/* roulang page: index */
:root{
  --bg:#07070D;
  --bg-soft:#0E0E1E;
  --bg-card:#12122A;
  --lime:#A3E635;
  --lime-deep:#65A30D;
  --lime-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --cyan-soft:rgba(6,182,212,.14);
  --pink:#F43F5E;
  --text:#FFFFFF;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --line:rgba(148,163,184,.16);
  --line-lime:rgba(163,230,53,.3);
  --r-sm:12px;
  --r:18px;
  --r-lg:28px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::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,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--lime)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul{margin:0}
ul{padding:0;list-style:none}
.container{max-width:1180px;padding-left:20px;padding-right:20px}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

/* ============ TYPOGRAPHY ============ */
.section{padding:82px 0;position:relative}
.section--soft{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--deep{background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.71rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.section-title{
  font-size:clamp(1.5rem,3.1vw,2.2rem);
  font-weight:800;line-height:1.28;letter-spacing:-.02em;
  margin-bottom:16px;
}
.section-lead{color:var(--muted);font-size:1rem;line-height:1.7;max-width:720px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head--split{max-width:none;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:end;margin-bottom:48px}
.text-accent{color:var(--lime)}
.text-cyan{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--lime) 0%,#D9F99D 40%,var(--cyan) 130%);
  color:#05121A;font-weight:800;font-size:.98rem;letter-spacing:-.01em;
  box-shadow:0 0 0 1px rgba(163,230,53,.4),0 14px 34px -14px rgba(163,230,53,.75);
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),filter .22s;
  cursor:pointer;
}
.btn-neon:hover,.btn-neon:focus-visible{
  transform:translateY(-3px);color:#05121A;filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(163,230,53,.6),0 20px 44px -14px rgba(163,230,53,.9);
}
.btn-neon:active{transform:translateY(0) scale(.985)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  border:1px solid rgba(148,163,184,.34);background:transparent;
  color:var(--text);font-weight:700;font-size:.9rem;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .22s var(--ease);
}
.btn-outline:hover{border-color:var(--lime);background:rgba(163,230,53,.08);color:var(--text);transform:translateY(-2px)}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,7,13,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:0;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;padding:0;margin-right:6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:#05121A;font-weight:900;font-size:.82rem;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:.95rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-text span{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links .nav-link{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links .nav-link.active{
  color:#05121A;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  box-shadow:0 0 18px rgba(163,230,53,.3);
}
.nav-actions{display:flex;align-items:center;gap:9px;margin-left:16px}
.btn-login{
  padding:9px 16px;border-radius:999px;font-size:.85rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(163,230,53,.36);background:transparent;
  white-space:nowrap;transition:.22s var(--ease);
}
.btn-login:hover{background:rgba(163,230,53,.12);color:var(--lime);border-color:var(--lime)}
.btn-signup{
  padding:10px 20px;border-radius:999px;font-size:.85rem;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#BEF264);color:#05121A;border:0;
  white-space:nowrap;box-shadow:0 0 16px rgba(163,230,53,.4);
  transition:.22s var(--ease);
}
.btn-signup:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.7)}
.navbar-toggler{
  border:1px solid var(--line);border-radius:11px;padding:7px 10px;margin-left:10px;
}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23A3E635' stroke-width='2.4' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;
}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:0;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:
    linear-gradient(105deg,rgba(7,7,13,.97) 0%,rgba(7,7,13,.86) 40%,rgba(7,7,13,.42) 100%),
    url('/assets/images/ca02cbe989e6437b.jpg');
  background-size:cover;background-position:center right;
}
.hero-slash{
  position:absolute;top:-18%;bottom:-18%;left:36%;width:54%;z-index:-1;
  transform:skewX(-12deg);
  background:linear-gradient(150deg,rgba(163,230,53,.16) 0%,rgba(6,182,212,.09) 55%,rgba(6,182,212,0) 100%);
  border-left:1px solid rgba(163,230,53,.2);
  pointer-events:none;
}
.hero-inner{position:relative;padding:78px 0 96px}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 16px;border-radius:999px;
  background:rgba(163,230,53,.1);border:1px solid rgba(163,230,53,.32);
  color:var(--lime);font-size:.75rem;font-weight:800;letter-spacing:.05em;
  margin-bottom:24px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px var(--lime);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.78)}}
.hero-title{
  font-size:clamp(1.72rem,4.6vw,3.05rem);
  font-weight:900;line-height:1.2;letter-spacing:-.035em;
  margin-bottom:22px;text-wrap:balance;
}
.hero-title .hl{
  background:linear-gradient(120deg,var(--lime),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#C7D2E0;font-size:1.02rem;line-height:1.72;max-width:640px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:18px}
.hero-micro{font-size:.82rem;color:var(--muted-2)}
.hero-cut{
  position:absolute;left:0;right:0;bottom:-1px;height:74px;z-index:-1;
  background:linear-gradient(180deg,rgba(7,7,13,0),rgba(7,7,13,1));
  clip-path:polygon(0 100%,100% 0,100% 100%);
}
.hero-panel{
  background:rgba(14,14,30,.74);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.hero-panel h2{font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-bottom:18px}
.hero-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(148,163,184,.18)}
.hero-row:last-child{border-bottom:0;padding-bottom:0}
.hero-row .k{font-size:.85rem;color:var(--muted)}
.hero-row .v{font-size:1.06rem;font-weight:800;color:var(--lime);letter-spacing:-.01em;white-space:nowrap}
.hero-row .v.c{color:var(--cyan)}

/* ============ METRIC STRIP ============ */
.metric-strip{padding:0 0 8px;margin-top:-26px;position:relative;z-index:3}
.metric-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;
}
.metric{background:#0B0B18;padding:24px 20px;transition:background .25s var(--ease)}
.metric:hover{background:#111126}
.metric-val{display:block;font-size:1.6rem;font-weight:900;letter-spacing:-.03em;line-height:1.1;color:var(--lime)}
.metric:nth-child(even) .metric-val{color:var(--cyan)}
.metric-label{font-size:.78rem;color:var(--muted);margin-top:6px;line-height:1.5}

/* ============ LAYOUT UTILS ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
.split--rev .split-media{order:2}
.badge-soft{
  display:inline-block;padding:6px 13px;border-radius:999px;
  background:var(--cyan-soft);border:1px solid rgba(6,182,212,.3);
  color:#67E8F9;font-size:.73rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
}
.badge-lime{background:var(--lime-soft);border-color:var(--line-lime);color:var(--lime)}
.figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s var(--ease)}
.figure:hover img{transform:scale(1.04)}
.figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:34px 22px 18px;font-size:.84rem;color:#D6E2F0;
  background:linear-gradient(180deg,rgba(7,7,13,0),rgba(7,7,13,.92));
}

/* ============ POINT LIST ============ */
.point-list{display:grid;gap:16px;margin-top:26px}
.point{
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  padding:18px 20px;border-radius:var(--r);
  background:rgba(18,18,42,.6);border:1px solid var(--line);
  transition:border-color .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);
}
.point:hover{border-color:var(--line-lime);transform:translateX(4px);background:rgba(18,18,42,.95)}
.point-num{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(163,230,53,.2),rgba(6,182,212,.14));
  border:1px solid rgba(163,230,53,.28);color:var(--lime);font-weight:900;font-size:.95rem;
}
.point h3{font-size:1rem;font-weight:800;margin-bottom:5px;letter-spacing:-.01em}
.point p{font-size:.9rem;color:var(--muted);line-height:1.62}

/* ============ FEATURE CARDS ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{
  padding:28px 24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(18,18,42,.95),rgba(11,11,24,.9));
  border:1px solid var(--line);position:relative;overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
  height:100%;
}
.feature-card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(420px 180px at 12% 0%,rgba(163,230,53,.12),transparent 70%);
  opacity:0;transition:opacity .35s var(--ease);
}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(163,230,53,.42);box-shadow:0 24px 46px -26px rgba(163,230,53,.5)}
.feature-card:hover::after{opacity:1}
.feature-ico{
  width:50px;height:50px;border-radius:15px;display:grid;place-items:center;
  background:rgba(163,230,53,.12);border:1px solid rgba(163,230,53,.3);
  font-size:1.24rem;margin-bottom:18px;
}
.feature-card h3{font-size:1.06rem;font-weight:800;margin-bottom:10px;letter-spacing:-.015em;line-height:1.4}
.feature-card p{font-size:.91rem;color:var(--muted);line-height:1.65}

/* ============ SCENARIO MATRIX ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.scene{
  padding:22px 20px;border-radius:var(--r);
  background:#0B0B18;border:1px solid var(--line);
  transition:.28s var(--ease);
}
.scene:hover{background:#12122A;border-color:rgba(6,182,212,.42);transform:translateY(-4px)}
.scene span{font-size:1.5rem;display:block;margin-bottom:12px}
.scene h3{font-size:.96rem;font-weight:800;margin-bottom:7px}
.scene p{font-size:.85rem;color:var(--muted);line-height:1.6}

/* ============ DEMO STAGE ============ */
.stage{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.stage-item{
  position:relative;border-radius:var(--r);overflow:hidden;
  border:1px solid var(--line);background:#0B0B18;
}
.stage-item img{aspect-ratio:3/4;object-fit:cover;width:100%;transition:transform .55s var(--ease)}
.stage-item:hover img{transform:scale(1.06)}
.stage-cap{
  padding:16px 18px;border-top:1px solid var(--line);
}
.stage-cap b{display:block;font-size:.94rem;font-weight:800;margin-bottom:4px}
.stage-cap p{font-size:.83rem;color:var(--muted);line-height:1.58}

/* ============ CATEGORY WALL ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  display:block;padding:30px 26px;border-radius:var(--r-lg);
  background:linear-gradient(155deg,rgba(18,18,42,.98),rgba(9,9,20,.94));
  border:1px solid var(--line);position:relative;overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
  height:100%;
}
.cat-card::before{
  content:"";position:absolute;top:-60px;right:-60px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(6,182,212,.22),transparent 70%);
  transition:transform .4s var(--ease);
}
.cat-card:hover{transform:translateY(-7px);border-color:rgba(163,230,53,.5);box-shadow:0 26px 50px -28px rgba(163,230,53,.55);color:inherit}
.cat-card:hover::before{transform:scale(1.35)}
.cat-kicker{font-size:.7rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);display:block;margin-bottom:14px}
.cat-card h3{font-size:1.16rem;font-weight:800;margin-bottom:10px;letter-spacing:-.02em}
.cat-card p{font-size:.9rem;color:var(--muted);line-height:1.65;margin-bottom:18px}
.cat-more{font-size:.86rem;font-weight:800;color:var(--lime);display:inline-flex;align-items:center;gap:7px}
.cat-more::after{content:"→";transition:transform .25s var(--ease)}
.cat-card:hover .cat-more::after{transform:translateX(5px)}

