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var(--color-accent);background:var(--color-paper-raised);padding:18px 20px}.mdx-callout-title{color:var(--color-accent);text-transform:uppercase;margin:0 0 6px;font-size:13px;font-weight:800}.article-footer{max-width:var(--article-reading-width);margin:56px auto 0}.back-link{color:var(--color-accent);text-transform:uppercase;font-size:13px;font-weight:800;text-decoration:none;display:inline-flex}.empty-state{max-width:520px;color:var(--color-muted)}@media (max-width:1120px){.article-shell-with-structure{display:block}.article-shell-with-structure .article-main{max-width:var(--article-reading-width);margin:0 auto}.article-shell-with-structure .article-body{max-width:var(--article-reading-width)}.article-structure{display:none}}@media (max-width:860px){.site-frame{width:min(100% - 28px,720px)}.site-footer{flex-direction:column;align-items:flex-start}.site-header{align-items:center}.site-header-actions{flex-wrap:nowrap;justify-content:flex-end;align-items:center}.site-nav{flex-wrap:nowrap}.site-main{padding:40px 0 64px}.home-layout,.split-page{grid-template-columns:1fr;gap:48px}.hero-panel{padding:4px 0 48px}.page-title{font-size:42px;line-height:1.12}.hero-panel .page-title,:lang(zh) .hero-panel .page-title{font-size:46px;line-height:1.1}.hero-masthead-rule{grid-template-columns:48px 48px;gap:8px;margin:36px 0 22px}.hero-masthead-accent,.hero-masthead-secondary{height:6px}.hero-deck,:lang(zh) .hero-deck{grid-template-columns:none;gap:normal;width:100%;max-width:none;margin-left:0;font-size:20px;line-height:1.55}.home-post-list{grid-template-columns:1fr;gap:18px}.home-post-list .post-card-featured{grid-column:auto;padding:22px}.home-post-list .post-card-featured h2{font-size:28px}.home-post-list .post-card:not(.post-card-featured):not(:last-child){border-bottom:1px solid var(--color-rule)}.page-intro,.article-deck{font-size:18px}.section-heading{flex-direction:column;align-items:flex-start}.post-card-featured{box-shadow:6px 6px 0 var(--color-feature-shadow);padding:22px}.post-card h2,.post-card-featured h2{font-size:28px}.article-header h1{font-size:40px;line-height:1.06}.article-body{font-size:17px}}@media (max-width:720px){.site-header{gap:16px;padding:18px 0}.site-header-actions{gap:4px}.language-switcher svg{transform:translate(10px)}.site-header-actions>.site-nav{display:none}.mobile-navigation{display:block}}@media (max-width:520px){.indexed-card{box-shadow:5px 5px 0 var(--color-rule);grid-template-columns:34px minmax(0,1fr);gap:16px;padding:20px}.indexed-card-title{font-size:30px}.indexed-card-description{margin-top:10px}}@media (prefers-reduced-motion:reduce){.mobile-menu-icon{transition:none}.mobile-menu-backdrop,.mobile-menu-panel,.mobile-menu-panel a{animation:none}.indexed-card{transition:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}