/* roulang page: index */
:root {
  --bg: #06101c;
  --bg-2: #0b1730;
  --bg-3: #10203f;
  --ink: #eef5ff;
  --muted: #a9bdd8;
  --faint: #7f95b5;
  --line: rgba(156, 196, 255, .22);
  --glass: rgba(12, 28, 58, .58);
  --glass-2: rgba(18, 40, 78, .72);
  --blue: #3c8dff;
  --blue-2: #69b2ff;
  --cyan: #37e1ff;
  --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
  --shadow: 0 18px 50px rgba(2, 8, 20, .38);
  --radius: 22px;
  --radius-sm: 14px;
  --space: 76px;
  --max: 1160px;
  --font: "Be Vietnam Pro", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
    radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
    var(--bg);
  line-height: 1.65;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
::selection { background: #1d6ad8; color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(6, 14, 28, .78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(160deg, #6ec2ff, #245bff);
  box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
  border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
  display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
  color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
  color: #fff; background: rgba(70, 146, 255, .18);
  box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 10px; opacity: .75; }
.dropdown {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; width: 280px; padding: 10px;
  border-radius: 16px; background: rgba(9, 20, 42, .94); border: 1px solid var(--line);
  box-shadow: var(--shadow); backdrop-filter: blur(16px);
}
.nav-item:hover .dropdown, .nav-item:focus-within .dropdown { display: grid; gap: 4px; }
.dropdown a {
  display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink);
}
.dropdown a span { color: var(--faint); font-size: 12.5px; font-weight: 500; }
.dropdown a:hover, .dropdown a:focus-visible { background: rgba(70, 146, 255, .16); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
  width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search button {
  height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
  color: #fff; background: #1d4f9e; font-weight: 700;
}
.nav-search button:hover { background: #2a66c9; }
.hero {
  position: relative; min-height: 760px; display: flex; align-items: flex-end;
  padding: 54px 0 34px; isolation: isolate; overflow: hidden;
  background:
    linear-gradient(100deg, rgba(4,9,18,.92) 8%, rgba(5,12,26,.78) 46%, rgba(5,10,20,.42) 100%),
    url("/assets/images/2823ff5aec0e4482.jpg") center 30% / cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 140px;
  background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: end; width: min(var(--max), calc(100% - 40px)); }
.crumb { display: flex; gap: 8px; align-items: center; list-style: none; padding: 0; margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.crumb a { color: var(--cyan); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
  backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
h1 { margin: 0 0 14px; font-size: clamp(34px, 5vw, 62px); line-height: 1.08; letter-spacing: -.035em; max-width: 14ch; }
.lead { margin: 0 0 22px; max-width: 62ch; color: #d5e4f8; font-size: 17px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
  padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.poster { margin: 0; position: relative; border-radius: 28px; overflow: hidden; min-height: 460px; box-shadow: var(--shadow), 0 0 0 1px rgba(180, 220, 255, .25); }
.poster img { width: 100%; height: 520px; object-fit: cover; }
.poster-cap {
  position: absolute; left: 14px; right: 14px; bottom: 14px; padding: 14px 16px; border-radius: 16px;
  background: rgba(6, 14, 30, .62); border: 1px solid rgba(255,255,255,.14); backdrop-filter: blur(12px);
}
.poster-cap strong { display: block; font-size: 16px; }
.poster-cap span { color: var(--muted); font-size: 13px; }
.heat-row { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 26px; }
.heat-item { padding: 12px 14px; border-radius: 16px; background: rgba(7,16,34,.55); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.heat-item b { display: block; font-size: 18px; }
.heat-item span { color: var(--muted); font-size: 13px; }
main { display: block; }
.section { padding: var(--space) 0; position: relative; }
.section.alt { background: linear-gradient(180deg, rgba(14, 30, 60, .55), rgba(8, 16, 32, .2)); border-block: 1px solid rgba(140, 180, 230, .08); }
.section.ink { background: #07101d; }
.section-head { max-width: 740px; margin-bottom: 26px; }
.section-head h2, .cta-copy h2 { margin: 0 0 10px; font-size: clamp(28px, 3vw, 40px); line-height: 1.18; letter-spacing: -.03em; }
.kicker { margin: 0 0 8px; color: var(--cyan); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.section-head p, .split p, .plan p, .story p, .release p, .quote p { color: var(--muted); }
.persona-list { display: grid; gap: 12px; }
.persona, .glass, .plan, .story, .quote, .release, .sla-item, .rank-row, .bento a, .heat-item, .promise, .board li {
  background: linear-gradient(180deg, rgba(18, 40, 78, .66), rgba(8, 18, 38, .5));
  border: 1px solid var(--line); box-shadow: inset 0 1px 0 rgba(255,255,255,.06), var(--shadow);
  backdrop-filter: blur(14px);
}
.persona { display: grid; grid-template-columns: 92px 1fr auto; gap: 16px; align-items: center; padding: 16px 18px; border-radius: var(--radius); }
.persona img { width: 92px; height: 72px; object-fit: cover; border-radius: 12px; }
.persona h3, .plan h3, .story h3, .release h3, .bento h3 { margin: 0 0 4px; font-size: 18px; }
.persona p, .bento p, .promise p, .sla-item p { margin: 0; color: var(--muted); }
.tag { color: var(--cyan); font-weight: 800; font-size: 13px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.split article { padding: 26px; border-radius: 26px; }
.split-fit { background: linear-gradient(180deg, rgba(24, 74, 64, .45), rgba(8, 24, 36, .72)); border: 1px solid rgba(120, 230, 190, .28); }
.split-skip { background: linear-gradient(180deg, rgba(78, 32, 48, .42), rgba(20, 12, 24, .72)); border: 1px solid rgba(255, 160, 170, .24); }
.split h2 { margin-top: 0; }
.split ul, .check-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.split li, .check-list li { padding-left: 26px; position: relative; color: #e7f0ff; }
.split li::before, .check-list li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; color: var(--cyan); }
.split-skip li::before { content: "\f00d"; color: #ffb4be; }
.plan-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.plan { padding: 22px; border-radius: 26px; }
.plan-featured { transform: translateY(-12px); border-color: rgba(120, 200, 255, .65); box-shadow: var(--glow); }
.plan .price { font-size: 28px; font-weight: 800; margin: 8px 0; }
.plan ul { margin: 0; padding-left: 18px; color: var(--muted); }
.bento { display: grid; grid-template-columns: 1.35fr 1fr 1fr; grid-auto-rows: 168px; gap: 14px; }
.bento a { display: flex; flex-direction: column; justify-content: flex-end; padding: 18px; border-radius: 22px; min-height: 168px; transition: transform .2s ease, border-color .2s ease; }
.bento a:first-child { grid-row: span 2; background:
  linear-gradient(180deg, rgba(6,12,24,.1), rgba(6,12,24,.82)),
  url("/assets/images/e5fa2fb8871cf2b2.webp") center/cover; }
.bento a:nth-child(4) { grid-column: span 2; }
.bento a:hover { transform: translateY(-4px); border-color: rgba(150, 210, 255, .7); }
.bento .kicker { margin-bottom: 4px; }
.timeline { list-style: none; margin: 0; padding: 0 0 0 8px; border-left: 2px solid rgba(120, 186, 255, .35); display: grid; gap: 8px; }
.timeline li { position: relative; padding: 8px 0 18px 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -8px; top: 16px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 14px var(--cyan);
}
.timeline strong { display: block; }
.media-split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.media-split img { width: 100%; height: 420px; object-fit: cover; border-radius: 28px; box-shadow: var(--shadow); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { padding: 18px; border-radius: 22px; background: rgba(10, 24, 48, .72); border: 1px solid var(--line); position: relative; }
.step em { display: block; font-style: normal; color: var(--cyan); font-weight: 800; margin-bottom: 8px; }
.metric-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; overflow: hidden; border-radius: 24px;
  background: rgba(130, 180, 255, .18); border: 1px solid var(--line);
}
.metric { padding: 22px; background: #091526; }
.metric b { display: block; font-size: 32px; letter-spacing: -.04em; color: #fff; }
.metric span { color: var(--muted); }
.quotes { display: grid; grid-template-columns: 1.2fr .8fr; gap: 14px; }
.quote { padding: 22px; border-radius: 24px; margin: 0; }
.quote-lg { background:
  linear-gradient(180deg, rgba(7,16,32,.2), rgba(7,16,32,.82)),
  url("/assets/images/5c35585c75a1f61a.webp") center/cover; min-height: 280px; display: flex; flex-direction: column; justify-content: flex-end; }
.quote-side { display: grid; gap: 14px; }
.quote footer { color: #fff; font-weight: 700; }
.rail { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
.story { min-width: 280px; scroll-snap-align: start; border-radius: 22px; overflow: hidden; }
.story img { height: 170px; width: 100%; object-fit: cover; }
.story div { padding: 14px 16px 18px; }
.more-link { display: inline-flex; margin-top: 16px; color: var(--cyan); font-weight: 800; }
.more-link:hover { text-shadow: 0 0 12px rgba(55, 225, 255, .8); }
.promise-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.photo-section {
  background:
    linear-gradient(180deg, rgba(5,10,20,.88), rgba(5,10,20,.9)),
    url("/assets/images/c8d80d787b1305ba.jpg") center/cover;
}
.promise { padding: 18px; border-radius: 20px; }
.promise i { color: var(--cyan); font-size: 22px; }
.invite { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.invite-main, .board { padding: 22px; border-radius: 24px; }
.bars { display: grid; gap: 14px; margin-top: 16px; }
.bars span { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 6px; }
.bar { height: 10px; border-radius: 99px; background: rgba(255,255,255,.08); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #2f74f0, #3de4ff); box-shadow: 0 0 12px rgba(61, 228, 255, .7); }
.board ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.board li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; border-radius: 12px; box-shadow: none; }
.rank-list { display: grid; gap: 8px; }
.rank-row { display: grid; grid-template-columns: 52px 1fr auto; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 16px; box-shadow: none; }
.rank-row b { color: var(--cyan); }
.trend { color: #9cffd8; font-weight: 800; font-size: 13px; }
.sla { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.sla-item { padding: 20px; border-radius: 22px; }
.sla-item strong { display: block; font-size: 22px; margin-bottom: 6px; }
.releases { display: grid; gap: 12px; }
.release { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 18px; border-radius: 20px; }
.cta-band {
  padding: 28px 0 80px;
  background:
    linear-gradient(100deg, rgba(5,10,20,.88), rgba(10, 30, 68, .78)),
    url("/assets/images/9262f1f847af7d40.jpg") center/cover;
}
.cta-inner { display: flex; justify-content: space-between; gap: 24px; align-items: center; padding: 28px; border-radius: 28px; }
.site-footer { padding: 42px 0 28px; border-top: 1px solid var(--line); background: #050b14; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 22px; }
.foot-col h2 { font-size: 16px; margin: 0 0 10px; }
.foot-col a, .foot-col p { color: var(--muted); }
.foot-col a { display: block; padding: 4px 0; }
.foot-col a:hover { color: #fff; }
.legal { margin: 22px 0 0; color: var(--faint); font-size: 13px; }
@media (max-width: 1024px) {
  .nav-burger { display: block; }
  .nav-panel {
    display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    padding: 12px 16px 18px; background: rgba(6, 14, 28, .97); border-bottom: 1px solid var(--line); max-height: 78vh; overflow: auto;
  }
  .nav-toggle:checked ~ .nav-panel { display: flex; }
  .dropdown { position: static; width: auto; display: grid; box-shadow: none; background: transparent; border: 0; padding: 0 0 8px 12px; }
  .nav-search { margin: 8px 0 0; }
  .nav-search input { flex: 1; width: auto; }
  .hero-grid, .media-split, .quotes, .invite, .split, .plan-board, .steps, .metric-band, .promise-bar, .sla, .foot-grid { grid-template-columns: 1fr 1fr; }
  .steps, .metric-band, .promise-bar, .sla { grid-template-columns: 1fr 1fr; }
  .bento { grid-template-columns: 1fr 1fr; grid-auto-rows: auto; }
  .bento a:first-child, .bento a:nth-child(4) { grid-row: auto; grid-column: auto; }
  .plan-featured { transform: none; }
  .poster img, .media-split img { height: 360px; }
}
@media (max-width: 768px) {
