/* roulang page: index */
:root {
  --bg: #060A14;
  --raise: #0C1424;
  --panel: #101A2E;
  --blue: #3BA3FF;
  --blue-deep: #1E6FE0;
  --cyan: #67E8F9;
  --amber: #E6B35A;
  --text: #E7F0FA;
  --muted: #93A4BE;
  --glass: rgba(16, 28, 52, 0.58);
  --line: rgba(130, 186, 255, 0.22);
  --hair: rgba(103, 232, 249, 0.14);
  --shadow: 0 16px 40px rgba(2, 8, 20, 0.35);
  --radius: 18px;
  --dock: 999px;
  --ok: #8f3d4e;
  --space: 88px;
  --font: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Segoe UI Mono", monospace;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; }
button, input, select, textarea { font-family: inherit; font-size: 16px; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--cyan); }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { line-height: 1.35; font-weight: 700; letter-spacing: 0; }
h1 { font-size: clamp(1.85rem, 3.2vw, 2.7rem); }
h2 { font-size: clamp(1.35rem, 2.2vw, 1.85rem); margin-bottom: 14px; }
h3 { font-size: 1.05rem; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: rgba(59, 163, 255, 0.35); color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.container { max-width: 1140px; }
.num, .n99 { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.n99 { color: var(--amber); font-weight: 700; }
.lead-copy { color: var(--muted); max-width: 72ch; margin-bottom: 28px; }
.band { padding: var(--space) 0; position: relative; border-top: 1px solid var(--hair); }
.band:first-child { border-top: 0; }
.band-a { background: var(--bg); }
.band-b { background: radial-gradient(1200px 240px at 10% 0%, rgba(59, 163, 255, 0.08), transparent 60%), var(--raise); }
.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.glow-btn, .ghost-btn, .icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--dock);
  border: 0;
  transition: transform .18s ease, filter .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
  white-space: nowrap;
  font-weight: 700;
}
.glow-btn {
  color: #061018;
  background: linear-gradient(100deg, var(--blue-deep), var(--blue) 58%, var(--cyan));
  box-shadow: 0 0 0 1px rgba(103, 232, 249, 0.35), 0 8px 24px rgba(59, 163, 255, 0.45);
}
.glow-btn:hover { color: #061018; filter: brightness(1.08); transform: translateY(-1px); }
.glow-btn:active { transform: translateY(0); filter: none; box-shadow: 0 0 0 1px rgba(103, 232, 249, 0.2), 0 3px 10px rgba(59, 163, 255, 0.25); }
.ghost-btn { color: var(--text); background: rgba(8, 16, 32, 0.45); border: 1px solid var(--line); }
.ghost-btn:hover { color: var(--text); border-color: rgba(103, 232, 249, 0.55); transform: translateY(-1px); }
.ghost-btn:active { transform: translateY(0); }
.icon-btn {
  width: 44px;
  padding: 0;
  color: var(--text);
  background: rgba(8, 16, 32, 0.45);
  border: 1px solid var(--line);
}
.icon-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.icon-btn[aria-expanded="true"] { border-color: var(--cyan); color: var(--cyan); }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(59, 163, 255, 0.12);
}
.badge-hd { color: var(--cyan); border-color: rgba(103, 232, 249, 0.4); }
.badge-up { color: var(--amber); border-color: rgba(230, 179, 90, 0.45); background: rgba(230, 179, 90, 0.08); }
.badge-time { color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); display: inline-block; flex: 0 0 auto; }
.dot.warn { background: var(--amber); box-shadow: 0 0 8px rgba(230, 179, 90, 0.8); }
.kicker { color: var(--cyan); font-size: 13px; letter-spacing: 0.08em; margin-bottom: 8px; }

