@keyframes fadeInUp{0%{opacity:0;transform:translateY(1em)}to{opacity:1;transform:translateY(0)}}.post-item{animation:fadeInUp .4s ease both}.post-item:nth-child(1){animation-delay:.05s}.post-item:nth-child(2){animation-delay:.1s}.post-item:nth-child(3){animation-delay:.15s}.post-item:nth-child(4){animation-delay:.2s}.post-item:nth-child(5){animation-delay:.25s}.post-item:nth-child(n+6){animation-delay:.25s}.prose main{animation:fadeInUp .5s ease both}.prose img{animation:fadeIn .5s ease both}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}:root{--color-bg: #fafafa;--color-text: #1a1a1a;--color-muted: #666;--color-border: #e0e0e0;--color-link: #0366d6;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", "PingFang SC", monospace;--font-size-base: 18px;--line-height-base: 1.8;--sidebar-width: 200px;--content-width: 700px;--gap-section: 3rem;--header-height: 56px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--font-size-base);-webkit-font-smoothing:antialiased}body{font-family:var(--font-sans);line-height:var(--line-height-base);color:var(--color-text);background:var(--color-bg)}a{color:var(--color-link);text-decoration:none}a:hover{text-decoration:underline}.page-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);position:fixed;top:0;left:0;height:100vh;display:flex;flex-direction:column;justify-content:center;padding:2rem 1.5rem;border-right:1px solid var(--color-border);z-index:100;background:var(--color-bg)}.sidebar-name{font-size:1.2rem;font-weight:600;margin-bottom:.25rem;color:var(--color-text)}.sidebar-nav{list-style:none;padding:0;margin:1.5rem 0}.sidebar-nav li{margin-bottom:.5rem}.sidebar-nav a{color:var(--color-muted);text-decoration:none;font-size:.95rem;transition:color .15s}.sidebar-nav a:hover{color:var(--color-text)}.sidebar-footer{margin-top:auto;font-size:.8rem;color:var(--color-muted)}.main-content{margin-left:var(--sidebar-width);flex:1;padding:3rem 2rem;max-width:calc(var(--sidebar-width) + var(--content-width) + 4rem)}@media(max-width:767px){.main-content{margin-left:0;max-width:none;padding:calc(var(--header-height) + 1.5rem) 1rem 2rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.prose{max-width:var(--content-width);margin:0 auto;padding:0 1rem}.prose h1{font-size:2em;margin:1.5em 0 .5em;font-weight:700}.prose h2{font-size:1.5em;margin:1.5em 0 .5em;font-weight:600}.prose h3{font-size:1.2em;margin:1.2em 0 .4em;font-weight:600}.prose p{margin:0 0 1.2em}.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.5em}.prose li{margin-bottom:.3em}.prose blockquote{border-left:3px solid var(--color-border);padding-left:1em;margin:1.2em 0;color:var(--color-muted)}.prose pre{background:#f5f5f5;padding:1em;border-radius:4px;overflow-x:auto;font-family:var(--font-mono);font-size:.9em;line-height:1.5}.prose code{font-family:var(--font-mono);font-size:.9em;background:#f0f0f0;padding:.2em .4em;border-radius:3px}.prose pre code{background:none;padding:0}.prose img{max-width:100%;height:auto;display:block;margin:1.5em auto}.prose hr{border:none;border-top:1px solid var(--color-border);margin:2em 0}.prose .katex{font-size:1.1em}html[lang=zh] .prose{line-height:1.9}html[lang=zh] .prose p{text-align:justify}html[lang=zh] .prose h2,html[lang=zh] .prose h3{letter-spacing:.02em}.webgl-block{margin:1.5em 0;border:1px solid var(--color-border);border-radius:4px;overflow:hidden}.webgl-block canvas{display:block;width:100%;min-height:300px;background:#f5f5f5}.webgl-fallback{padding:3em 1em;text-align:center;color:var(--color-muted);font-size:.9em;background:#f5f5f5;border:1px dashed var(--color-border);border-radius:4px}.top-bar[data-astro-cid-k4cmclh2]{display:none;position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:0 1rem;align-items:center;justify-content:space-between;z-index:200}.top-bar-name[data-astro-cid-k4cmclh2]{font-weight:600;color:var(--color-text);text-decoration:none}.hamburger[data-astro-cid-k4cmclh2]{display:flex;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px}.hamburger[data-astro-cid-k4cmclh2] span[data-astro-cid-k4cmclh2]{display:block;width:20px;height:2px;background:var(--color-text);transition:transform .2s}.sidebar-overlay[data-astro-cid-k4cmclh2]{display:none;position:fixed;inset:0;background:#0000004d;z-index:99}.sidebar-overlay[data-astro-cid-k4cmclh2].open{display:block}@media(max-width:767px){.sidebar[data-astro-cid-k4cmclh2]{position:fixed;left:-280px;top:var(--header-height);width:260px;height:calc(100vh - var(--header-height));justify-content:flex-start;padding-top:2rem;transition:left .25s ease;z-index:100}.sidebar[data-astro-cid-k4cmclh2].open{left:0}.top-bar[data-astro-cid-k4cmclh2]{display:flex}.sidebar-footer[data-astro-cid-k4cmclh2]{display:none}body.no-scroll{overflow:hidden}}.language-toggle[data-astro-cid-got23tqz]{position:fixed;top:1rem;right:1rem;z-index:100;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--color-link, #0366d6);color:#fff;font-size:.85rem;font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:opacity .2s,transform .2s;box-shadow:0 2px 8px #00000026}.language-toggle[data-astro-cid-got23tqz]:hover{transform:scale(1.05)}.language-toggle[data-astro-cid-got23tqz].dimmed{opacity:.4;cursor:default;background:#999}@media(max-width:768px){.language-toggle[data-astro-cid-got23tqz]{top:.5rem;right:.5rem;width:36px;height:36px;font-size:.75rem}}