}
.open-band h2 { color: #fff; }
.open-band p { color: rgba(255, 255, 255, .88); max-width: 34em; }
.spec-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  margin-bottom: 12px;
  border-radius: 18px;
}
.spec-row b { color: var(--plum); }
.shelf {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}
.shelf-card { min-width: 240px; scroll-snap-align: start; padding: 16px; }
.shelf-face {
  height: 140px;
  border-radius: var(--radius-md);
  background: var(--sub-bg);
  position: relative;
  margin-bottom: 12px;
}
.field { display: flex; justify-content: space-between; font-size: 14px; color: var(--muted); margin-top: 4px; }
.device-grid .device { padding: 16px; height: 100%; }
.safe-area {
  border: 1px dashed rgba(255, 231, 194, .7);
  border-radius: 16px;
  min-height: 180px;
  background: var(--sub-bg);
  position: relative;
}
.safe-label {
  position: absolute;
  left: 10px;
  top: 10px;
  color: var(--sub-ink);
  font-size: 13px;
}
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
.cal-day {
  background: var(--card);
  border-radius: 22px;
  border: 1px solid var(--line);
  min-height: 120px;
  padding: 14px 10px;
  text-align: center;
  box-shadow: var(--shadow);
}
.cal-day b { display: block; color: var(--plum); margin-bottom: 8px; }
.dot { display: inline-flex; min-height: 28px; align-items: center; padding: 0 8px; border-radius: 999px; background: var(--apricot); color: var(--plum); font-size: 12px; font-weight: 700; }
.dot.mute { background: var(--sand); }
.dot.dir { background: #f3d2b8; }
.entry-card { display: block; padding: 22px; margin-bottom: 16px; color: inherit; }
.entry-card:hover { color: inherit; text-decoration: none; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.search-box label { display: block; font-weight: 700; color: var(--plum); margin-bottom: 8px; }
.search-box input {
  width: 100%;
  min-height: 52px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
  padding: 10px 14px;
  margin-bottom: 12px;
}
.search-box input:focus { border-color: var(--apricot); box-shadow: 0 0 0 2px var(--apricot); outline: none; }
.accordion { --bs-accordion-border-width: 0; --bs-accordion-btn-focus-box-shadow: 0 0 0 2px #E39B6A; }
.accordion-item { background: transparent; margin-bottom: 12px; }
.accordion-button {
  border-radius: 18px !important;
  background: var(--card);
  color: var(--plum);
  font-weight: 700;
  min-height: 56px;
  box-shadow: none;
  border: 1px solid var(--line);
}
.accordion-button:not(.collapsed) { background: var(--sand); color: var(--plum); }
.accordion-button::after { filter: none; }
.accordion-body { background: var(--sand); border-radius: 0 0 18px 18px; color: var(--ink); }
.site-footer { background: var(--deep); color: var(--on-dark); padding: 64px 0 28px; }
.site-footer a { color: var(--apricot); }
.foot-brand { font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.foot-intro { color: rgba(246, 241, 234, .78); font-size: 14px; max-width: 28em; }
.site-footer h2 { font-size: 16px; color: #fff; margin-bottom: 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 8px 0; }
.copy { border-top: 1px solid rgba(246, 241, 234, .12); margin-top: 28px; padding-top: 16px; font-size: 13px; color: rgba(246, 241, 234, .7); }
@media (max-width: 1024px) {
  h1 { font-size: 38px; }
  .frame-main .css-frame { min-height: 260px; }
}
@media (max-width: 991.98px) {
  .navbar-collapse { background: var(--paper); padding-bottom: 12px; }
  .nav-drop { flex-wrap: wrap; width: 100%; }
  .dropdown-menu { position: static; width: 100%; box-shadow: none; display: block; border: 0; background: transparent; padding-left: 12px; }
  .review-wall { columns: 2; }
  .scene-row, .spec-row, .news-item { grid-template-columns: 1fr; }
  .price-card.tall { transform: none; }
}
