/* roulang page: index */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:rgba(13,27,54,.58);
  --bg-panel-2:rgba(8,18,41,.82);
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --cyan-soft:#7dd3fc;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --green:#34d399;
  --amber:#fbbf24;
  --rose:#fb7185;
  --radius-xl:26px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 50px -26px rgba(2,10,30,.95);
  --shadow-soft:0 12px 32px -20px rgba(2,10,30,.9);
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-strong:0 0 34px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 500px at 94% 2%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(820px 720px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-soft);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#bae6fd}
h1,h2,h3,h4{font-weight:800;line-height:1.25;letter-spacing:-.015em;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- Buttons ---------- */
.btn-glow,
.btn-ghost,
.btn-plain{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  color:#03101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 16px 34px -16px rgba(56,189,248,.75);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(125,211,252,.8),0 20px 40px -14px rgba(56,189,248,.85);color:#03101f}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 10px 22px -14px rgba(56,189,248,.8)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);border-color:rgba(125,211,252,.7);transform:translateY(-2px);color:#e0f2fe}
.btn-plain{
  background:transparent;
  border-color:transparent;
  color:var(--cyan-soft);
  padding:12px 16px;
}
.btn-plain:hover{color:#e0f2fe;background:rgba(56,189,248,.08)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(3,7,18,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-stuck{box-shadow:0 18px 40px -28px rgba(0,0,0,.95);background:rgba(3,7,18,.94)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.02em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  color:#04101f;
  font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.45);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand-text em{font-style:normal;background:linear-gradient(90deg,#7dd3fc,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}

.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted-2);
  white-space:nowrap;
}
.nav-links a:hover{color:#e0f2fe;background:rgba(56,189,248,.09)}
.nav-links a.active{
  color:#e0f2fe;
  background:rgba(56,189,248,.12);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.34);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2563eb,#38bdf8);
  box-shadow:0 0 10px rgba(56,189,248,.8);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.07);
  color:var(--cyan-soft);
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.nav-burger:hover{background:rgba(56,189,248,.16)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);
  backdrop-filter:blur(16px);
  padding:12px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:13px 20px;
  color:var(--muted-2);
  font-weight:600;
  font-size:15px;
  border-radius:12px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(56,189,248,.1);color:#e0f2fe}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.hero-media{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  filter:saturate(.9);
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.84) 0%,rgba(4,12,30,.9) 55%,rgba(3,7,18,.98) 100%),
             linear-gradient(105deg,rgba(37,99,235,.35) 0%,rgba(3,7,18,.2) 55%,rgba(56,189,248,.24) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 65% at 50% 40%,#000 25%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 65% at 50% 40%,#000 25%,transparent 100%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:92px 0 96px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:8px 16px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:#bae6fd;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-strong);
  box-shadow:var(--glow);
}
.hero h1{
  font-size:clamp(28px,3.6vw,46px);
  margin:22px 0 18px;
  background:linear-gradient(120deg,#ffffff 12%,#bae6fd 58%,#38bdf8 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16.5px;
  color:var(--muted-2);
  max-width:660px;
  line-height:1.7;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{
  margin-top:22px;
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13.5px;color:var(--muted);
}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note i{color:var(--cyan)}

.hero-player{
  position:relative;
  border-radius:var(--radius-xl);
  padding:22px;
  background:linear-gradient(160deg,rgba(13,27,54,.72),rgba(6,14,32,.88));
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.player-frame{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:16/10;
  background:#050c1c;
  border:1px solid rgba(56,189,248,.24);
}
.player-frame img{width:100%;height:100%;object-fit:cover;opacity:.78}
.player-frame::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(60% 70% at 50% 50%,rgba(3,7,18,.15),rgba(3,7,18,.75));
}
.play-btn{
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  z-index:3;
  width:74px;height:74px;
  border-radius:50%;
  border:2px solid rgba(125,211,252,.85);
  background:rgba(6,16,36,.72);
  backdrop-filter:blur(8px);
  color:#e0f2fe;
  font-size:22px;
  display:grid;place-items:center;
  box-shadow:0 0 0 10px rgba(56,189,248,.1),0 0 34px rgba(56,189,248,.6);
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
  animation:pulse-ring 2.6s infinite;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.08);background:rgba(37,99,235,.55);box-shadow:0 0 0 14px rgba(56,189,248,.14),0 0 44px rgba(56,189,248,.8)}
@keyframes pulse-ring{
  0%,100%{box-shadow:0 0 0 10px rgba(56,189,248,.1),0 0 34px rgba(56,189,248,.6)}
  50%{box-shadow:0 0 0 18px rgba(56,189,248,.04),0 0 40px rgba(56,189,248,.75)}
}
.player-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px}
.player-meta strong{font-size:14.5px;font-weight:700}
.player-meta span{font-size:12.5px;color:var(--muted)}
.live-dot{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;color:#fca5a5;
  padding:5px 12px;border-radius:999px;
  background:rgba(244,63,94,.12);
  border:1px solid rgba(244,63,94,.35);
}
.live-dot i{font-size:7px;animation:blink 1.4s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------- Stat band ---------- */
.stat-band{
  background:linear-gradient(100deg,rgba(8,18,41,.92),rgba(6,14,32,.92));
  border-bottom:1px solid var(--line);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
}
.stat{
  padding:30px 22px;
  background:rgba(4,10,24,.72);
  text-align:left;
}
.stat strong{
  display:block;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  background:linear-gradient(120deg,#e0f2fe,#38bdf8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.02em;
}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.5}

/* ---------- Sections ---------- */
.section{padding:88px 0;position:relative}
.section.tight{padding:66px 0}
.band-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,0));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.band-panel{background:rgba(6,14,32,.6);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:#7dd3fc;
  padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.08);
  border:1px solid rgba(56,189,248,.28);
  margin-bottom:18px;
}
.sec-head h2{font-size:clamp(22px,2.7vw,34px);color:#f1f5f9}
.sec-head p{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.7}
.sec-head.left h2{max-width:760px}

/* ---------- Cards / glass ---------- */
.glass{
  background:linear-gradient(155deg,rgba(15,31,61,.62),rgba(6,13,30,.78));
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.glass:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 24px 48px -26px rgba(56,189,248,.5)}

/* ---------- Pain list ---------- */
.pain-layout{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.pain-list{display:grid;gap:14px}
.pain-item{
  display:flex;gap:16px;
  padding:20px 22px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(15,31,61,.55),rgba(6,13,30,.7));
  border:1px solid var(--line);
  border-left:3px solid rgba(251,113,133,.65);
}
.pain-item i{color:var(--rose);font-size:17px;margin-top:4px;flex:0 0 auto}
.pain-item h3{font-size:16px;margin-bottom:6px;color:#f8fafc}
.pain-item p{font-size:14px;color:var(--muted);line-height:1.62}

.quote-panel{
  padding:30px 30px 32px;
  border-radius:var(--radius-xl);
  background:linear-gradient(160deg,rgba(37,99,235,.16),rgba(6,13,30,.85));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.quote-panel i.mark{font-size:26px;color:var(--cyan);opacity:.85}
.quote-panel p{margin-top:16px;font-size:15.5px;color:var(--muted-2);line-height:1.7}
.quote-panel footer{margin-top:20px;font-size:13px;color:var(--muted);letter-spacing:.02em}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;
  padding:28px 20px 24px;
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(15,31,61,.6),rgba(5,12,28,.82));
  border:1px solid var(--line);
  overflow:hidden;
}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  top:14px;right:16px;
  font-size:34px;
  font-weight:800;
  color:rgba(56,189,248,.13);
  letter-spacing:-.04em;
}
.step i{font-size:20px;color:var(--cyan);margin-bottom:16px;display:block}
.step h3{font-size:15.5px;margin-bottom:9px}
.step p{font-size:13.8px;color:var(--muted);line-height:1.6}

/* ---------- Technique block ---------- */
.tech-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:start}
.tech-visual{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  min-height:340px;
}
.tech-visual img{width:100%;height:100%;object-fit:cover;min-height:340px}
.tech-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.1),rgba(3,7,18,.82));
}
.tech-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  padding:14px 18px;
  border-radius:var(--radius);
  background:rgba(4,10,24,.82);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(10px);
}
.tech-badge strong{display:block;font-size:22px;color:#e0f2fe;letter-spacing:-.02em}
.tech-badge span{font-size:12.5px;color:var(--muted)}

.tech-items{display:grid;gap:16px}
.tech-item{
  padding:22px 24px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(15,31,61,.5),rgba(6,13,30,.72));
  border:1px solid var(--line);
  border-left:3px solid rgba(56,189,248,.6);
}
.tech-item h3{font-size:16.5px;margin-bottom:10px;color:#eaf6ff;line-height:1.45}
.tech-item p{font-size:14.3px;color:var(--muted);line-height:1.68}

