/* roulang page: index */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,28,58,.62);
  --glass-strong:rgba(9,20,44,.88);
  --line:rgba(56,189,248,.20);
  --line-soft:rgba(148,163,184,.14);
  --accent:#2563eb;
  --accent-2:#38bdf8;
  --accent-3:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#34d399;
  --warn:#fbbf24;
  --r-s:10px;
  --r:16px;
  --r-l:24px;
  --sh-s:0 4px 18px rgba(2,8,23,.5);
  --sh:0 16px 44px rgba(2,8,23,.62);
  --glow:0 0 22px rgba(56,189,248,.32);
  --sec:clamp(54px,7vw,100px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -6%,rgba(37,99,235,.20),transparent 60%),
    radial-gradient(900px 520px at 96% 4%,rgba(56,189,248,.14),transparent 62%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-3);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent-2)}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.24;letter-spacing:-.012em;color:var(--text)}
h1{font-size:clamp(1.7rem,3.5vw,2.9rem)}
h2{font-size:clamp(1.35rem,2.4vw,2.05rem)}
h3{font-size:clamp(1.05rem,1.5vw,1.28rem)}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.15rem}
li{margin-bottom:.45em}
button,input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}
.grid-container{max-width:1260px;padding-left:20px;padding-right:20px}
.grid-margin-x{margin-left:-11px;margin-right:-11px}
.grid-margin-x>.cell{width:calc(100% - 22px);margin-left:11px;margin-right:11px}
@media print{body{background:#fff;color:#000}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);
  color:#02101f;font-size:.95rem;
  box-shadow:0 0 18px rgba(56,189,248,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:.9rem;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(56,189,248,.09)}
.main-nav a.active{color:#05121f;background:linear-gradient(135deg,#38bdf8,#2563eb);font-weight:700;box-shadow:var(--glow)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(12,26,52,.7);color:var(--text);font-size:1.05rem;cursor:pointer;
}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(5,12,28,.97)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;border-bottom:1px solid rgba(148,163,184,.08);color:var(--muted);font-weight:500}
.mobile-nav a.active{color:var(--accent-2);background:rgba(56,189,248,.08)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,#38bdf8,#2563eb 62%,#1d4ed8);
  color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover,.btn-primary:focus{
  color:#04121f;transform:translateY(-2px);
  box-shadow:0 0 32px rgba(56,189,248,.62),0 10px 26px rgba(2,8,23,.55);
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(56,189,248,.42);color:var(--accent-2)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(56,189,248,.12);color:#eaf6ff;transform:translateY(-2px)}
.btn-outline{background:rgba(13,28,58,.6);border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--accent-2);color:#eaf6ff;transform:translateY(-2px)}
.btn-lg{padding:14px 26px;font-size:.98rem}
.btn-block{width:100%}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.42;z-index:-2;transform:scale(1.03);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(104deg,rgba(3,7,18,.96) 0%,rgba(5,14,36,.86) 46%,rgba(8,18,41,.62) 100%);
}
.hero-inner{padding:clamp(52px,7vw,96px) 0 clamp(38px,5vw,58px);max-width:860px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700;
  margin-bottom:20px;
}
.hero h1{margin-bottom:20px;text-shadow:0 6px 30px rgba(2,8,23,.75)}
.hero-lead{font-size:clamp(.98rem,1.35vw,1.09rem);color:#cbd5e1;max-width:760px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:.79rem;font-weight:600;
  background:rgba(13,28,58,.66);border:1px solid var(--line-soft);color:#cbd5e1;
}
.chip i{color:var(--accent-2);font-size:.75rem}
.countdown-bar{
  border-top:1px solid var(--line);
  background:linear-gradient(90deg,rgba(9,20,44,.94),rgba(11,26,58,.78));
  backdrop-filter:blur(10px);
}
.countdown-wrap{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding:16px 0;
}
.countdown-label{display:flex;align-items:center;gap:10px;font-size:.87rem;color:#cbd5e1;font-weight:600}
.countdown-label i{color:var(--warn)}
.countdown-nums{display:flex;gap:9px;margin-left:auto}
.cd-box{
  min-width:58px;text-align:center;padding:7px 9px;border-radius:var(--r-s);
  background:rgba(3,9,25,.8);border:1px solid var(--line);
}
.cd-box b{display:block;font-size:1.16rem;font-weight:800;color:var(--accent-2);line-height:1.1}
.cd-box span{font-size:.63rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}

/* ============ SECTION ============ */
.section{padding:var(--sec) 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2))}
.section--line{border-top:1px solid var(--line-soft)}
.sec-head{max-width:800px;margin-bottom:38px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent-2);
}
.tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
.sec-head p{color:var(--muted);margin-bottom:0;max-width:720px}
.sec-head.center p{margin-left:auto;margin-right:auto}

/* ============ CARDS ============ */
.card{
  height:100%;
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:24px 22px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-s);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--line);box-shadow:var(--sh),0 0 22px rgba(56,189,248,.16)}
.card-ico{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(56,189,248,.22),rgba(37,99,235,.28));
  border:1px solid var(--line);color:var(--accent-2);font-size:1.05rem;margin-bottom:16px;
}
.card h3{margin-bottom:9px}
.card p{color:var(--muted);font-size:.92rem;margin-bottom:0}
.card .card-foot{margin-top:16px;font-size:.83rem;color:var(--accent-2);font-weight:600;display:inline-flex;align-items:center;gap:7px}
.cell-stack{margin-bottom:22px}

/* ============ DATA STRIP ============ */
.stat-strip{
  border-radius:var(--r-l);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(9,20,44,.9),rgba(11,26,58,.62));
  padding:8px 0;
  box-shadow:var(--sh);
}
.stat{padding:22px 18px;text-align:left;border-right:1px solid rgba(148,163,184,.1)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;
  background:linear-gradient(120deg,#7dd3fc,#2563eb);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.15}
.stat span{display:block;font-size:.83rem;color:var(--muted);margin-top:6px}

/* ============ CATEGORY ENTRY ============ */
.cat-card{
  position:relative;display:block;height:100%;overflow:hidden;
  border-radius:var(--r-l);border:1px solid var(--line-soft);
  background:var(--glass-strong);color:var(--text);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.cat-card:hover{transform:translateY(-6px);border-color:var(--accent-2);color:var(--text);box-shadow:var(--sh),0 0 26px rgba(56,189,248,.24)}
.cat-card img{width:100%;height:172px;object-fit:cover;opacity:.78;transition:opacity .3s ease,transform .5s ease}
.cat-card:hover img{opacity:.95;transform:scale(1.05)}
.cat-card-body{padding:20px 20px 24px}
.cat-card-body h3{margin-bottom:8px}
.cat-card-body p{color:var(--muted);font-size:.9rem;margin-bottom:14px}
.cat-card-body .more{font-size:.83rem;font-weight:700;color:var(--accent-2);display:inline-flex;align-items:center;gap:7px}

/* ============ TABLE / COMPARE ============ */
.table-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line-soft);background:rgba(8,18,41,.6)}
table.cmp{width:100%;border-collapse:collapse;min-width:620px;margin:0}
table.cmp th,table.cmp td{padding:15px 18px;text-align:left;font-size:.9rem;border-bottom:1px solid rgba(148,163,184,.1)}
table.cmp thead th{font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);background:rgba(3,9,25,.6)}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp td.good{color:var(--ok);font-weight:600}
table.cmp td.bad{color:#f87171;font-weight:600}
table.cmp th.hl{color:var(--accent-2);background:rgba(56,189,248,.08)}

/* ============ BAR CHART ============ */
.bars{display:grid;gap:16px}
.bar-row{display:grid;grid-template-columns:150px 1fr 74px;align-items:center;gap:14px}
.bar-row span.lbl{font-size:.86rem;color:#cbd5e1}
.bar-track{height:11px;border-radius:999px;background:rgba(3,9,25,.85);border:1px solid var(--line-soft);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#2563eb,#38bdf8);box-shadow:0 0 14px rgba(56,189,248,.5)}
.bar-row span.val{font-size:.86rem;font-weight:700;color:var(--accent-2);text-align:right}

/* ============ STEPS ============ */
.steps{display:grid;gap:0}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:24px 0;border-bottom:1px solid rgba(148,163,184,.1);
}
.step:last-child{border-bottom:0}
.step-num{
  width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.05rem;color:#04121f;
  background:linear-gradient(140deg,#38bdf8,#2563eb);box-shadow:0 0 18px rgba(56,189,248,.35);
}
.step h3{margin-bottom:7px}
.step p{color:var(--muted);font-size:.92rem;margin-bottom:0}

/* ============ TOOL DEMO ============ */
.tool{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background:var(--glass-strong);box-shadow:var(--sh);
}
.tool-left{padding:30px 28px;border-right:1px solid var(--line-soft)}
.tool-right{padding:30px 28px;background:linear-gradient(150deg,rgba(37,99,235,.16),rgba(3,9,25,.5))}
.tool img{border-radius:var(--r);border:1px solid var(--line-soft);margin-bottom:18px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{display:flex;gap:11px;align-items:flex-start;font-size:.9rem;color:#cbd5e1}
.check-list i{color:var(--accent-2);margin-top:4px;font-size:.82rem}
.gauge{text-align:center;padding:14px 0 6px}
.gauge b{display:block;font-size:2.6rem;font-weight:800;color:var(--accent-2);line-height:1}
.gauge span{font-size:.8rem;color:var(--muted)}
.signal-row{display:flex;justify-content:space-between;font-size:.85rem;padding:9px 0;border-bottom:1px dashed rgba(148,163,184,.14);color:#cbd5e1}
.signal-row:last-child{border-bottom:0}
.signal-row em{font-style:normal;font-weight:700;color:var(--accent-2)}