  :root { --space: 56px; }
  .hero { min-height: 0; padding-top: 36px; }
  .hero-grid, .media-split, .quotes, .invite, .split, .plan-board, .steps, .metric-band, .promise-bar, .sla, .foot-grid, .heat-row, .persona, .release { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  h1 { max-width: none; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .poster { min-height: 0; }
}
@media (max-width: 520px) {
  .container, .hero-grid { width: min(var(--max), calc(100% - 28px)); }
  .header-inner { min-height: 66px; }
  .logo span:last-child { font-size: 14px; }
  .lead { font-size: 15.5px; }
  .btn { width: 100%; }
  .poster img, .media-split img { height: 240px; }
  .section-head h2 { font-size: 28px; }
  .rank-row { grid-template-columns: 36px 1fr; }
  .trend { grid-column: 2; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* roulang page: category1 */
:root {
  --bg: #06101c;
  --bg-2: #0b1730;
  --bg-3: #10203f;
  --ink: #eef5ff;
  --muted: #a9bdd8;
  --faint: #7f95b5;
  --line: rgba(156, 196, 255, .22);
  --glass: rgba(12, 28, 58, .58);
  --glass-2: rgba(18, 40, 78, .72);
  --blue: #3c8dff;
  --blue-2: #69b2ff;
  --cyan: #37e1ff;
  --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
  --shadow: 0 18px 50px rgba(2, 8, 20, .38);
  --radius: 22px;
  --radius-sm: 14px;
  --space: 76px;
  --max: 1160px;
  --font: "Be Vietnam Pro", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
    radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
    var(--bg);
  line-height: 1.65;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
p { margin: 0 0 14px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.03em; margin: 0 0 12px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(6, 14, 28, .78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(160deg, #6ec2ff, #245bff);
  box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
  display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
  border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
  content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
  display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
  color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
  color: #fff; background: rgba(70, 146, 255, .18);
  box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .8; }
.drop {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; min-width: 280px;
  padding: 8px; border-radius: 16px; background: rgba(10, 22, 46, .96);
  border: 1px solid var(--line); box-shadow: var(--shadow); z-index: 30;
}
.nav-item:hover .drop, .nav-item:focus-within .drop { display: grid; gap: 4px; }
.drop a {
  display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink); font-weight: 700;
}
.drop a span { color: var(--muted); font-size: 12.5px; font-weight: 500; }
.drop a:hover, .drop a:focus-visible { background: rgba(80, 150, 255, .14); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
  width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search input:focus { outline: 2px solid var(--cyan); border-color: transparent; }
.nav-search button {
  height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
  color: #fff; background: #1d4f9e; font-weight: 700; transition: .2s ease;
}
.nav-search button:hover, .nav-search button:focus-visible { background: #2a66c9; }
.page-hero { position: relative; padding: 42px 0 18px; overflow: hidden; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: end; width: min(var(--max), calc(100% - 40px)); }
.hero-grid.ratio-57 { grid-template-columns: 5fr 7fr; align-items: center; margin: 0 auto; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--faint); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--cyan); }
.crumb a:hover { text-decoration: underline; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
  backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.lead { margin: 0 0 22px; max-width: 62ch; color: #d5e4f8; font-size: 17px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
  padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.poster { position: relative; }
.poster img { width: 100%; height: 520px; object-fit: cover; }
.poster.offset {
  transform: rotate(-3deg) translate(12px, 8px);
  border-radius: 28px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow), 0 0 42px rgba(60, 141, 255, .32);
}
.poster.offset::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(4, 10, 22, .45));
  pointer-events: none;
}
.heat-row { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.heat-item { padding: 12px 14px; border-radius: 16px; background: rgba(7,16,34,.55); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.heat-item b { display: block; font-size: 18px; color: #fff; letter-spacing: -.02em; }
.heat-item span { color: var(--muted); font-size: 13px; }
.band { padding: var(--space) 0; }
.band-alt { background: linear-gradient(180deg, rgba(16, 32, 63, .55), rgba(6, 16, 28, 0)); }
.eyebrow { margin: 0 0 8px; color: var(--cyan); font-size: 13px; font-weight: 800; }
.toc-band { padding: 8px 0 10px; }
.toc-bar {
  display: flex; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  background: var(--glass); backdrop-filter: blur(12px);
}
.toc-bar a {
  flex: 1; padding: 14px 16px; border-right: 1px solid var(--line); display: grid; gap: 4px; min-width: 0;
  transition: background .2s ease;
}
.toc-bar a:last-child { border-right: 0; }
.toc-bar strong { font-size: 14px; }
.toc-bar span { color: var(--muted); font-size: 12.5px; }
.toc-bar a:hover, .toc-bar a:focus-visible { background: rgba(60, 130, 230, .18); }
.pain-grid, .sol-grid, .fit-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; }
.sol-grid { grid-template-columns: .92fr 1.08fr; }
.copy h2 { font-size: clamp(28px, 3vw, 40px); }
.copy p, .prose { color: #d5e4f8; }
.frame {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow);
}
.frame img { width: 100%; height: 420px; object-fit: cover; }
.issue-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; }
.issue-list li {
  display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start;
  padding: 14px 16px; border-radius: 16px; background: var(--glass); border: 1px solid var(--line);
  transition: border-color .2s ease, transform .2s ease;
}
.issue-list li:hover { border-color: rgba(150, 210, 255, .55); transform: translateX(4px); }
.issue-list b { display: block; }
.issue-list span { color: var(--muted); }
.idx { color: var(--cyan); font-weight: 800; font-size: 18px; min-width: 32px; }
.sol-list { display: grid; gap: 12px; }
.sol-item {
  padding: 16px 16px 14px; border-radius: 18px; background: rgba(8, 18, 40, .62);
  border: 1px solid var(--line); backdrop-filter: blur(10px);
}
.sol-item i { color: var(--cyan); margin-right: 8px; }
.sol-item h3 { font-size: 18px; margin-bottom: 6px; }
.sol-item p { margin: 0; color: var(--muted); }
.step-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: start; }
.step-rail { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.step-rail li { display: grid; grid-template-columns: 72px 1fr; gap: 8px; }
.step-rail .n {
  width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center;
  background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); font-weight: 800;
}
.step-rail .body { border-left: 1px solid var(--line); padding: 0 0 22px 16px; margin-left: -20px; }
.step-rail li:last-child .body { border-left-color: transparent; padding-bottom: 0; }
.step-rail h3 { font-size: 18px; }
.step-rail p { margin: 0; color: var(--muted); }
.metric-band {
  padding: var(--space) 0;
  background:
    linear-gradient(100deg, rgba(4, 10, 20, .88), rgba(8, 22, 48, .78)),
    url("/assets/images/c8d80d787b1305ba.jpg") center / cover no-repeat;
}
.metric-head { max-width: 680px; margin-bottom: 22px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.metric-grid article {
  padding: 18px; border-radius: var(--radius); background: rgba(8, 16, 34, .62);
  border: 1px solid var(--line); backdrop-filter: blur(8px); min-height: 150px;
}
.metric-grid strong {
  display: block; font-size: 34px; font-weight: 800; letter-spacing: -.04em;
  text-shadow: 0 0 18px rgba(80, 180, 255, .45);
}
.metric-grid span { color: var(--muted); display: block; margin-top: 6px; }
.quote-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 16px; }
.quote, .side-quote {
  margin: 0; padding: 22px; border-radius: var(--radius); background: var(--glass-2);
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.quote p, .side-quote p { font-size: 20px; line-height: 1.45; margin-bottom: 16px; }
.side-quote p { font-size: 16px; }
.who { color: var(--muted); font-style: normal; font-weight: 700; }
.stack { display: grid; gap: 16px; }
.tier { display: grid; gap: 8px; }
.tier-row {
  display: grid; grid-template-columns: 160px 1fr; gap: 12px; align-items: center;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.tier-row:last-child { border-bottom: 0; }
.tier-row b { color: #fff; }
.tier-row span { color: var(--muted); }
.note-head { display: flex; justify-content: space-between; gap: 16px; align-items: end; margin-bottom: 8px; }
.note { display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.note img { width: 180px; height: 120px; object-fit: cover; border-radius: 16px; }
.note h3 { font-size: 20px; margin-bottom: 6px; }
.note p { margin: 0; color: var(--muted); }
.keep {
  margin-top: 16px; padding: 16px 18px; border-radius: 18px; border: 1px dashed rgba(156, 196, 255, .4);
  background: rgba(10, 24, 48, .45);
}
.keep ul { margin: 8px 0 0; padding-left: 18px; color: #d5e4f8; }
.cta-band { padding: 10px 0 var(--space); }
.cta-panel {
  display: grid; grid-template-columns: 1.4fr .8fr; gap: 22px; align-items: center;
  padding: 28px; border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(32, 86, 180, .48), rgba(8, 18, 40, .88)),
    url("/assets/images/3ea81bb7d101902c.webp") right center / cover no-repeat;
  border: 1px solid var(--line); box-shadow: var(--glow);
}
.shift-list { display: grid; gap: 8px; }
.shift-list div {
  display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px;
  border-radius: 14px; background: rgba(4, 12, 28, .55); border: 1px solid var(--line);
}
.site-footer { border-top: 1px solid var(--line); padding: 42px 0 28px; background: #040a14; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 42ch; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col h2 { font-size: 16px; margin: 0 0 4px; }
.foot-col a { color: var(--muted); }
.foot-col a:hover, .foot-col a:focus-visible { color: var(--cyan); }
.legal { color: var(--faint); font-size: 13px; margin: 22px 0 0; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
@media (max-width: 1024px) {
  .nav-burger { display: inline-block; }
  .nav-panel {
    display: none; position: absolute; left: 0; right: 0; top: 76px;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(6, 14, 28, .97); border-bottom: 1px solid var(--line);
    padding: 10px 16px 18px; max-height: calc(100vh - 76px); overflow: auto;
  }
  .nav-toggle:checked ~ .nav-panel { display: flex; }
  .nav-item > a { border-radius: 12px; }
  .drop { position: static; display: grid; min-width: 0; background: transparent; border: 0; box-shadow: none; padding: 0 0 8px 8px; }
  .nav-search { margin: 8px 0 0; width: 100%; }
  .nav-search input { flex: 1; width: auto; }
  .hero-grid, .hero-grid.ratio-57, .pain-grid, .sol-grid, .step-layout, .fit-grid, .quote-grid, .cta-panel, .foot-grid {
    grid-template-columns: 1fr;
  }
  .poster.offset { transform: none; }
  .poster img, .frame img { height: 340px; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .toc-bar { flex-direction: column; }
  .toc-bar a { border-right: 0; border-bottom: 1px solid var(--line); }
  .toc-bar a:last-child { border-bottom: 0; }
}
@media (max-width: 768px) {
  :root { --space: 52px; }
  .container, .hero-grid { width: min(var(--max), calc(100% - 28px)); }
  .heat-row { grid-template-columns: 1fr; }
  .note, .tier-row { grid-template-columns: 1fr; }
  .note img { width: 100%; height: 180px; }
  .note-head { flex-direction: column; align-items: start; }
  h1 { font-size: 34px; }
}
@media (max-width: 520px) {
  .header-inner { min-height: 64px; }
  .nav-panel { top: 64px; }
  .logo span:last-child { font-size: 14px; }
  .poster img, .frame img { height: 220px; }
  .metric-grid { grid-template-columns: 1fr; }
  .hero-actions, .cta-actions { flex-direction: column; }
  .btn { width: 100%; }
  .step-rail li { grid-template-columns: 56px 1fr; }
  .lead { font-size: 16px; }
  .cta-panel { padding: 18px; }
  .shift-list div { flex-direction: column; }
}

/* roulang page: category2 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
/* roulang page: category-tai-may */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.12; letter-spacing: -.03em; margin-bottom: 14px; }
