/* roulang page: index */
:root {
  --bg: #06101c;
  --bg-2: #08172c;
  --bg-3: #0c2140;
  --ink: #e8f3ff;
  --muted: #9eb4cc;
  --line: rgba(140, 196, 255, .28);
  --cyan: #3de1ff;
  --blue: #3d8bff;
  --violet: #9b7bff;
  --glass: rgba(8, 20, 42, .68);
  --glass-2: rgba(12, 30, 60, .82);
  --radius: 22px;
  --shadow: 0 22px 50px rgba(2, 8, 20, .42);
  --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
  --ok: #3ee0a2;
  --warn: #ffc15a;
  --hot: #ff6b8a;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
    radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
    var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
::selection { background: #2f7bff; color: #fff; }
.container { max-width: 1140px; }
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 12, 24, .82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(130, 190, 255, .18);
}
.head-bar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  font-weight: 800; color: #041018;
  background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
  box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
  width: 46px; height: 46px; border-radius: 14px;
  border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
  display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
  color: #d5e4f5; font-weight: 600; font-size: .92rem;
  padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
  color: #041018;
  background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.band { padding: 4.6rem 0; position: relative; }
.band-a { background: rgba(7, 18, 36, .92); }
.band-b { background: linear-gradient(180deg, rgba(10, 28, 56, .55), rgba(6, 16, 32, .2)); }
.band-c { background: #07111f; }
.band h2 { font-size: clamp(1.45rem, 2.3vw, 2.05rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.25; margin: 0 0 .7rem; }
.band-intro { color: var(--muted); max-width: 760px; margin-bottom: 1.5rem; }
.kicker { color: var(--cyan); font-weight: 700; font-size: .82rem; margin-bottom: .45rem; }
.hero-stage { position: relative; min-height: 760px; padding: 4.2rem 0 3.4rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 10, 22, .72), rgba(4, 10, 22, .9)),
    radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.hero-stage .container { position: relative; z-index: 2; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .4rem; }
h1 { font-size: clamp(2rem, 4vw, 3.35rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.18; margin: 0 0 1rem; max-width: 920px; }
.hero-lead { max-width: 820px; color: #d7e7f8; margin-bottom: 1.4rem; }
.quiz-layout { display: grid; grid-template-columns: repeat(3, 1fr) .95fr; gap: .9rem; }
.q-card, .result-card, .glass-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.q-card, .result-card { padding: 1rem; }
.q-card h2, .q-card h3, .result-card h3 { font-size: 1rem; margin: 0 0 .7rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill { position: relative; border: 1px solid var(--line); border-radius: 999px; padding: .38rem .75rem; color: #e7f2ff; cursor: pointer; font-size: .92rem; }
.pill input { position: absolute; opacity: 0; inset: 0; }
.pill:has(input:checked), .pill:hover { background: rgba(61, 225, 255, .16); box-shadow: var(--glow); color: #fff; }
.result-card { background: linear-gradient(180deg, rgba(18, 48, 92, .8), rgba(8, 18, 38, .86)); }
.result-card strong { display: block; font-size: 1.25rem; color: #fff; }
.match { color: var(--ok); font-weight: 800; font-size: 1.4rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.btn-glow, .btn-line {
  border-radius: 999px !important;
  font-weight: 700;
  padding: .72rem 1.15rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
  color: #041018 !important;
  border: 0 !important;
  background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
  box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
  color: var(--ink) !important;
  background: transparent !important;
  border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.seal {
  display: inline-flex; align-items: center; gap: .35rem;
  border-radius: 999px; padding: .2rem .6rem; font-size: .78rem; font-weight: 700;
  background: rgba(255, 193, 90, .14); color: var(--warn); border: 1px solid rgba(255, 193, 90, .35);
}
.seal-hot { background: rgba(255, 107, 138, .14); color: #ffd0db; border-color: rgba(255, 107, 138, .4); }
.seal-ok { background: rgba(62, 224, 162, .12); color: #b9ffe4; border-color: rgba(62, 224, 162, .35); }
.mosaic { display: grid; grid-template-columns: 1.35fr 1fr 1fr; grid-template-areas: "sport casino slots" "sport fish lottery" "promo member member"; gap: .9rem; }
.tile { display: flex; flex-direction: column; justify-content: flex-end; min-height: 168px; padding: 1rem; border-radius: 20px; border: 1px solid var(--line); background: rgba(10, 26, 52, .72); position: relative; overflow: hidden; transition: .22s ease; }
.tile:hover, .tile:focus-visible { transform: translateY(-4px); box-shadow: var(--glow); color: #fff; }
.tile i { font-size: 1.3rem; color: var(--cyan); margin-bottom: .55rem; }
.tile h3 { font-size: 1.15rem; margin: 0 0 .35rem; }
.tile p { margin: 0; color: #c9daec; font-size: .95rem; }
.tile .mini { margin-top: .55rem; color: var(--cyan); font-weight: 700; font-size: .82rem; }
.t-sport { grid-area: sport; min-height: 350px; background: linear-gradient(180deg, rgba(6,16,32,.2), rgba(6,16,32,.82)), url("/assets/images/505e076fc6cf0aab.webp") center/cover; }
.t-casino { grid-area: casino; }
.t-slots { grid-area: slots; }
.t-fish { grid-area: fish; }
.t-lottery { grid-area: lottery; }
.t-promo { grid-area: promo; }
.t-member { grid-area: member; }
.feature-main, .side-card, .news-row, .rank li, .quote, .city-panel, .matrix-copy, .compare-col, .faq-item, .partner-item, .check-item {
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
}
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.media img, .news-row img, .city-photo img { width: 100%; height: 100%; object-fit: cover; }
.pad { padding: 1rem 1.05rem 1.15rem; }
.pad h3 { font-size: 1.2rem; margin: .45rem 0; }
.pad p, .quote p, .check-item p, .partner-item p { color: var(--muted); margin: 0; }
.stack { display: grid; gap: .9rem; }
.kpi {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line); border-radius: 24px; overflow: hidden;
  background: rgba(8, 22, 46, .78); box-shadow: var(--shadow);
}
.kpi div { padding: 1.2rem 1rem 1.15rem; border-right: 1px solid var(--line); }
.kpi div:last-child { border-right: 0; }
.kpi b { display: block; font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1; color: #fff; }
.kpi span { display: block; margin-top: .4rem; font-weight: 700; }
.kpi small { color: var(--muted); display: block; }
.bars { display: flex; align-items: flex-end; gap: 4px; height: 36px; margin-top: .7rem; }
.bars i { display: block; width: 7px; border-radius: 6px; background: linear-gradient(#7af7ff, #3d8bff); }
.matrix-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 1rem; align-items: stretch; }
.matrix-photo { border-radius: 24px; min-height: 100%; object-fit: cover; height: 100%; border: 1px solid var(--line); }
.matrix-list { display: grid; gap: .7rem; }
.matrix-copy { padding: .9rem 1rem; display: grid; grid-template-columns: 42px 1fr; gap: .75rem; }
.matrix-copy i { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: rgba(61, 225, 255, .12); color: var(--cyan); }
.count-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem;
  padding: .9rem 1rem; border-radius: 18px; margin-bottom: 1rem;
  background: linear-gradient(90deg, rgba(255, 107, 138, .18), rgba(61, 139, 255, .18));
  border: 1px solid rgba(255, 193, 90, .35);
}
#dongHo { font-size: 1.8rem; letter-spacing: .08em; color: #fff; }
.sale-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(260px, 1fr); gap: .9rem; overflow-x: auto; padding-bottom: .4rem; scroll-snap-type: x mandatory; }
.sale-card { scroll-snap-align: start; min-width: 0; }
.sale-card .pad { display: flex; flex-direction: column; gap: .45rem; }
.stock { font-weight: 800; color: var(--warn); }
.stock.low { color: var(--hot); }
.picked-note { margin-top: .8rem; color: #d5e7f8; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.chip {
  border-radius: 999px; border: 1px solid var(--line); background: rgba(8, 20, 40, .7);
  color: #e7f3ff; padding: .45rem .85rem; font-weight: 700;
}
.chip.is-on, .chip:hover { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.city-panel { display: grid; grid-template-columns: 220px 1fr; overflow: hidden; }
.city-photo { min-height: 100%; }
.city-copy { padding: 1.1rem 1.15rem; }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin: .8rem 0; }
.fact { background: rgba(255,255,255,.04); border-radius: 14px; padding: .7rem; border: 1px solid rgba(140,196,255,.16); }
.fact b { display: block; color: #fff; }
.rank { list-style: none; margin: 0; padding: 0; display: grid; gap: .7rem; }
.rank li { display: grid; grid-template-columns: 64px 1fr auto; gap: .8rem; align-items: center; padding: .85rem 1rem; transition: .2s ease; }
.rank li:hover { transform: translateX(4px); box-shadow: var(--glow); }
.rank em { font-style: normal; font-size: 1.3rem; font-weight: 800; color: var(--cyan); }
.rank h3 { margin: 0; font-size: 1.05rem; }
.rank p { margin: 0; color: var(--muted); }
.heat { font-size: 1.2rem; color: #fff; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.compare-col { padding: 1rem 1.05rem; }
.compare-col h3 { margin-top: 0; }
.meter { height: 8px; border-radius: 99px; background: rgba(255,255,255,.08); margin: .35rem 0 .8rem; overflow: hidden; }
.meter span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #3de1ff, #9b7bff); }
.meter.dim span { width: 42% !important; background: #6d7f99; }
.case-band { overflow: hidden; }
.case-bg { position: absolute; inset: 0; background: url("/assets/images/c724dbb4d7604857.webp") center/cover; opacity: .22; }
.case-band .container { position: relative; z-index: 1; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: .9rem; }
.quote { padding: 1rem; margin-bottom: .7rem; }
.quote h3 { margin: 0 0 .35rem; font-size: 1.05rem; }
.mile { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: .7rem; padding: 0; margin: 0; }
.mile li { background: rgba(10, 24, 48, .78); border: 1px solid var(--line); border-radius: 18px; padding: .9rem; min-height: 180px; }
.mile b { color: var(--cyan); }
.mile h3 { font-size: 1rem; margin: .4rem 0; }
.mile p { color: var(--muted); margin: 0; }
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr; gap: .9rem; padding: .55rem; align-items: center; }
.news-row img { height: 110px; border-radius: 14px; }
.news-row h3 { margin: 0 0 .25rem; font-size: 1.05rem; }
.more-link { display: inline-flex; margin-top: 1rem; font-weight: 800; color: #041018; background: linear-gradient(120deg, #7af7ff, #8eb6ff); border-radius: 999px; padding: .6rem 1rem; }
.more-link:hover { color: #041018; box-shadow: var(--glow); }
.logo-wall { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; padding: 0; margin: 0; }
.partner-item { padding: 1rem; min-height: 132px; }
.partner-item h3 { margin: 0 0 .3rem; font-size: 1.05rem; }
.shield-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: .7rem; }
.check-item { padding: .95rem; }
.check-item i { color: var(--ok); }
.check-item h3 { font-size: 1rem; margin: .4rem 0; }
.quick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.quick-item { padding: 1rem 1.05rem; border-radius: 18px; background: rgba(9, 24, 48, .72); border: 1px solid var(--line); }
.quick-item h3 { font-size: 1.05rem; margin: 0 0 .35rem; }
.quick-item p { margin: 0; color: var(--muted); }
.faq-item { margin-bottom: .65rem; overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: transparent; color: #fff; border: 0;
  padding: 1rem 1.05rem; font-weight: 800; display: flex; justify-content: space-between; gap: 1rem;
}
.faq-q i { color: var(--cyan); }
.faq-a { display: none; padding: 0 1.05rem 1rem; color: #d5e4f4; }
.faq-item.open .faq-a { display: block; }
.faq-item.open { box-shadow: var(--glow); }