/* ============ SCENARIO / RANK / REVIEW ============ */
.scene{
  padding:20px 20px;border-radius:var(--r);border:1px solid var(--line-soft);
  background:rgba(8,18,41,.55);height:100%;transition:.26s ease;
}
.scene:hover{border-color:var(--line);background:rgba(11,26,58,.75)}
.scene h3{font-size:1rem;margin-bottom:8px}
.scene p{font-size:.87rem;color:var(--muted);margin-bottom:0}
.rank-item{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(148,163,184,.1)}
.rank-item:last-child{border-bottom:0}
.rank-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.9rem;color:var(--accent-2);background:rgba(56,189,248,.1);border:1px solid var(--line);
}
.rank-item h3{font-size:.98rem;margin-bottom:5px}
.rank-item p{font-size:.87rem;color:var(--muted);margin-bottom:0}
.review{
  height:100%;padding:22px;border-radius:var(--r);border:1px solid var(--line-soft);
  background:var(--glass);display:flex;flex-direction:column;gap:12px;
}
.review .stars{color:var(--warn);font-size:.82rem;letter-spacing:2px}
.review p{font-size:.9rem;color:#cbd5e1;margin-bottom:0;flex:1}
.review .who{font-size:.82rem;color:var(--dim);font-weight:600}

/* ============ TIMELINE ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line-soft)}
.tl{padding:26px 22px;border-right:1px solid rgba(148,163,184,.1);background:rgba(8,18,41,.5)}
.tl:last-child{border-right:0}
.tl b{display:block;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);margin-bottom:10px}
.tl h3{font-size:1rem;margin-bottom:8px}
.tl p{font-size:.86rem;color:var(--muted);margin-bottom:0}

/* ============ ASSURANCE ============ */
.assure{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure-item{padding:22px 20px;border-radius:var(--r);border:1px solid var(--line-soft);background:rgba(8,18,41,.5)}
.assure-item i{color:var(--accent-2);font-size:1.15rem;margin-bottom:12px;display:block}
.assure-item h3{font-size:.97rem;margin-bottom:7px}
.assure-item p{font-size:.85rem;color:var(--muted);margin-bottom:0}

/* ============ NEWS ============ */
.news-list{display:grid;gap:14px}
.news-item{
  display:block;padding:20px 22px;border-radius:var(--r);
  border:1px solid var(--line-soft);background:rgba(8,18,41,.55);color:var(--text);
  transition:.26s ease;
}
.news-item:hover{transform:translateX(4px);border-color:var(--accent-2);color:var(--text);background:rgba(11,26,58,.8)}
.news-meta{display:block;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-2);font-weight:700;margin-bottom:9px}
.news-item h3{font-size:1.02rem;margin-bottom:8px}
.news-item p{font-size:.88rem;color:var(--muted);margin-bottom:0}
.side-panel{
  border-radius:var(--r);border:1px solid var(--line);background:var(--glass-strong);
  padding:24px 22px;box-shadow:var(--sh);
}
.side-panel img{border-radius:var(--r-s);margin-bottom:18px;border:1px solid var(--line-soft)}
.side-panel h3{font-size:1.05rem}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.14)}
.side-list li:last-child{border-bottom:0}
.side-list a{font-size:.89rem;color:#cbd5e1;font-weight:500;display:block}
.side-list a:hover{color:var(--accent-2)}
.side-list em{display:block;font-style:normal;font-size:.75rem;color:var(--dim);margin-top:4px}
.empty-note{color:var(--muted);font-size:.9rem;padding:18px;border-radius:var(--r);border:1px dashed var(--line-soft)}

/* ============ QUICK ANSWER / FAQ ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.qa{padding:22px;border-radius:var(--r);border:1px solid var(--line-soft);background:rgba(8,18,41,.5)}
.qa h3{font-size:.99rem;margin-bottom:9px;color:var(--accent-2)}
.qa p{font-size:.89rem;color:var(--muted);margin-bottom:0}
details.faq{
  border:1px solid var(--line-soft);border-radius:var(--r);
  background:rgba(8,18,41,.55);margin-bottom:12px;overflow:hidden;
}
details.faq summary{
  cursor:pointer;padding:18px 22px;font-weight:600;font-size:.96rem;color:var(--text);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;color:var(--accent-2);transition:transform .25s ease}
details.faq[open] summary::after{transform:rotate(180deg)}
details.faq[open] summary{color:var(--accent-2)}
details.faq .faq-body{padding:0 22px 20px;color:var(--muted);font-size:.9rem}

/* ============ FORM ============ */
.lead-band{
  border-radius:var(--r-l);border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(125deg,rgba(9,20,44,.95),rgba(11,26,58,.7));
  box-shadow:var(--sh);
}
.lead-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:0}
.lead-copy{padding:38px 34px}
.lead-copy h2{margin-bottom:14px}
.lead-copy p{color:var(--muted);font-size:.93rem}
.lead-form{padding:38px 34px;border-left:1px solid var(--line-soft);background:rgba(3,9,25,.4)}
.field{margin-bottom:15px}
.field label{display:block;font-size:.79rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-bottom:7px;font-weight:600}
.field input,.field select{
  width:100%;padding:12px 15px;border-radius:var(--r-s);
  background:rgba(3,9,25,.85);border:1px solid var(--line-soft);color:var(--text);transition:.22s ease;
}
.field input:focus,.field select:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.16);outline:none}
.field input::placeholder{color:#4b5b70}
.form-note{font-size:.76rem;color:var(--dim);margin:12px 0 0}

/* ============ FOOTER ============ */
.site-footer{border-top:1px solid var(--line-soft);background:rgba(3,7,18,.92);padding:56px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.site-footer p{font-size:.87rem;color:var(--muted);max-width:340px}
.site-footer h4{font-size:.79rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);margin-bottom:16px}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:.87rem;color:var(--muted)}
.foot-links a:hover{color:var(--accent-2)}
.foot-bottom{border-top:1px solid rgba(148,163,184,.1);padding-top:20px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.foot-bottom span{font-size:.79rem;color:var(--dim)}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;
  border:1px solid rgba(248,113,113,.4);color:#fca5a5;font-weight:800;font-size:.78rem;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 18px;border-radius:999px;min-height:52px;
  background:rgba(3,9,25,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(3,9,25,.88),rgba(3,9,25,.88)),linear-gradient(120deg,#38bdf8,#a855f7);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#eaf6ff;font-weight:700;font-size:.84rem;
  box-shadow:0 0 22px rgba(56,189,248,.4);
  opacity:.82;transition:.28s ease;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab:hover,.fab:focus{opacity:1;color:#fff;transform:translateY(-3px) scale(1.04);box-shadow:0 0 34px rgba(56,189,248,.66)}
.fab:active{transform:scale(.96) translateY(0)}
.fab i{font-size:1rem;color:var(--accent-2)}
.fab .fab-dot{
  position:absolute;top:-3px;right:-3px;width:11px;height:11px;border-radius:50%;
  background:#ef4444;box-shadow:0 0 0 2px rgba(3,7,18,.9),0 0 12px rgba(239,68,68,.9);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.32)}50%{box-shadow:0 0 30px rgba(56,189,248,.6)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .header-inner{gap:12px;justify-content:space-between}
  .header-actions{margin-left:auto}
  .tool{grid-template-columns:1fr}
  .tool-left{border-right:0;border-bottom:1px solid var(--line-soft)}
  .lead-grid{grid-template-columns:1fr}
  .lead-form{border-left:0;border-top:1px solid var(--line-soft)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .tl{border-bottom:1px solid rgba(148,163,184,.1)}
  .tl:nth-child(2n){border-right:0}
  .assure{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .hero-inner{padding-top:46px}
  .stat{border-right:0;border-bottom:1px solid rgba(148,163,184,.1)}
  .stat:last-child{border-bottom:0}
  .qa-grid{grid-template-columns:1fr}
  .bar-row{grid-template-columns:110px 1fr 58px;gap:10px}
  .countdown-nums{margin-left:0}
  .header-actions .btn{padding:9px 14px;font-size:.82rem}
}
@media (max-width:520px){
  .grid-container{padding-left:15px;padding-right:15px}
  .brand-text strong{font-size:.92rem}
  .brand-text em{display:none}
  .brand-mark{width:34px;height:34px}
  .header-actions .btn-ghost{display:none}
  .header-actions .btn-primary{padding:9px 13px;font-size:.78rem}
  .hero h1{font-size:1.52rem}
  .hero-cta .btn{width:100%}
  .step{grid-template-columns:1fr;gap:12px}
  .timeline{grid-template-columns:1fr}
  .tl{border-right:0}
  .assure{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .lead-copy,.lead-form{padding:26px 20px}
  .fab{bottom:auto;top:auto;left:12px;bottom:84px;padding:11px 14px;font-size:.78rem}
  .bar-row{grid-template-columns:1fr;gap:6px}
  .bar-row span.val{text-align:left}
}

