:root{
  --navy:#1e2b3c; --navy-2:#162131; --ink:#1b2430; --muted:#5b6673;
  --gold:#c9972f; --gold-2:#b07f1e; --gold-hi:#dcae4a;
  --zalo:#0a68ff; --zalo-2:#0053d6; --green:#1a9a4a;
  --cream:#fdf3e6; --grey:#f4f5f7; --blue-bg:#e6f0fd; --line:#e3e6ea;
  --sticky-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.5;padding-bottom:calc(var(--sticky-h) + env(safe-area-inset-bottom,0px));-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.lnk{color:var(--zalo);text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.center{text-align:center}
h1,h2,h3{line-height:1.25}
h2{font-size:clamp(22px,3.2vw,32px);font-weight:700}
.lead{color:var(--muted);margin-top:6px}
.small{font-size:14px;color:var(--muted)}
.muted{color:var(--muted);font-size:14px}
.foot-note{margin-top:20px;color:#3d4753;font-size:15px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 22px;border-radius:8px;font-weight:700;font-size:16px;color:#fff;border:0;cursor:pointer;font-family:inherit;transition:transform .12s,filter .12s;white-space:nowrap;min-height:48px}
.btn svg{width:24px;height:24px;flex:none}
.btn:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #ffd77a;outline-offset:2px}
.btn-gold{background:linear-gradient(180deg,var(--gold-hi),var(--gold) 45%,var(--gold-2))}
.btn-zalo{background:linear-gradient(180deg,#2b7dff,var(--zalo) 50%,var(--zalo-2))}
.btn-block{display:flex;width:100%;padding:16px 18px;font-size:17px;white-space:normal;text-align:center}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 1px 0 var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.logo img{height:60px;width:auto;mix-blend-mode:multiply}
.nav{display:flex;gap:28px;font-weight:500;font-size:15px}
.nav a:hover{color:var(--gold-2)}
.hdr-call{font-size:18px;padding:12px 24px}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);background:var(--navy);color:#fff}
.hero-text{padding:40px 40px 36px max(20px,calc((100vw - 1120px)/2 + 20px));display:flex;flex-direction:column;justify-content:center}
.hero-kicker{font-size:13px;color:#c3cad4;letter-spacing:.3px;margin-bottom:10px}
.hero h1{font-size:clamp(30px,4.2vw,48px);font-weight:800;letter-spacing:.3px}
.hero h1 span{color:var(--gold-hi);font-size:.72em;display:block;margin-top:4px}
.hero-points{list-style:none;margin-top:18px;display:grid;gap:8px;font-size:clamp(15px,1.5vw,18px)}
.hero-points li{display:flex;gap:10px;align-items:flex-start}
.hero-points svg{width:22px;height:22px;flex:none;color:#7fe3a0;margin-top:2px}
.hero-points b{color:#fff}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.hero-trust{margin-top:18px;font-size:15px;color:#e6eaf0}
.hero-trust b{color:var(--gold-hi)}
.hero-tiny{margin-top:8px;font-size:12.5px;color:#aeb8c5}
.hero-img{position:relative;min-height:320px}
.hero-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.img-tag{position:absolute;right:16px;bottom:14px;background:rgba(20,28,40,.78);color:#fff;font-size:13px;padding:6px 12px;border-radius:6px}

/* strip */
.strip{background:var(--cream);border-bottom:1px solid #f0e2c8}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:18px 20px}
.strip-in div{display:grid;grid-template-columns:34px 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center}
.strip-in svg{width:32px;height:32px;color:var(--gold);grid-row:span 2}
.strip-in b{font-size:18px}
.strip-in span{font-size:13px;color:var(--muted)}

/* sections */
.sec{padding:44px 0}
.sec-tight{padding:36px 0}
.sec-cream{background:var(--cream)}
.sec-grey{background:var(--grey)}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:22px}
.gallery img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px}
.gallery figcaption{text-align:center;font-size:14px;font-weight:600;margin-top:10px}
.commit{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;margin:26px 0 22px;font-weight:600}
.commit span{display:inline-flex;align-items:center;gap:6px}
.commit svg{width:22px;height:22px;color:var(--green)}

.cards{display:grid;gap:22px;margin-top:24px}
.c3{grid-template-columns:repeat(3,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}
.card{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px 22px;box-shadow:0 2px 8px rgba(30,43,60,.05)}
.card h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card p{font-size:14px;color:var(--muted);margin-top:4px}
.ok{font-style:normal;font-size:12px;background:#e3f6ea;color:var(--green);padding:2px 8px;border-radius:999px;font-weight:700}
.ic{width:52px;height:52px;flex:none}
.gold{color:var(--gold)} .navy{color:var(--navy)} .blue{color:var(--zalo)}
.tile{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px 12px;text-align:center;box-shadow:0 2px 8px rgba(30,43,60,.05)}
.tile .ic{width:40px;height:40px;margin:0 auto 10px;display:block}
.tile h3{font-size:16px;font-weight:700}
.tile p{font-size:13px;color:var(--muted);margin-top:4px}