/* ============ REWARD LADDER ============ */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch}
.tier{
  border-radius:var(--r);padding:26px 22px;border:1px solid var(--line);
  background:#0B0B18;display:flex;flex-direction:column;gap:14px;
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.tier:hover{transform:translateY(-6px)}
.tier--hot{
  background:linear-gradient(165deg,rgba(163,230,53,.13),rgba(6,182,212,.07) 60%,rgba(11,11,24,.96));
  border-color:rgba(163,230,53,.46);
  box-shadow:0 0 0 1px rgba(163,230,53,.18),0 26px 52px -30px rgba(163,230,53,.7);
}
.tier .tier-name{font-size:.75rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.tier--hot .tier-name{color:var(--lime)}
.tier .tier-value{font-size:1.72rem;font-weight:900;letter-spacing:-.035em;line-height:1.06}
.tier .tier-value small{font-size:.82rem;font-weight:700;color:var(--muted);display:block;letter-spacing:0;margin-top:6px}
.tier ul{display:grid;gap:9px;font-size:.86rem;color:var(--muted)}
.tier ul li{display:flex;gap:9px;align-items:flex-start;line-height:1.5}
.tier ul li::before{content:"✓";color:var(--lime);font-weight:900;flex:0 0 auto}

/* ============ DATA BAR ============ */
.bar-wrap{display:grid;gap:20px;margin-top:8px}
.bar-row{display:grid;grid-template-columns:200px 1fr 76px;gap:18px;align-items:center}
.bar-row .bar-label{font-size:.9rem;font-weight:700;color:#DCE6F2}
.bar-track{height:10px;border-radius:999px;background:rgba(148,163,184,.14);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--lime),var(--cyan));box-shadow:0 0 14px rgba(163,230,53,.5)}
.bar-row .bar-val{font-size:.9rem;font-weight:800;color:var(--lime);text-align:right}

/* ============ QUOTES / REVIEWS ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote-card{
  padding:26px 24px;border-radius:var(--r-lg);
  background:rgba(18,18,42,.72);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;height:100%;
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.quote-card:hover{border-color:rgba(6,182,212,.42);transform:translateY(-5px)}
.quote-stars{color:#FACC15;font-size:.9rem;letter-spacing:2px}
.quote-card p{font-size:.92rem;color:#CBD5E1;line-height:1.68}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.quote-avatar{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:.85rem;
  background:linear-gradient(135deg,rgba(163,230,53,.22),rgba(6,182,212,.16));
  border:1px solid rgba(163,230,53,.3);color:var(--lime);
}
.quote-who b{display:block;font-size:.88rem;font-weight:800}
.quote-who span{font-size:.76rem;color:var(--muted-2)}

/* ============ BUBBLES ============ */
.bubble-wrap{display:flex;flex-wrap:wrap;gap:12px}
.bubble{
  padding:10px 18px;border-radius:999px;font-size:.84rem;color:#CBD5E1;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:.25s var(--ease);
}
.bubble:hover{border-color:var(--line-lime);color:#fff;background:rgba(163,230,53,.08)}
.bubble b{color:var(--lime)}

/* ============ NEWS ============ */
.news-card{
  height:100%;border-radius:var(--r);overflow:hidden;
  background:#0B0B18;border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.news-card:hover{transform:translateY(-6px);border-color:rgba(163,230,53,.42);box-shadow:0 24px 46px -26px rgba(163,230,53,.45)}
.news-thumb{display:block;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-tag{
  align-self:flex-start;font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;background:var(--cyan-soft);color:#67E8F9;border:1px solid rgba(6,182,212,.28);
}
.news-title{font-size:1rem;font-weight:800;line-height:1.45;letter-spacing:-.015em}
.news-title a:hover{color:var(--lime)}
.news-excerpt{font-size:.86rem;color:var(--muted);line-height:1.62}
.news-time{font-size:.76rem;color:var(--muted-2);margin-top:auto;padding-top:8px}
.empty-note{padding:28px;border:1px dashed var(--line);border-radius:var(--r);color:var(--muted);font-size:.9rem;text-align:center}

/* ============ DOWNLOAD STEPS ============ */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{
  padding:28px 24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(18,18,42,.95),rgba(9,9,20,.9));
  border:1px solid var(--line);height:100%;
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.dl-card:hover{border-color:rgba(163,230,53,.42);transform:translateY(-5px)}
.dl-card .os{font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.dl-card h3{font-size:1.06rem;font-weight:800;margin:12px 0 12px;letter-spacing:-.015em}
.dl-card ol{display:grid;gap:9px;counter-reset:step;margin-top:4px}
.dl-card ol li{
  counter-increment:step;position:relative;padding-left:30px;
  font-size:.87rem;color:var(--muted);line-height:1.58;
}
.dl-card ol li::before{
  content:counter(step);position:absolute;left:0;top:1px;
  width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
  font-size:.68rem;font-weight:900;color:#05121A;background:var(--lime);
}

/* ============ TRUST ============ */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-item{
  padding:24px 20px;border-radius:var(--r);text-align:left;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:.26s var(--ease);
}
.trust-item:hover{background:rgba(163,230,53,.06);border-color:var(--line-lime)}
.trust-item span{font-size:1.3rem;display:block;margin-bottom:10px}
.trust-item b{display:block;font-size:.94rem;font-weight:800;margin-bottom:6px}
.trust-item p{font-size:.83rem;color:var(--muted);line-height:1.58}

/* ============ FINAL CTA ============ */
.final-cta{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:56px 44px;text-align:center;
  background:
    linear-gradient(120deg,rgba(163,230,53,.16),rgba(6,182,212,.12) 55%,rgba(7,7,13,.9)),
    url('/assets/images/6cae70e0ac6eec00.jpg') center/cover;
  border:1px solid rgba(163,230,53,.3);
}
.final-cta h2{font-size:clamp(1.4rem,3vw,2.1rem);font-weight:900;letter-spacing:-.03em;margin-bottom:14px}
.final-cta p{color:#CFDAE8;max-width:660px;margin:0 auto 26px;font-size:.98rem;line-height:1.7}
.final-cta .note{margin-top:16px;font-size:.8rem;color:var(--muted-2)}

/* ============ FOOTER ============ */
.site-footer{background:#05050B;border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:.96rem;font-weight:800}
.footer-about{font-size:.87rem;color:var(--muted);line-height:1.7;max-width:400px}
.footer-col h3{font-size:.76rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.87rem;color:var(--muted)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:.79rem;color:var(--muted-2);
}
.footer-pay{display:flex;gap:8px;flex-wrap:wrap}
.footer-pay span{
  padding:5px 12px;border-radius:8px;font-size:.72rem;font-weight:700;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:#B7C4D6;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1050;
  display:inline-flex;align-items:center;gap:9px;
  min-width:56px;min-height:56px;padding:14px 18px;
  border-radius:999px;color:#fff;font-weight:800;font-size:.82rem;
  background:rgba(7,7,13,.84);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 22px rgba(6,182,212,.42);
  opacity:.8;transition:opacity .25s var(--ease),transform .25s var(--ease),box-shadow .3s var(--ease);
}
.fab::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1.6px;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.fab:hover{opacity:1;transform:scale(1.06);color:#fff;box-shadow:0 0 34px rgba(163,230,53,.6)}
.fab:active{transform:scale(.95)}
.fab-ico{font-size:.9rem;font-weight:900;letter-spacing:-.06em;color:var(--lime)}
.fab-dot{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 10px var(--pink);animation:pulse 1.4s infinite;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .ladder{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991.98px){
  .navbar-collapse{
    background:rgba(9,9,20,.98);border:1px solid var(--line);border-radius:var(--r);
    margin-top:14px;padding:14px 12px 18px;
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:4px;margin-left:0}
  .nav-links .nav-link{padding:12px 16px;border-radius:12px}
  .nav-actions{margin:14px 0 0;justify-content:stretch}
  .nav-actions a{flex:1;text-align:center}
  .site-header .navbar{min-height:68px}
  .split,.section-head--split{grid-template-columns:1fr;gap:30px}
  .split--rev .split-media{order:0}
  .card-grid,.cat-grid,.quote-grid,.dl-grid,.stage{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .hero-inner{padding:58px 0 76px}
  .hero-slash{left:20%;width:80%;opacity:.65}
}
@media (max-width:767.98px){
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .bar-row{grid-template-columns:1fr;gap:8px}
  .bar-row .bar-val{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .brand-text span{display:none}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:52px 0}
  .card-grid,.cat-grid,.quote-grid,.dl-grid,.stage,.scene-grid,.ladder,.trust-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr}
  .hero-title{font-size:1.58rem}
  .hero-lead{font-size:.94rem}
  .btn-neon{width:100%;padding:15px 22px}
  .hero-actions{gap:10px}
  .final-cta{padding:40px 22px;border-radius:var(--r)}
  .fab{bottom:84px;left:12px;padding:12px 15px;font-size:.76rem}
}