@media (max-width: 768px) {
  .block, .hero { padding: 44px 0; }
  h1 { font-size: 32px; }
  h2, .quote { font-size: 26px; }
  .cal { grid-template-columns: repeat(2, 1fr); }
  .shelf { flex-direction: column; overflow: visible; }
  .shelf-card { min-width: 0; }
  .price-card, .price-card.tall, .price-card.mid, .price-card.short { min-height: 0; }
}
@media (max-width: 520px) {
  h1 { font-size: 30px; }
  .navbar-brand { font-size: 14px; max-width: 70vw; }
  .review-wall { columns: 1; }
  .hero-actions .btn-brand, .hero-actions .btn-ghost, .open-band .btn-brand { width: 100%; }
  .cal { grid-template-columns: 1fr 1fr; }
}

/* roulang page: category1 */
:root {
  --plum: #4A1942;
  --mid: #8E3A62;
  --apricot: #E39B6A;
  --paper: #F7F1EA;
  --sand: #F3E6DC;
  --deep: #241820;
  --card: #FFF9F4;
  --ink: #2B2428;
  --on-dark: #F6F1EA;
  --muted: #6E5A62;
  --line: rgba(74, 25, 66, .08);
  --sub-bg: #1A1216;
  --sub-ink: #FFE7C2;
  --radius-xl: 28px;
  --radius-md: 20px;
  --radius-sm: 16px;
  --shadow: 0 16px 40px rgba(74, 25, 66, .12);
  --shadow-hover: 0 22px 48px rgba(74, 25, 66, .18);
  --grad: linear-gradient(135deg, #4A1942 0%, #8E3A62 52%, #E39B6A 100%);
  --grad-hover: linear-gradient(135deg, #4A1942 0%, #6d2748 58%, #8E3A62 100%);
  --bs-primary: #4A1942;
  --bs-body-font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --bs-body-color: #2B2428;
  --bs-body-bg: #F7F1EA;
  --bs-border-radius: 16px;
  --bs-link-color: #8E3A62;
  --bs-link-hover-color: #4A1942;
  --bs-focus-ring-color: rgba(227, 155, 106, .45);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: var(--mid); text-decoration: none; }
a:hover { color: var(--plum); text-decoration: underline; }
:focus-visible { outline: 2px solid var(--apricot); outline-offset: 2px; }
.container { max-width: 1140px; }
.site-nav {
  min-height: 72px;
  background: rgba(247, 241, 234, .96);
  border-bottom: 1px solid rgba(74, 25, 66, .16);
  z-index: 40;
}
.navbar-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.25;
  color: var(--plum);
  max-width: 280px;
  padding: 8px 0;
  white-space: normal;
}
.navbar-brand:hover { color: var(--plum); text-decoration: none; }
.brand-sub { font-size: 11px; font-weight: 500; letter-spacing: .12em; color: var(--muted); }
.navbar-nav { gap: 4px; align-items: center; }
.nav-drop { position: relative; display: flex; align-items: center; }
.nav-link {
  color: var(--ink);
  font-weight: 500;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 8px 12px;
  position: relative;
}
.nav-link:hover, .nav-link:focus { color: var(--plum); text-decoration: none; }
.nav-link.active { color: var(--plum); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 3px;
  border-radius: 999px;
  background: var(--apricot);
}
.caret-btn {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  border-radius: 999px;
  position: relative;
}
.caret-btn::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  border: 5px solid transparent;
  border-top-color: var(--plum);
}
.caret-btn:hover, .caret-btn:focus { background: var(--sand); }
.dropdown-menu.drop-panel {
  width: 320px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--card);
  padding: 16px;
  margin-top: 8px;
}
.drop-label { font-size: 12px; color: var(--muted); margin: 0 0 8px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip, .tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--plum);
  font-size: 13px;
  border: 1px solid var(--line);
  transition: background .2s ease, transform .2s ease;
}
.chip:hover, .tag:hover, .chip:focus, .tag:focus {
  background: #ead4c6;
  text-decoration: none;
  color: var(--plum);
}
.drop-item {
  display: block;
  padding: 8px 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  border-top: 1px solid var(--line);
}
