/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(11,26,53,.72);
  --surface-2:rgba(8,18,41,.9);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#38bdf8;
  --holo:#60a5fa;
  --danger:#f43f5e;
  --warn:#fbbf24;
  --ok:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(96,165,250,.35);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 20px 45px rgba(2,6,23,.65);
  --glow:0 0 26px rgba(56,189,248,.35);
  --maxw:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(96,165,250,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .6rem;font-weight:800;letter-spacing:-.01em}
p{margin:0 0 1rem}
ul,ol{margin:0;padding:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.container{max-width:var(--maxw);padding-left:20px;padding-right:20px;position:relative;z-index:1}

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(3,7,18,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#03121f;
  font-size:18px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08);border-color:var(--line)}
.nav-link.active{
  color:#e0f2fe;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border-color:var(--line-strong);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  color:var(--accent);
  font-weight:700;
  font-size:.9rem;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#bae6fd;border-color:var(--accent)}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  color:#03121f;
  font-weight:800;
  font-size:.9rem;
  padding:10px 18px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7);filter:brightness(1.06);color:#03121f}
.btn-solid:active{transform:translateY(0) scale(.98)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);
  color:var(--accent);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(56,189,248,.18)}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:150px 0 70px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.34;
  z-index:-2;
  transform:scale(1.03);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 480px at 12% 8%,rgba(37,99,235,.42),transparent 65%),
    radial-gradient(700px 420px at 88% 20%,rgba(56,189,248,.24),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.62) 0%,rgba(3,7,18,.94) 72%,var(--bg) 100%);
  z-index:-1;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:48px;
  align-items:center;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  padding:7px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(56,189,248,.08);
  margin-bottom:20px;
}
.chip i{color:var(--accent)}
.hero h1{
  font-size:clamp(1.85rem,3.6vw,3rem);
  line-height:1.2;
  margin-bottom:18px;
  text-wrap:balance;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  color:#cbd5e1;
  font-size:1.03rem;
  line-height:1.7;
  max-width:640px;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:800;
  font-size:.96rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 12px 30px rgba(37,99,235,.42);
  transition:transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(56,189,248,.55);color:#03121f}
.btn-main:active{transform:translateY(-1px) scale(.985)}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:700;
  font-size:.96rem;
  color:#e2e8f0;
  border:1px solid var(--line-strong);
  background:rgba(8,18,41,.6);
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  transition:all .22s ease;
}
.btn-line:hover{border-color:var(--accent);color:#bae6fd;background:rgba(56,189,248,.1);transform:translateY(-3px)}
.hero-points{list-style:none;display:grid;gap:10px;max-width:600px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;color:#cbd5e1;font-size:.94rem}
.hero-points i{color:var(--accent);margin-top:4px;font-size:.85rem}

.hero-poster{position:relative}
.poster-frame{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow),0 0 40px rgba(37,99,235,.25);
  background:var(--bg-2);
}
.poster-frame img{width:100%;aspect-ratio:4/3.1;object-fit:cover;filter:saturate(1.05) contrast(1.03)}
.poster-frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.05) 0%,rgba(3,7,18,.78) 100%);
}
.poster-caption{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
}
.poster-caption strong{display:block;font-size:1.02rem;color:#f1f5f9;margin-bottom:4px}
.poster-caption span{font-size:.85rem;color:#93c5fd}
.poster-badge{
  position:absolute;
  top:16px;left:16px;
  z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:#03121f;
  padding:6px 12px;
  background:linear-gradient(135deg,var(--accent),#a5b4fc);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.poster-float{
  position:absolute;
  right:-10px;bottom:-22px;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  border-radius:14px;
  padding:14px 18px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  min-width:170px;
}
.poster-float b{display:block;font-size:1.5rem;color:var(--accent);line-height:1.1}
.poster-float small{color:var(--muted);font-size:.78rem}

.hero-stats{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.stat-item{background:rgba(8,18,41,.85);padding:22px 20px}
.stat-item b{display:block;font-size:1.7rem;font-weight:800;color:var(--accent);line-height:1.1;margin-bottom:6px}
.stat-item span{font-size:.86rem;color:var(--muted);display:block}

/* ============ SECTION BASE ============ */
main{position:relative;z-index:1}
.section{padding:74px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}
.section-title{font-size:clamp(1.4rem,2.4vw,2.05rem);margin-bottom:12px}
.section-sub{color:var(--muted);font-size:.98rem;line-height:1.7;margin:0}

/* ============ INTRO ============ */
.intro-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:44px;align-items:start}
.intro-text p{color:#cbd5e1;font-size:1rem;line-height:1.72}
.intro-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative}
.intro-media img{width:100%;aspect-ratio:5/4;object-fit:cover}
.intro-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 18px;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.92));
  font-size:.85rem;color:#cbd5e1;
}
.fact-list{list-style:none;display:grid;gap:14px;margin-top:24px}
.fact-list li{
  display:flex;gap:12px;
  padding:14px 16px;
  border-left:2px solid var(--accent);
  background:rgba(56,189,248,.06);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#cbd5e1;font-size:.93rem;
}
.fact-list i{color:var(--accent);margin-top:4px}

/* ============ WARNING CARDS ============ */
.warn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.warn-card{
  position:relative;
  padding:26px 22px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.warn-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 18px 38px rgba(2,6,23,.6),0 0 24px rgba(244,63,94,.16)}
.warn-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  font-weight:800;font-size:1.05rem;
  color:#ffe4e6;
  background:linear-gradient(140deg,rgba(244,63,94,.28),rgba(244,63,94,.08));
  border:1px solid rgba(244,63,94,.45);
  border-radius:12px;
  margin-bottom:16px;
}
.warn-card h3{font-size:1.04rem;margin-bottom:10px;color:#f8fafc}
.warn-card p{color:var(--muted);font-size:.92rem;margin:0}
.warn-card.wide{grid-column:span 2}

/* ============ GUIDE BLOCKS ============ */
.guide-stack{display:grid;gap:18px}
.guide-item{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:22px;
  padding:24px;
  background:linear-gradient(120deg,rgba(11,26,53,.85),rgba(8,18,41,.55));
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .25s ease,transform .25s ease;
}
.guide-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.guide-icon{
  width:64px;height:64px;
  display:grid;place-items:center;
  font-size:1.35rem;
  color:var(--accent);
  background:rgba(56,189,248,.1);
  border:1px solid var(--line-strong);
  border-radius:14px;
}
.guide-item h3{font-size:1.08rem;margin-bottom:8px}
.guide-item p{color:var(--muted);font-size:.94rem;margin:0}

/* ============ CATEGORY ENTRY ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 20px 40px rgba(2,6,23,.65)}
.cat-thumb{position:relative;overflow:hidden}
.cat-thumb img{width:100%;aspect-ratio:16/9.4;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-thumb img{transform:scale(1.06)}
.cat-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.15),rgba(3,7,18,.85))}
.cat-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:#bae6fd;padding:5px 11px;border-radius:999px;
  background:rgba(3,7,18,.72);border:1px solid var(--line-strong);
}
.cat-body{padding:22px;display:flex;flex-direction:column;flex:1}
.cat-body h3{font-size:1.1rem;margin-bottom:10px}
.cat-body p{color:var(--muted);font-size:.92rem;flex:1}
.cat-link{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:.9rem;color:var(--accent);margin-top:8px;
}
.cat-link:hover{gap:12px;color:#bae6fd}

/* ============ CMS CARDS ============ */
.cms-card{
  height:100%;
  display:flex;flex-direction:column;
  padding:24px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cms-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 18px 38px rgba(2,6,23,.6)}
.cms-tag{
  align-self:flex-start;
  font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:#a5f3fc;
  padding:5px 11px;border-radius:999px;
  background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.3);
  margin-bottom:14px;
}
.cms-card h3{font-size:1.03rem;line-height:1.45;margin-bottom:10px}
.cms-card h3 a{color:#f1f5f9}
.cms-card h3 a:hover{color:var(--accent)}
.cms-card p{color:var(--muted);font-size:.91rem;flex:1;margin-bottom:16px}
.cms-meta{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted-2);border-top:1px solid var(--line);padding-top:14px}
.empty-note{
  padding:34px 26px;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  color:var(--muted);
  text-align:center;
  background:rgba(8,18,41,.5);
}

/* ============ STEPS ============ */
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step-card{
  position:relative;
  padding:26px 22px;
  background:rgba(8,18,41,.7);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .25s ease,transform .25s ease;
}
.step-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.step-num{
  font-size:.78rem;font-weight:800;letter-spacing:.16em;color:var(--accent);
  display:block;margin-bottom:12px;
}
.step-card h3{font-size:1rem;margin-bottom:9px}
.step-card p{color:var(--muted);font-size:.9rem;margin:0}