/* ---------- Result metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.metric{
  padding:26px 24px;
  border-radius:var(--radius);
  background:rgba(6,14,32,.72);
  border:1px solid var(--line);
}
.metric-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.metric-head strong{font-size:28px;font-weight:800;color:#e0f2fe;letter-spacing:-.02em}
.metric-head span{font-size:13px;color:#7dd3fc;font-weight:600}
.metric p{margin-top:10px;font-size:13.8px;color:var(--muted);line-height:1.6}
.bar{height:6px;border-radius:999px;background:rgba(148,163,184,.18);margin-top:16px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2563eb,#38bdf8);box-shadow:0 0 12px rgba(56,189,248,.7)}

/* ---------- Testimonials ---------- */
.tst-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tst{
  padding:26px 24px 24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(15,31,61,.6),rgba(5,12,28,.8));
  border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;
}
.tst .stars{color:var(--amber);font-size:13px;letter-spacing:2px}
.tst p{font-size:14.4px;color:var(--muted-2);line-height:1.7;flex:1 1 auto}
.tst footer{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.avatar{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;
  color:#04101f;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
}
.tst footer strong{display:block;font-size:14px}
.tst footer span{display:block;font-size:12.3px;color:var(--muted)}

/* ---------- Audience ---------- */
.aud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.aud-card{
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(155deg,rgba(15,31,61,.55),rgba(5,12,28,.78));
}
.aud-card i{font-size:21px;color:var(--cyan);margin-bottom:16px;display:block}
.aud-card h3{font-size:16px;margin-bottom:10px}
.aud-card p{font-size:14px;color:var(--muted);line-height:1.66}

/* ---------- Fit / unfit ---------- */
.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.fit-col{
  padding:30px 28px;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:rgba(6,14,32,.68);
}
.fit-col.good{border-top:3px solid rgba(52,211,153,.85)}
.fit-col.bad{border-top:3px solid rgba(251,113,133,.85)}
.fit-col h3{display:flex;align-items:center;gap:11px;font-size:17.5px;margin-bottom:20px}
.fit-col.good h3 i{color:var(--green)}
.fit-col.bad h3 i{color:var(--rose)}
.fit-col li{
  display:flex;gap:12px;
  padding:12px 0;
  font-size:14.4px;
  color:var(--muted-2);
  border-bottom:1px dashed rgba(148,163,184,.16);
}
.fit-col li:last-child{border-bottom:0}
.fit-col li i{font-size:12px;margin-top:7px;flex:0 0 auto}
.fit-col.good li i{color:var(--green)}
.fit-col.bad li i{color:var(--rose)}

/* ---------- Plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.plan{
  padding:30px 26px 28px;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(15,31,61,.6),rgba(5,12,28,.84));
  display:flex;flex-direction:column;
  position:relative;
}
.plan.featured{
  border-color:var(--line-strong);
  box-shadow:0 0 0 1px rgba(56,189,248,.3),0 26px 54px -30px rgba(56,189,248,.7);
}
.plan.featured::before{
  content:"Được theo dõi nhiều nhất";
  position:absolute;top:-13px;left:26px;
  font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:#04101f;
  padding:6px 14px;border-radius:999px;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
}
.plan h3{font-size:18px;margin-bottom:8px}
.plan .plan-sub{font-size:13.4px;color:var(--muted);line-height:1.6;margin-bottom:22px}
.plan ul{display:grid;gap:11px;margin-bottom:26px;flex:1 1 auto}
.plan ul li{display:flex;gap:11px;font-size:14.1px;color:var(--muted-2);line-height:1.55}
.plan ul li i{color:var(--cyan);font-size:12px;margin-top:6px;flex:0 0 auto}
.plan .plan-cta{margin-top:auto}

/* ---------- Category wall ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line);
  min-height:290px;
  display:flex;align-items:flex-end;
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.cat-card:hover{border-color:var(--line-strong);transform:translateY(-5px);box-shadow:0 28px 56px -28px rgba(56,189,248,.65)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:transform .5s ease,opacity .35s ease}
.cat-card:hover img{transform:scale(1.06);opacity:.62}
.cat-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.25) 0%,rgba(3,7,18,.92) 78%);
}
.cat-body{position:relative;z-index:2;padding:26px 24px 24px}
.cat-body .chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:#bae6fd;padding:6px 12px;border-radius:999px;
  background:rgba(56,189,248,.14);
  border:1px solid rgba(56,189,248,.34);
  margin-bottom:14px;
}
.cat-body h3{font-size:18.5px;margin-bottom:9px}
.cat-body p{font-size:13.6px;color:var(--muted-2);line-height:1.6}
.cat-card .go{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;font-size:13.6px;font-weight:700;color:#bae6fd;
}
.cat-card .go i{transition:transform .25s ease}
.cat-card:hover .go i{transform:translateX(5px)}

/* ---------- News ---------- */
.news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:38px;align-items:start}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(15,31,61,.55),rgba(5,12,28,.82));
  display:flex;flex-direction:column;
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.news-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 22px 44px -26px rgba(56,189,248,.55)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#050c1c}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.88}
.news-card:hover .news-thumb img{transform:scale(1.06);opacity:1}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:11px;flex:1 1 auto}
.news-cat{
  align-self:flex-start;
  font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:#7dd3fc;padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.26);
}
.news-body h3{font-size:15.5px;line-height:1.48}
.news-body h3 a{color:#f1f5f9}
.news-body h3 a:hover{color:#7dd3fc}
.news-body p{font-size:13.5px;color:var(--muted);line-height:1.62;flex:1 1 auto}
.news-body time{font-size:12.4px;color:#64748b;display:flex;align-items:center;gap:8px}
.empty-note{
  padding:30px 26px;
  border-radius:var(--radius);
  border:1px dashed rgba(56,189,248,.3);
  color:var(--muted);
  font-size:14.5px;
  background:rgba(6,14,32,.55);
}

.side-panel{
  padding:26px 24px;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(15,31,61,.6),rgba(5,12,28,.85));
  box-shadow:var(--shadow-soft);
}
.side-panel h3{font-size:17px;margin-bottom:14px}
.side-panel ol{display:grid;gap:14px;counter-reset:side}
.side-panel ol li{
  display:flex;gap:13px;
  font-size:14px;color:var(--muted-2);line-height:1.6;
  counter-increment:side;
}
.side-panel ol li::before{
  content:counter(side);
  flex:0 0 auto;
  width:26px;height:26px;border-radius:9px;
  display:grid;place-items:center;
  font-size:12.5px;font-weight:800;color:#04101f;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
}
.side-divider{height:1px;background:var(--line);margin:22px 0}
.side-list{display:grid;gap:12px}
.side-list li{font-size:13.8px;color:var(--muted);display:flex;gap:10px;line-height:1.58}
.side-list li i{color:var(--cyan);font-size:11px;margin-top:6px;flex:0 0 auto}

/* ---------- Assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure{
  padding:26px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(6,14,32,.68);
  text-align:left;
}
.assure .ico{
  width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(56,189,248,.12);
  border:1px solid rgba(56,189,248,.3);
  color:var(--cyan);font-size:17px;margin-bottom:16px;
}
.assure h3{font-size:15.5px;margin-bottom:9px}
.assure p{font-size:13.7px;color:var(--muted);line-height:1.62}

/* ---------- Final CTA ---------- */
.final-cta{
  position:relative;
  padding:0;
  border-top:1px solid var(--line);
  overflow:hidden;
}
.final-cta .cta-media{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
}
.final-cta .cta-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(3,7,18,.94) 0%,rgba(9,22,48,.88) 52%,rgba(37,99,235,.55) 100%);
}
.cta-inner{
  position:relative;z-index:2;
  padding:78px 0;
  display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;
}
.cta-inner h2{font-size:clamp(23px,2.9vw,34px);line-height:1.28}
.cta-inner p{margin-top:18px;color:var(--muted-2);font-size:15.4px;max-width:620px;line-height:1.7}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{
  padding:24px;
  border-radius:var(--radius-xl);
  border:1px solid var(--line-strong);
  background:rgba(4,10,24,.72);
  backdrop-filter:blur(14px);
}
.cta-side strong{display:block;font-size:15px;margin-bottom:14px}
.cta-side ul{display:grid;gap:12px}
.cta-side li{font-size:13.7px;color:var(--muted-2);display:flex;gap:10px;line-height:1.55}
.cta-side li i{color:var(--cyan);font-size:11px;margin-top:6px;flex:0 0 auto}