.drop-item:hover { color: var(--mid); text-decoration: none; }
.navbar-toggler {
  border: 1px solid rgba(74, 25, 66, .2);
  border-radius: 999px;
  width: 44px;
  height: 44px;
  padding: 0;
}
.navbar-toggler:focus { box-shadow: 0 0 0 2px var(--apricot); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234A1942' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.section { padding: 84px 0; }
.block-paper { background: var(--paper); }
.block-sand { background: var(--sand); }
.section h2 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--plum);
  margin: 0 0 12px;
}
.section-lead {
  max-width: 34em;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 28px;
}
.kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--mid);
  font-size: 13px;
  margin-bottom: 10px;
}
.cat-head { padding: 36px 0 28px; background: var(--paper); }
.head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.cat-head h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--plum);
  margin: 0 0 8px;
}
.head-sub { margin: 0; color: var(--mid); font-size: 16px; }
.count-badge {
  position: relative;
  min-width: 148px;
  padding: 18px 22px;
  border-radius: 20px;
  background: var(--apricot);
  color: var(--plum);
  text-align: center;
  box-shadow: var(--shadow);
}
.count-badge strong {
  display: block;
  font-size: 36px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  font-family: "Noto Sans SC", ui-monospace, monospace;
}
.count-badge span { font-size: 13px; font-weight: 700; }
.count-badge::before, .count-badge::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--paper);
  top: 50%;
  transform: translateY(-50%);
}
.count-badge::before { left: -8px; }
.count-badge::after { right: -8px; }
.filter-stick {
  position: sticky;
  top: 72px;
  z-index: 30;
  background: rgba(243, 230, 220, .96);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}
.filter-stick h2 { font-size: 16px; margin: 0 0 10px; }
.filter-inner { display: flex; flex-wrap: wrap; gap: 18px 28px; }
.filter-group { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.filter-name { font-size: 13px; color: var(--muted); min-width: 64px; }
.shelf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.shelf-card {
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 14px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.shelf-card.span-2 { grid-column: span 2; }
.shelf-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--grad);
}
.frame-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform .35s ease;
}
.shelf-card:hover .frame-img { transform: scale(1.06); }
.corner-badge, .data-badge, .stat-num, .mini-badge {
  font-variant-numeric: tabular-nums;
  font-family: "Noto Sans SC", ui-monospace, monospace;
}
.corner-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--apricot);
  color: var(--plum);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 700;
}
.subtitle-bar {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 12px;
  background: var(--sub-bg);
  color: var(--sub-ink);
  text-align: center;
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 15px;
}
.card-title {
  font-size: 18px;
  line-height: 1.4;
  margin: 14px 8px 4px;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta { margin: 0 8px 8px; color: var(--muted); font-size: 14px; }
.note-wrap { max-width: 760px; }
.spec-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.spec-list li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.spec-list strong { color: var(--plum); display: block; margin-bottom: 4px; }
.spec-list p { margin: 0; color: var(--ink); max-width: 34em; }
.year-row { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 6px; }
.year-pill {
  flex: 0 0 240px;
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  min-height: 112px;
  color: var(--ink);
}