.dock-wrap { position: sticky; top: 16px; z-index: 50; padding: 18px 16px 0; }
.dock {
  width: min(1100px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px 10px 18px;
  border-radius: 28px;
  background: rgba(12, 20, 38, 0.78);
  border: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(2, 8, 20, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.dock-wrap.is-tight { top: 8px; }
.dock-wrap.is-tight .dock { padding-top: 6px; padding-bottom: 6px; }
.brand { display: flex; align-items: baseline; gap: 6px; font-weight: 700; font-size: 1.05rem; color: var(--text); margin-right: 6px; }
.brand:hover { color: var(--text); }
.dock-nav { display: flex; align-items: center; gap: 4px; }
.dock-nav a, .sheet-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
}
.dock-nav a:hover, .sheet-nav a:hover { color: var(--text); background: rgba(59, 163, 255, 0.1); }
.dock-nav a.is-active, .sheet-nav a.is-active { color: var(--text); background: rgba(59, 163, 255, 0.16); box-shadow: inset 0 0 0 1px rgba(103, 232, 249, 0.28); }
.dock-search { margin-left: auto; display: flex; }
.dock-search input, .sheet-search input, .field input, .field select, .field textarea {
  width: 100%;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 20, 0.55);
  color: var(--text);
  padding: 10px 14px;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.dock-search input { width: 210px; border-radius: 999px; background: rgba(6, 10, 20, 0.4); }
.dock-search input:focus, .sheet-search input:focus, .field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(103, 232, 249, 0.7);
  box-shadow: 0 0 0 3px rgba(103, 232, 249, 0.15);
}
.dock-search input::placeholder, .field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.dock-tools { display: none; gap: 8px; margin-left: auto; }
.dock-sheet {
  width: min(1100px, calc(100% - 32px));
  margin: 8px auto 0;
  padding: 14px;
  border-radius: 20px;
}
.dock-sheet[hidden] { display: none; }
.sheet-nav { display: grid; gap: 6px; margin: 10px 0; }
.sheet-nav a { border-radius: 12px; }

.metric-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.metric {
  padding: 16px 16px 14px;
  min-height: 148px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.metric .label { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.metric strong { font-size: clamp(1.5rem, 2vw, 1.9rem); font-weight: 700; letter-spacing: 0; }
.metric p { color: var(--muted); font-size: 13px; line-height: 1.6; }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr); gap: 18px; align-items: stretch; }
.hero-stack { display: grid; gap: 14px; align-content: start; }
.hero-main { padding: 28px 26px 24px; position: relative; z-index: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.side-card { padding: 16px 18px; }
.side-a { margin-left: 7%; transform: translateY(-6px); }
.side-b { margin-left: 14%; }
.side-card .num { display: block; font-size: 1.45rem; margin: 6px 0; }
.side-card p { color: var(--muted); font-size: 14px; }
.player { padding: 12px; display: flex; flex-direction: column; gap: 10px; min-height: 100%; }
.stage {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  background:
    radial-gradient(80% 80% at 70% 80%, rgba(30, 111, 224, 0.45), transparent 60%),
    linear-gradient(160deg, #101A2E, #07101f 70%);
  box-shadow: inset 0 0 0 1px rgba(130, 186, 255, 0.16);
}
.stage img { width: 100%; height: 100%; object-fit: cover; opacity: 0.88; }
.stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 10, 20, 0) 40%, rgba(6, 10, 20, 0.82)),
    repeating-linear-gradient(180deg, transparent 0 3px, rgba(103, 232, 249, 0.035) 3px 4px);
  pointer-events: none;
}
.stage-caption { position: absolute; left: 14px; right: 14px; bottom: 12px; z-index: 1; display: flex; justify-content: space-between; gap: 8px; align-items: end; }
.playhead {
  position: absolute;
  left: 8%;
  right: 28%;
  bottom: 46px;
  height: 3px;
  background: rgba(231, 240, 250, 0.2);
  border-radius: 99px;
  z-index: 1;
}
.playhead i { display: block; width: 42%; height: 100%; background: linear-gradient(90deg, var(--blue), var(--amber)); border-radius: inherit; position: relative; }
.playhead i::after { content: ""; position: absolute; right: -5px; top: -4px; width: 11px; height: 11px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 10px var(--amber); }
.player-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.player-bar button, .ep {
  min-height: 44px;
  min-width: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 20, 0.45);
  color: var(--text);
}
.player-bar button:hover, .ep:hover { border-color: var(--cyan); }
.ep.is-on { border-color: rgba(230, 179, 90, 0.7); color: var(--amber); }
.time-read { margin-left: auto; color: var(--muted); font-size: 13px; }