/* roulang page: article */
:root{
  --bg:#07070D;
  --bg-soft:#0E0E1E;
  --bg-card:#12122A;
  --lime:#A3E635;
  --lime-deep:#65A30D;
  --lime-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --cyan-soft:rgba(6,182,212,.14);
  --pink:#F43F5E;
  --text:#FFFFFF;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --line:rgba(148,163,184,.16);
  --line-lime:rgba(163,230,53,.3);
  --r-sm:12px;
  --r:18px;
  --r-lg:28px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::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,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--lime)}
button{font-family:inherit}
ul,ol{margin:0;padding:0}
.container{max-width:1180px;padding-left:20px;padding-right:20px}
/* ============ TYPOGRAPHY ============ */
.section{padding:82px 0;position:relative}
.section--soft{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--deep{background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.71rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.section-title{
  font-size:clamp(1.5rem,3.1vw,2.2rem);
  font-weight:800;line-height:1.28;letter-spacing:-.02em;margin-bottom:16px;
}
.section-lead{color:var(--muted);font-size:1rem;line-height:1.7;max-width:720px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--split{max-width:none;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:end;margin-bottom:48px}
.text-accent{color:var(--lime)}
.text-cyan{color:var(--cyan)}
/* ============ BUTTONS ============ */
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--lime) 0%,#D9F99D 40%,var(--cyan) 130%);
  color:#05121A;font-weight:800;font-size:.98rem;letter-spacing:-.01em;
  box-shadow:0 0 0 1px rgba(163,230,53,.4),0 14px 34px -14px rgba(163,230,53,.75);
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),filter .22s;
  cursor:pointer;
}
.btn-neon:hover,.btn-neon:focus-visible{
  transform:translateY(-3px);color:#05121A;filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(163,230,53,.6),0 20px 44px -14px rgba(163,230,53,.9);
}
.btn-neon:active{transform:translateY(0) scale(.985)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  border:1px solid rgba(148,163,184,.34);background:transparent;
  color:var(--text);font-weight:700;font-size:.9rem;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .22s var(--ease);
}
.btn-outline:hover{border-color:var(--lime);background:rgba(163,230,53,.08);color:var(--text);transform:translateY(-2px)}
.btn-outline:focus-visible,.btn-neon:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,7,13,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:0;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;padding:0;margin-right:6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:#05121A;font-weight:900;font-size:.82rem;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:.95rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-text span{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links .nav-link{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links .nav-link.active{
  color:#05121A;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  box-shadow:0 0 18px rgba(163,230,53,.3);
}
.nav-actions{display:flex;align-items:center;gap:9px;margin-left:16px}
.btn-login{
  padding:9px 16px;border-radius:999px;font-size:.85rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(163,230,53,.36);background:transparent;
  white-space:nowrap;transition:.22s var(--ease);
}
.btn-login:hover{background:rgba(163,230,53,.12);color:var(--lime);border-color:var(--lime)}
.btn-signup{
  padding:10px 20px;border-radius:999px;font-size:.85rem;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#BEF264);color:#05121A;border:0;
  white-space:nowrap;box-shadow:0 0 16px rgba(163,230,53,.4);
  transition:.22s var(--ease);
}
.btn-signup:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.7)}
.navbar-toggler{border:1px solid var(--line);border-radius:11px;padding:7px 10px;margin-left:10px}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23A3E635' stroke-width='2.4' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;
}
/* ============ ARTICLE HERO ============ */
.art-hero{position:relative;overflow:hidden;padding:44px 0 66px;isolation:isolate}
.art-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:
    linear-gradient(100deg,rgba(7,7,13,.97) 0%,rgba(7,7,13,.9) 44%,rgba(7,7,13,.5) 100%),
    url('/assets/images/fe24b140bd4c577a.jpg');
  background-size:cover;background-position:center right;
}
.art-hero::after{
  content:"";position:absolute;top:-20%;bottom:-20%;left:38%;width:52%;z-index:-1;
  transform:skewX(-12deg);
  background:linear-gradient(150deg,rgba(163,230,53,.15) 0%,rgba(6,182,212,.08) 55%,rgba(6,182,212,0) 100%);
  border-left:1px solid rgba(163,230,53,.18);
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:.8rem;color:var(--muted-2);margin-bottom:26px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--lime)}
.crumbs i{font-size:.6rem;color:var(--muted-2)}
.art-hero h1{
  font-size:clamp(1.65rem,3.9vw,2.85rem);
  font-weight:900;line-height:1.24;letter-spacing:-.025em;
  margin:0 0 20px;max-width:16.5ch;
}
.art-hero .lead{color:#CBD5E1;font-size:1.03rem;line-height:1.72;max-width:640px;margin-bottom:26px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:.78rem;font-weight:600;color:var(--muted);letter-spacing:.01em;
}
.chip i{color:var(--lime);font-size:.78rem}
.chip--hot{border-color:var(--line-lime);background:var(--lime-soft);color:var(--lime)}
.art-cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.art-quote{
  margin-top:44px;padding:22px 26px;
  border-left:3px solid var(--lime);
  background:linear-gradient(90deg,rgba(163,230,53,.09),rgba(6,182,212,.03));
  border-radius:0 var(--r) var(--r) 0;
  color:#E2E8F0;font-size:1.02rem;line-height:1.7;font-style:italic;max-width:760px;
}
/* ============ ARTICLE BODY ============ */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:52px;align-items:start}
.article-body{font-size:1.02rem;line-height:1.75;color:#CBD5E1;min-width:0}
.article-body h2{
  color:#fff;font-size:clamp(1.28rem,2.4vw,1.72rem);font-weight:800;line-height:1.34;
  letter-spacing:-.02em;margin:44px 0 16px;padding-left:16px;border-left:3px solid var(--lime);
}
.article-body h3{color:#fff;font-size:1.14rem;font-weight:700;margin:32px 0 12px;letter-spacing:-.01em}
.article-body p{margin:0 0 18px}
.article-body strong{color:#fff;font-weight:700}
.article-body a{color:var(--lime);border-bottom:1px solid rgba(163,230,53,.4)}
.article-body a:hover{color:var(--cyan);border-color:var(--cyan)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:0;list-style:none}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:30px;margin-bottom:11px;line-height:1.7;
}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:.62em;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
}
.article-body ol{counter-reset:artnum}
.article-body ol li{counter-increment:artnum}
.article-body ol li::before{
  content:counter(artnum);position:absolute;left:0;top:.15em;
  width:21px;height:21px;border-radius:7px;display:grid;place-items:center;
  font-size:.7rem;font-weight:800;color:#05121A;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;border-radius:var(--r);
  background:linear-gradient(120deg,rgba(6,182,212,.1),rgba(163,230,53,.05));
  border:1px solid var(--line);color:#E2E8F0;font-style:italic;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.93rem}
.article-body th,.article-body td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:#fff;font-weight:700;background:rgba(163,230,53,.07)}
.article-body img{border-radius:var(--r);margin:22px 0;border:1px solid var(--line)}
.article-empty{
  padding:44px 30px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:rgba(255,255,255,.02);text-align:left;
}
.article-empty h2{font-size:1.4rem;font-weight:800;margin:0 0 12px}
.article-empty p{color:var(--muted);margin-bottom:22px}
/* ============ SIDEBAR ============ */
.side-panel{
  position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;
}
.panel-card{
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(160deg,rgba(18,18,42,.92),rgba(14,14,30,.72));
  padding:24px 22px;
}
.panel-card h3{font-size:.95rem;font-weight:800;margin:0 0 16px;color:#fff;letter-spacing:-.01em}
.panel-card ul{list-style:none}
.panel-card ul li{margin-bottom:12px}
.panel-card ul li a{font-size:.88rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.panel-card ul li a:hover{color:var(--lime)}
.panel-card ul li i{color:var(--cyan);margin-top:4px;font-size:.72rem}
.panel-card--promo{
  border-color:var(--line-lime);
  background:linear-gradient(155deg,rgba(163,230,53,.14),rgba(6,182,212,.06));
}
.panel-card--promo .code-box{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
  border:1px dashed rgba(163,230,53,.55);background:rgba(7,7,13,.5);
}
.panel-card--promo .code-box b{font-size:1.15rem;font-weight:900;color:var(--lime);letter-spacing:.06em}
.panel-card--promo .code-box span{font-size:.72rem;color:var(--muted)}
.panel-card--promo p{font-size:.85rem;color:#CBD5E1;margin:0}
/* ============ KEY POINT CARDS ============ */
.key-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.key-card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(165deg,rgba(18,18,42,.9),rgba(11,11,26,.8));
  padding:28px 24px;overflow:hidden;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .3s var(--ease);
}
.key-card:hover{transform:translateY(-6px);border-color:var(--line-lime);box-shadow:0 24px 46px -30px rgba(163,230,53,.6)}
.key-card .num{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:.9rem;color:#05121A;margin-bottom:18px;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
}
.key-card h3{font-size:1.05rem;font-weight:800;margin:0 0 10px;color:#fff}
.key-card p{font-size:.9rem;color:var(--muted);line-height:1.68;margin:0}
.key-card .tag{
  position:absolute;top:18px;right:18px;font-size:.66rem;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;color:var(--lime);padding:5px 10px;border-radius:999px;
  border:1px solid var(--line-lime);background:rgba(163,230,53,.1);
}
/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  padding:24px 22px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  border-top:2px solid var(--line-lime);
  transition:background .26s var(--ease),transform .26s var(--ease);
}
.step:hover{background:rgba(163,230,53,.06);transform:translateY(-4px)}
.step .step-no{font-size:.72rem;font-weight:800;letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}
.step h3{font-size:1rem;font-weight:800;margin:12px 0 9px;color:#fff}
.step p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.66}
/* ============ APP SPLIT ============ */
.app-split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.spec-list{list-style:none;margin:26px 0 28px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.spec-list li{
  display:flex;align-items:center;gap:11px;font-size:.87rem;color:#CBD5E1;
  padding:12px 15px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.025);
}
.spec-list li i{color:var(--lime);font-size:.85rem}
.app-shot{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.app-shot img{width:100%;object-fit:cover;transition:transform .5s var(--ease)}
.app-shot:hover img{transform:scale(1.04)}
.app-shot .shot-badge{
  position:absolute;left:18px;bottom:18px;padding:11px 18px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(10px);
  border:1px solid var(--line-lime);font-size:.8rem;font-weight:700;color:var(--lime);
  display:inline-flex;align-items:center;gap:9px;
}
/* ============ MISTAKE LIST ============ */
.mistake-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mistake{
  border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;
  background:linear-gradient(170deg,rgba(18,18,42,.85),rgba(11,11,26,.7));
}
.mistake i{font-size:1.1rem;color:var(--pink);margin-bottom:14px;display:block}
.mistake h3{font-size:1rem;font-weight:800;margin:0 0 10px;color:#fff}
.mistake p{font-size:.87rem;color:var(--muted);margin:0;line-height:1.68}
.mistake .fix{
  display:block;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:.83rem;color:var(--lime);font-weight:600;
}
/* ============ STATS STRIP ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:34px 30px;border-radius:var(--r-lg);
  border:1px solid var(--line-lime);
  background:linear-gradient(120deg,rgba(163,230,53,.09),rgba(6,182,212,.05));
}
.stat b{display:block;font-size:clamp(1.5rem,3vw,2rem);font-weight:900;letter-spacing:-.03em;color:#fff;line-height:1.15}
.stat span{font-size:.83rem;color:var(--muted);font-weight:600}
/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-wrap .accordion-item{
  background:transparent;border:1px solid var(--line);border-radius:var(--r) !important;
  margin-bottom:14px;overflow:hidden;
}
.faq-wrap .accordion-button{
  background:rgba(255,255,255,.025);color:#fff;font-weight:700;font-size:.96rem;
  padding:20px 24px;box-shadow:none;gap:14px;
}
.faq-wrap .accordion-button:not(.collapsed){background:rgba(163,230,53,.08);color:var(--lime)}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-wrap .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A3E635'%3E%3Cpath d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
}
.faq-wrap .accordion-body{color:var(--muted);font-size:.92rem;line-height:1.72;padding:0 24px 22px}
/* ============ CTA BAND ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:52px 46px;text-align:center;
  border:1px solid var(--line-lime);
  background:
    radial-gradient(circle at 12% 20%,rgba(163,230,53,.2),transparent 55%),
    radial-gradient(circle at 88% 80%,rgba(6,182,212,.18),transparent 55%),
    linear-gradient(140deg,#0B0B1C,#07070D);
}
.cta-band h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;letter-spacing:-.02em;margin:0 0 14px}
.cta-band p{color:var(--muted);max-width:600px;margin:0 auto 30px;font-size:.96rem}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 20px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
                   linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--lime);font-weight:800;font-size:.83rem;white-space:nowrap;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s var(--ease),transform .25s var(--ease),box-shadow .3s var(--ease);
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px) scale(1.03);box-shadow:0 0 30px rgba(163,230,53,.55)}
.fab:active{transform:translateY(1px) scale(.97)}
.fab .fab-dot{
  position:absolute;top:6px;right:8px;width:9px;height:9px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 10px var(--lime);
  animation:fabPulse 1.6s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.72)}}
/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#08080F 0%,#05050A 100%);
  padding:64px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:1rem;font-weight:800;color:#fff}
.footer-about{color:var(--muted);font-size:.87rem;line-height:1.72;max-width:420px;margin:0}
.footer-col h3{font-size:.82rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin:0 0 18px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:.87rem;color:var(--muted)}
.footer-col ul li a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  padding-top:24px;border-top:1px solid var(--line);
  font-size:.8rem;color:var(--muted-2);
}
.footer-pay{display:flex;flex-wrap:wrap;gap:10px}
.footer-pay span{
  padding:6px 13px;border-radius:8px;font-size:.74rem;font-weight:600;
  border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.02);
}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .art-layout{grid-template-columns:1fr;gap:40px}
  .side-panel{position:static}
  .key-grid,.mistake-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .app-split{grid-template-columns:1fr;gap:34px}
  .section-head--split{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .art-hero{padding:30px 0 48px}
  .art-hero h1{max-width:none}
  .stat-strip{grid-template-columns:1fr 1fr;gap:22px;padding:26px 22px}
  .spec-list{grid-template-columns:1fr}
  .nav-links{margin-left:0;padding:14px 0 4px;align-items:stretch}
  .nav-links .nav-link{padding:11px 14px}
  .nav-actions{margin:12px 0 6px;gap:10px}
  .btn-login,.btn-signup{padding:10px 18px}
  .cta-band{padding:38px 22px}
  .art-cta-row .btn-neon,.art-cta-row .btn-outline{width:100%}
}
@media (max-width:520px){
  .key-grid,.mistake-grid,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .art-quote{font-size:.95rem;padding:18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{left:12px;bottom:84px;padding:12px 16px;font-size:.78rem}
}