.year-pill:hover { text-decoration: none; color: var(--plum); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.year-pill b { display: block; font-size: 18px; color: var(--plum); }
.year-pill span { color: var(--muted); font-size: 14px; }
.line-list { display: grid; gap: 12px; }
.line-card {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 16px;
  align-items: center;
  background: var(--card);
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 14px 18px;
  min-height: 72px;
}
.line-card .tag { min-height: 36px; }
.line-title { font-weight: 700; color: var(--ink); }
.line-meta { color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.more-row { margin-top: 22px; }
.news-list { display: grid; gap: 14px; }
.news-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  align-items: center;
  background: var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 16px;
  color: var(--ink);
  transition: transform .2s ease, box-shadow .2s ease;
}
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); text-decoration: none; color: var(--plum); }
.news-mark {
  width: 88px;
  height: 72px;
  border-radius: 16px;
  background: var(--grad);
  color: var(--on-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}
.news-item h3 { font-size: 18px; margin: 0 0 4px; }
.news-item p { margin: 0; color: var(--muted); font-size: 14px; }
.resume-block {
  background: var(--grad);
  padding: 48px 0;
  position: relative;
}
.resume-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(26, 18, 22, .28);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
}
.resume-block h2 { color: var(--on-dark); margin: 0 0 6px; }
.resume-block p { margin: 0; color: var(--on-dark); }
.btn-brand, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 26px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-brand {
  background: var(--grad);
  color: #fff;
  border: 0;
  box-shadow: var(--shadow);
}
.resume-block .btn-brand { background: var(--card); color: var(--plum); }
.btn-brand:hover { background: var(--grad-hover); color: #fff; text-decoration: none; transform: translateY(-4px); }
.resume-block .btn-brand:hover { background: #fff; color: var(--plum); }
.btn-ghost {
  background: transparent;
  color: var(--plum);
  border: 1px solid var(--plum);
}
.btn-ghost:hover { background: rgba(74, 25, 66, .05); color: var(--plum); text-decoration: none; transform: translateY(-4px); }
.site-footer { background: var(--deep); color: var(--on-dark); padding: 64px 0 28px; }
.site-footer h2 { font-size: 16px; color: var(--apricot); margin: 0 0 12px; }
.site-footer a { color: var(--on-dark); }
.site-footer a:hover { color: var(--apricot); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 6px 0; }
.foot-brand { font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.foot-intro { color: rgba(246, 241, 234, .78); max-width: 34em; margin: 0; }
.copy { margin: 28px 0 0; color: rgba(246, 241, 234, .62); font-size: 13px; }
@media (max-width: 1199.98px) {
  .container { max-width: 1140px; }
}
@media (max-width: 991.98px) {
  .navbar-nav { align-items: stretch; padding: 8px 0 16px; }
  .nav-drop { flex-wrap: wrap; }
  .dropdown-menu.drop-panel {
    position: static;
    display: block;
    width: 100%;
    box-shadow: none;
    border: 0;
    background: transparent;
    padding: 0 0 8px 12px;
  }
  .shelf-grid { grid-template-columns: 1fr 1fr; }
  .shelf-card.span-2 { grid-column: span 2; }
  .section { padding: 56px 0; }
  .cat-head h1 { font-size: 36px; }
  .line-card { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 767.98px) {
  .shelf-grid { grid-template-columns: 1fr; }
  .shelf-card.span-2 { grid-column: auto; }
  .news-item { grid-template-columns: 72px 1fr; }
  .resume-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 575.98px) {
  .cat-head { padding: 28px 0 20px; }
