/* roulang page: index */
:root{
  --bg:#030712;
  --bg-soft:#071127;
  --bg-mid:#0A1A3C;
  --surface:rgba(14,30,62,.55);
  --surface-strong:rgba(9,20,44,.86);
  --line:rgba(96,165,250,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --txt-2:#94A3B8;
  --txt-3:#5B7091;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --mint:#22D3EE;
  --grad:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --glow:0 0 24px rgba(56,189,248,.35);
  --r:18px;
  --r-sm:12px;
  --shadow:0 20px 55px rgba(2,8,23,.65);
  --max:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:78px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.4px}
p{margin:0}
button,input{font-family:inherit}
::selection{background:rgba(56,189,248,.35)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#030712}
::-webkit-scrollbar-thumb{background:#1e3a8a;border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:#2563EB}

.container{width:min(100% - 34px,var(--max));margin-inline:auto}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);box-shadow:var(--glow);color:#04121f;font-weight:800;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.3px}
.brand-sub{font-size:11px;color:var(--txt-3);letter-spacing:.6px;text-transform:uppercase;font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.btn-ghost{
  padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--cyan);
  background:transparent;border:1px solid rgba(56,189,248,.4);cursor:pointer;
  transition:.2s;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan)}
.btn-solid{
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;color:#04121f;
  background:var(--grad);border:none;cursor:pointer;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);transition:transform .2s,box-shadow .25s;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.62)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.08);
  border:1px solid var(--line-2);color:var(--cyan);font-size:17px;cursor:pointer;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:13px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(56,189,248,.06);color:#E2F4FF;border:1px solid rgba(56,189,248,.45);
}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ===== HERO ===== */
.hero{
  position:relative;overflow:hidden;padding:74px 0 70px;
  background:
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.94) 55%,rgba(3,7,18,1) 100%),
    url('/assets/images/bef6d0332327f873.jpg') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(720px 380px at 12% 8%,rgba(56,189,248,.16),transparent 68%),
             radial-gradient(620px 340px at 88% 82%,rgba(37,99,235,.18),transparent 70%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  font-size:12.5px;font-weight:600;color:var(--cyan);letter-spacing:.4px;text-transform:uppercase;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  font-size:clamp(30px,4.1vw,47px);margin:22px 0 20px;line-height:1.2;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#38BDF8,#2563EB 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:16.5px;color:#C7D6EA;max-width:640px;line-height:1.75}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--txt-2)}
.hero-meta i{color:var(--cyan)}

.team-panel{
  background:var(--surface-strong);border:1px solid var(--line-2);border-radius:22px;
  padding:28px;backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.team-panel h3{font-size:19px;margin-bottom:6px}
.team-panel .tp-sub{font-size:13.5px;color:var(--txt-2);margin-bottom:20px}
.team-count{display:flex;align-items:baseline;gap:9px;margin-bottom:12px}
.team-count b{font-size:31px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.team-count em{font-style:normal;font-size:13.5px;color:var(--txt-2)}
.progress{height:9px;border-radius:99px;background:rgba(37,99,235,.2);overflow:hidden}
.progress i{display:block;height:100%;border-radius:99px;background:var(--grad);box-shadow:0 0 14px rgba(56,189,248,.7)}
.team-note{margin-top:11px;font-size:13px;color:var(--txt-3)}
.team-list{margin-top:22px;border-top:1px solid var(--line);padding-top:18px;display:grid;gap:12px}
.team-list li{display:flex;align-items:center;gap:11px;font-size:14px;color:#CBD9EC}
.team-list i{color:var(--cyan);width:18px;text-align:center}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(37,99,235,.16);border:1px solid var(--line);color:#A9C4E6;
}

/* ===== STATS BAR ===== */
.stats-bar{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(7,17,39,.9),rgba(10,26,60,.75),rgba(7,17,39,.9));
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.stat-item{background:rgba(3,7,18,.72);padding:26px 20px;text-align:left}
.stat-num{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.5px}
.stat-num span{font-size:16px;color:var(--cyan)}
.stat-label{font-size:13px;color:var(--txt-2);margin-top:5px}

/* ===== SECTIONS ===== */
.section{padding:74px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(7,17,39,.65),rgba(3,7,18,0));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.sec-head{max-width:800px;margin-bottom:40px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.sec-title{font-size:clamp(23px,2.8vw,33px);margin-bottom:15px}
.sec-desc{font-size:15.5px;color:var(--txt-2);line-height:1.75}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

/* ===== FEATURE CARDS ===== */
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;backdrop-filter:blur(12px);transition:border-color .25s,transform .25s,box-shadow .25s;
}
.feature-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:0 18px 44px rgba(2,8,23,.65)}
.fc-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:17px;
  background:rgba(37,99,235,.18);border:1px solid rgba(56,189,248,.28);color:var(--cyan);font-size:19px;
}
.feature-card h3{font-size:17px;margin-bottom:9px}
.feature-card p{font-size:14.4px;color:var(--txt-2);line-height:1.7}

/* ===== EVENT / PROGRESS CARDS ===== */
.event-card{
  background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;display:flex;flex-direction:column;gap:13px;
}
.event-card .ec-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.event-card h3{font-size:16.5px}
.event-card p{font-size:14px;color:var(--txt-2);line-height:1.7}
.tag{
  font-size:11.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;white-space:nowrap;
}
.tag-hot{background:rgba(37,99,235,.2);color:#7DD3FC;border:1px solid rgba(56,189,248,.4)}
.tag-soon{background:rgba(148,163,184,.13);color:#CBD5E1;border:1px solid rgba(148,163,184,.28)}
.ec-foot{display:flex;justify-content:space-between;font-size:12.5px;color:var(--txt-3);margin-top:2px}

/* ===== ROADMAP ===== */
.rm-item{
  display:flex;gap:20px;padding:22px 0;border-bottom:1px dashed var(--line);
}
.rm-item:last-child{border-bottom:none}
.rm-num{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:var(--cyan);
  background:rgba(37,99,235,.14);border:1px solid rgba(56,189,248,.3);
}
.rm-item h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:11px;flex-wrap:wrap}
.rm-item p{font-size:14.4px;color:var(--txt-2);line-height:1.7}

/* ===== CHANGELOG ===== */
.log-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cyan);
  border-radius:var(--r-sm);padding:22px 24px;
}
.log-ver{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.log-ver b{font-size:16px;color:#fff}
.log-ver time{font-size:12.5px;color:var(--txt-3)}
.log-item ul{display:grid;gap:9px}
.log-item li{font-size:14.3px;color:var(--txt-2);padding-left:20px;position:relative;line-height:1.68}
.log-item li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(56,189,248,.9);
}

/* ===== USP ===== */
.usp{
  padding:26px 24px;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(14,30,62,.7),rgba(7,17,39,.5));
}
.usp-num{
  font-size:34px;font-weight:800;line-height:1;margin-bottom:14px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.usp h3{font-size:17px;margin-bottom:10px}
.usp p{font-size:14.4px;color:var(--txt-2);line-height:1.72}

/* ===== DEVICE ===== */
.device-card{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);
  transition:border-color .25s,transform .25s;
}
.device-card:hover{border-color:var(--line-2);transform:translateY(-4px)}
.device-card img{width:100%;height:178px;object-fit:cover;opacity:.9}
.device-body{padding:22px 22px 26px}
.device-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.device-head i{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:16px;
  background:rgba(37,99,235,.18);color:var(--cyan);border:1px solid rgba(56,189,248,.28);
}
.device-head h3{font-size:16.5px}
.device-body p{font-size:14.2px;color:var(--txt-2);line-height:1.72}

/* ===== GUIDE ===== */
.guide-block{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:28px;margin-bottom:20px;
}
.guide-block h3{
  font-size:17.5px;line-height:1.5;margin-bottom:14px;padding-left:18px;position:relative;
}
.guide-block h3::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:9px;
  background:var(--grad);
}
.guide-block p{font-size:14.6px;color:var(--txt-2);line-height:1.8}
.guide-warn{
  margin-top:16px;padding:15px 18px;border-radius:var(--r-sm);
  background:rgba(37,99,235,.12);border:1px solid rgba(56,189,248,.26);
  font-size:13.8px;color:#BCD3EF;line-height:1.7;
}

/* ===== COMPARE ===== */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table.cmp{width:100%;border-collapse:collapse;min-width:640px}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;font-size:14.4px;border-bottom:1px solid var(--line)}
table.cmp thead th{
  font-size:13px;text-transform:uppercase;letter-spacing:.8px;font-weight:700;
  background:rgba(7,17,39,.9);color:var(--txt-2);
}
table.cmp thead th:nth-child(2){color:var(--cyan)}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp td:first-child{font-weight:600;color:#fff}
table.cmp td:nth-child(2){color:#B9D7F2}
table.cmp td:nth-child(3){color:var(--txt-3)}
table.cmp tbody tr:hover{background:rgba(37,99,235,.06)}