/* ---------- Footer ---------- */
.site-footer{
  background:linear-gradient(180deg,rgba(3,7,18,.98),rgba(5,12,28,.98));
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:38px}
.foot-brand{display:flex;align-items:center;gap:11px;color:#f1f5f9;font-weight:800;font-size:15.5px;margin-bottom:18px}
.foot-brand .brand-mark{width:36px;height:36px;font-size:15px}
.foot-col p{font-size:13.7px;color:var(--muted);line-height:1.7}
.foot-col h4{font-size:13.5px;letter-spacing:.1em;text-transform:uppercase;color:#7dd3fc;margin-bottom:18px}
.foot-col ul{display:grid;gap:11px}
.foot-col ul a{font-size:13.8px;color:var(--muted-2)}
.foot-col ul a:hover{color:#7dd3fc}
.foot-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.foot-tags span{
  font-size:11.6px;font-weight:600;
  padding:6px 12px;border-radius:999px;
  color:var(--muted-2);
  background:rgba(56,189,248,.07);
  border:1px solid rgba(56,189,248,.2);
}
.foot-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:12.8px;color:#64748b;
}
.foot-bottom .age{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(148,163,184,.3);
  color:var(--muted);font-weight:700;font-size:11.6px;
}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:50;
  width:56px;height:56px;
  border-radius:50%;
  display:grid;place-items:center;
  color:#a5f3fc;
  font-size:19px;
  background:
    linear-gradient(rgba(6,14,32,.9),rgba(6,14,32,.9)) padding-box,
    linear-gradient(135deg,#2563eb,#38bdf8) border-box;
  border:2px solid transparent;
  box-shadow:0 0 22px rgba(56,189,248,.5);
  backdrop-filter:blur(12px);
  transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
  opacity:.82;
  animation:fab-pulse 3s infinite;
}
.fab-support:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 36px rgba(56,189,248,.85);color:#e0f2fe}
.fab-support:active{transform:scale(.94)}
.fab-support .dot{
  position:absolute;top:2px;right:2px;
  width:13px;height:13px;border-radius:50%;
  background:#f43f5e;
  box-shadow:0 0 0 2px rgba(3,7,18,.9);
  animation:blink 1.6s infinite;
}
@keyframes fab-pulse{
  0%,100%{box-shadow:0 0 20px rgba(56,189,248,.45)}
  50%{box-shadow:0 0 34px rgba(56,189,248,.8)}
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:74px 0 80px}
  .hero-player{max-width:640px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .stat-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .pain-layout{grid-template-columns:1fr;gap:30px}
  .tech-wrap{grid-template-columns:1fr;gap:30px}
  .tst-grid{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:1fr 1fr}
  .plan-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr 1fr}
  .news-layout{grid-template-columns:1fr;gap:30px}
  .news-grid{grid-template-columns:1fr 1fr}
  .assure-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
  .fit-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .brand-text small{display:none}
  .brand{font-size:14px}
  .btn-glow,.btn-ghost{padding:14px 22px;font-size:14px}
  .hero-actions{gap:11px}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .stat-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .aud-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .hero-inner{padding:56px 0 62px}
  .nav-actions .btn-plain{padding:10px 10px;font-size:13px}
  .nav-actions .btn-glow{padding:11px 16px;font-size:13px}
  .btn-glow,.btn-ghost{width:100%;justify-content:center}
  .hero-actions .btn-play{width:100%}
  .fab-support{bottom:88px;left:14px}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:rgba(13,27,54,.58);
  --bg-panel-2:rgba(8,18,41,.82);
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --cyan-soft:#7dd3fc;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --green:#34d399;
  --amber:#fbbf24;
  --rose:#fb7185;
  --radius-xl:26px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 50px -26px rgba(2,10,30,.95);
  --shadow-soft:0 12px 32px -20px rgba(2,10,30,.9);
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-strong:0 0 34px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 500px at 94% 2%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(820px 720px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-soft);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#bae6fd}
button{font-family:inherit}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.28;font-weight:800;letter-spacing:-.02em}
ul,ol{margin:0 0 16px;padding-left:20px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- Buttons ---------- */
.btn-glow,.btn-ghost,.btn-plain{
  display:inline-flex;align-items:center;gap:10px;
  border-radius:999px;font-weight:700;font-size:15px;line-height:1;
  padding:15px 28px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  color:#03101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 16px 34px -16px rgba(56,189,248,.75);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(125,211,252,.8),0 20px 40px -14px rgba(56,189,248,.85);color:#03101f}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);border-color:rgba(125,211,252,.7);transform:translateY(-2px);color:#e0f2fe}
.btn-plain{background:transparent;color:var(--cyan-soft);padding:12px 16px}
.btn-plain:hover{color:#e0f2fe;background:rgba(56,189,248,.08)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(3,7,18,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-stuck{box-shadow:0 18px 40px -28px rgba(0,0,0,.95);background:rgba(3,7,18,.94)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:800;font-size:16px;letter-spacing:-.02em;flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  color:#04101f;font-size:16px;box-shadow:0 0 18px rgba(56,189,248,.45);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;max-width:min(46vw,340px)}
.brand-text small{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand-text em{font-style:normal;font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;padding:10px 14px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--muted-2);white-space:nowrap;
}
.nav-links a:hover{color:#e0f2fe;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#e0f2fe;background:rgba(56,189,248,.12);box-shadow:inset 0 0 0 1px rgba(56,189,248,.34)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2563eb,#38bdf8);box-shadow:0 0 10px rgba(56,189,248,.8);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(56,189,248,.07);
  color:var(--cyan-soft);align-items:center;justify-content:center;font-size:17px;
}
.nav-burger:hover{background:rgba(56,189,248,.16)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(4,10,24,.97);backdrop-filter:blur(16px);padding:12px 0 20px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:13px 20px;color:var(--muted-2);font-weight:600;font-size:15px;border-radius:12px}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(56,189,248,.1);color:#e0f2fe}

/* ---------- Article hero ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);isolation:isolate}
.article-hero-media{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05)}
.article-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.86) 0%,rgba(4,12,30,.92) 58%,rgba(3,7,18,.98) 100%);
}
.article-hero .container{position:relative;z-index:2;padding-top:42px;padding-bottom:52px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted-2)}
.crumb i{font-size:10px;opacity:.6}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.02em;
  background:rgba(56,189,248,.1);border:1px solid var(--line-strong);color:#bae6fd;
}
.tag.green{background:rgba(52,211,153,.1);border-color:rgba(52,211,153,.38);color:#a7f3d0}
.tag.amber{background:rgba(251,191,36,.1);border-color:rgba(251,191,36,.38);color:#fde68a}
.article-hero h1{font-size:clamp(27px,4vw,46px);max-width:960px;margin-bottom:18px}
.hero-lead{max-width:820px;color:var(--muted-2);font-size:17px;margin-bottom:24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:13.5px;color:var(--muted)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{color:var(--cyan)}

/* ---------- Layout block ---------- */
.section{padding:58px 0;border-bottom:1px solid var(--line)}
.section:nth-of-type(even){background:rgba(8,18,41,.42)}
.section-head{max-width:760px;margin-bottom:30px}
.section-head.left{margin-left:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px)}
.section-head p{color:var(--muted-2);margin:0}

/* ---------- Pull quote ---------- */
.pull-quote{
  margin:0 0 34px;
  padding:26px 28px 26px 26px;
  border-left:3px solid var(--cyan);
  background:linear-gradient(120deg,rgba(13,27,54,.75),rgba(8,18,41,.5));
  border-radius:0 var(--radius) var(--radius) 0;
  box-shadow:var(--shadow-soft);
}
.pull-quote p{margin:0;font-size:19px;font-weight:600;line-height:1.55;color:#e2f2ff}
.pull-quote cite{display:block;margin-top:12px;font-style:normal;font-size:13px;color:var(--muted)}

/* ---------- Key points ---------- */
.point-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.point{
  padding:24px 22px;border-radius:var(--radius);
  background:var(--bg-panel);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-soft);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.point:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.point i{font-size:20px;color:var(--cyan);margin-bottom:14px;display:block}
.point h3{font-size:17px;margin-bottom:8px}
.point p{margin:0;color:var(--muted-2);font-size:14.5px;line-height:1.6}

/* ---------- Article body ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:34px}
.article-content{
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:clamp(22px,3.4vw,44px);
  box-shadow:var(--shadow);
}
.article-content h2{
  font-size:clamp(21px,2.4vw,28px);margin:34px 0 14px;padding-top:8px;
}
.article-content h2:first-child{margin-top:0}
.article-content h3{font-size:19px;margin:26px 0 12px;color:#dbeafe}
.article-content p,.article-content li{color:var(--muted-2);font-size:16px;line-height:1.7}
.article-content strong{color:#e0f2fe}
.article-content ul,.article-content ol{padding-left:22px}
.article-content li{margin-bottom:8px}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(56,189,248,.07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#dbeafe;font-style:italic;
}
.article-content img{border-radius:var(--radius);margin:22px 0;border:1px solid var(--line)}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;overflow:hidden;border-radius:var(--radius-sm)}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;color:var(--muted-2)}
.article-content th{background:rgba(56,189,248,.1);color:#e0f2fe;font-weight:700}
.article-content a{color:var(--cyan-soft);text-decoration:underline;text-decoration-color:rgba(56,189,248,.4)}
.article-content a:hover{color:#e0f2fe}
.empty-box{
  text-align:left;padding:30px;border-radius:var(--radius);
  background:rgba(56,189,248,.06);border:1px dashed var(--line-strong);
}
.empty-box p{color:var(--muted-2);margin-bottom:18px}