  .cat-head h1 { font-size: 30px; }
  .section h2 { font-size: 26px; }
  .section { padding: 44px 0; }
  .head-row { flex-direction: column; align-items: flex-start; }
  .count-badge { width: 100%; }
  .filter-stick { top: 64px; }
  .year-pill { flex-basis: 78%; }
  .navbar-brand { font-size: 15px; max-width: 70%; }
}

/* roulang page: category2 */
:root {
 --plum: #4A1942;
 --mid: #8E3A62;
 --apricot: #E39B6A;
 --paper: #F7F1EA;
 --sand: #F3E6DC;
 --deep: #241820;
 --card: #FFF9F4;
 --ink: #2B2428;
 --on-dark: #F6F1EA;
 --muted: #6E5A62;
 --line: rgba(74, 25, 66, .08);
 --sub-bg: #1A1216;
 --sub-ink: #FFE7C2;
 --radius-xl: 28px;
 --radius-md: 20px;
 --radius-sm: 16px;
 --shadow: 0 16px 40px rgba(74, 25, 66, .12);
 --shadow-hover: 0 22px 48px rgba(74, 25, 66, .18);
 --grad: linear-gradient(135deg, #4A1942 0%, #8E3A62 52%, #E39B6A 100%);
 --grad-hover: linear-gradient(135deg, #4A1942 0%, #6d2748 58%, #8E3A62 100%);
 --bs-primary: #4A1942;
 --bs-body-font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 --bs-body-color: #2B2428;
 --bs-body-bg: #F7F1EA;
 --bs-border-radius: 16px;
 --bs-link-color: #8E3A62;
 --bs-link-hover-color: #4A1942;
 --bs-focus-ring-color: rgba(227, 155, 106, .45);
}
/* roulang page: cat-playback */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
 color: var(--ink);
 background: var(--paper);
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
a { color: var(--mid); text-decoration: none; }
a:hover { color: var(--plum); text-decoration: underline; }
a:focus-visible, button:focus-visible, .btn-brand:focus-visible, .btn-ghost:focus-visible {
 outline: 2px solid #E39B6A;
 outline-offset: 2px;
}
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 42px; line-height: 1.25; font-weight: 700; color: var(--plum); margin-bottom: 12px; }
h2 { font-size: 30px; line-height: 1.3; font-weight: 700; color: var(--plum); margin-bottom: 12px; }
h3 { font-size: 18px; line-height: 1.45; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.container { max-width: 1140px; }
.site-nav {
 min-height: 72px;
 background: rgba(247, 241, 234, .96);
 border-bottom: 1px solid rgba(74, 25, 66, .16);
 backdrop-filter: saturate(1.1);
 z-index: 40;
}
.navbar-brand {
 display: flex;
 flex-direction: column;
 justify-content: center;
 font-weight: 700;
 font-size: 16px;
 line-height: 1.25;
 color: var(--plum);
 max-width: 280px;
 padding: 8px 0;
}
.navbar-brand:hover { color: var(--plum); text-decoration: none; }
.brand-sub { font-size: 11px; font-weight: 500; letter-spacing: .12em; color: var(--muted); }
.navbar-nav { gap: 4px; align-items: center; }
.nav-drop { position: relative; display: flex; align-items: center; }
.nav-link {
 color: var(--ink);
 font-weight: 500;
 min-height: 44px;
 display: flex;
 align-items: center;
 padding: 8px 12px;
 position: relative;
}
.nav-link:hover { color: var(--plum); text-decoration: none; }
.nav-link.active { color: var(--plum); }
.nav-link.active::after {
 content: "";
 position: absolute;
 left: 12px;
 right: 12px;
 bottom: 6px;
 height: 3px;
 border-radius: 999px;
 background: var(--apricot);
}
.caret-btn {
 width: 44px;
 height: 44px;
 border: 0;
 background: transparent;
 border-radius: 999px;
 position: relative;
}
.caret-btn::before {
 content: "";
 position: absolute;
 left: 16px;
 top: 18px;
 border: 5px solid transparent;
 border-top-color: var(--plum);
}
.caret-btn:hover, .caret-btn:focus { background: var(--sand); }
.dropdown-toggle::after { display: none; }
.dropdown-menu {
 width: 320px;
 border-radius: 20px;
 border: 1px solid var(--line);
 box-shadow: var(--shadow);
 background: var(--card);
 padding: 16px;
 margin-top: 8px;
}
.drop-label {
 margin: 0 0 8px;
 font-size: 12px;
 color: var(--muted);