/* roulang page: article */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,28,58,.62);
  --glass-strong:rgba(9,20,44,.88);
  --line:rgba(56,189,248,.20);
  --line-soft:rgba(148,163,184,.14);
  --accent:#2563eb;
  --accent-2:#38bdf8;
  --accent-3:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#34d399;
  --warn:#fbbf24;
  --r-s:10px;
  --r:16px;
  --r-l:24px;
  --sh-s:0 4px 18px rgba(2,8,23,.5);
  --sh:0 16px 44px rgba(2,8,23,.62);
  --glow:0 0 22px rgba(56,189,248,.32);
  --sec:clamp(54px,7vw,100px);
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -6%,rgba(37,99,235,.20),transparent 60%),
    radial-gradient(900px 520px at 96% 4%,rgba(56,189,248,.14),transparent 62%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-3);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent-2)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .6rem;font-weight:800;letter-spacing:-.01em;color:var(--text)}
h1{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h2{font-size:clamp(1.35rem,2.5vw,2rem)}
h3{font-size:clamp(1.08rem,1.7vw,1.32rem);font-weight:700}
p{margin:0 0 1rem;color:#cbd5e1}
ul,ol{margin:0 0 1rem;padding-left:1.15rem;color:#cbd5e1}
li{margin-bottom:.45rem}
.grid-container{max-width:1260px;padding-left:20px;padding-right:20px;margin:0 auto}
/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);
  color:#02101f;font-size:.95rem;
  box-shadow:0 0 18px rgba(56,189,248,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:.9rem;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(56,189,248,.09)}
.main-nav a.active{color:#05121f;background:linear-gradient(135deg,#38bdf8,#2563eb);font-weight:700;box-shadow:var(--glow)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(12,26,52,.7);color:var(--text);font-size:1.05rem;cursor:pointer;
}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(5,12,28,.97)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;border-bottom:1px solid rgba(148,163,184,.08);color:var(--muted);font-weight:500}
.mobile-nav a.active{color:var(--accent-2);background:rgba(56,189,248,.08)}
/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,#38bdf8,#2563eb 62%,#1d4ed8);
  color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover,.btn-primary:focus{
  color:#04121f;transform:translateY(-2px);
  box-shadow:0 0 32px rgba(56,189,248,.62),0 10px 26px rgba(2,8,23,.55);
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(56,189,248,.42);color:var(--accent-2)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(56,189,248,.12);color:#eaf6ff;transform:translateY(-2px)}
.btn-outline{background:rgba(13,28,58,.6);border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--accent-2);color:#eaf6ff;transform:translateY(-2px)}
.btn-lg{padding:14px 26px;font-size:.98rem}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
/* ============ BREADCRUMB / ARTICLE HERO ============ */
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.82rem;color:var(--dim);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb i{font-size:.62rem;color:var(--dim)}
.article-hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line-soft)}
.article-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;z-index:-2;transform:scale(1.03)}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(102deg,rgba(3,7,18,.97) 0%,rgba(5,14,36,.88) 52%,rgba(8,18,41,.66) 100%);
}
.article-hero-inner{padding:clamp(40px,5.5vw,74px) 0 clamp(34px,4vw,52px);max-width:900px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700;
  margin-bottom:18px;
}
.article-hero h1{margin-bottom:18px;text-shadow:0 6px 30px rgba(2,8,23,.75)}
.article-lead{font-size:clamp(.97rem,1.3vw,1.07rem);color:#cbd5e1;max-width:820px;margin-bottom:22px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:.78rem;font-weight:600;
  background:rgba(13,28,58,.66);border:1px solid var(--line-soft);color:#cbd5e1;
}
.meta-pill i{color:var(--accent-2);font-size:.76rem}
/* ============ LAYOUT ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start}
.article-body{
  background:var(--glass-strong);
  border:1px solid var(--line-soft);
  border-radius:var(--r-l);
  padding:clamp(22px,3vw,42px);
  box-shadow:var(--sh);
}
.article-body h2{margin-top:2rem;padding-top:1.1rem;border-top:1px solid var(--line-soft)}
.article-body h2:first-child{margin-top:0;padding-top:0;border-top:0}
.article-body h3{margin-top:1.5rem;color:#e2efff}
.article-body p,.article-body li{color:#cbd5e1}
.article-body ul,.article-body ol{padding-left:1.3rem}
.article-body strong{color:#fff}
.article-body blockquote{
  margin:1.5rem 0;padding:18px 22px;border-radius:var(--r);
  border-left:3px solid var(--accent-2);
  background:rgba(56,189,248,.08);
  color:#e2efff;font-size:1.02rem;
}
.article-body img{border-radius:var(--r);margin:1.4rem 0;border:1px solid var(--line-soft)}
.article-body a{text-decoration:underline;text-decoration-color:rgba(56,189,248,.45)}
.article-body table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.92rem}
.article-body th,.article-body td{padding:11px 13px;border:1px solid var(--line-soft);text-align:left}
.article-body th{background:rgba(56,189,248,.10);color:#e2efff}
.article-body code{background:rgba(56,189,248,.10);padding:2px 6px;border-radius:6px;font-size:.9em}
.pull-quote{
  margin:1.6rem 0;padding:20px 24px;border-radius:var(--r);
  background:linear-gradient(135deg,rgba(37,99,235,.20),rgba(56,189,248,.10));
  border:1px solid var(--line);
  font-size:1.06rem;font-weight:600;color:#eaf6ff;
  box-shadow:var(--glow);
}
.pull-quote i{color:var(--accent-2);margin-right:8px}
/* ============ SIDEBAR ============ */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px}
.side-card{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:22px;
  box-shadow:var(--sh-s);
}
.side-card h3{font-size:1rem;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--accent-2);font-size:.9rem}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{margin-bottom:12px;padding-bottom:12px;border-bottom:1px dashed var(--line-soft)}
.side-list li:last-child{margin-bottom:0;padding-bottom:0;border-bottom:0}
.side-list a{display:block;font-size:.9rem;font-weight:600;color:#dbeeff;line-height:1.45;margin-bottom:4px}
.side-list span{font-size:.75rem;color:var(--dim)}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-box{
  background:rgba(56,189,248,.08);
  border:1px solid var(--line-soft);
  border-radius:var(--r-s);
  padding:14px;
  text-align:center;
}
.stat-box strong{display:block;font-size:1.35rem;font-weight:800;color:var(--accent-2)}
.stat-box span{font-size:.74rem;color:var(--muted);line-height:1.35;display:block;margin-top:3px}
.side-cta{background:linear-gradient(160deg,rgba(37,99,235,.24),rgba(8,18,41,.9));border-color:var(--line)}
.side-cta p{font-size:.88rem;color:#cbd5e1;margin-bottom:14px}
/* ============ CONTENT SECTIONS ============ */
.section{padding:var(--sec) 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2))}
.section--line{border-top:1px solid var(--line-soft)}
.tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent-2);
}
.tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head p{font-size:.98rem;color:var(--muted);margin-bottom:0}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
/* cards grid */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-cards--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:24px;
  transition:.26s ease;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0 auto auto 0;height:2px;width:0;
  background:linear-gradient(90deg,#38bdf8,#2563eb);transition:width .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh)}
.card:hover::before{width:100%}
.card-ico{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line);color:var(--accent-2);
  font-size:1.05rem;margin-bottom:16px;
}
.card h3{margin-bottom:9px}
.card p{font-size:.9rem;color:var(--muted);margin-bottom:0}
.card-img{border-radius:var(--r);overflow:hidden;border:1px solid var(--line-soft);margin-bottom:16px}
.card-img img{width:100%;height:172px;object-fit:cover;transition:transform .4s ease}
.card:hover .card-img img{transform:scale(1.06)}
.card-tag{
  position:absolute;top:14px;right:14px;padding:4px 11px;border-radius:999px;
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  background:rgba(220,38,38,.85);color:#fff;
}
/* matrix / metric board */
.metric-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.metric{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:22px 20px;
  transition:.25s ease;
}
.metric:hover{border-color:var(--line);box-shadow:var(--glow)}
.metric strong{display:block;font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;color:var(--accent-2);line-height:1.1}
.metric span{display:block;font-size:.82rem;color:var(--muted);margin-top:6px}
.metric em{font-style:normal;font-size:.72rem;color:var(--ok);font-weight:700}
/* service matrix */
.svc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.svc{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:20px 22px;transition:.25s ease;
}
.svc:hover{border-color:var(--line);transform:translateX(4px)}
.svc-ico{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#04121f;font-size:1rem;
}
.svc h3{font-size:1rem;margin-bottom:6px}
.svc p{font-size:.87rem;color:var(--muted);margin-bottom:0}
/* compare table */
.compare-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line-soft);background:var(--glass)}
table.compare{width:100%;border-collapse:collapse;min-width:560px}
table.compare th,table.compare td{padding:14px 18px;text-align:left;font-size:.9rem;border-bottom:1px solid var(--line-soft)}
table.compare thead th{background:rgba(56,189,248,.10);color:#e2efff;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:rgba(56,189,248,.05)}
.pill-ok{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:.76rem;font-weight:700;background:rgba(52,211,153,.14);color:var(--ok)}
.pill-warn{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:.76rem;font-weight:700;background:rgba(251,191,36,.14);color:var(--warn)}
/* timeline */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,#38bdf8,rgba(56,189,248,.05))}
.tl-item{position:relative;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#081229;border:2px solid var(--accent-2);box-shadow:0 0 12px rgba(56,189,248,.6);
}
.tl-item h3{font-size:.98rem;margin-bottom:5px}
.tl-item p{font-size:.88rem;color:var(--muted);margin-bottom:0}
/* info strip */
.info-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  border:1px solid var(--line-soft);border-radius:var(--r-l);overflow:hidden;background:var(--glass)
}
.info-strip > div{padding:26px 24px;border-right:1px solid var(--line-soft)}
.info-strip > div:last-child{border-right:0}
.info-strip h3{font-size:1rem;margin-bottom:8px}
.info-strip p{font-size:.87rem;color:var(--muted);margin-bottom:0}
/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:0;overflow:hidden;transition:.25s ease;
}
.faq-item[open]{border-color:var(--line);box-shadow:var(--sh-s)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-weight:700;font-size:.95rem;color:#e2efff;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent-2);transition:transform .25s ease;font-size:.85rem}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:.9rem;color:var(--muted);line-height:1.65}
/* cta band */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--r-l);border:1px solid var(--line);
  padding:clamp(30px,4.5vw,52px);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(56,189,248,.12));
  box-shadow:var(--glow);
}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#cbd5e1;max-width:620px;margin-bottom:22px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* form */
.form-panel{
  background:var(--glass-strong);border:1px solid var(--line-soft);border-radius:var(--r-l);
  padding:clamp(24px,3.4vw,40px);box-shadow:var(--sh);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.field label{font-size:.82rem;font-weight:600;color:#cbd5e1}
.field input,.field select,.field textarea{
  background:rgba(3,7,18,.7);border:1px solid var(--line-soft);border-radius:var(--r-s);
  padding:11px 14px;color:var(--text);transition:.22s ease;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.16)
}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.form-note{font-size:.78rem;color:var(--dim);margin-top:6px}
/* article fallback */
.empty-note{
  background:var(--glass);border:1px dashed var(--line);border-radius:var(--r-l);
  padding:clamp(30px,5vw,56px);text-align:center;
}
.empty-note i{font-size:1.7rem;color:var(--accent-2);margin-bottom:14px;display:block}
.empty-note h2{font-size:1.3rem}
/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(3,7,18,.5),rgba(3,7,18,.95));
  padding:clamp(40px,5vw,66px) 0 26px;
  margin-top:var(--sec);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px;margin-bottom:34px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot-brand .brand-mark{width:36px;height:36px;border-radius:11px}
.foot-brand .brand-text strong{font-size:.98rem}
.site-footer p{font-size:.87rem;color:var(--muted);max-width:420px}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:9px}
.foot-links a{font-size:.87rem;color:var(--muted)}
.foot-links a:hover{color:var(--accent-2)}
.site-footer h4{font-size:.9rem;margin-bottom:14px;color:#e2efff}
.foot-bottom{
  border-top:1px solid var(--line-soft);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:.78rem;color:var(--dim);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 9px;border-radius:8px;
  background:rgba(220,38,38,.16);border:1px solid rgba(248,113,113,.4);color:#fca5a5;font-weight:800;font-size:.72rem;
}
/* FAB */
.fab-help{
  position:fixed;left:16px;bottom:96px;z-index:800;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#38bdf8,#2563eb);color:#04121f;
  font-size:1.15rem;box-shadow:0 10px 26px rgba(56,189,248,.5);
  border:1px solid rgba(224,245,255,.5);opacity:.9;
  animation:fabPulse 3.4s ease-in-out infinite;transition:.25s ease;
}
.fab-help:hover{opacity:1;transform:scale(1.08) rotate(8deg);color:#04121f}
.fab-help:active{transform:scale(.95) translateY(2px)}
.fab-help .fab-dot{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
  background:#ef4444;border:2px solid #eaf6ff;
}
@keyframes fabPulse{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}
/* responsive */
@media screen and (max-width:1024px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar .side-card{flex:1 1 300px}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-board{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
}
@media screen and (max-width:768px){
  .svc-grid{grid-template-columns:1fr}
  .info-strip{grid-template-columns:1fr}
  .info-strip > div{border-right:0;border-bottom:1px solid var(--line-soft)}
  .info-strip > div:last-child{border-bottom:0}
  .form-grid{grid-template-columns:1fr}
  .grid-cards{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:none}
}
@media screen and (max-width:520px){
  .metric-board{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .hero-cta .btn{width:100%}
  .fab-help{left:12px;bottom:80px;width:52px;height:52px}
}

