/* roulang page: index */
:root {
  --blue: #1f6feb;
  --blue-deep: #16325c;
  --blue-ink: #10243f;
  --blue-soft: #e7f1fc;
  --blue-mist: #f4f8fc;
  --ink: #17233b;
  --muted: #5c6b82;
  --line: #e1e8f2;
  --white: #ffffff;
  --gold: #9a7340;
  --ok: #0e8f62;
  --warn: #b86e12;
  --danger: #b42318;
  --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
  --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
  --header: 78px;
  --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
  backdrop-filter: blur(12px);
}
.header-row {
  min-height: var(--header);
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center;
  background: var(--blue-deep); color: #fff; font-size: 20px;
  box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-links a {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 210px; }
.nav-search i {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 13px;
}
.nav-search input {
  width: 100%;
  min-height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--blue-mist);
  padding: 0 14px 0 36px;
  color: var(--ink);
}
.nav-cta { white-space: nowrap; }
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue-deep);
}
.drawer { display: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 18px;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(31,111,235,.28);
  outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.hero {
  position: relative;
  padding: 54px 0 36px;
  background:
    linear-gradient(100deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.9) 46%, rgba(244,248,252,.72) 100%),
    url("/assets/images/a7641a47e839d52b.webp") center/cover no-repeat;
}
.hero-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 36px; align-items: center; }
.hero h1 { font-size: 52px; line-height: 1.12; letter-spacing: -1px; color: var(--blue-ink); }
.hero-lead { margin-top: 18px; color: var(--muted); font-size: 17px; max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.kpi-row { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 28px; max-width: 520px; }
.kpi {
  background: rgba(255,255,255,.86);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}
.kpi strong { display: block; color: var(--blue-deep); font-size: 15px; }
.kpi span { color: var(--muted); font-size: 13px; }
.hero-visual { position: relative; min-height: 520px; }
.hero-visual img {
  width: 86%;
  height: 500px;
  object-fit: cover;
  margin-left: auto;
  border-radius: 32px;
  box-shadow: 0 30px 60px rgba(16,36,63,.18);
  transform: rotate(-3.5deg) translate(18px, 10px);
}
.hero-visual::before {
  content: "";
  position: absolute;
  width: 78%;
  height: 430px;
  right: 8px;
  bottom: 18px;
  border: 1px solid rgba(31,111,235,.28);
  border-radius: 32px;
  transform: rotate(4deg);
}
.hero-chip {
  position: absolute;
  left: 0; bottom: 46px;
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 14px 16px;
  display: flex; gap: 10px; align-items: center;
  width: 230px;
}
.hero-chip i { color: var(--ok); font-size: 20px; }
.hero-chip b { display: block; font-size: 14px; }
.hero-chip span { color: var(--muted); font-size: 12px; }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); }
.lead { margin-top: 12px; color: var(--muted); }
.countdown-wrap {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.time-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.time-box {
  background: var(--blue-deep);
  color: #fff;
  border-radius: 18px;
  text-align: center;
  padding: 16px 8px;
}
.time-box b { display: block; font-size: 34px; line-height: 1; }
.time-box span { font-size: 12px; opacity: .8; }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.highlight-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; }
.photo-card, .panel, .ticket, .quote, .topic, .scene, .form-card, .log-list, .roadmap {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.photo-card { overflow: hidden; }
.photo-card img { width: 100%; height: 430px; object-fit: cover; }
.photo-card div { padding: 22px; }
.stack { display: grid; gap: 14px; }
.mini {
  padding: 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}
.mini h3 { font-size: 18px; margin-bottom: 6px; }
.mini p, .ticket p, .quote p, .topic p, .scene p, .step p, .phase p { color: var(--muted); }
.ladder { display: grid; gap: 14px; }
.ladder-row {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.ladder-row strong.mark {
  width: 92px; height: 64px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--blue-soft); color: var(--blue-deep);
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border-radius: 999px; padding: 6px 10px;
  background: #f8f1e6; color: var(--gold); font-size: 13px; font-weight: 700;
}
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; position: relative; }
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow-sm);
  min-height: 210px;
}
.step em {
  display: grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); color: #fff; font-style: normal; font-weight: 800;
  margin-bottom: 12px;
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.reward-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 16px; }
.ticket { overflow: hidden; }
.ticket img { width: 100%; height: 180px; object-fit: cover; }
.ticket.large img { height: 300px; }
.ticket div { padding: 16px 16px 18px; }
.ticket h3 { margin: 8px 0; font-size: 20px; }
.badge {
  display: inline-flex; align-items: center; border-radius: 999px;
  padding: 4px 9px; font-size: 12px; font-weight: 700;
  background: var(--blue-soft); color: var(--blue-deep);
}
.badge.live { background: #e8f8f1; color: var(--ok); }
.badge.wait { background: #fff4e5; color: var(--warn); }
.news-list { display: grid; gap: 12px; }
.news-row {
  display: grid;
  grid-template-columns: 168px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 10px;
  box-shadow: var(--shadow-sm);
}
.news-row img { width: 168px; height: 104px; object-fit: cover; border-radius: 12px; }
.news-row h3 { font-size: 18px; }
.news-row p { color: var(--muted); font-size: 14px; }
.more-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 700; }
.more-link:hover { gap: 12px; }
.quote-wall { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; }
.quote { padding: 22px; }
.quote.big { background: var(--blue-deep); color: #fff; }
.quote.big p, .quote.big span { color: rgba(255,255,255,.82); }
.stars { color: #f0b429; letter-spacing: 2px; margin-bottom: 10px; }
.quote h3 { margin-bottom: 8px; }
.quote footer { margin-top: 16px; font-weight: 700; }
.side-quotes { display: grid; gap: 16px; }
.metrics {
  background:
    linear-gradient(180deg, rgba(255,255,255,.93), rgba(231,241,252,.94)),
    url("/assets/images/c1322bbcdc218772.jpg") center/cover no-repeat;
}
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.metric-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.metric-item {
  background: rgba(255,255,255,.9);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.metric-item b { display: block; font-size: 28px; color: var(--blue); line-height: 1.1; }
.stage { display: grid; grid-template-columns: .8fr 1.2fr; gap: 22px; align-items: center; }
.stage-main {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  min-height: 420px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  background: #d9e6f5;
}
.stage-main img { width: 100%; height: 420px; object-fit: cover; }
.stage-nav { position: absolute; left: 16px; bottom: 16px; display: flex; gap: 8px; }
.stage-nav button, .icon-btn {
  width: 42px; height: 42px; border-radius: 50%; border: 0; background: #fff; color: var(--blue-deep);
  box-shadow: var(--shadow-sm);
}
.thumbs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.thumbs button { padding: 0; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #fff; }
.thumbs img { height: 120px; width: 100%; object-fit: cover; }
.topic-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 14px; }
.topic { padding: 20px; min-height: 168px; display: flex; flex-direction: column; justify-content: space-between; transition: transform .2s ease, box-shadow .2s ease; }
.topic:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.topic span { color: var(--blue); font-weight: 800; font-size: 13px; }
.topic h3 { font-size: 22px; margin: 8px 0; }
.roadmap { padding: 8px 8px 8px 0; }
.phase { display: grid; grid-template-columns: 150px 1fr; gap: 16px; padding: 18px 20px; border-top: 1px solid var(--line); }
.phase:first-child { border-top: 0; }
.phase b { color: var(--blue-deep); }
.secure-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: #fff; border: 1px solid var(--line); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-sm); }
.secure-item { padding: 22px; border-right: 1px solid var(--line); }
.secure-item:last-child { border-right: 0; }
.secure-item i { color: var(--blue); font-size: 22px; }
.secure-item h3 { margin: 10px 0 6px; font-size: 18px; }
.secure-item p { color: var(--muted); }
.scene { display: grid; grid-template-columns: 1.05fr .95fr; overflow: hidden; margin-bottom: 16px; }
.scene img { width: 100%; height: 100%; min-height: 250px; object-fit: cover; }
.scene div { padding: 28px; }
.scene.reverse { grid-template-columns: .95fr 1.05fr; }
.scene.reverse img { order: 2; }
.log-list { overflow: hidden; }
.log-row, .log-head {
  display: grid;
  grid-template-columns: 140px 1.4fr .8fr 140px;
  gap: 10px;
  padding: 14px 18px;
  align-items: center;
}
.log-head { background: var(--blue-soft); color: var(--blue-deep); font-size: 13px; font-weight: 800; }
.log-row { border-top: 1px solid var(--line); }
.log-row p { color: var(--muted); font-size: 14px; }
.a11y-bar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px dashed #b9cce4;
  border-radius: 20px;
  padding: 18px 20px;
}
.a11y-bar i { font-size: 28px; color: var(--blue); }
.register-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 22px; align-items: stretch; }
.register-visual { position: relative; border-radius: 28px; overflow: hidden; min-height: 100%; box-shadow: var(--shadow); }
.register-visual img { width: 100%; height: 100%; min-height: 520px; object-fit: cover; }
.register-visual figcaption {
  position: absolute; left: 16px; right: 16px; bottom: 16px;
  background: rgba(255,255,255,.92);
  border-radius: 16px;
  padding: 14px;
}
.form-card { padding: 26px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 700; font-size: 14px; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid #d5e0ee;
  background: #fff;
  border-radius: 12px;
  min-height: 48px;
  padding: 12px 14px;
  color: var(--ink);
}
.field textarea { min-height: 110px; resize: vertical; }
.field input.is-invalid, .field select.is-invalid, .field textarea.is-invalid { border-color: var(--danger); }
.form-actions { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-top: 14px; }
.form-note { color: var(--muted); font-size: 14px; }
.form-result { min-height: 24px; font-weight: 700; color: var(--ok); }
.site-footer { background: #10243f; color: rgba(255,255,255,.82); padding: 48px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr .9fr; gap: 22px; }
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer a { color: rgba(255,255,255,.82); }
.site-footer a:hover { color: #fff; }
.footer-brand { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.footer-brand .brand-mark { background: var(--blue); }
.fine { margin-top: 22px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 14px; font-size: 13px; display: flex; justify-content: space-between; gap: 10px; }
@media (max-width: 1180px) {
  .nav-links, .nav-search, .nav-cta { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .drawer.is-open { display: block; padding-bottom: 16px; }
  .drawer a, .drawer .btn { display: flex; margin-top: 8px; }
  .drawer .nav-search { width: 100%; display: block; }
  .hero h1 { font-size: 42px; }
  .hero-grid, .highlight-grid, .metric-grid, .stage, .register-grid, .quote-wall, .countdown-wrap { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
  .steps, .secure-row { grid-template-columns: 1fr 1fr; }
  .secure-item { border-bottom: 1px solid var(--line); }
  .reward-grid { grid-template-columns: 1fr 1fr; }
  .ticket.large { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { min-height: 0; }
