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var(--c-border);border-radius:3px;background:var(--c-bg);font-family:var(--f-mono);font-size:.7rem;line-height:1.4;color:var(--c-text-muted)}@media (max-width: 768px){:root{--ui-section-space: 2.5rem}.nav{--bullet-gap: var(--sp-2)}.nav__inner{padding:0 var(--sp-4)}.nav__brand{font-size:var(--ui-small-copy-size)}.nav__right{gap:var(--sp-2)}.nav__links{gap:var(--bullet-gap)}.nav__link{font-size:var(--fs-xs);letter-spacing:0;min-height:var(--nav-height)}.nav__icons{gap:var(--sp-1)}.icon-btn{width:1.75rem;height:1.75rem}.language-switch{min-width:1.75rem;height:1.75rem}.content{padding:var(--ui-section-space) var(--sp-4)}.search-modal{padding:5vh var(--sp-3) var(--sp-3)}.search-modal__inner{max-height:90vh}.search-modal__hint{display:none}}html[lang=zh] h1,html[lang=zh] h2,html[lang=zh] h3,html[lang=zh] h4,html[lang=zh] h5,html[lang=zh] h6{letter-spacing:0}html[lang=zh] .page-intro__dek,html[lang=zh] .outside-hero__dek{line-height:1.75}@media (max-width: 420px){.nav__inner{padding:0 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