:root{
  --navy:#071b3a; --blue:#0b5cff; --cyan:#16c7d9; --ink:#12213a;
  --muted:#60708a; --bg:#f6f9fd; --white:#fff; --line:#dce5f1;
  --shadow:0 18px 50px rgba(9,36,78,.10); --radius:22px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{text-decoration:none;color:inherit}.container{width:min(1180px,92%);margin:auto}
.topbar{background:var(--navy);color:#dce8ff;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;gap:20px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:11px;font-weight:400;color:var(--navy)}
.logo-mark{width:43px;height:43px;border-radius:13px;background:linear-gradient(135deg,var(--navy),var(--blue),var(--cyan));display:grid;place-items:center;color:white;font-size:22px}
.logo small{display:block;color:var(--blue);font-weight:600;font-size:11px}
nav{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;margin-left:auto;gap:2px 4px;max-width:900px}
nav a{font-size:13px;font-weight:700;color:#334560;padding:8px 8px;line-height:1;white-space:nowrap;border-radius:8px;transition:color .18s ease,background .18s ease}
nav a:hover{color:var(--blue);background:#eef4ff}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;background:var(--blue);color:#fff;font-weight:800;border:0;cursor:pointer;box-shadow:0 8px 20px rgba(11,92,255,.22)}
.btn.alt{background:#eaf1ff;color:var(--blue);box-shadow:none}
.hero{padding:90px 0 75px;background:radial-gradient(circle at 80% 15%,#dffcff,transparent 30%),linear-gradient(135deg,#f8fbff,#edf4ff)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}
.eyebrow{color:var(--blue);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:13px}
h1{font-size:clamp(40px,5vw,68px);line-height:1.02;margin:14px 0 22px;color:var(--navy)}
h2{font-size:clamp(28px,3.2vw,42px);line-height:1.15;margin:0 0 14px;color:var(--navy)}
h3{color:var(--navy);margin:10px 0 7px}
.lead{font-size:19px;color:#50617b;max-width:720px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-card{background:var(--navy);color:#fff;border-radius:28px;padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-card:after{content:"";position:absolute;width:250px;height:250px;border-radius:50%;right:-100px;top:-100px;background:rgba(22,199,217,.18)}
.orbit{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:25px}
.orbit div{padding:18px;border:1px solid rgba(255,255,255,.15);border-radius:15px;background:rgba(255,255,255,.06)}
section{padding:80px 0}.section-head{max-width:760px;margin-bottom:35px}.center{text-align:center;margin-left:auto;margin-right:auto}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:0 10px 35px rgba(20,49,92,.05)}
.icon{width:46px;height:46px;border-radius:14px;background:#eaf1ff;color:var(--blue);display:grid;place-items:center;font-weight:900;font-size:20px}
.number{font-size:32px;font-weight:900;color:var(--blue)}
.band{background:var(--navy);color:#fff}.band h2,.band h3{color:#fff}.band .muted{color:#c4d2ea}
.muted{color:var(--muted)}.pill{display:inline-block;padding:6px 10px;border-radius:999px;background:#edf5ff;color:var(--blue);font-size:12px;font-weight:800;margin:4px}
.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.step{background:#fff;border:1px solid var(--line);padding:18px;border-radius:16px;text-align:center;font-weight:800}
.step1{background:#fff;border:1px solid var(--line);padding:16px;border-radius:16px;text-align:center;font-weight:800;color:var(--navy);font-size:30px}
.arrow{color:var(--blue);font-size:22px;align-self:center;text-align:center}
.quote{padding:35px;border-left:5px solid var(--cyan);background:#fff;border-radius:0 20px 20px 0;box-shadow:var(--shadow);font-size:22px;color:var(--navy);font-weight:700}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
th,td{text-align:left;padding:15px;border-bottom:1px solid var(--line)}th{background:#edf4ff;color:var(--navy)}
footer{background:#04142d;color:#c8d5ea;padding:45px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}footer h3{color:#fff}footer a{display:block;margin:7px 0;color:#c8d5ea;font-size:14px}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:25px}.form{display:grid;gap:13px}.form input,.form textarea,.form select{width:100%;padding:14px;border:1px solid var(--line);border-radius:12px;font:inherit}.form textarea{min-height:150px}
.page-hero{padding:65px 0;background:linear-gradient(135deg,#071b3a,#0b5cff);color:#fff}.page-hero h1{color:#fff;font-size:52px}.page-hero p{color:#d9e6ff;max-width:780px}
.checklist{padding-left:0;list-style:none}.checklist li{padding:9px 0 9px 28px;position:relative}.checklist li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:900}
@media(max-width:980px){.hero-grid,.contact{grid-template-columns:1fr}.grid4{grid-template-columns:repeat(2,1fr)}.grid{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:repeat(3,1fr)}header{position:static}.nav{flex-direction:column;align-items:stretch;gap:9px;padding:12px 0}.nav .logo{justify-content:center}nav{max-width:900px;margin:0 auto;justify-content:center;gap:3px 5px}nav a{font-size:12.5px;padding:7px 9px}}
@media(max-width:620px){.grid,.grid4{grid-template-columns:1fr}.timeline{grid-template-columns:1fr 1fr}.topbar .container{display:block;text-align:center}section{padding:55px 0}.hero{padding:55px 0}nav{gap:3px 4px}nav a{font-size:12px;padding:6px 8px}.nav{padding:10px 0}}