/* ============ COMPARE ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(8,18,41,.68);
}
.compare-col.bad{border-color:rgba(244,63,94,.35);background:linear-gradient(160deg,rgba(244,63,94,.1),rgba(8,18,41,.75))}
.compare-col.good{border-color:rgba(34,211,238,.35);background:linear-gradient(160deg,rgba(34,211,238,.1),rgba(8,18,41,.75))}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:1.08rem;margin-bottom:18px}
.compare-col.bad h3 i{color:var(--danger)}
.compare-col.good h3 i{color:var(--ok)}
.compare-list{list-style:none;display:grid;gap:12px}
.compare-list li{display:flex;gap:11px;color:#cbd5e1;font-size:.93rem;line-height:1.6}
.compare-list i{margin-top:4px;font-size:.8rem}
.compare-col.bad .compare-list i{color:var(--danger)}
.compare-col.good .compare-list i{color:var(--ok)}

/* ============ METRICS ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric-card{
  padding:26px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(37,99,235,.18),rgba(8,18,41,.75));
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(2,6,23,.6)}
.metric-card b{display:block;font-size:2rem;font-weight:800;color:var(--accent);line-height:1.05;margin-bottom:8px}
.metric-card span{display:block;color:#cbd5e1;font-size:.92rem;font-weight:600;margin-bottom:6px}
.metric-card small{color:var(--muted-2);font-size:.8rem;line-height:1.5;display:block}

/* ============ TESTIMONIALS ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote-card{
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  display:flex;flex-direction:column;
  transition:border-color .25s ease,transform .25s ease;
}
.quote-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.quote-card .stars{color:var(--warn);font-size:.85rem;letter-spacing:2px;margin-bottom:14px}
.quote-card p{color:#cbd5e1;font-size:.94rem;flex:1}
.quote-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.quote-avatar{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;color:#03121f;
  background:linear-gradient(140deg,var(--accent),#a5b4fc);
}
.quote-person strong{display:block;font-size:.9rem}
.quote-person small{color:var(--muted-2);font-size:.78rem}

/* ============ PERSONA ============ */
.persona-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.persona-card{
  padding:28px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(8,18,41,.7);
}
.persona-card h3{display:flex;align-items:center;gap:10px;font-size:1.08rem;margin-bottom:16px}
.persona-card.fit h3 i{color:var(--ok)}
.persona-card.unfit h3 i{color:var(--warn)}
.persona-list{list-style:none;display:grid;gap:12px}
.persona-list li{display:flex;gap:11px;color:#cbd5e1;font-size:.93rem}
.persona-list i{margin-top:4px;font-size:.8rem}
.persona-card.fit .persona-list i{color:var(--ok)}
.persona-card.unfit .persona-list i{color:var(--warn)}

/* ============ RANKING ============ */
.rank-list{display:grid;gap:16px}
.rank-row{
  display:grid;
  grid-template-columns:52px minmax(0,1fr) 90px;
  gap:18px;
  align-items:center;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(8,18,41,.66);
  transition:border-color .25s ease,transform .25s ease;
}
.rank-row:hover{border-color:var(--line-strong);transform:translateX(4px)}
.rank-pos{
  font-weight:800;font-size:1.1rem;color:var(--accent);
  width:52px;height:52px;display:grid;place-items:center;
  border-radius:12px;background:rgba(56,189,248,.1);border:1px solid var(--line-strong);
}
.rank-main h3{font-size:.99rem;margin-bottom:8px}
.rank-bar{height:7px;border-radius:999px;background:rgba(148,163,184,.16);overflow:hidden}
.rank-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--danger),var(--warn))}
.rank-level{text-align:right;font-size:.8rem;font-weight:700;color:var(--warn);letter-spacing:.06em;text-transform:uppercase}

/* ============ EVIDENCE ============ */
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.evidence-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface);
  display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease;
}
.evidence-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.evidence-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.evidence-body{padding:22px}
.evidence-body h3{font-size:1.02rem;margin-bottom:9px}
.evidence-body p{color:var(--muted);font-size:.91rem;margin:0}
.evidence-kicker{
  font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);display:block;margin-bottom:10px;
}

/* ============ COMMUNITY ============ */
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:center}
.community-badges{display:flex;flex-wrap:wrap;gap:12px}
.community-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 16px;
  font-size:.87rem;font-weight:600;color:#cbd5e1;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(8,18,41,.7);
  transition:border-color .22s ease,color .22s ease;
}
.community-badge:hover{border-color:var(--accent);color:#e0f2fe}
.community-badge i{color:var(--accent)}

/* ============ ASSURE STRIP ============ */
.assure-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  padding:30px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(37,99,235,.16),rgba(8,18,41,.85));
}
.assure-item{display:flex;gap:13px;align-items:flex-start}
.assure-item i{color:var(--accent);font-size:1.1rem;margin-top:4px}
.assure-item strong{display:block;font-size:.95rem;margin-bottom:4px}
.assure-item small{color:var(--muted);font-size:.83rem;line-height:1.55;display:block}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  padding:52px 44px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(620px 300px at 88% 10%,rgba(56,189,248,.26),transparent 65%),
    linear-gradient(140deg,rgba(37,99,235,.3),rgba(8,18,41,.92));
  overflow:hidden;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center}
.cta-panel h2{font-size:clamp(1.35rem,2.3vw,1.9rem);margin-bottom:14px}
.cta-panel p{color:#cbd5e1;font-size:.97rem;margin-bottom:0}
.sub-form{display:flex;gap:10px;margin-bottom:12px}
.sub-form input{
  flex:1;
  min-width:0;
  padding:13px 16px;
  font-size:.94rem;
  color:var(--text);
  background:rgba(3,7,18,.72);
  border:1px solid var(--line-strong);
  border-radius:10px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.sub-form input::placeholder{color:var(--muted-2)}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{font-size:.8rem;color:var(--muted-2);margin:0}