.scene-row { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
.scene-row::-webkit-scrollbar { height: 8px; }
.scene-row::-webkit-scrollbar-thumb { background: rgba(103, 232, 249, 0.35); border-radius: 99px; }
.scene {
  flex: 0 0 min(280px, 78vw);
  scroll-snap-align: start;
  padding: 18px;
  border-radius: 999px;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.scene b { font-size: 1.05rem; }
.scene span { color: var(--muted); font-size: 14px; }

.matrix { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: minmax(132px, auto); gap: 14px; }
.cell { padding: 18px; }
.cell.big { grid-column: span 2; grid-row: span 2; }
.cell p { color: var(--muted); margin-top: 8px; }
.cell .idx { color: var(--cyan); font-size: 12px; }

.cover-link { display: block; position: relative; border-radius: var(--radius); overflow: hidden; min-height: 280px; height: 100%; border: 1px solid var(--line); box-shadow: var(--shadow); }
.cover-link img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
.cover-link .shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 10, 20, 0.05), rgba(6, 10, 20, 0.88)); }
.cover-copy { position: absolute; left: 18px; right: 18px; bottom: 16px; }
.cover-link:hover { transform: translateY(-2px); border-color: rgba(103, 232, 249, 0.5); }
.plist { display: flex; flex-direction: column; gap: 10px; }
.plist a, .news-side a, .rel a {
  display: block;
  transition: transform .18s ease, border-color .18s ease;
}
.row-item { padding: 12px 14px; }
.row-item:hover { transform: translateY(-2px); border-color: rgba(103, 232, 249, 0.5); }
.row-item h3 { font-size: 1rem; margin-bottom: 4px; }
.meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; color: var(--muted); font-size: 13px; }
.entry-head { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin-bottom: 8px; }

.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cmp-col { padding: 18px; }
.cmp-col h3 { margin-bottom: 12px; }
.track { display: grid; grid-template-columns: 72px 1fr auto; gap: 10px; align-items: center; margin: 10px 0; }
.track span, .track em { font-style: normal; color: var(--muted); font-size: 14px; }
.bar { height: 8px; border-radius: 99px; background: rgba(231, 240, 250, 0.08); overflow: hidden; }
.bar i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, var(--blue-deep), var(--cyan)); border-radius: inherit; }
.cmp-col.focus { box-shadow: var(--shadow), inset 0 0 0 1px rgba(103, 232, 249, 0.25); }
.cmp-col.focus .bar i { background: linear-gradient(90deg, var(--blue), var(--amber)); }

.clarity { display: grid; gap: 12px; }
.clarity article { padding: 16px 18px; display: grid; grid-template-columns: 120px 1fr; gap: 12px 18px; align-items: center; }
.clarity p { grid-column: 1 / -1; color: var(--muted); }
.seg { height: 10px; border-radius: 99px; background: rgba(231, 240, 250, 0.08); overflow: hidden; }
.seg i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, #1E6FE0, #67E8F9); }

.rail { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 8px; }
.rail::before { content: ""; position: absolute; left: 6%; right: 6%; top: 28px; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); }
.node { padding: 16px; position: relative; }
.node .step { color: var(--amber); font-size: 13px; }
.node p { color: var(--muted); margin-top: 8px; font-size: 14px; }