  .hero-visual img { width: 100%; height: 380px; transform: none; margin: 0; }
  .hero-visual::before { display: none; }
  .hero-chip { left: 16px; }
}
@media (max-width: 768px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .section { padding: 58px 0; }
  .hero { padding-top: 32px; }
  .hero h1, .section-head h2, .split-copy h2, .band-copy h2 { font-size: 32px; }
  .kpi-row, .time-grid, .steps, .secure-row, .topic-grid, .reward-grid, .metric-list, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .news-row, .ladder-row, .phase, .log-row, .log-head, .scene, .scene.reverse { grid-template-columns: 1fr; }
  .scene.reverse img { order: 0; }
  .news-row img { width: 100%; height: 180px; }
  .log-head { display: none; }
  .form-actions, .fine { flex-direction: column; align-items: flex-start; }
  .ticket.large { grid-column: auto; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 30px; }
  .brand-text small { max-width: 150px; }
  .hero-actions .btn, .form-actions .btn { width: 100%; }
  .time-box b { font-size: 26px; }
  .photo-card img, .stage-main img, .register-visual img { height: 240px; min-height: 240px; }
}

/* roulang page: category1 */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: tinh-nang */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--white);
 line-height: 1.7;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
 backdrop-filter: blur(12px);
}
.header-row {
 min-height: var(--header);
 display: flex;
 align-items: center;
 gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; }
.brand-mark {
 width: 42px; height: 42px; border-radius: 13px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 20px;
 box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-links a {
 padding: 8px 10px;
 border-radius: 999px;
 color: var(--blue-deep);
 font-size: 14px;
 font-weight: 600;
 white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 210px; }
.nav-search i {
 position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
 color: var(--muted); font-size: 13px;
}
.nav-search input {
 width: 100%;
 min-height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 0 14px 0 36px;
 color: var(--ink);
}
.nav-cta { white-space: nowrap; }
.menu-toggle {
 display: none;
 margin-left: auto;
 width: 44px; height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--blue-deep);
}
.drawer { display: none; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 46px; padding: 0 18px;
 border-radius: 999px; border: 1px solid transparent;
 font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
 outline: 3px solid rgba(31,111,235,.28);
 outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.hero {
 position: relative;
 padding: 54px 0 36px;
 background:
 linear-gradient(100deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.9) 46%, rgba(244,248,252,.72) 100%),
 url("/assets/images/a7641a47e839d52b.webp") center/cover no-repeat;
}
.hero-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 36px; align-items: center; }
.hero h1 { font-size: 52px; line-height: 1.12; letter-spacing: -1px; color: var(--blue-ink); }
.hero-lead { margin-top: 18px; color: var(--muted); font-size: 17px; max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.kpi-row { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 28px; max-width: 520px; }
.hero-visual { position: relative; min-height: 520px; }
.hero-visual img {
 width: 86%;
 height: 500px;
 object-fit: cover;
 margin-left: auto;
 border-radius: 32px;
 box-shadow: 0 30px 60px rgba(16,36,63,.18);
 transform: rotate(-3.5deg) translate(18px, 10px);
}
.hero-visual::before {
 content: "";
 position: absolute;
 width: 78%;
 height: 430px;
 right: 8px;
 bottom: 18px;
 border: 1px solid rgba(31,111,235,.28);
 border-radius: 32px;
 transform: rotate(4deg);
}
.hero-chip {
 position: absolute;
 left: 0; bottom: 46px;
 background: #fff;
 border-radius: 18px;
 box-shadow: var(--shadow);
 padding: 14px 16px;
 display: flex; gap: 10px; align-items: center;
 width: 230px;
}
.hero-chip i { color: var(--ok); font-size: 20px; }
.hero-chip b { display: block; font-size: 14px; }
.hero-chip span { color: var(--muted); font-size: 12px; }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); }
.lead { margin-top: 12px; color: var(--muted); }
.time-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.highlight-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; }
.photo-card, .panel, .ticket, .quote, .topic, .scene, .form-card, .log-list, .roadmap {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow-sm);
}
.photo-card { overflow: hidden; }
.photo-card img { width: 100%; height: 430px; object-fit: cover; }
.photo-card div { padding: 22px; }
.ladder-row {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
}
.ladder-row strong.mark {
 width: 92px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft);
 color: var(--blue-deep);
 font-size: 18px;
}
.ladder-row h3 { margin: 0 0 4px; font-size: 18px; color: var(--blue-ink); }
.ladder-row p { margin: 0; color: var(--muted); }
.ladder-row .badge { justify-self: end; }
.panel, .quote, .ticket, .form-card, .log-list { padding: 22px; }
.quote p { margin: 0 0 14px; font-size: 17px; color: var(--blue-ink); }
.quote b { display: block; font-size: 15px; }
.quote span { color: var(--muted); font-size: 13px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px;
 background: var(--blue-soft); color: var(--blue-deep);
 border-radius: 999px; padding: 5px 10px;
 font-size: 12px; font-weight: 700; white-space: nowrap;
}
.badge.gold { background: #f8f1e6; color: var(--gold); }
.badge.ok { background: #e7f7f0; color: var(--ok); }
.badge.warn { background: #fff4e6; color: var(--warn); }
.site-footer {
 background: var(--blue-ink);
 color: #d5e2f2;
 padding: 56px 0 0;
 margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.footer-brand h2 { font-size: 20px; color: #fff; margin: 0; line-height: 1.3; }
.site-footer h3 { color: #fff; font-size: 16px; margin: 0 0 10px; }
.site-footer p { margin: 0 0 8px; }
.site-footer a { color: #fff; border-bottom: 1px solid transparent; }
.site-footer a:hover { border-bottom-color: rgba(255,255,255,.6); }
.fine {
 display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
 border-top: 1px solid rgba(255,255,255,.12);
 margin-top: 28px; padding: 16px 0 22px;
 color: #b7c6da; font-size: 13px;
}
.sr {
 position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
 overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
.feat-hero { padding: 46px 0 34px; background: linear-gradient(180deg, #f4f8fc 0%, #ffffff 78%); }
.feat-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.crumb a { color: var(--blue-deep); }
.feat-hero h1 { margin: 8px 0 0; font-size: 46px; line-height: 1.14; letter-spacing: -1px; color: var(--blue-ink); max-width: 640px; }
.feat-hero .hero-lead { margin-top: 16px; }
.status-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.status-pill {
 display: inline-flex; align-items: center; gap: 8px;
 background: #fff; border: 1px solid var(--line); border-radius: 999px;
 padding: 8px 12px; box-shadow: var(--shadow-sm);
 font-size: 13px; font-weight: 700; color: var(--blue-deep);
}
.status-pill i { color: var(--ok); }
.icon-matrix { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.icon-cell {
 background: #fff; border: 1px solid var(--line); border-radius: 18px;
 padding: 16px; box-shadow: var(--shadow-sm); min-height: 118px;
 transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.icon-cell:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #c5d8f0; }
.icon-cell i {
 width: 38px; height: 38px; border-radius: 12px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue); margin-bottom: 10px;
}
.icon-cell b { display: block; font-size: 14px; color: var(--blue-ink); }
.icon-cell span { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: center; }
.split.reverse { grid-template-columns: 1.08fr .92fr; }
.split-copy h2 { margin: 8px 0 0; }
.clean { list-style: none; padding: 0; margin: 18px 0 0; }
.clean li {
 display: flex; gap: 10px; align-items: flex-start;
 padding: 12px 0; border-bottom: 1px solid var(--line);
}
.clean i { color: var(--blue); margin-top: 4px; }
.stack { display: grid; gap: 12px; }
.ladder-row { transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.ladder-row:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: #c9d8ea; }
.metric-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.stat-line { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.stat {
 background: #fff; border: 1px solid var(--line); border-radius: 18px;
 padding: 18px; box-shadow: var(--shadow-sm);
}
.stat b { display: block; font-size: 28px; letter-spacing: -.5px; color: var(--blue-ink); line-height: 1.1; }
.stat span { color: var(--muted); font-size: 14px; }
.log-list { display: grid; gap: 0; padding: 8px 22px; }
.log-item { display: grid; grid-template-columns: 92px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.log-item:last-child { border-bottom: 0; }
.log-item strong { color: var(--blue); font-size: 13px; }
.log-item p { margin: 0; }
.voice-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 22px; align-items: stretch; }
.voice-col { display: grid; gap: 14px; }
.portrait { height: 100%; min-height: 360px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }
.fit-row { display: grid; grid-template-columns: .72fr 1.28fr; gap: 28px; align-items: start; }
.scene {
 padding: 18px 18px 16px;
 display: grid; grid-template-columns: 54px 1fr; gap: 12px;
 margin-bottom: 12px;
}
.scene i {
 width: 54px; height: 54px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue-deep); font-size: 18px;
}
.scene h3 { margin: 0 0 4px; font-size: 18px; }
.scene p { margin: 0; color: var(--muted); }
.close-wrap { padding-top: 20px; }
.close-band {
 background: linear-gradient(145deg, #16325c 0%, #1d4e93 62%, #1f6feb 140%);
 border-radius: 28px; padding: 34px;
 display: grid; grid-template-columns: 1fr .92fr; gap: 28px;
 color: #fff; box-shadow: var(--shadow);
}
.close-band h2 { margin: 8px 0 0; font-size: 34px; line-height: 1.25; letter-spacing: -.4px; }
.close-band p { color: rgba(255,255,255,.84); }
.form-card label { display: block; font-size: 13px; font-weight: 700; color: var(--blue-deep); margin: 12px 0 6px; }
.form-card input, .form-card select {
 width: 100%; min-height: 46px; border-radius: 12px;
 border: 1px solid var(--line); background: var(--blue-mist);
 padding: 0 12px; color: var(--ink);
}
.form-card .btn { width: 100%; margin-top: 16px; }
.form-note {
 margin-top: 12px; background: #e7f7f0; color: var(--ok);
 border-radius: 12px; padding: 10px 12px; font-weight: 700;
}
.inline-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
@media (max-width: 1140px) {
 .nav-links, .nav-search { display: none; }
 .menu-toggle { display: grid; place-items: center; }
 .drawer.open { display: block; border-top: 1px solid var(--line); background: #fff; padding: 6px 20px 16px; }
 .drawer a { display: block; padding: 12px 4px; border-bottom: 1px solid var(--line); font-weight: 700; color: var(--blue-deep); }
 .drawer a.active { color: var(--blue); }
 .feat-layout, .split, .split.reverse, .metric-grid, .voice-grid, .fit-row, .close-band, .footer-grid, .highlight-grid {
  grid-template-columns: 1fr;
 }
 .feat-hero h1, .hero h1 { font-size: 38px; }
 .photo-card img, .portrait { height: 320px; min-height: 0; }
}
@media (max-width: 768px) {
 .container { width: min(var(--container), calc(100% - 28px)); }
 .section { padding: 58px 0; }
 .header-row { gap: 10px; }
 .brand { min-width: 0; }
 .brand-text strong { font-size: 16px; }
 .feat-hero { padding: 32px 0 18px; }
 .feat-hero h1, .section-head h2, .split-copy h2, .close-band h2 { font-size: 30px; }
 .icon-matrix, .stat-line, .time-grid { grid-template-columns: 1fr 1fr; }
 .ladder-row { grid-template-columns: 72px 1fr; }
 .ladder-row .badge { grid-column: 2; justify-self: start; }
 .ladder-row strong.mark { width: 72px; height: 56px; }
 .log-item { grid-template-columns: 1fr; gap: 4px; }
 .close-band { padding: 22px; }
 .fine { flex-direction: column; }
}
@media (max-width: 520px) {