/* ===== REVIEWS ===== */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;
}
.review-stars{color:#38BDF8;font-size:13px;margin-bottom:12px;letter-spacing:2px}
.review-text{font-size:14.6px;color:#CBD9EC;line-height:1.75;margin-bottom:16px}
.review-who{display:flex;align-items:center;gap:11px;font-size:13px;color:var(--txt-2)}
.review-av{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:13px;
  background:var(--grad);color:#04121f;
}
.review-who b{color:#fff;font-weight:600}

/* ===== CATEGORY WALL ===== */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  display:block;padding:28px 24px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(14,30,62,.75),rgba(7,17,39,.45));
  border:1px solid var(--line);transition:border-color .25s,transform .25s,box-shadow .25s;
}
.cat-card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:0 18px 44px rgba(2,8,23,.6)}
.cat-card i{color:var(--cyan);font-size:20px;margin-bottom:16px;display:block}
.cat-card h3{font-size:17px;margin-bottom:10px}
.cat-card p{font-size:14.2px;color:var(--txt-2);line-height:1.7}
.cat-more{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13.5px;font-weight:600;color:var(--cyan)}

/* ===== NEWS ===== */
.news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:30px;align-items:start}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{
  display:block;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:var(--surface);transition:border-color .25s,transform .25s;
}
.news-card:hover{border-color:var(--line-2);transform:translateY(-4px)}
.news-thumb{height:150px;overflow:hidden;background:#0A1A3C}
.news-thumb img{width:100%;height:100%;object-fit:cover;opacity:.88}
.news-body{padding:20px}
.news-meta{display:flex;gap:14px;font-size:12px;color:var(--txt-3);margin-bottom:10px}
.news-meta span:first-child{color:var(--cyan);font-weight:600}
.news-body h3{font-size:15.8px;line-height:1.45;margin-bottom:9px}
.news-body p{font-size:13.8px;color:var(--txt-2);line-height:1.68}
.news-empty{
  padding:34px 26px;border:1px dashed var(--line-2);border-radius:var(--r);
  color:var(--txt-2);font-size:14.5px;background:rgba(7,17,39,.5);
}
.side-panel{
  background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--r);padding:26px;
  position:sticky;top:96px;
}
.side-panel h3{font-size:17px;margin-bottom:14px}
.side-panel p{font-size:14.2px;color:var(--txt-2);line-height:1.72}
.side-panel ul{margin-top:18px;display:grid;gap:12px}
.side-panel li{display:flex;gap:10px;font-size:14px;color:#CBD9EC}
.side-panel li i{color:var(--cyan);margin-top:4px}

/* ===== SUBSCRIBE ===== */
.sub-wrap{
  border-radius:24px;border:1px solid var(--line-2);padding:44px;
  background:
    linear-gradient(120deg,rgba(7,17,39,.94),rgba(10,26,60,.86)),
    url('/assets/images/7a863c4eb8ee2922.jpg') center/cover no-repeat;
  display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;
}
.sub-wrap h2{font-size:clamp(21px,2.5vw,29px);margin-bottom:14px}
.sub-wrap p{font-size:14.8px;color:#C4D5EC;line-height:1.75}
.sub-form{display:flex;gap:11px;margin-top:22px;flex-wrap:wrap}
.sub-input{
  flex:1;min-width:210px;padding:15px 18px;border-radius:13px;
  background:rgba(3,7,18,.8);border:1px solid var(--line-2);color:#fff;font-size:14.5px;
}
.sub-input::placeholder{color:var(--txt-3)}
.sub-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.sub-note{margin-top:14px;font-size:13.4px;color:#8FE3B0}

/* ===== ASSURE ===== */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.assure-item{
  padding:24px 22px;border-radius:var(--r);border:1px solid var(--line);
  background:rgba(14,30,62,.45);
}
.assure-item i{font-size:20px;color:var(--cyan);margin-bottom:14px;display:block}
.assure-item h4{font-size:15.5px;margin-bottom:8px}
.assure-item p{font-size:13.8px;color:var(--txt-2);line-height:1.68}

/* ===== FOOTER ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,17,39,.9),rgba(3,7,18,1));
  padding:60px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--txt-2);line-height:1.75;max-width:330px}
.footer-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.fb-badge{
  padding:6px 12px;border-radius:8px;font-size:11.5px;font-weight:700;letter-spacing:.5px;
  background:rgba(37,99,235,.16);border:1px solid var(--line);color:#9FC4E8;
}
.footer-col h4{font-size:14px;text-transform:uppercase;letter-spacing:1px;color:#fff;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--txt-2);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}
.footer-bottom a{color:var(--txt-2)}
.footer-bottom a:hover{color:var(--cyan)}

/* ===== BOTTOM CTA ===== */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(3,7,18,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line-2);
}
.bottom-cta .bc-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;padding:13px 0;
}
.bc-text{display:flex;flex-direction:column;gap:2px}
.bc-text b{font-size:14.5px;color:#fff}
.bc-text span{font-size:12.5px;color:var(--txt-2)}
.bc-text span em{font-style:normal;color:var(--cyan);font-weight:700}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:100px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  height:56px;padding:0 20px 0 16px;border-radius:999px;
  background:rgba(7,7,13,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  color:#E6F6FF;font-size:13.5px;font-weight:600;
  transition:transform .22s,box-shadow .25s,opacity .22s;opacity:.86;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab i{font-size:17px;color:#38BDF8}
.fab:hover{opacity:1;transform:scale(1.06);box-shadow:0 0 32px rgba(56,189,248,.72)}
.fab:active{transform:scale(.96)}
.fab .fab-dot{
  position:absolute;top:6px;right:8px;width:11px;height:11px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px #F43F5E;animation:blink 1.4s infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(56,189,248,.35)}50%{box-shadow:0 0 30px rgba(56,189,248,.6)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== RESPONSIVE ===== */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .team-panel{max-width:620px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-layout{grid-template-columns:1fr}
  .side-panel{position:static}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav-links{
    display:none;position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:14px 17px 20px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-2);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15px}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  .nav-actions{margin-left:0}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .sub-wrap{grid-template-columns:1fr;padding:32px 26px}
  .review-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:52px 0 56px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .brand-sub{display:none}
  .btn{padding:14px 22px;font-size:14.4px}
  .sub-wrap{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:520px){
  body{font-size:15.4px;padding-bottom:96px}
  .grid-3{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .nav-actions .btn-ghost{padding:8px 12px;font-size:13px}
  .nav-actions .btn-solid{padding:9px 13px;font-size:13px}
  .brand-name{font-size:16px}
  .hero h1{font-size:26px}
  .bottom-cta .bc-inner{flex-direction:column;align-items:stretch;gap:10px}
  .bottom-cta .btn{width:100%}
  .fab{bottom:132px;height:50px;padding:0 16px}
  .fab span{display:none}
  .fab{padding:0;width:50px;justify-content:center}
  .rm-item{flex-direction:column;gap:12px}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-soft:#071127;
  --bg-mid:#0A1A3C;
  --surface:rgba(14,30,62,.55);
  --surface-strong:rgba(9,20,44,.86);
  --line:rgba(96,165,250,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --txt-2:#94A3B8;
  --txt-3:#5B7091;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --mint:#22D3EE;
  --grad:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --glow:0 0 24px rgba(56,189,248,.35);
  --r:18px;
  --r-sm:12px;
  --shadow:0 20px 55px rgba(2,8,23,.65);
  --max:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:86px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.container{width:min(100% - 34px,var(--max));margin-inline:auto}
.narrow{width:min(100% - 34px,960px);margin-inline:auto}
::selection{background:rgba(56,189,248,.35);color:#fff}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);box-shadow:var(--glow);color:#04121f;font-weight:800;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.3px}
.brand-sub{font-size:11px;color:var(--txt-3);letter-spacing:.6px;text-transform:uppercase;font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.btn-ghost{
  padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--cyan);
  background:transparent;border:1px solid rgba(56,189,248,.4);cursor:pointer;
  transition:.2s;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan)}
.btn-solid{
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;color:#04121f;
  background:var(--grad);border:none;cursor:pointer;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);transition:transform .2s,box-shadow .25s;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.62)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.08);
  border:1px solid var(--line-2);color:var(--cyan);font-size:17px;cursor:pointer;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:13px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);color:#E2F4FF;border:1px solid rgba(56,189,248,.45)}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan)}
.btn-sm{padding:11px 20px;font-size:14px;border-radius:11px}
.btn:focus-visible,.btn-ghost:focus-visible,.btn-solid:focus-visible,.menu-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px;
}