.form-panel { padding: 1.1rem; border-radius: 24px; border: 1px solid var(--line); background: rgba(8, 20, 42, .8); box-shadow: var(--shadow); }
.form-label { color: #d5e4f4; font-weight: 600; }
.form-control, .form-select, textarea.form-control {
  background: rgba(4, 14, 30, .78); color: #fff; border: 1px solid rgba(140, 190, 255, .28); border-radius: 14px; min-height: 48px;
}
.form-control:focus, .form-select:focus {
  background: rgba(4, 14, 30, .92); color: #fff; border-color: var(--cyan); box-shadow: 0 0 0 .2rem rgba(61, 225, 255, .18);
}
.form-select option { color: #07111f; }
.form-ok { margin-top: .8rem; padding: .8rem 1rem; border-radius: 14px; background: rgba(62, 224, 162, .12); color: #d9ffe7; border: 1px solid rgba(62, 224, 162, .35); }
.site-foot { padding: 2.4rem 0 1.4rem; background: #040a14; border-top: 1px solid rgba(130, 190, 255, .16); }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1rem; }
.site-foot h2 { font-size: 1.15rem; margin-bottom: .4rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot a:hover { color: var(--cyan); }
.copy { margin-top: 1.2rem; padding-top: .8rem; border-top: 1px solid rgba(130, 190, 255, .14); color: #8ea3ba; font-size: .92rem; }
@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  #menuChinh { position: absolute; left: 0; right: 0; top: 100%; padding: .6rem 1rem 1rem; background: rgba(6, 14, 28, .97); border-bottom: 1px solid var(--line); }
  #menuChinh a { display: block; margin: .2rem 0; }
  .quiz-layout, .matrix-wrap, .case-grid, .compare, .city-panel { grid-template-columns: 1fr; }
  .mosaic { grid-template-columns: 1fr 1fr; grid-template-areas: "sport sport" "casino slots" "fish lottery" "promo member"; }
  .kpi, .mile, .shield-row { grid-template-columns: 1fr 1fr; }
  .kpi div { border-bottom: 1px solid var(--line); }
  .logo-wall, .quick-grid, .foot-grid { grid-template-columns: 1fr 1fr; }
  .t-sport { min-height: 240px; }
}
@media (min-width: 1025px) {
  #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible !important; }
  .nav-toggle { display: none !important; }
  .head-menu { justify-content: flex-end; flex: 1; }
}
@media (max-width: 768px) {
  .band { padding: 3.2rem 0; }
  .hero-stage { min-height: auto; padding-top: 2.4rem; }
  .quiz-layout, .fact-row, .mosaic, .logo-wall, .quick-grid, .foot-grid, .mile, .shield-row, .kpi { grid-template-columns: 1fr; }
  .mosaic { grid-template-areas: "sport" "casino" "slots" "fish" "lottery" "promo" "member"; }
  .news-row { grid-template-columns: 1fr; }
  .rank li { grid-template-columns: 48px 1fr; }
  .heat { grid-column: 2; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .brand small { display: none; }
  .hero-actions .btn, .sale-card .btn, .form-panel .btn { width: 100%; }
  .count-bar { align-items: flex-start; }
  #dongHo { font-size: 1.45rem; }
  .sale-track { grid-auto-columns: 86%; }
  h1 { font-size: 1.85rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* roulang page: category2 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
/* roulang page: category2 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
  radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
  var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1140px; }
.site-head {
 position: sticky; top: 0; z-index: 50;
 background: rgba(6, 16, 28, .9);
 backdrop-filter: blur(18px);
 border-bottom: 1px solid var(--line);
}
.head-bar {
 display: flex; align-items: center; justify-content: space-between;
 gap: 1rem; min-height: 78px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
 outline: none;
}
.band-a { background: rgba(7, 18, 36, .92); }
.hero-stage { position: relative; min-height: 760px; padding: 4.2rem 0 3.4rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
  linear-gradient(180deg, rgba(4, 10, 22, .72), rgba(4, 10, 22, .9)),
  radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.hero-stage .container { position: relative; z-index: 2; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .4rem; }
.hero-lead { max-width: 820px; color: #d7e7f8; margin-bottom: 1.4rem; }
.q-card, .result-card, .glass-card {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.q-card, .result-card { padding: 1rem; }
.q-card h2, .q-card h3, .result-card h3 { font-size: 1rem; margin: 0 0 .7rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill { position: relative; border: 1px solid var(--line); border-radius: 999px; padding: .38rem .75rem; color: #e7f2ff; cursor: pointer; font-size: .92rem; }
.pill input { position: absolute; opacity: 0; inset: 0; }
.pill:has(input:checked), .pill:hover { background: rgba(61, 225, 255, .16); box-shadow: var(--glow); color: #fff; }
.result-card { background: linear-gradient(180deg, rgba(18, 48, 92, .8), rgba(8, 18, 38, .86)); }
.result-card strong { display: block; font-size: 1.25rem; color: #fff; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.btn-glow, .btn-line {
 display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem;
 cursor: pointer;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.feature-main, .side-card, .news-row, .rank li, .quote, .city-panel, .matrix-copy, .compare-col, .faq-item, .partner-item, .check-item {
 border: 1px solid var(--line);
 background: var(--glass);
 border-radius: var(--radius);
 backdrop-filter: blur(14px);
}
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.media img, .news-row img, .city-photo img { width: 100%; height: 100%; object-fit: cover; }
.pad { padding: 1rem 1.05rem 1.15rem; }
.pad p, .quote p, .check-item p, .partner-item p { color: var(--muted); margin: 0; }
.matrix-list { display: grid; gap: .7rem; }
.sale-card { scroll-snap-align: start; min-width: 0; }
.sale-card .pad { display: flex; flex-direction: column; gap: .45rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.chip {
 border-radius: 999px; border: 1px solid var(--line); background: rgba(8, 20, 40, .7);
 color: #e7f3ff; padding: .45rem .85rem; font-weight: 700;
}
.chip.is-on, .chip:hover { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin: .8rem 0; }
.compare-col { padding: 1rem 1.05rem; }
.compare-col h3 { margin-top: 0; }
.case-band .container { position: relative; z-index: 1; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: .9rem; }
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr; gap: .9rem; padding: .7rem; align-items: center; transition: .2s ease; }
.news-row:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.news-row img { border-radius: 16px; height: 112px; }
.rank { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.rank li { padding: .8rem 1rem; }
.quote, .check-item, .partner-item { padding: 1rem; }
.city-panel { overflow: hidden; }
.city-photo { aspect-ratio: 16/9; overflow: hidden; }
.matrix-copy { padding: 1.1rem; }
.faq-item { padding: 0; overflow: hidden; }
.site-foot {
 background: #040b16;
 border-top: 1px solid var(--line);
 padding: 3rem 0 1.4rem;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-foot h2 { font-size: 1.05rem; margin: 0 0 .7rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.site-foot a { color: #d5e8ff; }
.site-foot a:hover, .site-foot a:focus-visible { color: var(--cyan); }
.copy { color: var(--muted); margin: 1.5rem 0 0; font-size: .9rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.block { padding: 4.4rem 0; position: relative; }
.block-alt { background: linear-gradient(180deg, rgba(8, 23, 44, .35), rgba(8, 23, 44, .72)); }
.block-deep { background: rgba(4, 12, 26, .72); }
.kicker { color: var(--cyan); font-weight: 700; letter-spacing: .04em; font-size: .86rem; margin-bottom: .35rem; }
.section-head { max-width: 680px; margin-bottom: 1.4rem; }
.section-head h2, .intro-copy h1, .feature-main h2, .compare-col h3, .mile h3, .qa-item h3 { letter-spacing: -.02em; }
.section-head p, .intro-copy .hero-lead { color: var(--muted); }
.live-pill {
 display: inline-flex; align-items: center; gap: .45rem;
 border-radius: 999px; padding: .28rem .7rem;
 border: 1px solid rgba(62, 224, 162, .45);
 color: #d9ffeF; background: rgba(62, 224, 162, .1);
 font-weight: 700; font-size: .82rem;
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 12px var(--ok); animation: pulse 1.6s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.intro-band { padding: 3.2rem 0 0; }
.intro-copy h1 { font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.15; font-weight: 800; margin: .4rem 0 .8rem; max-width: 16ch; }
.crumb { color: var(--muted); font-size: .9rem; margin-bottom: .6rem; }
.crumb a:hover { color: var(--cyan); }
.lobby {
 margin-top: 1.6rem;
 display: grid;
 grid-template-columns: 1.25fr .75fr;
 gap: 1rem;
 align-items: stretch;
}
.lobby-photo {
 position: relative; min-height: 420px; border-radius: 28px; overflow: hidden;
 border: 1px solid var(--line); box-shadow: var(--shadow);
}
.lobby-photo img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.lobby-photo .cap {
 position: absolute; left: 1rem; right: 1rem; bottom: 1rem; z-index: 2;
 background: rgba(5, 14, 30, .72); border: 1px solid var(--line);
 border-radius: 18px; padding: .9rem 1rem; backdrop-filter: blur(10px);
}
.lobby-photo .cap strong { display: block; }
.lobby-photo .cap span { color: var(--muted); font-size: .92rem; }
.elig { padding: 1.15rem; display: flex; flex-direction: column; gap: .85rem; }
.elig h2 { font-size: 1.25rem; margin: 0; }
.elig ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.elig li { display: flex; gap: .55rem; align-items: flex-start; color: #d7e7f7; }
.elig li i { color: var(--cyan); margin-top: .25rem; }
.metric-board {
 display: grid;
 grid-template-columns: 280px 1fr;
 gap: 1rem;
 align-items: stretch;
}
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.metric-item { padding: 1rem 1.05rem; }
.metric-item span { color: var(--muted); font-size: .88rem; }
.metric-item strong { display: block; font-size: 1.85rem; line-height: 1.15; margin: .2rem 0; color: #fff; }
.matrix-wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: .9rem; }
.mini-row {
 display: grid; grid-template-columns: 86px 1fr auto; gap: .75rem; align-items: center;
 padding: .65rem; border-radius: 18px; border: 1px solid var(--line); background: rgba(8, 20, 42, .55);
}
.mini-row img { width: 86px; height: 64px; object-fit: cover; border-radius: 12px; }
.mini-row b { display: block; }
.mini-row small { color: var(--muted); }
.tag {
 display: inline-flex; align-items: center; border-radius: 999px;
 padding: .2rem .6rem; font-size: .78rem; font-weight: 700;
 background: rgba(61, 225, 255, .12); color: #c8f6ff; border: 1px solid var(--line);
}
.compare-layout { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.bar { height: 8px; border-radius: 99px; background: rgba(255,255,255,.08); overflow: hidden; margin: .35rem 0 .8rem; }
.bar span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--violet)); }
.compare-col ul { margin: 0; padding-left: 1rem; color: #d5e6f8; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: .75rem; }
.mile { padding: 1rem; min-height: 100%; position: relative; }
.mile em {
 font-style: normal; font-weight: 800; color: #041018;
 width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
 background: linear-gradient(140deg, #7af7ff, #6d93ff);
 margin-bottom: .7rem;
}
.mile h3 { font-size: 1.05rem; margin-bottom: .35rem; }
.mile p { color: var(--muted); margin: 0; }
.guard-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: .9rem; align-items: center; }
.guard-photo { border-radius: 28px; overflow: hidden; border: 1px solid var(--line); min-height: 320px; position: relative; }
.guard-photo img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.check-list { display: grid; gap: .7rem; }
.check-item { display: grid; grid-template-columns: 42px 1fr; gap: .75rem; align-items: start; }
.check-item i { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; color: #041018; background: linear-gradient(140deg, #7af7ff, #8d7bff); }
.check-item h3 { font-size: 1rem; margin: 0 0 .2rem; }
.qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem 1.2rem; }
.qa-item { padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