h2 { font-size: clamp(26px, 3vw, 36px); line-height: 1.22; letter-spacing: -.025em; margin: 0 0 12px; }
h3 { font-size: 20px; line-height: 1.35; margin: 0 0 8px; }
p { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; }
.sr-only {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
 clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .8; }
.drop {
 display: none; position: absolute; top: 100%; left: 0; z-index: 30; min-width: 280px; padding-top: 0;
}
.nav-item:hover .drop, .nav-item:focus-within .drop { display: grid; }
.drop a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink);
 background: rgba(10, 22, 46, .96); border: 1px solid var(--line); margin-top: -1px;
 font-weight: 700; font-size: 14px;
}
.drop a:first-child { border-radius: 16px 16px 0 0; margin-top: 0; }
.drop a:last-child { border-radius: 0 0 16px 16px; }
.drop a span { color: var(--muted); font-size: 12px; font-weight: 500; }
.drop a:hover, .drop a:focus-visible { background: rgba(32, 74, 146, .95); color: #fff; }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
 width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search button, .ask-form button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); font-weight: 700;
 box-shadow: var(--glow); transition: transform .2s ease, box-shadow .2s ease;
}
.nav-search button:hover, .ask-form button:hover { transform: translateY(-1px); box-shadow: 0 0 22px rgba(90, 186, 255, .7); }
.nav-search button:active, .ask-form button:active { transform: translateY(1px); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
 backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.lead { margin: 0 0 22px; max-width: 64ch; color: #d5e4f8; font-size: 17px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.page-hero {
 position: relative; padding: 54px 0 28px; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(105deg, rgba(4,10,20,.92) 6%, rgba(6,16,34,.82) 48%, rgba(6,14,30,.55) 100%),
  url("/assets/images/c8d80d787b1305ba.jpg") center 40% / cover no-repeat;
}
.page-hero::after {
 content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 90px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.hero-layout {
 position: relative; z-index: 1;
 display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: center;
}
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--faint); font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.crumb a { color: var(--cyan); }
.crumb a:hover { color: #fff; }
.install-card {
 border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
 background: var(--glass); box-shadow: var(--shadow); backdrop-filter: blur(16px);
}
.install-card img { width: 100%; height: 230px; object-fit: cover; }
.install-body { padding: 16px 16px 18px; display: grid; gap: 10px; }
.eyebrow { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin: 0; }
.mini-list { list-style: none; display: grid; gap: 8px; }
.mini-list li {
 display: flex; justify-content: space-between; gap: 12px; padding-bottom: 8px;
 border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px;
}
.mini-list strong { color: #fff; font-weight: 700; text-align: right; }
main { display: block; }
.section { padding: var(--space) 0; }
.section-alt { background: linear-gradient(180deg, rgba(16, 36, 74, .35), rgba(6, 16, 32, .2)); border-top: 1px solid rgba(156,196,255,.08); border-bottom: 1px solid rgba(156,196,255,.08); }
.toc-wrap {
 display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center;
 padding: 22px; border-radius: var(--radius); border: 1px solid var(--line);
 background: var(--glass-2); box-shadow: var(--shadow); backdrop-filter: blur(12px);
}
.toc-wrap p { color: var(--muted); max-width: 52ch; }
.toc { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.toc a {
 display: flex; align-items: center; justify-content: space-between; gap: 8px;
 min-height: 46px; padding: 8px 12px; border-radius: 12px; border: 1px solid var(--line);
 background: rgba(5, 14, 30, .45); color: #e7f1ff; font-weight: 700; font-size: 14px;
}
.toc a i { color: var(--cyan); }
.toc a:hover { border-color: rgba(150, 210, 255, .65); transform: translateY(-1px); }
.media-split { display: grid; grid-template-columns: .86fr 1.14fr; gap: 32px; align-items: center; }
.frame { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.frame img { width: 100%; height: 460px; object-fit: cover; }
.frame figcaption {
 position: absolute; left: 14px; right: 14px; bottom: 14px; padding: 12px 14px; border-radius: 14px;
 background: rgba(5, 12, 24, .72); border: 1px solid var(--line); backdrop-filter: blur(10px); color: #d7e6fb; font-size: 14px;
}
.kicker { color: var(--cyan); font-weight: 800; font-size: 13px; letter-spacing: .04em; margin-bottom: 8px; }
.copy p { color: var(--muted); margin-bottom: 14px; }
.spec { list-style: none; display: grid; gap: 10px; }
.spec li {
 display: grid; grid-template-columns: 148px 1fr; gap: 12px; align-items: start;
 padding: 12px 14px; border-radius: 14px; background: rgba(8, 20, 42, .55); border: 1px solid var(--line);
}
.spec b { color: #fff; }
.spec span { color: var(--muted); }
.note {
 margin-top: 14px; padding: 12px 14px; border-radius: 14px; color: #d5e7ff;
 background: rgba(64, 132, 255, .12); border: 1px solid rgba(140, 196, 255, .28);
}
.pack-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 18px; }
.pack-head p { color: var(--muted); max-width: 62ch; }
.pack-list { display: grid; gap: 14px; }
.pack {
 display: grid; grid-template-columns: 168px 1fr auto; gap: 18px; align-items: center;
 padding: 14px; border-radius: var(--radius); border: 1px solid var(--line);
 background: rgba(10, 24, 48, .62); box-shadow: var(--shadow); backdrop-filter: blur(12px);
}
.pack img { width: 168px; height: 124px; object-fit: cover; border-radius: 16px; }
.pack p { color: var(--muted); margin: 6px 0 8px; }
.pack ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.pack li { color: #d5e6ff; font-size: 13px; padding: 4px 8px; border-radius: 999px; background: rgba(255,255,255,.04); border: 1px solid var(--line); }
.pack-side { display: grid; justify-items: end; gap: 10px; min-width: 180px; }
.pack-side strong { font-size: 28px; letter-spacing: -.03em; }
.pack-side span { color: var(--faint); font-size: 13px; }
.step-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: start; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.step-no {
 width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; color: #fff; font-weight: 800;
 background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow);
}
.step p { color: var(--muted); }
.side-photo { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); position: sticky; top: 96px; }
.side-photo img { width: 100%; height: 520px; object-fit: cover; }
.side-photo div { padding: 16px; background: rgba(8, 18, 38, .88); }
.side-photo p { color: var(--muted); }
.perm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.perm {
 padding: 18px; border-radius: var(--radius); border: 1px solid var(--line);
 background: var(--glass); backdrop-filter: blur(12px); min-height: 180px;
}
.perm i { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 12px; color: #fff; background: rgba(60, 141, 255, .2); box-shadow: inset 0 0 0 1px rgba(140,196,255,.35); }
.perm p { color: var(--muted); }
.perm:nth-child(2) { background: linear-gradient(180deg, rgba(28, 62, 120, .72), rgba(10, 22, 44, .72)); }
.release {
 position: relative; overflow: hidden; border-radius: 0; padding: 72px 0;
 background:
  linear-gradient(180deg, rgba(4,10,22,.88), rgba(5,14,30,.9)),
  url("/assets/images/3ea81bb7d101902c.webp") center / cover no-repeat;
}
.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.metric {
 padding: 16px; border-radius: 18px; background: rgba(7, 16, 34, .62); border: 1px solid var(--line); backdrop-filter: blur(10px);
}
.metric b { display: block; font-size: 28px; letter-spacing: -.03em; color: #fff; }
.metric span { color: var(--muted); font-size: 14px; }
.version-list { margin-top: 18px; display: grid; gap: 8px; }
.version-list li { list-style: none; color: #d7e6fa; padding-left: 22px; position: relative; }
.version-list li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); position: absolute; left: 0; top: 9px; }
.faq details {
 border: 1px solid var(--line); border-radius: 16px; background: var(--glass);
 padding: 0 16px; margin-bottom: 10px; backdrop-filter: blur(10px);
}
.faq summary { cursor: pointer; min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-weight: 750; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--cyan); font-size: 22px; font-weight: 500; }
.faq details[open] summary::after { content: "–"; }
.faq details[open] { border-color: rgba(120, 186, 255, .55); box-shadow: var(--glow); }
.faq details p { color: var(--muted); padding-bottom: 14px; }
.cta-band { padding-bottom: 28px; }
.cta-grid {
 display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: start;
 padding: 22px; border-radius: 28px; border: 1px solid rgba(150, 205, 255, .4);
 background:
  radial-gradient(420px 180px at 90% 0%, rgba(55, 225, 255, .16), transparent 70%),
  rgba(10, 24, 50, .8);
 box-shadow: var(--glow);
}
.cta-grid > div > p { color: var(--muted); margin: 8px 0 16px; }
.ask-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 6px; }
.field.wide { grid-column: 1 / -1; }
.field span { font-size: 13px; color: #d5e4f7; font-weight: 700; }
.field input, .field select {
 width: 100%; height: 48px; border-radius: 14px; border: 1px solid var(--line);
 background: rgba(3, 10, 22, .55); padding: 0 12px; color: #fff;
}
.field input:focus, .field select:focus { border-color: rgba(120, 196, 255, .8); box-shadow: 0 0 0 3px rgba(55, 225, 255, .15); outline: none; }
.form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.form-actions small { color: var(--faint); }
.site-footer { margin-top: 10px; padding: 48px 0 28px; background: #040a14; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 42ch; margin-top: 12px; }
.foot-col { display: grid; align-content: start; gap: 8px; }
.foot-col h2 { font-size: 15px; margin: 0 0 6px; }
.foot-col a { color: var(--muted); }
.foot-col a:hover { color: #fff; }
.legal { color: var(--faint); font-size: 13px; margin-top: 22px; }
@media (max-width: 1180px) and (min-width: 1025px) {
 .nav-item > a { padding: 8px 7px; font-size: 13px; }
 .nav-search input { width: 116px; }
}
@media (max-width: 1024px) {
 .nav-burger { display: inline-block; }
 .nav-panel {
  display: none; position: absolute; left: 0; right: 0; top: 76px; flex-direction: column;
  align-items: stretch; gap: 4px; background: rgba(6, 14, 28, .97); padding: 12px 16px 18px;
  border-bottom: 1px solid var(--line); max-height: calc(100vh - 76px); overflow: auto;
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .nav-search { margin: 8px 0 0; }
 .nav-search input { flex: 1; width: auto; }
 .drop { position: static; display: grid; min-width: 0; padding: 4px 0 8px 10px; }
 .hero-layout, .toc-wrap, .media-split, .step-layout, .cta-grid, .foot-grid { grid-template-columns: 1fr; }
 .side-photo { position: static; }
 .side-photo img, .frame img { height: 320px; }
 .pack { grid-template-columns: 120px 1fr; }
 .pack-side { grid-column: 2; justify-items: start; }
 .metric-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
 :root { --space: 56px; }
 .pack, .perm-grid, .ask-form { grid-template-columns: 1fr; }
 .pack img { width: 100%; height: 180px; }
 .pack-side { grid-column: auto; }
 .spec li { grid-template-columns: 1fr; gap: 4px; }
 .toc { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
 .container { width: min(var(--max), calc(100% - 28px)); }
 h1 { font-size: 32px; }
 .hero-actions .btn, .pack-side .btn, .form-actions .btn { width: 100%; }
 .metric-row { grid-template-columns: 1fr; }
 .install-card img { height: 180px; }
 .mini-list li { flex-direction: column; gap: 2px; }
 .mini-list strong { text-align: left; }
 .header-inner { min-height: 68px; }
 .nav-panel { top: 68px; }
 .logo span:last-child { font-size: 14px; }
}

/* roulang page: category4 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
:root { --space: 56px; }
/* roulang page: category4 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; color: inherit; }
p { margin: 0 0 14px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.03em; margin: 0 0 12px; overflow-wrap: break-word; }
ul { margin: 0; padding: 0; }
.sr-only {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .8; }
.nav-sub {
 display: none; position: absolute; top: calc(100% + 10px); left: 0; min-width: 280px; z-index: 30;
 padding: 8px; border-radius: 16px; background: rgba(8, 20, 42, .96);
 border: 1px solid var(--line); box-shadow: var(--shadow);
}
.nav-item:hover .nav-sub, .nav-item:focus-within .nav-sub { display: grid; }