 .icon-matrix, .stat-line, .time-grid { grid-template-columns: 1fr; }
 .feat-hero h1 { font-size: 28px; }
 .nav-cta { display: none; }
 .hero-actions, .inline-actions { flex-direction: column; }
 .hero-actions .btn, .inline-actions .btn { width: 100%; }
 .photo-card img, .portrait { height: 230px; }
 .status-pill { width: 100%; }
}

/* roulang page: category2 */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: cai-dat */
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--white);
 line-height: 1.7;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
 backdrop-filter: blur(12px);
}
.header-row {
 min-height: var(--header);
 display: flex;
 align-items: center;
 gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; }
.brand-mark {
 width: 42px; height: 42px; border-radius: 13px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 20px;
 box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-links a {
 padding: 8px 10px;
 border-radius: 999px;
 color: var(--blue-deep);
 font-size: 14px;
 font-weight: 600;
 white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 210px; }
.nav-search i {
 position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
 color: var(--muted); font-size: 13px;
}
.nav-search input {
 width: 100%;
 min-height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 0 14px 0 36px;
 color: var(--ink);
}
.nav-cta { white-space: nowrap; }
.menu-toggle {
 display: none;
 margin-left: auto;
 width: 44px; height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--blue-deep);
 align-items: center;
 justify-content: center;
}
.drawer { display: none; }
.drawer a {
 display: block;
 padding: 12px 4px;
 font-weight: 700;
 color: var(--blue-deep);
 border-bottom: 1px solid var(--line);
}
.drawer a.active { color: var(--blue); }
.drawer .btn { width: 100%; margin-top: 14px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 46px; padding: 0 18px;
 border-radius: 999px; border: 1px solid transparent;
 font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
 outline: 3px solid rgba(31,111,235,.28);
 outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; color: #fff; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: #fff; }
.hero {
 position: relative;
 padding: 54px 0 36px;
 background:
 linear-gradient(100deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.9) 46%, rgba(244,248,252,.72) 100%),
 url("/assets/images/a7641a47e839d52b.webp") center/cover no-repeat;
}
.hero-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 36px; align-items: center; }
.hero h1 { font-size: 52px; line-height: 1.12; letter-spacing: -1px; color: var(--blue-ink); }
.hero-lead { margin-top: 18px; color: var(--muted); font-size: 17px; max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.kpi-row { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 28px; max-width: 520px; }
.hero-visual { position: relative; min-height: 520px; }
.hero-visual img {
 width: 86%;
 height: 500px;
 object-fit: cover;
 margin-left: auto;
 border-radius: 32px;
 box-shadow: 0 30px 60px rgba(16,36,63,.18);
 transform: rotate(-3.5deg) translate(18px, 10px);
}
.hero-visual::before {
 content: "";
 position: absolute;
 width: 78%;
 height: 430px;
 right: 8px;
 bottom: 18px;
 border: 1px solid rgba(31,111,235,.28);
 border-radius: 32px;
 transform: rotate(4deg);
}
.hero-chip {
 position: absolute;
 left: 0; bottom: 46px;
 background: #fff;
 border-radius: 18px;
 box-shadow: var(--shadow);
 padding: 14px 16px;
 display: flex; gap: 10px; align-items: center;
 width: 230px;
}
.hero-chip i { color: var(--ok); font-size: 20px; }
.hero-chip b { display: block; font-size: 14px; }
.hero-chip span { color: var(--muted); font-size: 12px; }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); }
.lead { margin-top: 12px; color: var(--muted); }
.time-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.highlight-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; }
.photo-card, .panel, .ticket, .quote, .topic, .scene, .form-card, .log-list, .roadmap {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow-sm);
}
.photo-card { overflow: hidden; }
.photo-card img { width: 100%; height: 430px; object-fit: cover; }
.photo-card div { padding: 22px; }
.ladder-row {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
}
.ladder-row strong.mark {
 width: 92px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft);
 color: var(--blue-deep);
 font-size: 18px;
}
.ladder-row p, .muted { color: var(--muted); }
.ladder-row b { display: block; color: var(--blue-ink); }
.page-hero {
 position: relative;
 padding: 28px 0 24px;
 background:
  linear-gradient(90deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.92) 48%, rgba(244,248,252,.78) 100%),
  url("/assets/images/2c9012ce0eb74f84.jpg") center/cover no-repeat;
 border-bottom: 1px solid var(--line);
}
.page-hero-grid {
 display: grid;
 grid-template-columns: 1.4fr .7fr;
 gap: 28px;
 align-items: center;
}
.page-hero h1 {
 margin-top: 8px;
 font-size: 40px;
 line-height: 1.16;
 letter-spacing: -.7px;
 color: var(--blue-ink);
 max-width: 720px;
}
.page-hero .lead { max-width: 640px; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.mini-kpis { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.page-hero-photo {
 height: 196px;
 border-radius: 20px;
 overflow: hidden;
 border: 1px solid rgba(255,255,255,.8);
 box-shadow: var(--shadow);
}
.page-hero-photo img { width: 100%; height: 196px; object-fit: cover; }
.stack-gap { display: grid; gap: 12px; }
.badge {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 min-height: 28px;
 padding: 0 10px;
 border-radius: 999px;
 background: var(--blue-soft);
 color: var(--blue-deep);
 font-size: 12px;
 font-weight: 700;
 white-space: nowrap;
}
.badge-ok { background: #e7f6ef; color: var(--ok); }
.badge-warn { background: #fff4e6; color: var(--warn); }
.badge-gold { background: #f8f1e6; color: var(--gold); }
.step-rail { display: grid; gap: 14px; }
.step-item { display: grid; grid-template-columns: 64px 1fr; gap: 14px; align-items: start; }
.step-index {
 width: 52px; height: 52px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-weight: 800;
 box-shadow: var(--shadow-sm);
}
.step-body { padding: 16px 18px; }
.step-body h3 { font-size: 18px; color: var(--blue-ink); }
.step-body p { margin-top: 6px; color: var(--muted); }
.cover-frame {
 border-radius: 24px;
 overflow: hidden;
 border: 1px solid var(--line);
 box-shadow: var(--shadow);
 background: #fff;
 height: 100%;
}
.cover-frame img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; }
.check-list i { color: var(--ok); margin-top: 4px; }
.rich p + p { margin-top: 10px; }
.split-title {
 display: grid;
 grid-template-columns: 1.1fr .9fr;
 gap: 24px;
 align-items: end;
 margin-bottom: 8px;
}
.case-list { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 6px 22px; }
.case-row {
 display: grid;
 grid-template-columns: 210px 1fr auto;
 gap: 18px;
 align-items: center;
 padding: 18px 0;
 border-bottom: 1px solid var(--line);
}
.case-row:last-child { border-bottom: 0; }
.case-row h3 { font-size: 18px; color: var(--blue-ink); }
.case-row p { color: var(--muted); }
.section-deep { background: var(--blue-deep); color: #fff; }
.section-deep h2 { color: #fff; }
.section-deep .lead, .section-deep p { color: #d5e2f2; }
.outcome-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; }
.outcome-list { display: grid; gap: 12px; margin-top: 18px; }
.outcome-list article {
 display: grid;
 grid-template-columns: 46px 1fr;
 gap: 12px;
 align-items: start;
 padding: 14px;
 border-radius: 16px;
 background: rgba(255,255,255,.06);
 border: 1px solid rgba(255,255,255,.1);
}
.outcome-list i {
 width: 46px; height: 46px; border-radius: 14px;
 display: grid; place-items: center;
 background: rgba(255,255,255,.12); color: #fff;
}
.outcome-list b { display: block; color: #fff; }
.deep-photo { border-radius: 24px; overflow: hidden; min-height: 320px; box-shadow: 0 20px 40px rgba(0,0,0,.18); }
.deep-photo img { width: 100%; height: 360px; object-fit: cover; }
.log-list { padding: 8px 18px; }
.version-item {
 display: grid;
 grid-template-columns: 128px 1fr;
 gap: 16px;
 align-items: center;
 padding: 16px 4px;
 border-bottom: 1px solid var(--line);
 border-radius: 12px;
}
.version-item:last-child { border-bottom: 0; }
.version-item img { width: 128px; height: 86px; object-fit: cover; border-radius: 12px; }
.version-item h3 { font-size: 18px; color: var(--blue-ink); }
.version-item p { color: var(--muted); margin-top: 4px; }
.version-item:hover { background: var(--blue-mist); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.metric {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 20px;
 box-shadow: var(--shadow-sm);
}
.metric strong { display: block; font-size: 32px; letter-spacing: -.6px; color: var(--blue-ink); line-height: 1.1; }
.metric span { display: block; margin-top: 8px; color: var(--muted); }
.panel { padding: 24px; height: 100%; }
.panel h2 { font-size: 32px; }
.ticket { padding: 16px 18px; margin-top: 16px; }
.ticket b { display: block; }
.form-card { padding: 22px; }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field span { font-weight: 700; font-size: 14px; color: var(--blue-ink); }
.field input, .field select, .field textarea {
 width: 100%;
 min-height: 48px;
 border-radius: 14px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 12px 14px;
 color: var(--ink);
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: #b7cbe4; }
.form-note { margin-top: 10px; color: var(--muted); font-size: 14px; }
.search-empty { display: none; margin: 0 auto 10px; color: var(--warn); font-weight: 700; }
.search-empty.show { display: block; }
.ladder-row, .step-body, .form-card, .panel, .metric, .photo-card {
 transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.ladder-row:hover, .step-body:hover, .form-card:hover, .panel:hover, .metric:hover {
 transform: translateY(-2px);
 box-shadow: var(--shadow);
 border-color: #c9d8ea;
}
.site-footer { background: var(--blue-ink); color: #d7e2f0; padding: 48px 0 18px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; gap: 12px; align-items: center; }
.footer-brand h2 { font-size: 18px; color: #fff; }
.site-footer p { margin-top: 8px; color: #c5d2e4; }
.site-footer a:hover { color: #fff; }
.fine {
 display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
 border-top: 1px solid rgba(255,255,255,.12);
 margin-top: 28px; padding: 16px 0 8px;
 color: #9fb0c7; font-size: 13px;
}
@media (max-width: 1200px) {
 .nav-links, .nav-search { display: none; }
 .menu-toggle { display: inline-flex; }
 .brand { min-width: 0; }
}
@media (max-width: 1024px) {
 .page-hero-grid, .split-title, .outcome-grid, .highlight-grid, .footer-grid { grid-template-columns: 1fr; }
 .metric-grid, .time-grid { grid-template-columns: 1fr 1fr; }
 .cover-frame img, .deep-photo img { min-height: 240px; height: 280px; }
 .page-hero h1, .section-head h2, .split-copy h2, .band-copy h2, .panel h2 { font-size: 32px; }
}
@media (max-width: 768px) {
 .section { padding: 56px 0; }
 .page-hero { padding: 22px 0; }
 .page-hero h1 { font-size: 32px; }
 .page-hero-photo, .page-hero-photo img { height: 180px; }
 .case-row, .version-item, .step-item, .ladder-row { grid-template-columns: 1fr; }
 .ladder-row strong.mark { width: 72px; height: 48px; }
 .case-row .badge, .ladder-row .badge { justify-self: start; }
}
@media (max-width: 520px) {
 .container { width: calc(100% - 28px); }
 .header-row { gap: 8px; }
 .brand-text small { display: none; }
 .nav-cta { display: none; }
 .hero-actions .btn, .form-card .btn { width: 100%; }
 .metric-grid, .time-grid { grid-template-columns: 1fr; }
 .page-hero h1 { font-size: 28px; }
 .fine { flex-direction: column; }
}

/* roulang page: category4 */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: phien-ban */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--white);
 line-height: 1.7;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
 backdrop-filter: blur(12px);
}
.header-row {
 min-height: var(--header);
 display: flex;
 align-items: center;
 gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; }
.brand-mark {