.qa-item h3 { font-size: 1.02rem; margin: 0 0 .25rem; }
.qa-item p { margin: 0; color: var(--muted); }
.faq-acc .accordion-item {
 background: var(--glass); color: var(--ink);
 border: 1px solid var(--line) !important; border-radius: 18px !important;
 overflow: hidden; margin-bottom: .7rem;
}
.faq-acc .accordion-button {
 background: transparent; color: var(--ink); font-weight: 700;
 box-shadow: none !important; padding: 1rem 1.1rem;
}
.faq-acc .accordion-button:not(.collapsed) { background: rgba(61, 225, 255, .08); color: #fff; }
.faq-acc .accordion-button:focus { box-shadow: var(--glow); }
.faq-acc .accordion-button::after { filter: invert(1); }
.faq-acc .accordion-body { color: var(--muted); padding: 0 1.1rem 1rem; }
.form-card { padding: 1.2rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.form-grid .full { grid-column: 1 / -1; }
.form-card label { display: block; font-weight: 600; margin-bottom: .3rem; }
.form-card .form-control, .form-card .form-select {
 background: rgba(4, 12, 28, .72); border: 1px solid var(--line); color: var(--ink);
 border-radius: 14px; min-height: 48px;
}
.form-card .form-control:focus, .form-card .form-select:focus {
 border-color: var(--cyan); box-shadow: var(--glow); background: rgba(4, 12, 28, .92); color: #fff;
}
.form-card .form-check-input { border-color: var(--line); background-color: transparent; }
.form-card .form-check-input:focus { box-shadow: var(--glow); }
.form-note { color: var(--muted); margin: .8rem 0 0; }
.ok-note {
 display: none; margin-top: .9rem; padding: .8rem 1rem; border-radius: 16px;
 border: 1px solid rgba(62, 224, 162, .45); background: rgba(62, 224, 162, .1); color: #e8fff6;
}
.ok-note.show { display: block; }
.field-err { color: #ffb4c4; font-size: .86rem; min-height: 1.1em; }
@media (min-width: 992px) {
 #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible; }
}
@media (max-width: 1024px) {
 .metric-board, .matrix-wrap, .guard-grid, .lobby { grid-template-columns: 1fr; }
 .timeline { grid-template-columns: 1fr 1fr; }
 .lobby-photo { min-height: 300px; }
}
@media (max-width: 768px) {
 .nav-toggle { display: flex; }
 .head-bar { padding-top: .7rem; padding-bottom: .7rem; }
 #menuChinh.collapse:not(.show) { display: none; }
 #menuChinh.collapse.show { display: flex; flex-direction: column; align-items: stretch; width: 100%; padding: 0 0 .8rem; }
 .head-menu a { display: block; }
 .fact-row, .compare-layout, .qa-grid, .form-grid, .foot-grid, .case-grid, .news-row { grid-template-columns: 1fr; }
 .news-row img { width: 100%; height: 180px; }
 .intro-copy h1 { max-width: none; }
 .block { padding: 3.1rem 0; }
}
@media (max-width: 520px) {
 .metric-grid, .timeline { grid-template-columns: 1fr; }
 .mini-row { grid-template-columns: 72px 1fr; }
 .mini-row .tag { display: none; }
 .hero-actions .btn-glow, .hero-actions .btn-line { width: 100%; }
 .brand small { display: block; }
}

/* roulang page: category1 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
/* roulang page: category1 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
 radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
 radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
 var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1140px; }
.site-head {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(6, 16, 28, .88);
 backdrop-filter: blur(16px);
 border-bottom: 1px solid var(--line);
}
.head-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 1rem;
 min-height: 78px;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
 margin-left: auto;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.band-a { background: rgba(7, 18, 36, .92); }
.hero-stage { position: relative; min-height: 760px; padding: 4.2rem 0 3.4rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
 linear-gradient(180deg, rgba(4, 10, 22, .72), rgba(4, 10, 22, .9)),
 radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.hero-stage .container { position: relative; z-index: 2; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .4rem; }
.hero-lead { max-width: 820px; color: #d7e7f8; margin-bottom: 1.4rem; }
.q-card, .result-card, .glass-card {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.q-card, .result-card { padding: 1rem; }
.q-card h2, .q-card h3, .result-card h3 { font-size: 1rem; margin: 0 0 .7rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill { position: relative; border: 1px solid var(--line); border-radius: 999px; padding: .38rem .75rem; color: #e7f2ff; cursor: pointer; font-size: .92rem; }
.pill input { position: absolute; opacity: 0; inset: 0; }
.pill:has(input:checked), .pill:hover { background: rgba(61, 225, 255, .16); box-shadow: var(--glow); color: #fff; }
.result-card { background: linear-gradient(180deg, rgba(18, 48, 92, .8), rgba(8, 18, 38, .86)); }
.result-card strong { display: block; font-size: 1.25rem; color: #fff; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.btn-glow, .btn-line {
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.feature-main, .side-card, .news-row, .rank li, .quote, .city-panel, .matrix-copy, .compare-col, .faq-item, .partner-item, .check-item {
 border: 1px solid var(--line);
 background: var(--glass);
 border-radius: var(--radius);
 backdrop-filter: blur(14px);
}
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.media img, .news-row img, .city-photo img { width: 100%; height: 100%; object-fit: cover; }
.pad { padding: 1rem 1.05rem 1.15rem; }
.pad p, .quote p, .check-item p, .partner-item p { color: var(--muted); margin: 0; }
.matrix-list { display: grid; gap: .7rem; }
.sale-card { scroll-snap-align: start; min-width: 0; }
.sale-card .pad { display: flex; flex-direction: column; gap: .45rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.chip {
 border-radius: 999px; border: 1px solid var(--line); background: rgba(8, 20, 40, .7);
 color: #e7f3ff; padding: .45rem .85rem; font-weight: 700;
}
.chip.is-on, .chip:hover { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin: .8rem 0; }
.compare-col { padding: 1rem 1.05rem; height: 100%; }
.compare-col h3 { margin-top: 0; }
.case-band .container { position: relative; z-index: 1; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: .9rem; }
.news-list { display: grid; gap: .75rem; }
.news-row {
 display: grid;
 grid-template-columns: 168px 1fr;
 gap: .9rem;
 padding: .7rem;
 align-items: center;
 transition: .2s ease;
}
.news-row:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.news-row h3 { margin: 0 0 .25rem; font-size: 1.05rem; }
.news-row p { margin: 0; color: var(--muted); }
.rank { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.rank li, .quote, .partner-item, .check-item { padding: .9rem 1rem; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary {
 cursor: pointer;
 list-style: none;
 padding: 1rem 1.15rem;
 font-weight: 700;
 display: flex;
 justify-content: space-between;
 gap: 1rem;
 align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "+"; color: var(--cyan); font-size: 1.2rem; }
.faq-item[open] summary:after { content: "–"; }
.faq-item[open] { box-shadow: var(--glow); }
.faq-item p { color: var(--muted); padding: 0 1.15rem 1rem; margin: 0; }
.site-foot {
 border-top: 1px solid var(--line);
 background: #040b16;
 padding: 3rem 0 1.4rem;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-foot h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .35rem; }
.site-foot a { color: #d5e8ff; }
.site-foot a:hover { color: var(--cyan); }
.copy { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .92rem; }
.band { padding: 4.2rem 0; position: relative; }
.band-b { background: linear-gradient(180deg, rgba(8, 23, 44, .72), rgba(6, 16, 28, .2)); }
.band-c { background: rgba(7, 18, 36, .72); }
.band-head { display: flex; justify-content: space-between; gap: 1.2rem; align-items: flex-end; margin-bottom: 1.3rem; }
.band-head h2, .sport-copy h1 { letter-spacing: -.02em; line-height: 1.2; }
.band-head p, .lead-soft { color: var(--muted); margin: .4rem 0 0; max-width: 640px; }
.kicker { color: var(--cyan); font-weight: 700; font-size: .86rem; letter-spacing: .04em; text-transform: uppercase; }
.sport-intro { position: relative; padding: 3.4rem 0 2.2rem; overflow: hidden; }
.sport-intro::before {
 content: "";
 position: absolute; inset: 0;
 background: url("/assets/images/2d00d085d9030575.jpg") center/cover no-repeat;
 opacity: .2;
}
.sport-intro::after {
 content: "";
 position: absolute; inset: 0;
 background: linear-gradient(100deg, rgba(6, 16, 28, .94) 8%, rgba(6, 16, 28, .78) 46%, rgba(6, 16, 28, .42));
}
.sport-intro .container { position: relative; z-index: 1; }
.sport-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 1.6rem; align-items: center; }
.sport-copy h1 { font-size: clamp(2rem, 4vw, 3.35rem); font-weight: 800; margin: 0 0 .8rem; }
.mini-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin-top: 1.1rem; }
.mini-kpis article {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: 16px;
 padding: .75rem .8rem;
}
.mini-kpis strong { display: block; font-size: 1.2rem; color: #fff; }
.mini-kpis span { color: var(--muted); font-size: .82rem; }
.sport-visual {
 position: relative;
 min-height: 520px;
 border-radius: 30px;
 overflow: hidden;
 transform: rotate(-2.4deg) translate(10px, 14px);
 border: 1px solid var(--line);
 box-shadow: var(--shadow), var(--glow);
}
.sport-visual .hero-shot { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.score-float {
 position: absolute;
 left: 18px;
 bottom: 22px;
 width: min(290px, 78%);
 z-index: 2;
 transform: rotate(2.4deg);
}
.score-float span { color: var(--cyan); font-size: .8rem; font-weight: 700; }
.score-float strong { font-size: 1.35rem; }
.badge-soft {
 display: inline-flex; align-items: center; gap: .35rem;
 border-radius: 999px; padding: .22rem .68rem;
 font-size: .78rem; font-weight: 700; color: #d9f8ff;
 background: rgba(61, 225, 255, .12); border: 1px solid var(--line);
}
.badge-hot { color: #ffd0dc; background: rgba(255, 107, 138, .14); }
.badge-ok { color: #d9ffe9; background: rgba(62, 224, 162, .14); }
.kpi-board { display: grid; grid-template-columns: 1.25fr repeat(4, 1fr); gap: .75rem; }
.kpi-lead, .kpi-cell {
 background: var(--glass-2);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 padding: 1rem 1.05rem;
 box-shadow: var(--shadow);
}
.kpi-cell strong { display: block; font-size: 1.7rem; line-height: 1.1; color: #fff; }
.kpi-cell span, .kpi-lead p { color: var(--muted); }
.kpi-cell i { color: var(--cyan); margin-bottom: .35rem; }
.matrix-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: .9rem; }
.stack-cards { display: grid; gap: .9rem; }
.side-card { display: grid; grid-template-columns: 112px 1fr; }
.side-card .media { aspect-ratio: auto; min-height: 100%; }
.compare-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr; gap: .85rem; }
.compare-col ul { margin: .6rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.compare-col li + li { margin-top: .3rem; }
.compare-col em { color: var(--warn); font-style: normal; font-weight: 700; }
.mile-wrap { display: grid; grid-template-columns: .85fr 1.15fr; gap: 1.2rem; align-items: start; }
.mile-list { position: relative; display: grid; }
.mile-list::before {
 content: "";
 position: absolute; left: 18px; top: 8px; bottom: 8px; width: 2px;
 background: linear-gradient(var(--cyan), var(--violet));
}
.mile-item { display: grid; grid-template-columns: 44px 1fr; gap: .7rem; padding: .7rem 0; }
.dot {
 width: 16px; height: 16px; border-radius: 50%;
 background: var(--cyan); box-shadow: var(--glow); margin: 8px 0 0 11px;
}
.mile-item h3 { margin: 0; font-size: 1.02rem; }
.mile-item p { margin: .15rem 0 0; color: var(--muted); }
.city-photo { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); min-height: 280px; position: relative; }
.city-photo img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.photo-note {
 position: absolute; left: 14px; right: 14px; bottom: 14px;
 background: rgba(6, 16, 28, .78);
 border: 1px solid var(--line);
 border-radius: 16px;
 padding: .75rem .9rem;