.nav-sub a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink);
 font-size: 14px; font-weight: 700;
}
.nav-sub a span { color: var(--muted); font-size: 12px; font-weight: 500; }
.nav-sub a:hover, .nav-sub a:focus-visible { background: rgba(80, 150, 255, .14); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
 width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search button, .ticket button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: #1d4f9e; font-weight: 700;
}
.nav-search button:hover { background: #2a66c9; }
.band {
 position: relative; min-height: 390px; display: flex; align-items: flex-end;
 padding: 34px 0 32px; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(100deg, rgba(4,9,18,.92) 6%, rgba(8,22,48,.78) 52%, rgba(8,18,40,.55) 100%),
  url("/assets/images/732f11823c40502f.webp") center 40% / cover no-repeat;
}
.band::after {
 content: ""; position: absolute; inset: auto 0 0 0; height: 90px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.band-wrap { position: relative; z-index: 1; width: min(var(--max), calc(100% - 40px)); }
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.crumb a { color: var(--cyan); }
.crumb a:hover { color: #fff; }
.band-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 28px; align-items: end; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
 backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.lead { margin: 0 0 22px; max-width: 64ch; color: #d5e4f8; font-size: 17px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.btn:focus-visible, .nav-search button:focus-visible, .ticket button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
a:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.fact-stack { display: grid; gap: 10px; }
.heat-item { padding: 12px 14px; border-radius: 16px; background: rgba(7,16,34,.55); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.heat-item span { color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.heat-item b { display: block; font-size: 18px; margin-top: 4px; }
main { padding-bottom: 10px; }
.sec { padding: var(--space) 0; }
.sec-alt {
 background:
  linear-gradient(180deg, rgba(16, 36, 74, .42), rgba(6, 16, 28, 0) 78%);
 border-top: 1px solid rgba(156, 196, 255, .08);
 border-bottom: 1px solid rgba(156, 196, 255, .08);
}
.eyebrow {
 display: inline-flex; align-items: center; gap: 8px; margin: 0 0 10px;
 color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
}
.sec h2 { font-size: clamp(28px, 3vw, 40px); max-width: 20ch; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: center; }
.shot {
 margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
 background: var(--glass); box-shadow: var(--shadow);
}
.shot img { width: 100%; height: 420px; object-fit: cover; }
.shot figcaption { padding: 12px 14px 14px; color: var(--muted); font-size: 13px; }
.offer-list { display: grid; gap: 12px; }
.offer-row {
 display: grid; grid-template-columns: 86px 1fr auto; gap: 14px; align-items: center;
 padding: 14px; border-radius: var(--radius-sm); background: var(--glass);
 border: 1px solid var(--line); backdrop-filter: blur(12px);
 transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.offer-row:hover { transform: translateY(-2px); border-color: rgba(120, 190, 255, .55); box-shadow: var(--glow); }
.offer-row strong { display: block; font-size: 16px; }
.offer-row p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.code {
 min-width: 74px; height: 64px; border-radius: 14px; display: grid; place-items: center;
 background: rgba(55, 225, 255, .08); color: var(--cyan); font-weight: 800; border: 1px solid var(--line);
}
.state { font-size: 12px; font-weight: 800; color: #d7ecff; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line); white-space: nowrap; }
.state.wait { color: #ffe7a3; }
.tier-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 28px; align-items: start; }
.tier-copy { position: sticky; top: 96px; }
.tier-list { display: grid; gap: 12px; }
.tier {
 display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 16px 16px 14px;
 border-radius: var(--radius); background: var(--glass-2); border: 1px solid var(--line);
}
.tier.glow { box-shadow: var(--glow); background: linear-gradient(180deg, rgba(36, 78, 150, .72), rgba(14, 32, 64, .8)); }
.tier h3 { margin: 8px 0 4px; font-size: 22px; }
.tier ul { list-style: none; display: grid; gap: 6px; color: var(--muted); font-size: 14px; }
.tier li { padding-left: 18px; position: relative; }
.tier li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); position: absolute; left: 0; top: .55em; box-shadow: 0 0 8px var(--cyan); }
.meter { height: 8px; border-radius: 99px; background: rgba(255,255,255,.08); overflow: hidden; margin-top: 10px; }
.meter span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--blue-2)); box-shadow: 0 0 12px rgba(55,225,255,.45); }
.refer-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 26px; align-items: center; }
.steps { list-style: none; display: grid; gap: 0; margin-top: 8px; }
.steps li {
 display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 14px 0;
 border-top: 1px solid var(--line);
}
.num {
 width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; font-weight: 800;
 background: rgba(60, 141, 255, .16); color: #fff; box-shadow: inset 0 0 0 1px rgba(140,196,255,.35);
}
.steps h3 { font-size: 17px; margin: 0 0 4px; }
.steps p { margin: 0; color: var(--muted); font-size: 14.5px; }
.ledger { display: grid; gap: 0; margin-top: 8px; }
.ledger article {
 display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 18px 0;
 border-bottom: 1px solid var(--line);
}
.ledger h3 { font-size: 18px; margin: 0 0 4px; }
.ledger p { margin: 0; color: var(--muted); }
.tag {
 display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 999px;
 background: rgba(55, 225, 255, .1); color: #c9f6ff; font-size: 12px; font-weight: 800;
}
.rule-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.rule {
 padding: 18px; border-radius: var(--radius); background: rgba(8, 20, 42, .62);
 border: 1px solid var(--line); min-height: 100%;
}
.rule i { color: var(--cyan); margin-bottom: 8px; font-size: 18px; }
.rule h3 { font-size: 18px; }
.rule p { margin: 0; color: var(--muted); }
.week { display: grid; gap: 10px; }
.week-row {
 display: grid; grid-template-columns: 140px 1.1fr .9fr; gap: 16px; align-items: center;
 padding: 16px 18px; border-radius: 18px; background: rgba(10, 24, 48, .55); border: 1px solid var(--line);
}
.week-row b { font-size: 15px; }
.week-row span { color: var(--muted); font-size: 14px; }
.week-visual { margin-top: 16px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); max-height: 240px; }
.week-visual img { width: 100%; height: 240px; object-fit: cover; }
.quote-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 14px; }
.quote {
 margin: 0; padding: 22px; border-radius: var(--radius); background: var(--glass);
 border: 1px solid var(--line); box-shadow: var(--shadow);
}
.quote p { font-size: 18px; margin-bottom: 16px; }
.quote footer { color: var(--muted); font-size: 14px; font-weight: 700; }
.side-note {
 padding: 22px; border-radius: var(--radius); border: 1px solid var(--line);
 background:
  linear-gradient(180deg, rgba(28, 70, 140, .45), rgba(8, 18, 36, .7));
 display: flex; flex-direction: column; justify-content: flex-end; min-height: 100%;
}
.side-note strong { font-size: 40px; letter-spacing: -.04em; display: block; }
.faq { display: grid; gap: 10px; }
.faq-item {
 border-radius: 16px; border: 1px solid var(--line); background: rgba(8, 20, 42, .62); overflow: hidden;
}
.faq-item summary {
 display: flex; align-items: center; gap: 12px; padding: 16px 18px; cursor: pointer; font-weight: 800; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; margin-left: auto; color: var(--cyan); font-size: 22px; font-weight: 500; }
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] { border-color: rgba(120, 190, 255, .5); box-shadow: 0 10px 30px rgba(20, 60, 130, .25); }
.faq-item p { margin: 0; padding: 0 18px 16px; color: var(--muted); max-width: 78ch; }
.cta {
 position: relative; overflow: hidden; border-radius: 28px; border: 1px solid var(--line);
 background:
  linear-gradient(100deg, rgba(5,12,26,.92), rgba(12,32,68,.78)),
  url("/assets/images/3ea81bb7d101902c.webp") center / cover no-repeat;
 box-shadow: var(--shadow);
}
.cta-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 22px; padding: 28px; align-items: start; }
.ticket { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ticket label { display: grid; gap: 6px; font-size: 13px; font-weight: 700; color: #d5e6ff; }
.ticket label.full { grid-column: 1 / -1; }
.ticket input, .ticket textarea, .ticket select {
 width: 100%; min-height: 46px; border-radius: 12px; border: 1px solid var(--line);
 background: rgba(4, 10, 22, .55); padding: 10px 12px; color: #fff;
}
.ticket textarea { min-height: 96px; resize: vertical; }
.ticket input:focus, .ticket textarea:focus, .ticket select:focus { border-color: rgba(120, 200, 255, .8); box-shadow: 0 0 0 3px rgba(55, 225, 255, .15); }
.ticket .btn { grid-column: 1 / -1; width: fit-content; border: 0; }
.fine { grid-column: 1 / -1; margin: 0; color: var(--faint); font-size: 12.5px; }
.site-footer { border-top: 1px solid var(--line); background: #040a14; margin-top: 20px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 28px; padding: 42px 0 18px; }
.foot-brand p { color: var(--muted); max-width: 42ch; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col h2 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); margin: 0 0 6px; }
.foot-col a { color: var(--muted); font-weight: 600; }
.foot-col a:hover { color: #fff; }
.legal { color: var(--faint); font-size: 13px; padding: 8px 0 28px; }
@media (max-width: 1024px) {
 .nav-burger { display: inline-block; }
 .nav-panel {
  display: none; position: absolute; left: 0; right: 0; top: 76px;
  flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 16px 18px;
  background: rgba(6,14,28,.97); border-bottom: 1px solid var(--line);
  max-height: calc(100vh - 76px); overflow: auto; box-shadow: var(--shadow);
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .nav-item > a { border-radius: 12px; }
 .nav-sub { position: static; display: grid; min-width: 0; margin: 2px 0 8px 8px; box-shadow: none; background: rgba(255,255,255,.03); }
 .nav-search { margin: 8px 0 0; width: 100%; }
 .nav-search input { flex: 1; width: auto; }
 .band-grid, .split, .tier-layout, .refer-grid, .quote-grid, .cta-grid { grid-template-columns: 1fr; }
 .tier-copy { position: static; }
 .tier { grid-template-columns: 1fr; }
 .week-row { grid-template-columns: 1fr; gap: 4px; }
 .shot img { height: 300px; }
}
@media (max-width: 768px) {
 :root { --space: 48px; }
 .offer-row, .ledger article, .rule-grid, .foot-grid, .ticket { grid-template-columns: 1fr; }
 .state { justify-self: start; }
 .sec h2 { max-width: none; }
 .band { min-height: 0; align-items: center; }
 .quote p { font-size: 16px; }
}
@media (max-width: 520px) {
 .container, .band-wrap { width: min(var(--max), calc(100% - 28px)); }
 .header-inner { min-height: 68px; }
 .nav-panel { top: 68px; }
 .logo span:last-child { font-size: 14px; }
 .lead { font-size: 15.5px; }
 .hero-actions .btn, .cta-actions .btn, .ticket .btn { width: 100%; }
 .shot img, .week-visual img { height: 210px; }
 .side-note strong { font-size: 32px; }
 .heat-item b { font-size: 16px; }
}

/* roulang page: category3 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
/* roulang page: category3 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
button { cursor: pointer; }
::selection { background: #245bff; color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.sr-only {
 position: absolute !important;
 width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255, 255, 255, .03); position: relative;
}
.nav-burger > span:first-child,
.nav-burger > span:first-child::before,
.nav-burger > span:first-child::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger > span:first-child { top: 22px; }
.nav-burger > span:first-child::before { top: -7px; }
.nav-burger > span:first-child::after { top: 7px; }
.nav-toggle:checked + .nav-burger > span:first-child { background: transparent; }
.nav-toggle:checked + .nav-burger > span:first-child::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger > span:first-child::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .8; }
.drop {
 position: absolute; top: calc(100% + 10px); left: 0; min-width: 286px; display: none;
 padding: 8px; border-radius: 16px; background: rgba(8, 18, 38, .96);
 border: 1px solid var(--line); box-shadow: var(--shadow); z-index: 30;
}
.drop::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; }
.nav-item:hover > .drop, .nav-item:focus-within > .drop { display: grid; gap: 4px; }