/* ============ FAB ============ */
.fab{
  position:fixed;
  left:1rem;
  bottom:6rem;
  z-index:50;
  width:58px;height:58px;
  display:grid;place-items:center;
  border-radius:999px;
  background:rgba(7,12,28,.85);
  backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,12,28,.9),rgba(7,12,28,.9)),linear-gradient(135deg,var(--accent),var(--primary));
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:var(--accent);
  font-size:1.25rem;
  opacity:.78;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  animation:fabPulse 3.2s ease-in-out infinite;
  transition:transform .22s ease,opacity .22s ease,box-shadow .22s ease;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 32px rgba(56,189,248,.75);color:#bae6fd;animation-play-state:paused}
.fab:active{transform:scale(.94)}
.fab-dot{
  position:absolute;top:4px;right:4px;
  width:12px;height:12px;border-radius:50%;
  background:var(--danger);
  box-shadow:0 0 0 2px #030712;
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(56,189,248,.35)}
  50%{box-shadow:0 0 30px rgba(56,189,248,.7)}
}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.98));
  padding:60px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text strong{font-size:.98rem}
.footer-col h4{font-size:.86rem;letter-spacing:.14em;text-transform:uppercase;color:#e2e8f0;margin-bottom:16px}
.footer-col p{color:var(--muted);font-size:.89rem;line-height:1.65}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{color:var(--muted);font-size:.89rem}
.footer-links a:hover{color:var(--accent)}
.footer-contact{list-style:none;display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:.87rem}
.footer-contact i{color:var(--accent);margin-top:4px;font-size:.85rem}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  color:var(--muted-2);font-size:.82rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 11px;border-radius:999px;
  border:1px solid rgba(244,63,94,.45);
  color:#fda4af;font-weight:700;font-size:.76rem;letter-spacing:.08em;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero{padding:132px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-poster{max-width:620px}
  .poster-float{right:12px;bottom:-18px}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .warn-grid{grid-template-columns:repeat(2,1fr)}
  .warn-card.wide{grid-column:span 2}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .evidence-grid{grid-template-columns:repeat(2,1fr)}
  .assure-strip{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:860px){
  .main-nav{
    position:absolute;
    top:74px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px 20px 20px;
    background:rgba(3,7,18,.97);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);
    display:none;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px}
  .nav-toggle{display:grid;place-items:center}
  .header-inner{gap:10px}
  .brand-text strong{font-size:.92rem}
  .btn-ghost{padding:8px 11px;font-size:.84rem}
  .btn-solid{padding:9px 14px;font-size:.84rem}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .compare-grid,.persona-grid,.community-grid{grid-template-columns:1fr}
  .assure-strip{grid-template-columns:1fr;padding:24px}
  .cta-panel{padding:34px 24px}
  .guide-item{grid-template-columns:1fr;gap:14px}
  .guide-icon{width:52px;height:52px;font-size:1.15rem}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:118px 0 50px}
  .warn-grid,.cat-grid,.step-row,.metric-grid,.evidence-grid{grid-template-columns:1fr}
  .warn-card.wide{grid-column:span 1}
  .rank-row{grid-template-columns:44px minmax(0,1fr);row-gap:10px}
  .rank-level{grid-column:2;text-align:left}
  .sub-form{flex-direction:column}
  .btn-main,.btn-line{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{width:52px;height:52px;font-size:1.1rem;bottom:5rem}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(11,26,53,.72);
  --surface-2:rgba(8,18,41,.9);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#38bdf8;
  --holo:#60a5fa;
  --danger:#f43f5e;
  --warn:#fbbf24;
  --ok:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(96,165,250,.35);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 20px 45px rgba(2,6,23,.65);
  --glow:0 0 26px rgba(56,189,248,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(96,165,250,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
h1,h2,h3,h4{margin:0 0 .55em;font-weight:800;line-height:1.25;letter-spacing:-.015em}
h1{font-size:clamp(1.75rem,3.4vw,2.55rem)}
h2{font-size:clamp(1.3rem,2.3vw,1.85rem)}
h3{font-size:1.1rem}
h4{font-size:1rem}
p{margin:0 0 1rem}
ul,ol{margin:0 0 1rem;padding-left:1.2rem}
li{margin-bottom:.4rem}
strong{color:#e6eefb}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:1}
/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(3,7,18,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:74px;
  position:relative;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#03121f;
  font-size:18px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08);border-color:var(--line)}
.nav-link.active{
  color:#e0f2fe;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border-color:var(--line-strong);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  color:var(--accent);
  font-weight:700;
  font-size:.9rem;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#bae6fd;border-color:var(--accent)}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  color:#03121f;
  font-weight:800;
  font-size:.9rem;
  padding:10px 18px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7);filter:brightness(1.06);color:#03121f}
.btn-solid:active{transform:translateY(0) scale(.98)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);
  color:var(--accent);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(56,189,248,.18)}
/* ============ HERO ============ */
.hero{
  position:relative;
  padding:150px 0 68px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.32;
  z-index:-2;
  transform:scale(1.03);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 480px at 12% 8%,rgba(37,99,235,.42),transparent 65%),
    radial-gradient(700px 420px at 88% 20%,rgba(56,189,248,.24),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.62) 0%,rgba(3,7,18,.94) 72%,var(--bg) 100%);
  z-index:-1;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:44px;
  align-items:start;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  padding:7px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(56,189,248,.08);
  margin-bottom:18px;
}
.chip i{color:var(--accent)}
.hero h1{margin-bottom:16px;text-wrap:balance}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  color:#cbd5e1;
  font-size:1.02rem;
  line-height:1.7;
  max-width:620px;
  margin-bottom:22px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:24px;
}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.8rem;
  color:#cbd5e1;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(11,26,53,.6);
}
.meta-pill i{color:var(--accent)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:800;
  font-size:.95rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 12px 30px rgba(37,99,235,.42);
  transition:transform .22s ease,box-shadow .22s ease;
  cursor:pointer;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(56,189,248,.55);color:#03121f}
.btn-main:active{transform:translateY(-1px) scale(.985)}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:700;
  font-size:.95rem;
  color:#e2e8f0;
  border:1px solid var(--line-strong);
  border-radius:12px;
  background:rgba(8,18,41,.6);
  transition:all .22s ease;
}
.btn-line:hover{border-color:var(--accent);color:#fff;background:rgba(56,189,248,.12)}
.btn-main.btn-sm,.btn-line.btn-sm{padding:11px 18px;font-size:.88rem}
/* Hero roadmap panel */
.hero-panel{
  background:linear-gradient(160deg,rgba(11,26,53,.92),rgba(8,18,41,.72));
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:var(--shadow);
}
.panel-tag{
  display:inline-block;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ok);
  margin-bottom:8px;
}
.hero-panel h2{font-size:1.18rem;margin-bottom:16px}
.node-list{list-style:none;margin:0 0 20px;padding:0;position:relative}
.node-list::before{
  content:"";
  position:absolute;
  left:17px;top:14px;bottom:14px;
  width:1px;
  background:linear-gradient(180deg,var(--accent),rgba(56,189,248,.05));
}
.node-list li{display:grid;grid-template-columns:36px minmax(0,1fr);gap:14px;padding:9px 0;margin:0}
.node-dot{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:50%;
  font-size:.76rem;
  font-weight:800;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  position:relative;
  z-index:1;
}
.node-list strong{display:block;font-size:.94rem;color:#e6eefb}
.node-list em{font-style:normal;font-size:.83rem;color:var(--muted);line-height:1.5}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
  flex:1 1 160px;
  min-width:0;
  padding:11px 14px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(3,7,18,.72);
  color:var(--text);
  font-size:.9rem;
}
.subscribe-form input::placeholder{color:var(--muted-2)}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.form-note{font-size:.78rem;color:var(--muted-2);margin:10px 0 0;line-height:1.5}
/* ============ SECTIONS ============ */
.section{padding:62px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:30px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:10px;
}
.section-head p{color:var(--muted);margin:0;font-size:.98rem}
/* ============ ARTICLE LAYOUT ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 328px;
  gap:46px;
  align-items:start;
  padding-top:56px;
  padding-bottom:70px;
}
.article-main{min-width:0;max-width:720px}
.article-side{position:sticky;top:98px;display:grid;gap:16px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
}
.side-card h3{font-size:.95rem;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--accent)}
.toc{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{margin:0}
.toc a{
  display:flex;gap:10px;
  padding:9px 0;
  font-size:.88rem;
  color:#cbd5e1;
  border-bottom:1px dashed rgba(96,165,250,.14);
}
.toc li:last-child a{border-bottom:none}
.toc a:hover{color:var(--accent);padding-left:4px}
.toc a span{color:var(--muted-2);font-weight:700;font-size:.8rem}
.side-note{font-size:.86rem;color:var(--muted);margin:0}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{display:flex;gap:9px;font-size:.86rem;color:#cbd5e1;padding:7px 0;margin:0}
.side-list li i{color:var(--danger);margin-top:4px;font-size:.8rem}
.side-contact li i{color:var(--ok)}
.side-alert{
  border-color:rgba(244,63,94,.35);
  background:linear-gradient(160deg,rgba(68,10,26,.7),rgba(8,18,41,.75));
}
.side-alert h3 i{color:var(--danger)}
/* ============ ARTICLE BODY ============ */
.article-block{margin-bottom:56px}
.article-block:last-child{margin-bottom:0}
.article-body{font-size:1.02rem;color:#dbe4f0}
.article-body h2{
  margin-top:2.1rem;
  margin-bottom:.7rem;
  font-size:1.5rem;
  color:#fff;
  padding-left:14px;
  border-left:3px solid var(--accent);
}
.article-body h3{margin-top:1.6rem;color:#e0f2fe}
.article-body p{line-height:1.7;margin-bottom:1rem}
.article-body ul,.article-body ol{padding-left:1.3rem}
.article-body li{margin-bottom:.5rem;line-height:1.65}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent);font-weight:700}
.article-body img{border-radius:var(--radius);border:1px solid var(--line);margin:1.4rem 0}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.94rem}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{background:rgba(37,99,235,.18);color:#e0f2fe;font-weight:700}
.article-body blockquote{
  margin:1.4rem 0;
  padding:16px 20px;
  border-left:3px solid var(--warn);
  background:rgba(251,191,36,.08);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#fde68a;
}
.article-empty{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  padding:34px 26px;
  background:rgba(8,18,41,.6);
  text-align:left;
}
.article-empty h2{font-size:1.3rem}
.article-empty p{color:var(--muted)}
/* ============ SIGN LIST ============ */
.sign-list{list-style:none;margin:0;padding:0}
.sign-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) auto;
  gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.sign-item:first-child{border-top:1px solid var(--line)}
.sign-num{
  width:56px;height:56px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:1.1rem;
  color:#bae6fd;
  border:1px solid var(--line-strong);
  border-radius:14px;
  background:linear-gradient(150deg,rgba(37,99,235,.3),rgba(8,18,41,.7));
}
.sign-item h3{margin-bottom:6px}
.sign-item p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.65}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:6px 11px;
  border-radius:999px;
  white-space:nowrap;
}
.tag--danger{color:#fecdd3;background:rgba(244,63,94,.16);border:1px solid rgba(244,63,94,.4)}
.tag--warn{color:#fde68a;background:rgba(251,191,36,.14);border:1px solid rgba(251,191,36,.38)}
.tag--info{color:#bae6fd;background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.38)}
/* ============ FIGURE ============ */
.article-figure{margin:0 0 30px}
.article-figure img{
  width:100%;
  border-radius:var(--radius);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.article-figure figcaption{font-size:.82rem;color:var(--muted-2);margin-top:10px}
/* ============ TABLE COMPARE ============ */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface);
}
.table-wrap table{width:100%;border-collapse:collapse;margin:0;font-size:.92rem}
.table-wrap th,.table-wrap td{padding:15px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.table-wrap thead th{background:rgba(37,99,235,.2);color:#e0f2fe;font-weight:800;font-size:.85rem;letter-spacing:.03em}
.table-wrap tbody tr:last-child td{border-bottom:none}
.table-wrap tbody tr:hover{background:rgba(56,189,248,.05)}
.col-good{color:#a7f3d0}
.col-bad{color:#fecdd3}
/* ============ STEPS ============ */
.steps{display:grid;gap:0;counter-reset:step}
.step{
  display:grid;
  grid-template-columns:74px minmax(0,1fr);
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.step:first-child{border-top:1px solid var(--line)}
.step-idx{
  font-size:1.6rem;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--accent);
  padding-top:4px;
}
.step h3{margin-bottom:6px;font-size:1.05rem}
.step p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.65}
/* ============ SCENARIOS ============ */
.scenario{
  border-left:2px solid var(--line-strong);
  padding:0 0 0 22px;
  margin-bottom:28px;
}
.scenario:last-child{margin-bottom:0}
.scenario h3{margin-bottom:8px;font-size:1.05rem;color:#e0f2fe}
.scenario p{color:var(--muted);font-size:.94rem;margin-bottom:8px;line-height:1.65}
.scenario .lesson{font-size:.88rem;color:#fde68a;margin:0}
.scenario .lesson i{margin-right:6px}
/* ============ RISK RANK ============ */
.risk-row{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) 62px;
  gap:18px;
  align-items:center;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.risk-row:first-child{border-top:1px solid var(--line)}
.risk-name{font-size:.95rem;font-weight:600;color:#e6eefb}
.risk-bar{height:8px;border-radius:999px;background:rgba(148,163,184,.18);overflow:hidden}
.risk-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--warn),var(--danger))}
.risk-val{font-weight:800;font-size:.9rem;color:#fecdd3;text-align:right}
/* ============ CHECKLIST ============ */
.checklist{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}
.checklist li{
  display:grid;
  grid-template-columns:24px minmax(0,1fr);
  gap:12px;
  padding:14px 0;
  border-bottom:1px dashed rgba(96,165,250,.18);
  font-size:.94rem;
  color:#cbd5e1;
  margin:0;
}
.checklist li i{color:var(--ok);margin-top:4px;font-size:.85rem}
/* ============ FAQ ============ */
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(11,26,53,.9)}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:18px 22px;
  font-weight:700;
  font-size:.98rem;
  color:#e6eefb;
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:.78rem;
  color:var(--accent);
  flex:0 0 auto;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:#fff}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:.94rem;line-height:1.7}
.faq-answer p{margin:0}
/* ============ CTA BLOCK ============ */
.cta-block{
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:38px 34px;
  background:
    radial-gradient(600px 300px at 88% 10%,rgba(56,189,248,.22),transparent 62%),
    linear-gradient(150deg,rgba(37,99,235,.28),rgba(8,18,41,.9));
  text-align:center;
}
.cta-block h2{margin-bottom:12px}
.cta-block p{color:#cbd5e1;max-width:640px;margin:0 auto 22px;font-size:.98rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.ref-list{
  list-style:none;
  margin:30px 0 0;
  padding:24px 0 0;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  text-align:left;
}
.ref-list li{font-size:.88rem;color:var(--muted);display:flex;gap:10px;margin:0}
.ref-list li i{color:var(--accent);margin-top:4px}
.ref-list strong{display:block;color:#e6eefb;font-size:.92rem}
/* ============ FAB ============ */
.fab{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:50;
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:56px;
  padding:12px 18px;
  border-radius:999px;
  font-size:.85rem;
  font-weight:700;
  color:#e0f2fe;
  background:
    linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)) padding-box,
    linear-gradient(135deg,var(--ok),var(--primary)) border-box;
  border:1.5px solid transparent;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.85;
  transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px);box-shadow:0 0 30px rgba(56,189,248,.7)}
.fab:active{transform:scale(.96)}
.fab i{font-size:1.05rem;color:var(--accent)}
.fab .fab-dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--danger);
  box-shadow:0 0 10px var(--danger);
  animation:fabPulse 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.82)}}
/* ============ FOOTER ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:20px;
  padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(8,18,41,.9),rgba(3,7,18,1));
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:34px;
  padding-bottom:34px;
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-col p{color:var(--muted);font-size:.9rem;line-height:1.65;margin:0}
.footer-col h4{font-size:.95rem;margin-bottom:14px;color:#e6eefb}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:9px}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:var(--accent);padding-left:3px}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:.88rem;margin-bottom:10px;line-height:1.55}
.footer-contact i{color:var(--accent);margin-top:4px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:space-between;
  align-items:center;
  padding-top:22px;
  color:var(--muted-2);
  font-size:.83rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:#cbd5e1;
  font-size:.8rem;
}
.age-badge i{color:var(--warn)}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero{padding:132px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .article-layout{grid-template-columns:1fr;gap:34px;padding-top:44px}
  .article-main{max-width:none}
  .article-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .checklist{grid-template-columns:1fr}
  .ref-list{grid-template-columns:1fr 1fr}
  .nav-toggle{display:grid;place-items:center}
  .main-nav{
    position:absolute;
    top:calc(100% + 1px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:14px 20px 20px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 22px 40px rgba(2,6,23,.7);
    display:none;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px;font-size:.95rem}
}
@media (max-width:768px){
  .hero{padding:120px 0 46px}
  .section{padding:48px 0}
  .article-block{margin-bottom:42px}
  .sign-item{grid-template-columns:48px minmax(0,1fr);gap:16px}
  .sign-num{width:48px;height:48px;font-size:1rem}
  .sign-item .tag{grid-column:2}
  .step{grid-template-columns:56px minmax(0,1fr);gap:16px}
  .step-idx{font-size:1.35rem}
  .risk-row{grid-template-columns:1fr;gap:10px}
  .risk-val{text-align:left}
  .cta-block{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text strong{font-size:.92rem}
  .brand-text em{font-size:.64rem;letter-spacing:.1em}
  .header-actions{gap:6px}
  .btn-ghost{padding:8px 10px;font-size:.82rem}
  .btn-solid{padding:9px 12px;font-size:.82rem}
  .btn-solid i{display:none}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-main,.hero-cta .btn-line{justify-content:center}
  .ref-list{grid-template-columns:1fr}
  .fab{left:12px;bottom:88px;padding:10px 14px;font-size:.8rem}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(11,26,53,.72);
  --surface-2:rgba(8,18,41,.9);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#38bdf8;
  --holo:#60a5fa;
  --danger:#f43f5e;
  --warn:#fbbf24;
  --ok:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(96,165,250,.35);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 20px 45px rgba(2,6,23,.65);
  --glow:0 0 26px rgba(56,189,248,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(96,165,250,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button,input{font-family:inherit}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.015em;color:var(--text)}
p{margin:0 0 14px}
.container{max-width:var(--maxw);padding-left:20px;padding-right:20px;position:relative;z-index:1}
::selection{background:rgba(56,189,248,.35);color:#fff}