}
.guard-list { display: grid; gap: .7rem; }
.check-item { display: grid; grid-template-columns: 42px 1fr; gap: .7rem; align-items: start; }
.check-item i {
 width: 42px; height: 42px; border-radius: 14px;
 display: grid; place-items: center;
 color: #041018;
 background: linear-gradient(140deg, #7af7ff, #6aa2ff);
}
.check-item h3 { margin: 0 0 .15rem; font-size: 1rem; }
.faq-grid { display: grid; gap: .7rem; }
.form-shell { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1rem; align-items: stretch; }
.field, select.field, textarea.field {
 width: 100%;
 background: rgba(4, 12, 24, .72);
 border: 1px solid var(--line);
 color: var(--ink);
 border-radius: 14px;
 padding: .75rem .9rem;
}
.field:focus, select.field:focus, textarea.field:focus {
 border-color: var(--cyan);
 box-shadow: var(--glow);
 outline: none;
}
label { font-weight: 600; font-size: .92rem; margin-bottom: .3rem; display: block; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.notice {
 display: none;
 margin-top: .9rem;
 border-radius: 16px;
 border: 1px solid rgba(62, 224, 162, .45);
 background: rgba(62, 224, 162, .12);
 color: #e9fff5;
 padding: .8rem .95rem;
}
.notice.show { display: block; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
@media (min-width: 992px) {
 #menuChinh.head-menu.collapse { display: flex !important; height: auto !important; }
}
@media (max-width: 1024px) {
 .sport-grid, .kpi-board, .matrix-layout, .compare-grid, .mile-wrap, .form-shell { grid-template-columns: 1fr 1fr; }
 .kpi-lead { grid-column: 1 / -1; }
 .sport-visual { min-height: 420px; transform: none; }
}
@media (max-width: 991.98px) {
 .nav-toggle { display: flex; }
 .head-bar { flex-wrap: wrap; }
 #menuChinh.head-menu {
 flex-basis: 100%;
 flex-direction: column;
 align-items: stretch;
 background: rgba(6, 16, 32, .97);
 border: 1px solid var(--line);
 border-radius: 18px;
 padding: .55rem;
 margin: 0 0 .85rem;
 max-height: 70vh;
 overflow: auto;
 }
 #menuChinh.head-menu.collapse.show { display: flex; }
 .head-menu a { display: block; }
}
@media (max-width: 768px) {
 .sport-grid, .kpi-board, .matrix-layout, .compare-grid, .mile-wrap, .case-grid, .form-shell, .foot-grid, .fact-row, .news-row, .side-card, .form-grid, .mini-kpis {
 grid-template-columns: 1fr;
 }
 .band { padding: 3rem 0; }
 .band-head { flex-direction: column; align-items: flex-start; }
 .sport-visual { min-height: 320px; }
 .score-float { left: 12px; right: 12px; width: auto; }
}
@media (max-width: 520px) {
 .hero-actions .btn, .form-actions .btn { width: 100%; }
 .brand { min-width: 0; }
 .sport-copy h1 { font-size: 1.85rem; }
 .kpi-cell strong { font-size: 1.45rem; }
}

/* roulang page: category3 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
  radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
  var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
}
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1140px; }
.site-head {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(6, 16, 28, .88);
 backdrop-filter: blur(16px);
 border-bottom: 1px solid var(--line);
}
.head-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 1rem;
 min-height: 78px;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; color: #fff; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
 outline: none;
}
.slot-hero { position: relative; padding: 4.2rem 0 3.2rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
  linear-gradient(100deg, rgba(4, 10, 22, .92) 10%, rgba(4, 10, 22, .78) 52%, rgba(4, 10, 22, .55)),
  radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.slot-hero .container { position: relative; z-index: 2; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .45rem; letter-spacing: .04em; }
h1 { font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.16; font-weight: 800; margin: 0 0 1rem; letter-spacing: -.02em; }
h2 { font-size: clamp(1.45rem, 2.4vw, 2rem); line-height: 1.25; font-weight: 800; margin: 0 0 .7rem; }
.hero-lead { max-width: 640px; color: #d7e7f8; margin-bottom: .4rem; font-size: 1.05rem; }
.kicker { color: var(--cyan); font-weight: 700; font-size: .84rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .35rem; }
.section-note { color: var(--muted); max-width: 680px; margin-bottom: 1.2rem; }
.q-card, .result-card, .glass-card, .jack-panel, .stat-item, .feature-main, .side-card, .news-row, .compare-col, .faq-item, .check-item, .mile-item, .seat-card {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.jack-panel { overflow: hidden; }
.jack-photo { aspect-ratio: 16/10; overflow: hidden; }
.jack-photo img, .media img, .news-row img { width: 100%; height: 100%; object-fit: cover; }
.jack-meta { padding: 1rem 1.1rem 1.15rem; display: grid; gap: .7rem; }
.jack-meta strong { font-size: 1.55rem; display: block; line-height: 1.2; }
.jack-meta span { color: var(--muted); }
.pill-row, .chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.pill, .chip {
 border: 1px solid var(--line);
 border-radius: 999px;
 padding: .38rem .75rem;
 color: #e7f2ff;
 background: rgba(8, 20, 40, .55);
 font-weight: 650;
 font-size: .9rem;
}
.chip.is-on { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.15rem; }
.btn-glow, .btn-line {
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
 outline: 2px solid var(--cyan);
 outline-offset: 3px;
}
.band { padding: 4.4rem 0; }
.band-a { background: rgba(7, 18, 36, .72); border-top: 1px solid rgba(140, 196, 255, .12); border-bottom: 1px solid rgba(140, 196, 255, .12); }
.band-b { background: linear-gradient(180deg, rgba(8, 23, 44, .2), rgba(12, 33, 64, .45)); }
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.stat-item { padding: 1rem 1.05rem; min-height: 132px; }
.stat-item i { color: var(--cyan); font-size: 1.1rem; }
.stat-item b { display: block; margin-top: .55rem; font-size: 1.45rem; line-height: 1.1; }
.stat-item p { margin: .25rem 0 0; color: var(--muted); }
.room-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: .9rem; align-items: stretch; }
.side-stack { display: grid; gap: .9rem; }
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover, .news-row:hover, .compare-col:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.side-card .media { aspect-ratio: 16/8; }
.pad { padding: 1.05rem 1.1rem 1.15rem; }
.pad p, .compare-col p, .check-item p, .faq-item p, .mile-item p, .seat-copy p { color: var(--muted); margin: 0; }
.room-tag { display: inline-flex; align-items: center; gap: .35rem; color: #041018; background: linear-gradient(120deg, #7af7ff, #b7a6ff); border-radius: 999px; font-size: .78rem; font-weight: 800; padding: .2rem .55rem; margin-bottom: .55rem; }
.mini-facts { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .75rem; }
.mini-facts span { border: 1px solid var(--line); border-radius: 12px; padding: .28rem .55rem; color: #d7e9ff; font-size: .86rem; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.compare-col { padding: 1.15rem 1.15rem 1.2rem; }
.compare-col h3, .mile-item h3, .faq-item h3, .check-item h3 { margin: .2rem 0 .45rem; font-size: 1.12rem; }
.compare-col ul, .check-item ul { margin: .7rem 0 0; padding-left: 1.1rem; color: #d5e6f8; }
.compare-col.hot { background: linear-gradient(180deg, rgba(18, 48, 92, .86), rgba(8, 18, 38, .9)); }
.mile-list { display: grid; gap: .75rem; position: relative; }
.mile-item { display: grid; grid-template-columns: 92px 1fr; gap: 1rem; padding: 1rem 1.05rem; }
.mile-item time { color: var(--warn); font-weight: 800; }
.news-list { display: grid; gap: .8rem; }
.news-row { display: grid; grid-template-columns: 190px 1fr; gap: .95rem; overflow: hidden; transition: .22s ease; }
.news-row h3 { margin: 0 0 .3rem; font-size: 1.08rem; }
.news-copy { padding: .85rem .95rem .85rem 0; }
.pledge-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: .9rem; }
.check-item { padding: 1rem 1.05rem; }
.check-item i { color: var(--ok); }
.faq-list { display: grid; gap: .7rem; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 1rem 1.1rem; font-weight: 750; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "+"; float: right; color: var(--cyan); font-weight: 800; }
.faq-item[open] summary:after { content: "–"; }
.faq-item p { padding: 0 1.1rem 1rem; }
.seat-wrap { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1rem; align-items: stretch; }
.seat-copy, .seat-card { padding: 1.2rem; }
.seat-copy { border-radius: var(--radius); background: linear-gradient(160deg, rgba(61, 139, 255, .22), rgba(8, 18, 38, .2)); border: 1px solid var(--line); }
.form-label { color: #d5e7f8; font-weight: 650; font-size: .92rem; }
.form-control, .form-select, textarea.form-control {
 background: rgba(5, 14, 28, .76);
 border: 1px solid var(--line);
 color: var(--ink);
 border-radius: 14px;
 padding: .75rem .9rem;
}
.form-control:focus, .form-select:focus {
 border-color: var(--cyan);
 box-shadow: var(--glow);
 background: rgba(5, 14, 28, .92);
 color: #fff;
}
.form-select option { color: #041018; }
.form-check-input { border-color: var(--cyan); background-color: transparent; }
.form-check-input:checked { background-color: #3d8bff; border-color: #7af7ff; }
.ok-note { display: none; margin-top: .8rem; color: #d9ffe7; background: rgba(62, 224, 162, .12); border: 1px solid rgba(62, 224, 162, .4); border-radius: 14px; padding: .75rem .85rem; }
.site-foot { padding: 3rem 0 1.4rem; background: #040b16; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-foot h2 { font-size: 1.05rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.site-foot a { color: #d7e8ff; }
.site-foot a:hover { color: var(--cyan); }
.copy { margin-top: 1.4rem; font-size: .92rem; }
@media (min-width: 992px) {
 #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible; }
 .nav-toggle { display: none !important; }
}
@media (max-width: 1024px) {
 .stat-strip { grid-template-columns: 1fr 1fr; }
 .room-grid, .pledge-grid, .seat-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 991.98px) {
 .nav-toggle { display: flex; }
 .head-bar { flex-wrap: wrap; padding-top: .75rem; padding-bottom: .75rem; }
 #menuChinh.head-menu { flex-basis: 100%; }
 #menuChinh.head-menu.show { display: flex; flex-direction: column; align-items: stretch; gap: .3rem; padding-bottom: .85rem; }
 #menuChinh.head-menu a { display: block; }
}
@media (max-width: 768px) {
 .band { padding: 3.2rem 0; }
 .slot-hero { padding: 3.2rem 0 2.4rem; }
 .compare-grid, .news-row, .mile-item, .foot-grid { grid-template-columns: 1fr; }
 .news-copy { padding: 0 1rem 1rem; }
 .mile-item time { display: block; }
}
@media (max-width: 520px) {
 .stat-strip { grid-template-columns: 1fr; }
 .hero-actions .btn { width: 100%; }
 .brand small { display: block; }
 h1 { font-size: 1.72rem; }
}

/* roulang page: category4 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
/* roulang page: category4 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
  radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
  var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
 outline: 2px solid var(--cyan);
 outline-offset: 3px;
}
.container { max-width: 1140px; }
.site-head {
 position: sticky; top: 0; z-index: 40;
 background: rgba(6, 14, 28, .86);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(18px);
}
.head-bar { display: flex; align-items: center; justify-content: space-between; min-height: 78px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
 cursor: pointer;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.band-a { background: rgba(7, 18, 36, .92); }
.hero-stage { position: relative; min-height: 760px; padding: 4.2rem 0 3.4rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
  linear-gradient(180deg, rgba(4, 10, 22, .72), rgba(4, 10, 22, .9)),
  radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.hero-stage .container { position: relative; z-index: 2; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .4rem; }
.hero-lead { max-width: 820px; color: #d7e7f8; margin-bottom: 1.4rem; }
.q-card, .result-card, .glass-card {
 background: var(--glass);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.q-card, .result-card { padding: 1rem; }