/* ===== ARTICLE HERO ===== */
.article-hero{
  position:relative;overflow:hidden;padding:56px 0 52px;
  background:
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.93) 55%,rgba(3,7,18,1) 100%),
    url('/assets/images/7a863c4eb8ee2922.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 360px at 10% 6%,rgba(56,189,248,.16),transparent 68%),
             radial-gradient(620px 340px at 92% 88%,rgba(37,99,235,.2),transparent 70%);
}
.article-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--txt-3);margin-bottom:20px}
.crumbs a{color:var(--txt-2);transition:color .2s}
.crumbs a:hover{color:var(--cyan)}
.crumbs i{font-size:10px;color:var(--txt-3)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  font-size:12.5px;font-weight:600;color:var(--cyan);letter-spacing:.4px;text-transform:uppercase;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(37,99,235,.16);
  border:1px solid var(--line);color:#A9C4E6;
}
.pill i{color:var(--cyan);font-size:11px}
.article-hero h1{
  font-size:clamp(27px,3.7vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.5px;
  max-width:920px;
}
.article-hero h1 .hl{
  background:linear-gradient(120deg,#38BDF8,#2563EB 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.summary{
  margin-top:22px;max-width:900px;font-size:16.5px;line-height:1.75;color:#C7D6EA;
  border-left:3px solid var(--line-2);padding-left:18px;
}
.hero-figure{
  margin-top:30px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/7;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 20px;font-size:13px;color:#D6E6F7;
  background:linear-gradient(180deg,rgba(3,7,18,0),rgba(3,7,18,.92));
}

/* ===== SECTIONS ===== */
.section{padding:66px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(7,17,39,.7),rgba(3,7,18,0));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.sec-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.sec-title{font-size:clamp(22px,2.7vw,32px);font-weight:800;letter-spacing:-.4px;line-height:1.28}
.sec-desc{margin-top:14px;color:var(--txt-2);font-size:15.5px;line-height:1.75;max-width:760px}

/* ===== HIGHLIGHT STRIP ===== */
.strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  margin-top:-38px;position:relative;z-index:5;box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
}
.strip-item{
  background:rgba(7,17,39,.9);padding:22px 20px;display:flex;flex-direction:column;gap:7px;
  transition:background .25s;
}
.strip-item:hover{background:rgba(14,30,62,.95)}
.strip-item i{color:var(--cyan);font-size:17px}
.strip-item strong{font-size:15px;font-weight:700;color:#fff}
.strip-item span{font-size:13px;color:var(--txt-2);line-height:1.55}

/* ===== ARTICLE BODY ===== */
.article-shell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(24px,4vw,52px);backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.article-body{font-size:16.5px;line-height:1.75;color:#CBD9EC}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);color:#fff;font-weight:800;letter-spacing:-.3px;
  margin:40px 0 14px;line-height:1.3;padding-left:14px;border-left:3px solid var(--cyan);
}
.article-body h3{font-size:18.5px;color:#E2F4FF;font-weight:700;margin:28px 0 10px}
.article-body h4{font-size:16.5px;color:#E2F4FF;font-weight:700;margin:22px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;display:grid;gap:9px;list-style:revert}
.article-body li{color:#CBD9EC}
.article-body li::marker{color:var(--cyan)}
.article-body strong{color:#fff}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#fff}
.article-body img{border-radius:var(--r);margin:24px 0;border:1px solid var(--line)}
.article-body blockquote{
  border-left:3px solid var(--cyan);background:rgba(56,189,248,.07);
  padding:16px 20px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin:24px 0;color:#D6E6F7;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:rgba(37,99,235,.18);color:#E2F4FF}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}
.not-found{
  text-align:center;padding:36px 20px;border:1px dashed var(--line-2);border-radius:var(--r);
  background:rgba(56,189,248,.05);
}
.not-found h2{font-size:22px;color:#fff;font-weight:800;margin-bottom:12px}
.not-found p{color:var(--txt-2);margin-bottom:22px}

/* ===== MID CTA ===== */
.mid-cta{
  margin:36px 0 0;padding:26px 28px;border-radius:var(--r);
  background:linear-gradient(135deg,rgba(37,99,235,.24),rgba(56,189,248,.12));
  border:1px solid var(--line-2);display:flex;flex-wrap:wrap;gap:18px;
  align-items:center;justify-content:space-between;
}
.mid-cta h3{font-size:18px;font-weight:800;color:#fff;margin-bottom:6px}
.mid-cta p{font-size:14px;color:#BBD1EA;max-width:620px}

/* ===== INSIGHT ASYMMETRIC ===== */
.insight-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:start}
.insight-list{display:grid;gap:0;margin-top:26px;border-top:1px solid var(--line)}
.insight-list li{
  display:grid;grid-template-columns:38px 1fr;gap:16px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.insight-list .num{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(37,99,235,.2);border:1px solid var(--line-2);color:var(--cyan);
  font-weight:700;font-size:14px;
}
.insight-list strong{display:block;color:#fff;font-size:16px;margin-bottom:5px}
.insight-list p{font-size:14.5px;color:var(--txt-2);line-height:1.7}
.panel{
  background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;box-shadow:var(--shadow);
}
.panel h3{font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.panel-row:last-of-type{border-bottom:none}
.panel-row span{color:var(--txt-2)}
.panel-row b{color:#E2F4FF;font-weight:700}
.panel .btn{width:100%;margin-top:18px}

/* ===== STATS ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat-item{background:rgba(7,17,39,.75);padding:26px 22px}
.stat-item b{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;letter-spacing:-.5px}
.stat-item b em{font-style:normal;background:linear-gradient(120deg,#38BDF8,#2563EB);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-item span{display:block;margin-top:8px;font-size:13.5px;color:var(--txt-2);line-height:1.6}

/* ===== CHANNEL CARDS ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:32px}
.channel-card{
  position:relative;display:flex;flex-direction:column;gap:12px;padding:26px 24px;
  border-radius:var(--r);background:var(--surface);border:1px solid var(--line);
  transition:transform .25s,border-color .25s,box-shadow .25s;backdrop-filter:blur(12px);
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 0 30px rgba(56,189,248,.22)}
.channel-card i{color:var(--cyan);font-size:20px}
.channel-card h3{font-size:17.5px;font-weight:800;color:#fff}
.channel-card p{font-size:14.5px;color:var(--txt-2);line-height:1.7}
.channel-card .more{
  margin-top:auto;padding-top:12px;font-size:14px;font-weight:700;color:var(--cyan);
  display:inline-flex;align-items:center;gap:8px;
}
.channel-card .more i{font-size:12px;transition:transform .25s}
.channel-card:hover .more i{transform:translateX(4px)}

/* ===== FAQ ===== */
.faq-list{margin-top:30px;display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  overflow:hidden;transition:border-color .25s,background .25s;
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;font-weight:600;font-size:15.5px;color:#E7F1FB;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--cyan);transition:transform .25s;flex-shrink:0}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item[open]{background:rgba(14,30,62,.8);border-color:var(--line-2)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.8px;color:var(--txt-2);line-height:1.75}

/* ===== FINAL CTA ===== */
.final-cta{
  position:relative;overflow:hidden;border-radius:22px;padding:clamp(30px,5vw,58px);
  background:linear-gradient(135deg,rgba(37,99,235,.3),rgba(56,189,248,.12));
  border:1px solid var(--line-2);text-align:center;
}
.final-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 300px at 50% 0%,rgba(56,189,248,.2),transparent 70%);
}
.final-cta > *{position:relative;z-index:2}
.final-cta h2{font-size:clamp(22px,3vw,32px);font-weight:800;letter-spacing:-.4px;line-height:1.3}
.final-cta p{margin:16px auto 0;max-width:680px;color:#C7D6EA;font-size:15.5px;line-height:1.75}
.final-cta .btn-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
.cta-notes{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin-top:24px;font-size:13px;color:var(--txt-2)}
.cta-notes span{display:inline-flex;align-items:center;gap:8px}
.cta-notes i{color:var(--cyan)}

/* ===== FOOTER ===== */
.site-footer{
  border-top:1px solid var(--line);margin-top:20px;padding:56px 0 30px;
  background:linear-gradient(180deg,rgba(7,17,39,.6),rgba(3,7,18,1));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--txt-2);line-height:1.75;max-width:420px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.fb-badge{
  font-size:11px;font-weight:700;letter-spacing:.6px;padding:6px 11px;border-radius:8px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:#9FC0E4;
}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--txt-2);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--txt-3);
}
.footer-bottom a{color:var(--txt-2)}
.footer-bottom a:hover{color:var(--cyan)}