 width: 42px; height: 42px; border-radius: 13px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 20px;
 box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-links a {
 padding: 8px 10px;
 border-radius: 999px;
 color: var(--blue-deep);
 font-size: 14px;
 font-weight: 600;
 white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 210px; }
.nav-search i {
 position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
 color: var(--muted); font-size: 13px;
}
.nav-search input {
 width: 100%;
 min-height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 0 14px 0 36px;
 color: var(--ink);
}
.nav-cta { white-space: nowrap; }
.menu-toggle {
 display: none;
 margin-left: auto;
 width: 44px; height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--blue-deep);
}
.drawer { display: none; border-top: 1px solid var(--line); background: #fff; padding: 8px 20px 16px; }
.drawer .nav-links { flex-direction: column; align-items: stretch; gap: 6px; }
.drawer .nav-links a { padding: 12px 14px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 46px; padding: 0 18px;
 border-radius: 999px; border: 1px solid transparent;
 font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
 outline: 3px solid rgba(31,111,235,.28);
 outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); }
.lead { margin-top: 12px; color: var(--muted); }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.badge {
 display: inline-flex; align-items: center; gap: 6px;
 padding: 5px 10px; border-radius: 999px;
 background: var(--blue-soft); color: var(--blue-deep);
 font-size: 12px; font-weight: 700;
}
.badge-ok { background: #e7f7f0; color: var(--ok); }
.badge-gold { background: #f8f1e6; color: var(--gold); }
.badge-warn { background: #fff4e8; color: var(--warn); }
.photo-card, .panel, .ticket, .quote, .topic, .scene, .form-card, .log-list, .roadmap {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow-sm);
}
.photo-card { overflow: hidden; }
.photo-card img { width: 100%; height: 430px; object-fit: cover; }
.photo-card div { padding: 22px; }
.ladder-row {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
}
.ladder-row + .ladder-row { margin-top: 12px; }
.ladder-row strong.mark {
 width: 92px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue-deep);
 font-size: 14px;
}
.ladder-row h3 { font-size: 18px; color: var(--blue-ink); }
.ladder-row p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.version-hero {
 position: relative;
 padding: 58px 0 42px;
 background:
  linear-gradient(105deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.9) 48%, rgba(244,248,252,.74) 100%),
  url("/assets/images/2c9012ce0eb74f84.jpg") center/cover no-repeat;
}
.version-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.version-hero h1 { font-size: 48px; line-height: 1.14; letter-spacing: -.8px; color: var(--blue-ink); margin-top: 10px; }
.version-hero .lead { font-size: 17px; max-width: 560px; }
.point-row { display: grid; gap: 10px; margin-top: 22px; }
.point-row li {
 list-style: none;
 display: grid;
 grid-template-columns: 42px 1fr;
 gap: 12px;
 align-items: center;
 background: rgba(255,255,255,.86);
 border: 1px solid var(--line);
 border-radius: 16px;
 padding: 12px 14px;
}
.point-row { margin-left: 0; padding: 0; }
.point-ico {
 width: 42px; height: 42px; border-radius: 12px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff;
}
.point-row b { display: block; color: var(--blue-ink); }
.point-row span { color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.slot-board { padding: 22px; }
.slot-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.slot-head h2 { font-size: 22px; color: var(--blue-ink); letter-spacing: -.3px; }
.slot-head p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.slot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.slot {
 text-align: left;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 border-radius: 16px;
 padding: 12px 12px 12px 14px;
 color: var(--blue-ink);
 transition: border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.slot b { display: block; font-size: 16px; }
.slot span { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }
.slot em { font-style: normal; font-size: 12px; font-weight: 700; color: var(--ok); }
.slot:hover { transform: translateY(-2px); border-color: #b9d0ee; box-shadow: var(--shadow-sm); }
.slot.is-on { background: #fff; border-color: var(--blue); box-shadow: 0 10px 24px rgba(31,111,235,.12); }
.slot.is-full { background: #f7f8fa; color: #8b97a8; }
.slot.is-full em { color: var(--warn); }
.slot-note { margin-top: 14px; color: var(--muted); font-size: 13px; }
.stat-strip {
 display: grid;
 grid-template-columns: 1.3fr repeat(3, 1fr);
 border: 1px solid var(--line);
 border-radius: 24px;
 overflow: hidden;
 background: #fff;
 box-shadow: var(--shadow);
}
.stat-lead { padding: 28px; background: linear-gradient(180deg, #fff, var(--blue-mist)); }
.stat-lead h2 { font-size: 30px; color: var(--blue-ink); letter-spacing: -.4px; }
.stat-cell { padding: 24px 18px; border-left: 1px solid var(--line); }
.stat-cell strong { display: block; font-size: 32px; color: var(--blue); letter-spacing: -.6px; line-height: 1.1; }
.stat-cell span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
.note-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: stretch; }
.note-photo { position: relative; overflow: hidden; min-height: 100%; }
.note-photo img { width: 100%; height: 100%; min-height: 460px; object-fit: cover; }
.note-photo figcaption {
 position: absolute; left: 16px; right: 16px; bottom: 16px;
 background: rgba(16,36,63,.82); color: #fff;
 border-radius: 16px; padding: 14px 16px;
}
.note-photo strong { display: block; }
.note-photo span { display: block; color: #d5e2f2; font-size: 13px; margin-top: 4px; }
.log-list { padding: 8px; }
.log-item {
 display: grid;
 grid-template-columns: 86px 1fr;
 gap: 14px;
 padding: 16px;
 border-bottom: 1px solid var(--line);
}
.log-item:last-child { border-bottom: 0; }
.log-item b { color: var(--blue); font-size: 14px; }
.log-item h3 { font-size: 18px; color: var(--blue-ink); }
.log-item p { color: var(--muted); font-size: 14.5px; margin-top: 4px; }
.compare-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.compare-card { padding: 24px; }
.compare-card.head-now { background: var(--blue-ink); color: #fff; border-color: transparent; }
.compare-card.head-now p, .compare-card.head-now li { color: #d5e2f2; }
.compare-card h2, .compare-card h3 { font-size: 26px; letter-spacing: -.3px; }
.compare-card ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.compare-card li { display: flex; gap: 10px; align-items: flex-start; }
.compare-card i { margin-top: 4px; color: var(--blue); }
.compare-card.head-now i { color: #8eb6ff; }
.device-board { display: grid; grid-template-columns: 280px 1fr; gap: 22px; align-items: center; }
.device-photo { border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.device-photo img { width: 100%; height: 360px; object-fit: cover; }
.device-line { display: grid; gap: 10px; }
.device-row {
 display: grid;
 grid-template-columns: 54px 1fr auto;
 gap: 14px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 18px;
 padding: 14px 16px;
 box-shadow: var(--shadow-sm);
}
.device-row i {
 width: 54px; height: 54px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue-deep); font-size: 20px;
}
.device-row h3 { font-size: 16px; }
.device-row p { color: var(--muted); font-size: 14px; }
.week-wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
.week-table { padding: 8px 8px 12px; }
.week-row {
 display: grid;
 grid-template-columns: 120px 1fr 120px;
 gap: 10px;
 align-items: center;
 padding: 14px 12px;
 border-bottom: 1px solid var(--line);
}
.week-row:last-child { border-bottom: 0; }
.week-row strong { color: var(--blue-ink); }
.week-row span { color: var(--muted); font-size: 14px; }
.metric-panel {
 background: var(--blue-ink);
 color: #fff;
 border-radius: var(--radius);
 padding: 26px;
 box-shadow: var(--shadow);
}
.metric-panel h2 { font-size: 28px; letter-spacing: -.3px; }
.metric-panel .lead { color: #c9d7ea; }
.metric-list { display: grid; gap: 12px; margin-top: 18px; }
.metric-list div {
 display: flex; justify-content: space-between; gap: 12px;
 padding-bottom: 10px;
 border-bottom: 1px solid rgba(255,255,255,.12);
}
.metric-list b { font-size: 20px; }
.quote { margin-top: 16px; padding: 16px; background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); color: #e7eef8; }
.quote p { font-size: 15px; }
.quote b { display: block; margin-top: 8px; color: #fff; }
.reserve-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 24px; align-items: start; }
.reserve-copy h2 { font-size: 36px; line-height: 1.2; letter-spacing: -.5px; color: var(--blue-ink); }
.reserve-points { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.reserve-points li { display: flex; gap: 10px; color: var(--muted); }
.reserve-points i { color: var(--ok); margin-top: 4px; }
.form-card { padding: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field span { font-weight: 700; font-size: 14px; color: var(--blue-ink); }
.field input, .field select, .field textarea {
 width: 100%;
 border: 1px solid var(--line);
 border-radius: 14px;
 background: var(--blue-mist);
 color: var(--ink);
 padding: 12px 14px;
 min-height: 48px;
 transition: border-color .2s ease, background .2s ease;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: #b7cbe4; }
.field input:focus, .field select:focus, .field textarea:focus { background: #fff; border-color: var(--blue); }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 16px; }
.form-actions small { color: var(--muted); }
.form-success {
 display: none;
 margin-top: 14px;
 padding: 14px 16px;
 border-radius: 16px;
 background: #e7f7f0;
 color: #0c6d4b;
 font-weight: 600;
}
.site-footer { background: var(--blue-ink); color: #d5e2f2; padding: 54px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.footer-brand h2 { color: #fff; font-size: 20px; }
.site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 10px; }
.site-footer p { margin: 0 0 8px; }
.site-footer a { color: #d5e2f2; }
.site-footer a:hover { color: #fff; }
.fine {
 display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
 border-top: 1px solid rgba(255,255,255,.12);
 margin-top: 28px; padding: 16px 0 22px;
 color: #9eb0c8; font-size: 13px;
}
@media (max-width: 1100px) {
 .nav-links, .nav-search { display: none; }
 .menu-toggle { display: inline-grid; place-items: center; }
 .drawer.open { display: block; }
 .version-hero h1 { font-size: 40px; }
 .stat-strip, .note-layout, .compare-split, .device-board, .week-wrap, .reserve-grid, .version-grid { grid-template-columns: 1fr; }
 .stat-cell { border-left: 0; border-top: 1px solid var(--line); }
 .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
 .section { padding: 58px 0; }
 .container { width: min(var(--container), calc(100% - 28px)); }
 .version-hero { padding: 36px 0 28px; }
 .version-hero h1, .reserve-copy h2, .section-head h2 { font-size: 32px; }
 .header-row { gap: 10px; }
 .brand { min-width: 0; }
 .nav-cta { display: none; }
 .slot-grid, .form-grid, .footer-grid { grid-template-columns: 1fr; }
 .ladder-row, .log-item, .device-row, .week-row { grid-template-columns: 1fr; }
 .ladder-row strong.mark { width: 72px; height: 48px; }
 .note-photo img, .device-photo img, .photo-card img { height: 240px; min-height: 240px; }
 .stat-lead, .stat-cell, .compare-card { padding: 18px; }
}
@media (max-width: 520px) {
 .version-hero h1 { font-size: 30px; }
 .hero-actions .btn, .form-actions .btn { width: 100%; }
 .fine { flex-direction: column; }
 .brand-text strong { font-size: 16px; }
 .slot-head { flex-direction: column; }
}

/* roulang page: category3 */
:root {
  --blue: #1f6feb;
  --blue-deep: #16325c;
  --blue-ink: #10243f;
  --blue-soft: #e7f1fc;
  --blue-mist: #f4f8fc;
  --ink: #17233b;
  --muted: #5c6b82;
  --line: #e1e8f2;
  --white: #ffffff;
  --gold: #9a7340;
  --ok: #0e8f62;
  --warn: #b86e12;
  --danger: #b42318;
  --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
  --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
  --header: 78px;