.nav-item:nth-child(7) > .drop { left: auto; right: 0; }
.drop a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink); font-weight: 700;
}
.drop a span { display: block; color: var(--muted); font-size: 12.5px; font-weight: 500; line-height: 1.45; }
.drop a:hover, .drop a:focus-visible { background: rgba(80, 150, 255, .16); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
 width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255, 255, 255, .04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search input:focus { border-color: rgba(120, 190, 255, .8); outline: none; box-shadow: 0 0 0 3px rgba(60, 141, 255, .25); }
.nav-search button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: #1d4f9e; font-weight: 700; transition: background .2s ease;
}
.nav-search button:hover, .nav-search button:focus-visible { background: #2a66c9; }
.badge-row, .hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.badge-row { gap: 8px; margin-bottom: 14px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8, 18, 38, .55); color: #d7e8ff;
 font-size: 12.5px; font-weight: 700; backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.lead { margin: 0 0 22px; max-width: 64ch; color: #d5e4f8; font-size: 17px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8, 18, 36, .45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.play-ico {
 width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
 background: #fff; color: #12315f; box-shadow: 0 0 0 0 rgba(255, 255, 255, .45); animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
 0% { box-shadow: 0 0 0 0 rgba(255, 255, 255, .38); }
 100% { box-shadow: 0 0 0 12px rgba(255, 255, 255, 0); }
}
main > section { padding: var(--space) 0; }
.page-hero {
 position: relative; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(100deg, rgba(4, 9, 18, .93) 6%, rgba(5, 14, 30, .78) 48%, rgba(5, 12, 24, .5) 100%),
  url("/assets/images/c8d80d787b1305ba.jpg") center 42% / cover no-repeat;
}
main > .page-hero { padding: 58px 0 46px; }
.page-hero::after {
 content: ""; position: absolute; inset: auto 0 0 0; height: 90px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.hero-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 1.12fr .88fr; gap: 34px; align-items: center; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--cyan); font-weight: 700; }
.crumb a:hover { text-decoration: underline; }
h1 { margin: 0 0 14px; font-size: clamp(34px, 4.6vw, 56px); line-height: 1.12; letter-spacing: -.035em; }
h2 { margin: 0 0 12px; font-size: clamp(26px, 3vw, 36px); line-height: 1.22; letter-spacing: -.03em; }
h3 { margin: 0 0 6px; font-size: 18px; line-height: 1.35; }
.kicker { margin: 0 0 8px; color: var(--cyan); font-weight: 800; font-size: 13px; letter-spacing: .04em; }
.toc { display: flex; gap: 8px; overflow: auto; margin-top: 22px; padding-bottom: 4px; scrollbar-width: thin; }
.toc a {
 white-space: nowrap; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(7, 16, 34, .55); color: #d7e8ff; font-size: 13px; font-weight: 700;
}
.toc a:hover, .toc a:focus-visible { border-color: rgba(150, 210, 255, .75); color: #fff; }
.glass-log, .incident, .quote, .news-row, .lock-card, .stat {
 border: 1px solid var(--line); background: var(--glass); box-shadow: var(--shadow); backdrop-filter: blur(16px);
}
.glass-log { border-radius: var(--radius); padding: 18px; }
.log-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 12px; }
.log-top p { margin: 0; color: var(--muted); font-size: 13px; }
.glass-log ul, .check, .incident-list, .meter-list, .news-list { list-style: none; margin: 0; padding: 0; }
.glass-log ul { display: grid; gap: 10px; }
.glass-log li {
 display: grid; grid-template-columns: 14px 1fr; gap: 10px; align-items: start;
 padding: 12px; border-radius: 14px; background: rgba(5, 14, 30, .45); border: 1px solid rgba(156, 196, 255, .14);
}
.glass-log b { display: block; }
.glass-log span, .stat span, .fit-row p, .incident p, .news-row p, .quote p { color: var(--muted); }
.dot { width: 10px; height: 10px; margin-top: 7px; border-radius: 50%; display: block; }
.dot.ok { background: #3ee0a2; box-shadow: 0 0 10px #3ee0a2; }
.dot.wait { background: #ffc14d; box-shadow: 0 0 10px #ffc14d; }
.dot.lock { background: #ff5d73; box-shadow: 0 0 10px #ff5d73; }
.section-head { max-width: 70ch; margin-bottom: 22px; }
.section-head p { margin: 0; color: var(--muted); }
.pain-grid, .solve-grid, .cta-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.pain-grid { grid-template-columns: .82fr 1.18fr; align-items: start; }
.incident-list { display: grid; gap: 12px; }
.incident { border-radius: 18px; padding: 16px 16px 16px 18px; transition: border-color .2s ease, transform .2s ease; }
.incident:hover { border-color: rgba(150, 210, 255, .7); transform: translateX(4px); }
.incident p { margin: 0; }
.band { background: rgba(11, 23, 48, .55); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.shot { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.shot img { width: 100%; height: 100%; min-height: 340px; object-fit: cover; }
.check { display: grid; gap: 10px; margin-top: 16px; }
.check li { display: flex; gap: 10px; align-items: flex-start; color: #d7e7fb; }
.check i { color: var(--cyan); margin-top: 4px; }
.split-role { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.split-role div { padding: 14px; border-radius: 16px; border: 1px solid var(--line); background: rgba(6, 16, 34, .45); }
.split-role div:last-child { background: rgba(72, 18, 36, .35); border-color: rgba(255, 130, 150, .28); }
.split-role p { margin: 6px 0 0; color: var(--muted); }
.timeline { display: grid; gap: 0; max-width: 860px; }
.step { display: grid; grid-template-columns: 74px 1fr; gap: 8px; position: relative; padding-bottom: 18px; }
.step:not(:last-child)::before {
 content: ""; position: absolute; left: 25px; top: 54px; bottom: 0; width: 2px;
 background: linear-gradient(var(--blue-2), rgba(55, 225, 255, .05));
}
.n {
 width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; font-weight: 800;
 background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow);
}
.step p { margin: 0; color: var(--muted); }
.results-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 20px; }
.results-head p { margin: 0; max-width: 46ch; color: var(--muted); }
.stat-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat { border-radius: 18px; padding: 18px; }
.stat strong { display: block; font-size: clamp(28px, 3vw, 40px); letter-spacing: -.04em; line-height: 1.1; margin-bottom: 8px; }
.voice-grid { display: grid; grid-template-columns: 1.35fr .75fr; gap: 14px; }
.voice-side { display: grid; gap: 14px; }
.quote { margin: 0; border-radius: 22px; padding: 22px; }
.quote.main { min-height: 100%; background: linear-gradient(180deg, rgba(22, 48, 92, .78), rgba(10, 22, 44, .72)); }
.quote p { margin: 0 0 16px; font-size: 18px; color: #e7f1ff; }
.quote.main p { font-size: 24px; line-height: 1.45; }
.quote cite { display: block; font-style: normal; font-weight: 800; }
.quote small { color: var(--faint); }
.fit-list { display: grid; }
.fit-row { display: grid; grid-template-columns: 240px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.fit-row:first-child { border-top: 1px solid var(--line); }
.fit-row p { margin: 0; }
.news-list { display: grid; gap: 12px; }
.news-row {
 display: grid; grid-template-columns: 180px 1fr; gap: 16px; align-items: center;
 padding: 12px; border-radius: 18px; transition: border-color .2s ease, transform .2s ease;
}
.news-row:hover { border-color: rgba(150, 210, 255, .7); transform: translateY(-2px); }
.news-row img { width: 100%; height: 118px; object-fit: cover; border-radius: 12px; }
.news-row p { margin: 0; }
.more-row { margin-top: 14px; }
.text-link { color: var(--cyan); font-weight: 800; }
.text-link:hover { color: #fff; }
.meter-list { display: grid; gap: 14px; }
.meter { padding: 4px 0 10px; border-bottom: 1px solid var(--line); }
.meter div { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.meter b { color: #fff; }
.meter i {
 display: block; height: 8px; width: var(--w); border-radius: 99px;
 background: linear-gradient(90deg, var(--cyan), var(--blue)); box-shadow: 0 0 12px rgba(55, 225, 255, .4);
}
.cta-band {
 background:
  linear-gradient(100deg, rgba(4, 10, 20, .92), rgba(8, 22, 48, .84)),
  url("/assets/images/732f11823c40502f.webp") center / cover no-repeat;
}
.lock-card { border-radius: var(--radius); padding: 18px; }
.lock-form { display: grid; gap: 12px; }
.lock-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 700; color: #d7e7ff; }
.lock-form input, .lock-form textarea {
 width: 100%; border-radius: 12px; border: 1px solid var(--line);
 background: rgba(255, 255, 255, .04); color: #fff; padding: 12px 14px; min-height: 46px;
}
.lock-form textarea { min-height: 110px; resize: vertical; }
.lock-form input:focus, .lock-form textarea:focus { outline: 2px solid rgba(55, 225, 255, .75); border-color: transparent; }
.form-note { margin: 0; color: var(--faint); font-size: 13px; }
.reassure { display: grid; gap: 10px; margin-top: 18px; }
.reassure li { display: flex; gap: 10px; align-items: flex-start; list-style: none; color: #d5e4f8; }
.site-footer { border-top: 1px solid var(--line); padding: 42px 0 22px; background: #040b16; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .7fr .7fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 46ch; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col h2 { font-size: 14px; letter-spacing: .04em; text-transform: uppercase; color: #d5e6ff; margin: 0 0 6px; }
.foot-col a { color: var(--muted); }
.foot-col a:hover, .foot-col a:focus-visible { color: #fff; }
.legal { color: var(--faint); font-size: 13px; border-top: 1px solid var(--line); margin: 22px 0 0; padding-top: 16px; }
dialog {
 width: min(760px, calc(100% - 28px)); padding: 0; color: var(--ink);
 border: 1px solid var(--line); border-radius: var(--radius); background: rgba(8, 18, 38, .96); box-shadow: var(--shadow);
}
dialog:not([open]) { display: none; }
dialog::backdrop { background: rgba(2, 6, 14, .74); }
.walk-grid { display: grid; grid-template-columns: .86fr 1.14fr; }
.walk-grid img { width: 100%; height: 100%; min-height: 280px; object-fit: cover; }
.walk-copy { padding: 22px; }
.walk-copy ol { margin: 12px 0 18px; padding-left: 18px; color: var(--muted); }
.walk-copy li + li { margin-top: 8px; }
@media (max-width: 1100px) {
 .nav-burger { display: inline-grid; place-items: center; margin-left: auto; }
 .nav-panel {
  display: none; position: absolute; top: 76px; left: 0; right: 0; z-index: 50;
  flex-direction: column; align-items: stretch; gap: 4px; margin: 0;
  padding: 12px 16px 18px; background: rgba(6, 14, 28, .97);
  border-bottom: 1px solid var(--line); max-height: calc(100vh - 76px); overflow: auto;
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .drop, .nav-item:hover > .drop, .nav-item:focus-within > .drop {
  position: static; display: grid; min-width: 0; margin: 2px 0 6px 8px;
  padding: 0; background: transparent; border: 0; box-shadow: none;
 }
 .drop::before { display: none; }
 .nav-search { width: 100%; margin: 8px 0 0; }
 .nav-search input { flex: 1; width: auto; }
}
@media (max-width: 1024px) {
 .hero-layout, .pain-grid, .solve-grid, .cta-grid, .voice-grid { grid-template-columns: 1fr; }
 .stat-band { grid-template-columns: repeat(2, 1fr); }
 .shot img { min-height: 240px; }
}
@media (max-width: 768px) {
 :root { --space: 56px; }
 .fit-row, .news-row, .results-head, .foot-grid, .walk-grid { grid-template-columns: 1fr; }
 .quote.main p { font-size: 20px; }
 h1 { font-size: 34px; }
 .page-hero { background-position: center top; }
}
@media (max-width: 520px) {
 .container { width: min(var(--max), calc(100% - 28px)); }
 .stat-band, .split-role { grid-template-columns: 1fr; }
 .hero-actions .btn, .cta-actions .btn, .lock-form .btn { width: 100%; }
 .news-row img, .walk-grid img { height: 190px; min-height: 190px; }
 .step { grid-template-columns: 60px 1fr; }
 .header-inner { min-height: 68px; }
 .nav-panel { top: 68px; }
}
@media (prefers-reduced-motion: reduce) {
 *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category5 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
/* roulang page: ho-tro */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; }
::selection { background: #2d6ef0; color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.sr-only {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease; white-space: nowrap;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .85; }
.drop {
 display: none; position: absolute; top: 100%; left: 0; z-index: 30; min-width: 280px;
 padding: 8px; border-radius: 16px; background: rgba(8, 18, 40, .96);
 border: 1px solid var(--line); box-shadow: var(--shadow);