.q-card h2, .q-card h3, .result-card h3 { font-size: 1rem; margin: 0 0 .7rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill { position: relative; border: 1px solid var(--line); border-radius: 999px; padding: .38rem .75rem; color: #e7f2ff; cursor: pointer; font-size: .92rem; }
.pill input { position: absolute; opacity: 0; inset: 0; }
.pill:has(input:checked), .pill:hover { background: rgba(61, 225, 255, .16); box-shadow: var(--glow); color: #fff; }
.result-card { background: linear-gradient(180deg, rgba(18, 48, 92, .8), rgba(8, 18, 38, .86)); }
.result-card strong { display: block; font-size: 1.25rem; color: #fff; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.btn-glow, .btn-line {
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.feature-main, .side-card, .news-row, .rank li, .quote, .city-panel, .matrix-copy, .compare-col, .faq-item, .partner-item, .check-item {
 border: 1px solid var(--line);
 background: var(--glass);
 border-radius: var(--radius);
 backdrop-filter: blur(14px);
}
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.media img, .news-row img, .city-photo img { width: 100%; height: 100%; object-fit: cover; }
.pad { padding: 1rem 1.05rem 1.15rem; }
.pad p, .quote p, .check-item p, .partner-item p { color: var(--muted); margin: 0; }
.matrix-list { display: grid; gap: .7rem; }
.sale-card { scroll-snap-align: start; min-width: 0; }
.sale-card .pad { display: flex; flex-direction: column; gap: .45rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.chip {
 border-radius: 999px; border: 1px solid var(--line); background: rgba(8, 20, 40, .7);
 color: #e7f3ff; padding: .45rem .85rem; font-weight: 700; cursor: pointer;
 transition: .2s ease;
}
.chip.is-on, .chip:hover { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; margin: .8rem 0; }
.compare-col { padding: 1rem 1.05rem; }
.compare-col h3 { margin-top: 0; }
.case-band .container { position: relative; z-index: 1; }
.case-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: .9rem; }
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr; gap: .9rem; padding: .7rem; align-items: center; transition: .2s ease; }
.news-row:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.news-row img { border-radius: 16px; height: 112px; }
.rank { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.rank li, .quote, .city-panel, .matrix-copy, .partner-item, .check-item { padding: .9rem 1rem; }
.site-foot { padding: 3rem 0 1.4rem; border-top: 1px solid var(--line); background: #040b16; margin-top: 0; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.4rem; }
.site-foot h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.site-foot a { color: #d7ecff; }
.site-foot a:hover { color: var(--cyan); }
.copy { border-top: 1px solid var(--line); margin: 1.4rem 0 0; padding-top: 1rem; font-size: .92rem; }
.cat-hero { position: relative; overflow: hidden; padding: 4.4rem 0 3.2rem; }
.orb { position: absolute; border-radius: 50%; filter: blur(8px); pointer-events: none; z-index: 1; }
.orb-a { width: 280px; height: 280px; right: -40px; top: 40px; background: radial-gradient(circle, rgba(61,225,255,.35), transparent 68%); }
.orb-b { width: 340px; height: 220px; left: -80px; bottom: -30px; background: radial-gradient(circle, rgba(155,123,255,.32), transparent 70%); }
.cat-hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1.3rem; align-items: center; }
.kicker { display: inline-flex; align-items: center; gap: .45rem; color: #b7f6ff; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: .78rem; }
h1 { font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.12; font-weight: 800; margin: .45rem 0 .8rem; letter-spacing: -.02em; }
.point-list { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin: 1rem 0 0; }
.point { display: flex; gap: .7rem; align-items: flex-start; padding: .75rem .8rem; border-radius: 18px; border: 1px solid var(--line); background: rgba(8, 22, 46, .55); }
.point i { width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center; color: #041018; background: linear-gradient(140deg, #7af7ff, #8d7bff); flex: 0 0 auto; }
.point strong { display: block; font-size: .95rem; }
.point span { color: var(--muted); font-size: .88rem; }
.pulse-card { padding: 1rem; }
.pulse-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: .8rem; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 12px var(--ok); display: inline-block; margin-right: .35rem; }
.room-line { display: grid; grid-template-columns: 1.2fr .8fr auto; gap: .5rem; align-items: center; padding: .75rem 0; border-top: 1px solid var(--line); }
.room-line b { font-weight: 700; }
.tag { display: inline-flex; align-items: center; border-radius: 999px; padding: .15rem .55rem; font-size: .75rem; font-weight: 700; }
.tag-ok { color: #042216; background: var(--ok); }
.tag-hot { color: #2a1020; background: var(--hot); }
.tag-warn { color: #2c2108; background: var(--warn); }
.metric-band { padding: 1.2rem 0 1.4rem; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .75rem; }
.metric { padding: 1rem 1.05rem; }
.metric em { display: block; font-style: normal; color: var(--cyan); font-size: .8rem; font-weight: 700; }
.metric strong { display: block; font-size: clamp(1.4rem, 2vw, 1.9rem); line-height: 1.2; margin: .2rem 0; }
.metric span { color: var(--muted); font-size: .9rem; }
.section { padding: 4.2rem 0; }
.section h2 { font-size: clamp(1.5rem, 2.5vw, 2.15rem); line-height: 1.2; margin: 0 0 .5rem; font-weight: 800; }
.lede { color: var(--muted); margin: 0; }
.room-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.room-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: .9rem; }
.side-stack { display: grid; gap: .9rem; }
.badge { display: inline-flex; width: fit-content; border-radius: 999px; padding: .2rem .6rem; font-size: .75rem; font-weight: 800; background: rgba(61,225,255,.16); color: #c9f6ff; border: 1px solid var(--line); }
.feature-main h3, .side-card h3, .news-row h3 { margin: .35rem 0; font-size: 1.15rem; }
.room-card.is-off { display: none; }
.compare-layout { display: grid; grid-template-columns: 1.05fr .9fr .9fr; gap: .9rem; align-items: stretch; }
.compare-intro { padding-right: .4rem; }
.compare-col ul, .check-list { margin: .4rem 0 0; padding: 0; list-style: none; display: grid; gap: .45rem; }
.compare-col li, .check-list li { color: #d5e6f8; padding-left: 1.15rem; position: relative; }
.compare-col li::before, .check-list li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); position: absolute; left: 0; top: .55rem; box-shadow: 0 0 10px var(--cyan); }
.compare-col.is-dim { opacity: .92; background: rgba(8, 16, 32, .55); }
.mile-rail { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; margin-top: 1.2rem; position: relative; }
.mile-rail::before { content: ""; position: absolute; left: 6%; right: 6%; top: 28px; height: 2px; background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent); }
.mile { position: relative; padding: 0 .2rem; }
.mile b { width: 56px; height: 56px; border-radius: 18px; display: grid; place-items: center; background: linear-gradient(140deg, #7af7ff, #4d8dff 60%, #b08bff); color: #041018; font-size: 1.1rem; box-shadow: var(--glow); margin-bottom: .7rem; }
.mile h3 { font-size: 1.02rem; margin: 0 0 .25rem; }
.mile p { color: var(--muted); margin: 0; }
.news-layout, .guard-grid, .faq-layout, .form-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1.1rem; align-items: start; }
.guard-grid { grid-template-columns: 1.15fr .85fr; }
.check-list.tight li { background: rgba(8,20,42,.45); border: 1px solid var(--line); border-radius: 16px; padding: .7rem .8rem .7rem 1.7rem; }
.check-list.tight li::before { left: .7rem; top: 1.05rem; }
.quick-box { padding: 1rem 1.05rem; }
.quick-box h3 { margin: 0 0 .7rem; font-size: 1.05rem; }
.quick-box dt { font-weight: 700; margin-top: .55rem; }
.quick-box dd { margin: 0; color: var(--muted); }
.faq-list { display: grid; gap: .7rem; }
.faq-item summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: .8rem; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--cyan); font-size: 1.3rem; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item { padding: .95rem 1rem; }
.faq-item p { margin: .55rem 0 0; }
.form-card { padding: 1.05rem; }
.form-photo { border-radius: var(--radius); overflow: hidden; min-height: 100%; border: 1px solid var(--line); position: relative; }
.form-photo img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.form-photo figcaption { position: absolute; left: .8rem; right: .8rem; bottom: .8rem; padding: .7rem .8rem; border-radius: 16px; background: rgba(4, 12, 24, .72); border: 1px solid var(--line); }
.field { display: grid; gap: .3rem; margin-bottom: .75rem; }
.field label { font-weight: 600; font-size: .92rem; }
.field input, .field select, .field textarea {
 width: 100%; border-radius: 14px; border: 1px solid var(--line);
 background: rgba(4, 12, 26, .72); color: var(--ink); padding: .72rem .8rem;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: rgba(61,225,255,.55); }
.note { color: var(--ok); font-weight: 700; min-height: 1.4rem; margin: .6rem 0 0; }
.soft-band { background: linear-gradient(180deg, rgba(8, 23, 44, .2), rgba(8, 23, 44, .72)); }
.deep-band { background: rgba(5, 12, 24, .72); }
@media (min-width: 1041px) {
 #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible; }
}
@media (max-width: 1040px) {
 .nav-toggle { display: flex; }
 .head-bar { flex-wrap: wrap; padding-top: .7rem; padding-bottom: .7rem; }
 #menuChinh.collapse.show { display: flex !important; flex-direction: column; align-items: stretch; gap: .25rem; padding-bottom: .9rem; }
 .head-menu a { display: block; }
 .hero-grid, .room-grid, .compare-layout, .news-layout, .guard-grid, .faq-layout, .form-grid, .case-grid { grid-template-columns: 1fr; }
 .metric-grid, .mile-rail { grid-template-columns: 1fr 1fr; }
 .mile-rail::before { display: none; }
 .fact-row { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
 .section { padding: 3rem 0; }
 .cat-hero { padding: 2.6rem 0 2.2rem; }
 .point-list, .foot-grid { grid-template-columns: 1fr; }
 .room-head { flex-direction: column; align-items: flex-start; }
 .news-row { grid-template-columns: 1fr; }
 .news-row img { height: 180px; width: 100%; }
 .room-line { grid-template-columns: 1fr; gap: .15rem; }
}
@media (max-width: 520px) {
 .metric-grid, .mile-rail { grid-template-columns: 1fr; }
 h1 { font-size: 1.85rem; }
 .hero-actions .btn { width: 100%; }
 .brand small { display: block; }
 .container { padding-left: 1rem; padding-right: 1rem; }
}

/* roulang page: category5 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
  radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
  var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
 overflow-wrap: break-word;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
 outline: 2px solid var(--cyan);
 outline-offset: 3px;
}
.container { max-width: 1140px; }
.site-head {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(6, 16, 28, .88);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(16px);
 box-shadow: 0 10px 30px rgba(2, 8, 20, .28);
}
.head-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 1rem;
 min-height: 78px;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.section { padding: 4.3rem 0; }
.band-a { background: rgba(7, 18, 36, .72); border-block: 1px solid rgba(140, 196, 255, .12); }
.band-b { background: linear-gradient(180deg, rgba(8, 23, 44, .2), rgba(12, 33, 64, .55)); }
.kicker { color: #b7f6ff; font-weight: 700; letter-spacing: .04em; margin-bottom: .35rem; }
.section-head { max-width: 740px; margin-bottom: 1.5rem; }
.section-head h2, .desk-copy h1, .entry-panel h2, .mile-copy h2, .guard-copy h2, .faq-copy h2, .form-copy h2 { letter-spacing: -.02em; }
.section-head p, .desk-copy p, .mile-copy p, .guard-copy p, .faq-copy p, .form-copy p, .pad p, .compare-col p, .check-item p, .news-copy p, .wide-bar p { color: var(--muted); margin: 0; }
h1 { font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1.12; font-weight: 800; margin: 0 0 .85rem; }