/* roulang page: category1 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,28,58,.62);
  --glass-strong:rgba(9,20,44,.88);
  --line:rgba(56,189,248,.20);
  --line-soft:rgba(148,163,184,.14);
  --accent:#2563eb;
  --accent-2:#38bdf8;
  --accent-3:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#34d399;
  --warn:#fbbf24;
  --r-s:10px;
  --r:16px;
  --r-l:24px;
  --sh-s:0 4px 18px rgba(2,8,23,.5);
  --sh:0 16px 44px rgba(2,8,23,.62);
  --glow:0 0 22px rgba(56,189,248,.32);
  --sec:clamp(54px,7vw,100px);
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -6%,rgba(37,99,235,.20),transparent 60%),
    radial-gradient(900px 520px at 96% 4%,rgba(56,189,248,.14),transparent 62%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-3);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent-2)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
.grid-container{max-width:1260px;padding-left:20px;padding-right:20px}
/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);color:#02101f;font-size:.95rem;
  box-shadow:0 0 18px rgba(56,189,248,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:.9rem;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(56,189,248,.09)}
.main-nav a.active{color:#05121f;background:linear-gradient(135deg,#38bdf8,#2563eb);font-weight:700;box-shadow:var(--glow)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(12,26,52,.7);color:var(--text);font-size:1.05rem;cursor:pointer;
}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(5,12,28,.97)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;border-bottom:1px solid rgba(148,163,184,.08);color:var(--muted);font-weight:500}
.mobile-nav a.active{color:var(--accent-2);background:rgba(56,189,248,.08)}
/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,#38bdf8,#2563eb 62%,#1d4ed8);
  color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover,.btn-primary:focus{color:#04121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.62),0 10px 26px rgba(2,8,23,.55)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(56,189,248,.42);color:var(--accent-2)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(56,189,248,.12);color:#eaf6ff;transform:translateY(-2px)}
.btn-outline{background:rgba(13,28,58,.6);border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--accent-2);color:#eaf6ff;transform:translateY(-2px)}
.btn-lg{padding:14px 26px;font-size:.98rem}
.btn-block{width:100%}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
/* ============ TYPO ============ */
h1,h2,h3,h4{font-weight:800;line-height:1.22;letter-spacing:-.015em;margin:0 0 14px;color:#fff}
h1{font-size:clamp(1.7rem,3.5vw,2.7rem)}
h2{font-size:clamp(1.35rem,2.4vw,2rem)}
h3{font-size:clamp(1.05rem,1.5vw,1.26rem)}
h4{font-size:1rem}
p{margin:0 0 14px;color:#cbd5e1}
.lead{font-size:clamp(.98rem,1.3vw,1.08rem);color:#cbd5e1}
small{color:var(--dim)}
/* ============ LAYOUT ============ */
.section{padding:var(--sec) 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2))}
.section--line{border-top:1px solid var(--line-soft)}
.section-head{max-width:720px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent-2);
}
.tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(56,189,248,.35),transparent);margin:0}
/* ============ CARDS ============ */
.card{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:24px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--sh-s);transition:.26s ease;height:100%;
}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh)}
.card i.card-ico{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line);color:var(--accent-2);
  font-size:1.05rem;margin-bottom:16px;
}
.card h3{margin-bottom:10px}
.card p{margin-bottom:0;font-size:.94rem;color:var(--muted)}
.card-list{list-style:none;margin:14px 0 0;padding:0}
.card-list li{position:relative;padding-left:22px;margin-bottom:9px;font-size:.92rem;color:#cbd5e1}
.card-list li::before{content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;color:var(--accent-2);font-size:.72rem}
.grid-gap{row-gap:22px}
/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.38;z-index:-2;transform:scale(1.03)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(104deg,rgba(3,7,18,.97) 0%,rgba(5,14,36,.88) 48%,rgba(8,18,41,.64) 100%)}
.hero-inner{padding:clamp(52px,7vw,92px) 0 clamp(40px,5vw,62px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700;margin-bottom:20px;
}
.hero h1{margin-bottom:18px;text-shadow:0 6px 30px rgba(2,8,23,.75)}
.hero-lead{max-width:660px;margin-bottom:24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:24px}
.chip-row{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;font-size:.78rem;font-weight:600;
  background:rgba(13,28,58,.66);border:1px solid var(--line-soft);color:#cbd5e1;
}
.chip i{color:var(--accent-2);font-size:.74rem}
/* Shocking deal strip */
.deal-strip{
  position:relative;border:1px solid var(--line);border-radius:var(--r-l);
  background:linear-gradient(135deg,rgba(37,99,235,.28),rgba(8,18,41,.86) 55%,rgba(3,7,18,.9));
  padding:22px 22px 20px;box-shadow:var(--sh);overflow:hidden;
}
.deal-strip::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 220px at 88% -10%,rgba(56,189,248,.26),transparent 62%);
  pointer-events:none;
}
.deal-strip .ds-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px;position:relative;z-index:1}
.ds-label{
  display:inline-flex;align-items:center;gap:8px;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:800;color:#04121f;background:linear-gradient(135deg,#fbbf24,#f59e0b);
  padding:6px 12px;border-radius:999px;
}
.ds-count{display:flex;align-items:center;gap:8px}
.ds-count span{
  min-width:44px;text-align:center;padding:7px 6px;border-radius:10px;font-weight:800;font-size:1rem;
  background:rgba(3,7,18,.75);border:1px solid var(--line);color:var(--accent-2);font-variant-numeric:tabular-nums;
}
.ds-count small{color:var(--dim);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;align-self:center}
.ds-prod{display:flex;gap:16px;align-items:center;position:relative;z-index:1;flex-wrap:wrap}
.ds-thumb{width:88px;height:88px;border-radius:14px;overflow:hidden;border:1px solid var(--line);flex:0 0 auto}
.ds-thumb img{width:100%;height:100%;object-fit:cover}
.ds-meta{flex:1 1 220px;min-width:210px}
.ds-meta strong{display:block;font-size:1.06rem;color:#fff;margin-bottom:4px}
.ds-meta span{font-size:.86rem;color:var(--muted)}
.ds-price{display:flex;align-items:baseline;gap:9px;margin-top:8px;flex-wrap:wrap}
.ds-price b{font-size:1.28rem;color:var(--accent-2);font-weight:800}
.ds-price s{color:var(--dim);font-size:.86rem}
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;position:relative;z-index:1}
.stat-pill{
  flex:1 1 130px;background:rgba(3,7,18,.6);border:1px solid var(--line-soft);border-radius:var(--r-s);
  padding:11px 13px;text-align:left;
}
.stat-pill b{display:block;font-size:1.12rem;color:#fff;font-weight:800}
.stat-pill span{font-size:.72rem;color:var(--dim);letter-spacing:.05em}
/* ============ METRIC BOARD ============ */
.metric-board{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
}
.metric{
  background:var(--glass-strong);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:18px;position:relative;overflow:hidden;
}
.metric b{display:block;font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:800;color:#fff;line-height:1.1}
.metric span{display:block;font-size:.78rem;color:var(--muted);margin-top:7px}
.metric i{position:absolute;right:14px;top:14px;color:rgba(56,189,248,.35);font-size:1.1rem}
.metric-bar{height:5px;border-radius:5px;background:rgba(148,163,184,.16);margin-top:13px;overflow:hidden}
.metric-bar em{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
/* ============ COMPARE ============ */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-panel{border-radius:var(--r);padding:24px;border:1px solid var(--line-soft);background:var(--glass)}
.compare-panel.good{border-color:rgba(52,211,153,.32);background:linear-gradient(180deg,rgba(16,58,48,.35),rgba(9,20,44,.7))}
.compare-panel.bad{border-color:rgba(248,113,113,.26);background:linear-gradient(180deg,rgba(60,16,20,.32),rgba(9,20,44,.7))}
.compare-panel h3{display:flex;align-items:center;gap:10px}
.compare-panel h3 i{font-size:.95rem}
.compare-panel.good h3 i{color:var(--ok)}
.compare-panel.bad h3 i{color:#f87171}
.tick-list{list-style:none;margin:0;padding:0}
.tick-list li{position:relative;padding-left:26px;margin-bottom:11px;font-size:.94rem;color:#cbd5e1}
.tick-list li i{position:absolute;left:0;top:3px;font-size:.82rem}
.tick-list.good li i{color:var(--ok)}
.tick-list.bad li i{color:#f87171}
/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,rgba(56,189,248,.6),rgba(37,99,235,.06))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:5px;width:14px;height:14px;border-radius:50%;
  background:#04121f;border:2px solid var(--accent-2);box-shadow:0 0 12px rgba(56,189,248,.6);
}
.tl-item h4{margin-bottom:6px}
.tl-item p{margin-bottom:0;font-size:.93rem;color:var(--muted)}
.tl-step{display:inline-block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:800;margin-bottom:6px}
/* ============ CATEGORY ENTRIES ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cat-card{
  display:flex;flex-direction:column;gap:12px;
  background:linear-gradient(180deg,rgba(13,28,58,.8),rgba(6,14,32,.86));
  border:1px solid var(--line);border-radius:var(--r-l);padding:26px 24px;
  transition:.28s ease;position:relative;overflow:hidden;
}
.cat-card:hover{transform:translateY(-5px);box-shadow:0 0 30px rgba(56,189,248,.28);color:inherit}
.cat-card .cc-ico{
  width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(37,99,235,.85),rgba(56,189,248,.75));color:#04121f;font-size:1.2rem;
}
.cat-card h3{color:#fff;margin-bottom:6px}
.cat-card p{font-size:.92rem;color:var(--muted);margin-bottom:0}
.cat-card .cc-more{font-size:.82rem;font-weight:700;color:var(--accent-2);display:inline-flex;align-items:center;gap:7px;margin-top:4px}
/* ============ CONTENT LIST ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line-soft);
  border-radius:var(--r);overflow:hidden;transition:.26s ease;height:100%;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:#0a142c}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:.4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:18px;display:flex;flex-direction:column;flex:1 1 auto}
.post-meta{display:flex;align-items:center;gap:10px;font-size:.74rem;color:var(--dim);margin-bottom:9px;flex-wrap:wrap}
.post-meta .pm-cat{color:var(--accent-2);font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.post-body h3{font-size:1rem;margin-bottom:8px}
.post-body h3 a{color:#fff}
.post-body h3 a:hover{color:var(--accent-2)}
.post-body p{font-size:.88rem;color:var(--muted);flex:1 1 auto;margin-bottom:12px}
.post-link{font-size:.82rem;font-weight:700;color:var(--accent-2);display:inline-flex;align-items:center;gap:7px}
.empty-note{
  padding:26px;border:1px dashed var(--line);border-radius:var(--r);color:var(--muted);text-align:center;
  background:rgba(9,20,44,.5);font-size:.94rem;
}
/* ============ ASSURANCE ============ */
.assure-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.assure{border-left:2px solid var(--accent-2);padding:6px 0 6px 16px}
.assure strong{display:block;color:#fff;font-size:.98rem;margin-bottom:6px}
.assure span{font-size:.86rem;color:var(--muted)}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);overflow:hidden}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;color:#fff;font-weight:700;font-size:.98rem;
  padding:17px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px;cursor:pointer;
}
.faq-q i{color:var(--accent-2);transition:transform .26s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 20px 18px;margin:0;font-size:.93rem;color:var(--muted)}
.faq-item.open .faq-a{max-height:420px}
/* ============ CTA / FORM ============ */
.cta-panel{
  border:1px solid var(--line);border-radius:var(--r-l);padding:clamp(24px,3.4vw,40px);
  background:linear-gradient(135deg,rgba(37,99,235,.24),rgba(8,18,41,.88) 58%,rgba(3,7,18,.94));
  position:relative;overflow:hidden;
}
.cta-panel::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 240px at 92% -12%,rgba(56,189,248,.24),transparent 62%);pointer-events:none}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;position:relative;z-index:1}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:.8rem;font-weight:600;color:#cbd5e1}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-s);border:1px solid var(--line-soft);
  background:rgba(3,7,18,.72);color:#fff;transition:.22s ease;
}
.field input::placeholder{color:var(--dim)}
.field input:focus,.field select:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.16);outline:none}
.form-note{font-size:.78rem;color:var(--dim);margin:12px 0 0;position:relative;z-index:1}
/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:800;width:56px;height:56px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#04121f;
  background:linear-gradient(135deg,#38bdf8,#2563eb);
  border:1px solid rgba(56,189,248,.6);
  box-shadow:0 0 22px rgba(56,189,248,.48);
  opacity:.82;transition:.26s ease;animation:fabPulse 3.4s ease-in-out infinite;
}
.fab:hover,.fab:focus{opacity:1;color:#04121f;transform:scale(1.1)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab .fab-dot{position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:50%;background:#f43f5e;border:2px solid #030712}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.4)}50%{box-shadow:0 0 30px rgba(56,189,248,.72)}}
/* ============ FOOTER ============ */
.site-footer{border-top:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(6,14,32,.7),rgba(3,7,18,.96));padding:clamp(40px,5vw,64px) 0 26px;margin-top:clamp(30px,4vw,50px)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot-brand .brand-mark{width:36px;height:36px}
.foot-brand .brand-text strong{font-size:.98rem}
.site-footer p{font-size:.88rem;color:var(--muted)}
.site-footer h4{font-size:.86rem;letter-spacing:.06em;text-transform:uppercase;color:#fff;margin-bottom:14px}
.foot-links{list-style:none;margin:0;padding:0}
.foot-links li{margin-bottom:9px}
.foot-links a{font-size:.88rem;color:var(--muted)}
.foot-links a:hover{color:var(--accent-2)}
.foot-bottom{
  margin-top:30px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
  font-size:.8rem;color:var(--dim);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;padding:4px 10px;border-radius:999px;
  border:1px solid rgba(248,113,113,.5);color:#fca5a5;font-weight:800;font-size:.72rem;letter-spacing:.08em;
}
/* ============ RESPONSIVE ============ */
@media screen and (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .header-actions .btn{display:none}
  .metric-board{grid-template-columns:repeat(2,minmax(0,1fr))}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-grid,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media screen and (max-width:768px){
  .compare{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .section{padding:clamp(44px,9vw,64px) 0}
}
@media screen and (max-width:520px){
  body{font-size:15px}
  .metric-board{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .cat-grid,.post-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .ds-prod{align-items:flex-start}
  .ds-thumb{width:72px;height:72px}
  .hero-cta .btn{width:100%}
  .stat-pill{flex:1 1 100%}
}