 letter-spacing: .08em;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip, .tag {
 display: inline-flex;
 align-items: center;
 min-height: 36px;
 padding: 4px 12px;
 border-radius: 999px;
 background: var(--sand);
 color: var(--plum);
 font-size: 13px;
 border: 1px solid var(--line);
}
.chip:hover, .tag:hover, .chip:focus, .tag:focus { background: #ead4c6; text-decoration: none; color: var(--plum); }
.drop-item {
 display: block;
 padding: 8px 0;
 color: var(--ink);
 font-size: 14px;
 line-height: 1.5;
 border-top: 1px solid var(--line);
}
.drop-item:hover { color: var(--mid); }
.navbar-toggler {
 border: 1px solid rgba(74, 25, 66, .2);
 border-radius: 999px;
 width: 44px;
 height: 44px;
 padding: 0;
}
.navbar-toggler:focus { box-shadow: 0 0 0 2px var(--apricot); }
.navbar-toggler-icon {
 background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234A1942' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.section-lead, .hero-lead {
 max-width: 34em;
 color: var(--muted);
 font-size: 16px;
 line-height: 1.75;
 margin-bottom: 0;
}
.block-deep .section-lead, .block-deep .muted, .on-dark-lead { color: rgba(246, 241, 234, .78); }
.hero { padding: 56px 0 88px; }
.hero-sub { font-size: 18px; color: var(--mid); margin: 8px 0 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn-brand, .btn-ghost {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 48px;
 padding: 10px 26px;
 border-radius: 999px;
 font-weight: 700;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-brand {
 background: var(--grad);
 color: #fff;
 border: 0;
 box-shadow: var(--shadow);
}
.btn-brand:hover { background: var(--grad-hover); color: #fff; text-decoration: none; transform: translateY(-4px); }
.btn-ghost {
 background: transparent;
 color: var(--plum);
 border: 1px solid var(--plum);
}
.btn-ghost:hover { background: rgba(74, 25, 66, .05); color: var(--plum); text-decoration: none; transform: translateY(-4px); }
.btn-brand:disabled, .btn-ghost:disabled { opacity: .45; transform: none; }
.player-card {
 background: var(--grad);
 border-radius: var(--radius-xl);
 padding: 18px;
 box-shadow: var(--shadow);
}
.player-badge, .data-badge, .stat-num, .mini-badge, .net-badge, .q-badge {
 font-variant-numeric: tabular-nums;
 font-family: "Noto Sans SC", ui-monospace, monospace;
}
.player-badge {
 position: absolute;
 top: 14px;
 right: 14px;
 background: var(--apricot);
 color: var(--plum);
 border-radius: 999px;
 padding: 6px 12px;
 font-size: 13px;
 font-weight: 700;
}
.subtitle-bar {
 position: absolute;
 left: 8%;
 right: 8%;
 bottom: 16px;
 background: var(--sub-bg);
 color: var(--sub-ink);
 text-align: center;
 border-radius: 12px;
 padding: 8px 12px;
 font-size: 16px;
}
.player-meta {
 display: flex;
 justify-content: space-between;
 color: var(--on-dark);
 font-size: 13px;
 margin-top: 12px;
}
.feature-card {
 background: var(--card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--line);
 box-shadow: var(--shadow);
}
.cat-head { background: var(--paper); padding: 28px 0 32px; border-bottom: 1px solid var(--line); }
.cat-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.cat-title { max-width: 560px; }
.kicker {
 display: inline-flex;
 align-items: center;
 min-height: 32px;
 padding: 2px 12px;
 border-radius: 999px;
 background: var(--plum);
 color: var(--apricot);
 font-size: 13px;
 font-weight: 700;
 margin-bottom: 12px;
}
.quality-badges { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.q-badge {
 position: relative;
 min-width: 108px;
 min-height: 72px;
 padding: 18px 18px 14px 28px;
 border-radius: 22px;
 background: var(--apricot);
 color: var(--plum);
 font-weight: 700;
 font-size: 16px;
 display: flex;
 align-items: center;
 box-shadow: var(--shadow);
}
.q-badge::before {
 content: "";
 width: 12px;
 height: 12px;
 border-radius: 50%;