h2 { font-size: clamp(1.45rem, 2.5vw, 2.05rem); line-height: 1.25; font-weight: 800; margin: 0 0 .7rem; }
h3 { font-size: 1.08rem; font-weight: 700; margin: 0 0 .4rem; }
.desk-hero { position: relative; padding: 4.4rem 0 3.6rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
  linear-gradient(100deg, rgba(4, 10, 22, .92) 12%, rgba(4, 10, 22, .78) 52%, rgba(4, 10, 22, .62)),
  radial-gradient(520px 240px at 86% 18%, rgba(61, 225, 255, .22), transparent 70%);
}
.desk-hero .container { position: relative; z-index: 2; }
.crumb { display: flex; gap: .45rem; align-items: center; color: #c5d8ec; font-size: .88rem; margin-bottom: .8rem; }
.crumb a { color: var(--cyan); }
.tag, .chip {
 display: inline-flex; align-items: center; gap: .35rem;
 border-radius: 999px; font-weight: 700; line-height: 1.2;
}
.tag { padding: .28rem .7rem; font-size: .78rem; color: #041018; background: linear-gradient(120deg, #7af7ff, #8eb6ff); }
.tag.soft, .chip {
 color: #e7f3ff; background: rgba(8, 20, 40, .7); border: 1px solid var(--line); padding: .42rem .8rem; font-size: .86rem;
}
.tag.hot { color: #fff; background: linear-gradient(120deg, #ff6b8a, #ffc15a); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0 0; }
.entry-panel, .q-card, .result-card, .glass-card, .feature-main, .side-card, .news-row, .compare-col, .faq-item, .check-item, .metric-tile, .wide-bar, .form-card {
 border: 1px solid var(--line);
 background: var(--glass);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.entry-panel { padding: 1rem; }
.entry-panel h2 { font-size: 1.15rem; }
.entry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.entry-tile {
 display: flex; flex-direction: column; gap: .25rem;
 min-height: 118px; padding: .9rem;
 border-radius: 18px; border: 1px solid var(--line);
 background: rgba(10, 28, 54, .72); color: var(--ink);
 transition: .2s ease;
}
.entry-tile:hover, .entry-tile:focus-visible { transform: translateY(-3px); box-shadow: var(--glow); color: #fff; }
.entry-tile span { color: var(--cyan); font-weight: 800; font-size: .95rem; }
.entry-tile small { color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.15rem; }
.btn-glow, .btn-line {
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem !important;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.metric-board { display: grid; grid-template-columns: 1.25fr repeat(3, 1fr); gap: .8rem; }
.metric-intro, .metric-tile { padding: 1.15rem 1.15rem 1.2rem; }
.metric-intro { background: linear-gradient(160deg, rgba(18, 48, 92, .82), rgba(8, 18, 38, .88)); }
.metric-tile strong { display: block; font-size: clamp(1.7rem, 3vw, 2.3rem); line-height: 1.1; color: #fff; }
.metric-tile span { color: var(--muted); font-size: .92rem; }
.ico {
 width: 42px; height: 42px; border-radius: 14px;
 display: grid; place-items: center; margin-bottom: .7rem;
 color: var(--cyan); background: rgba(61, 225, 255, .12); border: 1px solid var(--line);
}
.matrix-layout { display: grid; grid-template-columns: 1.35fr .85fr; gap: .9rem; }
.stack-cards { display: grid; gap: .9rem; }
.feature-main, .side-card { overflow: hidden; height: 100%; transition: .22s ease; }
.feature-main:hover, .side-card:hover, .news-row:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.media { aspect-ratio: 16/10; overflow: hidden; }
.media img, .guard-photo img { width: 100%; height: 100%; object-fit: cover; }
.pad { padding: 1.05rem 1.1rem 1.2rem; }
.side-card { padding: 1.05rem 1.1rem; }
.wide-bar { display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: center; margin-top: .9rem; padding: 1rem 1.1rem; }
.compare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; }
.compare-col { padding: 1.15rem; }
.compare-col:nth-child(1) { border-top: 3px solid var(--cyan); }
.compare-col:nth-child(2) { border-top: 3px solid var(--blue); }
.compare-col:nth-child(3) { border-top: 3px solid var(--violet); }
.compare-col ol { margin: .8rem 0 0; padding-left: 1.1rem; color: #d5e6f8; }
.mile-layout, .guard-layout, .faq-layout, .form-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 1.2rem; align-items: start; }
.mile-list { display: grid; gap: .75rem; }
.mile {
 position: relative; display: grid; grid-template-columns: 72px 1fr; gap: .8rem;
 padding: .85rem 1rem; border-radius: 18px; border: 1px solid var(--line); background: rgba(8, 20, 42, .62);
}
.mile b { color: var(--cyan); font-size: .95rem; }
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr; gap: .9rem; padding: .65rem; align-items: center; }
.news-row img { width: 168px; height: 112px; object-fit: cover; border-radius: 16px; }
.news-copy { padding-right: .4rem; }
.check-list { display: grid; gap: .7rem; }
.check-item { display: flex; gap: .75rem; padding: .9rem 1rem; }
.check-item i { color: var(--ok); margin-top: .25rem; }
.guard-photo { border-radius: var(--radius); overflow: hidden; min-height: 100%; border: 1px solid var(--line); box-shadow: var(--shadow); }
.guard-photo img { min-height: 320px; }
.faq-list { display: grid; gap: .7rem; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary {
 cursor: pointer; list-style: none; padding: .95rem 1.05rem; font-weight: 700;
 display: flex; justify-content: space-between; gap: .8rem; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "+"; color: var(--cyan); font-size: 1.3rem; line-height: 1; }
.faq-item[open] summary:after { content: "–"; }
.faq-item[open] { box-shadow: var(--glow); }
.faq-item p { padding: 0 1.05rem 1rem; }
.quick-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; margin-bottom: 1rem; }
.q-card, .result-card { padding: 1rem; }
.q-card strong, .result-card strong { display: block; color: #fff; font-size: 1.05rem; }
.form-card { padding: 1.15rem; }
.form-label { color: #d7e7f7; font-weight: 600; font-size: .92rem; }
.form-control, .form-select {
 background: rgba(4, 12, 24, .75); border: 1px solid var(--line); color: var(--ink);
 border-radius: 14px; min-height: 48px;
}
.form-control:focus, .form-select:focus {
 background: rgba(4, 12, 24, .92); color: #fff; border-color: var(--cyan);
 box-shadow: var(--glow);
}
.form-select option { background: #0c2140; color: #fff; }
.form-note { margin-top: .85rem; padding: .8rem .9rem; border-radius: 14px; background: rgba(62, 224, 162, .12); color: #d9fff0; border: 1px solid rgba(62, 224, 162, .35); }
.site-foot { padding: 3rem 0 1.4rem; background: #040b16; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-foot h2 { font-size: 1.05rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li + li { margin-top: .35rem; }
.site-foot a { transition: .2s ease; }
.site-foot a:hover { color: var(--cyan); }
.copy { margin-top: 1.4rem; border-top: 1px solid var(--line); padding-top: 1rem; font-size: .88rem; }
@media (max-width: 1024px) {
 .metric-board, .quick-row { grid-template-columns: 1fr 1fr; }
 .matrix-layout, .mile-layout, .guard-layout, .faq-layout, .form-layout { grid-template-columns: 1fr; }
 .wide-bar { grid-template-columns: 1fr; }
 .nav-toggle { display: flex; }
 .head-bar { flex-wrap: wrap; }
 #menuChinh.collapse { display: none; }
 #menuChinh.collapse.show { display: flex; flex-direction: column; align-items: stretch; width: 100%; padding: .2rem 0 .95rem; }
 #menuChinh.collapse.show a { display: block; }
}
@media (min-width: 1025px) {
 .nav-toggle { display: none !important; }
 #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible; }
}
@media (max-width: 768px) {
 .section, .desk-hero { padding: 3.1rem 0; }
 .compare-grid, .foot-grid { grid-template-columns: 1fr; }
 .news-row { grid-template-columns: 1fr; }
 .news-row img { width: 100%; height: 180px; }
 .metric-board, .quick-row, .entry-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
 .metric-board, .quick-row, .entry-grid, .mile { grid-template-columns: 1fr; }
 .hero-actions .btn { width: 100%; }
 .brand small { display: block; }
 h1 { font-size: 1.85rem; }
 .head-bar { min-height: 70px; }
}

/* roulang page: category7 */
:root {
 --bg: #06101c;
 --bg-2: #08172c;
 --bg-3: #0c2140;
 --ink: #e8f3ff;
 --muted: #9eb4cc;
 --line: rgba(140, 196, 255, .28);
 --cyan: #3de1ff;
 --blue: #3d8bff;
 --violet: #9b7bff;
 --glass: rgba(8, 20, 42, .68);
 --glass-2: rgba(12, 30, 60, .82);
 --radius: 22px;
 --shadow: 0 22px 50px rgba(2, 8, 20, .42);
 --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
 --ok: #3ee0a2;
 --warn: #ffc15a;
 --hot: #ff6b8a;
}
/* roulang page: category7 hoi vien */
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: "Be Vietnam Pro", sans-serif;
 color: var(--ink);
 background:
  radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
  radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
  var(--bg);
 line-height: 1.7;
 font-size: 16px;
 overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.container { max-width: 1140px; }
.site-head {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(6, 16, 28, .88);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(16px);
}
.head-bar {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 1rem;
 min-height: 78px;
}
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
 width: 44px; height: 44px; border-radius: 14px;
 display: grid; place-items: center;
 font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
 box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.nav-toggle {
 width: 46px; height: 46px; border-radius: 14px;
 border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
 display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
 color: #d5e4f5; font-weight: 600; font-size: .92rem;
 padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
 color: #041018;
 background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.member-hero { position: relative; padding: 3.4rem 0 2.6rem; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
 position: absolute; inset: 0;
 background:
  linear-gradient(100deg, rgba(4, 10, 22, .92) 12%, rgba(4, 10, 22, .72) 58%, rgba(4, 10, 22, .55)),
  radial-gradient(520px 240px at 78% 18%, rgba(61, 225, 255, .22), transparent 70%);
}
.member-hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1.4rem; align-items: center; }
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .45rem; letter-spacing: .04em; text-transform: uppercase; font-size: .82rem; }
.member-hero h1 { font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.12; font-weight: 800; margin: 0 0 .8rem; max-width: 680px; }
.hero-lead { max-width: 640px; color: #d7e7f8; margin-bottom: 1rem; }
.badge-row, .chips, .pill-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.badge-soft, .chip, .pill {
 border-radius: 999px;
 border: 1px solid var(--line);
 background: rgba(8, 20, 40, .7);
 color: #e7f3ff;
 padding: .38rem .8rem;
 font-weight: 700;
 font-size: .86rem;
}
.badge-hot { color: #041018; background: linear-gradient(120deg, #ffd27a, #ff8aa8); border-color: transparent; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.1rem; }
.btn-glow, .btn-line {
 border-radius: 999px !important;
 font-weight: 700;
 padding: .72rem 1.15rem;
 transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
 display: inline-flex;
 align-items: center;
 gap: .45rem;
}
.btn-glow {
 color: #041018 !important;
 border: 0 !important;
 background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
 box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
 color: var(--ink) !important;
 background: transparent !important;
 border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.glass-card, .q-card, .result-card, .feature-main, .side-card, .news-row, .quote, .compare-col, .faq-item, .check-item, .rank-card, .mile-item, .stat-tile {
 border: 1px solid var(--line);
 background: var(--glass);
 border-radius: var(--radius);
 box-shadow: var(--shadow);
 backdrop-filter: blur(16px);
}
.ingredient { padding: 1rem; display: grid; gap: .7rem; }
.ingredient h2 { font-size: 1.15rem; margin: 0; }
.check-item { display: flex; gap: .75rem; padding: .75rem .85rem; align-items: flex-start; }
.check-item i { color: var(--cyan); margin-top: .2rem; }