/* ---------- Reference table ---------- */
.ref-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--bg-panel)}
.ref-table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
.ref-table th{
  text-align:left;padding:15px 18px;background:rgba(56,189,248,.1);
  color:#e0f2fe;font-weight:700;font-size:13px;letter-spacing:.04em;text-transform:uppercase;
}
.ref-table td{padding:15px 18px;border-top:1px solid var(--line);color:var(--muted-2);vertical-align:top}
.ref-table tr:hover td{background:rgba(56,189,248,.045)}
.ref-table td strong{color:#e0f2fe}

/* ---------- Two column blocks ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.split-media{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;min-height:280px}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:13px;color:#e2f2ff;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.92));
}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{
  position:relative;padding:12px 0 12px 34px;border-bottom:1px dashed rgba(56,189,248,.18);
  color:var(--muted-2);font-size:15.5px;line-height:1.6;
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:13px;width:22px;height:22px;border-radius:7px;
  display:grid;place-items:center;font-size:11px;color:#04101f;
  background:linear-gradient(135deg,#34d399,#38bdf8);
}
.warn-list li::before{
  content:"\f071";background:linear-gradient(135deg,#fbbf24,#fb7185);
}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 22px;border-radius:var(--radius);
  background:var(--bg-panel);border:1px solid var(--line);backdrop-filter:blur(12px);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:22px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.08em;
  background:linear-gradient(135deg,#2563eb,#38bdf8);color:#03101f;
  box-shadow:0 0 18px rgba(56,189,248,.5);
}
.step h3{font-size:16.5px;margin:10px 0 8px}
.step p{margin:0;color:var(--muted-2);font-size:14.5px}

/* ---------- Channel matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.matrix-item{
  display:flex;flex-direction:column;gap:12px;
  padding:24px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(13,27,54,.8),rgba(8,18,41,.55));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.matrix-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.matrix-item h3{font-size:17px;margin:0}
.matrix-item p{margin:0;color:var(--muted-2);font-size:14.5px;flex:1 1 auto}
.matrix-item .mini-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--cyan-soft);
}
.matrix-item .mini-link i{transition:transform .25s ease}
.matrix-item .mini-link:hover i{transform:translateX(4px)}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px}
.stat{
  padding:24px;border-radius:var(--radius);background:var(--bg-panel);
  border:1px solid var(--line);text-align:left;
}
.stat strong{display:block;font-size:30px;line-height:1.15;font-weight:800;
  background:linear-gradient(90deg,#7dd3fc,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--line);background:var(--bg-panel);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--glow)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:#e6f4ff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--cyan);transition:transform .25s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item .faq-body{padding:0 24px 22px;color:var(--muted-2);font-size:15px;line-height:1.7}

/* ---------- CTA ---------- */
.cta-band{
  margin:0;padding:52px 0 62px;
  background:
    radial-gradient(700px 340px at 18% 0%, rgba(37,99,235,.32), transparent 66%),
    radial-gradient(620px 320px at 92% 10%, rgba(56,189,248,.22), transparent 62%),
    rgba(6,14,32,.85);
  border-top:1px solid var(--line);
}
.cta-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-inner p{color:var(--muted-2);margin-bottom:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:18px;
  background:rgba(7,12,26,.82);backdrop-filter:blur(14px);
  color:#bae6fd;font-size:20px;
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.86),rgba(7,12,26,.86)),
    linear-gradient(135deg,#a3e635,#06b6d4);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.8;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab-support:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(6,182,212,.65);color:#e0f2fe}
.fab-support:active{transform:scale(.94)}
.fab-support .fab-dot{
  position:absolute;top:8px;right:8px;width:10px;height:10px;border-radius:50%;
  background:#22d3ee;box-shadow:0 0 10px rgba(34,211,238,.9);
  animation:fabPulse 1.8s infinite;
}
@keyframes fabPulse{0%,100%{opacity:.45;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}