  --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: category3 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
p, h1, h2, h3 { margin: 0; }
ul, ol { margin: 0; padding: 0; }
[hidden] { display: none !important; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
  backdrop-filter: blur(12px);
}
.header-row {
  min-height: var(--header);
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center; flex: 0 0 auto;
  background: var(--blue-deep); color: #fff; font-size: 20px;
  box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; color: var(--blue-ink); }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-links a {
  padding: 7px 8px;
  border-radius: 999px;
  color: var(--blue-deep);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 150px; flex: 0 0 auto; }
.nav-search i {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 13px;
}
.nav-search input {
  width: 100%;
  min-height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--blue-mist);
  padding: 0 14px 0 36px;
  color: var(--ink);
}
.nav-search input:focus { background: #fff; border-color: #b9cff0; }
.nav-cta { white-space: nowrap; min-height: 42px; padding: 0 14px; font-size: 14px; }
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue-deep);
}
.menu-toggle:hover { border-color: var(--blue); color: var(--blue); }
.drawer { display: none; border-top: 1px solid var(--line); background: #fff; }
.drawer a {
  display: block;
  padding: 13px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--blue-deep);
  font-weight: 700;
}
.drawer a:hover, .drawer a:focus-visible { background: var(--blue-soft); }
.drawer a.active { background: var(--blue-deep); color: #fff; }
.drawer-tools { padding: 14px 20px 18px; display: grid; gap: 10px; }
.drawer-tools .nav-search { width: 100%; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 18px;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(31,111,235,.28);
  outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-block { width: 100%; }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 28px; padding: 0 10px; border-radius: 999px;
  background: var(--blue-soft); color: var(--blue-deep);
  font-size: 12px; font-weight: 700; white-space: nowrap;
}
.badge-gold { background: #f8f1e6; color: var(--gold); }
.badge-ok { background: #e7f6ef; color: var(--ok); }
.badge-warn { background: #fff4e8; color: var(--warn); }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 {
  font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); margin-top: 8px;
}
.lead { margin-top: 12px; color: var(--muted); }
.secure-hero {
  position: relative;
  padding: 48px 0 56px;
  background:
    linear-gradient(105deg, rgba(255,255,255,.96) 0%, rgba(244,248,252,.93) 48%, rgba(244,248,252,.8) 100%),
    url("/assets/images/50928656d38f181d.webp") center/cover no-repeat;
}
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.crumb a { color: var(--blue-deep); }
.crumb a:hover { color: var(--blue); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 34px; align-items: center; }
.secure-hero h1 { font-size: 48px; line-height: 1.14; letter-spacing: -1px; color: var(--blue-ink); margin-top: 8px; }
.hero-lead { margin-top: 16px; color: var(--muted); font-size: 17px; max-width: 560px; }
.point-list { list-style: none; display: grid; gap: 10px; margin-top: 22px; }
.point-list li {
  display: flex; gap: 12px; align-items: center;
  background: rgba(255,255,255,.88);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}
.point-list i {
  width: 36px; height: 36px; border-radius: 12px;
  display: grid; place-items: center; flex: 0 0 auto;
  background: var(--blue-soft); color: var(--blue);
}
.booking-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.booking-card img { width: 100%; height: 168px; object-fit: cover; }
.booking-body { padding: 20px 20px 22px; }
.booking-body h2 { font-size: 26px; color: var(--blue-ink); letter-spacing: -.3px; margin: 10px 0 6px; }
.booking-body .sub { color: var(--muted); font-size: 14px; }
.slot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 16px 0; }
.slot {
  min-height: 58px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--blue-mist);
  color: var(--blue-deep);
  font-weight: 800;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.slot small { display: block; font-size: 11px; font-weight: 600; color: var(--muted); }
.slot:hover { transform: translateY(-2px); border-color: #b9cff0; }
.slot.active, .slot[aria-pressed="true"] { background: var(--blue-deep); color: #fff; border-color: var(--blue-deep); }
.slot.active small, .slot[aria-pressed="true"] small { color: #d5e4f8; }
.field { display: grid; gap: 6px; margin-bottom: 12px; }
.field span { font-size: 13px; font-weight: 700; color: var(--blue-deep); }
.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  min-height: 46px;
  padding: 10px 12px;
  background: #fff;
}
.field textarea { min-height: 84px; resize: vertical; }
.field input:hover, .field textarea:hover, .nav-search input:hover { border-color: #b7cbeb; }
.form-note { min-height: 22px; margin: 8px 0 12px; color: var(--blue-deep); font-size: 13px; font-weight: 600; }
.mail-line { margin-top: 10px; color: var(--muted); font-size: 13px; }
.search-empty {
  margin: 18px auto 0;
  background: #fff;
  border: 1px dashed #b9cff0;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--blue-deep);
  font-weight: 600;
}
.signal-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 36px; align-items: start; }
.signal-layout h2 { font-size: 36px; line-height: 1.2; letter-spacing: -.5px; color: var(--blue-ink); margin-top: 8px; }
.risk-list { display: grid; gap: 12px; }
.risk-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.risk-row:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.risk-row i { font-size: 22px; color: var(--warn); }
.risk-row h3 { font-size: 17px; color: var(--blue-ink); }
.risk-row p { color: var(--muted); font-size: 14px; }
.layer-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: stretch; }
.media-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #d7e4f4;
  min-height: 100%;
}
.media-frame img { width: 100%; height: 100%; min-height: 460px; object-fit: cover; }
.layer-stack { display: grid; gap: 12px; }
.layer-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  box-shadow: var(--shadow-sm);
}
.layer-item:hover { border-color: #c5d8f1; }
.layer-item b {
  width: 72px; height: 64px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--blue-deep); color: #fff; font-size: 18px;
}
.layer-item h3 { font-size: 17px; color: var(--blue-ink); }
.layer-item p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.flow-wrap { display: grid; grid-template-columns: .7fr 1.3fr; gap: 32px; }
.timeline { list-style: none; display: grid; gap: 0; }
.timeline li { display: grid; grid-template-columns: 86px 1fr; gap: 8px; }
.timeline li > span {
  width: 74px; height: 74px; border-radius: 20px;
  display: grid; place-items: center;
  background: #fff; color: var(--blue);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-weight: 800; font-size: 20px;
}
.step-body { border-left: 2px solid #d5e3f3; margin-left: 8px; padding: 2px 0 26px 22px; }
.timeline li:last-child .step-body { border-left-color: transparent; padding-bottom: 0; }
.step-body h3 { font-size: 20px; color: var(--blue-ink); }
.step-body p { color: var(--muted); margin-top: 4px; }
.metric-band { background: var(--blue-deep); color: #fff; padding: 46px 0; }
.metric-band h2 { font-size: 28px; letter-spacing: -.3px; max-width: 640px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 22px; }
.metric-grid article {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 16px 16px 18px;
}
.metric-grid strong { display: block; font-size: 40px; letter-spacing: -1px; line-height: 1.1; }
.metric-grid span { display: block; margin-top: 6px; color: #d5e2f2; font-size: 14px; }
.case-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 18px; }
.case-card, .side-card, .scope-copy {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.case-card { padding: 28px; position: relative; }
.case-card::before {
  content: "\201C";
  position: absolute; right: 24px; top: 6px;
  font-size: 78px; line-height: 1; color: #d7e6f8; font-weight: 800;
}
.case-card h3, .side-card h3 { font-size: 22px; color: var(--blue-ink); position: relative; }
.case-card p, .side-card p { color: var(--muted); margin-top: 10px; position: relative; }
.case-side { display: grid; gap: 18px; }
.side-card { padding: 20px; }
.side-card:hover, .case-card:hover { box-shadow: var(--shadow); }
.news-list { display: grid; gap: 12px; }
.news-row {
  display: grid;
  grid-template-columns: 168px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 10px;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease, transform .2s ease;
}
.news-row:hover { border-color: #c5d8f1; transform: translateY(-2px); }
.news-row img { width: 168px; height: 104px; object-fit: cover; border-radius: 14px; }
.news-row h3 { font-size: 18px; color: var(--blue-ink); }
.news-row p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.scope-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 26px; align-items: center; }
.scope-copy { padding: 8px 8px 8px 0; background: transparent; border: 0; box-shadow: none; }
.check-list { list-style: none; display: grid; gap: 10px; margin-top: 18px; }
.check-list li {
  display: flex; gap: 10px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 12px 14px; box-shadow: var(--shadow-sm); font-weight: 600;
}
.check-list i { color: var(--ok); margin-top: 3px; }
.scope-photo { border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.scope-photo img { width: 100%; height: 420px; object-fit: cover; }
.site-footer { background: var(--blue-ink); color: #d5e2f2; padding: 48px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand h2 { font-size: 20px; color: #fff; }
.site-footer .brand-mark { background: var(--blue); }
.site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 10px; }
.site-footer p { margin: 0 0 8px; color: #d5e2f2; }
.site-footer a { color: #fff; font-weight: 600; }
.site-footer a:hover { color: #b9d4ff; }
.fine {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 28px; padding: 16px 0 8px; color: #b7c6da; font-size: 14px;
}
@media (max-width: 1100px) {
  .nav-links, .header-row .nav-search, .header-row .nav-cta { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .drawer.open { display: block; }
}
@media (min-width: 1101px) {
  .drawer { display: none !important; }
}
@media (max-width: 1024px) {
  .hero-grid, .signal-layout, .layer-grid, .flow-wrap, .case-grid, .scope-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .secure-hero h1 { font-size: 40px; }
  .media-frame img, .scope-photo img { min-height: 280px; height: 320px; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-head h2, .signal-layout h2, .split-copy h2 { font-size: 30px; }
  .news-row { grid-template-columns: 96px 1fr; }
  .news-row img { width: 96px; height: 96px; }
  .news-row .badge { grid-column: 2; justify-self: start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .secure-hero { padding: 32px 0 40px; }
  .secure-hero h1 { font-size: 32px; }
  .slot-grid, .metric-grid, .footer-grid { grid-template-columns: 1fr; }
  .timeline li, .layer-item, .risk-row { grid-template-columns: 1fr; }
  .timeline li > span, .layer-item b { width: 64px; height: 56px; }
  .step-body { margin-left: 0; border-left: 0; padding-left: 0; }
  .news-row { grid-template-columns: 1fr; }
  .news-row img { width: 100%; height: 160px; }
  .hero-actions .btn, .booking-body .btn { width: 100%; }
  .fine { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover, .risk-row:hover, .news-row:hover, .slot:hover { transform: none; }
}

/* roulang page: category5 */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: category5 */
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--white);
 line-height: 1.7;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
 backdrop-filter: blur(12px);
}
.header-row {
 min-height: var(--header);
 display: flex;
 align-items: center;
 gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; }
.brand-mark {
