:root{--bg: #ffffff;--bg-secondary: #f7f7f5;--bg-hover: #ebebe9;--text-primary: #37352f;--text-secondary: #6b6a66;--text-muted: #9b9a97;--border-color: #ebeae7;--border-strong: #d3d1cd;--accent-1: #2383e2;--accent-2: #37352f;--accent-3: #2383e2;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 10px;--radius-xl: 12px;--shadow-sm: 0 1px 2px rgba(55, 53, 47, .06);--shadow-md: 0 2px 8px rgba(55, 53, 47, .08);--shadow-lg: 0 8px 24px rgba(55, 53, 47, .1);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--container: 860px;--content-max: 720px;--sidebar-w: 260px}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.65;color:var(--text-primary);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none;transition:color .12s}a:hover{color:var(--accent-1)}img{max-width:100%;height:auto;border-radius:var(--radius-md)}h1,h2,h3,h4{line-height:1.35;letter-spacing:-.012em;margin:1.4em 0 .55em;color:var(--text-primary)}h1{font-size:1.9rem;font-weight:700}h2{font-size:1.45rem;font-weight:700}h3{font-size:1.12rem;font-weight:600}h4{font-size:1rem;font-weight:600}p{margin:0 0 1em}:is(h1,h2,h3,h4) code{font-size:.85em}.app{display:flex;min-height:100vh}.main{flex:1;min-width:0;display:flex;flex-direction:column}.page{flex:1;width:100%;max-width:var(--container);margin:0 auto;padding:0 2.5rem}.section-label{display:block;font-size:.8rem;font-weight:500;color:var(--text-muted);margin-bottom:.6rem}.section-title{font-size:clamp(1.5rem,3.5vw,1.9rem);font-weight:700;letter-spacing:-.012em;margin:0 0 .5rem}.section-sub{color:var(--text-secondary);margin:0;max-width:60ch}.page-head{padding:2.8rem 0 1.6rem;border-bottom:1px solid var(--border-color);margin-bottom:1.8rem}.page-head .section-sub{margin-top:.6rem}.hl{background-image:linear-gradient(transparent 64%,#2383e229 64%)}.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.25rem;border-radius:6px;font-size:.9rem;font-weight:500;color:#fff;background:var(--accent-1);transition:background .12s}.btn:hover{color:#fff;background:#1a73d0}.btn-ghost{background:var(--bg);color:var(--text-primary);border:1px solid var(--border-strong)}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-secondary)}.cat-chip{display:inline-block;font-size:.78rem;font-weight:500;color:var(--accent-1);background:#2383e214;padding:.14rem .55rem;border-radius:4px}.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.82rem;color:var(--text-muted)}.post-meta .dot{color:var(--border-strong)}.tag{font-size:.78rem;font-weight:500;color:var(--text-secondary);background:var(--bg-secondary);border-radius:4px;padding:.14rem .55rem;transition:background .12s,color .12s}.tag:hover{color:var(--accent-1);background:var(--bg-hover)}.grid{display:grid;gap:1.25rem}.grid-2{grid-template-columns:repeat(2,1fr)}.rule-head{display:flex;align-items:center;gap:1rem;margin-bottom:1.4rem}.rule-head .rule-label{font-size:.85rem;font-weight:600;color:var(--text-muted);white-space:nowrap}.rule-head .rule{flex:1;border-top:1px solid var(--border-color)}@media(max-width:900px){.hide-mobile{display:none!important}}@media(max-width:720px){.app{flex-direction:column}.page{padding:0 1.25rem}.grid-2{grid-template-columns:1fr}}.prose{font-size:1.02rem;line-height:1.8;color:var(--text-primary)}.prose h2{font-size:1.35rem;margin-top:2em}.prose h3{font-size:1.12rem;margin-top:1.7em}.prose h4{font-size:1rem}.prose ul,.prose ol{padding-left:1.5em;margin:0 0 1.1em}.prose li{margin-bottom:.3em}.prose a{color:var(--accent-1);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#2383e259;overflow-wrap:anywhere}.prose a:hover{color:#1a73d0;text-decoration-color:#2383e2b3}.prose strong{font-weight:600}.prose blockquote{margin:1.4em 0;padding:.3em 0 .3em 1.1em;border-left:3px solid var(--border-strong);color:var(--text-secondary);font-style:normal}.prose blockquote p:last-child{margin-bottom:0}.prose code{font-family:var(--font-mono);font-size:.86em;background:var(--bg-secondary);border-radius:4px;padding:.15em .38em}.prose pre{background:#1f1e1b;color:#ececea;border-radius:8px;padding:1.1rem 1.3rem;overflow-x:auto;margin:1.4em 0;line-height:1.6;font-size:.85rem}.prose pre code{background:transparent;padding:0;font-size:inherit;color:inherit}.