/* ---------- Footer ---------- */
.site-footer{
  padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(4,10,24,.7),rgba(2,5,14,.98));
  border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:15.5px;color:#e6f4ff;margin-bottom:14px}
.foot-brand .brand-mark{width:34px;height:34px;font-size:14px}
.foot-col p{color:var(--muted);font-size:14px;line-height:1.65;margin:0 0 16px}
.foot-col h4{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:#dbeafe;margin-bottom:14px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:10px}
.foot-col a{color:var(--muted);font-size:14.5px}
.foot-col a:hover{color:#bae6fd}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px}
.foot-tags span{
  padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:var(--muted-2);
}
.foot-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.foot-bottom .age{display:inline-flex;align-items:center;gap:8px;color:#fcd34d}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .split{grid-template-columns:1fr;gap:26px}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{padding-left:16px;padding-right:16px}
  .section{padding:44px 0}
  .article-hero .container{padding-top:30px;padding-bottom:40px}
  .hero-lead{font-size:15.5px}
  .brand-text em{font-size:13px}
  .pull-quote{padding:20px}
  .pull-quote p{font-size:17px}
  .btn-glow,.btn-ghost{padding:13px 22px;font-size:14.5px}
}
@media (max-width:520px){
  .nav-inner{min-height:64px;gap:10px}
  .brand-text small{display:none}
  .brand-text em{max-width:44vw}
  .hero-meta{gap:10px 18px;font-size:12.5px}
  .point-grid,.steps,.matrix,.stats{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{justify-content:center}
  .fab-support{width:50px;height:50px;bottom:84px;left:12px}
  .article-content{padding:20px 16px;border-radius:var(--radius)}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:rgba(13,27,54,.58);
  --bg-panel-2:rgba(8,18,41,.82);
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --cyan-soft:#7dd3fc;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --green:#34d399;
  --amber:#fbbf24;
  --rose:#fb7185;
  --radius-xl:26px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 50px -26px rgba(2,10,30,.95);
  --shadow-soft:0 12px 32px -20px rgba(2,10,30,.9);
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-strong:0 0 34px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 500px at 94% 2%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(820px 720px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-soft);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#bae6fd}
button{font-family:inherit}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .6rem;font-weight:800;letter-spacing:-.02em}
p{margin:0 0 1rem}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
/* ---------- Buttons ---------- */
.btn-glow,
.btn-ghost,
.btn-plain{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  color:#03101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 16px 34px -16px rgba(56,189,248,.75);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(125,211,252,.8),0 20px 40px -14px rgba(56,189,248,.85);color:#03101f}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 10px 22px -14px rgba(56,189,248,.8)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);border-color:rgba(125,211,252,.7);transform:translateY(-2px);color:#e0f2fe}
.btn-plain{
  background:transparent;
  border-color:transparent;
  color:var(--cyan-soft);
  padding:12px 16px;
}
.btn-plain:hover{color:#e0f2fe;background:rgba(56,189,248,.08)}
.btn-sm{padding:11px 20px;font-size:14px}
/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(3,7,18,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-stuck{box-shadow:0 18px 40px -28px rgba(0,0,0,.95);background:rgba(3,7,18,.94)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.02em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  color:#04101f;
  font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.45);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand-text em{font-style:normal;background:linear-gradient(90deg,#7dd3fc,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted-2);
  white-space:nowrap;
}
.nav-links a:hover{color:#e0f2fe;background:rgba(56,189,248,.09)}
.nav-links a.active{
  color:#e0f2fe;
  background:rgba(56,189,248,.12);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.34);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2563eb,#38bdf8);
  box-shadow:0 0 10px rgba(56,189,248,.8);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.07);
  color:var(--cyan-soft);
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.nav-burger:hover{background:rgba(56,189,248,.16)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);
  backdrop-filter:blur(16px);
  padding:12px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:13px 20px;
  color:var(--muted-2);
  font-weight:600;
  font-size:15px;
  border-radius:12px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(56,189,248,.1);color:#e0f2fe}
/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.hero-media{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/46bffde4c94d2b62.jpg");
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  filter:saturate(.9);
  z-index:-2;
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.86) 0%,rgba(4,12,30,.9) 55%,rgba(3,7,18,.98) 100%);
}
.hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:46px;
  align-items:center;
  padding:84px 0 66px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  background:rgba(56,189,248,.09);
  border:1px solid var(--line-strong);
  border-radius:999px;
  padding:8px 16px;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(28px,4vw,46px);
  margin-bottom:18px;
}
.hero h1 span{
  background:linear-gradient(100deg,#7dd3fc,#38bdf8 45%,#2563eb);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16.5px;
  color:var(--muted-2);
  max-width:640px;
  line-height:1.7;
}
.hero-points{margin:24px 0 28px;display:grid;gap:11px;max-width:620px}
.hero-points li{
  display:grid;
  grid-template-columns:24px 1fr;
  gap:12px;
  align-items:start;
  font-size:15.5px;
  color:var(--muted-2);
}
.hero-points i{color:var(--cyan);margin-top:5px;font-size:13px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-foot{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:18px;
}
.hero-foot span{display:inline-flex;align-items:center;gap:8px}
.hero-foot i{color:var(--cyan);font-size:12px}
/* hero side panel */
.panel-stack{display:grid;gap:16px}
.panel-card{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
}
.panel-card h3{font-size:15px;margin-bottom:14px;color:#e0f2fe;display:flex;align-items:center;gap:10px}
.panel-card h3 i{color:var(--cyan)}
.panel-rows{display:grid;gap:12px}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-bottom:12px;border-bottom:1px dashed rgba(148,163,184,.22);
  font-size:14px;color:var(--muted-2);
}
.panel-row:last-child{border-bottom:0;padding-bottom:0}
.panel-row b{color:#e0f2fe;font-size:14.5px}
.panel-row .tagline{font-size:12px;color:var(--muted)}
.panel-highlight{
  background:linear-gradient(140deg,rgba(37,99,235,.28),rgba(56,189,248,.12));
  border-color:rgba(56,189,248,.4);
}
.panel-highlight .big{font-size:32px;font-weight:800;line-height:1.1;color:#e0f2fe}
.panel-highlight p{margin:8px 0 0;font-size:13.5px;color:var(--muted-2)}
/* ---------- Sections ---------- */
.section{padding:78px 0;position:relative;border-bottom:1px solid rgba(56,189,248,.08)}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.62) 0%,rgba(3,7,18,0) 100%)}
.section:last-of-type{border-bottom:0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.7vw,32px);margin-bottom:12px}
.section-head p{color:var(--muted-2);font-size:15.5px;line-height:1.7;margin:0}
.section-head .eyebrow{margin-bottom:16px}
.glass{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
}
/* feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.feature-card{
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--bg-panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px -22px rgba(56,189,248,.6)}
.feature-card.span-2{grid-column:span 2}
.feature-card h3{font-size:18px;margin:16px 0 10px}
.feature-card p{color:var(--muted-2);font-size:14.6px;margin:0;line-height:1.7}
.feature-card .card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.85),rgba(56,189,248,.7));
  color:#04101f;font-size:18px;box-shadow:0 0 20px rgba(56,189,248,.35);
}
/* split */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center}
.split.reverse .split-media{order:2}
.split-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:12.5px;color:#dbeafe;
  background:linear-gradient(0deg,rgba(3,7,18,.94),rgba(3,7,18,0));
}
.type-list{display:grid;gap:16px;margin-top:22px}
.type-item{
  padding:20px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(8,18,41,.5);
  border-left:3px solid var(--cyan);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.type-item:hover{background:rgba(13,27,54,.7);border-left-color:#7dd3fc;transform:translateX(3px)}
.type-item h3{font-size:16.5px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.type-item h3 .badge-dot{
  font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:#081229;background:linear-gradient(135deg,#38bdf8,#7dd3fc);
  padding:4px 10px;border-radius:999px;
}
.type-item p{margin:0;color:var(--muted-2);font-size:14.4px}
/* signals */
.signal-list{display:grid;gap:14px}
.signal-row{
  display:grid;
  grid-template-columns:52px 1fr;
  gap:18px;
  align-items:start;
  padding:22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(100deg,rgba(13,27,54,.72),rgba(8,18,41,.5));
  transition:border-color .25s ease,box-shadow .25s ease;
}
.signal-row:hover{border-color:var(--line-strong);box-shadow:0 16px 36px -24px rgba(56,189,248,.7)}
.signal-num{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#04101f;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:0 0 18px rgba(56,189,248,.4);
}
.signal-row h3{font-size:16.5px;margin-bottom:6px}
.signal-row p{margin:0;color:var(--muted-2);font-size:14.4px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.step{
  display:grid;
  grid-template-columns:54px 1fr;
  gap:16px;
  align-items:start;
  padding:22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(8,18,41,.56);
  backdrop-filter:blur(12px);
  transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.step:last-child{grid-column:span 2}
.step-num{
  font-size:20px;font-weight:800;
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  color:var(--cyan);
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-strong);
}
.step h3{font-size:16.5px;margin-bottom:6px}
.step p{margin:0;color:var(--muted-2);font-size:14.4px}
/* compare */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-col{
  padding:26px 26px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--bg-panel);
  backdrop-filter:blur(14px);
}
.compare-col.do{border-color:rgba(52,211,153,.34)}
.compare-col.dont{border-color:rgba(251,113,133,.32)}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:16px}
.compare-col.do h3 i{color:var(--green)}
.compare-col.dont h3 i{color:var(--rose)}
.compare-col li{
  display:grid;grid-template-columns:20px 1fr;gap:12px;
  align-items:start;
  font-size:14.5px;color:var(--muted-2);
  padding:11px 0;border-bottom:1px dashed rgba(148,163,184,.2);
}
.compare-col li:last-child{border-bottom:0;padding-bottom:0}
.compare-col.do li i{color:var(--green);margin-top:5px;font-size:11px}
.compare-col.dont li i{color:var(--rose);margin-top:5px;font-size:11px}
/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(13,27,54,.75),rgba(8,18,41,.55));
  transition:border-color .25s ease,transform .25s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.stat-num{font-size:30px;font-weight:800;line-height:1.1;background:linear-gradient(120deg,#7dd3fc,#2563eb);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-card h3{font-size:14.5px;margin:10px 0 6px;color:#e0f2fe}
.stat-card p{margin:0;font-size:13.4px;color:var(--muted)}
/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card{
  display:flex;flex-direction:column;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--bg-panel);
  backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 20px 44px -26px rgba(56,189,248,.75)}
.news-card h3{font-size:16.5px;margin-bottom:10px}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--cyan-soft)}
.news-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.news-meta span{
  font-size:11.5px;font-weight:600;letter-spacing:.04em;
  color:var(--cyan-soft);background:rgba(56,189,248,.1);
  border:1px solid var(--line);border-radius:999px;padding:4px 10px;
}
.news-card p{margin:0;font-size:14.2px;color:var(--muted-2)}
.news-empty{
  padding:26px;border-radius:var(--radius);
  border:1px dashed var(--line-strong);
  color:var(--muted-2);font-size:14.5px;background:rgba(8,18,41,.4);
}
/* FAQ */
.faq-list{display:grid;gap:14px;max-width:960px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-panel);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(13,27,54,.72)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-weight:700;
  font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  color:#e2e8f0;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--cyan);
  transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--muted-2);font-size:14.6px}
.faq-item .faq-body p:last-child{margin-bottom:0}
/* CTA band */
.cta-band{
  position:relative;
  border-radius:var(--radius-xl);
  border:1px solid rgba(56,189,248,.36);
  background:
    radial-gradient(560px 300px at 12% 0%, rgba(37,99,235,.35), transparent 65%),
    radial-gradient(520px 280px at 92% 100%, rgba(56,189,248,.26), transparent 62%),
    rgba(8,18,41,.85);
  padding:46px 44px;
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:34px;
  align-items:center;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-band h2{font-size:clamp(21px,2.5vw,29px);margin-bottom:12px}
.cta-band p{color:var(--muted-2);font-size:15px;margin:0;line-height:1.7}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-glow,.cta-actions .btn-ghost{justify-content:center}
/* FAB */
.fab{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:50;
  width:58px;height:58px;
  border-radius:20px;
  display:grid;place-items:center;
  color:#e0f2fe;
  font-size:20px;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,#38bdf8,#2563eb);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  opacity:.82;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(56,189,248,.7);color:#fff}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .fab-dot{
  position:absolute;top:8px;right:9px;
  width:9px;height:9px;border-radius:50%;
  background:#f43f5e;
  box-shadow:0 0 0 2px rgba(3,7,18,.9),0 0 10px rgba(244,63,94,.9);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.65}}
/* Footer */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(4,10,24,.6),rgba(3,7,18,.98));
  padding:62px 0 30px;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.foot-col h4{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:#e0f2fe;margin-bottom:16px}
.foot-col p{color:var(--muted);font-size:14px;line-height:1.7}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;margin-bottom:14px;color:var(--text)}
.foot-brand .brand-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));color:#04101f;font-size:15px}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.foot-tags span{
  font-size:11.5px;font-weight:600;color:var(--muted-2);
  border:1px solid var(--line);border-radius:999px;
  padding:5px 11px;background:rgba(56,189,248,.05);
}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a{color:var(--muted);font-size:14px}
.foot-col ul a:hover{color:var(--cyan-soft)}
.foot-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:13px;
}
.foot-bottom .age{display:inline-flex;align-items:center;gap:8px;color:var(--amber)}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:62px 0 52px}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-card.span-2{grid-column:span 2}
  .split{grid-template-columns:1fr;gap:30px}
  .split.reverse .split-media{order:0}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:38px 30px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.span-2{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .step:last-child{grid-column:span 1}
  .compare-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .hero h1{font-size:27px}
  .brand-text em{font-size:14px}
  .brand-text small{font-size:9.5px}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .hero-inner{padding:48px 0 42px}
  .hero-actions{gap:10px}
  .btn-glow,.btn-ghost{padding:13px 22px;font-size:14px;width:100%;justify-content:center}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .signal-row{grid-template-columns:1fr;gap:12px}
  .step{grid-template-columns:1fr;gap:12px}
  .cta-band{padding:30px 20px}
  .cta-actions{flex-direction:column}
  .fab{width:54px;height:54px;bottom:88px;left:14px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:rgba(13,27,54,.58);
  --bg-panel-2:rgba(8,18,41,.82);
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --cyan-soft:#7dd3fc;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --green:#34d399;
  --amber:#fbbf24;
  --rose:#fb7185;
  --radius-xl:26px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 50px -26px rgba(2,10,30,.95);
  --shadow-soft:0 12px 32px -20px rgba(2,10,30,.9);
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-strong:0 0 34px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 500px at 94% 2%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(820px 720px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-soft);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#bae6fd}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0 0 .6rem;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--text)}
p{margin:0 0 1rem}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- Buttons ---------- */
.btn-glow,.btn-ghost,.btn-plain{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  color:#03101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 16px 34px -16px rgba(56,189,248,.75);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(125,211,252,.8),0 20px 40px -14px rgba(56,189,248,.85);color:#03101f}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 10px 22px -14px rgba(56,189,248,.8)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);border-color:rgba(125,211,252,.7);transform:translateY(-2px);color:#e0f2fe}
.btn-plain{background:transparent;border-color:transparent;color:var(--cyan-soft);padding:12px 16px}
.btn-plain:hover{color:#e0f2fe;background:rgba(56,189,248,.08)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-glow:focus-visible,.btn-ghost:focus-visible,.btn-plain:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(3,7,18,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-stuck{box-shadow:0 18px 40px -28px rgba(0,0,0,.95);background:rgba(3,7,18,.94)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.02em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  color:#04101f;
  font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.45);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand-text em{font-style:normal;background:linear-gradient(90deg,#7dd3fc,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted-2);
  white-space:nowrap;
}
.nav-links a:hover{color:#e0f2fe;background:rgba(56,189,248,.09)}
.nav-links a.active{
  color:#e0f2fe;
  background:rgba(56,189,248,.12);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.34);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2563eb,#38bdf8);
  box-shadow:0 0 10px rgba(56,189,248,.8);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.07);
  color:var(--cyan-soft);
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.nav-burger:hover{background:rgba(56,189,248,.16)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);
  backdrop-filter:blur(16px);
  padding:12px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:13px 20px;
  color:var(--muted-2);
  font-weight:600;
  font-size:15px;
  border-radius:12px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(56,189,248,.1);color:#e0f2fe}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.hero-media{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/26742138287dea3a.jpg');
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  filter:saturate(.9);
  z-index:-2;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.86) 0%,rgba(4,12,30,.9) 55%,rgba(3,7,18,.98) 100%);
}
.hero-inner{
  position:relative;
  z-index:1;
  padding:86px 0 62px;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  background:rgba(56,189,248,.09);
  border:1px solid var(--line-strong);
  border-radius:999px;
  padding:8px 16px;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;
  margin-bottom:18px;
}
.hero h1 span{
  background:linear-gradient(120deg,#7dd3fc,#38bdf8 55%,#2563eb);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:17px;
  color:var(--muted-2);
  max-width:640px;
  margin-bottom:24px;
}
.hero-points{display:grid;gap:12px;margin-bottom:30px;max-width:640px}
.hero-points li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15.5px;
  color:var(--muted-2);
  padding:12px 16px;
  border-radius:14px;
  background:rgba(9,20,42,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.hero-points i{color:var(--cyan);margin-top:3px;font-size:15px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-side{
  display:grid;
  gap:14px;
  align-content:center;
}
.hero-panel{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:24px;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-panel h3{font-size:15px;color:var(--cyan-soft);letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px}
.hero-metrics{display:grid;gap:14px}
.hero-metric{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:13px 0;
  border-bottom:1px dashed rgba(148,163,184,.22);
}
.hero-metric:last-child{border-bottom:0;padding-bottom:0}
.hero-metric span{font-size:13.5px;color:var(--muted)}
.hero-metric strong{font-size:19px;color:#e0f2fe;letter-spacing:-.02em}
.trust-strip{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  background:rgba(3,9,22,.72);
  backdrop-filter:blur(12px);
}
.trust-inner{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  align-items:center;
  padding:16px 0;
  font-size:13.5px;
  color:var(--muted);
}
.trust-inner span{display:inline-flex;align-items:center;gap:9px}
.trust-inner i{color:var(--cyan)}