/* roulang page: category1 */
:root{
  --bg:#07070D;
  --bg-soft:#0E0E1E;
  --bg-card:#12122A;
  --lime:#A3E635;
  --lime-deep:#65A30D;
  --lime-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --cyan-soft:rgba(6,182,212,.14);
  --pink:#F43F5E;
  --text:#FFFFFF;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --line:rgba(148,163,184,.16);
  --line-lime:rgba(163,230,53,.3);
  --r-sm:12px;
  --r:18px;
  --r-lg:28px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::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,sans-serif;
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--lime)}
button{font-family:inherit}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.28;margin:0}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1180px;padding-left:20px;padding-right:20px}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,7,13,.88);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:0;min-height:74px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;padding:0;margin-right:6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:#05121A;font-weight:900;font-size:.82rem;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:.95rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-text span{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.navbar-collapse{flex-grow:1;align-items:center}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links .nav-link{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links .nav-link.active{
  color:#05121A;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  box-shadow:0 0 18px rgba(163,230,53,.3);
}
.nav-actions{display:flex;align-items:center;gap:9px;margin-left:16px}
.btn-login{
  padding:9px 16px;border-radius:999px;font-size:.85rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(163,230,53,.36);background:transparent;
  white-space:nowrap;transition:.22s var(--ease);
}
.btn-login:hover{background:rgba(163,230,53,.12);color:var(--lime);border-color:var(--lime)}
.btn-signup{
  padding:10px 20px;border-radius:999px;font-size:.85rem;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#BEF264);color:#05121A;border:0;
  white-space:nowrap;box-shadow:0 0 16px rgba(163,230,53,.4);
  transition:.22s var(--ease);
}
.btn-signup:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.7)}
.nav-quick{display:none;margin-left:auto}
.navbar-toggler{
  border:1px solid var(--line);border-radius:11px;padding:7px 10px;margin-left:10px;
}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23A3E635' stroke-width='2.4' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;
}
/* ============ HERO ============ */
.hero-cat{
  position:relative;padding:66px 0 78px;overflow:hidden;isolation:isolate;
  background:
    linear-gradient(105deg,rgba(7,7,13,.97) 0%,rgba(7,7,13,.9) 44%,rgba(7,7,13,.5) 100%),
    url('/assets/images/d8fd7c399f35ea20.jpg') center/cover no-repeat;
}
.hero-cat::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(163,230,53,.45),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.7rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);border:1px solid var(--line-lime);border-radius:999px;
  padding:7px 15px;margin-bottom:20px;background:rgba(163,230,53,.06);
}
.hero-cat h1{
  font-size:clamp(1.75rem,3.6vw,2.7rem);
  line-height:1.2;margin-bottom:18px;
}
.hero-cat h1 .mark{
  background:linear-gradient(120deg,var(--lime),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:1.03rem;line-height:1.72;max-width:600px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:30px}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--lime) 0%,#D9F99D 40%,var(--cyan) 130%);
  color:#05121A;font-weight:800;font-size:.98rem;letter-spacing:-.01em;
  box-shadow:0 0 0 1px rgba(163,230,53,.4),0 14px 34px -14px rgba(163,230,53,.75);
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),filter .22s;
  cursor:pointer;
}
.btn-neon:hover,.btn-neon:focus-visible{
  transform:translateY(-3px);color:#05121A;filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(163,230,53,.6),0 20px 44px -14px rgba(163,230,53,.9);
}
.btn-neon:active{transform:translateY(0) scale(.985)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  border:1px solid rgba(148,163,184,.34);background:transparent;
  color:var(--text);font-weight:700;font-size:.9rem;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .22s var(--ease);
}
.btn-outline:hover{border-color:var(--lime);background:rgba(163,230,53,.08);color:#fff;transform:translateY(-2px)}
/* Coupon card */
.coupon{
  position:relative;border-radius:26px;padding:30px 28px 26px;
  background:
    radial-gradient(120% 90% at 100% 0%,rgba(6,182,212,.22) 0%,rgba(6,182,212,0) 55%),
    linear-gradient(160deg,#151533 0%,#0D0D1F 100%);
  border:1px solid var(--line-lime);
  box-shadow:0 30px 70px -38px rgba(163,230,53,.55),var(--shadow);
}
.coupon::before,.coupon::after{
  content:"";position:absolute;width:26px;height:26px;border-radius:50%;
  background:var(--bg);top:56%;border:1px solid var(--line-lime);
}
.coupon::before{left:-14px}
.coupon::after{right:-14px}
.coupon-tag{
  display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.2em;
  text-transform:uppercase;color:#05121A;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  padding:6px 13px;border-radius:999px;margin-bottom:18px;
}
.coupon-value{
  display:flex;align-items:baseline;gap:10px;margin-bottom:8px;
}
.coupon-value b{
  font-size:clamp(2.9rem,6vw,3.9rem);font-weight:900;line-height:1;
  background:linear-gradient(120deg,#fff,var(--lime));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.coupon-value span{font-size:1rem;font-weight:700;color:var(--cyan);letter-spacing:.06em}
.coupon-sub{color:var(--muted);font-size:.92rem;line-height:1.7;margin-bottom:20px}
.coupon-dash{
  height:1px;margin:0 0 18px;
  background:repeating-linear-gradient(90deg,rgba(148,163,184,.45) 0 8px,transparent 8px 16px);
}
.coupon-list{display:grid;gap:11px;margin-bottom:22px}
.coupon-list li{display:flex;gap:11px;align-items:flex-start;font-size:.9rem;color:#E2E8F0}
.coupon-list i{color:var(--lime);margin-top:4px;font-size:.8rem}
.coupon .btn-neon{width:100%;padding:15px 20px}
.coupon-foot{
  margin-top:14px;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted-2);text-align:center;
}
/* ============ SECTIONS ============ */
.section{padding:82px 0;position:relative}
.section--soft{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--deep{background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.71rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.section-title{font-size:clamp(1.5rem,3.1vw,2.2rem);margin-bottom:16px}
.section-lead{color:var(--muted);font-size:1rem;line-height:1.7;max-width:730px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--split{max-width:none;display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:end;margin-bottom:48px}
.text-accent{color:var(--lime)}
/* stat strip */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:linear-gradient(160deg,rgba(18,18,42,.9),rgba(14,14,30,.65));
}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line);text-align:left}
.stat-cell:last-child{border-right:0}
.stat-cell b{
  display:block;font-size:clamp(1.5rem,3vw,2rem);font-weight:900;
  color:var(--lime);letter-spacing:-.03em;line-height:1.1;margin-bottom:6px;
}
.stat-cell span{font-size:.85rem;color:var(--muted);line-height:1.5;display:block}
/* tip cards (asymmetric) */
.tip-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.tip-card{
  border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;background:linear-gradient(160deg,rgba(18,18,42,.85),rgba(14,14,30,.5));
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.tip-card:hover{
  border-color:var(--line-lime);transform:translateY(-4px);
  box-shadow:0 22px 48px -30px rgba(163,230,53,.7);
}
.tip-card:nth-child(1){grid-column:span 5}
.tip-card:nth-child(2){grid-column:span 7}
.tip-card:nth-child(3){grid-column:span 7}
.tip-card:nth-child(4){grid-column:span 5}
.tip-card:nth-child(5){grid-column:span 6}
.tip-card:nth-child(6){grid-column:span 6}
.tip-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--lime-soft);color:var(--lime);font-size:1.05rem;margin-bottom:16px;
}
.tip-card.alt .tip-icon{background:var(--cyan-soft);color:var(--cyan)}
.tip-card h3{font-size:1.08rem;margin-bottom:10px}
.tip-card p{color:var(--muted);font-size:.93rem;line-height:1.7}
.tip-meta{
  display:inline-block;margin-top:16px;font-size:.72rem;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);
  border-top:1px solid var(--line);padding-top:12px;
}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding-top:58px}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:0;left:0;
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:900;font-size:.95rem;color:#05121A;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  box-shadow:0 0 22px rgba(163,230,53,.35);
}
.step::after{
  content:"";position:absolute;top:23px;left:58px;right:-22px;height:1px;
  background:linear-gradient(90deg,rgba(163,230,53,.5),rgba(6,182,212,.15));
}
.step:last-child::after{display:none}
.step h3{font-size:1.02rem;margin-bottom:9px}
.step p{color:var(--muted);font-size:.91rem;line-height:1.7}
/* scene cards */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  border-radius:var(--r);border:1px solid var(--line);overflow:hidden;
  background:var(--bg-card);display:flex;flex-direction:column;
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.scene-card:hover{transform:translateY(-5px);border-color:var(--line-lime)}
.scene-card img{width:100%;height:172px;object-fit:cover}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-card h3{font-size:1.04rem;margin-bottom:10px}
.scene-card p{color:var(--muted);font-size:.92rem;line-height:1.7}
.scene-badge{
  align-self:flex-start;font-size:.68rem;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;padding:5px 11px;border-radius:999px;margin-bottom:14px;
  color:var(--lime);background:var(--lime-soft);border:1px solid var(--line-lime);
}
.scene-card.hi{border-color:var(--line-lime);box-shadow:0 24px 56px -34px rgba(163,230,53,.7)}
/* param table */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:linear-gradient(160deg,rgba(18,18,42,.9),rgba(14,14,30,.6));
}
.param-table{width:100%;border-collapse:collapse;min-width:640px}
.param-table th,.param-table td{padding:17px 20px;text-align:left;font-size:.92rem;border-bottom:1px solid var(--line)}
.param-table thead th{
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);background:rgba(255,255,255,.03);font-weight:800;
}
.param-table tbody tr:last-child td{border-bottom:0}
.param-table tbody tr{transition:background .22s var(--ease)}
.param-table tbody tr:hover{background:rgba(163,230,53,.05)}
.param-table td:first-child{font-weight:700;color:#fff}
.param-table td{color:var(--muted)}
.param-table td strong{color:var(--lime);font-weight:700}
.table-scroll{overflow-x:auto}
/* mistakes */
.mistake-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.mistake{
  border:1px solid var(--line);border-radius:var(--r);padding:22px 22px 20px;
  background:linear-gradient(160deg,rgba(18,18,42,.7),rgba(14,14,30,.4));
}
.mistake-row{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;line-height:1.68}
.mistake-row + .mistake-row{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.mistake-row i{margin-top:4px;font-size:.82rem}
.mistake-row.wrong i{color:var(--pink)}
.mistake-row.right i{color:var(--lime)}
.mistake-row.wrong span{color:#CBD5E1}
.mistake-row.right span{color:#fff}
.mistake-label{
  display:block;font-size:.68rem;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;margin-bottom:4px;
}
.mistake-row.wrong .mistake-label{color:var(--pink)}
.mistake-row.right .mistake-label{color:var(--lime)}
/* FAQ */
.faq-acc{border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.faq-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-acc .accordion-item:last-child{border-bottom:0}
.faq-acc .accordion-button{
  background:transparent;color:#fff;font-weight:700;font-size:.98rem;
  padding:20px 22px;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--lime);background:rgba(163,230,53,.06);
}
.faq-acc .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A3E635'%3E%3Cpath d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E");
  width:17px;height:17px;background-size:17px;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A3E635'%3E%3Cpath d='M2.5 8a.75.75 0 0 1 .75-.75h9.5a.75.75 0 0 1 0 1.5h-9.5A.75.75 0 0 1 2.5 8Z'/%3E%3C/svg%3E");
}
.faq-acc .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:.94rem;line-height:1.75}
/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-lime);
  background:
    radial-gradient(110% 120% at 0% 0%,rgba(163,230,53,.2) 0%,rgba(163,230,53,0) 55%),
    radial-gradient(120% 130% at 100% 100%,rgba(6,182,212,.22) 0%,rgba(6,182,212,0) 58%),
    linear-gradient(150deg,#12122A 0%,#0A0A18 100%);
  padding:48px 44px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:38px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.4rem,2.9vw,2rem);margin-bottom:14px}
.cta-band p{color:var(--muted);font-size:.97rem;line-height:1.72;max-width:560px}
.cta-side{display:grid;gap:12px}
.cta-code{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border:1px dashed var(--line-lime);border-radius:var(--r-sm);
  padding:14px 18px;background:rgba(163,230,53,.07);
}
.cta-code b{font-size:1.3rem;font-weight:900;color:var(--lime);letter-spacing:.06em}
.cta-code span{font-size:.76rem;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.pay-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.pay-chips span{
  font-size:.76rem;font-weight:700;color:#E2E8F0;
  border:1px solid var(--line);border-radius:999px;padding:6px 13px;
  background:rgba(255,255,255,.03);
}
.section-note{color:var(--muted-2);font-size:.84rem;margin-top:18px}
/* footer */
.site-footer{
  background:linear-gradient(180deg,#07070D 0%,#0B0B1C 100%);
  border-top:1px solid var(--line);padding:58px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;margin-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:1rem;font-weight:800;color:#fff}
.footer-about{color:var(--muted);font-size:.9rem;line-height:1.75;max-width:430px}
.footer-col h3{
  font-size:.76rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.footer-bottom>span{color:var(--muted-2);font-size:.82rem}
.footer-pay{display:flex;flex-wrap:wrap;gap:8px}
.footer-pay span{
  font-size:.72rem;font-weight:700;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid transparent;
  background-image:
    linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),
    linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  color:var(--lime);font-size:1.15rem;
  opacity:.8;
  animation:fabPulse 2.8s ease-in-out infinite;
  transition:opacity .26s var(--ease),transform .26s var(--ease),box-shadow .3s var(--ease),color .26s var(--ease);
}
.fab:hover{
  opacity:1;transform:scale(1.1);color:var(--cyan);
  box-shadow:0 0 34px rgba(163,230,53,.6);
}
.fab:active{transform:scale(.95)}
.fab-badge{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
  background:var(--pink);border:2px solid #07070D;
  animation:badgeBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35)}
  50%{box-shadow:0 0 30px rgba(163,230,53,.6)}
}
@keyframes badgeBlink{0%,100%{opacity:1}50%{opacity:.35}}
/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:40px}
}
@media (max-width:991.98px){
  .nav-quick{display:inline-flex;order:2}
  .navbar-toggler{order:3}
  .navbar-collapse{
    order:4;flex-basis:100%;margin-top:12px;
    border-top:1px solid var(--line);padding-top:14px;
  }
  .nav-links{flex-direction:column;align-items:stretch;margin-left:0;gap:4px}
  .nav-links .nav-link{padding:11px 14px;border-radius:12px}
  .nav-actions{margin:12px 0 4px;gap:10px}
  .nav-actions .btn-login,.nav-actions .btn-signup{flex:1;text-align:center;padding:12px 16px}
  .hero-cat{padding:52px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-lead{max-width:none}
  .section{padding:62px 0}
  .section-head--split{grid-template-columns:1fr;gap:18px;align-items:start}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px}
  .step:nth-child(2)::after{display:none}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card:nth-child(3){grid-column:span 2}
  .tip-card:nth-child(n){grid-column:span 12}
  .mistake-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:38px 30px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid>div:first-child{grid-column:span 2}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .brand-text span{display:none}
  .hero-cat{padding:40px 0 48px}
  .hero-cta{gap:10px}
  .hero-cta .btn-neon,.hero-cta .btn-outline{width:100%}
  .section{padding:50px 0}
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
  .stat-cell:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr;gap:24px}
  .step::after{display:none}
  .step{padding-top:52px}
  .scene-grid{grid-template-columns:1fr}
  .scene-card:nth-child(3){grid-column:span 1}
  .cta-band{padding:30px 20px}
  .coupon{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid>div:first-child{grid-column:span 1}
  .fab{width:52px;height:52px;bottom:82px;left:12px}
}

