:root{--primary:#0a5c8f;--primary-dark:#084a73;--accent:#0ea5c9;--dark:#0f2233;--gray:#5a6b7a;--light:#f4f8fb;--white:#fff;--radius:12px;--shadow:0 8px 30px rgba(10,60,100,.08);--maxw:1200px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Helvetica,Arial,sans-serif;color:var(--dark);line-height:1.7;background:var(--white)}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
.section{padding:80px 0}
.section-title{text-align:center;font-size:2.2rem;margin-bottom:14px;color:var(--dark)}
.section-sub{text-align:center;color:var(--gray);max-width:760px;margin:0 auto 50px;font-size:1.05rem}
.eyebrow{display:block;text-align:center;color:var(--accent);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:.85rem;margin-bottom:8px}
.btn{display:inline-block;padding:14px 34px;border-radius:50px;font-weight:600;transition:.3s;cursor:pointer;border:none;font-size:1rem}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 6px 18px rgba(14,120,180,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(14,120,180,.45)}
.btn-outline{border:2px solid #fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--primary)}
/* header */
.site-header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(0,0,0,.06);z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo img{height:52px;width:auto}
.nav{display:flex;gap:6px;align-items:center}
.nav a{padding:10px 16px;border-radius:8px;color:var(--dark);font-weight:500;font-size:.98rem}
.nav a:hover,.nav a.active{color:var(--primary);background:var(--light)}
.nav-toggle{display:none;background:none;border:none;font-size:1.7rem;color:var(--primary);cursor:pointer}
/* hero */
.hero{background:linear-gradient(rgba(8,40,65,.62),rgba(8,40,65,.62)),url(/img/banner.png) center/cover no-repeat;color:#fff;text-align:center;padding:150px 20px}
.hero h1{font-size:3rem;margin-bottom:18px}
.hero p{font-size:1.25rem;max-width:720px;margin:0 auto 36px;opacity:.94}
.hero .btn{margin:0 10px}
/* cards */
.grid{display:grid;gap:28px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(10,60,100,.14)}
.card img{width:100%;object-fit:cover}
.card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.card-body h3{font-size:1.2rem;margin-bottom:10px}
.card-body p{color:var(--gray);font-size:.95rem;flex:1}
.card-body .more{margin-top:14px;font-weight:600}
.icon-card{padding:34px 26px;text-align:center}
.icon-num{font-size:2rem;font-weight:800;color:var(--accent)}
.badge{display:inline-block;background:#e6f4fa;color:var(--primary);border-radius:20px;padding:3px 14px;font-size:.8rem;font-weight:600;margin:3px 3px 3px 0}
/* feature split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow)}
.checklist{list-style:none;margin-top:18px}
.checklist li{padding-left:30px;position:relative;margin-bottom:12px;color:var(--gray)}
.checklist li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800}
/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--primary-dark),var(--primary) 55%,var(--accent));color:#fff;text-align:center;padding:80px 20px}
.cta-band h2{font-size:2.1rem;margin-bottom:16px}
.cta-band p{max-width:700px;margin:0 auto 32px;opacity:.92}
.cta-band .free-list{list-style:none;display:flex;justify-content:center;flex-wrap:wrap;gap:8px 30px;margin-bottom:34px}
.cta-band .free-list li{font-weight:500}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat b{font-size:2.6rem;color:var(--primary);display:block}
.stat span{color:var(--gray)}
/* timeline */
.timeline{max-width:700px;margin:0 auto;position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:3px;background:#d9eaf3}
.timeline-item{position:relative;margin-bottom:34px}
.timeline-item::before{content:"";position:absolute;left:-29px;top:6px;width:15px;height:15px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 3px #d9eaf3}
.timeline-item b{font-size:1.2rem;color:var(--primary)}
/* table */
.table-wrap{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;background:#fff;box-shadow:var(--shadow);border-radius:var(--radius);overflow:hidden}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid #eef3f7}
table.spec th{background:var(--light);color:var(--primary-dark);width:34%}
/* faq */
.faq-item{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}
.faq-item summary{padding:20px 24px;font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:50px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--accent)}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 24px 22px;color:var(--gray)}
/* contact form */
.contact-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:50px}
.form-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:36px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 14px;border:1px solid #d6e2ec;border-radius:8px;font-size:1rem;font-family:inherit;transition:.2s}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(14,165,201,.15)}
.form-status{display:none;margin-top:18px;padding:16px 20px;border-radius:8px;background:#e8f8ee;color:#1c7c3d;border:1px solid #bfe8cd;font-weight:600}
.form-error{display:none;margin-top:18px;padding:16px 20px;border-radius:8px;background:#fdecec;color:#b02a2a;border:1px solid #f5c6c6}
/* breadcrumb & page banner */
.page-banner{background:linear-gradient(rgba(8,40,65,.7),rgba(8,40,65,.7)),url(/img/banner.png) center/cover;color:#fff;text-align:center;padding:90px 20px}
.page-banner h1{font-size:2.4rem;margin-bottom:8px}
.breadcrumb{font-size:.92rem;opacity:.85}
.breadcrumb a{color:#cfe9f7}
/* footer */
.site-footer{background:var(--dark);color:#b9c8d4;padding:60px 0 0;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px}
.site-footer h4{color:#fff;margin-bottom:16px;font-size:1.05rem}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#b9c8d4}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:.85rem;color:#8aa0b0}
/* responsive */
@media(max-width:960px){
 .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
 .split,.contact-layout{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:repeat(2,1fr)}
 .hero h1{font-size:2.2rem}
 .nav{position:fixed;top:80px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 20px 20px;box-shadow:0 12px 24px rgba(0,0,0,.1);display:none}
 .nav.open{display:flex}
 .nav a{padding:14px}
 .nav-toggle{display:block}
}
@media(max-width:600px){
 .grid-2,.grid-3,.grid-4,.stats{grid-template-columns:1fr}
 .section{padding:56px 0}
 .section-title{font-size:1.7rem}
 .hero{padding:100px 20px}
 .hero .btn{display:block;margin:14px auto;max-width:280px}
 .footer-grid{grid-template-columns:1fr}
}