:root{--navy:#0d2c4f;--navy2:#123a66;--blue:#1c5a96;--accent:#f0a437;--accent2:#e8912a;--bg:#f5f7fa;--text:#2b3440;--muted:#5f6b78;--line:#e3e8ef;--ok:#1e8e5a;--radius:12px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"Noto Sans",sans-serif;color:var(--text);background:#fff;line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--accent2)}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3,h4{font-family:"Georgia","Times New Roman",serif;color:var(--navy);line-height:1.25}
h1{font-size:2.2rem}h2{font-size:1.8rem}h3{font-size:1.25rem}
.section{padding:64px 0}
.section.alt{background:var(--bg)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{position:relative;display:inline-block;padding-bottom:14px}
.section-title h2::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:64px;height:3px;background:var(--accent);border-radius:2px}
.section-title p{color:var(--muted);max-width:720px;margin:12px auto 0}
/* header */
.topbar{background:var(--navy);color:#cfe0f2;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:8px;padding-bottom:8px;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(6px);box-shadow:0 2px 12px rgba(13,44,79,.08);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:46px;height:46px;border-radius:8px;object-fit:cover}
.brand .bname{font-family:Georgia,serif;font-weight:700;color:var(--navy);font-size:1.05rem;line-height:1.2}
.brand .bname small{display:block;font-family:inherit;font-weight:400;color:var(--muted);font-size:.72rem;letter-spacing:.04em}
nav.main ul{display:flex;list-style:none;gap:6px}
nav.main a{display:block;padding:10px 14px;color:var(--text);font-weight:600;font-size:.92rem;border-radius:8px}
nav.main a:hover,nav.main a.active{color:var(--blue);background:#eef3f9}
.nav-toggle{display:none;background:none;border:1.5px solid var(--navy);border-radius:8px;padding:8px 10px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);margin:4px 0;transition:.2s}
/* buttons */
.btn{display:inline-block;padding:12px 26px;border-radius:8px;font-weight:700;font-size:.95rem;transition:.2s;border:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2);color:#fff}
.btn-outline{border:2px solid #fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy2);color:#fff}
/* hero */
.hero{position:relative;color:#fff;padding:110px 0;text-align:center;background:linear-gradient(rgba(9,29,54,.82),rgba(9,29,54,.86)),url(/img/banner.jpg) center/cover no-repeat}
.hero h1{color:#fff;font-size:2.6rem;max-width:820px;margin:0 auto 18px}
.hero p{max-width:740px;margin:0 auto 30px;color:#dbe7f4;font-size:1.08rem}
.hero .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-badge{display:inline-block;background:rgba(240,164,55,.18);border:1px solid rgba(240,164,55,.6);color:#ffd79a;padding:6px 16px;border-radius:999px;font-size:.85rem;letter-spacing:.06em;margin-bottom:20px}
/* trust bar */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust .container{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:22px 20px}
.trust-item{text-align:center;padding:10px}
.trust-item strong{display:block;color:var(--navy);font-size:1rem}
.trust-item span{color:var(--muted);font-size:.85rem}
/* grids */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(13,44,79,.12)}
.card .thumb{background:#fff;border-bottom:1px solid var(--line);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:14px}
.card .thumb img{max-height:100%;object-fit:contain}
.card .body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column;gap:10px}
.card h3{font-size:1.08rem}
.card p{color:var(--muted);font-size:.9rem;flex:1}
.card .more{font-weight:700;color:var(--blue);font-size:.9rem}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.feature .ico{width:54px;height:54px;margin:0 auto 14px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem}
.feature h3{font-size:1.05rem;margin-bottom:8px}
.feature p{color:var(--muted);font-size:.9rem}
/* split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:0 12px 30px rgba(13,44,79,.14);width:100%}
.split h2{margin-bottom:16px}
.split p{margin-bottom:14px;color:var(--muted)}
.checklist{list-style:none;margin:8px 0 20px}
.checklist li{padding-left:30px;position:relative;margin-bottom:10px;color:var(--text)}