/* roulang page: category2 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,28,58,.62);
  --glass-strong:rgba(9,20,44,.88);
  --line:rgba(56,189,248,.20);
  --line-soft:rgba(148,163,184,.14);
  --accent:#2563eb;
  --accent-2:#38bdf8;
  --accent-3:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#34d399;
  --warn:#fbbf24;
  --r-s:10px;
  --r:16px;
  --r-l:24px;
  --sh-s:0 4px 18px rgba(2,8,23,.5);
  --sh:0 16px 44px rgba(2,8,23,.62);
  --glow:0 0 22px rgba(56,189,248,.32);
  --sec:clamp(54px,7vw,100px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -6%,rgba(37,99,235,.20),transparent 60%),
    radial-gradient(900px 520px at 96% 4%,rgba(56,189,248,.14),transparent 62%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-3);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent-2)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.22;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.72rem,4.1vw,2.9rem)}
h2{font-size:clamp(1.38rem,2.7vw,2.1rem)}
h3{font-size:clamp(1.02rem,1.6vw,1.24rem)}
h4{font-size:1rem}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
summary{outline:none}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}
.grid-container{max-width:1260px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text);min-width:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);
  color:#02101f;font-size:.95rem;
  box-shadow:0 0 18px rgba(56,189,248,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:.9rem;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(56,189,248,.09)}
.main-nav a.active{color:#05121f;background:linear-gradient(135deg,#38bdf8,#2563eb);font-weight:700;box-shadow:var(--glow)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(12,26,52,.7);color:var(--text);font-size:1rem;cursor:pointer;align-items:center;justify-content:center;
}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(5,12,28,.97)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;border-bottom:1px solid rgba(148,163,184,.08);color:var(--muted);font-weight:500}
.mobile-nav a.active{color:var(--accent-2);background:rgba(56,189,248,.08)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,#38bdf8,#2563eb 62%,#1d4ed8);
  color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover,.btn-primary:focus{
  color:#04121f;transform:translateY(-2px);
  box-shadow:0 0 32px rgba(56,189,248,.62),0 10px 26px rgba(2,8,23,.55);
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(56,189,248,.42);color:var(--accent-2)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(56,189,248,.12);color:#eaf6ff;transform:translateY(-2px)}
.btn-outline{background:rgba(13,28,58,.6);border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--accent-2);color:#eaf6ff;transform:translateY(-2px)}
.btn-lg{padding:14px 26px;font-size:.98rem}
.btn-block{width:100%}