/* ===== FAB ===== */
.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  min-height:56px;padding:0 20px;border-radius:999px;
  background:rgba(7,7,13,.8);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
                   linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E2F4FF;font-size:14px;font-weight:700;
  transition:transform .25s,box-shadow .25s,opacity .25s;opacity:.78;
}
.fab:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 30px rgba(56,189,248,.7)}
.fab:active{transform:scale(.95)}
.fab i{color:var(--cyan);font-size:17px;animation:flick 3.2s infinite}
@keyframes flick{0%,92%,100%{opacity:1}94%{opacity:.3}96%{opacity:1}98%{opacity:.5}}
.fab .fab-dot{
  position:absolute;top:-3px;right:-3px;width:11px;height:11px;border-radius:50%;
  background:#22D3EE;box-shadow:0 0 10px #22D3EE;animation:pulse 1.6s infinite;
}

/* ===== BOTTOM BAR ===== */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:85;
  background:rgba(3,7,18,.92);backdrop-filter:blur(16px);
  border-top:1px solid var(--line-2);padding:12px 0;
}
.bottom-bar .container{display:flex;align-items:center;justify-content:space-between;gap:18px}
.bottom-bar p{font-size:14px;color:#C7D6EA}
.bottom-bar p b{color:#fff}
.bottom-bar .btn{padding:11px 22px;font-size:14px;flex-shrink:0}

/* ===== RESPONSIVE ===== */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .insight-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:980px){
  .nav{height:68px}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;margin:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);padding:14px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 15px;font-size:15px}
  .nav-actions{margin-left:0}
  .brand-sub{display:none}
  .strip{grid-template-columns:repeat(2,1fr);margin-top:-26px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{padding-bottom:96px}
  .section{padding:50px 0}
  .article-hero{padding:40px 0 44px}
  .hero-figure img{aspect-ratio:16/9}
  .strip{grid-template-columns:1fr;margin-top:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .channel-grid{grid-template-columns:1fr}
  .bottom-bar .container{flex-direction:column;align-items:flex-start;gap:10px}
  .bottom-bar .btn{width:100%}
  .mid-cta{padding:22px 20px}
  .final-cta .btn-row .btn{width:100%}
}
@media (max-width:520px){
  .nav-actions .btn-ghost{padding:8px 12px;font-size:13px}
  .nav-actions .btn-solid{padding:9px 13px;font-size:13px}
  .article-shell{padding:20px 16px}
  .article-body{font-size:15.8px}
  .stats-grid{grid-template-columns:1fr}
  .fab{padding:0 16px;font-size:13px;min-height:52px}
  .sec-title{font-size:22px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-soft:#071127;
  --bg-mid:#0A1A3C;
  --surface:rgba(14,30,62,.55);
  --surface-strong:rgba(9,20,44,.86);
  --line:rgba(96,165,250,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --txt-2:#94A3B8;
  --txt-3:#5B7091;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --mint:#22D3EE;
  --grad:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --glow:0 0 24px rgba(56,189,248,.35);
  --r:18px;
  --r-sm:12px;
  --shadow:0 20px 55px rgba(2,8,23,.65);
  --max:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:92px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:min(100% - 34px,var(--max));margin-inline:auto}
section[id]{scroll-margin-top:92px}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);box-shadow:var(--glow);color:#04121f;font-weight:800;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.3px}
.brand-sub{font-size:11px;color:var(--txt-3);letter-spacing:.6px;text-transform:uppercase;font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.btn-ghost{
  padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--cyan);
  background:transparent;border:1px solid rgba(56,189,248,.4);cursor:pointer;
  transition:.2s;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan)}
.btn-solid{
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;color:#04121f;
  background:var(--grad);border:none;cursor:pointer;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);transition:transform .2s,box-shadow .25s;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.62)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.08);
  border:1px solid var(--line-2);color:var(--cyan);font-size:17px;cursor:pointer;
}
.menu-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:13px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
}
.btn i{font-size:14px}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);color:#E2F4FF;border:1px solid rgba(56,189,248,.45)}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-sm{padding:11px 18px;font-size:13.5px;border-radius:11px}

/* ===== HERO ===== */
.hero{
  position:relative;overflow:hidden;padding:66px 0 58px;
  background:
    radial-gradient(720px 380px at 8% 0%,rgba(56,189,248,.17),transparent 66%),
    radial-gradient(640px 360px at 94% 86%,rgba(37,99,235,.22),transparent 70%),
    linear-gradient(180deg,#04101F 0%,#030712 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(96,165,250,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(96,165,250,.08) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(circle at 28% 18%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 28% 18%,#000 0%,transparent 74%);
}
.hero-inner{position:relative;z-index:2;max-width:960px}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  font-size:12.5px;font-weight:600;color:var(--cyan);letter-spacing:.4px;text-transform:uppercase;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.86)}}
.hero h1{font-size:clamp(29px,4.1vw,46px);margin:22px 0 18px;line-height:1.18;max-width:900px}
.hero h1 .hl{
  background:linear-gradient(120deg,#38BDF8,#2563EB 72%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:16.5px;color:#C7D6EA;max-width:760px;line-height:1.75}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

.status-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;margin-top:36px;
}
.status-item{background:rgba(9,20,44,.72);padding:16px 18px;display:flex;flex-direction:column;gap:5px}
.status-item .lbl{
  font-size:11.5px;color:var(--txt-3);text-transform:uppercase;letter-spacing:.9px;
  font-weight:600;display:flex;align-items:center;gap:7px;
}
.status-item .lbl i{color:var(--cyan)}
.status-item strong{font-size:15px;color:#E7F3FF;font-weight:700}

.icon-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.im-cell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .22s,border-color .22s,box-shadow .25s;
}
.im-cell:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:0 14px 34px rgba(2,8,23,.62)}
.im-cell i{font-size:19px;color:var(--cyan);margin-bottom:10px;display:block}
.im-cell h4{font-size:15px;margin-bottom:5px}
.im-cell p{font-size:13.5px;color:var(--txt-2);line-height:1.55}

/* ===== SECTIONS ===== */
.section{padding:74px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(7,17,39,.6),rgba(3,7,18,0));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.sec-head{max-width:740px;margin-bottom:36px}
.sec-tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--cyan);margin-bottom:12px;
}
.sec-title{font-size:clamp(23px,2.8vw,33px);margin-bottom:14px}
.sec-desc{color:var(--txt-2);font-size:15.5px;line-height:1.72}

/* ===== GLASS PANEL ===== */
.glass{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}

/* ===== LINK STATUS LIST ===== */
.link-rows{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(9,20,44,.5)}
.link-row{
  display:grid;grid-template-columns:52px 1fr auto auto;gap:18px;align-items:center;
  padding:20px 22px;border-bottom:1px solid var(--line);transition:background .2s;
}
.link-row:last-child{border-bottom:none}
.link-row:hover{background:rgba(56,189,248,.05)}
.lr-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(37,99,235,.18);border:1px solid var(--line-2);color:var(--cyan);font-size:18px;
}
.lr-body h3{font-size:16px;margin-bottom:4px}
.lr-body p{font-size:13.8px;color:var(--txt-2);line-height:1.55}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  font-size:12.5px;font-weight:700;white-space:nowrap;
}
.pill-live{background:rgba(34,211,238,.14);color:#7DD3FC;border:1px solid rgba(56,189,248,.4)}
.pill-live .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px var(--mint);animation:pulse 1.8s infinite}
.lr-time{font-size:12.5px;color:var(--txt-3);white-space:nowrap;font-weight:600}
.link-note{
  margin-top:16px;display:flex;align-items:flex-start;gap:11px;font-size:13.5px;color:var(--txt-2);
  background:rgba(37,99,235,.1);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 17px;
}
.link-note i{color:var(--cyan);margin-top:3px}

/* ===== VALUE ROWS ===== */
.value-list{border-top:1px solid var(--line)}
.value-row{
  display:grid;grid-template-columns:96px 1fr;gap:26px;align-items:flex-start;
  padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .25s;
}
.value-row:hover{padding-left:8px}
.v-index{
  font-size:30px;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(140deg,#38BDF8,#2563EB);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.value-row h3{font-size:19px;margin-bottom:9px}
.value-row p{color:var(--txt-2);font-size:15px;line-height:1.72;max-width:760px}

/* ===== SCENARIO SPLIT ===== */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:center}
.split-media{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.2}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.1),rgba(3,7,18,.68));
}
.scene-list{display:grid;gap:16px}
.scene{
  display:flex;gap:16px;align-items:flex-start;padding:20px 22px;
  background:rgba(9,20,44,.55);border:1px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .22s,transform .22s;
}
.scene:hover{border-color:var(--line-2);transform:translateX(4px)}
.scene i{color:var(--cyan);font-size:17px;margin-top:4px;flex-shrink:0}
.scene h4{font-size:15.5px;margin-bottom:6px}
.scene p{font-size:14px;color:var(--txt-2);line-height:1.65}