/* ---------- Sections ---------- */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head.left{margin-left:0}
.sec-title{font-size:clamp(23px,2.7vw,34px);margin-bottom:14px}
.sec-lead{color:var(--muted-2);font-size:16px;margin:0}
.label-inline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  margin-bottom:14px;
}

/* ---------- Split layouts ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.split.reverse{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr)}
.prose p{color:var(--muted-2);font-size:16px}
.prose strong{color:#e0f2fe}
.figure{
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-panel-2);
}
.figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.figure figcaption{padding:14px 18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}

/* ---------- Stat cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.stat-card{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  backdrop-filter:blur(12px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.stat-value{
  font-size:30px;
  font-weight:800;
  letter-spacing:-.03em;
  color:#e0f2fe;
  line-height:1.1;
  margin-bottom:8px;
}
.stat-value em{font-style:normal;font-size:15px;color:var(--cyan);font-weight:700;margin-left:4px}
.stat-label{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan-soft);margin-bottom:10px}
.stat-card p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- Steps ---------- */
.steps{display:grid;gap:16px;counter-reset:step}
.step-item{
  display:grid;
  grid-template-columns:62px minmax(0,1fr);
  gap:20px;
  align-items:start;
  background:linear-gradient(120deg,rgba(13,27,54,.62),rgba(8,18,41,.42));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  transition:border-color .25s ease,transform .25s ease;
}
.step-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.step-num{
  font-size:24px;
  font-weight:800;
  color:transparent;
  background:linear-gradient(135deg,#7dd3fc,#2563eb);
  -webkit-background-clip:text;
  background-clip:text;
  line-height:1;
  padding-top:4px;
}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{font-size:14.8px;color:var(--muted-2);margin:0}

/* ---------- Scenario cards ---------- */
.scenario-card{
  position:relative;
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:28px 26px;
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scenario-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,#38bdf8,transparent);
  opacity:.7;
}
.scenario-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow-strong)}
.scenario-card h3{font-size:16px;letter-spacing:.03em;text-transform:uppercase;color:var(--cyan-soft);margin-bottom:6px}
.scenario-amount{font-size:31px;font-weight:800;letter-spacing:-.03em;color:#fff;margin-bottom:16px}
.scenario-list{display:grid;gap:10px;margin:0}
.scenario-list li{display:flex;justify-content:space-between;gap:14px;font-size:14.5px;color:var(--muted-2);border-bottom:1px dashed rgba(148,163,184,.18);padding-bottom:9px}
.scenario-list li:last-child{border-bottom:0;padding-bottom:0}
.scenario-list b{color:#e0f2fe;font-weight:700}

/* ---------- Risk list ---------- */
.risk-list{display:grid;gap:16px}
.risk-item{
  border:1px solid var(--line);
  border-left:3px solid var(--rose);
  border-radius:var(--radius-sm);
  background:rgba(9,20,42,.55);
  padding:18px 20px;
}
.risk-item.warn{border-left-color:var(--amber)}
.risk-item.calm{border-left-color:var(--green)}
.risk-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
.risk-item h3{font-size:16px;margin:0}
.risk-item p{font-size:14.5px;color:var(--muted);margin:0}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  padding:5px 11px;
  border-radius:999px;
  border:1px solid currentColor;
}
.badge.rose{color:var(--rose)}
.badge.amber{color:var(--amber)}
.badge.green{color:var(--green)}
.badge.cyan{color:var(--cyan)}

