:root{--shell-blue:#084fe4;--shell-ink:#142139;--shell-muted:#68778c;--shell-line:#e2e8f1;--shell-width:1280px}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#fff;color:var(--shell-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex="0"]:focus-visible{outline:3px solid #1a5df1;outline-offset:4px}[tabindex="-1"]:focus{outline:0}[hidden]{display:none!important}::selection{background:#dce8ff;color:#0038b8}.site-shell-container,.site-shell-header-inner{width:min(var(--shell-width),calc(100% - 112px));margin-inline:auto}.site-skip-link{position:fixed;top:12px;left:16px;z-index:200;transform:translateY(-180%);background:var(--shell-ink);color:#fff;padding:12px 16px;border-radius:6px}.site-skip-link:focus{transform:translateY(0)}
.site-shell-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.97);border-bottom:1px solid #e8edf4;backdrop-filter:blur(16px)}.site-shell-header-inner{height:84px;display:flex;align-items:center;justify-content:space-between;gap:28px}.corporate-brand.dy-brand{min-height:52px}.site-shell-nav{display:flex;align-items:center;gap:32px}.site-shell-nav>a,.site-shell-family>summary{font-size:13px;font-weight:600;white-space:nowrap;min-height:44px;display:inline-flex;align-items:center;cursor:pointer}.site-shell-nav>a:not(.site-shell-experience):hover,.site-shell-nav>a[aria-current="page"],.site-shell-family:hover>summary,.site-shell-family[data-current="true"]>summary{color:var(--shell-blue)}.site-shell-family{position:relative}.site-shell-family>summary{list-style:none;gap:6px}.site-shell-family>summary::-webkit-details-marker{display:none}.site-shell-family>summary span{font-size:16px;line-height:1}.site-shell-family-menu{position:absolute;top:100%;left:-22px;width:292px;padding:16px 10px 10px;background:#fff;border:1px solid #e3eaf2;box-shadow:0 15px 40px #14284920;border-radius:5px}.site-shell-family-menu p{margin:3px 12px 9px;color:#97a6bb;font-size:9px;letter-spacing:.15em}.site-shell-family-menu>a{display:grid;grid-template-columns:26px 1fr;column-gap:7px;padding:10px 12px;border-radius:4px}.site-shell-family-menu>a:hover,.site-shell-family-menu>a:focus-visible{background:#f1f6ff}.site-shell-family-menu>a>span{grid-row:span 2;color:#8ca1bc;font-size:10px;padding-top:3px}.site-shell-family-menu strong{font-size:13px;font-weight:650;color:#1b2d48}.site-shell-family-menu small{font-size:11px;color:#8694a7;margin-top:3px}.site-shell-nav .site-shell-experience{background:#10203a;color:#fff;padding:0 19px;gap:20px;border-radius:4px}.site-shell-nav .site-shell-experience:hover{background:var(--shell-blue)}.site-shell-toggle{display:none;border:0;background:#f1f5fb;width:44px;height:44px;border-radius:5px;cursor:pointer}.site-shell-toggle span{display:block;width:19px;height:2px;background:var(--shell-ink)}
.site-shell-footer{border-top:1px solid var(--shell-line);background:#f7f9fc;padding:53px 0 24px}.site-shell-footer-top{display:grid;grid-template-columns:1fr 1.15fr 134px;gap:8%;align-items:start}.site-shell-footer-brand>p{font-size:12px;line-height:1.9;color:#728197;margin:16px 0 0}.site-shell-footer-links{display:grid;grid-template-columns:1fr 1fr;gap:22px}.site-shell-footer-links>div{display:flex;flex-direction:column;align-items:start;gap:12px}.site-shell-footer-links strong{font-size:12px;color:#273b59;margin-bottom:4px}.site-shell-footer-links a{font-size:12px;line-height:1.5;color:#697b91}.site-shell-footer-links a:hover{color:var(--shell-blue)}.site-shell-qr{text-align:center}.site-shell-qr img{width:120px;height:120px;object-fit:contain;margin:auto;background:white}.site-shell-qr strong,.site-shell-qr span{display:block}.site-shell-qr strong{font-size:11px;color:#314563;margin-top:9px}.site-shell-qr span{font-size:10px;color:#8593a5;margin-top:5px}.site-shell-footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--shell-line);padding-top:19px;margin-top:37px;font-size:10px;line-height:1.8;color:#8997a8}.site-shell-footer-bottom a:hover{color:var(--shell-blue)}
@media(max-width:1000px){.site-shell-container,.site-shell-header-inner{width:calc(100% - 72px)}.site-shell-nav{gap:19px}.site-shell-nav>a,.site-shell-family>summary{font-size:12px}.site-shell-footer-top{gap:5%;grid-template-columns:1fr 1.15fr 120px}}