/* ============ SECTION SYSTEM ============ */
.section{padding:var(--sec) 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.25))}
.section--line{border-top:1px solid var(--line-soft)}
.tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent-2);
}
.tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
.sec-head{max-width:820px;margin-bottom:34px}
.sec-head p{color:var(--muted);margin:0}
.sec-head--wide{max-width:920px}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line-soft)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.38;z-index:-2;transform:scale(1.03)}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(104deg,rgba(3,7,18,.97) 0%,rgba(5,14,36,.88) 48%,rgba(8,18,41,.64) 100%);
}
.hero-row{padding:clamp(44px,6vw,88px) 0 clamp(38px,5vw,64px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700;
  margin-bottom:20px;
}
.hero h1{margin-bottom:18px;text-shadow:0 6px 30px rgba(2,8,23,.75)}
.hero-lead{font-size:clamp(.98rem,1.35vw,1.09rem);color:#cbd5e1;max-width:720px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:.79rem;font-weight:600;
  background:rgba(13,28,58,.66);border:1px solid var(--line-soft);color:#cbd5e1;
}
.chip i{color:var(--accent-2);font-size:.75rem}
.hero-panel{
  background:var(--glass-strong);border:1px solid var(--line);border-radius:var(--r-l);
  padding:22px;box-shadow:var(--sh);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-panel img{border-radius:var(--r);aspect-ratio:16/10;object-fit:cover;margin-bottom:18px}
.hero-panel h3{font-size:1rem;margin-bottom:6px}
.hero-panel .panel-note{font-size:.84rem;color:var(--dim);margin-bottom:12px}
.hero-stat{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed rgba(148,163,184,.18)}
.hero-stat:last-child{border-bottom:0;padding-bottom:0}
.hero-stat span{color:var(--muted);font-size:.86rem}
.hero-stat b{font-size:1.12rem;color:var(--accent-2);font-weight:800;white-space:nowrap}

/* ============ METRICS ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric-card{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:22px 20px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh-s)}
.metric-num{
  font-size:clamp(1.6rem,3vw,2.15rem);font-weight:800;line-height:1.1;margin-bottom:8px;
  background:linear-gradient(135deg,#38bdf8,#60a5fa);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-card h3{font-size:.98rem;margin-bottom:6px}
.metric-card p{font-size:.86rem;color:var(--muted);margin:0}

/* ============ TELL GRID ============ */
.tell-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tell-card{
  background:linear-gradient(160deg,rgba(13,28,58,.72),rgba(6,14,34,.78));
  border:1px solid var(--line-soft);border-radius:var(--r);padding:24px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tell-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:0 14px 34px rgba(2,8,23,.55)}
.tell-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(56,189,248,.22),rgba(37,99,235,.18));
  border:1px solid var(--line);color:var(--accent-2);font-size:1.05rem;margin-bottom:16px;
}
.tell-card h3{margin-bottom:8px}
.tell-card p{font-size:.9rem;color:var(--muted);margin:0}
.tell-label{
  display:inline-block;margin-top:14px;padding:5px 11px;border-radius:999px;
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent-2);background:rgba(56,189,248,.10);border:1px solid var(--line);
}

/* ============ COMPARE ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.compare-col{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);padding:24px;
}
.compare-col.is-good{border-color:rgba(52,211,153,.32);background:linear-gradient(160deg,rgba(9,32,44,.7),rgba(6,16,34,.8))}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:1.05rem}
.compare-col.is-good h3 i{color:var(--ok)}
.compare-col h3 i{color:var(--dim)}
.compare-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px dashed rgba(148,163,184,.16)}
.compare-row:last-child{border-bottom:0;padding-bottom:0}
.compare-row span{font-size:.88rem;color:var(--muted);flex:1 1 auto}
.compare-row b{font-size:.92rem;color:var(--text);white-space:nowrap}
.compare-col.is-good .compare-row b{color:var(--ok)}
.compare-col:not(.is-good) .compare-row b{color:#fca5a5}
.compare-foot{margin-top:18px;font-size:.84rem;color:var(--dim);margin-bottom:0}

/* ============ TIMELINE ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tl-item{
  position:relative;background:rgba(9,20,44,.5);border:1px solid var(--line-soft);
  border-radius:var(--r);padding:24px 22px;transition:.25s ease;
}
.tl-item:hover{border-color:var(--line);transform:translateY(-3px)}
.tl-step{
  display:inline-block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;color:var(--accent-2);margin-bottom:12px;
}
.tl-item h3{font-size:1rem;margin-bottom:8px}
.tl-item p{font-size:.86rem;color:var(--muted);margin:0}

/* ============ NEWS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:#050d20}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:18px;display:flex;flex-direction:column;gap:9px;flex:1 1 auto}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:.75rem;color:var(--dim);letter-spacing:.02em}
.news-meta span{display:inline-flex;align-items:center;gap:6px}
.news-body h3{font-size:1.02rem;margin:0}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--accent-2)}
.news-excerpt{font-size:.87rem;color:var(--muted);margin:0}
.empty-note{
  padding:26px;border-radius:var(--r);border:1px dashed var(--line);
  color:var(--muted);font-size:.92rem;text-align:left;background:rgba(9,20,44,.45);margin:0;
}

/* ============ TRUST ============ */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust-item{
  display:flex;gap:13px;align-items:flex-start;padding:20px;
  background:rgba(9,20,44,.5);border:1px solid var(--line-soft);border-radius:var(--r);transition:.25s ease;
}
.trust-item:hover{border-color:var(--line);transform:translateY(-3px)}
.trust-item i{color:var(--accent-2);font-size:1.15rem;margin-top:3px}
.trust-item h3{font-size:.96rem;margin-bottom:6px}
.trust-item p{font-size:.85rem;color:var(--muted);margin:0}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r);
  padding:0 22px;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:var(--line);box-shadow:var(--sh-s)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;padding:19px 34px 19px 0;
  font-weight:600;font-size:.98rem;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.78rem;
  position:absolute;right:0;top:50%;transform:translateY(-50%);color:var(--accent-2);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq-item p{color:var(--muted);font-size:.92rem;margin:0;padding:0 0 20px}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:start;
  background:linear-gradient(135deg,rgba(13,28,58,.9),rgba(6,14,34,.94));
  border:1px solid var(--line);border-radius:var(--r-l);
  padding:clamp(24px,3.4vw,44px);box-shadow:var(--sh);
}
.cta-panel::before{
  content:"";position:absolute;width:360px;height:360px;right:-130px;top:-150px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.26),transparent 70%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{margin-bottom:14px}
.cta-copy > p{color:var(--muted);font-size:.95rem}
.cta-list{display:grid;gap:11px;margin:0 0 20px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:#cbd5e1}
.cta-list i{color:var(--accent-2);margin-top:4px;font-size:.85rem}
.price-box{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;
  padding:16px 18px;border-radius:var(--r);border:1px solid var(--line-soft);
  background:rgba(3,9,24,.6);margin-bottom:14px;
}
.price-box b{font-size:1.35rem;color:var(--accent-2)}
.price-box span{font-size:.82rem;color:var(--dim)}
.pay-row{display:flex;flex-wrap:wrap;gap:10px}
.pay-badge{
  padding:8px 14px;border-radius:999px;border:1px solid var(--line-soft);
  background:rgba(3,9,24,.6);font-size:.79rem;font-weight:600;color:#cbd5e1;
}
.form-card{
  position:relative;z-index:1;background:rgba(4,11,26,.72);border:1px solid var(--line-soft);
  border-radius:var(--r);padding:24px;
}
.field{margin-bottom:14px}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:7px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-s);
  background:rgba(3,9,24,.8);border:1px solid var(--line-soft);color:var(--text);transition:.22s ease;
}
.field input::placeholder{color:#4b5b70}
.field input:focus,.field select:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.18);outline:none}
.form-note{font-size:.78rem;color:var(--dim);margin:12px 0 0}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 16px 10px 12px;border-radius:999px;
  background:rgba(7,7,13,.82);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,10,20,.86),rgba(7,10,20,.86)),linear-gradient(120deg,#38bdf8,#2563eb);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#eaf6ff;font-size:.82rem;font-weight:700;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  min-height:52px;opacity:.85;transition:.25s ease;
}
.fab:hover,.fab:focus{
  color:#fff;opacity:1;transform:translateY(-2px);
  box-shadow:0 0 30px rgba(6,182,212,.62);
}
.fab:active{transform:scale(.96)}
.fab-icon{display:flex;align-items:center;justify-content:center;width:30px;height:30px;font-size:.95rem;color:var(--accent-2)}
.fab-dot{
  position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#ec4899;box-shadow:0 0 10px rgba(236,72,153,.9);animation:pulse 1.8s infinite ease-in-out;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(3,7,18,.35),rgba(2,6,16,.97));
  padding:clamp(38px,5vw,64px) 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:28px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot-brand .brand-text strong{font-size:1rem}
.site-footer p{color:var(--muted);font-size:.9rem}
.site-footer h4{font-size:.95rem;margin-bottom:14px}
.foot-links{display:grid;gap:9px}
.foot-links a{color:var(--muted);font-size:.89rem}
.foot-links a:hover{color:var(--accent-2)}
.foot-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:.79rem;color:var(--dim);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  color:var(--accent-2);font-weight:800;font-size:.78rem;
}