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(3,7,18,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#03121f;
  font-size:18px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08);border-color:var(--line)}
.nav-link.active{
  color:#e0f2fe;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border-color:var(--line-strong);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  color:var(--accent);
  font-weight:700;
  font-size:.9rem;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#bae6fd;border-color:var(--accent)}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  color:#03121f;
  font-weight:800;
  font-size:.9rem;
  padding:10px 18px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7);filter:brightness(1.06);color:#03121f}
.btn-solid:active{transform:translateY(0) scale(.98)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);
  color:var(--accent);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(56,189,248,.18)}
a:focus-visible,button:focus-visible,.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:148px 0 72px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.32;
  z-index:-2;
  transform:scale(1.03);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 480px at 10% 6%,rgba(37,99,235,.45),transparent 65%),
    radial-gradient(720px 420px at 90% 18%,rgba(56,189,248,.26),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.62) 0%,rgba(3,7,18,.94) 72%,var(--bg) 100%);
  z-index:-1;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:48px;
  align-items:center;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  padding:7px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(56,189,248,.08);
  margin-bottom:20px;
}
.chip i{color:var(--accent)}
.hero h1{
  font-size:clamp(1.8rem,3.5vw,2.95rem);
  line-height:1.2;
  margin:0 0 18px;
  text-wrap:balance;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  color:#cbd5e1;
  font-size:1.02rem;
  line-height:1.7;
  max-width:640px;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:800;
  font-size:.96rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 12px 30px rgba(37,99,235,.42);
  transition:transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(56,189,248,.55);color:#03121f}
.btn-main:active{transform:translateY(-1px) scale(.985)}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:700;
  font-size:.96rem;
  color:#e2e8f0;
  border:1px solid var(--line-strong);
  border-radius:10px;
  background:rgba(8,18,41,.6);
  transition:all .22s ease;
}
.btn-line:hover{border-color:var(--accent);background:rgba(56,189,248,.12);color:#e0f2fe;transform:translateY(-2px)}
.hero-note{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  color:var(--muted);
  font-size:.86rem;
}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note i{color:var(--accent)}
.hero-poster{
  position:relative;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--surface-2);
  box-shadow:var(--shadow);
}
.hero-poster img{width:100%;height:340px;object-fit:cover;opacity:.9}
.hero-poster::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.1) 0%,rgba(3,7,18,.86) 100%);
}
.poster-badge{
  position:absolute;
  top:16px;left:16px;
  z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.06em;
  padding:7px 13px;
  border-radius:999px;
  color:#fff;
  background:rgba(244,63,94,.9);
  box-shadow:0 0 20px rgba(244,63,94,.45);
}
.poster-strip{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border-top:1px solid var(--line);
}
.poster-strip div{
  background:rgba(3,7,18,.86);
  padding:14px 18px;
}
.poster-strip strong{display:block;font-size:1.15rem;color:var(--accent)}
.poster-strip span{font-size:.8rem;color:var(--muted)}