.checklist li::before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--accent);color:#fff;font-size:.75rem;display:flex;align-items:center;justify-content:center;font-weight:700}
/* cta band */
.cta-band{background:linear-gradient(120deg,var(--navy),var(--blue));color:#fff;text-align:center;padding:58px 20px}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:#cfe0f2;margin-bottom:24px}
/* tables */
table.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.spec th,table.spec td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:.95rem}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}
table.spec th{color:var(--navy);width:42%;font-weight:600;background:#f2f6fb}
/* product detail */
.pd-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.pd-img{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;align-items:center;justify-content:center}
.pd-img img{max-height:460px;object-fit:contain}
.pd-info h1{font-size:1.9rem;margin-bottom:12px}
.pd-info .lead{color:var(--muted);margin-bottom:22px}
.prose h2{margin:34px 0 14px}
.prose h3{margin:26px 0 10px;color:var(--navy2)}
.prose p{margin-bottom:14px;color:#3a4653}
.prose ol,.prose ul{margin:0 0 18px 22px;color:#3a4653}
.prose li{margin-bottom:8px}
/* faq */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy);list-style:none;position:relative;padding-right:48px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--accent)}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 22px 20px;color:var(--muted)}
/* contact */
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.info-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.info-box h3{margin-bottom:14px}
.info-box p{color:var(--muted);font-size:.95rem;margin-bottom:12px}
form.contact{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 8px 24px rgba(13,44,79,.06)}
form.contact .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.contact label{display:block;font-weight:600;font-size:.88rem;color:var(--navy);margin:14px 0 6px}
form.contact input,form.contact textarea,form.contact select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:8px;font:inherit;color:var(--text);background:#fbfcfe}
form.contact input:focus,form.contact textarea:focus,form.contact select:focus{outline:none;border-color:var(--blue)}
form.contact textarea{min-height:130px;resize:vertical}
.hp-field{position:absolute!important;left:-9999px!important;top:-9999px!important;height:0;width:0;opacity:0}
.form-status{margin-top:18px;padding:16px 18px;border-radius:8px;display:none}
.form-status.ok{display:block;background:#e9f7f0;border:1px solid #b5e3cc;color:var(--ok);font-weight:600}
.form-status.err{display:block;background:#fdf0ef;border:1px solid #f2c1bd;color:#c0392b}
/* breadcrumb */
.crumbs{background:var(--bg);border-bottom:1px solid var(--line);padding:14px 0;font-size:.88rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
/* footer */
footer.site{background:var(--navy);color:#b9cde0;padding:52px 0 0;margin-top:0}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:38px;padding-bottom:36px}
footer.site h4{color:#fff;margin-bottom:14px;font-size:1rem}
footer.site a{color:#b9cde0}
footer.site a:hover{color:#fff}
footer.site ul{list-style:none}
footer.site li{margin-bottom:8px;font-size:.92rem}
footer.site .fbrand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
footer.site .fbrand img{width:44px;height:44px;border-radius:8px}
footer.site .fbrand strong{color:#fff;font-family:Georgia,serif}
footer.site .copy{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:.82rem;color:#8fa9c2}
/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.vis{opacity:1;transform:none}
/* responsive */
@media(max-width:960px){
 .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
 .split,.pd-layout,.contact-layout{grid-template-columns:1fr}
 footer.site .cols{grid-template-columns:1fr 1fr}
 .trust .container{grid-template-columns:repeat(2,1fr)}
 nav.main ul{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 20px;box-shadow:0 12px 24px rgba(13,44,79,.15);display:none}
 nav.main ul.open{display:flex}
 .nav-toggle{display:block}
}
@media(max-width:600px){
 .grid-3,.grid-4{grid-template-columns:1fr}
 footer.site .cols{grid-template-columns:1fr}
 .hero h1{font-size:1.8rem}.hero{padding:80px 0}
 h1{font-size:1.7rem}h2{font-size:1.45rem}
 form.contact .row{grid-template-columns:1fr}
}