/* roulang page: category2 */
:root{
  --bg:#07070D;
  --bg-soft:#0E0E1E;
  --bg-card:#12122A;
  --lime:#A3E635;
  --lime-deep:#65A30D;
  --lime-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --cyan-soft:rgba(6,182,212,.14);
  --pink:#F43F5E;
  --text:#FFFFFF;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --line:rgba(148,163,184,.16);
  --line-lime:rgba(163,230,53,.3);
  --r-sm:12px;
  --r:18px;
  --r-lg:28px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}
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,sans-serif;
  font-size:16px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--lime)}
button,input{font-family:inherit}
ul{list-style:none;margin:0;padding:0}
.container{max-width:1180px;padding-left:20px;padding-right:20px}
::selection{background:var(--lime);color:#05121A}

/* ================= TYPOGRAPHY ================= */
.section{padding:82px 0;position:relative}
.section--soft{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--deep{background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.71rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.section-title{
  font-size:clamp(1.5rem,3.1vw,2.2rem);font-weight:800;line-height:1.28;
  letter-spacing:-.02em;margin-bottom:16px;
}
.section-lead{color:var(--muted);font-size:1rem;line-height:1.7;max-width:720px}
.section-head{max-width:740px;margin-bottom:44px}
.section-head--split{
  max-width:none;display:grid;grid-template-columns:1.15fr .85fr;
  gap:40px;align-items:end;margin-bottom:48px;
}
.text-accent{color:var(--lime)}
.text-cyan{color:var(--cyan)}