/* ---------- Checklist ---------- */
.checklist{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:26px 24px;
  backdrop-filter:blur(12px);
}
.checklist h3{font-size:17px;margin-bottom:16px}
.checklist li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.8px;
  color:var(--muted-2);
  padding:11px 0;
  border-bottom:1px dashed rgba(148,163,184,.18);
}
.checklist li:last-child{border-bottom:0}
.checklist i{color:var(--cyan);margin-top:4px}

/* ---------- Hub ---------- */
.hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.hub-card{
  display:block;
  background:linear-gradient(150deg,rgba(13,27,54,.7),rgba(8,18,41,.5));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  color:var(--text);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.hub-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow);color:var(--text)}
.hub-card i.hub-ico{
  width:44px;height:44px;
  border-radius:13px;
  display:grid;place-items:center;
  background:rgba(56,189,248,.12);
  border:1px solid var(--line-strong);
  color:var(--cyan);
  font-size:17px;
  margin-bottom:16px;
}
.hub-card h3{font-size:17px;margin-bottom:9px}
.hub-card p{font-size:14.5px;color:var(--muted);margin:0}
.hub-card .hub-more{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--cyan-soft)}
.hub-card.is-current{border-color:var(--line-strong);box-shadow:inset 0 0 0 1px rgba(56,189,248,.28)}

/* ---------- Posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:rgba(3,7,18,.6)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.06)}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-cat{
  font-size:11px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--cyan);
}
.post-body h3{font-size:16.5px;margin:0;line-height:1.4}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:var(--cyan-soft)}
.post-body p{font-size:14.2px;color:var(--muted);margin:0}
.post-date{font-size:12.5px;color:var(--muted);margin-top:auto;display:inline-flex;align-items:center;gap:7px}
.list-empty{
  grid-column:1/-1;
  text-align:left;
  color:var(--muted);
  font-size:15px;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  padding:26px 24px;
  background:rgba(9,20,42,.4);
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:14px;max-width:920px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(9,20,42,.55);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(13,27,54,.6)}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:20px 56px 20px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  color:var(--cyan);
  font-size:13px;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"\f068";transform:translateY(-50%) rotate(180deg)}
.faq-item summary:hover{color:var(--cyan-soft)}
.faq-answer{padding:0 22px 22px;font-size:15px;color:var(--muted-2);line-height:1.7}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-xl);
  padding:48px 44px;
  background:linear-gradient(130deg,rgba(37,99,235,.28),rgba(56,189,248,.14) 55%,rgba(8,18,41,.85));
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
  gap:34px;
  align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-band p{color:var(--muted-2);font-size:16px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:70px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(4,10,24,.85),rgba(3,7,18,.98));
  padding:56px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;color:var(--text);margin-bottom:14px}
.foot-col p{font-size:14.2px;color:var(--muted);max-width:420px}
.foot-col h4{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan-soft);margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{font-size:14.2px;color:var(--muted-2)}
.foot-col ul a:hover{color:#e0f2fe}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.foot-tags span{
  font-size:12px;
  color:var(--muted-2);
  border:1px solid var(--line);
  background:rgba(56,189,248,.06);
  border-radius:999px;
  padding:5px 12px;
}
.foot-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.foot-bottom .age{display:inline-flex;align-items:center;gap:8px;color:var(--amber)}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:1050;
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:56px;
  padding:13px 20px;
  border-radius:999px;
  background:rgba(7,7,13,.8);
  backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)),linear-gradient(135deg,#38bdf8,#2563eb,#22d3ee);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:#e0f2fe;
  font-size:13.5px;
  font-weight:700;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;
  transition:opacity .25s ease,transform .25s ease,box-shadow .3s ease;
}
.fab-support i{color:var(--cyan);font-size:16px}
.fab-support:hover{opacity:1;transform:translateY(-3px) scale(1.03);color:#fff;box-shadow:0 0 30px rgba(56,189,248,.65)}
.fab-support:active{transform:translateY(0) scale(.97)}
.fab-dot{
  position:absolute;
  top:6px;right:10px;
  width:9px;height:9px;
  border-radius:50%;
  background:#22d3ee;
  box-shadow:0 0 12px rgba(34,211,238,.95);
  animation:pulseDot 1.8s infinite;
}
@keyframes pulseDot{
  0%,100%{transform:scale(.85);opacity:.7}
  50%{transform:scale(1.25);opacity:1}
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;padding:64px 0 52px;gap:36px}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.hub-grid,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:38px 30px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:56px 0}
  .grid-4,.grid-3,.grid-2,.hub-grid,.post-grid{grid-template-columns:1fr}
  .hero h1{font-size:29px}
  .hero-lead{font-size:15.5px}
  .step-item{grid-template-columns:1fr;gap:10px;padding:20px}
  .nav-actions .btn-plain{padding:10px 12px;font-size:13.5px}
  .nav-actions .btn-glow{padding:10px 16px;font-size:13.5px}
  .cta-band{padding:30px 22px}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text small{display:none}
  .brand-text{font-size:14px}
  .nav-actions{gap:6px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .fab-support{padding:12px 16px;font-size:12.5px;left:12px;bottom:88px}
  .fab-support .fab-txt{display:none}
  .stat-value{font-size:26px}
  .scenario-amount{font-size:27px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-soft:#081229;
  --bg-panel:rgba(13,27,54,.58);
  --bg-panel-2:rgba(8,18,41,.82);
  --line:rgba(56,189,248,.16);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --blue-deep:#1d4ed8;
  --cyan:#38bdf8;
  --cyan-soft:#7dd3fc;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#cbd5e1;
  --green:#34d399;
  --amber:#fbbf24;
  --rose:#fb7185;
  --radius-xl:26px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 50px -26px rgba(2,10,30,.95);
  --shadow-soft:0 12px 32px -20px rgba(2,10,30,.9);
  --glow:0 0 26px rgba(56,189,248,.35);
  --glow-strong:0 0 34px rgba(56,189,248,.55);
  --container:1200px;
  --font:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:transparent;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 500px at 94% 2%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(820px 720px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan-soft);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#bae6fd}
button{font-family:inherit}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- Buttons ---------- */
.btn-glow,
.btn-ghost,
.btn-plain{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  color:#03101f;
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 16px 34px -16px rgba(56,189,248,.75);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(125,211,252,.8),0 20px 40px -14px rgba(56,189,248,.85);color:#03101f}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(56,189,248,.6),0 10px 22px -14px rgba(56,189,248,.8)}
.btn-ghost{
  background:rgba(56,189,248,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(56,189,248,.14);border-color:rgba(125,211,252,.7);transform:translateY(-2px);color:#e0f2fe}
.btn-plain{
  background:transparent;
  border-color:transparent;
  color:var(--cyan-soft);
  padding:12px 16px;
}
.btn-plain:hover{color:#e0f2fe;background:rgba(56,189,248,.08)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(3,7,18,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-stuck{box-shadow:0 18px 40px -28px rgba(0,0,0,.95);background:rgba(3,7,18,.94)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.02em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  color:#04101f;
  font-size:16px;
  box-shadow:0 0 18px rgba(56,189,248,.45);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand-text em{font-style:normal;background:linear-gradient(90deg,#7dd3fc,#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted-2);
  white-space:nowrap;
}
.nav-links a:hover{color:#e0f2fe;background:rgba(56,189,248,.09)}
.nav-links a.active{
  color:#e0f2fe;
  background:rgba(56,189,248,.12);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.34);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2563eb,#38bdf8);
  box-shadow:0 0 10px rgba(56,189,248,.8);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.07);
  color:var(--cyan-soft);
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.nav-burger:hover{background:rgba(56,189,248,.16)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(4,10,24,.97);
  backdrop-filter:blur(16px);
  padding:12px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:13px 20px;
  color:var(--muted-2);
  font-weight:600;
  font-size:15px;
  border-radius:12px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(56,189,248,.1);color:#e0f2fe}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.hero-media{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  filter:saturate(.9);
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(3,7,18,.86) 0%,rgba(4,12,30,.92) 55%,rgba(3,7,18,.99) 100%),
    linear-gradient(90deg,rgba(3,7,18,.94) 0%,rgba(3,7,18,.45) 60%,rgba(3,7,18,.85) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:64px 0 72px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:8px 16px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:#bfefff;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-strong);
  box-shadow:var(--glow);
}
.hero h1{
  font-size:clamp(28px,4vw,46px);
  margin:22px 0 18px;
  background:linear-gradient(120deg,#ffffff 0%,#dbeafe 45%,#7dd3fc 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--muted-2);
  max-width:620px;
  line-height:1.7;
}
.hero-points{margin:24px 0 30px;display:grid;gap:12px;max-width:640px}
.hero-points li{
  display:flex;
  align-items:flex-start;
  gap:11px;
  font-size:15px;
  color:var(--muted-2);
}
.hero-points li i{color:var(--cyan);margin-top:4px;font-size:14px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-panel{
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:26px 24px;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.hero-panel h3{
  font-size:15px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  margin-bottom:18px;
}
.panel-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:13px 0;
  border-bottom:1px dashed rgba(148,163,184,.22);
}
.panel-row:last-of-type{border-bottom:0}
.panel-row span{font-size:14px;color:var(--muted)}
.panel-row strong{font-size:16px;color:#e0f2fe;font-weight:800}
.panel-note{
  margin-top:18px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  background:rgba(52,211,153,.08);
  border:1px solid rgba(52,211,153,.28);
  font-size:13.5px;
  color:#bbf7d0;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.panel-note i{margin-top:3px}

