:root{--acs-blue: #0a4d9c;--acs-blue-dark: #063a78;--acs-blue-light: #1878d0;--acs-navy: #12233d;--acs-red: #d32027;--ink: #1d2733;--ink-soft: #4b5a6b;--line: #e2e8f0;--bg: #ffffff;--bg-soft: #f5f7fa;--bg-tint: #eef4fb;--radius: 10px;--shadow-sm: 0 1px 2px rgba(16, 32, 56, .06), 0 1px 3px rgba(16, 32, 56, .08);--shadow-md: 0 4px 12px rgba(16, 32, 56, .08), 0 2px 4px rgba(16, 32, 56, .04);--shadow-lg: 0 12px 32px rgba(16, 32, 56, .12);--max: 1240px;--font: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", 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img{height:44px;width:auto}.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.main-nav>.nav-item{position:relative}.main-nav>.nav-products{position:static}.main-nav>.nav-item>a{display:block;padding:26px 14px;color:var(--acs-navy);font-weight:600;font-size:.95rem;border-bottom:3px solid transparent}.main-nav>.nav-item>a:hover,.main-nav>.nav-item:focus-within>a{color:var(--acs-blue);border-bottom-color:var(--acs-blue);text-decoration:none}.dropdown{position:absolute;top:100%;left:0;min-width:262px;background:#fff;border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-lg);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .16s ease,transform .16s ease,visibility .16s}.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown a{display:block;padding:9px 18px;color:var(--ink);font-size:.9rem}.dropdown a:hover{background:var(--bg-tint);color:var(--acs-blue);text-decoration:none}.dropdown.right{left:auto;right:0}.mega{position:absolute;top:100%;left:50%;transform:translate(-50%) translateY(6px);width:min(1180px,calc(100vw - 40px));background:#fff;border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-lg);padding:22px 26px;display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:18px 26px;opacity:0;visibility:hidden;transition:opacity .16s ease,transform .16s ease,visibility .16s}.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%) translateY(0)}.mega h4{font-size:.83rem;text-transform:uppercase;letter-spacing:.04em;color:var(--acs-blue);margin:0 0 8px;padding-bottom:6px;border-bottom:1px solid var(--line)}.mega ul{list-style:none;margin:0;padding:0}.mega li a{display:block;padding:3px 0;font-size:.86rem;color:var(--ink-soft)}.mega li a:hover{color:var(--acs-blue);text-decoration:none}.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 12px;font-size:1.15rem;cursor:pointer;color:var(--acs-navy)}.page-hero{background:linear-gradient(120deg,var(--acs-navy) 0%,var(--acs-blue) 100%);color:#fff;padding:52px 0 46px}.page-hero h1{color:#fff;margin-bottom:8px}.page-hero p{color:#d5e2f2;margin:0;max-width:760px}.breadcrumbs{font-size:.82rem;color:#a9c1de;margin-bottom:14px}.breadcrumbs a{color:#d5e2f2}.breadcrumbs span{opacity:.6;margin:0 7px}.grid{display:grid;gap:22px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(min(100%,272px),1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(min(100%,228px),1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .18s ease,transform .18s ease,border-color .18s 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p{margin:0;font-size:.84rem;color:var(--ink-soft)}@media(max-width:1080px){.product-head{grid-template-columns:minmax(0,1fr);gap:26px}.hero-grid{grid-template-columns:minmax(0,1fr)}.hero-figure{order:-1;min-height:220px}}@media(max-width:900px){.nav-toggle{display:block}.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 0 16px;max-height:calc(100vh - 110px);overflow-y:auto;box-shadow:var(--shadow-lg)}.site-header.open .main-nav{display:flex}.main-nav>.nav-item>a{padding:12px 20px;border-bottom:1px solid var(--line)}.main-nav .dropdown,.main-nav .mega{display:none}.item{grid-template-columns:minmax(0,1fr)}.tabs{top:66px}}@media(max-width:560px){.topbar .container{justify-content:center;gap:14px;font-size:.76rem}.section{padding:40px 0}}@media 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