/* ============ RESPONSIVE ============ */
@media screen and (max-width:1024px){
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .tell-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr}
}
@media screen and (max-width:980px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .brand-text strong{font-size:.94rem}
}
@media screen and (max-width:640px){
  .metric-grid,.tell-grid,.news-grid,.timeline,.trust-grid,.foot-grid,.compare-wrap{grid-template-columns:1fr}
  .header-inner{gap:9px;min-height:64px}
  .brand-text em{display:none}
  .brand-text strong{font-size:.86rem}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:.85rem}
  .header-actions .btn{padding:8px 13px;font-size:.76rem}
  .nav-toggle{width:38px;height:38px}
  .hero-cta .btn{width:100%}
  .hero-panel{padding:18px}
  .cta-panel{padding:22px}
  .form-card{padding:18px}
  .faq-item{padding:0 16px}
  .fab{bottom:78px;left:12px;font-size:.76rem;padding:8px 14px 8px 10px}
}

/* roulang page: category3 */
/* ============================================================
   DESIGN SYSTEM — dùng chung với trang chủ
   ============================================================ */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass:rgba(13,28,58,.62);
  --glass-strong:rgba(9,20,44,.88);
  --line:rgba(56,189,248,.20);
  --line-soft:rgba(148,163,184,.14);
  --accent:#2563eb;
  --accent-2:#38bdf8;
  --accent-3:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f43f5e;
  --r-s:10px;
  --r:16px;
  --r-l:24px;
  --sh-s:0 4px 18px rgba(2,8,23,.5);
  --sh:0 16px 44px rgba(2,8,23,.62);
  --glow:0 0 22px rgba(56,189,248,.32);
  --sec:clamp(54px,7vw,100px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -6%,rgba(37,99,235,.20),transparent 60%),
    radial-gradient(900px 520px at 96% 4%,rgba(56,189,248,.14),transparent 62%),
    linear-gradient(180deg,#030712 0%,#050d20 45%,#030712 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-3);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent-2)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{
  font-family:inherit;font-weight:800;line-height:1.24;
  margin:0 0 14px;color:var(--text);letter-spacing:-.015em;
}
h1{font-size:clamp(1.74rem,3.7vw,2.72rem)}
h2{font-size:clamp(1.32rem,2.5vw,1.96rem)}
h3{font-size:clamp(1.02rem,1.6vw,1.18rem);font-weight:700}
h4{font-size:.95rem;font-weight:700}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent-2);outline-offset:2px;border-radius:6px;
}

.grid-container{max-width:1260px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2563eb,#38bdf8);
  color:#02101f;font-size:.95rem;
  box-shadow:0 0 18px rgba(56,189,248,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:9px 13px;border-radius:999px;font-size:.9rem;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(56,189,248,.09)}
.main-nav a.active{color:#05121f;background:linear-gradient(135deg,#38bdf8,#2563eb);font-weight:700;box-shadow:var(--glow)}
.header-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(12,26,52,.7);color:var(--text);font-size:1.05rem;cursor:pointer;flex:0 0 auto;
}
.nav-toggle:hover{border-color:var(--accent-2);color:var(--accent-2)}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(5,12,28,.97)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 20px;border-bottom:1px solid rgba(148,163,184,.08);color:var(--muted);font-weight:500}
.mobile-nav a.active{color:var(--accent-2);background:rgba(56,189,248,.08)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  border:1px solid transparent;cursor:pointer;transition:.24s ease;text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,#38bdf8,#2563eb 62%,#1d4ed8);
  color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42);
}
.btn-primary:hover,.btn-primary:focus{
  color:#04121f;transform:translateY(-2px);
  box-shadow:0 0 32px rgba(56,189,248,.62),0 10px 26px rgba(2,8,23,.55);
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(56,189,248,.42);color:var(--accent-2)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(56,189,248,.12);color:#eaf6ff;transform:translateY(-2px)}
.btn-outline{background:rgba(13,28,58,.6);border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{border-color:var(--accent-2);color:#eaf6ff;transform:translateY(-2px)}
.btn-lg{padding:14px 26px;font-size:.98rem}
.btn-block{width:100%}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line-soft)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.4;z-index:-2;transform:scale(1.04);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(104deg,rgba(3,7,18,.97) 0%,rgba(5,14,36,.88) 48%,rgba(8,18,41,.66) 100%);
}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(26px,4vw,52px);
  align-items:start;padding:clamp(46px,6vw,86px) 0 clamp(40px,5.2vw,66px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.10);border:1px solid var(--line);
  font-size:.73rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700;
  margin-bottom:20px;
}
.hero h1{margin-bottom:18px;text-shadow:0 6px 30px rgba(2,8,23,.75)}
.hero-lead{font-size:clamp(.97rem,1.3vw,1.07rem);color:#cbd5e1;max-width:680px;margin-bottom:26px;line-height:1.7}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:.79rem;font-weight:600;
  background:rgba(13,28,58,.66);border:1px solid var(--line-soft);color:#cbd5e1;
}
.chip i{color:var(--accent-2);font-size:.74rem}

/* Hero panel — bảng chia vốn */
.hero-panel{
  background:linear-gradient(160deg,rgba(11,26,58,.92),rgba(5,13,32,.92));
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:20px;
  box-shadow:var(--sh);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.panel-cover{position:relative;border-radius:var(--r);overflow:hidden;margin-bottom:18px;border:1px solid var(--line-soft)}
.panel-cover img{width:100%;height:190px;object-fit:cover}
.panel-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.05),rgba(3,7,18,.62))}
.panel-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:.68rem;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase;
  background:linear-gradient(135deg,#38bdf8,#2563eb);color:#04121f;
  box-shadow:0 0 16px rgba(56,189,248,.5);
}
.panel-title{font-size:1.08rem;margin-bottom:14px}
.panel-toc{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.panel-toc li{display:flex;gap:11px;font-size:.87rem;color:#cbd5e1;line-height:1.5}
.panel-toc li span{
  flex:0 0 auto;font-weight:800;font-size:.72rem;color:var(--accent-2);
  padding-top:2px;letter-spacing:.06em;
}
.panel-note{font-size:.75rem;color:var(--dim);margin:12px 0 0;text-align:center;line-height:1.5}

/* ============ SECTION ============ */
.section{padding:var(--sec) 0;position:relative}
.section--alt{
  background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.16));
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.section--tight{padding:clamp(38px,4.6vw,62px) 0}
.tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.71rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--accent-2);
}
.tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38bdf8,#2563eb)}
.section-head{max-width:780px;margin-bottom:clamp(26px,3.6vw,44px)}
.section-head--wide{max-width:900px}
.section-head p{color:var(--muted);font-size:.96rem;line-height:1.72;margin-bottom:0}

/* ============ GRIDS ============ */
.g-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.g-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.g-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}

/* ============ CARD ============ */
.card{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:22px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--sh-s)}
.card h3{margin-bottom:9px}
.card p{margin-bottom:0;color:var(--muted);font-size:.9rem;line-height:1.68}
.card-icon{
  width:44px;height:44px;border-radius:13px;margin-bottom:16px;
  display:flex;align-items:center;justify-content:center;font-size:1.05rem;
  background:linear-gradient(140deg,rgba(56,189,248,.22),rgba(37,99,235,.18));
  border:1px solid var(--line);color:var(--accent-2);
}
.card-num{
  display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.14em;
  color:var(--accent-2);margin-bottom:10px;
}

/* ============ KPI ============ */
.kpi-grid{margin-bottom:22px}
.kpi{
  background:linear-gradient(165deg,rgba(11,26,58,.75),rgba(5,13,32,.7));
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:22px 20px;
  transition:.26s ease;
}
.kpi:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--sh-s)}
.kpi-num{
  display:block;font-size:clamp(1.7rem,3.2vw,2.3rem);font-weight:800;line-height:1;
  background:linear-gradient(120deg,#7dd3fc,#38bdf8 45%,#2563eb);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:12px;letter-spacing:-.02em;
}
.kpi-num em{font-style:normal;font-size:.62em;margin-left:2px}
.kpi h3{font-size:1rem;margin-bottom:8px}
.kpi p{margin:0;color:var(--muted);font-size:.85rem;line-height:1.6}
.kpi-note{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r);
  background:rgba(56,189,248,.07);
  border:1px solid var(--line);
}
.kpi-note i{color:var(--accent-2);font-size:1.05rem;margin-top:4px;flex:0 0 auto}
.kpi-note p{margin:0;color:#cbd5e1;font-size:.88rem;line-height:1.68}