/* ============ SECTION BASE ============ */
.section{padding:70px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.6),rgba(3,7,18,.15));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.sec-head{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:34px;
}
.sec-main{max-width:730px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:10px;
}
.sec-title{font-size:clamp(1.45rem,2.4vw,2.05rem);line-height:1.28;margin:0 0 12px}
.sec-desc{color:var(--muted);margin:0;max-width:700px}
.sec-aside{
  color:var(--muted);
  font-size:.88rem;
  border-left:2px solid var(--line-strong);
  padding-left:16px;
  max-width:280px;
}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}

/* ============ STATS ============ */
.stat-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(8,18,41,.72);
  padding:26px 0;
}
.stat-item{
  padding:10px 6px;
  border-left:1px solid var(--line);
  height:100%;
}
.stat-item:first-child{border-left:none}
.stat-value{font-size:1.5rem;font-weight:800;color:var(--accent);line-height:1.2}
.stat-label{font-size:.85rem;color:var(--muted)}

/* ============ SIGNAL CARDS ============ */
.signal-featured{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--surface);
  margin-bottom:24px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.signal-featured:hover{border-color:var(--line-strong);box-shadow:var(--glow)}
.signal-featured img{height:100%;min-height:280px;object-fit:cover}
.signal-body{padding:30px}
.signal-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  font-weight:800;
  font-size:.95rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  margin-bottom:16px;
}
.signal-body h3{font-size:1.22rem;margin:0 0 12px;line-height:1.35}
.signal-body p{color:#cbd5e1;font-size:.95rem}
.signal-fix{
  display:flex;gap:10px;
  margin-top:16px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  background:rgba(56,189,248,.08);
  border:1px solid var(--line);
  font-size:.9rem;
  color:#bae6fd;
}
.signal-fix i{margin-top:3px;color:var(--accent)}
.signal-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.signal-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.signal-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.signal-card img{height:170px;width:100%;object-fit:cover}
.signal-card .signal-body{padding:24px}
.signal-card h3{font-size:1.05rem;margin:0 0 10px;line-height:1.4}
.signal-card p{color:var(--muted);font-size:.9rem;margin-bottom:0}

/* ============ PHASES + RISK ============ */
.split-2{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:40px;
  align-items:start;
}
.phase-list{position:relative;padding-left:26px;margin:0}
.phase-list::before{
  content:"";
  position:absolute;
  left:6px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--accent),rgba(37,99,235,.15));
}
.phase{
  position:relative;
  padding:0 0 26px 0;
}
.phase:last-child{padding-bottom:0}
.phase::before{
  content:"";
  position:absolute;
  left:-26px;top:6px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
  box-shadow:0 0 12px rgba(56,189,248,.6);
}
.phase h3{font-size:1.05rem;margin:0 0 8px}
.phase p{color:var(--muted);font-size:.93rem;margin:0}
.risk-panel{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface-2);
  padding:26px;
}
.risk-panel h3{font-size:1.05rem;margin:0 0 18px}
.risk-row{margin-bottom:16px}
.risk-row:last-child{margin-bottom:0}
.risk-top{display:flex;justify-content:space-between;gap:12px;font-size:.88rem;margin-bottom:7px}
.risk-top span:last-child{color:var(--accent);font-weight:700}
.risk-bar{height:7px;border-radius:999px;background:rgba(148,163,184,.18);overflow:hidden}
.risk-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent))}

/* ============ CASES ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.case-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.case-card:hover{border-color:var(--line-strong);box-shadow:var(--glow)}
.case-card img{height:200px;width:100%;object-fit:cover}
.case-body{padding:26px}
.case-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  padding:5px 11px;
  border-radius:999px;
  background:rgba(244,63,94,.14);
  color:#fda4af;
  border:1px solid rgba(244,63,94,.35);
  margin-bottom:14px;
}
.case-body h3{font-size:1.08rem;margin:0 0 12px;line-height:1.4}
.case-body p{color:var(--muted);font-size:.92rem}
.case-result{
  margin-top:16px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:.9rem;
  color:#fcd34d;
  display:flex;gap:10px;
}
.case-result i{margin-top:3px}

/* ============ STEPS ============ */
.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.step{
  display:flex;
  gap:18px;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(8,18,41,.6);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.step-num{
  flex:0 0 auto;
  font-size:1.35rem;
  font-weight:800;
  color:var(--accent);
  line-height:1;
  min-width:44px;
}
.step h3{font-size:1.02rem;margin:0 0 8px}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* ============ COMPARE ============ */
.compare{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface-2);
}
.compare-row{
  display:grid;
  grid-template-columns:1.05fr 1fr 1fr;
  gap:1px;
  background:var(--line);
}
.compare-row > div{background:rgba(8,18,41,.92);padding:16px 20px;font-size:.9rem}
.compare-head > div{
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  background:rgba(11,26,53,.95);
}
.compare-row .c-label{color:#e2e8f0;font-weight:600}
.compare-row .c-good{color:#7dd3fc}
.compare-row .c-bad{color:#fda4af}
.compare-row .c-good i,.compare-row .c-bad i{margin-right:8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(8,18,41,.6);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.open{border-color:var(--line-strong);box-shadow:0 0 18px rgba(56,189,248,.16)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 20px;
  background:transparent;
  border:none;
  color:var(--text);
  font-size:1rem;
  font-weight:700;
  text-align:left;
  cursor:pointer;
  line-height:1.5;
}
.faq-q i{color:var(--accent);transition:transform .25s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 20px;margin:0;color:var(--muted);font-size:.94rem}

/* ============ POST LIST ============ */
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow);color:inherit}
.post-tag{
  align-self:flex-start;
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:#bae6fd;
  padding:5px 11px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.1);
  margin-bottom:14px;
}
.post-card h3{font-size:1.02rem;line-height:1.45;margin:0 0 10px}
.post-card p{color:var(--muted);font-size:.9rem;margin:0 0 16px}
.post-meta{margin-top:auto;font-size:.82rem;color:var(--muted-2);display:flex;align-items:center;gap:8px}
.post-meta i{color:var(--accent)}
.list-empty{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  padding:26px;
  color:var(--muted);
  text-align:center;
}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:44px;
  background:
    radial-gradient(700px 320px at 12% 10%,rgba(37,99,235,.32),transparent 66%),
    radial-gradient(600px 300px at 90% 90%,rgba(56,189,248,.2),transparent 62%),
    rgba(8,18,41,.92);
  overflow:hidden;
  text-align:center;
}
.cta-band h2{font-size:clamp(1.4rem,2.3vw,1.95rem);margin:0 0 14px;line-height:1.3}
.cta-band p{color:#cbd5e1;max-width:720px;margin:0 auto 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-meta{
  margin-top:24px;
  display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:center;
  font-size:.85rem;color:var(--muted);
}
.cta-meta span{display:inline-flex;align-items:center;gap:8px}
.cta-meta i{color:var(--accent)}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(3,7,18,.95);
  padding:56px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-col p{color:var(--muted);font-size:.9rem;max-width:340px}
.footer-col h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:#e2e8f0;margin:0 0 16px}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{color:var(--muted);font-size:.9rem;margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--accent);margin-top:4px}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  font-size:.83rem;
  color:var(--muted-2);
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--muted);
  font-size:.78rem;
}
.age-badge i{color:var(--warn)}