/* ================= BUTTONS ================= */
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--lime) 0%,#D9F99D 40%,var(--cyan) 130%);
  color:#05121A;font-weight:800;font-size:.98rem;letter-spacing:-.01em;
  box-shadow:0 0 0 1px rgba(163,230,53,.4),0 14px 34px -14px rgba(163,230,53,.75);
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),filter .22s;
  cursor:pointer;
}
.btn-neon:hover,.btn-neon:focus-visible{
  transform:translateY(-3px);color:#05121A;filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(163,230,53,.6),0 20px 44px -14px rgba(163,230,53,.9);
}
.btn-neon:active{transform:translateY(0) scale(.985)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  border:1px solid rgba(148,163,184,.34);background:transparent;
  color:var(--text);font-weight:700;font-size:.9rem;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--lime);background:rgba(163,230,53,.08);color:var(--text);transform:translateY(-2px)}
.btn-cyan{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:999px;border:1px solid rgba(6,182,212,.45);
  background:rgba(6,182,212,.12);color:#CFFAFE;font-weight:800;font-size:.92rem;
  transition:.24s var(--ease);
}
.btn-cyan:hover{background:rgba(6,182,212,.22);color:#fff;transform:translateY(-2px)}

/* ================= HEADER / NAV ================= */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,7,13,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:0;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;padding:0;margin-right:6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:#05121A;font-weight:900;font-size:.82rem;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:.95rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-text span{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links .nav-link{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links .nav-link.active{
  color:#05121A;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  box-shadow:0 0 18px rgba(163,230,53,.3);
}
.nav-actions{display:flex;align-items:center;gap:9px;margin-left:16px}
.btn-login{
  padding:9px 16px;border-radius:999px;font-size:.85rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(163,230,53,.36);background:transparent;
  white-space:nowrap;transition:.22s var(--ease);
}
.btn-login:hover{background:rgba(163,230,53,.12);color:var(--lime);border-color:var(--lime)}
.btn-signup{
  padding:10px 20px;border-radius:999px;font-size:.85rem;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#BEF264);color:#05121A;border:0;
  white-space:nowrap;box-shadow:0 0 16px rgba(163,230,53,.4);
  transition:.22s var(--ease);
}
.btn-signup:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.7)}
.navbar-toggler{border:1px solid var(--line);border-radius:11px;padding:7px 10px;margin-left:10px}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23A3E635' stroke-width='2.4' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;
}

/* ================= HERO ================= */
.hero-page{position:relative;overflow:hidden;padding:64px 0 70px;isolation:isolate}
.hero-page::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:
    linear-gradient(100deg,rgba(7,7,13,.97) 0%,rgba(7,7,13,.9) 42%,rgba(7,7,13,.5) 100%),
    url('/assets/images/6cae70e0ac6eec00.jpg');
  background-size:cover;background-position:center right;
}
.hero-page::after{
  content:"";position:absolute;top:-25%;left:44%;width:60%;height:150%;z-index:-1;
  transform:skewX(-12deg);
  background:linear-gradient(150deg,rgba(163,230,53,.15) 0%,rgba(6,182,212,.1) 55%,rgba(6,182,212,0) 100%);
  border-left:1px solid rgba(163,230,53,.18);
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.79rem;color:var(--muted-2);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--lime)}
.hero-wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero-copy h1{
  font-size:clamp(1.85rem,4.1vw,2.95rem);font-weight:900;line-height:1.2;
  letter-spacing:-.03em;margin:0 0 18px;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--lime),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--muted);font-size:1.02rem;line-height:1.7;max-width:600px;margin-bottom:26px}
.hero-points{display:grid;gap:12px;margin-bottom:30px;max-width:560px}
.hero-points li{display:flex;align-items:flex-start;gap:11px;font-size:.94rem;color:#E2E8F0}
.hero-points i{color:var(--lime);font-size:.85rem;margin-top:6px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

.hero-panel{
  background:linear-gradient(165deg,rgba(18,18,42,.96),rgba(10,10,24,.92));
  border:1px solid var(--line-lime);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);position:relative;
}
.hero-panel-top{display:flex;align-items:center;gap:20px;margin-bottom:22px}
.ring{
  width:104px;height:104px;flex:0 0 104px;border-radius:50%;position:relative;
  background:conic-gradient(var(--lime) 0 83%,rgba(148,163,184,.18) 83% 100%);
  display:grid;place-items:center;
  box-shadow:0 0 26px rgba(163,230,53,.25);
}
.ring span{
  width:82px;height:82px;border-radius:50%;background:#0B0B1C;
  display:grid;place-items:center;line-height:1.05;
}
.ring b{font-size:1.4rem;font-weight:900;color:var(--lime);display:block;text-align:center}
.ring i{font-style:normal;font-size:.65rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);display:block;text-align:center}
.hero-panel-top h2{font-size:1.05rem;font-weight:800;margin:0 0 6px}
.hero-panel-top p{margin:0;font-size:.85rem;color:var(--muted);line-height:1.6}
.version-list{display:grid;gap:0;border-top:1px solid var(--line)}
.version-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:.87rem;
}
.version-list li span{color:var(--muted)}
.version-list li b{color:#fff;font-weight:700}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;
  font-size:.75rem;font-weight:700;letter-spacing:.02em;
  background:rgba(163,230,53,.1);border:1px solid var(--line-lime);color:#D9F99D;
}
.tag--cyan{background:rgba(6,182,212,.12);border-color:rgba(6,182,212,.35);color:#A5F3FC}

/* ================= STAT STRIP ================= */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat-strip div{background:var(--bg);padding:26px 22px;text-align:left}
.stat-strip b{display:block;font-size:1.5rem;font-weight:900;color:var(--lime);letter-spacing:-.03em}
.stat-strip span{display:block;font-size:.8rem;color:var(--muted);margin-top:4px}

/* ================= BENEFITS ================= */
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.benefit-card{
  background:linear-gradient(165deg,rgba(18,18,42,.92),rgba(11,11,26,.86));
  border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.benefit-card:hover{
  transform:translateY(-5px);border-color:var(--line-lime);
  box-shadow:0 22px 46px -28px rgba(163,230,53,.55);
}
.benefit-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(163,230,53,.12);border:1px solid var(--line-lime);
  color:var(--lime);font-size:1.05rem;margin-bottom:18px;
}
.benefit-card h3{font-size:1.03rem;font-weight:800;margin:0 0 10px;letter-spacing:-.01em}
.benefit-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.68}

/* ================= SPLIT / MEDIA ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split--media{grid-template-columns:.95fr 1.05fr}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:.76rem;color:#E2E8F0;
  background:linear-gradient(180deg,transparent,rgba(7,7,13,.92));
}
.check-list{display:grid;gap:14px;margin-top:22px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:#CBD5E1}
.check-list i{color:var(--cyan);margin-top:6px;font-size:.8rem}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.spec-box{
  background:rgba(18,18,42,.7);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;
}
.spec-box h4{margin:0 0 8px;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan)}
.spec-box p{margin:0;font-size:.88rem;color:#CBD5E1;line-height:1.6}

/* ================= STEPS ================= */
.steps{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:flex-start;
  background:rgba(18,18,42,.7);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.step:hover{border-color:var(--line-lime);transform:translateX(4px)}
.step-num{
  width:50px;height:50px;border-radius:16px;display:grid;place-items:center;
  font-weight:900;font-size:1.05rem;color:#05121A;
  background:linear-gradient(135deg,var(--lime),#BEF264);
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.step h3{margin:0 0 8px;font-size:1.02rem;font-weight:800}
.step p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.68}
.step-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:.78rem;font-weight:700;color:#A5F3FC;
  background:rgba(6,182,212,.12);border:1px solid rgba(6,182,212,.3);
  padding:6px 12px;border-radius:999px;
}

/* ================= FPS / TIPS ================= */
.fps-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.fps-list{display:grid;gap:0;border-top:1px solid var(--line)}
.fps-list li{
  padding:18px 0;border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
}
.fps-list b{display:block;font-size:.95rem;font-weight:800;color:#fff;margin-bottom:5px}
.fps-list p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.65}
.fps-list span.pill{
  font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--lime);background:var(--lime-soft);border:1px solid var(--line-lime);
  padding:5px 10px;border-radius:999px;white-space:nowrap;margin-top:3px;
}
.meter{
  background:rgba(18,18,42,.8);border:1px solid var(--line-lime);
  border-radius:var(--r-lg);padding:26px;
}
.meter h3{margin:0 0 18px;font-size:1rem;font-weight:800}
.meter-row{display:grid;gap:8px;margin-bottom:18px}
.meter-row small{font-size:.79rem;color:var(--muted);display:flex;justify-content:space-between}
.bar{height:9px;border-radius:999px;background:rgba(148,163,184,.16);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.bar i.warn{background:linear-gradient(90deg,#F59E0B,#F43F5E)}

/* ================= CODE / CTA ================= */
.code-band{
  background:linear-gradient(120deg,rgba(163,230,53,.14),rgba(6,182,212,.1));
  border:1px solid var(--line-lime);border-radius:var(--r-lg);
  padding:42px;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
}
.code-band h2{margin:0 0 14px;font-size:clamp(1.35rem,2.6vw,1.85rem);font-weight:900;letter-spacing:-.02em}
.code-band p{margin:0 0 22px;color:#D1FAE5;font-size:.95rem;line-height:1.7}
.code-box{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(7,7,13,.72);border:1px dashed var(--line-lime);
  border-radius:var(--r);padding:18px 22px;margin-bottom:22px;
}
.code-box span{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);display:block;margin-bottom:4px}
.code-box b{font-size:1.35rem;font-weight:900;letter-spacing:.28em;color:var(--lime)}
.code-box i{font-style:normal;font-size:1.4rem;color:var(--cyan)}
.code-steps{display:grid;gap:12px}
.code-steps li{display:flex;gap:11px;font-size:.9rem;color:#E2E8F0;align-items:flex-start}
.code-steps i{color:var(--lime);margin-top:6px;font-size:.75rem}

/* ================= FAQ ================= */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-list details{
  background:rgba(18,18,42,.68);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 22px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-list details:hover{border-color:var(--line-lime)}
.faq-list details[open]{border-color:var(--line-lime);background:rgba(18,18,42,.92)}
.faq-list summary{
  cursor:pointer;font-weight:700;font-size:.96rem;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:flex-start;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--lime);font-size:.8rem;margin-top:5px}
.faq-list details[open] summary::after{content:"\f068"}
.faq-list p{margin:12px 0 0;color:var(--muted);font-size:.9rem;line-height:1.7}

/* ================= NEWS LIST ================= */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  background:rgba(18,18,42,.72);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.post-card:hover{transform:translateY(-5px);border-color:var(--line-lime)}
.post-kicker{font-size:.7rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.post-title{font-size:1rem;font-weight:800;line-height:1.45;margin:0}
.post-title a:hover{color:var(--lime)}
.post-desc{margin:0;color:var(--muted);font-size:.87rem;line-height:1.65}
.post-empty{
  grid-column:1/-1;padding:30px;text-align:center;color:var(--muted);
  border:1px dashed var(--line);border-radius:var(--r);font-size:.9rem;
}
.post-more{margin-top:30px}