/* ===== DEVICE GRID ===== */
.device-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.device{
  padding:26px 22px 24px;border-radius:var(--r);background:rgba(9,20,44,.5);
  border:1px solid var(--line);border-top:2px solid rgba(56,189,248,.5);
  transition:transform .24s,box-shadow .26s;
}
.device:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(2,8,23,.6)}
.device i{font-size:22px;color:var(--cyan);margin-bottom:14px;display:block}
.device h3{font-size:16.5px;margin-bottom:8px}
.device p{font-size:13.8px;color:var(--txt-2);line-height:1.62}
.device .spec{
  display:inline-block;margin-top:14px;font-size:11.5px;font-weight:700;letter-spacing:.8px;
  text-transform:uppercase;color:#7DD3FC;padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);
}

/* ===== OFFER BANNER ===== */
.offer-banner{
  position:relative;overflow:hidden;border-radius:var(--r);padding:40px;
  background:linear-gradient(135deg,rgba(37,99,235,.26),rgba(56,189,248,.07));
  border:1px solid rgba(56,189,248,.38);box-shadow:0 24px 60px rgba(2,8,23,.6);
}
.offer-banner::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.28),transparent 66%);pointer-events:none;
}
.offer-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.offer-item{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:var(--r-sm);background:rgba(3,7,18,.5);border:1px solid var(--line)}
.offer-item i{color:var(--cyan);font-size:17px;margin-top:3px}
.offer-item h4{font-size:15px;margin-bottom:5px}
.offer-item p{font-size:13.5px;color:var(--txt-2);line-height:1.6}
.pay-row{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pay-chip{
  padding:8px 16px;border-radius:10px;font-size:13px;font-weight:600;color:#D6E8FB;
  background:rgba(3,7,18,.6);border:1px solid var(--line);display:inline-flex;align-items:center;gap:8px;
}
.pay-chip i{color:var(--cyan);font-size:13px}

/* ===== REVIEWS ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{
  padding:26px 24px;border-radius:var(--r);background:rgba(9,20,44,.52);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:16px;
  transition:border-color .22s,transform .24s;
}
.review:hover{border-color:var(--line-2);transform:translateY(-3px)}
.review .stars{color:#FBBF24;font-size:13px;letter-spacing:2px}
.review p{font-size:14.5px;color:#D3E1F2;line-height:1.72;flex:1}
.review .who{display:flex;align-items:center;gap:11px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800;
  background:var(--grad);color:#04121f;
}
.who-info strong{display:block;font-size:14px}
.who-info span{font-size:12.5px;color:var(--txt-3)}

/* ===== COMPARE TABLE ===== */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:rgba(9,20,44,.5)}
table.cmp{width:100%;border-collapse:collapse;min-width:600px}
.cmp th,.cmp td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.cmp thead th{
  font-size:11.5px;text-transform:uppercase;letter-spacing:1px;color:var(--txt-3);
  font-weight:700;background:rgba(3,7,18,.75);
}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp td:first-child{color:var(--txt-2);font-weight:600}
.cmp .good{color:#7EE7C7;font-weight:600}
.cmp .bad{color:#FCA5A5}
.cmp tbody tr:hover{background:rgba(56,189,248,.05)}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(9,20,44,.55);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s;
}
.faq-item:hover{border-color:rgba(56,189,248,.3)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;font-weight:600;font-size:15.5px;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--cyan);transition:transform .28s;flex-shrink:0}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;color:var(--txt-2);font-size:14.6px;line-height:1.75}
.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:-3px}

/* ===== ASSURANCE + CTA ===== */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px}
.assure{display:flex;gap:13px;align-items:flex-start}
.assure i{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(56,189,248,.12);border:1px solid var(--line-2);color:var(--cyan);font-size:15px;
}
.assure h4{font-size:14.6px;margin-bottom:4px}
.assure p{font-size:13.4px;color:var(--txt-2);line-height:1.6}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r);padding:44px 40px;
  background:
    radial-gradient(520px 260px at 88% 12%,rgba(56,189,248,.22),transparent 68%),
    linear-gradient(135deg,rgba(10,26,60,.95),rgba(3,7,18,.95));
  border:1px solid var(--line-2);
  display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center;
}
.cta-panel h2{font-size:clamp(22px,2.7vw,31px);margin-bottom:12px}
.cta-panel p{color:#C7D6EA;font-size:15.2px;line-height:1.7;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}

/* ===== FOOTER ===== */
.site-footer{
  background:linear-gradient(180deg,rgba(3,7,18,1),rgba(4,12,26,1));
  border-top:1px solid var(--line);padding:58px 0 30px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.8px;color:var(--txt-2);line-height:1.72;max-width:400px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.fb-badge{
  font-size:11px;font-weight:700;letter-spacing:.7px;padding:6px 11px;border-radius:8px;
  background:rgba(56,189,248,.1);border:1px solid var(--line);color:#8FC6E8;
}
.footer-col h4{font-size:14px;margin-bottom:16px;color:#E2F1FF}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:13.6px;color:var(--txt-2);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--txt-3);
}
.footer-bottom a{color:#8FC6E8}
.footer-bottom a:hover{color:var(--cyan)}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:104px;z-index:70;width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.9),rgba(7,12,26,.9)),
                   linear-gradient(135deg,#22D3EE,#2563EB);
  background-origin:border-box;background-clip:content-box,border-box;
  color:var(--cyan);font-size:20px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:transform .22s,box-shadow .26s,color .22s;
}
.fab:hover{transform:scale(1.1);color:#fff;box-shadow:0 0 32px rgba(6,182,212,.72)}
.fab:active{transform:scale(.95)}
.fab .fab-badge{
  position:absolute;top:8px;right:8px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 9px #F43F5E;animation:pulse 1.6s infinite;
}

/* ===== STICKY CTA ===== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(3,7,18,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line-2);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 0}
.sticky-copy strong{display:block;font-size:14.5px;color:#EAF5FF}
.sticky-copy span{font-size:12.5px;color:var(--txt-2)}
.sticky-actions{display:flex;gap:10px;flex-shrink:0}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .hero{padding:56px 0 50px}
  .status-bar{grid-template-columns:repeat(2,1fr)}
  .icon-matrix{grid-template-columns:repeat(2,1fr)}
  .device-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media img{aspect-ratio:16/9}
  .offer-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .nav{height:64px;gap:10px}
  .brand-mark{width:34px;height:34px;font-size:13px;border-radius:10px}
  .brand-name{font-size:15.5px}
  .brand-sub{display:none}
  .btn-ghost{padding:7px 11px;font-size:12.2px;border-radius:8px}
  .btn-solid{padding:8px 13px;font-size:12.2px;border-radius:8px}
  .menu-toggle{display:grid;place-items:center;width:38px;height:38px;font-size:15px;margin-left:4px}
  .nav-links{
    position:absolute;top:64px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:10px 16px 18px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero h1{font-size:clamp(25px,6vw,32px)}
  .lead{font-size:15.4px}
  .btn{padding:13px 22px;font-size:14.2px}
  .status-bar{grid-template-columns:1fr 1fr}
  .link-row{grid-template-columns:46px 1fr;gap:14px;padding:18px}
  .link-row .pill,.link-row .lr-time{grid-column:2}
  .value-row{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .review-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr;gap:16px}
  .cta-panel{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;padding:11px 0}
  .sticky-actions{justify-content:stretch}
  .sticky-actions .btn{flex:1}
  body{padding-bottom:150px}
  .fab{bottom:158px}
}
@media (max-width:520px){
  .container{width:min(100% - 24px,var(--max))}
  .hero{padding:44px 0 42px}
  .icon-matrix{grid-template-columns:1fr}
  .device-grid{grid-template-columns:1fr}
  .status-bar{grid-template-columns:1fr}
  .offer-banner{padding:26px 20px}
  .hero-cta .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-soft:#071127;
  --bg-mid:#0A1A3C;
  --surface:rgba(14,30,62,.55);
  --surface-strong:rgba(9,20,44,.86);
  --line:rgba(96,165,250,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --txt-2:#94A3B8;
  --txt-3:#5B7091;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --mint:#22D3EE;
  --gold:#FCD34D;
  --grad:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --grad-2:linear-gradient(135deg,#22D3EE 0%,#2563EB 100%);
  --glow:0 0 24px rgba(56,189,248,.35);
  --r:18px;
  --r-sm:12px;
  --r-lg:26px;
  --shadow:0 20px 55px rgba(2,8,23,.65);
  --max:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html body{
  margin:0;padding-bottom:78px;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--txt);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
html body a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.3px}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
.container{width:min(100% - 34px,var(--max));margin-inline:auto}
::selection{background:rgba(56,189,248,.35);color:#fff}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);box-shadow:var(--glow);color:#04121f;font-weight:800;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.3px}
.brand-sub{font-size:11px;color:var(--txt-3);letter-spacing:.6px;text-transform:uppercase;font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.btn-ghost{
  padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--cyan);
  background:transparent;border:1px solid rgba(56,189,248,.4);cursor:pointer;
  transition:.2s;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan)}
.btn-solid{
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;color:#04121f;
  background:var(--grad);border:none;cursor:pointer;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);transition:transform .2s,box-shadow .25s;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.62)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.08);
  border:1px solid var(--line-2);color:var(--cyan);font-size:17px;cursor:pointer;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:13px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);color:#E2F4FF;border:1px solid rgba(56,189,248,.45)}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan)}
.btn:focus-visible,.btn-solid:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ===== HERO ===== */
.page-hero{
  position:relative;overflow:hidden;padding:66px 0 0;
  background:
    linear-gradient(180deg,rgba(3,7,18,.9) 0%,rgba(3,7,18,.95) 55%,rgba(3,7,18,1) 100%),
    url('/assets/images/7a863c4eb8ee2922.jpg') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 380px at 10% 6%,rgba(56,189,248,.16),transparent 68%),
             radial-gradient(620px 340px at 92% 88%,rgba(37,99,235,.2),transparent 70%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:46px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  font-size:12.5px;font-weight:600;color:var(--cyan);letter-spacing:.4px;text-transform:uppercase;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
.hero-copy h1{font-size:clamp(29px,3.9vw,45px);margin:20px 0 18px;line-height:1.2}
.hero-copy h1 .hl{background:linear-gradient(120deg,#38BDF8,#2563EB 70%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:16.5px;color:#C7D6EA;max-width:640px;line-height:1.75}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.kpi-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:30px;max-width:600px}
.kpi{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 16px;backdrop-filter:blur(12px);
}
.kpi strong{display:block;font-size:20px;color:#fff;letter-spacing:-.4px}
.kpi span{font-size:12.5px;color:var(--txt-2);line-height:1.45;display:block;margin-top:3px}
.hero-visual{position:relative;transform:translateY(-6px)}
.hero-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-2);box-shadow:var(--shadow),0 0 40px rgba(37,99,235,.25);
}
.hero-frame img{width:100%;object-fit:cover;aspect-ratio:4/3}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,.05),rgba(3,7,18,.62));
}
.float-card{
  position:absolute;left:-18px;bottom:26px;z-index:3;
  background:var(--surface-strong);border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:13px 17px;backdrop-filter:blur(14px);box-shadow:var(--glow);
}
.float-card b{display:block;font-size:15.5px;color:#fff}
.float-card span{font-size:12.5px;color:var(--cyan)}
.float-tag{
  position:absolute;right:-10px;top:22px;z-index:3;
  background:rgba(9,20,44,.9);border:1px solid rgba(252,211,77,.45);color:var(--gold);
  font-size:12px;font-weight:700;letter-spacing:.6px;padding:8px 14px;border-radius:999px;
  backdrop-filter:blur(10px);text-transform:uppercase;
}
.hero-foot{
  position:relative;z-index:2;margin-top:52px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
}
.hero-foot div{padding:22px 18px 24px;border-right:1px solid var(--line)}
.hero-foot div:last-child{border-right:none}
.hero-foot b{display:block;font-size:19px;color:#fff}
.hero-foot span{font-size:13px;color:var(--txt-2)}