.check-item p, .pad p, .quote p, .rank-card p, .news-copy p, .mile-item p, .faq-item p { color: var(--muted); margin: 0; }
.check-item strong, .news-copy h3, .mile-item h3, .rank-card h3 { display: block; color: #fff; margin-bottom: .15rem; }
.block { padding: 4rem 0; }
.block-alt {
 background: linear-gradient(180deg, rgba(8, 23, 44, .2), rgba(8, 23, 44, .72));
 border-top: 1px solid rgba(140, 196, 255, .12);
 border-bottom: 1px solid rgba(140, 196, 255, .12);
}
.section-kicker { color: var(--cyan); font-weight: 700; font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: .35rem; }
.split-head { display: flex; justify-content: space-between; gap: 1.5rem; align-items: end; margin-bottom: 1.3rem; }
.split-head h2, .block h2 { font-size: clamp(1.55rem, 2.4vw, 2.15rem); line-height: 1.2; font-weight: 800; margin: 0; }
.split-head p { max-width: 420px; color: var(--muted); margin: 0; }
.stat-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: .8rem; }
.stat-tile { padding: 1rem 1.05rem; min-height: 148px; transition: .22s ease; }
.stat-tile:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.stat-tile span { color: var(--muted); font-size: .88rem; }
.stat-tile strong { display: block; font-size: 2rem; line-height: 1.1; margin: .35rem 0; color: #fff; }
.stat-tile em { font-style: normal; color: #b7f6ff; font-weight: 700; font-size: .86rem; }
.stat-lead { background: linear-gradient(160deg, rgba(18, 48, 92, .88), rgba(8, 18, 38, .86)); }
.benefit-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 1rem; align-items: stretch; }
.media { aspect-ratio: 16/11; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.media img, .news-row img, .shield-photo img { width: 100%; height: 100%; object-fit: cover; }
.feature-main { overflow: hidden; height: 100%; }
.pad { padding: 1.05rem 1.1rem 1.2rem; }
.point-list { display: grid; gap: .7rem; }
.point-list article {
 display: grid;
 grid-template-columns: 54px 1fr;
 gap: .8rem;
 align-items: center;
 padding: .85rem;
 border-radius: 18px;
 border: 1px solid var(--line);
 background: rgba(8, 20, 42, .55);
 transition: .2s ease;
}
.point-list article:hover { border-color: rgba(61, 225, 255, .7); box-shadow: var(--glow); }
.ico {
 width: 54px; height: 54px; border-radius: 16px;
 display: grid; place-items: center;
 color: #041018; font-size: 1.15rem;
 background: linear-gradient(140deg, #7af7ff, #6d93ff);
}
.rank-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.rank-card { padding: 1rem; position: relative; overflow: hidden; transition: .22s ease; }
.rank-card:hover, .rank-card.is-top { transform: translateY(-4px); box-shadow: var(--glow); }
.rank-card.is-top { background: linear-gradient(180deg, rgba(24, 54, 104, .9), rgba(8, 18, 38, .9)); }
.rank-card h3 { font-size: 1.2rem; margin: .35rem 0; }
.meter { height: 8px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; margin: .7rem 0; }
.meter span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #3de1ff, #9b7bff); }
.w40 { width: 40%; } .w62 { width: 62%; } .w80 { width: 80%; } .w100 { width: 100%; }
.rank-card ul { margin: .4rem 0 0; padding: 0; list-style: none; display: grid; gap: .35rem; color: #d5e6f8; font-size: .92rem; }
.rank-card li i { color: var(--ok); margin-right: .35rem; }
.mile-wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 1rem; }
.mile-line { display: grid; gap: 0; position: relative; }
.mile-item { display: grid; grid-template-columns: 74px 1fr; gap: .2rem; padding: .9rem 1rem; margin-bottom: .7rem; }
.step-no {
 width: 52px; height: 52px; border-radius: 16px;
 display: grid; place-items: center; font-weight: 800; color: #041018;
 background: linear-gradient(140deg, #7af7ff, #8d7bff);
}
.side-photo { position: relative; min-height: 100%; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); }
.side-photo img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.side-photo figcaption {
 position: absolute; left: .8rem; right: .8rem; bottom: .8rem;
 background: rgba(6, 16, 32, .78); border: 1px solid var(--line);
 border-radius: 16px; padding: .8rem .9rem; backdrop-filter: blur(10px);
}
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr auto; gap: .9rem; padding: .7rem; align-items: center; transition: .2s ease; }
.news-row:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.news-row img { width: 168px; height: 112px; object-fit: cover; border-radius: 16px; }
.news-copy h3 { font-size: 1.05rem; margin: 0 0 .25rem; }
.tag { color: #b7f6ff; font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.time-pill { color: #041018; background: #7af7ff; border-radius: 999px; padding: .35rem .7rem; font-weight: 800; font-size: .82rem; white-space: nowrap; }
.shield { position: relative; overflow: hidden; border-radius: 28px; border: 1px solid var(--line); min-height: 360px; }
.shield-photo { position: absolute; inset: 0; }
.shield-photo img { width: 100%; height: 100%; object-fit: cover; }
.shield-mask { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,10,22,.92), rgba(4,10,22,.62)); }
.shield-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 1rem; padding: 1.3rem; }
.quote { padding: 1rem 1.05rem; }
.faq-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; }
.faq-item { padding: 0; margin-bottom: .7rem; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 1rem 1.05rem; font-weight: 700; display: flex; justify-content: space-between; gap: 1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "+"; color: var(--cyan); font-size: 1.3rem; line-height: 1; }
.faq-item[open] summary:after { content: "–"; }
.faq-item[open] { box-shadow: var(--glow); }
.faq-item p { padding: 0 1.05rem 1rem; }
.note-card { padding: 1.15rem; height: 100%; background: linear-gradient(180deg, rgba(18, 48, 92, .8), rgba(8, 18, 38, .9)); }
.note-card ol { margin: .6rem 0 0; padding-left: 1.1rem; color: #d7e7f8; }
.form-shell { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1rem; align-items: stretch; }
.form-copy { padding: 1.3rem; }
.ticket-form { padding: 1.1rem; display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.field { display: flex; flex-direction: column; gap: .35rem; }
.field.full { grid-column: 1 / -1; }
.field span { font-weight: 600; font-size: .92rem; }
.field input, .field select, .field textarea {
 background: rgba(5, 14, 28, .72);
 color: var(--ink);
 border: 1px solid var(--line);
 border-radius: 14px;
 min-height: 48px;
 padding: .65rem .8rem;
 transition: border-color .2s ease, box-shadow .2s ease;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
 border-color: var(--cyan);
 box-shadow: var(--glow);
 outline: none;
}
.age-line { display: flex; gap: .6rem; align-items: flex-start; color: #d7e7f8; font-size: .92rem; }
.age-line input { margin-top: .35rem; accent-color: #3d8bff; }
.form-note { min-height: 1.4rem; margin: 0; font-weight: 600; }
.form-note.is-ok { color: var(--ok); }
.form-note.is-warn { color: var(--warn); }
.site-foot { padding: 2.4rem 0 1.4rem; border-top: 1px solid var(--line); background: #040b16; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.2rem; }
.site-foot h2 { font-size: 1.05rem; margin: 0 0 .45rem; }
.site-foot p, .site-foot li { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .3rem; }
.site-foot a { color: #d5e8ff; }
.site-foot a:hover { color: var(--cyan); }
.copy { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid rgba(140, 196, 255, .16); font-size: .92rem; }
@media (max-width: 1024px) {
 .stat-grid, .rank-grid { grid-template-columns: 1fr 1fr; }
 .hero-grid, .benefit-layout, .mile-wrap, .shield-grid, .faq-layout, .form-shell { grid-template-columns: 1fr; }
 .side-photo img { min-height: 280px; }
}
@media (min-width: 992px) {
 .nav-toggle { display: none !important; }
 .head-menu.collapse { display: flex !important; height: auto !important; visibility: visible; }
}
@media (max-width: 991.98px) {
 .nav-toggle { display: flex; }
 .head-bar { flex-wrap: wrap; padding-top: .7rem; padding-bottom: .7rem; }
 .head-menu { flex: 1 0 100%; flex-direction: column; align-items: stretch; gap: .25rem; padding-bottom: .8rem; }
 .head-menu a { display: block; }
}
@media (max-width: 768px) {
 .block { padding: 3rem 0; }
 .split-head { flex-direction: column; align-items: flex-start; }
 .news-row { grid-template-columns: 112px 1fr; }
 .news-row img { width: 112px; height: 92px; }
 .time-pill { grid-column: 2; justify-self: start; }
 .ticket-form { grid-template-columns: 1fr; }
 .member-hero h1 { font-size: 2rem; }
}
@media (max-width: 520px) {
 .stat-grid, .rank-grid { grid-template-columns: 1fr; }
 .brand { min-width: 0; }
 .brand small { font-size: .68rem; }
 .news-row { grid-template-columns: 1fr; }
 .news-row img { width: 100%; height: 160px; }
 .time-pill { grid-column: auto; }
 .hero-actions .btn-glow, .hero-actions .btn-line { width: 100%; justify-content: center; }
 .mile-item { grid-template-columns: 58px 1fr; }
 .foot-grid { grid-template-columns: 1fr; }
}

/* roulang page: category6 */
:root {
  --bg: #06101c;
  --bg-2: #08172c;
  --bg-3: #0c2140;
  --ink: #e8f3ff;
  --muted: #9eb4cc;
  --line: rgba(140, 196, 255, .28);
  --cyan: #3de1ff;
  --blue: #3d8bff;
  --violet: #9b7bff;
  --glass: rgba(8, 20, 42, .68);
  --glass-2: rgba(12, 30, 60, .82);
  --radius: 22px;
  --shadow: 0 22px 50px rgba(2, 8, 20, .42);
  --glow: 0 0 0 1px rgba(61, 225, 255, .35), 0 0 26px rgba(61, 139, 255, .38);
  --ok: #3ee0a2;
  --warn: #ffc15a;
  --hot: #ff6b8a;
}
/* roulang page: category6 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 92% -8%, rgba(61, 225, 255, .16), transparent 55%),
    radial-gradient(760px 380px at -12% 16%, rgba(155, 123, 255, .18), transparent 50%),
    var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.container { max-width: 1140px; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { font-size: clamp(2rem, 4.2vw, 3.45rem); line-height: 1.12; font-weight: 800; letter-spacing: -0.03em; margin: 0 0 .8rem; }
h2 { font-size: clamp(1.45rem, 2.4vw, 2.05rem); line-height: 1.25; font-weight: 800; margin: 0 0 .55rem; }
h3 { font-size: 1.08rem; line-height: 1.35; margin: 0 0 .4rem; }
.brand { display: flex; align-items: center; gap: .75rem; min-width: 210px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  font-weight: 800; color: #041018;
  background: linear-gradient(140deg, #7af7ff, #4d8dff 55%, #b08bff);
  box-shadow: var(--glow);
}
.brand strong { display: block; font-size: 1.05rem; line-height: 1.1; letter-spacing: .02em; }
.brand small { color: var(--cyan); font-size: .75rem; }
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 16, 28, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.head-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 78px; }
.nav-toggle {
  width: 46px; height: 46px; border-radius: 14px;
  border: 1px solid var(--line); background: rgba(8, 22, 44, .8);
  display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  margin-left: auto;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: #fff; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.head-menu { align-items: center; gap: .2rem; }
.head-menu a {
  color: #d5e4f5; font-weight: 600; font-size: .92rem;
  padding: .42rem .72rem; border-radius: 999px; transition: .2s ease;
}
.head-menu a:hover, .head-menu a.active, .head-menu a:focus-visible {
  color: #041018;
  background: linear-gradient(120deg, #7af7ff, #4d8dff);
}
.band-a { background: rgba(7, 18, 36, .92); }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 10, 22, .72), rgba(4, 10, 22, .9)),
    radial-gradient(600px 280px at 80% 20%, rgba(61, 225, 255, .2), transparent 70%);
}
.brand-line { color: #b7f6ff; font-weight: 700; margin-bottom: .4rem; }
.q-card, .result-card, .glass-card, .kpi-card, .side-mini, .compare-col, .mile-list li, .news-row, .check-item, .faq-item, .quote, .ticket-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.q-card, .result-card, .kpi-card { padding: 1rem; }
.pad { padding: 1rem 1.05rem 1.15rem; }
.pad p, .quote p, .check-item p { color: var(--muted); margin: 0; }
.btn-glow, .btn-line {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  border-radius: 999px !important;
