/* STCI - giao diện chung cho tất cả các trang */
:root{
  --blue:#0b4fc4; --blue-dark:#0a2a6b; --navy:#10255a; --orange:#f7841e; --orange-dark:#e86f05;
  --text:#22304a; --muted:#5b6780; --line:#e3e9f4; --bg:#f4f8fe;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Be Vietnam Pro",system-ui,sans-serif;color:var(--text);background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:600;border-radius:999px;padding:13px 30px;transition:.2s}
.btn svg{width:18px;height:18px}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(247,132,30,.3)}
.btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-outline{border:2px solid var(--blue);color:var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}

/* Header */
header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 1px 0 var(--line)}
.nav{display:flex;align-items:center;height:82px;gap:20px}
/* Logo: biểu tượng + chữ STCI + slogan, đúng bố cục logo gốc */
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{height:54px;width:auto}
.logo-text{display:flex;flex-direction:column;align-items:flex-start;gap:5px}
.logo-word{height:27px;width:auto}
.divider{width:1px;height:42px;background:var(--line)}
.menu{display:flex;align-items:center;gap:6px;flex:1}
.menu a{padding:28px 14px;font-weight:500;font-size:15px;color:var(--navy);position:relative;white-space:nowrap}
.menu a:hover{color:var(--blue)}
.menu a.active{color:var(--blue)}
.menu a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px;background:var(--blue)}
.menu a svg{width:26px;height:26px;display:block}
.nav .btn{padding:11px 24px;font-size:15px;white-space:nowrap}
.burger{display:none;background:none;border:0;cursor:pointer;margin-left:auto}
.burger svg{width:28px;height:28px;color:var(--navy)}

/* Hero (trang chủ) */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#eef5ff 0%,#dbe9fb 100%)}
.hero-img{position:absolute;inset:0 0 0 auto;width:62%;background:url(../images/hero-city.jpg) center/cover no-repeat}
.hero-img::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#eaf3ff 0%,rgba(234,243,255,.85) 18%,rgba(234,243,255,0) 45%)}
.hero .wrap{position:relative;padding-top:64px;padding-bottom:120px}
.eyebrow{display:flex;align-items:center;gap:16px;font-weight:700;letter-spacing:.14em;font-size:15px;color:var(--blue);text-transform:uppercase}
.eyebrow span{color:#5a8ad6}
.eyebrow::after{content:"";width:90px;height:1px;background:#a9c2e8}
.hero h1{font-size:clamp(56px,8vw,96px);font-weight:800;line-height:1.05;letter-spacing:-.02em;margin:14px 0 10px;color:var(--blue)}
.hero h1 b{color:var(--orange);font-weight:800}
.tagline{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--navy);line-height:1.3}
.tagline span{color:var(--blue)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin:28px 0 22px;font-weight:600;font-size:16px;color:var(--navy)}
.meta div{display:flex;align-items:center;gap:12px}
.meta svg{width:24px;height:24px;color:var(--blue);flex-shrink:0}
.meta i{width:1px;height:26px;background:#9fb3d6}
.hero p.lead{max-width:540px;color:#3a4763;font-size:16px;margin-bottom:30px}
.hero .btn{font-size:17px;padding:15px 36px}

/* Banner trang con */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#eef5ff 0%,#dbe9fb 100%)}
.page-hero .hero-img{width:55%}
.page-hero .wrap{position:relative;padding-top:70px;padding-bottom:80px}
.page-hero h1{font-size:clamp(34px,4.6vw,54px);font-weight:800;line-height:1.15;color:var(--blue);margin:14px 0 12px;max-width:620px}
.page-hero h1 b{color:var(--orange)}
.page-hero p{max-width:520px;color:#3a4763;font-size:17px}
.crumb{font-size:14px;color:var(--muted);margin-bottom:6px}
.crumb a{color:var(--blue)}

/* Dải 4 dịch vụ */
.features{position:relative;z-index:2;margin-top:-62px}
.features .card{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-radius:14px;box-shadow:0 12px 40px rgba(16,37,90,.1)}
.feat{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding:24px 22px;transition:.2s}
.feat:hover{background:var(--bg)}
.feat+.feat{border-left:1px solid var(--line)}
.feat svg{width:52px;height:52px;flex-shrink:0}
.feat h3{font-size:16px;font-weight:700;color:var(--navy);line-height:1.35}
.feat p{font-size:14px;color:var(--muted);margin-top:2px}

