@import "https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap";.site-header[data-astro-cid-nen7h5rs]{z-index:40;background:var(--color-bg-elevated);border-bottom:1px solid var(--color-border);position:sticky;top:0}.header-inner[data-astro-cid-nen7h5rs]{justify-content:space-between;align-items:center;padding-top:1rem;padding-bottom:1rem;display:flex}.brand[data-astro-cid-nen7h5rs]{color:var(--color-text);font-family:var(--font-heading);align-items:center;gap:.6rem;font-size:1.3rem;font-weight:700;display:flex}.brand[data-astro-cid-nen7h5rs]:hover{color:var(--color-text);text-decoration:none}.brand-mark[data-astro-cid-nen7h5rs]{background:linear-gradient(180deg, var(--color-blue) 50%, var(--color-yellow) 50%);width:1.6rem;height:1.6rem;box-shadow:var(--shadow-sm);border-radius:50%}.site-nav[data-astro-cid-nen7h5rs]{flex-wrap:wrap;gap:.25rem;display:flex}.nav-link[data-astro-cid-nen7h5rs]{color:var(--color-text-secondary);border-radius:var(--radius-sm);padding:.5rem .8rem;font-size:.92rem;font-weight:500}.nav-link[data-astro-cid-nen7h5rs]:hover{color:var(--color-blue);background:var(--color-blue-tint);text-decoration:none}.nav-link[data-astro-cid-nen7h5rs].active{color:var(--color-blue);background:var(--color-blue-tint);box-shadow:inset 0 -2px 0 var(--color-yellow)}.nav-toggle[data-astro-cid-nen7h5rs]{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:4px;padding:.5rem;display:none}.nav-toggle[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]{background:var(--color-text);border-radius:2px;width:22px;height:2px}@media (width<=900px){.nav-toggle[data-astro-cid-nen7h5rs]{display:flex}.site-nav[data-astro-cid-nen7h5rs]{flex-direction:column;width:100%;padding:.5rem 0 1rem;display:none}.site-nav[data-astro-cid-nen7h5rs].open{display:flex}.header-inner[data-astro-cid-nen7h5rs]{flex-wrap:wrap}}.site-footer[data-astro-cid-jo6i4kqk]{background:var(--color-bg-elevated);border-top:1px solid var(--color-border);margin-top:5rem}.footer-inner[data-astro-cid-jo6i4kqk]{flex-wrap:wrap;justify-content:space-between;gap:2rem;padding-top:2.75rem;padding-bottom:2rem;display:flex}.footer-brand[data-astro-cid-jo6i4kqk]{font-family:var(--font-heading);margin:0 0 .4rem;font-size:1.15rem;font-weight:700}.footer-desc[data-astro-cid-jo6i4kqk]{color:var(--color-text-secondary);margin:0;font-size:.92rem}.footer-links[data-astro-cid-jo6i4kqk]{flex-wrap:wrap;align-items:center;gap:1.5rem;display:flex}.footer-links[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:var(--color-text-secondary);font-size:.92rem;font-weight:500}.footer-links[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]:hover{color:var(--color-blue)}.footer-bottom[data-astro-cid-jo6i4kqk]{border-top:1px solid var(--color-border);color:var(--color-text-muted);padding:1.1rem 1.5rem;font-size:.82rem}:root{--color-bg:#f2f3f5;--color-bg-elevated:#fff;--color-bg-subtle:#e8e9ec;--color-text:#1b1d1f;--color-text-secondary:#565c64;--color-text-muted:#888e96;--color-border:#dde0e3;--color-border-strong:#c8cbcf;--color-blue:#0057b7;--color-blue-dark:#00408a;--color-blue-tint:#eaf1fb;--color-yellow:gold;--color-yellow-dark:#cfae00;--font-heading:"Noto Serif SC", "Songti SC", "STSong", serif;--font-body:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--content-width:46rem;--wide-width:72rem;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-sm:0 1px 2px #1416190f;--shadow-md:0 4px 16px #14161914}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:17px;line-height:1.85}img{max-width:100%;height:auto;display:block}a{color:var(--color-blue);text-decoration:none;transition:color .15s}a:hover{color:var(--color-blue-dark);text-decoration:underline;text-decoration-color:var(--color-yellow);text-decoration-thickness:2px}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:.01em;color:var(--color-text);margin:2em 0 .7em;font-weight:600;line-height:1.4}h1{font-size:2.1rem}h2{font-size:1.55rem}h3{font-size:1.28rem}h4{font-size:1.1rem}p{letter-spacing:.01em;margin:0 0 1.3em}.container{max-width:var(--wide-width);margin:0 auto;padding:0 1.5rem}.prose{max-width:var(--content-width);margin:0 auto}.prose img{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin:1.75em auto}.prose em{color:var(--color-text-secondary);font-size:.92em;font-style:italic}.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.4em}.prose li{margin-bottom:.5em}.prose blockquote{border-left:3px solid var(--color-yellow);background:var(--color-bg-subtle);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--color-text-secondary);margin:1.5em 0;padding:.2em 1.2em}.prose hr{border:none;border-top:1px solid var(--color-border);margin:2.5em 0}.prose strong{color:var(--color-text);font-weight:700}.prose a{border-bottom:1px solid var(--color-blue-tint)}.flag-bar{background:linear-gradient(90deg, var(--color-blue) 0%, var(--color-blue) 50%, var(--color-yellow) 50%, var(--color-yellow) 100%);width:100%;height:4px}.tag{background:var(--color-blue-tint);color:var(--color-blue);border:1px solid #0057b726;border-radius:999px;align-items:center;gap:.4em;padding:.3em .85em;font-size:.8rem;font-weight:600;display:inline-flex}.btn{border-radius:var(--radius-md);background:var(--color-blue);color:#fff;cursor:pointer;box-shadow:var(--shadow-sm);border:none;align-items:center;gap:.5em;padding:.7em 1.5em;font-weight:600;transition:background .15s,transform .15s,box-shadow .15s;display:inline-flex}.btn:hover{background:var(--color-blue-dark);color:#fff;box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-1px)}.btn-accent{background:var(--color-yellow);color:#1b1d1f}.btn-accent:hover{background:var(--color-yellow-dark);color:#1b1d1f}::selection{background:var(--color-yellow);color:#1b1d1f}@media (width<=640px){body{font-size:16px}h1{font-size:1.7rem}h2{font-size:1.35rem}.container{padding:0 1.1rem}}