/* ===== SECTIONS ===== */
.section{padding:74px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(7,17,39,.62),rgba(3,7,18,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:38px}
.sec-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.sec-title{font-size:clamp(23px,2.8vw,33px)}
.sec-desc{color:var(--txt-2);margin-top:12px;font-size:15.5px;line-height:1.72}
.split-head{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:end;margin-bottom:40px}

/* ===== CARDS ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:0 18px 42px rgba(2,8,23,.55)}
.card-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-2);color:var(--cyan);
  font-size:18px;margin-bottom:16px;
}
.card h3{font-size:17.5px;margin-bottom:10px}
.card p{color:var(--txt-2);font-size:14.6px;line-height:1.68}
.card .value{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.6px;margin:6px 0 8px}
.card .value small{font-size:13px;color:var(--txt-3);font-weight:600;letter-spacing:0}
.meta-list{margin-top:14px;border-top:1px dashed var(--line);padding-top:13px;display:grid;gap:8px}
.meta-list li{font-size:13.4px;color:var(--txt-2);display:flex;gap:9px;align-items:flex-start}
.meta-list i{color:var(--cyan);font-size:12px;margin-top:4px}
.tag{
  display:inline-block;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(37,99,235,.2);border:1px solid var(--line);color:#BBD6F7;
}
.tag-cyan{background:rgba(56,189,248,.14);color:var(--cyan);border-color:rgba(56,189,248,.35)}
.tag-gold{background:rgba(252,211,77,.12);color:var(--gold);border-color:rgba(252,211,77,.35)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ===== SCHEDULE TABLE ===== */
.schedule{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:rgba(6,14,32,.6);backdrop-filter:blur(12px);
}
.schedule-row{
  display:grid;grid-template-columns:1.15fr .8fr 1.5fr .9fr;gap:16px;
  padding:18px 24px;border-bottom:1px solid var(--line);align-items:center;font-size:14.4px;
}
.schedule-row:last-child{border-bottom:none}
.schedule-row.head{
  background:rgba(37,99,235,.16);font-size:12.4px;font-weight:700;color:var(--cyan);
  text-transform:uppercase;letter-spacing:.9px;
}
.schedule-row strong{color:#fff;font-weight:700}
.schedule-row .val{color:var(--mint);font-weight:700}

/* ===== TIMELINE ===== */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative}
.tl-item{padding:26px 22px;border-left:1px solid var(--line);position:relative}
.tl-item:first-child{border-left:none}
.tl-item::before{
  content:"";position:absolute;top:0;left:22px;width:34px;height:3px;border-radius:2px;background:var(--grad);
}
.tl-time{font-size:19px;font-weight:800;color:var(--cyan);letter-spacing:-.4px;margin-top:14px}
.tl-item h3{font-size:16px;margin:10px 0 8px}
.tl-item p{font-size:14.2px;color:var(--txt-2);line-height:1.65}

/* ===== STEPS ===== */
.steps-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.steps{display:grid;gap:14px;counter-reset:st}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;backdrop-filter:blur(12px);transition:border-color .25s,transform .25s;
}
.step:hover{border-color:var(--line-2);transform:translateX(4px)}
.step .num{
  counter-increment:st;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad);color:#04121f;font-weight:800;font-size:15px;flex-shrink:0;
}
.step .num::before{content:counter(st,decimal)}
.step h3{font-size:16px;margin-bottom:5px}
.step p{font-size:14.2px;color:var(--txt-2);line-height:1.65}
.step-img{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow)}
.step-img img{width:100%;aspect-ratio:16/11;object-fit:cover}

/* ===== VIP TIERS ===== */
.tier-bar{
  display:flex;align-items:center;gap:12px;margin-bottom:26px;padding:16px 20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;color:var(--txt-2);flex-wrap:wrap;
}
.tier-bar i{color:var(--cyan)}
.tier-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.tier{padding:22px;border-radius:var(--r);border:1px solid var(--line);background:rgba(9,20,44,.55)}
.tier h3{font-size:16px;display:flex;align-items:center;gap:9px}
.tier .range{font-size:12.8px;color:var(--txt-3);margin:6px 0 14px}
.tier progress{width:100%;height:6px;border-radius:99px;appearance:none}
.bar{height:6px;border-radius:99px;background:rgba(148,163,184,.18);overflow:hidden;margin-bottom:14px}
.bar i{display:block;height:100%;background:var(--grad);border-radius:99px}
.tier ul{display:grid;gap:9px}
.tier li{font-size:13.6px;color:var(--txt-2);display:flex;gap:9px;align-items:flex-start}
.tier li i{color:var(--mint);font-size:12px;margin-top:4px}

/* ===== PAY & REVIEW ===== */
.pay-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.pay-list{display:grid;gap:12px}
.pay-item{
  display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);transition:border-color .25s,transform .25s;
}
.pay-item:hover{border-color:var(--line-2);transform:translateY(-3px)}
.pay-item .pi-ico{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.32);color:var(--mint);font-size:15px;
}
.pay-item b{display:block;font-size:15px}
.pay-item span{font-size:13.2px;color:var(--txt-2)}
.reviews{display:grid;gap:14px}
.review{
  background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 22px;backdrop-filter:blur(12px);
}
.review .stars{color:var(--gold);font-size:12.5px;letter-spacing:2px;margin-bottom:9px}
.review p{font-size:14.6px;color:#D3DEEC;line-height:1.7}
.review .who{display:flex;align-items:center;gap:11px;margin-top:14px}
.review .ava{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:14px;
  background:var(--grad-2);color:#04121f;
}
.review .who b{font-size:14px;display:block}
.review .who span{font-size:12.4px;color:var(--txt-3)}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(9,20,44,.6);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s;
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:19px 22px;display:flex;justify-content:space-between;
  gap:16px;align-items:center;font-weight:600;font-size:15.6px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);
  font-size:12px;transition:transform .28s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;color:var(--txt-2);font-size:14.8px;line-height:1.72}