}
.nav-item:hover .drop, .nav-item:focus-within .drop { display: grid; gap: 4px; }
.drop a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink); font-weight: 700;
}
.drop a span { color: var(--muted); font-size: 12px; font-weight: 500; line-height: 1.45; }
.drop a:hover, .drop a:focus-visible { background: rgba(80, 150, 255, .14); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
 width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: #1d4f9e; font-weight: 700; transition: background .2s ease;
}
.nav-search button:hover { background: #2a66c9; }
.nav-search button:active { transform: translateY(1px); }
.hero {
 position: relative; min-height: 760px; display: flex; align-items: flex-end;
 padding: 54px 0 34px; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(100deg, rgba(4,9,18,.92) 8%, rgba(5,12,26,.78) 46%, rgba(5,10,20,.42) 100%),
  url("/assets/images/2823ff5aec0e4482.jpg") center 30% / cover no-repeat;
}
.hero::after {
 content: ""; position: absolute; inset: auto 0 0 0; height: 140px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.hero-grid {
 position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr;
 gap: 36px; align-items: end; width: min(var(--max), calc(100% - 40px)); margin: 0 auto;
}
.hero-support {
 min-height: 0; align-items: center; padding: 46px 0 58px;
 background:
  linear-gradient(105deg, rgba(4,9,18,.94) 8%, rgba(5,12,26,.84) 46%, rgba(5,12,24,.58) 100%),
  url("/assets/images/c8d80d787b1305ba.jpg") center 42% / cover no-repeat;
}
.hero-support::after { height: 90px; }
.hero-support .hero-grid { align-items: center; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--cyan); font-weight: 700; }
.crumb a:hover { color: #fff; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
 backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
h1 { margin: 0 0 14px; font-size: clamp(34px, 5vw, 58px); line-height: 1.12; letter-spacing: -.035em; }
.lead { margin: 0 0 22px; max-width: 62ch; color: #d5e4f8; font-size: 17px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.btn-ghost:active { transform: translateY(1px); }
.poster img { width: 100%; height: 520px; object-fit: cover; }
.heat-row { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 26px; }
.heat-item { padding: 12px 14px; border-radius: 16px; background: rgba(7,16,34,.55); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.heat-item b { display: block; font-size: 18px; color: #fff; }
.heat-item span { color: var(--muted); font-size: 13px; }
.shift-board {
 position: relative; z-index: 1;
 background: var(--glass-2); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); backdrop-filter: blur(16px); padding: 18px 18px 8px;
}
.shift-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 8px; }
.shift-head h2 { margin: 0; font-size: 20px; letter-spacing: -.02em; }
.shift-row {
 display: flex; justify-content: space-between; gap: 12px; align-items: baseline;
 padding: 12px 0; border-top: 1px solid var(--line);
}
.shift-row span { color: var(--muted); font-size: 14px; }
.shift-row b { font-size: 15px; text-align: right; }
.shift-row a { color: var(--cyan); font-weight: 800; }
.shift-row a:hover { color: #fff; }
.band { padding: var(--space) 0; position: relative; }
.band.alt {
 background: linear-gradient(180deg, rgba(16, 36, 72, .42), rgba(6, 16, 28, 0));
 border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.eyebrow { margin: 0 0 8px; color: var(--cyan); font-weight: 800; font-size: 13px; }
.band h2, .panel-copy h2 { margin: 0 0 10px; font-size: clamp(26px, 3vw, 36px); line-height: 1.2; letter-spacing: -.03em; }
.sub { margin: 0; color: var(--muted); max-width: 68ch; }
.topic-strip { padding-top: 28px; padding-bottom: 10px; }
.topic-row { display: flex; gap: 10px; overflow-x: auto; padding: 6px 0 14px; scroll-snap-type: x mandatory; }
.topic-row a {
 scroll-snap-align: start; flex: 0 0 auto; min-width: 180px; padding: 12px 14px; border-radius: 16px;
 background: rgba(10, 24, 48, .72); border: 1px solid var(--line); backdrop-filter: blur(10px);
 transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.topic-row a strong { display: block; font-size: 14px; }
.topic-row a span { display: block; color: var(--faint); font-size: 12px; margin-top: 2px; }
.topic-row a:hover { transform: translateY(-2px); border-color: rgba(120, 190, 255, .7); box-shadow: var(--glow); }
.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: start; }
.split.flip { grid-template-columns: 1.05fr .95fr; align-items: center; }
.case-list { display: grid; gap: 10px; }
.case-row {
 display: grid; grid-template-columns: 46px 1fr auto; gap: 12px; align-items: center;
 padding: 14px; border-radius: 18px; background: var(--glass); border: 1px solid var(--line);
 backdrop-filter: blur(12px); transition: border-color .2s ease, transform .2s ease;
}
.case-row:hover { transform: translateY(-2px); border-color: rgba(130, 196, 255, .55); }
.case-ico {
 width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
 background: rgba(60, 141, 255, .16); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(140, 198, 255, .25);
}
.case-row h3 { margin: 0 0 2px; font-size: 16px; }
.case-row p { margin: 0; color: var(--muted); font-size: 14px; }
.tag {
 display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 999px;
 background: rgba(55, 225, 255, .1); color: #b7f4ff; font-size: 12px; font-weight: 800; white-space: nowrap;
}
.shot {
 border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); position: relative;
}
.shot img { width: 100%; height: 420px; object-fit: cover; }
.shot figcaption {
 position: absolute; left: 14px; right: 14px; bottom: 14px; padding: 12px 14px; border-radius: 14px;
 background: rgba(5, 12, 24, .72); border: 1px solid var(--line); backdrop-filter: blur(10px); color: #d7e7ff; font-size: 14px;
}
.check-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.check-list li {
 display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start;
 padding: 12px 12px; border-radius: 14px; background: rgba(8, 20, 42, .45); border: 1px solid var(--line);
}
.check-list i { color: var(--cyan); margin-top: 3px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 22px; }
.step {
 position: relative; padding: 18px 16px 16px; border-radius: var(--radius-sm);
 background: var(--glass); border: 1px solid var(--line); min-height: 210px;
}
.step:last-child { border-color: rgba(120, 200, 255, .65); box-shadow: var(--glow); background: rgba(20, 48, 96, .55); }
.step em { display: block; font-style: normal; color: var(--cyan); font-weight: 800; font-size: 13px; margin-bottom: 8px; }
.step h3 { margin: 0 0 8px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 14.5px; }
.signal-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.stat-line { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat {
 padding: 18px; border-radius: 18px; background: rgba(7, 18, 38, .62); border: 1px solid var(--line); backdrop-filter: blur(10px);
}
.stat b { display: block; font-size: 32px; letter-spacing: -.04em; color: #fff; text-shadow: 0 0 18px rgba(80, 180, 255, .45); }
.stat span { color: var(--muted); font-size: 14px; }
.quote-stack { display: grid; gap: 12px; }
.quote {
 margin: 0; padding: 18px; border-radius: 18px; background: var(--glass-2); border: 1px solid var(--line);
 border-left: 3px solid var(--cyan);
}
.quote p { margin: 0 0 10px; }
.quote cite { color: var(--faint); font-style: normal; font-size: 13px; font-weight: 700; }
.rank-list { display: grid; gap: 12px; margin-top: 18px; }
.rank {
 display: grid; grid-template-columns: 200px 170px 1fr; gap: 16px; align-items: center;
 padding: 16px 18px; border-radius: 18px; background: rgba(10, 24, 48, .66); border: 1px solid var(--line);
}
.rank strong { font-size: 18px; }
.rank .when { color: #d7f6ff; font-weight: 800; }
.rank p { margin: 0; color: var(--muted); }
.rank.gold { box-shadow: var(--glow); background: linear-gradient(90deg, rgba(28, 70, 140, .72), rgba(10, 24, 48, .7)); }
.note-list { display: grid; gap: 12px; margin-top: 18px; }
.note {
 display: grid; grid-template-columns: 188px 1fr; gap: 16px; padding: 10px; border-radius: 18px;
 background: var(--glass); border: 1px solid var(--line); transition: transform .2s ease, border-color .2s ease;
}
.note:hover { transform: translateY(-2px); border-color: rgba(130, 196, 255, .5); }
.note img { width: 100%; height: 124px; object-fit: cover; border-radius: 12px; }
.note h3 { margin: 4px 0 6px; font-size: 18px; }
.note p { margin: 0; color: var(--muted); }
.note time { color: var(--cyan); font-size: 12px; font-weight: 800; }
.faq-list { display: grid; gap: 10px; margin-top: 18px; }
.faq-item {
 border-radius: 16px; background: rgba(10, 22, 46, .7); border: 1px solid var(--line); overflow: hidden;
}
.faq-item summary {
 cursor: pointer; list-style: none; padding: 16px 18px; font-weight: 800; display: flex; justify-content: space-between; gap: 12px; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--cyan); font-size: 22px; line-height: 1; }
.faq-item[open] { border-color: rgba(120, 196, 255, .6); box-shadow: 0 10px 30px rgba(20, 70, 160, .25); }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 0; padding: 0 18px 16px; color: var(--muted); }
.cta-band {
 background:
  linear-gradient(100deg, rgba(4, 10, 20, .92), rgba(8, 22, 48, .88)),
  url("/assets/images/9262f1f847af7d40.jpg") center / cover no-repeat;
 border-top: 1px solid var(--line);
}
.cta-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
.form-card {
 padding: 18px; border-radius: var(--radius); background: rgba(8, 18, 38, .72);
 border: 1px solid var(--line); box-shadow: var(--shadow); backdrop-filter: blur(14px);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; color: #d5e6ff; }
.field input, .field textarea, .field select {
 width: 100%; border-radius: 12px; border: 1px solid var(--line); background: rgba(255,255,255,.04);
 color: #fff; padding: 12px 12px; min-height: 46px;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
 border-color: rgba(120, 196, 255, .85); box-shadow: 0 0 0 3px rgba(60, 141, 255, .25); outline: none;
}
.field select option { background: #0b1730; color: #fff; }
.hint { margin: 8px 0 0; color: var(--faint); font-size: 13px; }
.form-card .btn { margin-top: 12px; }
.site-footer {
 margin-top: 0; padding: 42px 0 28px; border-top: 1px solid var(--line); background: #040a14;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .7fr .7fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 46ch; }
.foot-col { display: grid; align-content: start; gap: 8px; }
.foot-col h2 { margin: 0 0 6px; font-size: 15px; }
.foot-col a { color: var(--muted); font-weight: 600; }
.foot-col a:hover { color: #fff; }
.legal { color: var(--faint); font-size: 13px; margin: 22px 0 0; }
@media (max-width: 1100px) {
 .nav-burger { display: inline-block; }
 .nav-panel {
  display: none; position: absolute; left: 0; right: 0; top: 76px; z-index: 35;
  flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 16px 18px;
  background: rgba(6, 14, 28, .97); border-bottom: 1px solid var(--line);
  max-height: calc(100vh - 76px); overflow: auto;
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .nav-item > a { border-radius: 12px; }
 .drop { position: static; display: grid; min-width: 0; padding: 0 0 8px 8px; background: transparent; border: 0; box-shadow: none; }
 .nav-search { margin: 8px 0 0; width: 100%; }
 .nav-search input { flex: 1; width: auto; }
}
@media (max-width: 1024px) {
 .hero-grid, .split, .split.flip, .signal-grid, .cta-grid { grid-template-columns: 1fr; }
 .steps { grid-template-columns: 1fr 1fr; }
 .shot img { height: 320px; }
 .hero-support { padding-top: 32px; }
}
@media (max-width: 768px) {
 .steps, .stat-line, .rank, .foot-grid, .form-grid, .note { grid-template-columns: 1fr; }
 .case-row { grid-template-columns: 46px 1fr; }
 .tag { grid-column: 2; justify-self: start; }
 .note img { height: 180px; }
 .band { padding: 52px 0; }
}
@media (max-width: 520px) {
 .container, .hero-grid { width: min(var(--max), calc(100% - 28px)); }
 .hero-actions .btn, .form-card .btn { width: 100%; }
 h1 { font-size: 32px; }
 .shift-row { flex-direction: column; align-items: flex-start; gap: 2px; }
 .shift-row b { text-align: left; }
 .stat b { font-size: 28px; }
 .header-inner { min-height: 68px; }
 .nav-panel { top: 68px; }
}

/* roulang page: category6 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
/* roulang page: category6 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
h1, h2, h3, p { margin: 0; }
::selection { background: #2d6ef0; color: #fff; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
 outline: 2px solid var(--cyan);
 outline-offset: 3px;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.sr-only {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .85; }