/* cost + zalo split */
.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
.split-l{padding:40px 32px 40px max(20px,calc((100vw - 1120px)/2 + 20px))}
.split-r{background:var(--blue-bg);padding:40px max(20px,calc((100vw - 1120px)/2 + 20px)) 40px 32px}
.split-r h2{color:#0d47a1}
.split-r>p{margin-top:10px;color:#33465e}
.cost{width:100%;border-collapse:collapse;margin:18px 0 14px;border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:15px}
.cost th,.cost td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.cost tr:last-child th,.cost tr:last-child td{border-bottom:0}
.cost th{width:30%;background:#f6f7f9;font-weight:700}
.cost td{color:#414b57}
.example{background:#fff8ea;border-left:4px solid var(--gold);padding:12px 14px;font-size:14.5px;border-radius:6px;margin-bottom:16px}
.bubble{background:#fff;border-radius:16px 16px 16px 4px;padding:18px 22px;font-size:17px;margin:18px 0;box-shadow:0 2px 10px rgba(10,104,255,.12)}
.split-r .small{margin-top:14px;color:#33465e}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:26px}
.steps li{display:flex;gap:12px;align-items:flex-start;position:relative;padding-right:22px}
.num{flex:none;width:38px;height:38px;border-radius:50%;background:#1565d8;color:#fff;font-weight:700;font-size:18px;display:grid;place-items:center}
.steps h3{font-size:16px;font-weight:700}
.steps p{font-size:13.5px;color:var(--muted);margin-top:4px}
.arr{position:absolute;right:0;top:9px;width:20px;height:20px;color:var(--ink)}

/* prep */
.prep{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px}
.pill{display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:11px 20px;font-weight:600;font-size:14.5px}
.pill svg{width:24px;height:24px;color:var(--navy);flex:none}

/* faq */
.faq{align-items:flex-start;padding:16px 18px;gap:14px}
.faq h3{font-size:15.5px}
.q{flex:none;width:32px;height:32px;border-radius:50%;background:#1565d8;color:#fff;font-weight:800;display:grid;place-items:center}

/* company */
.company{border-top:1px solid var(--line);padding:30px 0;background:#fafafa}
.company-in{display:grid;grid-template-columns:auto 1fr auto;gap:32px;align-items:center}
.company-logo{height:92px;width:auto;mix-blend-mode:multiply}
.company-info h3{font-size:18px;font-weight:800}
.company-info p{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:15px;flex-wrap:wrap}
.company-info svg{width:20px;height:20px;flex:none}
.company-info .muted{padding-left:28px;margin-top:4px}
.company-contact{display:flex;flex-direction:column;gap:12px;padding-left:32px;border-left:2px solid #c9ced6;font-weight:700;font-size:18px}
.company-contact a{display:flex;align-items:center;gap:10px}
.company-contact a:last-child{font-weight:500;font-size:16px}
.company-contact svg{width:30px;height:30px}
.branches-h{margin-top:28px;font-size:17px;text-align:center}
.branches{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:8px 20px;margin:12px auto 10px;max-width:860px;font-size:14.5px}
.branches li{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:6px}

/* final cta */
.final{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;padding:40px 0}
.final-in{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:40px;align-items:center}
.final h2{font-size:clamp(21px,2.7vw,28px)}
.final p{color:#d5dbe3;margin-top:6px}
.cb{display:flex;flex-direction:column;gap:10px}
.cb-title{font-weight:600}
.cb input[type=text],.cb input[type=tel],.cb select{width:100%;min-width:0;padding:13px 14px;border:1px solid #cfd5dd;border-radius:6px;font:inherit;font-size:16px;color:var(--ink);background:#fff}
.cb-row{display:flex;gap:8px}
.cb-row .btn{font-size:15px;padding:12px 16px}
.cb-check{display:flex;gap:10px;align-items:flex-start;font-size:14px;cursor:pointer}
.cb-check input{width:22px;height:22px;margin-top:0;flex:none}
.cb-msg{font-size:13px;color:#b9c2ce;margin:0}
.cb-msg.ok{color:#7fe3a0;font-size:15px;font-weight:600}
.cb-msg.err{color:#ffb4a8;font-size:14px;font-weight:600}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}

/* footer */
.ftr{background:var(--navy-2);color:#aeb8c5;font-size:13px;padding:18px 0;border-top:1px solid #2b3a4e}
.ftr-in{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
.ftr a:hover{color:#fff}

/* sticky bar */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:1fr 1fr;height:calc(var(--sticky-h) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px);box-shadow:0 -4px 16px rgba(0,0,0,.2)}
.sticky a{display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-weight:800;font-size:clamp(15px,2.2vw,22px);letter-spacing:.3px}
.sticky svg{width:32px;height:32px;flex:none}
.s-call{background:linear-gradient(180deg,var(--gold-hi),var(--gold) 45%,var(--gold-2))}
.s-zalo{background:var(--zalo)}

@media (max-width:900px){
  .nav{display:none}
  .hero,.split,.final-in{grid-template-columns:1fr}
  .hero-text{padding:26px 20px 24px}
  .hero-img{min-height:200px;height:200px;order:1}
  .split-l,.split-r{padding:32px 20px}
  .c3{grid-template-columns:1fr}
  .c4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .arr{display:none}
  .strip-in{grid-template-columns:repeat(2,1fr)}
  .company-in{grid-template-columns:1fr;gap:18px;text-align:left}
  .company-contact{border-left:0;padding-left:0}
  .branches{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .hdr-in{height:60px}
  .logo img{height:46px}
  .hdr-call{font-size:15px;padding:10px 14px}
  .hero h1{font-size:28px}
  .hero-points{font-size:15px}
  .gallery{grid-template-columns:1fr;gap:16px}
  .steps{grid-template-columns:1fr}
  .cta-row .btn{width:100%}
  .cb-row{flex-direction:column}
  .sticky svg{width:26px;height:26px}
  .bubble{font-size:15.5px}
  .cost th{width:34%}
  .cost th,.cost td{padding:10px 10px;font-size:14px}
  .branches{grid-template-columns:1fr}
  .strip-in b{font-size:16px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}