 width: 42px; height: 42px; border-radius: 13px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 20px;
 box-shadow: var(--shadow-sm);
 flex: 0 0 auto;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; color: var(--blue-ink); }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; }
.nav-links a {
 padding: 8px 10px;
 border-radius: 999px;
 color: var(--blue-deep);
 font-size: 14px;
 font-weight: 600;
 white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 180px; flex: 0 0 auto; }
.nav-search i {
 position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
 color: var(--muted); font-size: 13px;
}
.nav-search input {
 width: 100%;
 min-height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 0 14px 0 36px;
 color: var(--ink);
}
.nav-search input:focus { border-color: var(--blue); background: #fff; }
.nav-cta { white-space: nowrap; flex: 0 0 auto; }
.menu-toggle {
 display: none;
 margin-left: auto;
 width: 44px; height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--blue-deep);
 place-items: center;
}
.menu-toggle:hover { background: var(--blue-soft); }
.drawer { display: none; }
.drawer a {
 display: block;
 padding: 11px 12px;
 border-radius: 12px;
 font-weight: 600;
 color: var(--blue-deep);
}
.drawer a:hover, .drawer a:focus-visible { background: var(--blue-soft); }
.drawer a.active { background: var(--blue-deep); color: #fff; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 46px; padding: 0 18px;
 border-radius: 999px; border: 1px solid transparent;
 font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
 outline: 3px solid rgba(31,111,235,.28);
 outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-wide { width: 100%; }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 680px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); margin: 0; }
.lead { margin-top: 12px; color: var(--muted); }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; margin: 0 0 8px; }
.badge {
 display: inline-flex; align-items: center; gap: 6px;
 min-height: 28px; padding: 0 10px;
 border-radius: 999px;
 background: var(--blue-soft);
 color: var(--blue-deep);
 font-size: 12px; font-weight: 700;
}
.badge-ok { background: #e7f7f0; color: var(--ok); }
.badge-warn { background: #fff4e5; color: var(--warn); }
.badge-gold { background: #f8f1e6; color: var(--gold); }
.offer-hero { padding: 42px 0 28px; background: linear-gradient(180deg, #f7fbff 0%, #ffffff 100%); }
.offer-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: center; }
.offer-hero h1 { margin: 0; font-size: 46px; line-height: 1.14; letter-spacing: -.8px; color: var(--blue-ink); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.icon-matrix { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.icon-cell {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow-sm);
 padding: 18px 16px 16px;
 min-height: 148px;
 transition: transform .2s ease, box-shadow .2s ease;
}
.icon-cell:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.icon-cell i {
 width: 42px; height: 42px; border-radius: 14px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue); font-size: 18px;
 margin-bottom: 12px;
}
.icon-cell strong { display: block; color: var(--blue-ink); font-size: 16px; }
.icon-cell span { display: block; color: var(--muted); font-size: 13px; margin-top: 4px; }
.status-bar {
 margin-top: 26px;
 display: grid;
 grid-template-columns: 1.3fr repeat(3, 1fr);
 gap: 10px;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 18px;
 box-shadow: var(--shadow-sm);
 padding: 12px;
}
.status-bar div { padding: 8px 12px; border-radius: 12px; }
.status-bar div:first-child { background: var(--blue-deep); color: #fff; }
.status-bar b { display: block; font-size: 14px; line-height: 1.4; }
.status-bar span { display: block; font-size: 12px; color: var(--muted); }
.status-bar div:first-child span { color: rgba(255,255,255,.75); }
.benefit-layout { display: grid; grid-template-columns: 1.35fr .75fr; gap: 22px; align-items: stretch; }
.photo-card, .panel, .ticket, .quote, .topic, .scene, .form-card, .log-list, .roadmap {
 background: #fff;
 border: 1px solid var(--line);
 border-radius: var(--radius);
 box-shadow: var(--shadow-sm);
}
.photo-card { overflow: hidden; }
.photo-card img { width: 100%; height: 280px; object-fit: cover; }
.photo-card div, .panel { padding: 22px; }
.photo-card h3, .panel h3, .ticket h3 { margin: 10px 0 8px; font-size: 24px; line-height: 1.3; color: var(--blue-ink); }
.muted { color: var(--muted); }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.offer-stack { display: grid; gap: 14px; }
.ticket { padding: 16px; display: grid; grid-template-columns: 72px 1fr; gap: 12px; align-items: center; transition: border-color .2s ease, transform .2s ease; }
.ticket:hover { border-color: #b9d0ee; transform: translateY(-2px); }
.ticket .code {
 width: 72px; height: 72px; border-radius: 16px;
 display: grid; place-items: center; text-align: center;
 background: var(--blue-mist); color: var(--blue-deep); font-weight: 800; font-size: 13px; line-height: 1.2;
}
.ticket p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.ladder { display: grid; gap: 12px; }
.ladder-row {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
}
.ladder-row strong.mark {
 width: 92px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 18px;
}
.ladder-row h3 { margin: 0; font-size: 18px; color: var(--blue-ink); }
.ladder-row p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.rule-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.rule-visual { position: relative; }
.rule-visual img { width: 100%; height: 420px; object-fit: cover; border-radius: 28px; box-shadow: var(--shadow); }
.rule-float {
 position: absolute; left: 18px; bottom: 18px; right: 18px;
 background: rgba(255,255,255,.94);
 border-radius: 16px;
 padding: 14px 16px;
 box-shadow: var(--shadow-sm);
}
.rule-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.rule-list li {
 display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: start;
 background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 14px;
 box-shadow: var(--shadow-sm);
}
.rule-list i { color: var(--ok); margin-top: 3px; }
.rule-list strong { display: block; color: var(--blue-ink); }
.rule-list span { color: var(--muted); font-size: 14px; }
.timeline { display: grid; grid-template-columns: 280px 1fr; gap: 28px; }
.time-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 0; }
.time-list li {
 display: grid; grid-template-columns: 110px 18px 1fr; gap: 14px;
 padding-bottom: 22px;
}
.time-list time { font-weight: 800; color: var(--blue-deep); }
.time-list .dot {
 width: 14px; height: 14px; border-radius: 50%;
 background: #fff; border: 3px solid var(--blue); margin-top: 6px;
 box-shadow: 0 0 0 6px var(--blue-soft);
 position: relative;
}
.time-list li:not(:last-child) .dot::after {
 content: ""; position: absolute; left: 4px; top: 16px; width: 2px; height: 58px; background: #d5e3f5;
}
.time-list h3 { margin: 0; font-size: 18px; color: var(--blue-ink); }
.time-list p { margin: 4px 0 0; color: var(--muted); }
.metric-band {
 display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; align-items: center;
 background: var(--blue-ink); color: #fff;
 border-radius: 30px; overflow: hidden;
 box-shadow: var(--shadow);
}
.metric-copy { padding: 36px; }
.metric-copy h2 { margin: 0 0 10px; font-size: 32px; letter-spacing: -.4px; }
.metric-copy p { color: #c5d4e8; margin: 0 0 20px; }
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.metric-grid article { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1); border-radius: 16px; padding: 14px; }
.metric-grid b { display: block; font-size: 28px; letter-spacing: -.5px; }
.metric-grid span { color: #c5d4e8; font-size: 13px; }
.metric-band img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
.news-list { display: grid; gap: 14px; }
.news-item {
 display: grid; grid-template-columns: 168px 1fr auto; gap: 16px; align-items: center;
 background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 10px;
 box-shadow: var(--shadow-sm);
}
.news-item img { width: 168px; height: 112px; object-fit: cover; border-radius: 12px; }
.news-item h3 { margin: 0 0 4px; font-size: 18px; color: var(--blue-ink); }
.news-item p { margin: 0; color: var(--muted); font-size: 14px; }
.cta-wrap {
 display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center;
 background: linear-gradient(135deg, #f4f8fc 0%, #ffffff 55%);
 border: 1px solid var(--line);
 border-radius: 30px;
 padding: 28px;
 box-shadow: var(--shadow-sm);
}
.form-card { padding: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field span { font-size: 13px; font-weight: 700; color: var(--blue-deep); }
.field input, .field select {
 min-height: 46px; border-radius: 12px; border: 1px solid var(--line);
 background: var(--blue-mist); padding: 0 12px; color: var(--ink);
}
.field input:focus, .field select:focus { border-color: var(--blue); background: #fff; }
.form-note {
 margin: 12px 0 0; padding: 12px 14px; border-radius: 12px;
 background: #e7f7f0; color: var(--ok); font-weight: 700;
}
.check-line { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); margin: 8px 0 14px; }
.site-footer { background: var(--blue-ink); color: #d5e2f2; padding: 48px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.footer-brand h2 { margin: 0; font-size: 20px; color: #fff; }
.site-footer h3 { margin: 0 0 10px; color: #fff; font-size: 16px; }
.site-footer p { margin: 0 0 8px; }
.site-footer a { color: #d5e2f2; }
.site-footer a:hover { color: #fff; }
.fine {
 display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
 border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding: 16px 0 0; color: #9eb0c8; font-size: 13px;
}
@media (max-width: 1200px) {
 .nav-links, .nav-search { display: none; }
 .menu-toggle { display: inline-grid; }
 .drawer.open { display: grid; padding: 8px 0 16px; }
 .offer-hero h1 { font-size: 40px; }
}
@media (max-width: 1024px) {
 .offer-hero-grid, .benefit-layout, .rule-grid, .timeline, .metric-band, .cta-wrap, .footer-grid { grid-template-columns: 1fr; }
 .status-bar { grid-template-columns: 1fr 1fr; }
 .metric-band img { min-height: 240px; }
 .section { padding: 62px 0; }
 .section-head h2, .metric-copy h2 { font-size: 30px; }
}
@media (max-width: 768px) {
 .header-row { gap: 10px; }
 .brand { min-width: 0; }
 .offer-hero h1 { font-size: 34px; }
 .status-bar, .form-grid, .metric-grid { grid-template-columns: 1fr; }
 .news-item, .ladder-row, .time-list li { grid-template-columns: 1fr; }
 .news-item img { width: 100%; height: 180px; }
 .time-list .dot { display: none; }
 .photo-card img, .rule-visual img { height: 220px; }
 .cta-wrap, .metric-copy { padding: 18px; }
 .fine { flex-direction: column; }
}
@media (max-width: 520px) {
 .container { width: min(var(--container), calc(100% - 28px)); }
 .brand-text strong { font-size: 14px; }
 .offer-hero { padding-top: 28px; }
 .offer-hero h1 { font-size: 30px; }
 .icon-matrix { grid-template-columns: 1fr; }
 .hero-actions .btn, .nav-cta { width: auto; }
 .ticket { grid-template-columns: 1fr; }
 .section { padding: 48px 0; }
}

/* roulang page: category6 */
:root {
 --blue: #1f6feb;
 --blue-deep: #16325c;
 --blue-ink: #10243f;
 --blue-soft: #e7f1fc;
 --blue-mist: #f4f8fc;
 --ink: #17233b;
 --muted: #5c6b82;
 --line: #e1e8f2;
 --white: #ffffff;
 --gold: #9a7340;
 --ok: #0e8f62;
 --warn: #b86e12;
 --danger: #b42318;
 --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
 --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
 --radius: 22px;
 --radius-sm: 14px;
 --container: 1180px;
 --header: 78px;
 --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: category6 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0;
 font-family: var(--font);
 color: var(--ink);
 background: var(--white);
 line-height: 1.7;
 font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
 position: sticky;
 top: 0;
 z-index: 40;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
 backdrop-filter: blur(12px);
}
.header-row {
 min-height: var(--header);
 display: flex;
 align-items: center;
 gap: 10px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
 width: 42px; height: 42px; border-radius: 13px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-size: 20px;