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.92rem}.prose th,.prose td{border:1px solid var(--border-color);padding:.55em .9em;text-align:left}.prose th{background:var(--bg-secondary);font-weight:600}.prose hr{border:none;border-top:1px solid var(--border-color);margin:2em 0}.prose img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin:1.4em 0}.prose .callout{border:1px solid var(--border-color);background:var(--bg-secondary);border-radius:var(--radius-md);padding:1em 1.2em;margin:1.5em 0;font-size:.92rem}@media(max-width:720px){.prose table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}}.sidebar[data-astro-cid-3ef6ksr2]{width:var(--sidebar-w);flex-shrink:0;display:flex;flex-direction:column;gap:1.6rem;padding:1.4rem 1rem 1.2rem;background:var(--bg-secondary);border-right:1px solid var(--border-color);position:sticky;top:0;height:100vh;overflow-y:auto}.brand[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.5rem;padding:.2rem .5rem;font-size:1.05rem;font-weight:700;color:var(--text-primary)}.brand[data-astro-cid-3ef6ksr2]:hover{color:var(--text-primary)}.brand-mark[data-astro-cid-3ef6ksr2]{font-size:1.15rem;line-height:1}.side-nav[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;gap:.15rem}.group[data-astro-cid-3ef6ksr2]{font-size:.72rem;font-weight:600;color:var(--text-muted);padding:.4rem .5rem;margin:.4rem 0 0;text-transform:uppercase;letter-spacing:.02em}.side-item[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.6rem;padding:.4rem .5rem;border-radius:6px;font-size:.92rem;color:var(--text-primary);transition:background .12s}.side-item[data-astro-cid-3ef6ksr2]:hover{background:var(--bg-hover)}.side-item[data-astro-cid-3ef6ksr2].active{background:var(--bg-hover);color:var(--text-primary);font-weight:500}.side-icon[data-astro-cid-3ef6ksr2]{font-size:.95rem;width:1.3rem;text-align:center}.side-foot[data-astro-cid-3ef6ksr2]{margin-top:auto;padding:0 .5rem;font-size:.72rem;color:var(--text-muted)}.mobile-top[data-astro-cid-3ef6ksr2]{display:none}@media(max-width:720px){.sidebar[data-astro-cid-3ef6ksr2]{display:none}.mobile-top[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:1rem;padding:.7rem 1.25rem;background:var(--bg);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:20}.m-brand[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;gap:.35rem;font-size:1rem;font-weight:700;flex-shrink:0}.m-nav[data-astro-cid-3ef6ksr2]{display:flex;gap:.25rem;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.m-nav[data-astro-cid-3ef6ksr2]::-webkit-scrollbar{display:none}.m-link[data-astro-cid-3ef6ksr2]{font-size:.85rem;color:var(--text-secondary);padding:.3rem .55rem;border-radius:6px;white-space:nowrap}.m-link[data-astro-cid-3ef6ksr2].active{color:var(--text-primary);background:var(--bg-secondary);font-weight:500}}.site-footer[data-astro-cid-sz7xmlte]{margin-top:3.5rem;border-top:1px solid var(--border-color);background:var(--bg)}.footer-inner[data-astro-cid-sz7xmlte]{max-width:var(--container);margin:0 auto;padding:2rem 2.5rem 1rem;display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}.footer-brand[data-astro-cid-sz7xmlte]{margin:0;font-size:.92rem;font-weight:600;color:var(--text-primary)}.brand-mark[data-astro-cid-sz7xmlte]{font-size:1rem}.footer-tag[data-astro-cid-sz7xmlte]{font-weight:400;color:var(--text-muted)}.footer-links[data-astro-cid-sz7xmlte]{margin:0;display:flex;gap:1.2rem;font-size:.85rem;color:var(--text-secondary)}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--accent-1)}.footer-bottom[data-astro-cid-sz7xmlte]{max-width:var(--container);margin:0 auto;padding:1rem 2.5rem 1.6rem;border-top:1px solid var(--border-color);font-size:.76rem;color:var(--text-muted)}.footer-bottom[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--accent-1)}@media(max-width:720px){.footer-inner[data-astro-cid-sz7xmlte]{padding:1.5rem 1.25rem .8rem;flex-direction:column;align-items:flex-start;gap:.6rem}.footer-bottom[data-astro-cid-sz7xmlte]{padding:.8rem 1.25rem 1.3rem}}