/* ============ FAB ============ */
.fab-support{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:50;
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:56px;
  padding:12px 20px;
  border-radius:999px;
  font-size:.84rem;
  font-weight:700;
  color:#e0f2fe;
  background:
    linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)) padding-box,
    linear-gradient(135deg,var(--accent),var(--primary)) border-box;
  border:1px solid transparent;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 0 20px rgba(56,189,248,.45);
  opacity:.78;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab-support:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 32px rgba(56,189,248,.7);color:#fff}
.fab-support:active{transform:translateY(0) scale(.96);box-shadow:0 0 16px rgba(236,72,153,.6)}
.fab-support i{font-size:1.1rem;color:var(--accent)}
.fab-support .fab-dot{
  position:absolute;
  top:8px;right:12px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--danger);
  box-shadow:0 0 10px rgba(244,63,94,.9);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(56,189,248,.35)}
  50%{box-shadow:0 0 30px rgba(56,189,248,.7)}
}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .main-nav{gap:2px}
  .nav-link{padding:8px 10px;font-size:.88rem}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .hero{padding:126px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-poster img{height:280px}
  .split-2{grid-template-columns:1fr;gap:32px}
  .signal-featured{grid-template-columns:1fr}
  .signal-featured img{min-height:220px;height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .main-nav{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px 20px 20px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line);
    display:none;
    margin-left:0;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px;font-size:.95rem}
  .nav-toggle{display:grid;place-items:center}
  .header-actions{margin-left:auto}
  .compare-row{grid-template-columns:1fr;gap:1px}
  .compare-row .c-label{background:rgba(11,26,53,.95)}
  .compare-head{display:none}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .signal-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start}
  .sec-aside{max-width:100%}
  .stat-item{border-left:none;border-top:1px solid var(--line);padding-top:16px;margin-top:8px}
  .stat-item:first-child{border-top:none;margin-top:0}
  .cta-band{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-col p{max-width:100%}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text strong{font-size:.92rem}
  .brand-text em{font-size:.64rem;letter-spacing:.1em}
  .brand-mark{width:38px;height:38px;font-size:16px}
  .header-actions .btn-ghost{display:none}
  .hero h1{font-size:1.62rem}
  .hero-lead{font-size:.95rem}
  .btn-main,.btn-line{padding:12px 18px;font-size:.9rem;width:100%;justify-content:center}
  .hero-cta{flex-direction:column}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%}
  .fab-support{padding:10px 16px;font-size:.78rem;min-height:52px}
  .poster-strip strong{font-size:1rem}
  .signal-body{padding:20px}
  .case-body{padding:20px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(11,26,53,.72);
  --surface-2:rgba(8,18,41,.9);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#38bdf8;
  --holo:#60a5fa;
  --danger:#f43f5e;
  --warn:#fbbf24;
  --ok:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(96,165,250,.35);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 20px 45px rgba(2,6,23,.65);
  --glow:0 0 26px rgba(56,189,248,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(96,165,250,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button,input{font-family:inherit}
h1,h2,h3,h4{font-weight:800;line-height:1.25;letter-spacing:-.015em;margin:0 0 14px}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:1}

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(3,7,18,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#03121f;
  font-size:18px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08);border-color:var(--line)}
.nav-link.active{
  color:#e0f2fe;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border-color:var(--line-strong);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  color:var(--accent);
  font-weight:700;
  font-size:.9rem;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#bae6fd;border-color:var(--accent)}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  color:#03121f;
  font-weight:800;
  font-size:.9rem;
  padding:10px 18px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7);filter:brightness(1.06);color:#03121f}
.btn-solid:active{transform:translateY(0) scale(.98)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);
  color:var(--accent);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(56,189,248,.18)}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:150px 0 68px;
  overflow:hidden;
  isolation:isolate;
  z-index:1;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.32;
  z-index:-2;
  transform:scale(1.03);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 480px at 50% 0%,rgba(37,99,235,.42),transparent 66%),
    radial-gradient(700px 420px at 88% 30%,rgba(56,189,248,.22),transparent 62%),
    linear-gradient(180deg,rgba(3,7,18,.6) 0%,rgba(3,7,18,.94) 72%,var(--bg) 100%);
  z-index:-1;
}
.hero-inner{max-width:900px;margin:0 auto;text-align:center}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  padding:7px 15px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(56,189,248,.08);
  margin-bottom:20px;
}
.chip i{color:var(--accent)}
.hero h1{
  font-size:clamp(1.9rem,3.8vw,3rem);
  line-height:1.2;
  margin-bottom:18px;
  text-wrap:balance;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  color:#cbd5e1;
  font-size:1.04rem;
  line-height:1.7;
  max-width:760px;
  margin:0 auto 28px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:10px;
  max-width:680px;
  margin:0 auto;
  padding:8px 8px 8px 22px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(8,18,41,.92);
  box-shadow:var(--shadow);
}
.search-box i{color:var(--accent);font-size:.95rem}
.search-box input{
  flex:1;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  color:var(--text);
  font-size:.95rem;
  padding:8px 0;
}
.search-box input::placeholder{color:var(--muted-2)}
.search-box button{
  border:0;
  cursor:pointer;
  font-weight:800;
  font-size:.9rem;
  color:#03121f;
  padding:11px 22px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.search-box button:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7)}
.search-box button:active{transform:scale(.97)}
.hot-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
  margin-top:20px;
}
.hot-chip{
  font-size:.82rem;
  font-weight:600;
  color:#cbd5e1;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(56,189,248,.06);
  transition:all .2s ease;
}
.hot-chip:hover{color:#e0f2fe;border-color:var(--line-strong);background:rgba(56,189,248,.14)}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:44px;
  padding-top:32px;
  border-top:1px solid var(--line);
  text-align:left;
}
.stat-item b{
  display:block;
  font-size:1.6rem;
  font-weight:800;
  line-height:1.2;
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-item span{font-size:.86rem;color:var(--muted);line-height:1.5;display:block}

/* ============ SECTION BASE ============ */
.section{padding:76px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,.96));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.73rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}
.section h2{font-size:clamp(1.45rem,2.4vw,2.05rem);margin-bottom:14px;max-width:820px}
.section-sub{color:var(--muted);max-width:760px;font-size:1rem}
.split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:44px;
  align-items:start;
}
.media-frame{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--surface-2);
}
.media-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.media-card{
  margin-top:18px;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.media-card i{color:var(--accent);font-size:1.1rem;margin-top:3px}
.media-card p{margin:0;font-size:.92rem;color:var(--muted)}
.media-card strong{color:var(--text)}

/* risk list */
.risk-list{display:grid;gap:12px;margin-top:8px}
.risk-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  border:1px solid rgba(244,63,94,.22);
  border-radius:var(--radius-sm);
  background:rgba(244,63,94,.05);
  transition:border-color .2s ease,transform .2s ease;
}
.risk-item:hover{border-color:rgba(244,63,94,.45);transform:translateX(3px)}
.risk-item i{color:var(--danger);margin-top:4px}
.risk-item span{font-size:.94rem;color:#e2e8f0}
.note-box{
  margin-top:22px;
  padding:18px 20px;
  border-left:3px solid var(--accent);
  background:rgba(56,189,248,.06);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:.94rem;
  color:#cbd5e1;
}

/* checklist */
.check-list{display:grid;gap:16px;margin-top:26px}
.check-item{
  display:grid;
  grid-template-columns:58px 1fr;
  gap:20px;
  padding:22px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.check-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 18px 34px rgba(2,6,23,.6)}
.check-num{
  width:52px;height:52px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:1.05rem;
  color:#03121f;
  background:linear-gradient(140deg,var(--accent),var(--primary));
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
}
.check-item h3{font-size:1.02rem;margin-bottom:6px}
.check-item p{font-size:.94rem;color:var(--muted);margin:0}

/* steps */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:28px;
}
.step{
  position:relative;
  padding:26px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(11,26,53,.88),rgba(8,18,41,.55));
  transition:transform .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-idx{
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent);
  display:block;
  margin-bottom:12px;
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted);margin:0}

/* metrics */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:28px;
}
.metric-card{
  padding:24px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface-2);
}
.metric-card i{color:var(--accent);font-size:1.15rem;margin-bottom:12px;display:block}
.metric-value{
  font-size:1.55rem;
  font-weight:800;
  line-height:1.2;
  margin-bottom:8px;
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.metric-label{font-size:.89rem;color:var(--muted)}

/* testimonials */
.quote-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:28px;
}
.quote-card{
  padding:26px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  display:flex;
  flex-direction:column;
  gap:16px;
}
.quote-card i{color:var(--accent);font-size:1.2rem}
.quote-text{font-size:.95rem;color:#e2e8f0;font-style:italic;margin:0}
.quote-author{font-size:.85rem;color:var(--muted);font-weight:600}
.quote-author b{color:var(--text);display:block;font-style:normal}

/* audience */
.audience-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
  margin-top:28px;
}
.audience-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface-2);
  transition:border-color .2s ease,transform .2s ease;
}
.audience-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.audience-item i{color:var(--accent);font-size:1.15rem;margin-top:4px}
.audience-item h3{font-size:.99rem;margin-bottom:6px}
.audience-item p{margin:0;font-size:.91rem;color:var(--muted)}