/* ============ SCENARIO ============ */
.scenario{
  border-left:3px solid rgba(56,189,248,.55);
  padding:4px 0 4px 18px;
  transition:border-color .26s ease;
}
.scenario:hover{border-left-color:var(--accent-2)}
.scenario h3{font-size:1rem;margin-bottom:7px}
.scenario p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.66}

/* ============ COMPARE ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-col{border-radius:var(--r);padding:24px;border:1px solid var(--line-soft);background:rgba(9,20,44,.55)}
.compare-col--bad{border-color:rgba(244,63,94,.26);background:linear-gradient(170deg,rgba(244,63,94,.09),rgba(9,20,44,.5))}
.compare-col--good{border-color:rgba(52,211,153,.26);background:linear-gradient(170deg,rgba(52,211,153,.09),rgba(9,20,44,.5))}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:1.02rem;margin-bottom:16px}
.compare-col--bad h3 i{color:var(--danger)}
.compare-col--good h3 i{color:var(--ok)}
.compare-col ul{display:flex;flex-direction:column;gap:12px}
.compare-col li{
  display:flex;gap:11px;font-size:.88rem;line-height:1.62;color:#cbd5e1;
}
.compare-col li i{margin-top:5px;font-size:.72rem;flex:0 0 auto}
.compare-col--bad li i{color:var(--danger)}
.compare-col--good li i{color:var(--ok)}

/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:34px;max-width:860px}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,#38bdf8,rgba(37,99,235,.12));
}
.tl-item{position:relative;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#38bdf8;box-shadow:0 0 12px rgba(56,189,248,.75);
}
.tl-item h3{font-size:1rem;margin-bottom:7px}
.tl-item p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.68}
.tl-step{
  display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent-2);margin-bottom:7px;
}

/* ============ CHANNEL MATRIX ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.channel-card{
  display:flex;flex-direction:column;gap:12px;
  padding:24px;border-radius:var(--r);
  border:1px solid var(--line-soft);
  background:linear-gradient(165deg,rgba(11,26,58,.72),rgba(5,13,32,.66));
  transition:.26s ease;
}
.channel-card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--sh-s)}
.channel-card h3{font-size:1.02rem;margin:0}
.channel-card p{margin:0;color:var(--muted);font-size:.87rem;line-height:1.66;flex:1}
.channel-card .channel-link{
  display:inline-flex;align-items:center;gap:8px;font-size:.83rem;font-weight:700;color:var(--accent-2);
}
.channel-card .channel-link i{font-size:.72rem;transition:transform .24s ease}
.channel-card:hover .channel-link i{transform:translateX(4px)}
.channel-card.is-current{border-color:rgba(56,189,248,.5);box-shadow:0 0 22px rgba(56,189,248,.2)}

/* ============ POST LIST ============ */
.post-card{
  display:flex;flex-direction:column;gap:11px;
  padding:22px;border-radius:var(--r);
  border:1px solid var(--line-soft);
  background:var(--glass);
  transition:.26s ease;
}
.post-card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--sh-s)}
.post-card h3{font-size:1rem;margin:0;line-height:1.45}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--accent-2)}
.post-card p{margin:0;color:var(--muted);font-size:.87rem;line-height:1.66;flex:1}
.post-meta{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  border-top:1px solid var(--line-soft);padding-top:11px;
  font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--dim);
}
.empty-note{
  grid-column:1/-1;color:var(--muted);font-size:.92rem;
  padding:22px;border:1px dashed var(--line);border-radius:var(--r);text-align:center;
}

/* ============ ASSURANCE ============ */
.assure{display:flex;gap:14px;align-items:flex-start}
.assure-ico{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line);color:var(--accent-2);
}
.assure h3{font-size:.98rem;margin-bottom:6px}
.assure p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.66}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  background:var(--glass);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s ease;
}
.faq-item[open]{border-color:var(--line)}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:17px 20px;cursor:pointer;font-weight:700;font-size:.95rem;
  color:var(--text);list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:1.25rem;line-height:1;color:var(--accent-2);
  font-weight:700;flex:0 0 auto;transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-body{padding:0 20px 18px;color:var(--muted);font-size:.89rem;line-height:1.72}
.faq-item .faq-body p:last-child{margin-bottom:0}

/* ============ CTA / FORM ============ */
.cta-band{
  border-radius:var(--r-l);
  border:1px solid var(--line);
  background:
    radial-gradient(800px 400px at 12% 0%,rgba(37,99,235,.26),transparent 62%),
    linear-gradient(160deg,rgba(11,26,58,.9),rgba(4,10,26,.94));
  padding:clamp(28px,4vw,48px);
  box-shadow:var(--sh);
}
.cta-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(24px,3.6vw,44px);align-items:start}
.cta-copy p{color:#cbd5e1;font-size:.94rem;line-height:1.72}
.cta-points{display:flex;flex-direction:column;gap:11px;margin-top:18px}
.cta-points li{display:flex;gap:11px;font-size:.88rem;color:#cbd5e1;line-height:1.6}
.cta-points li i{color:var(--ok);margin-top:5px;font-size:.75rem;flex:0 0 auto}
.form-card{
  background:rgba(4,10,26,.6);
  border:1px solid var(--line-soft);
  border-radius:var(--r);
  padding:clamp(20px,2.6vw,28px);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:1/-1}
.field label{font-size:.8rem;font-weight:600;color:var(--muted);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;
  background:rgba(3,10,26,.8);
  border:1px solid var(--line-soft);
  border-radius:var(--r-s);
  padding:12px 14px;
  color:var(--text);
  font-size:.91rem;
  transition:border-color .22s ease,box-shadow .22s ease;
  appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,#38bdf8 50%),linear-gradient(135deg,#38bdf8 50%,transparent 50%);
  background-position:calc(100% - 19px) 50%,calc(100% - 14px) 50%;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:#4b5a70}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.18);
}
.field textarea{resize:vertical;min-height:88px}
.form-note{
  font-size:.76rem;color:var(--dim);margin:14px 0 0;line-height:1.55;text-align:left;
}
.form-success{
  display:none;margin-top:14px;padding:13px 16px;border-radius:var(--r-s);
  background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.34);
  color:#a7f3d0;font-size:.86rem;line-height:1.6;
}
.form-success.show{display:block}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:11px;
  min-height:56px;padding:8px 20px 8px 9px;border-radius:999px;
  background:rgba(7,12,28,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(56,189,248,.5);
  color:#eaf6ff;font-weight:700;font-size:.83rem;line-height:1.25;
  box-shadow:0 0 22px rgba(56,189,248,.42);
  transition:transform .28s ease,box-shadow .28s ease,opacity .28s ease;
  opacity:.9;
}
.fab:hover,.fab:focus{
  color:#ffffff;transform:translateY(-3px) scale(1.04);opacity:1;
  box-shadow:0 0 34px rgba(56,189,248,.7);
}
.fab:active{transform:scale(.96)}
.fab-ico{
  position:relative;width:38px;height:38px;flex:0 0 auto;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#38bdf8,#2563eb);color:#04121f;font-size:1rem;
}
.fab-dot{
  position:absolute;top:-1px;right:-1px;width:10px;height:10px;border-radius:50%;
  background:var(--danger);box-shadow:0 0 10px rgba(244,63,94,.9);
  animation:fabPulse 1.7s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.28);opacity:.6}}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(3,7,18,.98));
  padding-top:clamp(38px,5vw,64px);
  margin-top:0;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px);
  padding-bottom:clamp(26px,3.6vw,44px);
}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot-brand .brand-text strong{font-size:1rem}
.site-footer p{color:var(--muted);font-size:.87rem;line-height:1.7;margin:0}
.site-footer h4{
  font-size:.76rem;letter-spacing:.15em;text-transform:uppercase;color:var(--accent-2);
  margin-bottom:16px;font-weight:800;
}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{color:var(--muted);font-size:.87rem}
.foot-links a:hover{color:var(--accent-2)}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  border-top:1px solid var(--line-soft);
  padding:20px 0 30px;
  font-size:.78rem;color:var(--dim);line-height:1.6;
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(56,189,248,.4);color:var(--accent-2);
  font-weight:800;font-size:.72rem;flex:0 0 auto;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .header-inner{gap:12px}
  .main-nav a{padding:8px 10px;font-size:.85rem}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-lead{max-width:none}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:6px}
  .header-actions{margin-left:auto}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .brand-text em{display:none}
  .brand-text strong{font-size:.94rem}
  .header-actions .btn{padding:9px 14px;font-size:.79rem}
  .g-2,.g-3,.g-4,.compare,.form-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .grid-container{padding-left:16px;padding-right:16px}
  .kpi{padding:18px 16px}
  .fab{bottom:84px;left:12px;padding:7px 16px 7px 8px;font-size:.78rem}
  .fab-ico{width:34px;height:34px;font-size:.92rem}
}
@media (max-width:520px){
  .brand-text{display:none}
  .header-actions .btn-ghost{padding:8px 10px}
  .hero-cta .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .panel-cover img{height:160px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .fab-text{display:none}
  .fab{padding:8px;min-height:52px}
}