.drop {
 display: none; position: absolute; top: calc(100% + 10px); left: 0; min-width: 280px; z-index: 50;
 padding: 8px; border-radius: 16px; background: rgba(8, 20, 42, .96);
 border: 1px solid var(--line); box-shadow: var(--shadow);
}
.nav-item:hover .drop, .nav-item:focus-within .drop { display: grid; gap: 4px; }
.drop a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink);
 font-size: 14px; font-weight: 700;
}
.drop a span { color: var(--muted); font-size: 12.5px; font-weight: 500; line-height: 1.45; }
.drop a:hover, .drop a:focus-visible { background: rgba(80, 150, 255, .16); }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input {
 width: 168px; height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input::placeholder { color: #8ea4c4; }
.nav-search button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: #1d4f9e; font-weight: 700; transition: .2s ease;
}
.nav-search button:hover { background: #2a66c9; }
.nav-search button:active { transform: translateY(1px); }
.mast {
 position: relative; padding: 42px 0 28px; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(105deg, rgba(4,10,20,.93) 8%, rgba(6,16,34,.8) 46%, rgba(6,14,28,.5) 100%),
  url("/assets/images/3ea81bb7d101902c.webp") center 42% / cover no-repeat;
}
.mast::after {
 content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 90px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.mast-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.12fr .88fr; gap: 32px; align-items: stretch; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; color: var(--faint); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.crumb a { color: var(--cyan); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
 backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.mast h1 { font-size: clamp(36px, 5vw, 60px); line-height: 1.08; letter-spacing: -.035em; max-width: 14ch; margin-bottom: 14px; }
.lead { margin: 0 0 22px; max-width: 62ch; color: #d5e4f8; font-size: 17px; }
.byline { color: var(--faint); font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.pin-card {
 background: var(--glass-2); border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); overflow: hidden; backdrop-filter: blur(16px);
 display: flex; flex-direction: column; min-height: 100%;
}
.pin-card img { width: 100%; height: 248px; object-fit: cover; }
.pin-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; }
.pin-card h2 { font-size: 24px; line-height: 1.25; letter-spacing: -.02em; }
.pin-body p { color: var(--muted); }
.text-link { color: var(--cyan); font-weight: 800; margin-top: 4px; }
.text-link:hover { color: #fff; }
.band { padding: var(--space) 0; }
.band-alt {
 background: linear-gradient(180deg, rgba(16, 36, 72, .42), rgba(6, 16, 28, 0));
 border-top: 1px solid rgba(156, 196, 255, .08);
 border-bottom: 1px solid rgba(156, 196, 255, .08);
}
.section-head { max-width: 70ch; margin-bottom: 22px; }
.section-head h2, .split h2, .cta-copy h2 {
 font-size: clamp(26px, 3vw, 38px); line-height: 1.18; letter-spacing: -.03em; margin-bottom: 8px;
}
.section-head p, .split p, .muted { color: var(--muted); }
.toc-band { padding: 18px 0 6px; }
.toc-label { font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); margin-bottom: 12px; }
.toc { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.toc a {
 display: grid; gap: 4px; padding: 12px 12px 14px; border-radius: 16px;
 background: rgba(10, 24, 48, .55); border: 1px solid var(--line); min-height: 86px;
 transition: .2s ease;
}
.toc a b { color: var(--cyan); font-size: 12px; letter-spacing: .06em; }
.toc a span { font-weight: 700; line-height: 1.35; font-size: 14px; }
.toc a:hover { transform: translateY(-2px); border-color: rgba(150, 210, 255, .55); box-shadow: var(--glow); }
.story-grid { display: grid; grid-template-columns: 1.35fr .78fr; gap: 18px; align-items: stretch; }
.story-main {
 border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
 background: var(--glass); box-shadow: var(--shadow); backdrop-filter: blur(14px);
}
.story-main img { width: 100%; height: 320px; object-fit: cover; }
.story-copy { padding: 18px 20px 22px; }
.kicker { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.story-copy h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.2; margin: 8px 0 10px; letter-spacing: -.02em; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag {
 display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 999px;
 background: rgba(80, 160, 255, .12); color: #d5e7ff; font-size: 12px; font-weight: 700; border: 1px solid var(--line);
}
.side-list { display: grid; gap: 12px; }
.mini {
 display: grid; grid-template-columns: 108px 1fr; gap: 12px; align-items: center;
 padding: 10px; border-radius: 18px; background: rgba(10, 24, 48, .62);
 border: 1px solid var(--line); transition: .2s ease;
}
.mini:hover { border-color: rgba(150, 210, 255, .55); transform: translateY(-2px); }
.mini img { width: 108px; height: 84px; object-fit: cover; border-radius: 12px; }
.mini small { color: var(--cyan); font-weight: 800; font-size: 12px; }
.mini strong { display: block; font-size: 15px; line-height: 1.35; margin-top: 3px; }
.rail { position: relative; display: grid; }
.rail::before {
 content: ""; position: absolute; left: 4px; top: 8px; bottom: 8px; width: 1px;
 background: linear-gradient(var(--cyan), rgba(55, 225, 255, .05));
}
.rail-item {
 position: relative; display: grid; grid-template-columns: 150px 1fr; gap: 18px;
 padding: 18px 0 18px 28px;
}
.rail-item::before {
 content: ""; position: absolute; left: 0; top: 26px; width: 9px; height: 9px; border-radius: 50%;
 background: var(--cyan); box-shadow: 0 0 14px var(--cyan);
}
.rail-item time { color: var(--blue-2); font-weight: 800; }
.rail-item h3 { font-size: 20px; margin-bottom: 4px; }
.rail-item p { color: var(--muted); }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.shot {
 margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
 box-shadow: var(--shadow); min-height: 100%;
}
.shot img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.ticks { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.ticks li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; color: #d7e6f8; align-items: start; }
.ticks i { color: var(--cyan); margin-top: 4px; }
.wire { display: grid; gap: 12px; }
.wire article {
 display: grid; grid-template-columns: 190px 1fr 170px; gap: 16px; align-items: center;
 padding: 16px 18px; border-radius: 18px; background: rgba(10, 24, 48, .66);
 border: 1px solid var(--line); transition: .2s ease;
}
.wire article:hover { border-color: rgba(150, 210, 255, .5); box-shadow: var(--shadow); }
.wire time { color: var(--cyan); font-weight: 800; font-size: 14px; }
.wire h3 { font-size: 18px; margin-bottom: 4px; }
.wire p { color: var(--muted); }
.wire em { font-style: normal; justify-self: end; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.compare div {
 padding: 16px 18px; border-radius: 18px; background: rgba(8, 18, 38, .45); border: 1px solid var(--line);
}
.compare h3 { font-size: 16px; margin-bottom: 6px; }
.compare p { color: var(--muted); }
.rank { display: grid; gap: 12px; }
.rank-item {
 display: grid; grid-template-columns: 54px 104px 1fr auto; gap: 14px; align-items: center;
 padding: 12px; border-radius: 18px; border: 1px solid var(--line);
 background: rgba(12, 28, 58, .55); backdrop-filter: blur(12px);
}
.rank-item b { font-size: 22px; color: var(--cyan); text-align: center; }
.rank-item img { width: 104px; height: 74px; object-fit: cover; border-radius: 12px; }
.rank-item h3 { font-size: 17px; margin-bottom: 4px; }
.rank-item p { color: var(--muted); font-size: 14px; }
.metrics-band { padding: 10px 0 20px; }
.stat-grid { display: grid; grid-template-columns: 1.2fr repeat(4, 1fr); gap: 12px; }
.stat-lead, .stat {
 border-radius: 20px; border: 1px solid var(--line); background: rgba(10, 26, 54, .7);
 padding: 18px; box-shadow: var(--shadow); backdrop-filter: blur(12px);
}
.stat-lead h2 { font-size: 28px; line-height: 1.2; letter-spacing: -.02em; margin-bottom: 8px; }
.stat-lead p { color: var(--muted); }
.stat strong { display: block; font-size: 32px; letter-spacing: -.03em; color: #fff; text-shadow: 0 0 18px rgba(80, 180, 255, .45); }
.stat span { display: block; color: var(--muted); font-size: 14px; margin-top: 4px; }
.faq-list { display: grid; gap: 10px; }
.faq-list details {
 border: 1px solid var(--line); border-radius: 16px; background: var(--glass);
 backdrop-filter: blur(12px); padding: 0 16px; transition: .2s ease;
}
.faq-list summary {
 cursor: pointer; min-height: 60px; display: flex; align-items: center; justify-content: space-between;
 gap: 12px; font-weight: 750; font-weight: 700; list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--cyan); font-size: 22px; font-weight: 500; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list details[open] { border-color: rgba(120, 190, 255, .55); box-shadow: var(--glow); }
.faq-list details p { color: var(--muted); padding: 0 0 16px; max-width: 78ch; }
.cta-band {
 position: relative; padding: 64px 0; isolation: isolate;
 background:
  linear-gradient(100deg, rgba(5,12,28,.9), rgba(16, 52, 120, .72)),
  url("/assets/images/c8d80d787b1305ba.jpg") center / cover no-repeat;
}
.cta-panel {
 display: grid; grid-template-columns: 1.2fr .8fr; gap: 22px; align-items: center;
 padding: 26px; border-radius: 28px; border: 1px solid rgba(170, 210, 255, .35);
 background: rgba(7, 18, 40, .62); box-shadow: var(--glow); backdrop-filter: blur(16px);
}
.join { display: grid; gap: 8px; }
.join label { font-weight: 700; }
.join-row { display: flex; gap: 8px; }
.join input {
 flex: 1; min-width: 0; height: 48px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.05); color: #fff; padding: 0 16px;
}
.join input::placeholder { color: #8ea4c4; }
.site-footer {
 margin-top: 0; padding: 42px 0 22px; border-top: 1px solid var(--line); background: #040a14;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 46ch; margin-top: 12px; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col h2 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); margin: 0 0 6px; }
.foot-col a { color: var(--muted); font-weight: 600; }
.foot-col a:hover { color: #fff; }
.legal { color: var(--faint); font-size: 13px; margin-top: 22px; }
@media (max-width: 1100px) {
 .nav-burger { display: inline-block; }
 .nav-panel {
  display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 45;
  flex-direction: column; align-items: stretch; gap: 4px; padding: 12px;
  background: rgba(6, 14, 28, .97); border: 1px solid var(--line); border-radius: 18px;
  box-shadow: var(--shadow); max-height: calc(100vh - 92px); overflow: auto;
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .nav-item > a { border-radius: 12px; }
 .drop { position: static; display: grid; min-width: 0; margin: 2px 0 8px 8px; box-shadow: none; }
 .nav-search { margin: 8px 0 0; width: 100%; }
 .nav-search input { flex: 1; width: auto; }
}
@media (max-width: 1024px) {
 .mast-grid, .story-grid, .split, .cta-panel, .stat-grid { grid-template-columns: 1fr; }
 .toc { grid-template-columns: repeat(3, 1fr); }
 .wire article { grid-template-columns: 1fr; }
 .wire em { justify-self: start; }
 .shot img { min-height: 240px; height: 280px; }
 .stat-grid { grid-template-columns: 1fr 1fr; }
 .stat-lead { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
 :root { --space: 52px; }
 .foot-grid, .compare, .rail-item { grid-template-columns: 1fr; }
 .rank-item { grid-template-columns: 46px 1fr; }
 .rank-item img { width: 46px; height: 46px; grid-column: 1; grid-row: 1 / span 2; }
 .rank-item b { display: none; }
 .rank-item .tag { grid-column: 2; justify-self: start; }
 .toc { grid-template-columns: 1fr 1fr; }
 .mast h1 { max-width: none; }
}
@media (max-width: 520px) {
 .container { width: min(var(--max), calc(100% - 28px)); }
 .toc, .stat-grid, .mini, .join-row { grid-template-columns: 1fr; display: grid; }
 .join-row { display: grid; }
 .btn, .join button { width: 100%; }
 .pin-card img, .story-main img { height: 200px; }
 .mast { padding-top: 28px; }
 .header-inner { min-height: 68px; }
 .logo span:last-child { font-size: 14px; }
}

/* roulang page: category7 */
:root {
 --bg: #06101c;
 --bg-2: #0b1730;
 --bg-3: #10203f;
 --ink: #eef5ff;
 --muted: #a9bdd8;
 --faint: #7f95b5;
 --line: rgba(156, 196, 255, .22);
 --glass: rgba(12, 28, 58, .58);
 --glass-2: rgba(18, 40, 78, .72);
 --blue: #3c8dff;
 --blue-2: #69b2ff;
 --cyan: #37e1ff;
 --glow: 0 0 0 1px rgba(140, 198, 255, .35), 0 10px 34px rgba(48, 126, 246, .45);
 --shadow: 0 18px 50px rgba(2, 8, 20, .38);
 --radius: 22px;
 --radius-sm: 14px;
 --space: 76px;
 --max: 1160px;
 --font: "Be Vietnam Pro", sans-serif;
}
:root { --space: 56px; }