/* ================= FINAL CTA ================= */
.final-cta{
  background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%);
  border-top:1px solid var(--line);padding:76px 0;
}
.final-inner{
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;
}
.final-inner h2{margin:0 0 14px;font-size:clamp(1.4rem,2.9vw,2.05rem);font-weight:900;letter-spacing:-.025em}
.final-inner p{margin:0;color:var(--muted);font-size:.96rem;line-height:1.7;max-width:620px}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ================= FOOTER ================= */
.site-footer{background:#05050A;border-top:1px solid var(--line);padding:62px 0 26px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:1rem;font-weight:800}
.footer-about{margin:0;color:var(--muted);font-size:.88rem;line-height:1.72;max-width:420px}
.footer-col h3{font-size:.79rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin:0 0 16px;font-weight:800}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--muted);font-size:.88rem}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  padding-top:22px;font-size:.8rem;color:var(--muted-2);
}
.footer-pay{display:flex;flex-wrap:wrap;gap:9px}
.footer-pay span{
  padding:6px 12px;border-radius:999px;border:1px solid var(--line);
  font-size:.74rem;color:var(--muted);
}

/* ================= FAB ================= */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 20px;border-radius:999px;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(163,230,53,.5);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#fff;font-weight:800;font-size:.82rem;
  opacity:.85;
  transition:transform .24s var(--ease),opacity .24s var(--ease),box-shadow .24s var(--ease);
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab i{color:var(--lime);font-size:.95rem}
.fab:hover{opacity:1;transform:scale(1.06);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.75)}
.fab:active{transform:scale(.95)}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}
  50%{box-shadow:0 0 30px rgba(163,230,53,.6)}
}

/* ================= RESPONSIVE ================= */
@media (max-width:1024px){
  .hero-wrap{grid-template-columns:1fr;gap:38px}
  .section-head--split{grid-template-columns:1fr;gap:18px;align-items:start}
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
  .split,.split--media,.fps-grid,.faq-wrap,.code-band,.final-inner{grid-template-columns:1fr;gap:32px}
  .final-actions{justify-content:flex-start}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .section{padding:62px 0}
  .hero-page{padding:44px 0 56px}
  .nav-links{margin-left:0;margin-top:14px;flex-direction:column;align-items:stretch;gap:4px}
  .nav-links .nav-link{padding:12px 16px;border-radius:14px}
  .nav-actions{margin:14px 0 6px;justify-content:flex-start}
  .navbar-collapse{
    background:rgba(11,11,26,.98);border:1px solid var(--line);
    border-radius:var(--r);padding:16px;margin-top:14px;
  }
  .code-band{padding:32px 24px}
  .benefit-grid{grid-template-columns:1fr}
  .step{grid-template-columns:46px 1fr;padding:20px}
  .step-num{width:42px;height:42px;border-radius:13px;font-size:.95rem}
  .fab{left:12px;bottom:84px;padding:11px 16px;font-size:.76rem}
}
@media (max-width:520px){
  .stat-strip{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-panel{padding:22px}
  .hero-panel-top{flex-direction:column;align-items:flex-start;gap:16px}
  .code-box{flex-direction:column;align-items:flex-start;gap:10px}
  .btn-neon,.btn-ghost,.btn-cyan{width:100%}
  .hero-cta,.final-actions{width:100%}
}

/* roulang page: category3 */
:root{
  --bg:#07070D;
  --bg-soft:#0E0E1E;
  --bg-card:#12122A;
  --lime:#A3E635;
  --lime-deep:#65A30D;
  --lime-soft:rgba(163,230,53,.14);
  --cyan:#06B6D4;
  --cyan-soft:rgba(6,182,212,.14);
  --pink:#F43F5E;
  --pink-soft:rgba(244,63,94,.14);
  --text:#FFFFFF;
  --muted:#94A3B8;
  --muted-2:#64748B;
  --line:rgba(148,163,184,.16);
  --line-lime:rgba(163,230,53,.3);
  --r-sm:12px;
  --r:18px;
  --r-lg:28px;
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::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,sans-serif;
  font-size:16px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--lime)}
h1,h2,h3,h4{margin:0 0 12px;font-weight:800;line-height:1.26;letter-spacing:-.02em}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:8px}
.container{max-width:1180px;padding-left:20px;padding-right:20px}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,7,13,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:0;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;padding:0;margin-right:6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:#05121A;font-weight:900;font-size:.82rem;letter-spacing:-.04em;
  box-shadow:0 0 18px rgba(163,230,53,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:.95rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.brand-text span{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links .nav-link{
  padding:9px 15px;border-radius:999px;font-size:.9rem;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links .nav-link.active{
  color:#05121A;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#D9F99D);
  box-shadow:0 0 18px rgba(163,230,53,.3);
}
.nav-actions{display:flex;align-items:center;gap:9px;margin-left:16px}
.btn-login{
  padding:9px 16px;border-radius:999px;font-size:.85rem;font-weight:700;
  color:var(--lime);border:1px solid rgba(163,230,53,.36);background:transparent;
  white-space:nowrap;transition:.22s var(--ease);
}
.btn-login:hover{background:rgba(163,230,53,.12);color:var(--lime);border-color:var(--lime)}
.btn-signup{
  padding:10px 20px;border-radius:999px;font-size:.85rem;font-weight:800;
  background:linear-gradient(135deg,var(--lime),#BEF264);color:#05121A;border:0;
  white-space:nowrap;box-shadow:0 0 16px rgba(163,230,53,.4);
  transition:.22s var(--ease);
}
.btn-signup:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 26px rgba(163,230,53,.7)}
.navbar-toggler{border:1px solid var(--line);border-radius:11px;padding:7px 10px;margin-left:10px}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23A3E635' stroke-width='2.4' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;
}

/* ============ BUTTONS ============ */
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:999px;border:0;
  background:linear-gradient(135deg,var(--lime) 0%,#D9F99D 40%,var(--cyan) 130%);
  color:#05121A;font-weight:800;font-size:.98rem;letter-spacing:-.01em;
  box-shadow:0 0 0 1px rgba(163,230,53,.4),0 14px 34px -14px rgba(163,230,53,.75);
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),filter .22s;
  cursor:pointer;
}
.btn-neon:hover,.btn-neon:focus-visible{
  transform:translateY(-3px);color:#05121A;filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(163,230,53,.6),0 20px 44px -14px rgba(163,230,53,.9);
}
.btn-neon:active{transform:translateY(0) scale(.985)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  border:1px solid rgba(148,163,184,.34);background:transparent;
  color:var(--text);font-weight:700;font-size:.9rem;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .22s var(--ease);
}
.btn-outline:hover{border-color:var(--lime);background:rgba(163,230,53,.08);color:var(--text);transform:translateY(-2px)}

/* ============ SECTION BASE ============ */
.section{padding:82px 0;position:relative}
.section--soft{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--deep{background:linear-gradient(160deg,#0B0B1C 0%,#07070D 70%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.71rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--lime);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}
.section-title{font-size:clamp(1.5rem,3.1vw,2.2rem);font-weight:800;line-height:1.28;letter-spacing:-.02em;margin-bottom:16px}
.section-lead{color:var(--muted);font-size:1rem;line-height:1.7;max-width:720px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--split{max-width:none;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:end;margin-bottom:48px}
.text-accent{color:var(--lime)}
.text-cyan{color:var(--cyan)}

/* ============ HERO ============ */
.hero-cat{
  position:relative;overflow:hidden;padding:74px 0 78px;
  border-bottom:1px solid var(--line);isolation:isolate;
}
.hero-cat-bg{
  position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(100deg,rgba(7,7,13,.98) 0%,rgba(7,7,13,.92) 44%,rgba(14,14,30,.7) 100%),
    url('/assets/images/d8fd7c399f35ea20.jpg') center right/cover no-repeat;
}
.hero-cat::after{
  content:"";position:absolute;top:-150px;right:-90px;width:560px;height:560px;z-index:-1;
  background:radial-gradient(circle,rgba(6,182,212,.22),transparent 62%);
  pointer-events:none;
}
.hero-cat-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:52px;align-items:center}
.hero-copy h1{font-size:clamp(1.75rem,3.9vw,2.85rem);font-weight:900;line-height:1.18;letter-spacing:-.025em;margin-bottom:18px}
.hero-lead{color:var(--muted);font-size:1.03rem;line-height:1.72;max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;border-top:1px solid var(--line);padding-top:24px;max-width:640px}
.hero-facts li{display:flex;flex-direction:column;gap:4px}
.hero-facts b{font-size:1.15rem;font-weight:900;color:var(--lime);letter-spacing:-.02em}
.hero-facts span{font-size:.82rem;color:var(--muted-2);line-height:1.45}
.hero-panel{
  display:flex;flex-direction:column;gap:18px;
  padding:22px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(18,18,42,.92),rgba(10,10,22,.92));
  border:1px solid var(--line-lime);
  box-shadow:var(--shadow);
}
.countdown{display:flex;flex-direction:column;gap:12px}
.countdown-label{font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.countdown-clock{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.countdown-clock span{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:12px 6px;border-radius:var(--r-sm);
  background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.28);
}
.countdown-clock b{font-size:1.4rem;font-weight:900;color:var(--cyan);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.countdown-clock i{font-style:normal;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}
.hero-figure{margin:0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease)}
.hero-panel:hover .hero-figure img{transform:scale(1.04)}

/* ============ SPLIT BLOCK ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.check-list li{
  display:flex;gap:14px;padding:15px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list .tick{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;margin-top:2px;
  display:grid;place-items:center;
  background:var(--lime-soft);border:1px solid var(--line-lime);
  color:var(--lime);font-size:.78rem;font-weight:900;
}
.check-list b{display:block;font-size:.96rem;font-weight:700;margin-bottom:3px}
.check-list p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.62}
.quote-box{
  padding:26px 28px;border-radius:var(--r);
  background:linear-gradient(150deg,rgba(163,230,53,.09),rgba(6,182,212,.06));
  border:1px solid var(--line-lime);
}
.quote-box p{color:#E2E8F0;font-size:1rem;line-height:1.72;margin-bottom:0}