/* Khối giới thiệu 2 cột */
.about{position:relative;padding:70px 0 90px;overflow:hidden}
.about.first{padding-top:40px}
.about::after{content:"";position:absolute;right:-160px;bottom:-200px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(120,170,240,.25),rgba(120,170,240,.05) 60%,transparent 70%);pointer-events:none}
.about .wrap,.split{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center;position:relative;z-index:1}
.photo{border-radius:14px;overflow:hidden;box-shadow:0 14px 34px rgba(16,37,90,.15);background:#fff}
.photo img{width:100%;height:auto}
.label{display:flex;align-items:center;gap:14px;color:var(--blue);font-weight:700;font-size:15px;letter-spacing:.04em;text-transform:uppercase}
.label::before{content:"";width:40px;height:3px;background:var(--orange);border-radius:3px}
h2.title,.section h2{font-size:clamp(26px,3vw,34px);line-height:1.25;color:var(--navy);font-weight:700;margin:14px 0}
.text p{color:#3a4763;margin-bottom:14px}
.text p:last-of-type{margin-bottom:26px}
.text .btn{margin-top:4px}
.quote{font-style:italic;font-weight:600;color:var(--orange);font-size:17px;margin:-4px 0 14px}
.chain{display:inline-block;background:#fff;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:10px;padding:12px 18px;font-weight:700;color:var(--blue);font-size:15px;letter-spacing:.02em}
.bullets{list-style:none;margin:0 0 20px}
.bullets li{position:relative;padding-left:26px;margin-bottom:12px;color:#3a4763}
.bullets li::before{content:"";position:absolute;left:4px;top:9px;width:9px;height:9px;border-radius:50%;background:var(--orange)}
.bullets b{color:var(--navy)}

/* Section chung */
.section{padding:80px 0}
.section.alt{background:var(--bg)}
.section .head{text-align:center;max-width:720px;margin:0 auto 46px}
.section .head .label{justify-content:center}
.section .head p{color:var(--muted)}
.split+.split{margin-top:80px}
.split.rev>.photo{order:2}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;transition:.2s}
.box:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(16,37,90,.1)}
.box .num{font-size:14px;font-weight:700;color:var(--orange);letter-spacing:.08em}
.box h3{font-size:19px;color:var(--navy);margin:8px 0 10px;line-height:1.35}
.box p{color:var(--muted);font-size:15px}
.box .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:600;color:var(--blue);font-size:15px}
.box .more svg{width:16px;height:16px}
.box .ico{width:84px;height:auto;margin-bottom:6px}
.box .principle{margin-top:12px;font-size:14px;color:var(--blue);font-weight:600}
.gap{text-align:center;padding:24px 16px;border-radius:14px;background:linear-gradient(135deg,var(--blue),#1c6fe8);color:#fff;font-weight:700;font-size:18px}
.gap small{display:block;font-weight:500;font-size:13px;opacity:.8;margin-bottom:4px;letter-spacing:.06em;text-transform:uppercase}
.cta{background:linear-gradient(120deg,var(--blue-dark),var(--blue));color:#fff;border-radius:18px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 6px}
.cta p{opacity:.85}

/* Liên hệ */
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-bottom:46px}
.contact-cards .box{text-align:center}
.contact-cards svg{width:44px;height:44px;color:var(--blue);margin:0 auto 10px}
.contact-cards h3{margin-top:4px}
.map{border-radius:14px;overflow:hidden;box-shadow:0 14px 34px rgba(16,37,90,.12)}
.map iframe{display:block;width:100%;height:450px;border:0}

/* Footer */
footer{background:var(--navy);color:#c8d4ec;padding:60px 0 0}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
footer h4{color:#fff;font-size:17px;margin-bottom:16px}
footer li{list-style:none;margin-bottom:10px;display:flex;gap:10px}
footer svg{width:20px;height:20px;flex-shrink:0;color:var(--orange);margin-top:2px}
footer a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding:20px 0;font-size:14px;text-align:center}