 box-shadow: var(--shadow-sm);
 flex: 0 0 auto;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; min-width: 0; }
.nav-links a {
 padding: 8px 8px;
 border-radius: 999px;
 color: var(--blue-deep);
 font-size: 13px;
 font-weight: 600;
 white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 148px; flex: 0 0 auto; }
.nav-search i {
 position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
 color: var(--muted); font-size: 13px; pointer-events: none;
}
.nav-search input {
 width: 100%;
 min-height: 42px;
 border-radius: 999px;
 border: 1px solid var(--line);
 background: var(--blue-mist);
 padding: 0 12px 0 36px;
 color: var(--ink);
}
.nav-cta { white-space: nowrap; flex: 0 0 auto; }
.menu-toggle {
 display: none;
 width: 44px; height: 44px;
 border-radius: 12px;
 border: 1px solid var(--line);
 background: #fff;
 color: var(--blue-deep);
 place-items: center;
}
.drawer { display: none; }
.drawer a {
 display: block;
 padding: 10px 12px;
 border-radius: 12px;
 font-weight: 600;
 color: var(--blue-deep);
}
.drawer a:hover, .drawer a:focus-visible { background: var(--blue-soft); }
.drawer a.active { background: var(--blue-deep); color: #fff; }
.drawer .nav-search { width: 100%; margin: 8px 0 4px; }
.btn {
 display: inline-flex; align-items: center; justify-content: center; gap: 8px;
 min-height: 46px; padding: 0 18px;
 border-radius: 999px; border: 1px solid transparent;
 font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
 outline: 3px solid rgba(31,111,235,.28);
 outline-offset: 2px;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 20px rgba(31,111,235,.22); }
.btn-primary:hover { background: #195fd0; }
.btn-ghost { background: #fff; color: var(--blue-deep); border-color: #c9d8ea; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2 { font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); margin: 0; }
.lead { margin: 12px 0 0; color: var(--muted); }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; margin: 0; }
.sup-hero {
 position: relative;
 padding: 46px 0 56px;
 background:
  linear-gradient(100deg, rgba(255,255,255,.96) 0%, rgba(244,248,252,.93) 48%, rgba(244,248,252,.8) 100%),
  url("/assets/images/c1322bbcdc218772.jpg") center/cover no-repeat;
}
.sup-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 700; margin: 0 0 16px; }
.crumb a { color: var(--blue-deep); }
.crumb a:hover { color: var(--blue); }
.sup-hero h1 { font-size: 48px; line-height: 1.12; letter-spacing: -1px; color: var(--blue-ink); margin: 8px 0 0; }
.sup-hero .hero-lead { margin-top: 16px; color: var(--muted); font-size: 17px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.fact-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag {
 display: inline-flex; align-items: center; gap: 6px;
 padding: 6px 11px; border-radius: 999px;
 background: #fff; color: var(--blue-deep);
 border: 1px solid var(--line);
 font-size: 13px; font-weight: 700;
 box-shadow: var(--shadow-sm);
}
.tag i { color: var(--blue); }
.tag.ok i { color: var(--ok); }
.tag.warn i { color: var(--warn); }
.sup-photo { position: relative; margin: 0; }
.sup-photo img {
 width: 100%; height: 460px; object-fit: cover;
 border-radius: 28px;
 box-shadow: 0 24px 50px rgba(16,36,63,.14);
 border: 1px solid rgba(255,255,255,.8);
}
.sup-caption {
 position: absolute; left: 18px; bottom: 18px;
 display: flex; gap: 12px; align-items: center;
 background: #fff; border-radius: 18px;
 padding: 12px 14px; width: min(280px, calc(100% - 36px));
 box-shadow: var(--shadow);
}
.sup-caption i { color: var(--ok); font-size: 20px; }
.sup-caption strong { display: block; font-size: 14px; }
.sup-caption span { color: var(--muted); font-size: 12px; }
.channel-list { display: grid; gap: 12px; }
.channel {
 display: grid;
 grid-template-columns: 64px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-left: 5px solid var(--blue);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
 transition: transform .2s ease, box-shadow .2s ease;
}
.channel:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.channel .ico {
 width: 64px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue-deep); font-size: 22px;
}
.channel h3 { margin: 0; font-size: 18px; color: var(--blue-ink); }
.channel p { margin: 4px 0 0; color: var(--muted); }
.channel a { color: var(--blue-deep); font-weight: 700; }
.channel a:hover { color: var(--blue); }
.channel em {
 font-style: normal; font-weight: 800; color: var(--gold);
 background: #f8f1e6; border-radius: 999px; padding: 6px 10px; font-size: 13px;
}
.case-list { display: grid; gap: 12px; }
.case {
 display: grid;
 grid-template-columns: 92px 1fr auto;
 gap: 16px;
 align-items: center;
 background: #fff;
 border: 1px solid var(--line);
 border-radius: 20px;
 padding: 16px 18px;
 box-shadow: var(--shadow-sm);
}
.case .code {
 width: 92px; height: 64px; border-radius: 16px;
 display: grid; place-items: center;
 background: var(--blue-soft); color: var(--blue-deep); font-weight: 800;
}
.case h3 { margin: 0 0 4px; font-size: 18px; color: var(--blue-ink); }
.case p { margin: 0; color: var(--muted); }
.pill { border-radius: 999px; padding: 6px 10px; font-size: 12px; font-weight: 800; white-space: nowrap; }
.pill.live { background: #e7f6ef; color: var(--ok); }
.pill.wait { background: #f8f1e6; color: var(--warn); }
.pill.hot { background: #fdecea; color: var(--danger); }
.empty-note { display: none; margin: 14px 0 0; color: var(--muted); font-weight: 600; }
.empty-note.show { display: block; }
.step-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
.step-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.step-list li {
 display: grid; grid-template-columns: 74px 1fr; gap: 14px;
 padding: 0 0 22px;
 position: relative;
}
.step-list li:not(:last-child)::before {
 content: "";
 position: absolute; left: 28px; top: 58px; bottom: 0;
 width: 2px; background: #d5e3f5;
}
.step-no {
 width: 58px; height: 58px; border-radius: 18px;
 display: grid; place-items: center;
 background: var(--blue-deep); color: #fff; font-weight: 800;
 box-shadow: var(--shadow-sm);
}
.step-list h3 { margin: 4px 0 6px; font-size: 18px; color: var(--blue-ink); }
.step-list p { margin: 0; color: var(--muted); }
.metric-band {
 display: grid; grid-template-columns: 1.1fr repeat(3, 1fr); gap: 18px;
 background: #fff; border: 1px solid var(--line); border-radius: 28px;
 box-shadow: var(--shadow); padding: 28px;
}
.metric-band h2 { margin: 8px 0 0; font-size: 32px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); }
.metric { padding-left: 18px; border-left: 1px solid var(--line); }
.metric b { display: block; font-size: 34px; letter-spacing: -1px; color: var(--blue); line-height: 1.1; }
.metric span { display: block; margin-top: 6px; color: var(--muted); font-weight: 600; }
.scope-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: center; }
.scope-photo { margin: 0; border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.scope-photo img { width: 100%; height: 420px; object-fit: cover; }
.check-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.check-list li {
 display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start;
 background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px;
}
.check-list i { color: var(--ok); margin-top: 3px; }
.note-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
.note {
 background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow-sm); overflow: hidden;
 display: grid;
}
.note img { width: 100%; height: 230px; object-fit: cover; }
.note div { padding: 20px 22px 22px; }
.note h3 { margin: 8px 0 8px; font-size: 22px; line-height: 1.35; color: var(--blue-ink); }
.note p { margin: 0; color: var(--muted); }
.note-side { display: grid; gap: 18px; }
.note-side .note img { height: 120px; }
.note-side h3 { font-size: 18px; }
.faq-list { display: grid; gap: 10px; }
.faq-list details {
 background: #fff; border: 1px solid var(--line); border-radius: 18px;
 box-shadow: var(--shadow-sm); padding: 0 18px;
}
.faq-list summary {
 cursor: pointer; list-style: none; min-height: 64px;
 display: flex; align-items: center; justify-content: space-between; gap: 12px;
 font-weight: 800; color: var(--blue-ink);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--blue); font-size: 22px; font-weight: 700; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list details p { margin: 0 0 16px; color: var(--muted); }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
.form-card {
 background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
 box-shadow: var(--shadow); padding: 22px;
}
.request-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.request-grid .full { grid-column: 1 / -1; }
.field { display: grid; gap: 6px; }
.field span { font-size: 13px; font-weight: 700; color: var(--blue-deep); }
.field input, .field select, .field textarea {
 width: 100%; border: 1px solid var(--line); background: var(--blue-mist);
 border-radius: 14px; min-height: 48px; padding: 12px 14px; color: var(--ink);
}
.field textarea { min-height: 130px; resize: vertical; }
.form-card .btn { margin-top: 14px; }
.form-note { display: none; margin: 12px 0 0; padding: 12px 14px; border-radius: 14px; background: #e7f6ef; color: #0c6b4a; font-weight: 700; }
.form-note.show { display: block; }
.site-footer { background: var(--blue-ink); color: #d5e2f2; padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.footer-brand h2 { font-size: 18px; color: #fff; margin: 0; line-height: 1.3; }
.site-footer h3 { margin: 0 0 10px; color: #fff; font-size: 16px; }
.site-footer p { color: #c5d4e8; margin: 0 0 8px; }
.site-footer a:hover { color: #fff; }
.fine {
 margin-top: 28px; border-top: 1px solid rgba(255,255,255,.12);
 padding: 16px 0 22px; display: flex; justify-content: space-between; gap: 12px;
 color: #9fb0c8; font-size: 13px;
}
@media (max-width: 1100px) {
 .nav-links, .header-row > .nav-search { display: none; }
 .menu-toggle { display: inline-grid; margin-left: 8px; }
 .nav-cta { margin-left: auto; }
 .drawer.open { display: grid; gap: 4px; padding: 8px 20px 16px; border-top: 1px solid var(--line); background: #fff; }
 .sup-hero-grid, .step-layout, .scope-grid, .contact-grid, .note-grid { grid-template-columns: 1fr; }
 .metric-band { grid-template-columns: 1fr 1fr; }
 .metric:nth-child(2) { border-left: 0; padding-left: 0; }
}
@media (max-width: 768px) {
 .section { padding: 58px 0; }
 .sup-hero h1, .section-head h2, .metric-band h2 { font-size: 32px; }
 .sup-photo img, .scope-photo img { height: 300px; }
 .channel, .case { grid-template-columns: 64px 1fr; }
 .channel em, .case .pill { grid-column: 2; justify-self: start; }
 .case .code { width: 64px; }
 .metric-band, .request-grid, .footer-grid { grid-template-columns: 1fr; }
 .metric { border-left: 0; padding-left: 0; padding-top: 8px; }
 .footer-grid { gap: 22px; }
}
@media (max-width: 520px) {
 .container { width: min(var(--container), calc(100% - 28px)); }
 .brand-text small { display: none; }
 .nav-cta { min-height: 40px; padding: 0 12px; font-size: 13px; }
 .sup-hero { padding: 28px 0 36px; }
 .sup-hero h1 { font-size: 30px; }
 .hero-actions .btn, .form-card .btn { width: 100%; }
 .sup-caption { left: 12px; right: 12px; width: auto; }
 .fine { flex-direction: column; }
 .step-list li { grid-template-columns: 58px 1fr; }
}
@media (prefers-reduced-motion: reduce) {
 * { transition: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category7 */
:root {
  --blue: #1f6feb;
  --blue-deep: #16325c;
  --blue-ink: #10243f;
  --blue-soft: #e7f1fc;
  --blue-mist: #f4f8fc;
  --ink: #17233b;
  --muted: #5c6b82;
  --line: #e1e8f2;
  --white: #ffffff;
  --gold: #9a7340;
  --ok: #0e8f62;
  --warn: #b86e12;
  --danger: #b42318;
  --shadow: 0 18px 44px rgba(22, 50, 92, 0.08);
  --shadow-sm: 0 8px 22px rgba(22, 50, 92, 0.06);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
  --header: 78px;
  --font: "Be Vietnam Pro", "Segoe UI", sans-serif;
}
/* roulang page: category7 */
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.container {
  width: min(var(--container), calc(100% - 40px));
  max-width: none;
  margin: 0 auto;
