/* 按实际字形校准图标轮廓；桌面增加一像素视觉位移，手机保持原位。 */
:root{--brand-gap:10px;--brand-name-size:19px;--brand-name-tracking:.5px;--brand-caption-size:10px;--brand-caption-tracking:1.4px;--brand-caption-gap:4px;--brand-optical-shift:1px}
.site-header .brand,.footer-brand{gap:var(--brand-gap);font-size:var(--brand-name-size);font-weight:650;letter-spacing:var(--brand-name-tracking);line-height:1.2;white-space:nowrap;min-height:48px}
.site-header .brand>span,.footer-brand>span{display:block}
.site-header .brand small,.footer-brand small{font-size:var(--brand-caption-size);font-weight:500;letter-spacing:var(--brand-caption-tracking);line-height:1.25;margin-top:var(--brand-caption-gap);color:var(--muted)}
.brand-logo{display:block;width:32px;height:35px;object-fit:contain;object-position:center;flex:none;opacity:.9}
.site-header .brand-logo{transform:translateY(var(--brand-optical-shift))}
.footer-brand{font-size:17px}
.footer-brand .brand-logo{width:28px;height:32px}
@media(max-width:640px){:root{--brand-gap:8px;--brand-name-size:18px;--brand-caption-tracking:1.2px;--brand-optical-shift:0px}.site-header .brand{min-height:44px}.brand-logo{width:30px;height:34px}}