/* ===== CHANNEL / CTA ===== */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-2);padding:46px 44px;
  background:
    linear-gradient(120deg,rgba(3,7,18,.94) 0%,rgba(6,18,44,.86) 55%,rgba(3,7,18,.9) 100%),
    url('/assets/images/567787422ba63b81.jpg') center/cover no-repeat;
  box-shadow:var(--shadow);
}
.cta-block::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 300px at 88% 10%,rgba(56,189,248,.2),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(23px,2.9vw,34px)}
.cta-inner p{color:#C9D8EB;margin-top:12px;font-size:15.4px;line-height:1.72}
.cta-actions{display:grid;gap:12px}
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.channel{
  display:block;padding:20px;border-radius:var(--r);border:1px solid var(--line);
  background:rgba(9,20,44,.6);transition:border-color .25s,transform .25s,box-shadow .25s;
}
.channel:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--glow)}
.channel b{display:block;font-size:15.5px;margin-bottom:6px}
.channel span{font-size:13.4px;color:var(--txt-2);line-height:1.6}
.channel i{color:var(--cyan);margin-right:8px}

/* ===== FOOTER ===== */
.site-footer{
  background:linear-gradient(180deg,rgba(7,17,39,.7),rgba(2,5,14,1));
  border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{color:var(--txt-2);font-size:14.2px;line-height:1.7;margin-top:16px;max-width:420px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.fb-badge{
  font-size:11px;font-weight:700;letter-spacing:.8px;padding:6px 11px;border-radius:8px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:#9DB8DA;
}
.footer-col h4{font-size:14px;margin-bottom:16px;color:#fff;letter-spacing:.2px}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--txt-2);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.2px;color:var(--txt-3);
}
.footer-bottom a{color:var(--cyan)}

/* ===== FAB & STICKY BAR ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:60;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;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,#22D3EE,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E6F6FF;font-size:13.5px;font-weight:700;
  transition:transform .22s,box-shadow .25s,opacity .25s;opacity:.85;min-height:52px;
}
.fab i{color:var(--cyan);font-size:16px}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.03);box-shadow:0 0 30px rgba(6,182,212,.66)}
.fab:active{transform:scale(.96)}
.fab .ping{
  position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:50%;
  background:#38BDF8;border:2px solid #030712;box-shadow:0 0 12px #38BDF8;animation:pulse 1.6s infinite;
}
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(3,7,18,.92);backdrop-filter:blur(16px);
  border-top:1px solid var(--line-2);padding:12px 0;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sticky-text{display:flex;align-items:center;gap:12px;font-size:14px;color:#CBD9EC}
.sticky-text b{color:#fff}
.sticky-text .tag-gold{font-size:11.5px}
.sticky-actions{display:flex;gap:10px;flex-wrap:wrap}
.sticky-actions .btn{padding:11px 20px;font-size:14px}

/* ===== RESPONSIVE ===== */
@media (max-width:1080px){
  .nav-links{
    position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:2px;background:rgba(3,7,18,.97);border-bottom:1px solid var(--line);
    padding:12px 17px 18px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px;font-size:15px}
  .nav-actions{margin-left:auto}
  .menu-toggle{display:grid;place-items:center}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-copy{max-width:100%}
  .hero-visual{transform:none}
  .float-card{left:12px;bottom:14px}
  .grid-4,.tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tl-item:nth-child(3){border-left:none}
  .steps-wrap,.pay-grid,.split-head,.cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:1fr}
  .schedule-row{grid-template-columns:1fr 1fr;row-gap:8px}
}
@media (max-width:768px){
  html body{padding-bottom:96px}
  .nav{height:66px;gap:14px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
  .btn-ghost{display:none}
  .section{padding:56px 0}
  .page-hero{padding-top:48px}
  .hero-foot{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-foot div{border-right:none;border-bottom:1px solid var(--line);padding:18px 12px}
  .hero-foot div:nth-child(odd){border-right:1px solid var(--line)}
  .kpi-row{grid-template-columns:1fr;max-width:100%}
  .grid-4,.grid-3,.grid-2,.tier-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .tl-item{border-left:none;border-top:1px solid var(--line);padding:22px 4px}
  .tl-item::before{left:4px}
  .schedule-row{grid-template-columns:1fr;padding:16px 18px}
  .schedule-row.head{display:none}
  .cta-block{padding:32px 22px}
  .fab{bottom:104px;left:12px;padding:11px 15px;font-size:12.5px}
  .sticky-text{font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:27px}
  .btn{width:100%;padding:14px 20px}
  .hero-cta{gap:10px}
  .sticky-inner{flex-direction:column;align-items:stretch}
  .sticky-actions{width:100%}
  .sticky-actions .btn{width:100%}
  .float-tag{right:8px;font-size:11px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-soft:#071127;
  --bg-mid:#0A1A3C;
  --surface:rgba(14,30,62,.55);
  --surface-strong:rgba(9,20,44,.86);
  --line:rgba(96,165,250,.16);
  --line-2:rgba(56,189,248,.42);
  --txt:#F8FAFC;
  --txt-2:#94A3B8;
  --txt-3:#5B7091;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --mint:#22D3EE;
  --grad:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --glow:0 0 24px rgba(56,189,248,.35);
  --r:18px;
  --r-sm:12px;
  --shadow:0 20px 55px rgba(2,8,23,.65);
  --max:1220px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:82px;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.26;letter-spacing:-.4px}
p{margin:0}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
.container{width:min(100% - 34px,var(--max));margin-inline:auto}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:22px;height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);box-shadow:var(--glow);color:#04121f;font-weight:800;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.3px;white-space:nowrap}
.brand-sub{font-size:10.5px;color:var(--txt-3);letter-spacing:.6px;text-transform:uppercase;font-weight:600;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-links a.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.btn-ghost{
  padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;color:var(--cyan);
  background:transparent;border:1px solid rgba(56,189,248,.4);cursor:pointer;
  transition:.2s;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.12);color:#fff;border-color:var(--cyan)}
.btn-solid{
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;color:#04121f;
  background:var(--grad);border:none;cursor:pointer;white-space:nowrap;
  box-shadow:0 0 18px rgba(56,189,248,.4);transition:transform .2s,box-shadow .25s;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(56,189,248,.62)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.08);
  border:1px solid var(--line-2);color:var(--cyan);font-size:17px;cursor:pointer;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:13px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 0 22px rgba(56,189,248,.42)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(56,189,248,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);color:#E2F4FF;border:1px solid rgba(56,189,248,.45)}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan)}
.btn:focus-visible,.menu-toggle:focus-visible,.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ===== HERO (banner thấp, bố cục bất đối xứng) ===== */
.hero{
  position:relative;overflow:hidden;padding:44px 0 40px;
  background:
    linear-gradient(180deg,rgba(3,7,18,.86) 0%,rgba(3,7,18,.93) 60%,rgba(3,7,18,1) 100%),
    url('/assets/images/7a863c4eb8ee2922.jpg') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 320px at 10% 6%,rgba(56,189,248,.18),transparent 68%),
             radial-gradient(560px 300px at 92% 88%,rgba(37,99,235,.20),transparent 70%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.32);
  font-size:12px;font-weight:600;color:var(--cyan);letter-spacing:.5px;text-transform:uppercase;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px #22D3EE}
.hero h1{font-size:clamp(27px,3.6vw,41px);margin:16px 0 16px;line-height:1.22}
.hero h1 .hl{background:linear-gradient(120deg,#38BDF8,#2563EB 72%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:16px;color:#C7D6EA;max-width:660px;line-height:1.72}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--txt-2)}
.hero-meta i{color:var(--cyan)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(37,99,235,.16);border:1px solid var(--line);color:#A9C4E6;
}
.hero-panel{
  background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);padding:24px 22px;backdrop-filter:blur(10px);
}
.hero-panel h3{font-size:15px;letter-spacing:.2px;margin-bottom:4px}
.hero-panel .hp-sub{font-size:13px;color:var(--txt-3);margin-bottom:16px}
.dl-row{
  display:flex;align-items:center;gap:14px;padding:13px 0;border-top:1px solid var(--line);
}
.dl-row:first-of-type{border-top:none}
.dl-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.10);border:1px solid var(--line-2);color:var(--cyan);font-size:18px;
}
.dl-info{display:flex;flex-direction:column;min-width:0}
.dl-info b{font-size:14.5px;font-weight:700}
.dl-info span{font-size:12.5px;color:var(--txt-3)}
.dl-size{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--mint);white-space:nowrap}