.feature { display: block; height: 100%; overflow: hidden; }
.feature img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.feature div { padding: 16px 16px 18px; }
.feature:hover { transform: translateY(-2px); border-color: rgba(103, 232, 249, 0.5); }
.news-side { display: flex; flex-direction: column; gap: 10px; height: 100%; }
.news-side a { padding: 12px 14px; }
.news-side p, .feature p { color: var(--muted); font-size: 14px; margin-top: 6px; }

.device-stage { position: relative; min-height: 460px; }
.screen { position: absolute; border-radius: 22px; overflow: hidden; border: 1px solid var(--line); background: rgba(16, 26, 46, 0.9); box-shadow: var(--shadow); }
.screen header, .screen .body { padding: 12px 14px; }
.screen header { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--hair); }
.phone { width: min(230px, 46vw); left: 4%; top: 48px; z-index: 3; }
.pad { width: min(360px, 58vw); left: 24%; top: 18px; z-index: 2; }
.desk { width: min(520px, 70vw); right: 0; top: 86px; z-index: 1; }
.screen .body p { color: var(--muted); font-size: 14px; }
.mini-bar { margin-top: 12px; height: 6px; border-radius: 99px; background: rgba(231, 240, 250, 0.12); }
.mini-bar i { display: block; width: 42%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--amber)); }

.guard { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 12px; }
.guard article { padding: 18px; }
.guard p { color: var(--muted); margin-top: 8px; font-size: 14px; }

.quick { display: grid; gap: 10px; }
.quick article { padding: 12px 16px; display: grid; grid-template-columns: 180px 1fr; gap: 12px; align-items: center; }
.quick p { color: var(--muted); }

.faq details { border-radius: 16px; margin-bottom: 10px; overflow: hidden; }
.faq summary { min-height: 52px; padding: 12px 16px; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--cyan); font-family: var(--mono); font-weight: 500; }
.faq details[open] summary::after { content: "–"; }
.faq details[open] { border-color: rgba(103, 232, 249, 0.4); }
.faq .ans { padding: 0 16px 14px; color: var(--muted); }

.form-card { padding: 22px; }
.field { margin-bottom: 14px; }
.field label, .field legend { display: block; margin-bottom: 6px; font-size: 14px; color: var(--text); padding: 0; }
.checks { display: flex; flex-wrap: wrap; gap: 8px; }
.check { min-height: 44px; display: inline-flex; align-items: center; gap: 8px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line); background: rgba(6, 10, 20, 0.35); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea, .field.is-invalid .check { border-color: var(--ok); box-shadow: 0 0 0 1px rgba(143, 61, 78, 0.45); }
.err { display: block; color: #e7a0ad; font-size: 13px; min-height: 1.2em; }
.form-note { color: var(--muted); font-size: 14px; margin-top: 8px; }
.ok-banner { display: none; margin-bottom: 12px; padding: 12px 14px; border-radius: 12px; border: 1px solid rgba(103, 232, 249, 0.4); color: var(--cyan); background: rgba(103, 232, 249, 0.08); }
.ok-banner.show { display: block; }
.empty { color: var(--amber); margin-top: 8px; }

.site-foot { background: #04070f; border-top: 1px solid var(--hair); padding: 42px 0 28px; color: var(--muted); }
.site-foot .brand { margin-bottom: 8px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: flex-end; }
.foot-links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); }
.foot-links a:hover { color: var(--cyan); }
.copy { margin-top: 18px; font-size: 13px; }