/* compare */
.compare{
  margin-top:28px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface-2);
}
.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr}
.compare-row>div{padding:17px 20px;border-bottom:1px solid var(--line);font-size:.93rem}
.compare-row:last-child>div{border-bottom:0}
.compare-head>div{
  background:rgba(37,99,235,.16);
  font-size:.76rem;
  font-weight:800;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:#bae6fd;
}
.compare-key{color:var(--text);font-weight:600}
.compare-good{color:#a7f3d0}
.compare-bad{color:#fecdd3}

/* faq */
.faq{display:grid;gap:12px;margin-top:26px;max-width:940px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--surface);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  font-weight:700;
  font-size:.98rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:.78rem;
  color:var(--accent);
  flex:0 0 auto;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{padding:0 22px 20px;margin:0;color:var(--muted);font-size:.94rem}

/* category matrix */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:28px;
}
.cat-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface-2);
  color:var(--text);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 20px 40px rgba(2,6,23,.65);color:var(--text)}
.cat-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cat-body{padding:22px}
.cat-tag{
  display:inline-block;
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  border:1px solid var(--line-strong);
  border-radius:999px;
  padding:4px 11px;
  margin-bottom:12px;
  background:rgba(56,189,248,.08);
}
.cat-body h3{font-size:1.02rem;margin-bottom:8px}
.cat-body p{font-size:.9rem;color:var(--muted);margin:0 0 14px}
.cat-more{font-size:.86rem;font-weight:700;color:var(--accent)}
.cat-more i{font-size:.72rem;margin-left:5px}
.cat-card.current{border-color:var(--line-strong);box-shadow:inset 0 0 0 1px rgba(56,189,248,.2)}

/* cta band */
.cta-band{
  margin-top:44px;
  padding:44px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  background:
    radial-gradient(620px 320px at 12% 8%,rgba(37,99,235,.34),transparent 70%),
    linear-gradient(160deg,rgba(11,26,53,.95),rgba(3,7,18,.95));
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:32px;
  align-items:center;
}
.cta-band h2{font-size:clamp(1.35rem,2.3vw,1.85rem);margin-bottom:12px}
.cta-band p{color:var(--muted);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:800;
  font-size:.95rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 12px 30px rgba(37,99,235,.42);
  transition:transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(56,189,248,.55);color:#03121f}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:700;
  font-size:.95rem;
  color:#e2e8f0;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);
  background:rgba(56,189,248,.05);
  transition:all .22s ease;
}
.btn-line:hover{background:rgba(56,189,248,.14);border-color:var(--accent);color:#e0f2fe}

/* ============ FAB ============ */
.support-fab{
  position:fixed;
  left:16px;
  bottom:96px;
  z-index:50;
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:52px;
  padding:12px 20px 12px 16px;
  border-radius:999px;
  border:1px solid transparent;
  background:
    linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)) padding-box,
    linear-gradient(120deg,#38bdf8,#2563eb) border-box;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:#e2e8f0;
  font-size:.83rem;
  font-weight:700;
  opacity:.78;
  box-shadow:0 0 20px rgba(6,182,212,.42);
  transition:all .25s ease;
}
.support-fab i{color:var(--accent);font-size:1rem}
.support-fab:hover{opacity:1;color:#fff;transform:translateY(-2px);box-shadow:0 0 30px rgba(6,182,212,.66)}
.support-fab:active{transform:scale(.96)}
.support-fab .dot{
  position:absolute;
  top:-2px;right:-2px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--danger);
  box-shadow:0 0 0 3px rgba(244,63,94,.24);
  animation:fabPulse 1.7s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.78);opacity:.6}}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:0;
  padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.98));
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:34px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-col p{font-size:.91rem;color:var(--muted);margin:0}
.footer-col h4{
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:#bae6fd;
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:.92rem;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:grid;gap:12px}
.footer-contact li{font-size:.91rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--accent);margin-top:4px}
.footer-bottom{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  font-size:.84rem;
  color:var(--muted-2);
}
.age-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  color:#bae6fd;
  font-weight:600;
  background:rgba(56,189,248,.07);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:32px}
  .steps,.metric-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .main-nav{
    position:fixed;
    top:74px;
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:16px 20px 22px;
    background:rgba(3,7,18,.97);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 16px;border-radius:var(--radius-sm);font-size:.95rem}
  .nav-toggle{display:grid;place-items:center}
  .header-inner{gap:12px}
}
@media (max-width:768px){
  .hero{padding:128px 0 56px}
  .section{padding:60px 0}
  .stat-strip{grid-template-columns:1fr 1fr;gap:22px 18px}
  .audience-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr}
  .compare-head{display:none}
  .compare-good::before{
    content:attr(data-label) ": ";
    color:var(--ok);
    font-weight:700;
  }
  .compare-bad::before{
    content:attr(data-label) ": ";
    color:var(--danger);
    font-weight:700;
  }
  .check-item{grid-template-columns:1fr;gap:14px}
  .search-box{flex-wrap:wrap;border-radius:var(--radius);padding:14px}
  .search-box input{width:100%;flex:1 1 100%;padding:6px 4px}
  .search-box button{width:100%;justify-content:center;border-radius:var(--radius-sm)}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .brand-text em{display:none}
  .brand-text strong{font-size:.88rem}
  .brand-mark{width:38px;height:38px;font-size:16px}
  .btn-ghost{padding:8px 10px;font-size:.78rem;border-radius:7px}
  .btn-solid{padding:8px 12px;font-size:.78rem;clip-path:none;border-radius:7px}
  .btn-solid i{display:none}
  .nav-toggle{width:38px;height:38px;font-size:15px}
  .hero h1{font-size:1.6rem}
  .stat-strip{grid-template-columns:1fr}
  .steps,.metric-grid,.cat-grid{grid-template-columns:1fr}
  .cta-band{padding:26px}
  .btn-main,.btn-line{width:100%;justify-content:center}
  .support-fab{left:12px;bottom:88px;padding:11px 16px;font-size:.78rem}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(11,26,53,.72);
  --surface-2:rgba(8,18,41,.9);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#38bdf8;
  --holo:#60a5fa;
  --danger:#f43f5e;
  --warn:#fbbf24;
  --ok:#22d3ee;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(96,165,250,.35);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 20px 45px rgba(2,6,23,.65);
  --glow:0 0 26px rgba(56,189,248,.35);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(96,165,250,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
h1,h2,h3,h4{margin:0 0 .6rem;font-weight:800;letter-spacing:-.015em}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{max-width:var(--maxw);padding-left:20px;padding-right:20px;position:relative;z-index:1}

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(3,7,18,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#03121f;
  font-size:18px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.08);border-color:var(--line)}
.nav-link.active{
  color:#e0f2fe;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border-color:var(--line-strong);
  box-shadow:inset 0 0 0 1px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost{
  color:var(--accent);
  font-weight:700;
  font-size:.9rem;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(56,189,248,.1);color:#bae6fd;border-color:var(--accent)}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  color:#03121f;
  font-weight:800;
  font-size:.9rem;
  padding:10px 18px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  border:none;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  box-shadow:0 0 18px rgba(37,99,235,.5);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(56,189,248,.7);filter:brightness(1.06);color:#03121f}
.btn-solid:active{transform:translateY(0) scale(.98)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(56,189,248,.08);
  color:var(--accent);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(56,189,248,.18)}

/* ============ HERO (slanted slab) ============ */
.hero-cat{position:relative;padding:142px 0 82px;overflow:hidden;isolation:isolate}
.hero-cat-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.3;z-index:-3;
}
.hero-cat::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(900px 520px at 8% 0%,rgba(37,99,235,.42),transparent 62%),
    radial-gradient(720px 430px at 94% 16%,rgba(56,189,248,.22),transparent 60%),
    linear-gradient(180deg,rgba(3,7,18,.72) 0%,rgba(3,7,18,.95) 68%,var(--bg) 100%);
  z-index:-2;
}
.hero-slash{
  position:absolute;
  right:-8%;top:6%;width:64%;height:88%;
  background:linear-gradient(150deg,rgba(37,99,235,.34),rgba(56,189,248,.08) 55%,transparent 100%);
  clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);
  border-left:1px solid rgba(96,165,250,.22);
  z-index:-1;
}
.hero-slash::after{
  content:"";
  position:absolute;left:18%;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(56,189,248,.55),transparent);
}
.hero-cat-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:46px;align-items:center}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:#bae6fd;
  padding:7px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(56,189,248,.08);
  margin-bottom:20px;
}
.chip i{color:var(--accent)}
.hero-cat h1{
  font-size:clamp(1.9rem,3.7vw,3rem);
  line-height:1.18;
  margin-bottom:18px;
  text-wrap:balance;
}
.hero-cat h1 .hl{
  background:linear-gradient(120deg,var(--accent),#a5b4fc);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:1.03rem;line-height:1.7;max-width:640px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.btn-main{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;
  font-weight:800;font-size:.96rem;
  color:#03121f;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 12px 30px rgba(37,99,235,.42);
  transition:transform .22s ease,box-shadow .22s ease;
  border:none;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(56,189,248,.55);color:#03121f}
.btn-main:active{transform:translateY(-1px) scale(.985)}
.hero-panel{
  background:var(--surface);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:26px 24px 22px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
}
.hero-panel h3{
  font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;
  color:#bae6fd;margin-bottom:16px;font-weight:700;
}
.hero-panel ul{display:grid;gap:13px}
.hero-panel li{display:flex;gap:11px;font-size:.92rem;color:#dbeafe;line-height:1.55}
.hero-panel li i{color:var(--ok);margin-top:4px;flex:0 0 auto}
.hero-panel .panel-note{
  margin:18px 0 0;padding-top:15px;border-top:1px dashed var(--line);
  font-size:.84rem;color:var(--muted);
}

