:root{--dark:#0B1220;--dark2:#111C2E;--navy:#16233A;--primary:#F59E0B;--primary-mid:#FBBF24;
--primary-dark:#B45309;--gray-50:#F8FAFC;--gray-100:#F1F5F9;--gray-200:#E2E8F0;--gray-400:#94A3B8;
--gray-500:#64748B;--gray-600:#475569;--gray-700:#334155;--gray-900:#0F172A;--radius-sm:8px;
--radius-md:14px;--radius-lg:20px;--shadow-sm:0 1px 2px rgba(15,23,42,.06);
--shadow-md:0 6px 20px rgba(15,23,42,.10);--shadow-lg:0 18px 50px rgba(15,23,42,.16);
--max-w:1200px;--transition:all .22s cubic-bezier(.4,0,.2,1)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Inter,'Helvetica Neue',Helvetica,Arial,'PingFang SC',sans-serif;color:var(--gray-900);
background:#fff;line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.22;font-weight:800;letter-spacing:-.015em}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 20px}
/* header */
.top{position:sticky;top:0;z-index:60;background:rgba(11,18,32,.96);backdrop-filter:blur(10px);
border-bottom:1px solid rgba(255,255,255,.08)}
.top-in{max-width:var(--max-w);margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;font-size:19px;letter-spacing:-.02em}
.logo img{width:34px;height:34px;border-radius:8px}
.logo small{display:block;font-size:9.5px;font-weight:600;letter-spacing:.14em;color:var(--primary-mid);
text-transform:uppercase;line-height:1}
.nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav a{color:rgba(255,255,255,.8);font-size:14px;font-weight:500;transition:var(--transition)}
.nav a:hover,.nav a.on{color:var(--primary-mid)}
.nav .cta{background:var(--primary);color:var(--dark);padding:9px 18px;border-radius:var(--radius-sm);font-weight:700}
.nav .cta:hover{background:var(--primary-mid);color:var(--dark)}
.burger{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer;margin-left:auto}
/* hero */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;min-height:520px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg picture,.hero-bg img{display:block;width:100%;height:100%;object-fit:cover;object-position:right center}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
background:linear-gradient(90deg,rgba(8,12,22,.97) 0%,rgba(8,12,22,.92) 30%,rgba(8,12,22,.55) 62%,rgba(8,12,22,.12) 100%)}
.hero-in{position:relative;z-index:2;max-width:var(--max-w);margin:0 auto;padding:74px 20px;width:100%}
.badge{display:inline-block;background:rgba(245,158,11,.14);border:1px solid rgba(245,158,11,.4);
color:var(--primary-mid);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
padding:6px 13px;border-radius:99px}
.hero h1{font-size:clamp(32px,5vw,56px);margin:18px 0 16px;max-width:15ch}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero p.lead{font-size:16.5px;color:rgba(255,255,255,.8);max-width:640px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 34px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:22px}
.hero-stat strong{display:block;font-size:25px;color:var(--primary-mid);font-weight:800}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.6);text-transform:uppercase;letter-spacing:.07em}
/* buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:var(--radius-sm);font-weight:600;font-size:14.5px;
transition:var(--transition);border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--primary);color:var(--dark)}
.btn-primary:hover{background:var(--primary-mid);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1)}
.btn-ghost{border-color:var(--gray-200);color:var(--gray-900);background:#fff}
.btn-ghost:hover{border-color:var(--gray-400);box-shadow:var(--shadow-sm)}
/* sections */
section{padding:56px 0}
.sec-head{margin-bottom:32px;max-width:840px}
.sec-head h2{font-size:clamp(24px,3.2vw,34px)}
.sec-head p{color:var(--gray-600);margin-top:10px;font-size:16px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.alt{background:var(--gray-50)}
/* cards */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid var(--gray-200);border-radius:var(--radius-md);overflow:hidden;background:#fff;
transition:var(--transition);display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--gray-400)}
.card-img{background:linear-gradient(180deg,#fff,#F1F5F9);display:flex;align-items:center;justify-content:center;
padding:16px;height:230px}
.card-img picture,.card-img img{max-height:100%;width:auto;object-fit:contain}
.card-body{padding:16px 18px 20px;flex:1;display:flex;flex-direction:column;gap:6px}
.card h3{font-size:17px}
.card .meta{font-size:13px;color:var(--gray-500);display:flex;gap:10px;flex-wrap:wrap}
.card .meta b{color:var(--gray-900)}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
padding:3px 9px;border-radius:99px;background:var(--gray-100);color:var(--gray-600)}
.tag.pure{background:#ECFDF5;color:#047857}.tag.mod{background:#FEF3C7;color:#B45309}
.tag.jump{background:#EFF6FF;color:#1D4ED8}
.card .go{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--primary-dark)}
/* series tiles */
.series-card{border-radius:var(--radius-lg);overflow:hidden;position:relative;background:var(--dark);color:#fff;
min-height:300px;display:flex;align-items:flex-end;padding:26px;transition:var(--transition)}
.series-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.series-card .im{position:absolute;inset:0;z-index:0;opacity:.75}
.series-card .im picture,.series-card .im img{width:100%;height:100%;object-fit:cover}