@media (max-width: 992px) {
  :root { --space: 64px; }
  .metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-grid, .cmp, .clarity article, .quick article { grid-template-columns: 1fr; }
  .matrix { grid-template-columns: 1fr 1fr; }
  .cell.big { grid-column: span 2; grid-row: auto; }
  .guard { grid-template-columns: 1fr 1fr; }
  .rail { grid-template-columns: 1fr 1fr; }
  .rail::before { display: none; }
  .side-a, .side-b { margin-left: 0; transform: none; }
  .device-stage { min-height: 620px; }
  .desk { width: min(100%, 560px); top: 250px; }
  .pad { left: 12%; }
}
@media (max-width: 768px) {
  :root { --space: 48px; }
  .dock-nav, .dock-search, .dock > .glow-btn { display: none; }
  .dock-tools { display: flex; }
  .metric-grid, .matrix, .guard, .rail { grid-template-columns: 1fr 1fr; }
  .cell.big { grid-column: span 2; }
  .foot-links { justify-content: flex-start; margin-top: 12px; }
  .device-stage { min-height: 0; display: grid; gap: 12px; }
  .screen { position: relative; width: 100%; left: auto; right: auto; top: auto; }
  .scene { border-radius: 22px; }
}
@media (max-width: 576px) {
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric:last-child { grid-column: 1 / -1; }
  .guard, .rail, .matrix { grid-template-columns: 1fr; }
  .cell.big { grid-column: auto; }
  .hero-main, .form-card { padding: 18px; }
  .dock { border-radius: 18px; }
}
@media (max-width: 520px) {
  .time-read { margin-left: 0; width: 100%; }
  .brand { font-size: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* roulang page: category1 */
:root {
 --bg: #060A14;
 --raise: #0C1424;
 --panel: #101A2E;
 --blue: #3BA3FF;
 --blue-deep: #1E6FE0;
 --cyan: #67E8F9;
 --amber: #E6B35A;
 --text: #E7F0FA;
 --muted: #93A4BE;
 --glass: rgba(16, 28, 52, 0.58);
 --line: rgba(130, 186, 255, 0.22);
 --hair: rgba(103, 232, 249, 0.14);
 --shadow: 0 16px 40px rgba(2, 8, 20, 0.35);
 --radius: 18px;
 --dock: 999px;
 --ok: #8f3d4e;
 --space: 88px;
 --font: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
 --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Segoe UI Mono", monospace;
 color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 background:
  radial-gradient(880px 280px at 50% -40px, rgba(30, 111, 224, 0.16), transparent 70%),
  var(--bg);
 color: var(--text);
 font-family: var(--font);
 font-size: 16px;
 line-height: 1.75;
 text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto; }
button, input, select, textarea { font-family: inherit; font-size: 16px; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--cyan); }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(1.7rem, 3vw, 2.45rem); line-height: 1.28; font-weight: 700; letter-spacing: 0; }
h2 { font-size: clamp(1.2rem, 2vw, 1.55rem); line-height: 1.35; font-weight: 700; margin-bottom: 14px; }
h3 { font-size: 1.05rem; line-height: 1.45; font-weight: 700; color: var(--text); }
p { margin-bottom: 16px; }
.container { max-width: 1140px; }
.sub { color: var(--muted); }
.lead-copy { color: var(--muted); max-width: 72ch; margin-bottom: 0; }
.mono, .n99, .num { font-family: var(--mono); }
.n99 { color: var(--amber); font-weight: 700; }
.glass {
 background: var(--glass);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
}
.band { padding: 84px 0; position: relative; }
.band-a { background: transparent; }
.band-b { background: rgba(12, 20, 36, 0.72); }
.band + .band { border-top: 1px solid var(--hair); }
#filters.band {
 padding: 10px 0;
 position: sticky;
 top: 78px;
 z-index: 30;
 background: rgba(6, 10, 20, 0.9);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border-bottom: 1px solid var(--hair);
}
section { scroll-margin-top: 150px; }
