.en-site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #dedee3;color:#1d1d1f;font:400 15px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
.en-site-header *,.en-site-header *::before,.en-site-header *::after{box-sizing:border-box}
.en-site-header a{color:inherit;text-decoration:none}
.en-site-header [hidden]{display:none!important}
.skip-link:focus{z-index:100!important}
.en-site-shell{width:100%;max-width:1280px;margin-inline:auto;padding-inline:40px}
.en-site-inner{min-height:88px;display:flex;align-items:center;gap:24px}
.en-site-brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;white-space:nowrap}
.en-site-brand strong{font-size:23px;font-weight:650;letter-spacing:-.03em}
.en-site-brand span{font-size:13px;color:#626268}
.en-site-nav{display:flex;align-items:center;gap:26px;margin-left:4px}
.en-site-nav a{display:inline-flex;align-items:center;min-height:44px;color:#626268;font-size:13px;font-weight:500;white-space:nowrap}
.en-site-nav a:hover{color:#1d1d1f;text-decoration:underline;text-underline-offset:5px}
.en-site-nav a[aria-current="page"]{color:#1d1d1f;font-weight:500;text-decoration:underline;text-underline-offset:5px}
.en-nav-free{display:inline-flex;align-items:center;margin-left:5px;padding:1px 5px;border-radius:999px;background:#eef7ee;color:#1f6b2a;font-size:9px;font-weight:650;line-height:1.5;letter-spacing:.02em;text-transform:uppercase;text-decoration:none}
.en-site-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.en-site-language{display:inline-flex;align-items:center;min-height:44px;color:#626268;font-size:13px;font-weight:600;white-space:nowrap}
.en-site-menu{display:none;position:relative}
.en-site-menu summary{display:flex;align-items:center;min-height:44px;padding:0 4px;font-size:13px;font-weight:600;cursor:pointer;list-style:none}
.en-site-menu summary::-webkit-details-marker{display:none}
.en-site-menu nav{position:absolute;top:calc(100% + 4px);right:0;z-index:60;display:grid;gap:2px;min-width:210px;padding:8px;border:1px solid #dedee3;border-radius:10px;background:#fff;box-shadow:0 16px 40px rgba(0,0,0,.14)}
.en-site-menu nav a{display:flex;align-items:center;min-height:44px;padding:0 10px;border-radius:6px;color:#626268;font-size:14px}
.en-site-menu nav a:hover,.en-site-menu nav a[aria-current="page"]{background:#f5f5f7;color:#1d1d1f;text-decoration:none}
@media(max-width:1100px){
  .en-site-shell{padding-inline:20px}
  .en-site-inner{min-height:64px;gap:10px}
  .en-site-brand strong{font-size:20px}
  .en-site-nav{display:none}
  .en-site-menu{display:block}
  .en-site-tools{gap:10px}
}
@media(max-width:400px){.en-site-shell{padding-inline:16px}.en-site-brand span{display:none}}