/* Responsive */
@media (max-width:1200px){
  .features .card{grid-template-columns:repeat(3,1fr)}
  .feat:nth-child(4){border-left:0}
  .feat:nth-child(n+4){border-top:1px solid var(--line)}
  .grid4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .divider,.nav>.btn{display:none}
  .burger{display:block}
  .menu{display:none;position:absolute;top:82px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;box-shadow:0 10px 20px rgba(0,0,0,.08);padding:8px 0}
  .menu.open{display:flex}
  .menu a{padding:14px 24px}
  .menu a.active::after{display:none}
  .hero-img,.page-hero .hero-img{position:relative;width:100%;height:260px}
  .hero-img::before{background:linear-gradient(180deg,#eaf3ff 0%,rgba(234,243,255,0) 30%)}
  .hero,.page-hero{display:flex;flex-direction:column-reverse}
  .page-hero .hero-img{height:180px}
  .hero .wrap,.page-hero .wrap{padding-top:40px;padding-bottom:40px}
  .features{margin-top:30px}
  .about .wrap,.split,.grid2,.grid3,.contact-cards,footer .cols{grid-template-columns:1fr}
  .split.rev>.photo{order:0}
  .about .wrap,.split{gap:32px}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .features .card,.grid4{grid-template-columns:1fr}
  .feat{flex-direction:row;align-items:center;gap:16px}
  .feat+.feat{border-left:0;border-top:1px solid var(--line)}
  .meta i{display:none}
  .cta{padding:30px}
  .section{padding:56px 0}
  .eyebrow{font-size:12px;display:block}
  .eyebrow::after{display:none}
  .map iframe{height:320px}
}
.split .photo.portrait{max-width:420px;width:100%;justify-self:center}

/* Chuyển ngôn ngữ VI | EN */
.lang{display:flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--muted)}
.lang svg{width:20px;height:20px;color:var(--navy)}
.lang a{padding:4px 2px}
.lang a:hover{color:var(--blue)}
.lang a.on{color:var(--blue)}
.lang span{color:#c3cde0}
@media (max-width:1024px){
  .lang{margin-left:auto}
  .burger{margin-left:6px}
}

/* Liên hệ: thông tin | bản đồ */
.contact-split{display:grid;grid-template-columns:1fr 1.5fr;gap:30px;align-items:stretch}
.clist{display:flex;flex-direction:column;padding:10px 30px 30px}
.clist:hover{transform:none}
.clist .item{display:flex;gap:16px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--line)}
.clist .item:last-of-type{border-bottom:0;margin-bottom:10px}
.clist .ic{width:52px;height:52px;border-radius:12px;background:var(--bg);display:grid;place-items:center;flex-shrink:0}
.clist .ic svg{width:24px;height:24px;color:var(--blue)}
.clist h3{font-size:16px;margin:0 0 4px}
.clist p a:hover{color:var(--blue)}
.clist .btn{align-self:flex-start;margin-top:auto}
.contact-split .map iframe{height:100%;min-height:440px}
@media (max-width:1024px){
  .contact-split{grid-template-columns:1fr}
  .contact-split .map iframe{min-height:340px}
}

/* Bù chiều cao header khi nhảy tới #mục */
[id]{scroll-margin-top:100px}

/* Logo chân trang trên nền trắng */
.flogo{display:inline-block;background:#fff;border-radius:14px;padding:14px 18px;margin-bottom:18px}
.flogo img{width:170px;height:auto}

/* Ô dịch vụ mới chiếm cả hàng */
.box.wide{grid-column:1/-1;border-color:#c9d8f2;background:linear-gradient(135deg,#fff 60%,#eef4ff)}

/* Slogan chính thức (màu theo logo) */
:root{--brand-navy:#003a7a;--brand-orange:#f76c0d}
.slogan{font-family:Montserrat,sans-serif;font-weight:600;font-size:8.6px;letter-spacing:.05em;color:var(--brand-navy);white-space:nowrap;margin:0;line-height:1.2}
.slogan i{font-style:normal;color:var(--brand-orange);margin:0 .3em}
.slogan-hero{font-size:14px;letter-spacing:.07em;white-space:normal}
.slogan-light{color:#dbe6fb;font-size:11px;margin-top:10px;white-space:normal}

/* STCI trên hero: chữ STC xanh navy, chữ I cam như logo */
.brand-word{font-family:Montserrat,"Be Vietnam Pro",sans-serif;font-weight:800;color:var(--brand-navy)!important;letter-spacing:-.01em}
.brand-word b{background:linear-gradient(180deg,#fe8604,#ff5f04);-webkit-background-clip:text;background-clip:text;color:transparent}

@media (max-width:1240px){ .nav .btn{padding:11px 18px} .menu a{padding:28px 11px} }
@media (max-width:640px){ .logo-text .slogan{display:none} .logo-mark{height:46px} .logo-word{height:24px} }
@media (max-width:560px){ .slogan-hero{font-size:11px} }
@media (min-width:561px){ .slogan-hero{white-space:nowrap} }