  padding: 0;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(16, 36, 63, 0.04);
  backdrop-filter: blur(12px);
}
.header-row {
  min-height: var(--header);
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 188px; color: var(--blue-ink); }
.brand-mark {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center;
  background: var(--blue-deep); color: #fff; font-size: 20px;
  box-shadow: var(--shadow-sm); flex: 0 0 auto;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 12px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-links a, .drawer-links a {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus-visible,
.drawer-links a:hover, .drawer-links a:focus-visible { background: var(--blue-soft); }
.nav-links a.active, .drawer-links a.active { background: var(--blue-deep); color: #fff; }
.nav-search { position: relative; width: 180px; flex: 0 0 auto; }
.nav-search i, .drawer-search i {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 13px;
}
.nav-search input, .drawer-search input {
  width: 100%;
  min-height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--blue-mist);
  padding: 0 14px 0 36px;
  color: var(--ink);
}
.nav-cta { white-space: nowrap; }
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue-deep);
}
.drawer { display: none; padding-bottom: 16px; }
.drawer.open { display: block; }
.drawer-links { display: flex; flex-direction: column; align-items: stretch; gap: 6px; margin-bottom: 12px; }
.drawer-links a { display: block; }
.drawer-search { position: relative; margin-bottom: 12px; }
.sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 18px;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(31,111,235,.28);
  outline-offset: 2px;
}
a.btn-primary, button.btn-primary, .btn-primary {
  background: var(--blue); color: #fff; border-color: transparent;
  box-shadow: 0 10px 20px rgba(31,111,235,.22);
}
a.btn-primary:hover, button.btn-primary:hover, .btn-primary:hover { background: #195fd0; color: #fff; }
a.btn-ghost, button.btn-ghost, .btn-ghost {
  background: #fff; color: var(--blue-deep); border-color: #c9d8ea;
}
a.btn-ghost:hover, button.btn-ghost:hover, .btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: #fff; }
.section { padding: 78px 0; }
.section-soft { background: var(--blue-mist); }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head h2, .split-copy h2, .band-copy h2, .roadmap h2 {
  font-size: 34px; line-height: 1.25; letter-spacing: -.4px; color: var(--blue-ink); margin: 0;
}
.lead { margin-top: 12px; color: var(--muted); }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; }
.panel, .ticket, .quote, .photo-card, .form-card, .roadmap {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.community-hero {
  position: relative;
  padding: 42px 0 56px;
  background:
    linear-gradient(105deg, rgba(255,255,255,.95) 0%, rgba(244,248,252,.92) 48%, rgba(244,248,252,.78) 100%),
    url("/assets/images/50928656d38f181d.webp") center/cover no-repeat;
}
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.crumb a { color: var(--blue-deep); }
.crumb a:hover { color: var(--blue); }
.community-hero h1 { font-size: 48px; line-height: 1.12; letter-spacing: -1px; color: var(--blue-ink); margin: 8px 0 0; }
.hero-lead { margin: 16px 0 0; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.hero-figure { margin: 22px 0 0; border-radius: 24px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); background: #fff; }
.hero-figure img { width: 100%; height: 230px; object-fit: cover; }
.hero-figure figcaption { padding: 12px 16px; color: var(--muted); font-size: 14px; }
.roadmap { padding: 22px; }
.roadmap-top { margin-bottom: 8px; }
.node-list { list-style: none; margin: 16px 0 0; padding: 0; }
.node-list li { position: relative; padding: 0 0 18px 30px; }
.node-list li::before {
  content: "";
  position: absolute; left: 2px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 3px solid var(--blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}
.node-list li::after {
  content: "";
  position: absolute; left: 7px; top: 22px; bottom: 0; width: 2px; background: #d7e3f2;
}
.node-list li:last-child { padding-bottom: 0; }
.node-list li:last-child::after { display: none; }
.node-list li.done::before { background: var(--ok); border-color: var(--ok); box-shadow: 0 0 0 4px rgba(14,143,98,.12); }
.node-list li.now::before { background: var(--blue); }
.node-list b { display: block; color: var(--blue-ink); font-size: 15px; }
.node-list span { color: var(--muted); font-size: 14px; }
.mini-sub { display: flex; gap: 8px; margin-top: 18px; }
.mini-sub input {
  flex: 1; min-height: 46px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--blue-mist); padding: 0 16px; color: var(--ink);
}
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 28px; padding: 0 10px; border-radius: 999px;
  background: var(--blue-soft); color: var(--blue-deep);
  font-size: 12px; font-weight: 700;
}
.badge-gold { background: #f8f1e6; color: var(--gold); }
.badge-ok { background: #e7f7f0; color: var(--ok); }
.badge-warn { background: #fff4e6; color: var(--warn); }
.feature-card { overflow: hidden; height: 100%; }
.feature-card img { width: 100%; height: 280px; object-fit: cover; }
.feature-card .copy, .side-post { padding: 18px 20px 20px; }
.feature-card h3, .side-post h3, .topic-row h3, .voice h3 { margin: 8px 0 0; color: var(--blue-ink); font-size: 22px; line-height: 1.35; }
.meta { color: var(--muted); font-size: 13px; font-weight: 600; }
.side-stack { display: flex; flex-direction: column; gap: 14px; height: 100%; }
.side-post { display: grid; grid-template-columns: 108px 1fr; gap: 14px; align-items: center; padding: 12px; }
.side-post img { width: 108px; height: 92px; object-fit: cover; border-radius: 16px; }
.side-post h3 { font-size: 16px; }
.topic-row {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.topic-row:hover { transform: translateX(4px); border-color: #c5d8f0; box-shadow: var(--shadow); }
.topic-no {
  width: 72px; height: 64px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--blue-soft); color: var(--blue-deep); font-weight: 800;
}
.topic-row p { margin: 4px 0 0; color: var(--muted); }
.timeline { position: relative; margin: 0; padding: 0; list-style: none; }
.timeline::before {
  content: ""; position: absolute; left: 18px; top: 8px; bottom: 8px; width: 2px; background: #d5e3f3;
}
.timeline li {
  position: relative;
  margin: 0 0 14px 0;
  padding: 18px 18px 18px 64px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}
.timeline li:last-child { margin-bottom: 0; }
.timeline i {
  position: absolute; left: 8px; top: 22px;
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: #fff; color: var(--gold); font-size: 12px;
  border: 2px solid #eadcc6;
}
.timeline h3 { margin: 0 0 6px; font-size: 20px; color: var(--blue-ink); }
.timeline p { margin: 0; color: var(--muted); }
.benefit-photo { border-radius: 28px; overflow: hidden; min-height: 100%; border: 1px solid var(--line); box-shadow: var(--shadow); }
.benefit-photo img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.check-list { list-style: none; margin: 18px 0 0; padding: 0; }
.check-list li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--ink);
}
.check-list li:last-child { border-bottom: 0; }
.check-list i { color: var(--ok); margin-top: 4px; }
.stat-line { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.stat-line div { background: var(--blue-mist); border-radius: 16px; padding: 14px; }
.stat-line strong { display: block; font-size: 22px; color: var(--blue-ink); letter-spacing: -.3px; }
.stat-line span { color: var(--muted); font-size: 13px; }
.voice-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: 16px; }
.voice { padding: 22px; height: 100%; }
.voice p { margin: 12px 0 0; color: var(--ink); font-size: 17px; }
.voice footer { margin-top: 16px; color: var(--muted); font-weight: 600; font-size: 14px; }
.voice-side { display: flex; flex-direction: column; gap: 16px; }
.voice.deep { background: var(--blue-ink); color: #fff; border-color: transparent; }
.voice.deep h3, .voice.deep p { color: #fff; }
.voice.deep footer { color: #c5d4e8; }
.rule-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.rule {
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  padding: 18px; box-shadow: var(--shadow-sm); min-height: 210px;
}
.rule em { display: block; font-style: normal; color: var(--blue); font-weight: 800; font-size: 13px; }
.rule h3 { margin: 10px 0; font-size: 18px; color: var(--blue-ink); }
.rule p { margin: 0; color: var(--muted); }
.channel {
  display: flex; gap: 14px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  padding: 18px; box-shadow: var(--shadow-sm); height: 100%;
}
.channel i {
  width: 46px; height: 46px; border-radius: 14px; flex: 0 0 auto;
  display: grid; place-items: center; background: var(--blue-soft); color: var(--blue-deep);
}
.channel h3 { margin: 0 0 4px; font-size: 18px; color: var(--blue-ink); }
.channel p { margin: 0; color: var(--muted); }
.signup-wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.form-card { padding: 26px; }
.form-card h2 { margin-top: 8px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field span { font-weight: 700; font-size: 14px; color: var(--blue-deep); }
.field input, .field select {
  min-height: 48px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--blue-mist); padding: 0 14px; color: var(--ink); width: 100%;
}
.form-note {
  margin-top: 14px; padding: 12px 14px; border-radius: 14px;
  background: #e7f7f0; color: var(--ok); font-weight: 700;
}
.quiet { color: var(--muted); font-size: 13px; margin-top: 10px; }
.aside-note {
  border-radius: 28px; overflow: hidden; position: relative; min-height: 100%;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.aside-note img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.aside-note div {
  position: absolute; left: 16px; right: 16px; bottom: 16px;
  background: rgba(255,255,255,.94); border-radius: 18px; padding: 16px;
}
.aside-note strong { display: block; color: var(--blue-ink); }
.empty-note { margin-top: 12px; color: var(--muted); }
.site-footer { background: var(--blue-ink); color: #d5e2f2; padding: 48px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.1fr; gap: 28px; }
.footer-brand { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.site-footer .brand-mark { background: #2d7ff0; }
.footer-brand h2 { margin: 0; font-size: 20px; color: #fff; line-height: 1.3; }
.site-footer h3 { margin: 0 0 10px; font-size: 16px; color: #fff; }
.site-footer p { margin: 0 0 8px; color: #c5d4e8; }
.site-footer a:hover { color: #fff; }
.fine {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding: 16px 0 0;
  color: #9fb0c6; font-size: 13px;
}
[hidden] { display: none !important; }
@media (max-width: 1180px) {
  .nav-search { display: none; }
  .brand { min-width: 150px; }
  .nav-links a { padding: 8px; font-size: 13px; }
}
@media (max-width: 1024px) {
  .header-row > .nav-links, .header-row > .nav-cta { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .community-hero h1 { font-size: 40px; }
  .section-head h2, .split-copy h2, .roadmap h2 { font-size: 30px; }
  .voice-layout, .signup-wrap, .rule-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .benefit-photo img, .aside-note img { min-height: 280px; }
}
@media (max-width: 768px) {
  .section { padding: 58px 0; }
  .community-hero { padding: 28px 0 40px; }
  .community-hero h1 { font-size: 34px; }
  .hero-figure img, .feature-card img { height: 210px; }
  .side-post { grid-template-columns: 88px 1fr; }
  .topic-row { grid-template-columns: 56px 1fr; }
  .topic-row .badge { display: none; }
  .voice-layout, .signup-wrap, .rule-grid, .fields, .stat-line, .footer-grid { grid-template-columns: 1fr; }
  .mini-sub { flex-direction: column; }
  .timeline::before { left: 16px; }
}
@media (max-width: 520px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .community-hero h1 { font-size: 30px; }
  .header-row { gap: 10px; }
  .brand-text strong { font-size: 16px; }
  .topic-row, .timeline li { padding-right: 14px; }
  .fine { flex-direction: column; }
}
@media (min-width: 1025px) {
  .drawer { display: none !important; }
}