/* ---------- Product catalog (appended section) ---------- */
.cat-nav{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;padding:14px;background:#eef4ff;border:1px solid var(--line);border-radius:16px}
.cat-nav a{font-size:13px;font-weight:800;color:var(--navy);background:#fff;border:1px solid var(--line);padding:9px 15px;border-radius:999px;transition:background .2s,color .2s,border-color .2s}
.cat-nav a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.cat-block{scroll-margin-top:110px;padding:36px 0 6px;border-top:1px dashed var(--line)}
.cat-block:first-of-type{border-top:0;padding-top:0}
.cat-head{display:flex;align-items:center;gap:13px;flex-wrap:wrap;margin-bottom:8px}
.cat-head .tag{font-size:11px;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);background:#eaf1ff;border-radius:999px;padding:6px 12px}
.cat-head h3{margin:0;font-size:26px}
.cat-desc{color:var(--muted);margin:0 0 22px;max-width:860px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 35px rgba(20,49,92,.05);display:flex;flex-direction:column;transition:transform .22s,box-shadow .22s,border-color .22s}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 18px 45px rgba(20,49,92,.13);border-color:#c3d6f5}
.prod-card .thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#f3f8ff,#e4eeff);display:grid;place-items:center;padding:14px;overflow:hidden}
.prod-card .thumb img{width:100%;height:100%;object-fit:contain;transition:transform .3s}
.prod-card:hover .thumb img{transform:scale(1.05)}
.prod-card .body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.prod-card h4{margin:0 0 8px;color:var(--navy);font-size:17px;line-height:1.35}
.prod-card p{margin:0;color:var(--muted);font-size:14px;flex:1}
.prod-card .more{margin-top:14px;font-size:13px;font-weight:800;color:var(--blue)}
.featured{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;background:linear-gradient(135deg,#071b3a,#0b5cff);color:#fff;border-radius:26px;padding:32px;box-shadow:var(--shadow);overflow:hidden}
.featured .eyebrow{color:#5eeaf2}
.featured h3{color:#fff;font-size:28px;margin:10px 0 12px}
.featured p{color:#d9e6ff;margin:0 0 18px;font-size:15px}
.featured .fimg{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:18px;display:grid;place-items:center;width:100%;aspect-ratio:4/3;min-height:0}
.featured .fimg img{width:100%;height:100%;object-fit:contain}
.featured .actions{margin-top:0}
.featured .btn{background:#fff;color:var(--blue)}
.featured .btn.alt{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.3);box-shadow:none}
.totop{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;box-shadow:0 10px 26px rgba(11,92,255,.35);z-index:30;font-size:19px}
.more{display:inline-block;margin-top:13px;font-size:13px;font-weight:800;color:var(--blue)}
a.more:hover{text-decoration:underline}
@media(max-width:980px){.prod-grid{grid-template-columns:1fr 1fr}.featured{grid-template-columns:1fr}}
@media(max-width:620px){.prod-grid{grid-template-columns:1fr}.cat-head h3{font-size:22px}.featured{padding:24px}}


