:root{--bg:#fff;--ink:#141414;--muted:#5b5b5b;--line:#e8e8e8;--cta:#d9261c;--cta2:#ff6a00;--dark:#111}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;padding-bottom:64px}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
a{color:inherit}
.site-header{position:sticky;top:0;background:#111;color:#fff;z-index:50;border-bottom:2px solid var(--cta)}
.header-inner{display:flex;align-items:center;gap:12px;padding:10px 16px}
.logo{font-weight:800;text-decoration:none;color:#fff;line-height:1.1}
.logo span{display:block;font-size:12px;font-weight:400;color:#ffb3ab}
.nav-desktop{display:none;gap:14px;margin-left:auto}
.nav-desktop a{color:#eee;text-decoration:none;font-size:15px}
.nav-desktop a:hover{color:#fff;text-decoration:underline}
.btn-call{background:var(--cta);color:#fff!important;padding:10px 14px;border-radius:10px;text-decoration:none;font-weight:800;white-space:nowrap}
.nav-toggle{margin-left:auto;background:transparent;border:1px solid #444;color:#fff;border-radius:8px;padding:8px 10px}
.nav-mobile{display:none;flex-direction:column;background:#1a1a1a;padding:8px 16px}
body.nav-open .nav-mobile{display:flex}
.nav-mobile a{color:#fff;text-decoration:none;padding:10px 0;border-top:1px solid #2a2a2a}
@media(min-width:900px){.nav-desktop{display:flex}.nav-toggle,.nav-mobile{display:none!important}body{padding-bottom:0}.mobile-call-bar{display:none!important}}
@media(max-width:480px){
.header-inner .btn-call .num{display:none}
.header-inner .btn-call{font-size:20px;padding:8px 12px}
.hero{padding:32px 0}
.hero h1{font-size:27px}
.section{padding:28px 0}
.section h2{font-size:22px}
}
.hero{background:linear-gradient(180deg,#141414,#2a2a2a);color:#fff;padding:44px 0}
.hero h1{font-size:32px;margin:0 0 10px;line-height:1.2}
.hero p{color:#e8e8e8}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.cta-row .btn{flex:1 1 220px;text-align:center}
.btn{display:inline-block;padding:13px 18px;border-radius:12px;font-weight:800;text-decoration:none}
.btn-call{background:var(--cta);color:#fff}
.btn-zalo{background:#fff;color:#111;border:2px solid #111}
.quick{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:18px}
.quick div{background:#222;border:1px solid #333;border-radius:12px;padding:10px}
.quick strong{display:block}
@media(min-width:760px){.quick{grid-template-columns:repeat(4,1fr)}.hero h1{font-size:44px}}
.section{padding:36px 0;border-top:1px solid var(--line)}
.section h2{font-size:26px;margin:0 0 14px}
.grid{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:760px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.card h3{margin:0 0 8px;font-size:18px}
.card h3 a{color:inherit;text-decoration:none}
.card a{font-weight:700;color:var(--cta)}
.card-service{display:flex;flex-direction:column;overflow:hidden;padding:0}
.card-service h3,.card-service p,.card-service .more{padding-left:16px;padding-right:16px}
.card-service h3{margin-top:14px}
.card-service .card-img{display:block;line-height:0;position:relative;width:100%;aspect-ratio:16/10;border-radius:14px 14px 0 0;overflow:hidden;background:#f5f5f5}
.card-service .card-img img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;display:block;border-radius:14px 14px 0 0}
.card-service p{flex:1}
.card-service .more{margin-bottom:16px}
.card-blog img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;border-radius:10px}
.t-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.t-head img{width:56px;height:56px;border-radius:50%;object-fit:cover;flex:none}
.t-head strong{display:block}
.t-stars{color:#e8a100;font-size:14px}
/* Animation: hien dan khi cuon + hover */
.rv{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.rv.on{opacity:1;transform:none}
.card,.card-service{transition:transform .25s ease,box-shadow .25s ease}
.card:hover,.card-service:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.10)}
.hero h1{animation:fadeUp .7s ease both}
.hero .cta-row{animation:fadeUp .7s .15s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}.hero h1,.hero .cta-row{animation:none}.card:hover,.card-service:hover{transform:none}}
.steps{counter-reset:s;display:grid;gap:10px}
.steps div{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fafafa}
.breadcrumb{background:#f6f6f6;font-size:14px;padding:8px 0;color:var(--muted)}
.breadcrumb .wrap{white-space:nowrap;overflow-x:auto}
.breadcrumb a{color:var(--muted)}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:760px){.gallery{grid-template-columns:repeat(3,1fr)}}
.ph{aspect-ratio:4/3;background:repeating-linear-gradient(45deg,#eee,#eee 10px,#f7f7f7 10px,#f7f7f7 20px);border:1px dashed #bbb;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#777;font-size:13px;text-align:center;padding:8px}
.cta-final{background:#111;color:#fff;padding:40px 0;text-align:left}
.form{border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;gap:10px;background:#fff}
.form input,.form textarea{width:100%;padding:12px;border:1px solid #ccc;border-radius:10px;font-size:16px}
.form button{background:var(--cta);color:#fff;border:0;padding:14px;border-radius:12px;font-weight:800;font-size:17px;cursor:pointer}
.alert{background:#e8f7e8;border:1px solid #3a3;color:#145214;padding:12px;border-radius:10px}
details{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:8px 0}
summary{font-weight:700;cursor:pointer}
.mobile-call-bar{position:fixed;left:0;right:0;bottom:0;display:flex;z-index:60;background:#fff;border-top:1px solid var(--line)}
.mobile-call-bar a{flex:1;text-align:center;padding:14px 8px;font-weight:800;text-decoration:none}
.mobile-call-bar .zalo{background:#fff;color:#111}
.mobile-call-bar .call{background:var(--cta);color:#fff}
.site-footer{background:#111;color:#ddd;margin-top:0}
.footer-grid{display:grid;gap:18px;grid-template-columns:1fr;padding:28px 16px}
@media(min-width:760px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}
.site-footer a{color:#fff}
.footer-bottom{border-top:1px solid #2a2a2a;padding:12px 16px;color:#999}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid var(--line);padding:10px;text-align:left}
img{max-width:100%;height:auto}