 background: var(--paper);
 position: absolute;
 left: 10px;
 top: 12px;
}
.tier-block { background: var(--sand); padding: 80px 0; }
.tier-stack { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.tier-row {
 display: grid;
 grid-template-columns: 168px 1fr 148px;
 gap: 18px;
 align-items: center;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius-xl);
 box-shadow: var(--shadow);
 padding: 18px 20px;
 transition: transform .2s ease, box-shadow .2s ease;
}
.tier-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.tier-name { font-size: 22px; font-weight: 700; color: var(--plum); margin: 0; }
.tier-note { margin: 0; color: var(--muted); font-size: 13px; }
.sample-bar {
 background: var(--sub-bg);
 color: var(--sub-ink);
 border-radius: 12px;
 text-align: center;
 padding: 12px 16px;
 font-size: 16px;
}
.net-badge {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 6px 14px;
 border-radius: 999px;
 background: var(--apricot);
 color: var(--plum);
 font-weight: 700;
 font-size: 13px;
}
.list-block { background: var(--card); padding: 88px 0; }
.h-list { display: flex; flex-direction: column; gap: 20px; margin-top: 28px; }
.h-card {
 display: flex;
 gap: 22px;
 align-items: stretch;
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--radius-xl);
 box-shadow: var(--shadow);
 padding: 16px;
 transition: transform .2s ease, box-shadow .2s ease;
}
.h-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.frame {
 position: relative;
 width: 248px;
 flex: 0 0 248px;
 aspect-ratio: 16 / 9;
 border-radius: var(--radius-md);
 overflow: hidden;
 background: linear-gradient(145deg, #4A1942 0%, #8E3A62 58%, #E39B6A 100%);
}
.frame-badge {
 position: absolute;
 top: 10px;
 right: 10px;
 background: var(--apricot);
 color: var(--plum);
 border-radius: 999px;
 padding: 4px 10px;
 font-size: 12px;
 font-weight: 700;
}
.frame .cap {
 position: absolute;
 left: 8%;
 right: 8%;
 bottom: 8px;
 background: var(--sub-bg);
 color: var(--sub-ink);
 text-align: center;
 border-radius: 10px;
 padding: 4px 8px;
 font-size: 13px;
}
.h-card-body { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.h-card-body p { color: var(--muted); font-size: 14px; margin: 0 0 10px; max-width: 36em; }
.field-row {
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
 list-style: none;
 padding: 0;
 margin: 0;
}
.field-row li {
 min-height: 36px;
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 4px 12px;
 border-radius: 999px;
 background: #fff;
 border: 1px solid var(--line);
 font-size: 13px;
}
.field-row span { color: var(--muted); }
.device-block { background: var(--paper); padding: 88px 0; }
.device-card {
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: var(--radius-xl);
 box-shadow: var(--shadow);
 padding: 18px;
 height: 100%;
 transition: transform .2s ease, box-shadow .2s ease;
}
.device-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.device-screen {
 position: relative;
 border-radius: 18px;
 background: #2a1c26;
 margin-bottom: 14px;
 overflow: hidden;
}
.device-screen.phone { height: 220px; }
.device-screen.pad { height: 180px; }
.device-screen.desk { height: 140px; }
.mini-sub {
 position: absolute;
 left: 10%;
 right: 10%;
 background: var(--sub-bg);
 color: var(--sub-ink);
 text-align: center;
 border-radius: 8px;
 font-size: 13px;
 padding: 6px 8px;
}
.phone .mini-sub { bottom: 36px; }
.pad .mini-sub { bottom: 22px; left: 16%; right: 16%; }
.desk .mini-sub { bottom: 12px; left: 18%; right: 18%; }
.safe-tag {
 display: inline-flex;
 min-height: 32px;
 align-items: center;
 padding: 2px 10px;
 border-radius: 999px;
 background: var(--sand);
 color: var(--plum);
 font-size: 13px;
}
.device-card p { color: var(--muted); font-size: 14px; margin: 8px 0 0; }
.bar-block { background: var(--deep); padding: 88px 0; }
