:root,body.theme-dark{--bg: #0c1320;--surface: #131b2e;--surface-2: #182238;--border: #1f2a44;--text: #e2e8f0;--text-muted: #94a3b8;--text-tertiary: #64748b;--brand: #5691c8;--brand-soft: #1f4e79;--brand-strong: #7eb0e0;--code-bg: #0a0f1c;--header-bg: rgba(12, 19, 32, .85);--shadow: 0 4px 12px rgba(0, 0, 0, .4)}body.theme-light{--bg: #fbfbfe;--surface: #ffffff;--surface-2: #f1f5f9;--border: #e2e8f0;--text: #0f172a;--text-muted: #475569;--text-tertiary: #94a3b8;--brand: #1f4e79;--brand-soft: #dbeafe;--brand-strong: #2563eb;--code-bg: #f5f7fa;--header-bg: rgba(255, 255, 255, .85);--shadow: 0 4px 12px rgba(0, 0, 0, .06)}:root{--font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Source Han Serif", "Songti SC", "STSong", serif;--font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Menlo", "Consolas", "Liberation Mono", monospace;--radius-sm: 4px;--radius: 6px;--radius-lg: 12px;--container: 720px;--container-wide: 1080px;--t-fast: .15s ease-out}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;transition:background .2s var(--t-fast),color .2s var(--t-fast)}img,svg,video,canvas,audio,iframe,embed,object{display:block;max-width:100%;height:auto}a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color var(--t-fast)}a:hover,a:focus{color:var(--brand-strong)}button{background:none;border:none;padding:0;cursor:pointer;font:inherit;color:inherit}::selection{background:var(--brand);color:#fff}:focus-visible{outline:2px solid var(--brand-strong);outline-offset:2px;border-radius:var(--radius-sm)}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 1.25rem}@media (max-width: 640px){.container{padding:0 1rem}body{font-size:16px}}.site-header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:50;background:var(--header-bg);backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);border-bottom:1px solid var(--border)}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:1.5rem;padding-top:.875rem;padding-bottom:.875rem}.brand[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;gap:.625rem;font-family:var(--font-serif);font-weight:700;font-size:1.0625rem;color:var(--text);letter-spacing:-.02em;white-space:nowrap;text-decoration:none}.brand[data-astro-cid-3ef6ksr2]:hover{color:var(--brand-strong)}.brand-mark[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--brand);color:#fff;border-radius:var(--radius-sm);font-family:var(--font-serif);font-size:.9375rem}.site-nav[data-astro-cid-3ef6ksr2]{flex:1;min-width:0}.nav-list[data-astro-cid-3ef6ksr2]{display:flex;gap:1.5rem;list-style:none;padding:0;margin:0;align-items:center}.nav-list[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2]{margin:0}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--text-muted);font-size:.9375rem;padding:.25rem 0;display:inline-block;transition:color var(--t-fast);text-decoration:none}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--text)}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2].is-current{color:var(--text);border-bottom:2px solid var(--brand)}.theme-toggle[data-astro-cid-3ef6ksr2]{background:transparent;border:1px solid var(--border);color:var(--text-muted);width:36px;height:36px;border-radius:var(--radius);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--t-fast)}.theme-toggle[data-astro-cid-3ef6ksr2]:hover{color:var(--text);border-color:var(--brand)}.theme-icon[data-astro-cid-3ef6ksr2]{font-size:14px;line-height:1}.theme-icon[data-astro-cid-3ef6ksr2]:before{content:"☾"}body.theme-light .theme-icon[data-astro-cid-3ef6ksr2]:before{content:"☀"}body.theme-dark .theme-icon[data-astro-cid-3ef6ksr2]:before{content:"☾"}@media (max-width: 640px){.header-inner[data-astro-cid-3ef6ksr2],.nav-list[data-astro-cid-3ef6ksr2]{gap:1rem;flex-wrap:wrap}.site-nav[data-astro-cid-3ef6ksr2]{order:3;flex-basis:100%}}.site-footer[data-astro-cid-sz7xmlte]{border-top:1px solid var(--border);padding:2rem 0 3rem;color:var(--text-tertiary);font-size:.875rem}.site-footer[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--text-muted)}.site-footer[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--brand-strong)}.copyright[data-astro-cid-sz7xmlte]{margin:0}.copyright[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{margin:0 .25rem}.footer-inner[data-astro-cid-sz7xmlte]{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.social-links[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{display:flex;gap:.5rem;list-style:none;padding:0;margin:0;align-items:center}.social-links[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin:0}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;color:var(--text-muted);border-radius:var(--radius);transition:color var(--t-fast),background var(--t-fast);text-decoration:none}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--brand-strong);background:var(--surface-2)}.site-main[data-astro-cid-37fxchfa]{min-height:70vh;padding:1rem 0 4rem}.skip-link[data-astro-cid-37fxchfa]{position:absolute;top:-40px;left:0;background:var(--brand);color:#fff;padding:8px 16px;z-index:100;text-decoration:none;border-radius:0 0 var(--radius) 0}.skip-link[data-astro-cid-37fxchfa]:focus{top:0}