/* ---------- Sections ---------- */
section{position:relative}
.section{padding:72px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.55) 0%,rgba(3,7,18,.2) 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:12px;
}
.sec-head h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:14px;
}
.sec-head p{color:var(--muted);font-size:16px}
.text-cyan{color:var(--cyan-soft)}

/* ---------- Pain cards ---------- */
.pain-list{display:grid;gap:16px}
.pain-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--radius);
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  border-left:3px solid var(--rose);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pain-item:hover{transform:translateX(4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.pain-item .ico{
  width:42px;height:42px;flex:0 0 auto;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(251,113,133,.12);
  color:var(--rose);
  font-size:16px;
}
.pain-item h3{font-size:16.5px;margin-bottom:6px}
.pain-item p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- Solution cards ---------- */
.sol-card{
  height:100%;
  padding:28px 24px;
  border-radius:var(--radius-xl);
  background:var(--bg-panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.sol-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  opacity:.6;
}
.sol-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 26px 50px -28px rgba(56,189,248,.6)}
.sol-card .ico{
  width:50px;height:50px;
  border-radius:14px;
  display:grid;place-items:center;
  font-size:19px;
  background:linear-gradient(135deg,rgba(37,99,235,.85),rgba(56,189,248,.75));
  color:#03101f;
  margin-bottom:18px;
  box-shadow:0 0 22px rgba(56,189,248,.35);
}
.sol-card h3{font-size:18px;margin-bottom:10px}
.sol-card p{font-size:14.5px;color:var(--muted);margin:0}
.sol-card .tagline{
  display:inline-block;
  margin-top:16px;
  font-size:12.5px;
  font-weight:700;
  color:var(--cyan-soft);
  padding:6px 12px;
  border-radius:999px;
  background:rgba(56,189,248,.1);
  border:1px solid var(--line);
}

/* ---------- Steps ---------- */
.steps{display:grid;gap:0;counter-reset:st}
.step{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:22px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0}
.step .num{
  width:54px;height:54px;
  border-radius:16px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:18px;
  color:#03101f;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
  box-shadow:0 0 22px rgba(56,189,248,.4);
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.8px;color:var(--muted);margin:0}
.step ul{margin-top:12px;display:grid;gap:8px}
.step ul li{
  font-size:14px;
  color:var(--muted-2);
  padding-left:20px;
  position:relative;
}
.step ul li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(56,189,248,.8);
}

/* ---------- Compare table ---------- */
.compare-wrap{
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:var(--bg-panel);
  backdrop-filter:blur(14px);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.compare-table{width:100%;border-collapse:collapse}
.compare-table th,
.compare-table td{
  padding:16px 20px;
  text-align:left;
  font-size:14.5px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.compare-table thead th{
  font-size:12.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  background:rgba(56,189,248,.08);
  font-weight:700;
}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover{background:rgba(56,189,248,.05)}
.compare-table td:first-child{color:var(--muted-2);font-weight:600;width:26%}
.col-new{color:var(--rose)}
.col-pro{color:#a7f3d0}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
  padding:26px 22px;
  border-radius:var(--radius);
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  text-align:left;
  transition:transform .25s ease,border-color .25s ease;
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.stat .n{
  font-size:32px;
  font-weight:800;
  line-height:1;
  background:linear-gradient(120deg,#7dd3fc,#2563eb);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:10px;
  display:block;
}
.stat .l{font-size:14px;color:var(--muted);line-height:1.5}

/* ---------- Testimonials ---------- */
.quote{
  height:100%;
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--bg-panel);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .25s ease,border-color .25s ease;
}
.quote:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.quote .stars{color:var(--amber);font-size:13px;letter-spacing:2px}
.quote p{font-size:14.8px;color:var(--muted-2);font-style:italic;margin:0}
.quote .who{
  display:flex;
  align-items:center;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
  margin-top:auto;
}
.quote .who img{
  width:44px;height:44px;
  border-radius:50%;
  object-fit:cover;
  border:1px solid var(--line-strong);
}
.quote .who strong{display:block;font-size:14.5px;color:var(--text)}
.quote .who span{font-size:12.5px;color:var(--muted)}

/* ---------- Audience ---------- */
.aud-card{
  display:flex;
  gap:16px;
  padding:22px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(13,27,54,.7),rgba(8,18,41,.5));
  border:1px solid var(--line);
  height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.aud-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft)}
.aud-card .ico{
  width:46px;height:46px;flex:0 0 auto;
  border-radius:13px;
  display:grid;place-items:center;
  font-size:17px;
  background:rgba(56,189,248,.12);
  color:var(--cyan);
}
.aud-card h3{font-size:16.5px;margin-bottom:7px}
.aud-card p{font-size:14.2px;color:var(--muted);margin:0}

/* ---------- Posts ---------- */
.post-card{
  height:100%;
  padding:24px 22px;
  border-radius:var(--radius);
  background:var(--bg-panel-2);
  border:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 24px 46px -28px rgba(56,189,248,.6)}
.post-card h3{font-size:16.5px;line-height:1.45}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--cyan-soft)}
.post-card p{font-size:14.2px;color:var(--muted);margin:0;flex:1 1 auto}
.post-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.post-meta .cat{color:var(--cyan-soft);font-weight:700}
.empty-note{
  padding:30px;
  text-align:center;
  color:var(--muted);
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  background:rgba(56,189,248,.04);
}
.more-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid var(--line-strong);
  background:
    linear-gradient(135deg,rgba(37,99,235,.28),rgba(8,18,41,.9) 55%,rgba(56,189,248,.18));
  padding:48px 40px;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-band p{color:var(--muted-2);max-width:620px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:1050;
  width:56px;height:56px;
  border-radius:999px;
  display:grid;
  place-items:center;
  font-size:19px;
  color:#e0f2fe;
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,10,24,.92),rgba(7,10,24,.92)),linear-gradient(135deg,#38bdf8,#2563eb);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  animation:fabBreath 3.4s ease-in-out infinite;
}
.fab-support:hover{
  opacity:1;
  transform:scale(1.1);
  box-shadow:0 0 30px rgba(6,182,212,.72);
  color:#e0f2fe;
}
.fab-support:hover i{animation:fabSpin .6s ease}
.fab-support:active{transform:scale(.95)}
.fab-support .fab-dot{
  position:absolute;
  top:6px;right:6px;
  width:10px;height:10px;
  border-radius:50%;
  background:#f43f5e;
  box-shadow:0 0 0 2px rgba(7,10,24,.95);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabBreath{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes fabSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:80px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,18,41,.6),rgba(3,7,18,.97));
  padding-top:56px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;margin-bottom:16px}
.foot-brand .brand-mark{width:36px;height:36px;font-size:15px}
.foot-col p{font-size:14px;color:var(--muted);line-height:1.7}
.foot-col h4{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan-soft);margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col ul a{font-size:14px;color:var(--muted-2)}
.foot-col ul a:hover{color:#e0f2fe}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.foot-tags span{
  font-size:12px;
  font-weight:600;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(56,189,248,.09);
  border:1px solid var(--line);
  color:var(--muted-2);
}
.foot-bottom{
  margin-top:44px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.foot-bottom .age{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(251,191,36,.1);
  border:1px solid rgba(251,191,36,.32);
  color:#fde68a;
  font-weight:600;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hero-inner{padding:52px 0 58px}
  .cta-band{padding:38px 28px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .step{grid-template-columns:48px 1fr;gap:16px}
  .step .num{width:46px;height:46px;font-size:16px;border-radius:13px}
  .compare-table th,.compare-table td{padding:13px 14px;font-size:13.5px}
  .compare-table td:first-child{width:34%}
  .btn-glow,.btn-ghost{width:100%;justify-content:center}
  .hero-actions{flex-direction:column;align-items:stretch}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .container{padding-left:16px;padding-right:16px}
  .hero h1{font-size:26px}
  .stat-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .brand-text small{display:none}
  .brand-text em{font-size:14px}
  .nav-actions .btn-plain{display:none}
  .fab-support{bottom:86px;left:12px}
  .hero-panel{padding:20px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}