.series-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,12,22,.15) 0%,rgba(8,12,22,.85) 72%)}
.series-card .txt{position:relative;z-index:2}
.series-card h3{font-size:21px;margin-bottom:6px}
.series-card p{font-size:13.5px;color:rgba(255,255,255,.8)}
.series-card .count{font-size:12px;color:var(--primary-mid);font-weight:700;letter-spacing:.08em;
text-transform:uppercase;margin-bottom:8px;display:block}
/* spec table */
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table tr{border-bottom:1px solid var(--gray-200)}
.spec-table th{text-align:left;padding:13px 16px 13px 0;font-weight:600;color:var(--gray-600);width:34%;
vertical-align:top}
.spec-table td{padding:13px 0;color:var(--gray-900)}
.spec-table tr:last-child{border-bottom:0}
/* product layout */
.pgrid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.pimg{background:linear-gradient(180deg,#fff,#F1F5F9);border:1px solid var(--gray-200);
border-radius:var(--radius-md);padding:22px;text-align:center}
.pimg picture,.pimg img{margin:0 auto;max-height:440px;width:auto;object-fit:contain}
.crumb{font-size:13px;color:var(--gray-500);margin-bottom:16px}
.crumb a{color:var(--primary-dark);font-weight:600}
.facts{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 22px}
.fact{background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius-sm);
padding:10px 14px;min-width:120px}
.fact b{display:block;font-size:19px;color:var(--gray-900)}
.fact span{font-size:11.5px;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em}
/* trust / cert bars */
.bar{background:var(--gray-50);border-top:1px solid var(--gray-200);border-bottom:1px solid var(--gray-200);
padding:22px 0}
.bar-in{max-width:var(--max-w);margin:0 auto;padding:0 20px;display:flex;gap:14px;flex-wrap:wrap;
align-items:center;justify-content:center;font-size:13px;color:var(--gray-600)}
.chip{border:1px solid var(--gray-200);background:#fff;border-radius:99px;padding:7px 15px;font-weight:600;
font-size:12.5px;color:var(--gray-700)}
/* dark band */
.band{background:var(--dark);color:#fff}
.band .sec-head h2{color:#fff}.band .sec-head p{color:rgba(255,255,255,.72)}
.band .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
.band .card h3,.band .card .meta b{color:#fff}
/* stats band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats .item strong{display:block;font-size:30px;font-weight:800;color:var(--primary-mid)}
.stats .item span{font-size:12.5px;color:rgba(255,255,255,.66);text-transform:uppercase;letter-spacing:.06em}
.note{font-size:12.5px;color:var(--gray-500);margin-top:14px;text-align:center}
.band .note{color:rgba(255,255,255,.5)}
/* faq */
.faq{max-width:900px;margin:0 auto}
.faq details{border:1px solid var(--gray-200);border-radius:var(--radius-sm);margin-bottom:10px;background:#fff}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:700;font-size:15.5px;list-style:none;display:flex;
justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--primary);font-size:20px;font-weight:800;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 20px 18px;color:var(--gray-600);font-size:14.5px}
/* contact / quote */
.quote{background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:40px;text-align:center}
.quote h2{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.quote p{color:rgba(255,255,255,.75);max-width:640px;margin:0 auto 22px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px;text-align:left}
.contact-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
border-radius:var(--radius-md);padding:18px 20px}
.contact-item b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--primary-mid);
margin-bottom:6px}
.contact-item a{font-size:16px;font-weight:600;color:#fff;word-break:break-all}
/* footer */
footer{background:#070C16;color:rgba(255,255,255,.66);padding:52px 0 26px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px;margin-bottom:34px}
footer h4{color:#fff;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;color:rgba(255,255,255,.66);padding:4px 0;transition:var(--transition)}
footer a:hover{color:var(--primary-mid)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;
gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.45)}
/* float */
.wa{position:fixed;right:20px;bottom:20px;z-index:70;background:#25D366;color:#fff;border-radius:99px;
padding:13px 20px;font-weight:700;font-size:14px;box-shadow:var(--shadow-lg);display:flex;gap:8px;align-items:center}
.wa:hover{transform:translateY(-2px)}
/* figures + sheets */
.sheet{margin-top:26px;border:1px solid var(--gray-200);border-radius:var(--radius-md);overflow:hidden;background:#fff}
.sheet picture,.sheet img{width:100%;height:auto}
.caption{font-size:12.5px;color:var(--gray-500);padding:10px 14px;background:var(--gray-50);
border-top:1px solid var(--gray-200)}
/* responsive */
@media(max-width:960px){
.g3,.g4,.pgrid,.contact-grid,.stats,.foot-grid{grid-template-columns:1fr 1fr}
.nav{display:none}.burger{display:block}
.hero{min-height:0;padding:0}
.hero-in{padding:56px 20px}
.hero::before{background:linear-gradient(180deg,rgba(8,12,22,.96) 0%,rgba(8,12,22,.93) 45%,rgba(8,12,22,.78) 100%)}
.hero-bg img{object-position:70% center}
}
@media(max-width:640px){
.g2,.g3,.g4,.pgrid,.contact-grid,.stats,.foot-grid{grid-template-columns:1fr}
section{padding:42px 0}
.quote{padding:28px 20px}
}