/* Shared navigation, page connections, and footer. */
html{scroll-padding-top:120px}.site-header{position:sticky;top:0;z-index:30;isolation:isolate;background:var(--paper)}.site-header::before{content:"";position:absolute;inset:0 calc((100vw - 100%)/-2);z-index:-1;background:var(--paper);border-bottom:1px solid var(--line)}.site-header nav a[aria-current=page]{color:#bc3518}.section-crosslink{margin-top:24px}.section-links{display:flex;gap:28px;flex-wrap:wrap;align-items:center}.home-index{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);padding:20px 0;gap:20px}.home-index a{display:flex;align-items:center;gap:16px;min-height:48px;font-size:.875rem}.home-index a>span:first-child{color:var(--muted);font-size:.75rem;font-family:monospace}.home-index a>span:last-child{margin-left:auto}.home-index a:hover{color:#bc3518}.site-footer-full{display:grid;grid-template-columns:1fr 1.5fr;gap:50px;padding-block:64px 24px}.site-footer-full .footer-intro .brand{font-size:2.125rem}.site-footer-full .footer-intro p{font-size:1rem;margin-top:18px;line-height:1.9}.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.footer-nav>div{display:flex;flex-direction:column;align-items:flex-start}.footer-nav>div>span{font-size:.75rem;color:var(--muted);margin-bottom:14px;letter-spacing:.12em}.footer-nav a{font-size:.875rem;min-height:44px;display:flex;align-items:center}.footer-nav a:hover{color:#bc3518}.footer-bottom{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding-top:20px}.site-footer-full .footer-bottom p{font-size:.8125rem}.site-footer-full .footer-bottom .text-link{font-size:.875rem}.not-found{padding-block:110px;min-height:60vh}.not-found .eyebrow{color:#bc3518}.not-found h1{font-size:clamp(2.5rem,6vw,5rem);margin:26px 0}.not-found p{font-size:1rem;margin-bottom:30px;max-width:35rem}.not-found .section-links{gap:20px}
@media(max-width:1050px){.site-header nav{gap:16px}.site-footer-full{grid-template-columns:1fr 1.8fr;gap:32px}.home-index{gap:14px}.home-index a{gap:8px}}
@media(max-width:760px){html{scroll-padding-top:100px}.home-index{grid-template-columns:1fr 1fr;gap:0 24px}.home-index a{min-height:55px}.site-footer-full{display:grid;grid-template-columns:1fr;gap:32px;padding-top:42px}.footer-nav{gap:12px}.footer-bottom{flex-wrap:wrap}.site-footer-full .footer-bottom p{order:0;flex-basis:auto}.section-links{gap:16px}.gallery a{display:block}.site-footer-full .footer-intro p{font-size:1rem}.footer-nav>div{min-width:0}.footer-nav a{overflow-wrap:anywhere}.site-footer-full .brand{white-space:normal}.not-found{padding-block:70px}}
@media(max-width:390px){.footer-nav{grid-template-columns:1fr 1fr;row-gap:24px}.home-index{column-gap:14px}}

html{scroll-padding-top:var(--header-offset,120px)}

/* Mobile shell: compact safe-area-aware header, full-screen menu overlay, footer clears the home indicator. */
@media(max-width:760px){
 .site-header{min-height:calc(64px + env(safe-area-inset-top,0px));padding-top:env(safe-area-inset-top,0px);flex-wrap:nowrap}
 .site-header .menu-toggle{min-height:48px;padding-inline:10px;margin-right:-10px}
 .site-header nav,.site-header nav.is-open{position:absolute;top:100%;left:calc((100% - 100vw)/2);width:100vw;height:calc(100vh - var(--header-offset,88px) + 28px);height:calc(100dvh - var(--header-offset,88px) + 28px);max-height:none;margin:0;padding:8px max(18px,env(safe-area-inset-right,0px)) calc(32px + env(safe-area-inset-bottom,0px)) max(18px,env(safe-area-inset-left,0px));background:var(--paper);overflow-y:auto;overscroll-behavior:contain;gap:0;z-index:1}
 .site-header nav a{font-size:1.375rem;font-weight:700;letter-spacing:-.02em;min-height:64px;padding:14px 0}
 .site-header nav .nav-cta{min-height:56px;margin-top:24px;font-size:1.0625rem;padding:14px 18px}
 html:has(#site-nav.is-open){overflow:hidden}
 .site-footer-full,.site-footer{padding-bottom:calc(24px + env(safe-area-inset-bottom,0px))}
 .not-found{min-height:60svh}
}
@media(max-width:760px) and (max-height:560px){.site-header nav a{min-height:52px;font-size:1.125rem;padding-block:10px}}

/* Brand logo */
.brand,.site-footer .brand,.site-footer-full .footer-intro .brand{display:inline-flex;align-items:flex-start;gap:10px;min-height:44px;padding-block:8px;font-size:1rem;letter-spacing:0;line-height:1;white-space:nowrap;color:var(--ink);transition:color .2s}
.brand:hover{color:var(--accent)}
.brand-logo{display:block;height:28px;width:auto;aspect-ratio:2224/184;flex-shrink:0}
.brand-logo-full{height:44px;aspect-ratio:2224/267}
.brand .brand-cn{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:.8125rem;font-weight:700;letter-spacing:.04em;margin:0;padding:0;vertical-align:baseline;line-height:1}
.brand-footer .brand-cn{font-size:.875rem;margin-top:2px}
.wordmark-band>span{line-height:0}
.wordmark-logo{display:block;width:100%;height:auto;aspect-ratio:2224/184}
@media(max-width:760px){.brand{gap:6px}.brand-logo{height:17px}.brand .brand-cn{font-size:.75rem}.brand-logo-full{height:36px}.site-footer-full .brand{white-space:nowrap}}
@media(max-width:360px){.brand-logo{height:15px}.brand-logo-full{height:30px}}
.site-header .brand{align-items:center}.site-header .brand .brand-cn{align-self:flex-start}