.glow-btn, .ghost-btn, .icon-btn, .chip {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 min-height: 44px;
 padding: 0 18px;
 border-radius: var(--dock);
 border: 0;
 transition: transform .18s ease, filter .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
 white-space: nowrap;
 font-weight: 700;
}
.glow-btn {
 color: #061018;
 background: linear-gradient(100deg, var(--blue-deep), var(--blue) 58%, var(--cyan));
 box-shadow: 0 0 0 1px rgba(103, 232, 249, 0.35), 0 8px 24px rgba(59, 163, 255, 0.45);
}
.glow-btn:hover { color: #061018; filter: brightness(1.08); transform: translateY(-1px); }
.glow-btn:active { transform: translateY(0); filter: none; box-shadow: 0 0 0 1px rgba(103, 232, 249, 0.2), 0 3px 10px rgba(59, 163, 255, 0.25); }
.ghost-btn { color: var(--text); background: rgba(8, 16, 32, 0.45); border: 1px solid var(--line); }
.ghost-btn:hover { color: var(--text); border-color: rgba(103, 232, 249, 0.55); transform: translateY(-1px); }
.ghost-btn:active { transform: translateY(0); }
.icon-btn {
 width: 44px;
 padding: 0;
 color: var(--text);
 background: rgba(8, 16, 32, 0.45);
 border: 1px solid var(--line);
 font-weight: 700;
}
.icon-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.icon-btn[aria-expanded="true"] { border-color: var(--cyan); color: var(--cyan); }
a:focus-visible, button:focus-visible, input:focus-visible {
 outline: 2px solid var(--cyan);
 outline-offset: 2px;
}
.badge {
 display: inline-flex;
 align-items: center;
 min-height: 24px;
 padding: 0 8px;
 border-radius: 999px;
 font-size: 12px;
 font-weight: 500;
 letter-spacing: 0;
 border: 1px solid var(--line);
 color: var(--text);
 background: rgba(59, 163, 255, 0.12);
 line-height: 1;
}
.badge-hd { color: var(--cyan); border-color: rgba(103, 232, 249, 0.4); }
.badge-up { color: var(--amber); border-color: rgba(230, 179, 90, 0.45); background: rgba(230, 179, 90, 0.08); }
.badge-time { color: var(--muted); font-family: var(--mono); }
.brand { display: inline-flex; align-items: baseline; gap: 6px; font-weight: 700; font-size: 1.05rem; color: var(--text); margin-right: 6px; }
.brand:hover { color: var(--text); }
.dock-wrap {
 position: sticky;
 top: 12px;
 z-index: 50;
 display: flex;
 justify-content: center;
 padding: 0 12px;
 pointer-events: none;
}
.dock {
 pointer-events: auto;
 display: flex;
 align-items: center;
 gap: 8px;
 width: min(1080px, 100%);
 min-height: 64px;
 padding: 8px 10px 8px 16px;
 border-radius: 999px;
 background: rgba(12, 20, 36, 0.78);
 backdrop-filter: blur(16px);
 -webkit-backdrop-filter: blur(16px);
 border: 1px solid var(--line);
 box-shadow: var(--shadow);
}
.dock.is-tight { min-height: 56px; padding-top: 4px; padding-bottom: 4px; }
.dock-nav { display: flex; align-items: center; gap: 4px; }
.dock-nav a, .sheet-nav a {
 min-height: 44px;
 display: inline-flex;
 align-items: center;
 padding: 0 12px;
 border-radius: 999px;
 color: var(--muted);
 font-weight: 500;
}
.dock-nav a:hover, .sheet-nav a:hover { color: var(--text); background: rgba(59, 163, 255, 0.1); }
.dock-nav a.is-active, .sheet-nav a.is-active {
 color: var(--text);
 background: rgba(59, 163, 255, 0.16);
 box-shadow: inset 0 0 0 1px rgba(103, 232, 249, 0.28);
}
.dock-search { margin-left: auto; display: flex; }
.dock-search input, .sheet-search input {
 width: 100%;
 min-height: 44px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: rgba(6, 10, 20, 0.4);
 color: var(--text);
 padding: 10px 14px;
 outline: none;
 transition: border-color .18s ease, box-shadow .18s ease;
}
.dock-search input { width: 210px; }
.dock-search input:focus, .sheet-search input:focus {
 border-color: rgba(103, 232, 249, 0.7);