/* ============ SECTIONS ============ */
.section{padding:78px 0;position:relative;z-index:1}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,41,.62),rgba(3,7,18,.25));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{
  display:inline-block;font-size:.74rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.section-title{font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.26}
.section-sub{color:var(--muted);font-size:1rem;line-height:1.7;max-width:700px;margin:0}

/* risk grid */
.risk-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  border-top:1px solid var(--line);
}
.risk-item{
  display:flex;gap:18px;
  padding:26px 30px 26px 0;
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
}
.risk-item:nth-child(2n){border-right:none;padding-right:0;padding-left:30px}
.risk-num{
  font-size:1.55rem;font-weight:800;line-height:1.1;flex:0 0 auto;
  background:linear-gradient(140deg,var(--accent),var(--primary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.risk-item h3{font-size:1.02rem;margin-bottom:6px}
.risk-item p{color:var(--muted);font-size:.93rem;margin:0;line-height:1.65}

/* split */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(3,7,18,.6));
}
.media-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:#e0f2fe;background:rgba(3,7,18,.72);
  border:1px solid var(--line-strong);border-radius:999px;padding:7px 13px;
}
.layer-list{display:grid;gap:22px}
.layer-item{display:flex;gap:16px;padding-bottom:22px;border-bottom:1px dashed var(--line)}
.layer-item:last-child{border-bottom:none;padding-bottom:0}
.layer-icon{
  width:46px;height:46px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:12px;background:rgba(56,189,248,.1);
  border:1px solid var(--line-strong);color:var(--accent);font-size:18px;
}
.layer-item h3{font-size:1.02rem;margin-bottom:6px}
.layer-item p{color:var(--muted);font-size:.93rem;margin:0;line-height:1.65}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.step{position:relative;padding-top:28px;border-top:2px solid var(--line-strong)}
.step::before{
  content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 14px rgba(56,189,248,.85);
}
.step-num{
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:9px;
}
.step h3{font-size:.98rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.87rem;margin:0;line-height:1.6}

/* channels */
.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.channel-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 20px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.channel-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.7rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  padding:5px 10px;border-radius:999px;
  background:rgba(56,189,248,.12);color:#bae6fd;
  border:1px solid var(--line-strong);margin-bottom:14px;
}
.channel-card h3{font-size:1.05rem;margin-bottom:12px}
.channel-meta{display:grid;gap:8px;margin-bottom:13px}
.channel-meta div{display:flex;gap:8px;font-size:.86rem;color:var(--muted)}
.channel-meta i{color:var(--accent);margin-top:4px;flex:0 0 auto}
.channel-card p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.6}

/* flags */
.flag-list{display:grid;gap:13px}
.flag-item{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(244,63,94,.07);border:1px solid rgba(244,63,94,.26);
  transition:background .2s ease,border-color .2s ease;
}
.flag-item:hover{background:rgba(244,63,94,.13);border-color:rgba(244,63,94,.45)}
.flag-item i{color:var(--danger);margin-top:4px;flex:0 0 auto}
.flag-item span{font-size:.93rem;color:#e2e8f0;line-height:1.62}

/* checklist */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.check-item{
  display:flex;gap:12px;padding:16px 18px;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-2);
  transition:border-color .2s ease,transform .2s ease;
}
.check-item:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.check-item i{color:var(--ok);margin-top:4px;flex:0 0 auto}
.check-item span{font-size:.92rem;color:#dbeafe;line-height:1.62}

/* quotes */
.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius);padding:26px 24px;
}
.quote-card p{color:#e2e8f0;font-size:.96rem;line-height:1.72;font-style:italic;margin-bottom:14px}
.quote-author{font-size:.85rem;color:var(--muted);font-weight:600}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.07)}
.news-body{padding:18px 18px 20px}
.news-tag{
  display:inline-block;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:9px;
}
.news-title{font-size:1rem;line-height:1.45;margin-bottom:8px}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--accent)}
.news-excerpt{font-size:.88rem;color:var(--muted);line-height:1.6;margin-bottom:12px}
.news-meta{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--muted-2)}
.news-meta i{color:var(--accent)}
.empty-note{
  padding:26px 24px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  color:var(--muted);font-size:.95rem;background:var(--surface-2);margin:0;
}
.list-more-wrap{margin-top:30px}
.list-more{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;font-weight:700;font-size:.92rem;color:#e0f2fe;
  border:1px solid var(--line-strong);border-radius:999px;
  background:rgba(56,189,248,.08);transition:all .22s ease;
}
.list-more:hover{background:rgba(56,189,248,.18);border-color:var(--accent);color:#fff;transform:translateX(3px)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface-2);overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 20px;
  font-weight:700;font-size:.98rem;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:1.25rem;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 20px 20px;margin:0;color:var(--muted);font-size:.93rem;line-height:1.7}

/* CTA */
.cta-band{
  padding:66px 0;
  background:linear-gradient(135deg,rgba(37,99,235,.3),rgba(56,189,248,.12));
  border-top:1px solid var(--line-strong);
  border-bottom:1px solid var(--line-strong);
  text-align:center;position:relative;z-index:1;
}
.cta-inner{max-width:780px;margin:0 auto}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.28}
.cta-band p{color:#cbd5e1;font-size:1rem;line-height:1.7;margin-bottom:24px}

/* FAB */
.fab-neon{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;display:grid;place-items:center;
  border-radius:18px;border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,var(--accent),var(--primary));
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:var(--accent);font-size:20px;opacity:.82;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease,color .25s ease;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab-neon:hover{opacity:1;transform:scale(1.1);color:#e0f2fe;box-shadow:0 0 32px rgba(56,189,248,.7)}
.fab-neon:active{transform:scale(.93)}
.fab-dot{
  position:absolute;top:7px;right:7px;width:10px;height:10px;border-radius:50%;
  background:var(--danger);box-shadow:0 0 8px var(--danger);
  animation:dotPulse 1.7s ease-in-out infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(56,189,248,.35)}
  50%{box-shadow:0 0 30px rgba(56,189,248,.65)}
}
@keyframes dotPulse{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.35);opacity:.6}
}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;z-index:1;
  background:linear-gradient(180deg,rgba(3,7,18,.55),#020617);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-col h4{
  font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;
  color:#e2e8f0;margin-bottom:15px;
}
.footer-col p{color:var(--muted);font-size:.92rem;line-height:1.7}
.footer-links li{margin-bottom:9px}
.footer-links a{color:var(--muted);font-size:.92rem;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--accent);padding-left:5px}
.footer-contact li{display:flex;gap:9px;align-items:flex-start;color:var(--muted);font-size:.9rem;margin-bottom:10px}
.footer-contact i{color:var(--accent);margin-top:4px;flex:0 0 auto}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  color:var(--muted-2);font-size:.85rem;
}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--line-strong);color:#bae6fd;
  background:rgba(56,189,248,.08);font-weight:600;font-size:.8rem;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-cat{padding:130px 0 70px}
  .hero-cat-grid{grid-template-columns:1fr;gap:34px}
  .hero-slash{width:86%;top:3%;height:66%}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991.98px){
  .main-nav{
    position:absolute;top:74px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 20px 20px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(2,6,23,.7);
  }
  .main-nav.open{display:flex}
  .nav-link{border-radius:10px;padding:12px 14px}
  .header-actions{margin-left:auto}
  .nav-toggle{display:grid;place-items:center}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .risk-list{grid-template-columns:1fr}
  .risk-item{border-right:none;padding:22px 0}
  .risk-item:nth-child(2n){padding-left:0}
  .check-grid{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-cat h1{font-size:clamp(1.7rem,6vw,2.3rem)}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .hero-cat{padding:120px 0 56px}
  .steps{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .brand-mark{width:38px;height:38px;font-size:16px}
  .brand-text strong{font-size:.94rem}
  .brand-text em{font-size:.64rem;letter-spacing:.1em}
  .btn-ghost{padding:8px 11px;font-size:.82rem}
  .btn-solid{padding:9px 13px;font-size:.82rem}
  .fab-neon{width:52px;height:52px;left:12px;bottom:84px}
}

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