:root{--blue:#1F3864;--blue2:#2c4d86;--green:#2E7D5B;--gold:#C9A227;--ink:#1f2630;--muted:#55606d;
--line:#e5eaf1;--bg:#fff;--soft:#f4f7fb;--warn:#8a6d1a;--warnbg:#fff8e6;}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);
line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
img{max-width:100%}
/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px;flex-wrap:wrap}
.logo{font-size:21px;font-weight:800;letter-spacing:.4px;color:var(--blue)}
.logo .amp{color:var(--gold)}
.nav nav ul{display:flex;gap:20px;list-style:none;align-items:center;flex-wrap:wrap}
.nav nav a{font-size:15px;font-weight:600;color:#37414f;padding:6px 0;border-bottom:2px solid transparent}
.nav nav a:hover,.nav nav a.active{color:var(--blue);border-color:var(--gold);text-decoration:none}
.nav .cta{background:var(--green);color:#fff;padding:9px 15px;border-radius:22px;font-size:14px;font-weight:700}
.nav .cta:hover{background:#25664a;text-decoration:none}
.menu-toggle,.menu-btn{display:none}
/* biozid bar */
.biozid{background:var(--warnbg);border:1px solid #f0e2b6;border-left:4px solid var(--gold);color:var(--warn);
font-size:13.5px;padding:10px 14px;border-radius:8px;margin:18px 0}
.biozid b{color:#6f560f}
/* hero */
.hero{color:#fff;background:linear-gradient(135deg,var(--blue) 0%,var(--blue2) 60%,#35608f 100%);position:relative;overflow:hidden}
.hero .wrap{padding:56px 24px 52px}
.eyebrow{font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:#bcd0ea;font-weight:700}
.hero h1{font-size:40px;line-height:1.1;font-weight:800;margin:12px 0 10px;max-width:16em}
.hero .sub{font-size:18px;color:#e2ebf7;max-width:44em;margin-bottom:8px}
.hero .claim{font-size:15px;color:#9fe3c2;font-style:italic;margin-bottom:20px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 20px;border-radius:26px;font-weight:700;font-size:15px}
.btn:hover{text-decoration:none}
.btn-g{background:var(--gold);color:#20180a}.btn-g:hover{background:#d9b53b}
.btn-o{border:1.5px solid rgba(255,255,255,.55);color:#fff}.btn-o:hover{background:rgba(255,255,255,.12)}
.btn-b{background:var(--blue);color:#fff}.btn-b:hover{background:#16294a}
.btn-sm{padding:9px 15px;font-size:14px}
/* sections */
section{padding:56px 0}
.soft{background:var(--soft)}
.kicker{color:var(--green);font-weight:800;font-size:12.5px;letter-spacing:2px;text-transform:uppercase;margin-bottom:8px}
h2{font-size:27px;font-weight:800;color:var(--blue);margin-bottom:10px;line-height:1.18}
h3{font-size:19px;color:var(--ink)}
.lead{font-size:17px;color:var(--muted);max-width:54em;margin-bottom:26px}
p{margin-bottom:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.soft .card{background:#fff}
.card h3{margin-bottom:6px}
.card p{font-size:15px;color:var(--muted);margin-bottom:12px}
/* audience split */
.aud{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.audcard{border-radius:16px;padding:28px;color:#fff;position:relative;overflow:hidden}
.aud .b2b{background:linear-gradient(135deg,var(--blue),#2c4d86)}
.aud .b2c{background:linear-gradient(135deg,var(--green),#245a44)}
.audcard h3{color:#fff;font-size:22px;margin-bottom:6px}
.audcard p{color:#e8eef7;font-size:15px;margin-bottom:14px}
.audcard ul{list-style:none;margin:0 0 16px}
.audcard li{padding-left:20px;position:relative;margin:7px 0;font-size:15px}
.audcard li::before{content:"→";position:absolute;left:0;color:var(--gold);font-weight:800}
.audcard a.mini{color:#fff;font-weight:700;font-size:14px;border-bottom:1px solid rgba(255,255,255,.5)}
/* product list */
.plist{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pcard{border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;background:#fff}
.pcard .tag{font-size:10.5px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--green);margin-bottom:4px}
.pcard .tag.b2b{color:var(--blue)}
.pcard h3{font-size:18px;margin-bottom:6px}
.pcard p{font-size:14px;color:var(--muted);margin-bottom:12px}
.pcard .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;border-top:1px dashed var(--line);padding-top:12px}
.pcard .price{font-weight:800;font-size:15px;color:var(--blue)}
/* table */
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14.5px}
th,td{border:1px solid var(--line);padding:9px 11px;text-align:left}
th{background:var(--blue);color:#fff;font-weight:700}
tbody tr:nth-child(even){background:var(--soft)}
td.r,th.r{text-align:right}
/* spec list */
.spec{width:100%;border-collapse:collapse;font-size:15px}
.spec td{border:none;border-bottom:1px solid var(--line);padding:9px 4px;vertical-align:top}
.spec td.k{font-weight:700;color:var(--ink);width:38%}
.spec td.v{color:var(--muted)}
.note{font-size:13px;color:var(--muted);font-style:italic}
.pending{display:inline-block;background:#eef2f8;color:#5a6b86;font-size:12px;font-weight:700;padding:2px 8px;border-radius:10px}
/* breadcrumb */
.bc{font-size:13px;color:var(--muted);padding:14px 0 0}
.bc a{color:var(--muted)}
/* faq */
.faq details{border:1px solid var(--line);border-radius:10px;padding:4px 14px;margin:8px 0;background:#fff}
.faq summary{font-weight:700;cursor:pointer;padding:10px 0;font-size:15.5px}
.faq p{font-size:15px;color:var(--muted);padding-bottom:10px}
/* download list */
.dl{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.dlitem{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px}
.dlitem:hover{border-color:var(--green);text-decoration:none}
.dlitem .di{flex:0 0 42px;height:42px;border-radius:9px;background:#fdece9;color:#c0392b;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800}
.dlitem b{display:block;font-size:14.5px;color:var(--ink)}
.dlitem span{font-size:12.5px;color:var(--muted)}
/* contact box */
.kbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.krow{display:flex;gap:12px;margin:12px 0;align-items:flex-start}
.krow .ic{flex:0 0 34px;height:34px;border-radius:8px;background:#eaf3ec;color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800}
/* footer */
footer.site{background:var(--blue);color:#c7d3e6;padding:44px 0 20px;font-size:14px}
footer.site a{color:#c7d3e6}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:26px;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.12)}
footer h4{color:#fff;font-size:14px;margin-bottom:10px}
footer .fgrid a{display:block;margin:6px 0}
.fbrand{font-size:20px;font-weight:800;color:#fff}.fbrand .amp{color:var(--gold)}
.fbiozid{font-size:12px;color:#9fb0cc;margin-top:14px;line-height:1.5}
.fcopy{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:14px;font-size:12px;color:#9fb0cc}
@media(max-width:820px){
 .grid2,.grid3,.aud,.plist,.dl,.fgrid{grid-template-columns:1fr}
 .hero h1{font-size:30px}
 .nav nav{width:100%;order:3}
 .nav nav ul{display:none;flex-direction:column;gap:0;padding:8px 0}
 .nav nav ul li{border-top:1px solid var(--line)}
 .nav nav a{display:block;padding:11px 0}
 .menu-btn{display:inline-block;cursor:pointer;font-size:22px;color:var(--blue);background:none;border:none}
 #mtoggle:checked ~ nav ul{display:flex}
}