 box-shadow: 0 0 0 3px rgba(103, 232, 249, 0.15);
}
.dock-search input::placeholder, .sheet-search input::placeholder { color: var(--muted); }
.dock-tools { display: none; gap: 8px; margin-left: auto; }
.dock-sheet {
 pointer-events: auto;
 position: absolute;
 top: calc(100% + 8px);
 left: 50%;
 transform: translateX(-50%);
 width: min(440px, calc(100% - 8px));
 padding: 14px;
}
.dock-sheet[hidden] { display: none !important; }
.sheet-nav { display: grid; gap: 6px; margin: 10px 0; }
.sheet-nav a { border-radius: 12px; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.crumb a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); }
.crumb a:hover { color: var(--cyan); }
.crumb .sep { opacity: 0.6; }
.head-row { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.65fr); gap: 22px; align-items: end; }
.head-side { padding: 16px 18px; }
.head-side p { margin: 0; color: var(--muted); font-size: 14px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.filter-line { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filter-line h2 { margin: 0 8px 0 0; font-size: 1rem; }
.chip {
 color: var(--muted);
 background: rgba(8, 16, 32, 0.45);
 border: 1px solid var(--line);
 font-weight: 500;
}
.chip:hover { color: var(--text); border-color: rgba(103, 232, 249, 0.5); }
.chip.is-on { color: var(--text); border-color: rgba(103, 232, 249, 0.55); background: rgba(59, 163, 255, 0.16); }
.count-badge { margin-left: auto; }
.mix { display: grid; gap: 12px; }
.entry {
 color: var(--text);
 transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.entry:hover { color: var(--text); transform: translateY(-2px); border-color: rgba(103, 232, 249, 0.55); }
.entry:active { transform: translateY(0); }
.entry-lg { display: grid; grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1.18fr); gap: 16px; padding: 12px; align-items: center; }
.entry-row { display: grid; grid-template-columns: 148px minmax(0, 1fr) auto; gap: 14px; padding: 10px 12px; align-items: center; }
.entry h3 { margin: 0 0 8px; }
.clamp2 {
 display: -webkit-box;
 -webkit-line-clamp: 2;
 -webkit-box-orient: vertical;
 overflow: hidden;
}
.meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 0; min-height: 24px; }
.entry .sub { margin: 8px 0 0; font-size: 14px; }
.cover {
 position: relative;
 aspect-ratio: 16 / 9;
 border-radius: 14px;
 overflow: hidden;
 background: #101A2E;
 box-shadow: inset 0 0 0 1px rgba(130, 186, 255, 0.16);
}
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover::after {
 content: "";
 position: absolute;
 inset: 0;
 background:
  linear-gradient(180deg, rgba(6, 10, 20, 0) 42%, rgba(6, 10, 20, 0.78)),
  repeating-linear-gradient(180deg, transparent 0 3px, rgba(103, 232, 249, 0.04) 3px 4px);
 pointer-events: none;
}
.playhead {
 position: absolute;
 left: 12px;
 right: 12px;
 bottom: 10px;
 z-index: 1;
 height: 4px;
 border-radius: 999px;
 background: rgba(231, 240, 250, 0.28);
}
.playhead i {
 display: block;
 width: 28%;
 height: 100%;
 border-radius: inherit;
 background: var(--amber);
 box-shadow: 8px 0 0 0 rgba(230, 179, 90, 0.35);
}
.mini-cover { aspect-ratio: 16 / 10; }
.point-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(240px, 0.75fr); gap: 16px; }
.point-card { padding: 22px 22px 8px; }
.point-list { list-style: none; margin: 0; padding: 0 0 8px; }
.point-list li {
 display: grid;
 grid-template-columns: 88px minmax(0, 1fr);
 gap: 10px;
 padding: 12px 0;
 border-top: 1px solid var(--hair);
 color: var(--muted);
}
.point-list strong { color: var(--text); font-weight: 700; }
.group-jump { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.group-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr) minmax(0, 0.8fr); gap: 14px; }