/* roulang page: phin-bn */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 85% -10%, rgba(48, 126, 246, .28), transparent 60%),
  radial-gradient(700px 380px at -10% 20%, rgba(34, 214, 255, .12), transparent 55%),
  var(--bg);
 line-height: 1.65;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
p { margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; margin: 0 0 12px; }
.sr-only {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .78);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
 box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 76px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.logo-mark {
 width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
 background: linear-gradient(160deg, #6ec2ff, #245bff);
 box-shadow: var(--glow); color: #fff; font-size: 18px;
}
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger {
 display: none; margin-left: auto; width: 46px; height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: rgba(255,255,255,.03); position: relative; cursor: pointer;
}
.nav-burger span, .nav-burger span::before, .nav-burger span::after {
 content: ""; position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px;
}
.nav-burger span { top: 22px; }
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }
.nav-toggle:checked + .nav-burger span { background: transparent; }
.nav-toggle:checked + .nav-burger span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-burger span::after { top: 0; transform: rotate(-45deg); }
.nav-panel { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-item > a {
 display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px;
 color: var(--muted); font-size: 14px; font-weight: 600; transition: .2s ease;
}
.nav-item > a:hover, .nav-item > a:focus-visible { color: #fff; background: rgba(80, 150, 255, .12); outline: none; }
.nav-item > a.active {
 color: #fff; background: rgba(70, 146, 255, .18);
 box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .38);
}
.caret { font-size: 11px; opacity: .8; }
.nav-drop {
 display: none; position: absolute; top: calc(100% + 8px); left: 0; min-width: 280px;
 padding: 8px; border-radius: 16px; background: rgba(8, 18, 40, .96);
 border: 1px solid var(--line); box-shadow: var(--shadow); z-index: 30;
}
.nav-item:hover .nav-drop, .nav-item:focus-within .nav-drop { display: grid; gap: 4px; }
.nav-drop a {
 display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; color: var(--ink); font-weight: 700; font-size: 14px;
}
.nav-drop a span { color: var(--muted); font-size: 12px; font-weight: 500; }
.nav-drop a:hover, .nav-drop a:focus-visible { background: rgba(80, 150, 255, .16); outline: none; }
.nav-search { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-search input, .version-search input {
 height: 40px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(255,255,255,.04); color: #fff; padding: 0 14px;
}
.nav-search input { width: 168px; }
.nav-search input::placeholder, .version-search input::placeholder { color: #8ea4c4; }
.nav-search input:focus, .version-search input:focus, button:focus-visible, a:focus-visible, summary:focus-visible {
 outline: 2px solid var(--cyan); outline-offset: 2px;
}
.nav-search button {
 height: 40px; border: 0; border-radius: 999px; padding: 0 14px; cursor: pointer;
 color: #fff; background: #1d4f9e; font-weight: 700; transition: .2s ease;
}
.nav-search button:hover { background: #2a66c9; }
.nav-search button:active { transform: translateY(1px); }
.badge-row, .quick-row { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px;
 border: 1px solid var(--line); background: rgba(8,18,38,.55); color: #d7e8ff; font-size: 12.5px; font-weight: 700;
 backdrop-filter: blur(10px);
}
.badge.hot { color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-color: transparent; box-shadow: 0 0 18px rgba(80, 196, 255, .55); }
.lead { margin: 0 0 18px; max-width: 64ch; color: #d5e4f8; font-size: 17px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
 padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow { color: #fff; background: linear-gradient(180deg, #67b6ff, #2d6ef0); box-shadow: var(--glow); }
.btn-glow:hover { transform: translateY(-2px); box-shadow: 0 0 26px rgba(90, 186, 255, .75); }
.btn-glow:active { transform: translateY(1px); }
.btn-ghost { color: #fff; background: rgba(8,18,36,.45); border-color: var(--line); backdrop-filter: blur(10px); }
.btn-ghost:hover { border-color: rgba(150, 210, 255, .7); background: rgba(28, 62, 112, .55); }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
main { display: block; }
.section { padding: var(--space) 0; }
.band { background: linear-gradient(180deg, rgba(11, 23, 48, .72), rgba(6, 16, 28, .2)); border-top: 1px solid rgba(156,196,255,.08); border-bottom: 1px solid rgba(156,196,255,.08); }
.kicker { color: var(--cyan); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
.page-hero {
 position: relative; padding: 42px 0 48px; isolation: isolate; overflow: hidden;
 background:
  linear-gradient(105deg, rgba(4,9,18,.92) 6%, rgba(6,14,30,.82) 48%, rgba(6,16,34,.55) 100%),
  url("/assets/images/9262f1f847af7d40.jpg") center 40% / cover no-repeat;
}
.page-hero::after {
 content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 90px;
 background: linear-gradient(transparent, var(--bg)); pointer-events: none;
}
.hero-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: stretch; }
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--cyan); font-weight: 700; }
.crumb a:hover { color: #fff; }
.page-hero h1 { font-size: clamp(32px, 4vw, 52px); max-width: 16ch; }
.version-search {
 display: flex; align-items: center; gap: 8px; padding: 8px; margin: 8px 0 14px;
 border-radius: 999px; background: var(--glass); border: 1px solid var(--line);
 backdrop-filter: blur(16px); box-shadow: var(--shadow);
}
.version-search label { padding-left: 12px; color: var(--muted); font-size: 13px; font-weight: 700; white-space: nowrap; }
.version-search input { flex: 1; min-width: 0; background: transparent; border: 0; height: 44px; }
.version-search .btn { min-height: 44px; }
.quick-row a {
 padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line);
 background: rgba(8,18,38,.5); color: #d7e8ff; font-size: 13px; font-weight: 700;
}
.quick-row a:hover { border-color: rgba(150,210,255,.7); color: #fff; background: rgba(40,86,160,.45); }
.release-card, .glass, .log-item, .spec-row, .patch-main, .patch-side article, .faq-item, .step {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.release-card { padding: 22px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; }
.release-card strong { display: block; font-size: 42px; letter-spacing: -.04em; }
.release-card span { color: var(--muted); }
.stat-line { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-line div { padding: 10px; border-radius: 14px; background: rgba(5,14,32,.45); border: 1px solid var(--line); }
.stat-line b { display: block; font-size: 18px; }
.stat-line span { color: var(--faint); font-size: 12px; }
.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: center; }
.split.reverse { grid-template-columns: 1.05fr .95fr; }
.frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); background: #081224; }
.frame img { width: 100%; height: 420px; object-fit: cover; }
.frame.short img { height: 280px; }
.frame figcaption { padding: 12px 14px 14px; color: var(--muted); font-size: 13px; }
.check { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 10px; }
.check li { display: flex; gap: 10px; align-items: flex-start; color: #d7e6fa; }
.check i { color: var(--cyan); margin-top: 4px; }
.section-head { display: flex; justify-content: space-between; gap: 18px; align-items: end; margin-bottom: 22px; }
.section-head p { max-width: 52ch; color: var(--muted); margin: 0; }
.timeline { display: grid; gap: 0; position: relative; }
.timeline::before {
 content: ""; position: absolute; left: 118px; top: 8px; bottom: 8px; width: 1px;
 background: linear-gradient(var(--cyan), rgba(60,141,255,.05));
}
.log-item { display: grid; grid-template-columns: 110px 18px 1fr; gap: 16px; padding: 16px 18px; margin: 0 0 12px; position: relative; }
.log-item time { color: var(--cyan); font-weight: 800; font-size: 13px; }
.dot { width: 12px; height: 12px; border-radius: 50%; margin-top: 6px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.log-item h3 { font-size: 18px; margin-bottom: 4px; }
.log-item p { margin: 0; color: var(--muted); }
.tag { display: inline-flex; margin-top: 8px; font-size: 12px; font-weight: 800; color: #042033; background: linear-gradient(90deg, #8ae7ff, #4ea2ff); border-radius: 999px; padding: 3px 8px; }
.spec-board { display: grid; gap: 12px; }
.spec-row { display: grid; grid-template-columns: 180px 1fr auto; gap: 16px; align-items: center; padding: 16px 18px; }
.spec-row h3 { font-size: 16px; margin: 0; }
.spec-row p { margin: 0; color: var(--muted); }
.spec-row em { font-style: normal; color: var(--cyan); font-weight: 800; font-size: 13px; }
.patch-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; }
.patch-main { overflow: hidden; display: grid; grid-template-columns: 1fr .9fr; }
.patch-main img { height: 100%; min-height: 280px; object-fit: cover; }
.patch-copy { padding: 22px; }
.patch-side { display: grid; gap: 16px; }
.patch-side article { padding: 18px 18px 16px; }
.patch-side h3, .patch-copy h3 { font-size: 20px; }
.muted { color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; counter-reset: step; }
.step { padding: 20px; position: relative; min-height: 180px; }
.step::before {
 counter-increment: step; content: counter(step, decimal-leading-zero);
 display: block; font-size: 28px; font-weight: 800; color: var(--cyan); margin-bottom: 8px;
}
.step h3 { font-size: 20px; }
.faq-list { display: grid; gap: 10px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary {
 cursor: pointer; list-style: none; padding: 16px 18px; font-weight: 800; display: flex; justify-content: space-between; gap: 12px; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--cyan); font-size: 22px; }
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-item p { margin: 0; padding: 14px 18px 16px; color: var(--muted); }
.cta-band {
 position: relative; overflow: hidden; border-radius: 28px; padding: 36px;
 background:
  linear-gradient(100deg, rgba(5,12,28,.88), rgba(18,48,110,.62)),
  url("/assets/images/732f11823c40502f.webp") center / cover no-repeat;
 border: 1px solid var(--line); box-shadow: var(--shadow);
 display: grid; grid-template-columns: 1.3fr .7fr; gap: 18px; align-items: center;
}
.cta-band h2 { font-size: clamp(28px, 3vw, 40px); max-width: 16ch; }
.cta-note { color: #d5e4f8; margin: 0; }
.site-footer { margin-top: 10px; padding: 42px 0 28px; background: #040a14; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 1.4fr .7fr .8fr; gap: 28px; }
.foot-brand p { color: var(--muted); max-width: 42ch; }
.foot-col { display: grid; align-content: start; gap: 8px; }
.foot-col h2 { margin: 0 0 6px; font-size: 15px; }
.foot-col a { color: var(--muted); }
.foot-col a:hover { color: #fff; }
.legal { color: var(--faint); font-size: 13px; margin-top: 22px; }
@media (max-width: 1024px) {
 .nav-burger { display: inline-block; }
 .nav-panel {
  display: none; position: absolute; left: 0; right: 0; top: 76px; flex-direction: column;
  align-items: stretch; padding: 12px 16px 18px; background: rgba(6,14,28,.97);
  border-bottom: 1px solid var(--line); max-height: calc(100vh - 76px); overflow: auto;
 }
 .nav-toggle:checked ~ .nav-panel { display: flex; }
 .nav-search { margin: 8px 0 0; width: 100%; }
 .nav-search input { flex: 1; width: auto; }
 .nav-drop { position: static; display: grid; min-width: 0; box-shadow: none; margin: 4px 0 8px 8px; background: transparent; }
 .hero-layout, .split, .split.reverse, .patch-grid, .patch-main, .cta-band, .foot-grid { grid-template-columns: 1fr; }
 .timeline::before { left: 18px; }
 .log-item { grid-template-columns: 18px 1fr; }
 .log-item time { grid-column: 2; }
 .steps { grid-template-columns: 1fr; }
 .frame img { height: 300px; }
}
@media (max-width: 768px) {
 :root { --space: 42px; }
 .container { width: min(var(--max), calc(100% - 28px)); }
 .spec-row, .stat-line { grid-template-columns: 1fr; }
 .version-search { flex-wrap: wrap; border-radius: 22px; }
 .version-search input { width: 100%; }
 .page-hero h1 { max-width: none; }
 .section-head { flex-direction: column; align-items: start; }
}
@media (max-width: 520px) {
 .logo span:last-child { font-size: 14px; }
 .header-inner { min-height: 68px; }
 .nav-panel { top: 68px; }
 .btn, .btn-ghost, .btn-glow { width: 100%; }
 .cta-actions, .hero-actions { width: 100%; }
 .release-card strong { font-size: 34px; }
 .legal { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 * { transition: none !important; }
}