:root{--ink:#1f2a37;--muted:#5b6673;--bg:#fbf8f3;--card:#fff;--brand:#16324f;--accent:#d9622b;--line:#e8e1d6;--soft:#f3ece1}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:17px}
img{max-width:100%;display:block}
a{color:var(--brand)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
section{padding:48px 0}
h1,h2,h3{line-height:1.25;color:var(--brand)}
h1{font-size:2rem;margin-bottom:10px}
h2{font-size:1.6rem;margin-bottom:16px}
h3{font-size:1.1rem;margin-bottom:6px}
p+p{margin-top:12px}
ul.list{margin:12px 0 0 20px}
ul.list li{margin-top:6px}
.eyebrow{font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:8px}

/* thanh menu */
.nav{background:var(--brand);position:sticky;top:0;z-index:10}
.nav .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 18px;padding-top:10px;padding-bottom:10px}
.nav .brand{color:#fff;font-weight:700;text-decoration:none}
.nav nav{display:flex;flex-wrap:wrap;gap:4px 16px}
.nav nav a{color:#e6edf4;text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
.nav nav a:hover,.nav nav a.on{color:#fff;border-bottom-color:var(--accent)}

/* hero */
.hero{background:var(--brand);color:#fff;padding:40px 0 48px}
.hero h1{color:#fff;font-size:2.1rem}
.hero .role{color:#f3d9c8;font-weight:600;margin-bottom:14px}
.hero p.lead{font-size:1.08rem;color:#e6edf4;max-width:34em}
.hero-grid{display:grid;gap:26px;align-items:center}
.portrait{width:190px;height:190px;border-radius:50%;object-fit:cover;object-position:50% 20%;border:5px solid #fff;box-shadow:0 8px 24px rgba(0,0,0,.25)}
@media(min-width:700px){.hero-grid{grid-template-columns:220px 1fr;gap:40px}.portrait{width:220px;height:220px}.hero h1{font-size:2.5rem}}
.pagehead{background:var(--brand);color:#fff;padding:34px 0}
.pagehead h1{color:#fff;margin:0}
.pagehead p{color:#e6edf4;margin-top:8px;max-width:38em}

.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn{display:inline-block;padding:13px 22px;border-radius:999px;font-weight:700;text-decoration:none;background:var(--accent);color:#fff}
.btn.alt{background:transparent;border:2px solid #fff;color:#fff}
.btn.dark{background:var(--brand)}

.nums{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:-26px}
.num{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 12px;text-align:center;box-shadow:0 4px 14px rgba(22,50,79,.08)}
.num b{display:block;font-size:1.6rem;color:var(--accent)}
.num span{font-size:.88rem;color:var(--muted)}
@media(min-width:700px){.nums{grid-template-columns:repeat(4,1fr)}}

.two{display:grid;gap:24px}
@media(min-width:760px){.two{grid-template-columns:1.2fr 1fr;align-items:start}}
.quote{border-left:4px solid var(--accent);padding:6px 0 6px 16px;margin:18px 0;font-size:1.15rem;color:var(--brand);font-weight:600}
.photo{border-radius:14px;overflow:hidden;background:var(--soft)}
.photo img{width:100%;height:auto}
.gallery .photo img{aspect-ratio:4/3;object-fit:cover}
.photo figcaption{font-size:.85rem;color:var(--muted);padding:8px 12px}

.band{background:var(--soft)}
.cards{display:grid;gap:14px}
@media(min-width:700px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.cards.three{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.card p{color:var(--muted);font-size:.97rem}
.card a.more{display:inline-block;margin-top:8px;font-weight:700}
.gallery{display:grid;gap:12px}
@media(min-width:700px){.gallery{grid-template-columns:repeat(3,1fr)}}

.cert{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:14px;padding:20px}
.cert dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin-bottom:12px;font-size:.97rem}
.cert dt{color:var(--muted)}
.steps{counter-reset:s;list-style:none;display:grid;gap:12px}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 16px 16px 58px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;text-align:center;line-height:30px}

.contact{background:var(--brand);color:#fff;text-align:center}
.contact h2{color:#fff}
.contact p{color:#e6edf4;max-width:32em;margin:0 auto}
.contact .btns{justify-content:center}
.qr{margin:28px auto 0;max-width:260px}
.qr img{width:100%;height:auto;border-radius:16px}
.qr p{font-size:.9rem;margin-top:8px}
footer{padding:22px 0;text-align:center;font-size:.85rem;color:var(--muted)}