/* ===== STRIP SỐ LIỆU ===== */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(7,17,39,.55)}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.strip-item{background:rgba(3,7,18,.82);padding:22px 20px}
.strip-item b{display:block;font-size:22px;font-weight:800;letter-spacing:-.6px;color:#fff}
.strip-item span{font-size:12.5px;color:var(--txt-2);text-transform:uppercase;letter-spacing:.7px;font-weight:600}

/* ===== SECTION ===== */
.section{padding:64px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(7,17,39,.65),rgba(3,7,18,0));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
.sec-title{font-size:clamp(22px,2.6vw,31px);margin-bottom:12px}
.sec-desc{color:var(--txt-2);font-size:15.5px;line-height:1.72}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}

/* ===== 3 điều kiện ===== */
.cond-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.cond{border-top:2px solid var(--line-2);padding-top:20px}
.cond .num{font-size:13px;font-weight:800;color:var(--cyan);letter-spacing:1.6px}
.cond h3{font-size:18px;margin:10px 0 10px}
.cond p{color:var(--txt-2);font-size:14.8px;line-height:1.7}

/* ===== Danh sách bản cài ===== */
.variant-row{
  display:grid;grid-template-columns:220px 1fr 168px;gap:22px;align-items:center;
  padding:20px 18px;border-radius:var(--r-sm);border:1px solid transparent;
  border-bottom:1px solid var(--line);transition:background .25s,border-color .25s,box-shadow .25s;
}
.variant-row:hover{
  background:rgba(37,99,235,.10);border-color:var(--line-2);
  box-shadow:0 0 22px rgba(56,189,248,.18);
}
.variant-name{display:flex;align-items:center;gap:11px;font-weight:700;font-size:15.5px}
.variant-name i{color:var(--cyan);font-size:17px;width:20px;text-align:center}
.variant-desc{color:var(--txt-2);font-size:14.5px;line-height:1.68}
.variant-tag{
  justify-self:start;font-size:12px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  padding:6px 12px;border-radius:999px;background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.34);color:#8DE9F6;white-space:nowrap;
}

/* ===== Các bước ===== */
.steps{display:grid;gap:0}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:22px;padding:22px 0;border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:none}
.step-num{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-weight:800;font-size:17px;
  background:rgba(37,99,235,.18);border:1px solid var(--line-2);color:var(--cyan);
}
.step h3{font-size:17px;margin-bottom:7px}
.step p{color:var(--txt-2);font-size:14.8px;line-height:1.7}

/* ===== Điểm nổi bật (ảnh + list) ===== */
.figure{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature-list{display:grid;gap:18px;margin-top:6px}
.feature-list li{display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start}
.feature-list i{color:var(--cyan);font-size:15px;margin-top:4px}
.feature-list b{display:block;font-size:15.5px;margin-bottom:3px}
.feature-list span{color:var(--txt-2);font-size:14.5px;line-height:1.68}

/* ===== Cấu hình ===== */
.compat-row{
  display:grid;grid-template-columns:1.05fr 1.6fr .85fr;gap:20px;align-items:center;
  padding:17px 0;border-bottom:1px solid var(--line);
}
.compat-row:first-of-type{border-top:1px solid var(--line)}
.compat-key{font-weight:700;font-size:15px;color:#E4EFFB}
.compat-val{color:var(--txt-2);font-size:14.5px;line-height:1.66}
.compat-state{font-size:12.5px;font-weight:700;color:#8DE9F6;letter-spacing:.5px;text-transform:uppercase}

/* ===== Đánh giá ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.quote{border-left:2px solid var(--line-2);padding-left:20px}
.quote p{color:#CBD9EC;font-size:14.8px;line-height:1.72}
.quote footer{margin-top:14px;font-size:13px;color:var(--txt-3)}
.quote footer b{color:#E4EFFB;font-weight:700}
.stars{color:#38BDF8;font-size:12.5px;letter-spacing:2px;margin-bottom:10px}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  cursor:pointer;padding:19px 0;font-weight:700;font-size:16px;display:flex;
  justify-content:space-between;align-items:flex-start;gap:18px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--cyan);font-size:21px;line-height:1;font-weight:600}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-body{color:var(--txt-2);font-size:14.8px;line-height:1.72;padding:0 0 20px;max-width:820px}

/* ===== Kênh nội dung ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel{
  display:block;padding:24px 22px;border-radius:var(--r);border:1px solid var(--line);
  background:var(--surface);transition:transform .22s,box-shadow .28s,border-color .25s;
}
.channel:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 26px rgba(56,189,248,.22)}
.channel i{font-size:18px;color:var(--cyan)}
.channel h3{font-size:17px;margin:12px 0 8px}
.channel p{color:var(--txt-2);font-size:14.4px;line-height:1.68}
.channel .more{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--cyan)}

/* ===== CTA cuối ===== */
.final-cta{
  position:relative;overflow:hidden;border-radius:var(--r);border:1px solid var(--line-2);
  background:linear-gradient(135deg,rgba(37,99,235,.22),rgba(3,7,18,.9) 62%),
             url('/assets/images/567787422ba63b81.jpg') center/cover no-repeat;
  padding:44px 38px;box-shadow:var(--shadow);
}
.final-cta h2{font-size:clamp(21px,2.4vw,29px);margin-bottom:12px;max-width:620px}
.final-cta p{color:#C7D6EA;font-size:15.2px;max-width:640px;line-height:1.72}
.final-cta .cta-row{display:flex;flex-wrap:wrap;gap:13px;margin-top:24px}
.trust-row{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line);
}
.trust-row span{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:#9FD8F5;
  padding:7px 13px;border-radius:999px;background:rgba(56,189,248,.08);border:1px solid var(--line);
}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:100px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-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,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#E2F4FF;font-size:13.5px;font-weight:700;opacity:.82;
  transition:opacity .25s,transform .25s,box-shadow .3s;
}
.fab i{color:#8DE9F6;font-size:16px}
.fab:hover{opacity:1;transform:translateY(-2px);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.96)}
.fab .fab-dot{
  width:8px;height:8px;border-radius:50%;background:#A3E635;box-shadow:0 0 10px #A3E635;
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ===== THANH CTA CỐ ĐỊNH ===== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:85;
  background:rgba(4,10,24,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line-2);
}
.sticky-inner{display:flex;align-items:center;gap:18px;padding:12px 0}
.sticky-inner .st-txt{display:flex;flex-direction:column;min-width:0}
.sticky-inner .st-txt b{font-size:14.5px;font-weight:700}
.sticky-inner .st-txt span{font-size:12.5px;color:var(--txt-2)}
.sticky-actions{margin-left:auto;display:flex;gap:10px;flex-shrink:0}
.sticky-actions .btn{padding:11px 20px;font-size:14px;border-radius:11px}

/* ===== FOOTER ===== */
.site-footer{
  background:linear-gradient(180deg,#030712,#010409);
  border-top:1px solid var(--line);padding:58px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:38px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{color:var(--txt-2);font-size:14px;max-width:430px;line-height:1.7}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.fb-badge{
  font-size:11px;font-weight:700;letter-spacing:.8px;padding:6px 11px;border-radius:999px;
  background:rgba(56,189,248,.08);border:1px solid var(--line);color:#9FD8F5;
}
.footer-col h4{font-size:14px;margin:0 0 14px;letter-spacing:.2px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--txt-2);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:40px;padding-top:20px;
  font-size:13px;color:var(--txt-3);
}
.footer-bottom a{color:var(--cyan)}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr;gap:30px}
  .cond-grid{grid-template-columns:1fr 1fr}
  .quote-grid{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .variant-row{grid-template-columns:200px 1fr;row-gap:8px}
  .variant-tag{grid-column:1 / -1}
}
@media (max-width:860px){
  .nav{height:66px}
  .brand-sub{display:none}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  .nav-links{
    position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    padding:12px;gap:4px;margin-left:0;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15px}
  .nav-actions .btn-ghost{padding:8px 12px;font-size:13px}
  .nav-actions .btn-solid{padding:9px 14px;font-size:13px}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .hero{padding:34px 0 32px}
  .strip-item{padding:18px 16px}
  .strip-item b{font-size:19px}
  .cond-grid{grid-template-columns:1fr;gap:24px}
  .quote-grid{grid-template-columns:1fr;gap:24px}
  .channel-grid{grid-template-columns:1fr}
  .compat-row{grid-template-columns:1fr;row-gap:6px}
  .final-cta{padding:32px 24px}
  .sticky-inner{gap:12px}
  .sticky-inner .st-txt span{display:none}
  .fab{bottom:92px;left:12px;padding:10px 14px;font-size:12.5px}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .nav-actions .btn-ghost{display:none}
  .hero-cta .btn,.final-cta .cta-row .btn{width:100%}
  .strip-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .step{grid-template-columns:48px 1fr;gap:16px}
  .step-num{width:42px;height:42px;border-radius:12px;font-size:15px}
  .sticky-actions .btn{padding:10px 14px;font-size:13px}
  .fab span.fab-label{display:none}
}