.bar-block h2 { color: var(--on-dark); }
.bar-block .kicker { background: var(--apricot); color: var(--plum); }
.stage {
 margin-top: 28px;
 background: #1a1216;
 border-radius: var(--radius-xl);
 padding: 28px 22px;
 box-shadow: var(--shadow);
}
.opacity-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.opacity-sample { text-align: center; }
.op-bar {
 border-radius: 12px;
 color: var(--sub-ink);
 padding: 14px 10px;
 margin-bottom: 10px;
 font-size: 15px;
}
.op-low { background: rgba(26, 18, 22, .45); border: 1px solid rgba(255, 231, 194, .35); }
.op-mid { background: rgba(26, 18, 22, .72); }
.op-high { background: rgba(26, 18, 22, .94); box-shadow: inset 0 0 0 1px rgba(255, 231, 194, .25); }
.op-label { color: var(--on-dark); font-size: 13px; }
.stat-band { background: var(--grad); padding: 64px 0; }
.stat-band h2 { color: #fff; }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 8px; }
.stat-item {
 background: rgba(36, 24, 32, .28);
 border-radius: var(--radius-xl);
 padding: 22px 18px 18px;
 color: var(--on-dark);
 border: 1px solid rgba(255, 255, 255, .12);
}
.stat-num { font-size: 40px; font-weight: 700; color: #fff; line-height: 1.1; }
.stat-label { margin: 6px 0 0; color: var(--on-dark); font-size: 15px; }
.stat-note { margin: 18px 0 0; color: var(--apricot); font-size: 13px; }
.more-block { background: var(--sand); padding: 56px 0; }
.more-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.article-block { background: var(--paper); padding: 80px 0; }
.article-list { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.article-row {
 display: grid;
 grid-template-columns: 96px 1fr auto;
 gap: 16px;
 align-items: center;
 background: var(--card);
 border: 1px solid var(--line);
 border-radius: 22px;
 padding: 14px 16px;
 box-shadow: var(--shadow);
 color: var(--ink);
 transition: transform .2s ease, box-shadow .2s ease;
}
.article-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); color: var(--plum); text-decoration: none; }
.article-title { font-weight: 700; }
.article-meta { color: var(--muted); font-size: 13px; }
.site-footer { background: var(--deep); color: var(--on-dark); padding: 64px 0 28px; }
.foot-brand { font-weight: 700; font-size: 18px; color: var(--on-dark); margin-bottom: 8px; }
.foot-intro { color: rgba(246, 241, 234, .78); font-size: 14px; line-height: 1.75; max-width: 34em; }
.site-footer h2 { font-size: 16px; color: var(--on-dark); margin: 0 0 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 8px 0; }
.site-footer a { color: var(--on-dark); }
.site-footer a:hover { color: var(--apricot); }
.copy {
 border-top: 1px solid rgba(246, 241, 234, .12);
 margin: 28px 0 0;
 padding-top: 16px;
 color: rgba(246, 241, 234, .7);
 font-size: 13px;
}
@media (min-width: 992px) {
 .nav-drop .dropdown-menu { right: 0; left: auto; }
}
@media (max-width: 991.98px) {
 .navbar-nav { align-items: stretch; padding: 8px 0 16px; }
 .nav-drop { flex-wrap: wrap; }
 .nav-drop .dropdown-menu { position: static !important; transform: none !important; width: 100%; margin-top: 0; }
 .cat-head-row, .more-row { flex-direction: column; align-items: flex-start; }
 .quality-badges { justify-content: flex-start; }
 .tier-row { grid-template-columns: 1fr; }
 .opacity-row { grid-template-columns: 1fr; }
 .stat-grid { grid-template-columns: 1fr; }
 .article-row { grid-template-columns: 1fr; }
}
@media (max-width: 767.98px) {
 .tier-block, .list-block, .device-block, .bar-block, .article-block { padding: 44px 0; }
 .stat-band { padding: 40px 0; }
 .h-card { flex-direction: column; }
 .frame { width: 100%; flex-basis: auto; }
 h1 { font-size: 30px; }
 h2 { font-size: 24px; }
 .navbar-brand { font-size: 14px; max-width: calc(100% - 64px); }
}

/* 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}