.group-card { padding: 18px 18px 8px; min-height: 100%; }
.group-card h3 { margin-bottom: 8px; }
.dot {
 width: 8px;
 height: 8px;
 border-radius: 50%;
 background: var(--cyan);
 box-shadow: 0 0 0 4px rgba(103, 232, 249, 0.14);
 display: inline-block;
 margin-right: 6px;
}
.dot.amber { background: var(--amber); box-shadow: 0 0 0 4px rgba(230, 179, 90, 0.16); }
.track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 8px; }
.node {
 position: relative;
 padding: 18px 16px 8px;
 border-top: 1px solid rgba(103, 232, 249, 0.45);
}
.node::before {
 content: "";
 position: absolute;
 left: 16px;
 top: -5px;
 width: 9px;
 height: 9px;
 border-radius: 50%;
 background: var(--amber);
 box-shadow: 0 0 0 4px rgba(6, 10, 20, 0.9);
}
.node h3 { font-size: 1rem; margin-bottom: 6px; }
.node p { color: var(--muted); font-size: 14px; margin: 0; }
.news-wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 14px; }
.news-main { padding: 18px; display: grid; gap: 8px; align-content: end; min-height: 240px; position: relative; }
.news-main .cover { position: absolute; inset: 0; border-radius: inherit; }
.news-main .cover::after { background: linear-gradient(180deg, rgba(6,10,20,.15), rgba(6,10,20,.88)); }
.news-main .txt { position: relative; z-index: 1; }
.news-side { display: grid; gap: 10px; }
.news-row { padding: 14px 16px; display: grid; gap: 6px; }
.news-row:hover, .news-main:hover { transform: translateY(-2px); border-color: rgba(103, 232, 249, 0.5); }
.news-row, .news-main { transition: transform .18s ease, border-color .18s ease; color: var(--text); }
.more-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.qa { display: grid; gap: 8px; }
.qa-item { padding: 4px 14px; }
.qa-item button {
 width: 100%;
 min-height: 44px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 12px;
 text-align: left;
 background: transparent;
 border: 0;
 color: var(--text);
 font-weight: 700;
 padding: 8px 0;
}
.qa-item button span[aria-hidden] { color: var(--cyan); font-family: var(--mono); }
.qa-item .ans { color: var(--muted); padding: 0 0 12px; margin: 0; }
.qa-item .ans[hidden] { display: none; }
.empty-note { display: none; margin-top: 12px; color: var(--muted); }
.empty-note.show { display: block; }
.site-foot {
 background: #050812;
 border-top: 1px solid var(--hair);
 padding: 48px 0 28px;
 color: var(--muted);
}
.site-foot .brand { margin-bottom: 10px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.foot-links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); }
.foot-links a:hover { color: var(--cyan); }
.copy { margin: 22px 0 0; font-size: 13px; color: var(--muted); }
@media (max-width: 991.98px) {
 .head-row, .point-grid, .group-grid, .news-wrap, .entry-lg { grid-template-columns: 1fr; }
 .track { grid-template-columns: 1fr 1fr; }
 .entry-row { grid-template-columns: 120px minmax(0, 1fr); }
 .entry-row .meta { grid-column: 1 / -1; }
}
@media (max-width: 767.98px) {
 .band { padding: 48px 0; }
 #filters.band { top: 70px; padding: 8px 0; }
 .dock-nav, .dock-search, .dock > .glow-btn { display: none; }
 .dock-tools { display: flex; }
 .dock { width: min(560px, 100%); padding-right: 8px; }
 .count-badge { margin-left: 0; }
 .entry-row { grid-template-columns: 1fr; }
 .point-list li { grid-template-columns: 1fr; gap: 2px; }
 .track { grid-template-columns: 1fr; }
 .head-side { display: none; }
}
@media (max-width: 575.98px) {
 .band { padding: 42px 0; }
 h1 { font-size: 1.55rem; }
 .filter-line h2 { width: 100%; }
 .chip { padding: 0 12px; }
 .dock-sheet { width: calc(100% - 4px); }
}

/* 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}