@media(max-width:700px){html{scroll-padding-top:84px}.site-shell-container,.site-shell-header-inner{width:calc(100% - 40px)}.site-shell-header-inner{height:auto;min-height:70px;flex-wrap:wrap;gap:0;padding-top:8px}.corporate-brand.dy-brand{min-height:47px}.site-shell-nav{width:100%;display:flex;justify-content:space-between;flex-wrap:wrap;gap:3px 12px;padding:0 0 10px}.site-shell-nav>a,.site-shell-family>summary{font-size:11px;min-height:37px}.site-shell-nav .site-shell-experience{padding:0 12px;gap:12px;min-height:38px}.site-shell-family-menu{z-index:2;left:0;width:min(292px,calc(100vw - 40px))}.site-shell-ready .site-shell-header-inner{height:70px;padding:0;flex-wrap:nowrap;position:relative}.site-shell-ready .site-shell-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.site-shell-ready .site-shell-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}.site-shell-ready .site-shell-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.site-shell-ready .site-shell-nav{display:none;position:absolute;top:69px;left:-20px;right:-20px;width:auto;max-height:calc(100vh - 70px);overflow:auto;padding:12px 20px 20px;background:#fff;border-bottom:1px solid var(--shell-line);box-shadow:0 16px 24px #1b345110}.site-shell-ready .site-shell-nav.is-open{display:flex;flex-direction:column;align-items:stretch}.site-shell-ready .site-shell-nav>a,.site-shell-ready .site-shell-family>summary{font-size:14px;padding:12px;min-height:46px}.site-shell-ready .site-shell-family>summary{display:flex;justify-content:space-between}.site-shell-ready .site-shell-family-menu{position:static;width:100%;box-shadow:none;background:#f5f8fd;border:0;margin-bottom:7px}.site-shell-ready .site-shell-nav .site-shell-experience{justify-content:space-between;margin-top:6px}.site-shell-footer{padding-top:38px}.site-shell-footer-top{grid-template-columns:1fr auto;gap:28px 18px}.site-shell-footer-brand{grid-column:1}.site-shell-footer-links{grid-column:1;grid-row:2}.site-shell-qr{grid-column:2;grid-row:1 / span 2;align-self:start}.site-shell-qr img{width:100px;height:100px}.site-shell-footer-bottom{font-size:9px;margin-top:27px}}
@media(max-width:380px){.site-shell-container,.site-shell-header-inner{width:calc(100% - 32px)}.site-shell-ready .site-shell-nav{left:-16px;right:-16px;padding-inline:16px}.site-shell-footer-links{gap:12px}.site-shell-qr img{width:90px;height:90px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Corporate navigation: a compact product gallery with clear touch targets. */
.site-shell-family>summary{position:relative;transition:color .2s ease}
.site-shell-family>summary span{transition:transform .2s ease}
.site-shell-family[open]>summary span{transform:rotate(180deg)}
.site-shell-family-menu{left:auto;right:-108px;width:min(560px,calc(100vw - 48px));padding:22px;background:rgba(255,255,255,.98);border:1px solid #dfe8f5;border-radius:14px;box-shadow:0 24px 65px rgba(22,44,82,.15),0 4px 14px rgba(22,44,82,.06)}
.family-menu-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 0 15px;padding:0 3px 15px;border-bottom:1px solid #e9eef5}
.family-menu-heading small{display:block;font-size:9px;letter-spacing:.16em;color:#0754e9;font-weight:700}
.family-menu-heading p{margin:6px 0 0;color:#172945;font-size:15px;font-weight:700;letter-spacing:.01em}
.family-menu-heading>span{color:#97a4b5;font-size:10px;white-space:nowrap}
.family-menu-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.family-menu-grid>a{display:grid;grid-template-columns:56px minmax(0,1fr) 18px;align-items:center;gap:10px;padding:10px;border:1px solid transparent;border-radius:9px;transition:background .2s ease,border-color .2s ease,transform .2s ease}
.family-menu-grid>a:hover,.family-menu-grid>a:focus-visible{background:#f3f7ff;border-color:#e0eaff;transform:translateY(-1px)}
.family-menu-image{display:grid;place-items:center;width:56px;height:56px;background:#eff4fb;border-radius:7px;overflow:hidden}
.family-menu-image img{width:100%;height:100%;object-fit:contain}
.family-menu-copy{min-width:0;display:flex;flex-direction:column;gap:5px}
.family-menu-copy small{font-size:10px;line-height:1.35;color:#7c8da5}
.family-menu-copy strong{font-size:12px;line-height:1.4;color:#1a2b46}
.family-menu-arrow{color:#8da3c0;font-size:16px;transition:color .2s ease,transform .2s ease}
.family-menu-grid>a:hover .family-menu-arrow,.family-menu-grid>a:focus-visible .family-menu-arrow{color:#0754e9;transform:translate(2px,-2px)}
@media(max-width:700px){.site-shell-family-menu,.site-shell-ready .site-shell-family-menu{width:100%;padding:15px;background:#f5f8fd;border:1px solid #e5edf8;border-radius:10px;box-shadow:none}.family-menu-heading{margin-bottom:11px;padding-bottom:11px}.family-menu-heading>span{display:none}.family-menu-grid{grid-template-columns:1fr;gap:3px}.family-menu-grid>a{grid-template-columns:44px minmax(0,1fr) 18px;padding:8px}.family-menu-image{width:44px;height:44px}.family-menu-copy strong{font-size:13px}}
@media(prefers-reduced-motion:reduce){.site-shell-family>summary span,.family-menu-grid>a,.family-menu-arrow{transition:none}}

/* Use the browser's native scrolling, with a restrained blue-grey thumb. */
html{scrollbar-color:#aabbd0 #f5f8fc;scrollbar-width:thin}
html::-webkit-scrollbar{width:10px;height:10px}
html::-webkit-scrollbar-track{background:#f5f8fc}
html::-webkit-scrollbar-thumb{background:#aabbd0;border:3px solid #f5f8fc;border-radius:12px}
html::-webkit-scrollbar-thumb:hover{background:#7696bd}
html::-webkit-scrollbar-corner{background:#f5f8fc}
@media(forced-colors:active){html{scrollbar-color:auto}}