/* ============ TIP GRID ============ */
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.tip-card{
  position:relative;padding:28px 24px 26px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(18,18,42,.92),rgba(10,10,22,.92));
  border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.tip-card:hover{
  transform:translateY(-6px);
  border-color:var(--line-lime);
  box-shadow:0 0 0 1px rgba(163,230,53,.2),0 26px 50px -28px rgba(163,230,53,.55);
}
.tip-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(163,230,53,.22),rgba(6,182,212,.16));
  border:1px solid var(--line-lime);
  color:var(--lime);font-weight:900;font-size:.85rem;
}
.tip-card h3{font-size:1.04rem;margin-bottom:10px}
.tip-card p{color:var(--muted);font-size:.9rem;line-height:1.68;margin:0}
.tip-tag{
  position:absolute;top:20px;right:20px;
  padding:4px 10px;border-radius:999px;
  font-size:.65rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  background:var(--pink-soft);color:#FDA4AF;border:1px solid rgba(244,63,94,.32);
}

/* ============ SCENARIO ============ */
.scenario-list{display:grid;gap:16px}
.scenario{
  display:grid;grid-template-columns:230px 1fr auto;gap:28px;align-items:center;
  padding:24px 26px;border-radius:var(--r);
  background:rgba(18,18,42,.55);border:1px solid var(--line);
  transition:border-color .28s var(--ease),background .28s var(--ease);
}
.scenario:hover{border-color:rgba(6,182,212,.4);background:rgba(18,18,42,.85)}
.scenario h3{margin:0;font-size:1.02rem}
.scenario p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.65}
.scenario .badge-soft{
  padding:7px 14px;border-radius:999px;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  background:var(--cyan-soft);color:#67E8F9;border:1px solid rgba(6,182,212,.32);white-space:nowrap;
}

/* ============ STATS ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat{
  padding:26px 22px;border-radius:var(--r);
  background:linear-gradient(165deg,rgba(18,18,42,.9),rgba(9,9,20,.9));
  border:1px solid var(--line);
}
.stat b{display:block;font-size:clamp(1.6rem,3vw,2.1rem);font-weight:900;letter-spacing:-.03em;color:var(--lime);line-height:1.1}
.stat span{display:block;margin-top:8px;color:var(--muted);font-size:.86rem;line-height:1.6}
.table-wrap{margin-top:26px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(9,9,20,.6)}
.table-wrap table{width:100%;border-collapse:collapse;font-size:.9rem}
.table-wrap thead th{
  text-align:left;padding:15px 20px;background:rgba(163,230,53,.08);
  color:var(--lime);font-size:.74rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.table-wrap tbody td{padding:15px 20px;border-top:1px solid var(--line);color:var(--muted)}
.table-wrap tbody td:first-child{color:#fff;font-weight:700}
.table-wrap tbody tr:hover{background:rgba(6,182,212,.06)}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;counter-reset:step}
.step{
  position:relative;padding:26px 20px 24px;border-radius:var(--r);
  background:rgba(18,18,42,.72);border:1px solid var(--line);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.step:hover{transform:translateY(-5px);border-color:var(--line-lime)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:1.6rem;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(163,230,53,.6);
  margin-bottom:14px;
}
.step h3{font-size:.96rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.85rem;line-height:1.62;margin:0}

/* ============ TIERS ============ */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.tier{
  display:flex;flex-direction:column;gap:16px;padding:30px 26px;border-radius:var(--r-lg);
  background:linear-gradient(170deg,rgba(18,18,42,.92),rgba(9,9,20,.94));
  border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.tier:hover{transform:translateY(-6px);border-color:rgba(6,182,212,.4)}
.tier--hot{
  border-color:var(--line-lime);
  box-shadow:0 0 0 1px rgba(163,230,53,.25),0 30px 60px -32px rgba(163,230,53,.6);
}
.tier-name{font-size:.74rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.tier h3{font-size:1.15rem;margin:0}
.tier .tier-value{font-size:1.9rem;font-weight:900;letter-spacing:-.03em;color:#fff}
.tier .tier-value small{font-size:.8rem;font-weight:600;color:var(--muted-2);letter-spacing:0;margin-left:6px}
.tier ul{display:grid;gap:10px}
.tier li{display:flex;gap:10px;font-size:.88rem;color:var(--muted);line-height:1.6}
.tier li::before{content:"›";color:var(--lime);font-weight:900}
.tier .btn-outline,.tier .btn-neon{margin-top:auto;width:100%}

/* ============ REVIEWS ============ */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.review{
  padding:26px 24px;border-radius:var(--r);
  background:rgba(18,18,42,.6);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:14px;
}
.review .stars{color:var(--lime);font-size:.9rem;letter-spacing:2px}
.review p{margin:0;color:#CBD5E1;font-size:.92rem;line-height:1.7}
.review .who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.review .avatar{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(163,230,53,.24),rgba(6,182,212,.2));
  color:#fff;font-weight:800;font-size:.82rem;
}
.review .who b{display:block;font-size:.88rem}
.review .who span{font-size:.76rem;color:var(--muted-2)}

/* ============ NEWS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
  border-radius:var(--r);overflow:hidden;
  background:rgba(18,18,42,.65);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.news-card:hover{transform:translateY(-5px);border-color:rgba(6,182,212,.42)}
.news-card .news-link{display:flex;flex-direction:column;gap:10px;padding:24px 22px;height:100%}
.news-cat{
  align-self:flex-start;padding:4px 11px;border-radius:999px;
  font-size:.66rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  background:var(--cyan-soft);color:#67E8F9;border:1px solid rgba(6,182,212,.3);
}
.news-card h3{font-size:.98rem;margin:0;line-height:1.45}
.news-card p{color:var(--muted);font-size:.86rem;line-height:1.62;margin:0}
.news-card time{font-size:.74rem;color:var(--muted-2);letter-spacing:.06em;margin-top:auto}
.news-empty{color:var(--muted);font-size:.95rem}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px}
.accordion-item{
  background:rgba(18,18,42,.6);border:1px solid var(--line);border-radius:var(--r)!important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:#fff;font-weight:700;font-size:.98rem;
  padding:20px 24px;box-shadow:none!important;line-height:1.5;
}
.accordion-button:not(.collapsed){color:var(--lime);background:rgba(163,230,53,.06)}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A3E635'%3E%3Cpath d='M8 2a.5.5 0 0 1 .5.5v5h5a.5.5 0 0 1 0 1h-5v5a.5.5 0 0 1-1 0v-5h-5a.5.5 0 0 1 0-1h5v-5A.5.5 0 0 1 8 2z'/%3E%3C/svg%3E");
  background-size:1rem;width:1rem;height:1rem;
}
.accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A3E635'%3E%3Cpath d='M4 8a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 0 1h-7A.5.5 0 0 1 4 8z'/%3E%3C/svg%3E");
  transform:rotate(180deg);
}
.accordion-body{padding:0 24px 22px;color:var(--muted);font-size:.92rem;line-height:1.72}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;overflow:hidden;padding:78px 0;
  background:
    linear-gradient(100deg,rgba(7,7,13,.96),rgba(14,14,30,.82)),
    url('/assets/images/ca02cbe989e6437b.jpg') center/cover no-repeat;
  border-top:1px solid var(--line-lime);
}
.cta-inner{display:grid;grid-template-columns:1.3fr .7fr;gap:42px;align-items:center}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.15rem);margin-bottom:14px}
.cta-inner p{color:var(--muted);font-size:1rem;line-height:1.72;max-width:640px;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-note{font-size:.8rem;color:var(--muted-2);margin-top:16px}

/* ============ FOOTER ============ */
.site-footer{
  background:#05050B;border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:42px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:1rem;font-weight:800}
.footer-about{color:var(--muted);font-size:.88rem;line-height:1.72;margin:0;max-width:460px}
.footer-col h3{font-size:.76rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--lime);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--muted);font-size:.88rem}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  padding-top:24px;border-top:1px solid var(--line);
}
.footer-bottom > span{color:var(--muted-2);font-size:.82rem}
.footer-pay{display:flex;flex-wrap:wrap;gap:9px}
.footer-pay span{
  padding:6px 13px;border-radius:999px;font-size:.74rem;font-weight:700;
  color:var(--muted);background:rgba(148,163,184,.08);border:1px solid var(--line);
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1050;
  display:grid;place-items:center;width:56px;height:56px;border-radius:999px;
  background:rgba(7,7,13,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),
    linear-gradient(135deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s var(--ease),transform .25s var(--ease),box-shadow .3s var(--ease);
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 30px rgba(163,230,53,.65)}
.fab:active{transform:scale(.94)}
.fab svg{width:24px;height:24px;stroke:var(--lime)}
.fab-badge{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:999px;
  background:var(--pink);border:2px solid #05050B;
  animation:fabPulse 1.6s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .hero-cat-inner{grid-template-columns:1.15fr .85fr;gap:34px}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1024px){
  .section{padding:68px 0}
  .tip-grid,.review-grid,.news-grid,.tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scenario{grid-template-columns:1fr;gap:12px}
  .scenario .badge-soft{justify-self:start}
}
@media (max-width:991.98px){
  .site-header .navbar-collapse{
    background:rgba(10,10,22,.98);
    border:1px solid var(--line);border-radius:var(--r);
    margin-top:12px;padding:14px;
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:4px;margin-left:0}
  .nav-links .nav-link{padding:11px 14px;border-radius:12px;text-align:left}
  .nav-actions{margin:14px 0 0;display:flex;gap:10px}
  .nav-actions a{flex:1;text-align:center}
  .hero-cat{padding:56px 0 62px}
  .hero-cat-inner{grid-template-columns:1fr;gap:32px}
  .hero-cat-bg{background-image:linear-gradient(180deg,rgba(7,7,13,.96),rgba(7,7,13,.88)),url('/assets/images/d8fd7c399f35ea20.jpg')}
  .split{grid-template-columns:1fr;gap:30px}
  .section-head--split{grid-template-columns:1fr;gap:20px;align-items:start}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .section{padding:56px 0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-facts{grid-template-columns:1fr;gap:14px}
  .hero-facts li{flex-direction:row;align-items:baseline;gap:10px}
  .hero-facts b{font-size:1rem;min-width:82px}
  .table-wrap{overflow-x:auto}
  .table-wrap table{min-width:560px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .fab{bottom:88px}
}
@media (max-width:520px){
  .tip-grid,.review-grid,.news-grid,.tier-grid,.stat-grid,.steps{grid-template-columns:1fr}
  .hero-copy h1{font-size:1.6rem}
  .hero-actions{gap:10px}
  .btn-neon,.btn-outline{width:100%}
  .cta-actions .btn-neon,.cta-actions .btn-outline{width:100%}
  .accordion-button{font-size:.9rem;padding:17px 18px}
  .accordion-body{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* 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}