/* ---------- Language switcher (multilingual build) ---------- */
.lang-switch{position:relative;flex:0 0 auto;margin-left:6px}
.lang-btn{display:inline-flex;align-items:center;gap:7px;padding:8px 11px;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:#334560;font-family:inherit;font-size:13px;
  font-weight:700;line-height:1;cursor:pointer;white-space:nowrap;
  transition:border-color .18s ease,background .18s ease,color .18s ease}
.lang-btn:hover{border-color:#b9cdf2;background:#eef4ff;color:var(--blue)}
.lang-btn .ico{display:inline-flex}
.lang-btn .caret{font-size:11px;opacity:.65}
.lang-switch.open .lang-btn{border-color:var(--blue);color:var(--blue);background:#eef4ff}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;z-index:40;min-width:180px;padding:6px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:none}
.lang-switch.open .lang-menu{display:block}
.lang-menu a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:9px;
  font-size:13px;font-weight:700;color:#334560;white-space:nowrap}
.lang-menu a:hover{background:#eef4ff;color:var(--blue)}
.lang-menu a.active{color:var(--blue);background:#eef4ff}
@media(max-width:980px){.lang-switch{margin-left:4px}.lang-btn{padding:7px 10px}
  .lang-menu{right:50%;transform:translateX(50%)}}

/* ---------- Brand wordmark ---------- */
.logo{font-weight:800;letter-spacing:-.2px}
.logo small{font-weight:600;letter-spacing:0}

/* ---------- Typography per script ---------- */
html[lang^="zh"] body,html[lang^="zh"] .btn,html[lang^="zh"] .lang-btn{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,"Segoe UI",Arial,sans-serif}
html[lang^="zh"] h1,html[lang^="zh"] h2,html[lang^="zh"] h3,html[lang^="zh"] h4{line-height:1.28}
html[lang="ru"] body,html[lang="ru"] .btn,html[lang="ru"] .lang-btn{
  font-family:Inter,"Segoe UI",Arial,"Helvetica Neue",sans-serif}
html[lang="ar"] body,html[lang="ar"] .btn,html[lang="ar"] .lang-btn{
  font-family:"Noto Sans Arabic","Segoe UI",Tahoma,Arial,sans-serif}
html[lang="ar"] .eyebrow{letter-spacing:0;text-transform:none}
html[lang="ar"] h1,html[lang="ar"] h2,html[lang="ar"] h3,html[lang="ar"] h4{line-height:1.45}
html[lang="ar"] .step1{font-size:22px;line-height:1.4}
html[lang="ru"] .step1{font-size:21px;line-height:1.35}

/* ---------- RTL mirroring ---------- */
[dir="rtl"] nav{margin-left:0;margin-right:auto}
[dir="rtl"] .lang-switch{margin-left:0;margin-right:6px}
[dir="rtl"] .lang-menu{right:auto;left:0}
@media(max-width:980px){[dir="rtl"] .lang-menu{right:50%;left:auto}}
[dir="rtl"] .checklist{padding-right:0}
[dir="rtl"] .checklist li{padding-left:0;padding-right:28px}
[dir="rtl"] .checklist li:before{left:auto;right:0}
[dir="rtl"] .quote{border-left:0;border-right:5px solid var(--cyan);border-radius:20px 0 0 20px}
[dir="rtl"] .hero-card:after{right:auto;left:-100px}
[dir="rtl"] th,[dir="rtl"] td{text-align:right}
[dir="rtl"] .totop{right:auto;left:22px}
[dir="rtl"] .cat-head .tag,[dir="rtl"] .more{direction:rtl;unicode-bidi:isolate}