  font-weight: 700;
  padding: .72rem 1.15rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn-glow {
  color: #041018 !important;
  border: 0 !important;
  background-image: linear-gradient(120deg, #7af7ff, #3d8bff 48%, #a78bfa) !important;
  box-shadow: 0 0 22px rgba(61, 225, 255, .45);
}
.btn-glow:hover, .btn-glow:focus { color: #041018 !important; transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 225, 255, .62); }
.btn-glow:active { transform: translateY(1px) scale(.99); }
.btn-line {
  color: var(--ink) !important;
  background: transparent !important;
  border: 1px solid var(--line) !important;
}
.btn-line:hover, .btn-line:focus { color: #fff !important; border-color: var(--cyan) !important; box-shadow: var(--glow); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  border-radius: 999px; border: 1px solid var(--line); background: rgba(8, 20, 40, .7);
  color: #e7f3ff; padding: .45rem .85rem; font-weight: 700;
  transition: .2s ease;
}
.chip.is-on, .chip:hover { color: #041018; background: linear-gradient(120deg, #7af7ff, #6aa2ff); box-shadow: var(--glow); }
.tag { display: inline-flex; align-items: center; border-radius: 999px; padding: .12rem .55rem; font-size: .75rem; font-weight: 700; border: 1px solid var(--line); color: #d7f4ff; }
.tag.hot { color: #ffd0dc; border-color: rgba(255,107,138,.5); background: rgba(255,107,138,.12); }
.tag.ok { color: #d9ffef; border-color: rgba(62,224,162,.45); background: rgba(62,224,162,.12); }
.tag.warn { color: #ffe7bf; border-color: rgba(255,193,90,.5); background: rgba(255,193,90,.12); }
.heat-badges { display: flex; flex-wrap: wrap; gap: .5rem; margin: .2rem 0 1rem; }
.heat-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  border-radius: 999px; padding: .35rem .75rem; font-weight: 700; font-size: .82rem;
  background: rgba(255, 107, 138, .15); color: #ffd0dc; border: 1px solid rgba(255, 107, 138, .45);
}
.heat-badge.cool { background: rgba(61, 225, 255, .12); color: #d8f8ff; border-color: rgba(61, 225, 255, .4); }
.heat-badge.ok { background: rgba(62, 224, 162, .12); color: #d9ffef; border-color: rgba(62, 224, 162, .4); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hot); box-shadow: 0 0 10px var(--hot); }
.offer-hero { position: relative; padding: 4.5rem 0 5.4rem; overflow: hidden; }
.offer-hero .hero-mask {
  background:
    linear-gradient(90deg, rgba(4,10,22,.94) 8%, rgba(4,10,22,.78) 48%, rgba(4,10,22,.62)),
    linear-gradient(180deg, rgba(4,10,22,.35), rgba(4,10,22,.88));
}
.offer-hero .container { position: relative; z-index: 2; }
.crumb { display: flex; gap: .45rem; align-items: center; color: var(--muted); font-size: .88rem; margin-bottom: .9rem; }
.crumb a { color: #d7f6ff; }
.crumb a:hover { color: #fff; }
.hero-lead { max-width: 640px; color: #d7e7f8; margin-bottom: .2rem; }
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 1.2rem; align-items: stretch; }
.poster-side { position: relative; min-height: 460px; overflow: hidden; border-radius: 28px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.poster-side img { width: 100%; height: 100%; object-fit: cover; min-height: 460px; }
.poster-side .cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 1.15rem;
  background: linear-gradient(180deg, transparent, rgba(4,10,20,.94));
}
.rank { list-style: none; margin: .8rem 0 0; padding: 0; display: grid; gap: .55rem; }
.rank li {
  display: flex; justify-content: space-between; gap: .7rem; align-items: center;
  padding: .72rem .85rem; border-radius: 16px;
  background: rgba(5, 14, 30, .72); border: 1px solid var(--line);
}
.rank b { font-weight: 700; }
.rank span { color: var(--muted); font-size: .86rem; }
.kpi-board { margin-top: -2.6rem; position: relative; z-index: 3; padding-bottom: 1.2rem; }
.kpi-label { color: var(--muted); margin: 0 0 .7rem; }
.of-kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.kpi-card b { display: block; font-size: 1.75rem; line-height: 1.1; color: #fff; }
.kpi-card em { font-style: normal; color: var(--cyan); font-weight: 700; font-size: .76rem; letter-spacing: .04em; }
.kpi-card span { color: var(--muted); display: block; }
.offer-matrix, .compare-band, .mile-band, .offer-news, .faq-band, .ticket-band { padding: 4.2rem 0; }
.offer-matrix { background: rgba(8, 20, 40, .42); }
.mile-band { background: rgba(7, 18, 36, .92); }
.faq-band { background: linear-gradient(180deg, rgba(8, 23, 44, .2), rgba(12, 33, 64, .45)); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.15rem; }
.section-head p, .lead-note { color: var(--muted); margin: 0; max-width: 620px; }
.of-matrix-grid { display: grid; grid-template-columns: 1.35fr .78fr; gap: .9rem; }
.of-stack { display: grid; gap: .9rem; }
.poster-card { position: relative; overflow: hidden; min-height: 100%; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); }
.poster-card img { width: 100%; height: 100%; object-fit: cover; min-height: 460px; }
.poster-card .cap, .side-mini .cap {
  position: absolute; inset: auto 0 0 0; padding: 1.1rem 1.15rem 1.15rem;
  background: linear-gradient(180deg, transparent, rgba(4,10,20,.94));
}
.side-mini { position: relative; overflow: hidden; min-height: 214px; transition: transform .22s ease, box-shadow .22s ease; }
.side-mini img { width: 100%; height: 214px; object-fit: cover; }
.poster-card:hover, .side-mini:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.compare-grid { display: grid; grid-template-columns: .82fr 1fr 1fr; gap: .9rem; align-items: stretch; }
.compare-col { padding: 1.15rem 1.15rem 1.2rem; }
.compare-col h3 { margin-top: 0; }
.compare-col ul { list-style: none; margin: .8rem 0 0; padding: 0; }
.compare-col li { position: relative; padding: .62rem 0 .62rem 1.55rem; border-bottom: 1px solid rgba(140,196,255,.12); color: #d5e6f8; }
.compare-col li i { position: absolute; left: 0; top: .78rem; color: var(--cyan); }
.compare-col.gold { background: linear-gradient(180deg, rgba(28, 42, 78, .88), rgba(8, 18, 38, .9)); box-shadow: var(--glow); }
.compare-col.gold li i { color: var(--warn); }
.intro-card h2 { margin-bottom: .6rem; }
.mile-list { list-style: none; margin: 1.2rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: .8rem; position: relative; }
.mile-list::before {
  content: ""; position: absolute; left: 6%; right: 6%; top: 34px; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}
.mile-list li { position: relative; padding: 1rem; }
.mile-list strong { display: block; color: #fff; font-size: 1.15rem; }
.mile-list span { color: var(--muted); display: block; }
.news-list { display: grid; gap: .75rem; }
.news-row { display: grid; grid-template-columns: 168px 1fr; gap: .9rem; padding: .7rem; align-items: center; transition: .2s ease; }
.news-row:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.news-row img { width: 100%; height: 112px; object-fit: cover; border-radius: 16px; }
.news-row p { margin: .25rem 0 0; color: var(--muted); }
.meta-line { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; margin-bottom: .25rem; }
.assure-band { position: relative; overflow: hidden; padding: 4.4rem 0; }
.assure-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.assure-mask { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(4,10,20,.92), rgba(4,10,20,.78)); }
.assure-band .container { position: relative; z-index: 1; }
.assure-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: .9rem; }
.quote { padding: 1.2rem; }
.quote h2 { margin-bottom: .7rem; }
.check-list { display: grid; gap: .7rem; }
.check-item { display: grid; grid-template-columns: 42px 1fr; gap: .75rem; padding: .9rem 1rem; align-items: start; }
.check-ico {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  color: #041018; background: linear-gradient(140deg, #7af7ff, #6aa2ff);
}
.fact-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; margin-top: .9rem; }
.fact-row article { padding: .9rem 1rem; }
.fact-row strong { display: block; color: #fff; }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 1.2rem; align-items: start; }
.faq-item { padding: 0; margin-bottom: .7rem; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 1rem 1.1rem; font-weight: 700;
  display: flex; justify-content: space-between; gap: .8rem; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--cyan); font-size: 1.3rem; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item[open] { box-shadow: var(--glow); }
.faq-item .ans { padding: 0 1.1rem 1rem; color: var(--muted); }
.ticket-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 1rem; align-items: stretch; }
.ticket-visual { position: relative; overflow: hidden; min-height: 100%; border-radius: var(--radius); border: 1px solid var(--line); }
.ticket-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.ticket-visual .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 1.15rem; background: linear-gradient(180deg, transparent, rgba(4,10,20,.92)); }
.ticket-card { padding: 1.2rem; }
.form-label { color: #d7e8fa; font-weight: 600; margin-bottom: .35rem; }
.ticket-card .form-control, .ticket-card .form-select {
  background: rgba(4, 12, 24, .72);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 14px;
  min-height: 48px;
}
.ticket-card textarea.form-control { min-height: 96px; }
.ticket-card .form-control:focus, .ticket-card .form-select:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow);
  background: rgba(4, 12, 24, .92);
  color: #fff;
}
.ticket-card .form-check-input { border-color: var(--line); background-color: transparent; }
.ticket-card .form-check-input:checked { background-color: var(--blue); border-color: var(--cyan); }
.form-msg { min-height: 1.5em; margin: .75rem 0 0; font-weight: 600; }
.form-msg.bad { color: var(--hot); }
.form-msg.ok { color: var(--ok); }
.fine { color: var(--muted); font-size: .88rem; margin: .7rem 0 0; }
.site-foot { padding: 3rem 0 1.4rem; border-top: 1px solid var(--line); background: #040b16; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-foot h2 { font-size: 1.05rem; }
.site-foot p { color: var(--muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li { margin: .35rem 0; color: var(--muted); }
.site-foot a { color: #d5e8ff; }
.site-foot a:hover { color: var(--cyan); }
.copy { color: var(--muted); font-size: .88rem; margin-top: 1.4rem; border-top: 1px solid var(--line); padding-top: 1rem; }
@media (max-width: 1100px) {
  .head-menu a { padding: .38rem .52rem; font-size: .84rem; }
}
@media (min-width: 992px) {
  #menuChinh.collapse { display: flex !important; height: auto !important; visibility: visible; }
}
@media (max-width: 1024px) {
  .of-kpi-grid, .fact-row { grid-template-columns: repeat(2, 1fr); }
  .mile-list { grid-template-columns: repeat(3, 1fr); }
  .mile-list::before { display: none; }
  .compare-grid { grid-template-columns: 1fr 1fr; }
  .intro-card { grid-column: 1 / -1; }
}
@media (max-width: 991.98px) {
  .nav-toggle { display: flex; }
  .head-bar { flex-wrap: wrap; }
  .head-menu { flex-basis: 100%; flex-direction: column; align-items: stretch; padding: .45rem; margin: 0 0 .8rem; background: rgba(6, 14, 28, .96); border: 1px solid var(--line); border-radius: 16px; }
  .head-menu a { display: block; }
}
@media (max-width: 768px) {
  .offer-hero { padding: 3.2rem 0 4.4rem; }
  .hero-grid, .of-matrix-grid, .compare-grid, .assure-grid, .faq-layout, .ticket-grid, .foot-grid { grid-template-columns: 1fr; }
  .poster-side, .poster-side img, .poster-card img { min-height: 280px; }
  .mile-list { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 120px 1fr; }
  .offer-matrix, .compare-band, .mile-band, .offer-news, .faq-band, .ticket-band, .assure-band { padding: 3rem 0; }
}
@media (max-width: 520px) {
  .of-kpi-grid, .fact-row { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 1fr; }
  .news-row img { height: 180px; }
  .hero-actions .btn-glow, .hero-actions .btn-line, .ticket-card .btn-glow { width: 100%; }
  .brand { min-width: 0; }
  h1 { font-size: 1.85rem; }
  .kpi-board { margin-top: -1.6rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}