:root{color-scheme:light;--bg: #fafaf9;--surface: #ffffff;--text: #1c1917;--muted: #57534e;--border: #e7e5e4;--accent: #0c4a6e;--accent-muted: #0369a1;--radius: 6px;--font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-serif: "Songti SC", "Noto Serif SC", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;--measure: 42rem;--space: 1.25rem}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-sans);font-size:1.0625rem;line-height:1.65;color:var(--text);background:var(--bg)}a{color:var(--accent-muted);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--accent)}img{max-width:100%;height:auto;vertical-align:middle}.container{width:min(100% - 2 * var(--space),72rem);margin-inline:auto;padding-block:var(--space)}.prose{font-family:var(--font-serif);max-width:var(--measure);word-break:break-word;overflow-wrap:anywhere}.prose h1,.prose h2,.prose h3{font-family:var(--font-sans);font-weight:600;line-height:1.25;color:var(--text)}.prose h1{font-size:clamp(1.75rem,2.5vw,2.25rem);margin-top:0}.prose h2{font-size:1.35rem;margin-top:2rem}.prose h3{font-size:1.15rem;margin-top:1.5rem}.prose p{margin:0 0 1.15em}.prose ul,.prose ol{padding-left:1.25rem}.prose blockquote{margin:1.5rem 0;padding-left:1rem;border-left:3px solid var(--border);color:var(--muted)}.prose figure{margin:1.75rem 0}.prose figcaption{font-family:var(--font-sans);font-size:.875rem;color:var(--muted);margin-top:.5rem}.site-header[data-astro-cid-3ef6ksr2]{border-bottom:1px solid var(--border);background:var(--surface)}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding-block:.95rem}.brand[data-astro-cid-3ef6ksr2]{display:flex;flex-wrap:wrap;align-items:center;gap:.55rem .95rem;font-weight:650;letter-spacing:-.02em;color:var(--text);text-decoration:none;transition:transform .2s ease,filter .25s ease}.brand-mark-img[data-astro-cid-3ef6ksr2]{display:block;height:clamp(5.25rem,10.2vw,7.05rem);width:auto;max-width:min(30rem,96vw);object-fit:contain}.brand-sub[data-astro-cid-3ef6ksr2]{font-size:clamp(.98rem,2vw,1.18rem);font-weight:560;color:#4a4744;letter-spacing:.04em;line-height:1.25;max-width:min(22rem,100%)}.brand[data-astro-cid-3ef6ksr2]:hover{transform:translateY(-1px);filter:brightness(1.03)}.brand[data-astro-cid-3ef6ksr2]:hover .brand-mark-img[data-astro-cid-3ef6ksr2]{opacity:.94}.brand[data-astro-cid-3ef6ksr2]:hover .brand-sub[data-astro-cid-3ef6ksr2]{color:var(--accent-muted)}.nav[data-astro-cid-3ef6ksr2]{display:flex;flex-wrap:wrap;gap:1rem 1.25rem;font-size:.95rem}.nav-link[data-astro-cid-3ef6ksr2]{color:var(--muted);text-decoration:none}.nav-link[data-astro-cid-3ef6ksr2]:hover,.nav-link[data-astro-cid-3ef6ksr2].is-active{color:var(--text);text-decoration:underline;text-underline-offset:4px}@media(prefers-reduced-motion:reduce){.brand[data-astro-cid-3ef6ksr2]{transition:none}.brand[data-astro-cid-3ef6ksr2]:hover{transform:none;filter:none}}.site-footer[data-astro-cid-sz7xmlte]{margin-top:3rem;border-top:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:.9rem}.footer-inner[data-astro-cid-sz7xmlte]{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.75rem;padding-block:1.5rem}.footer-copy[data-astro-cid-sz7xmlte]{margin:0;font-size:1rem;letter-spacing:.02em;color:#57534e}.footer-brand-cn[data-astro-cid-sz7xmlte]{font-weight:700;font-size:1.08em;letter-spacing:.06em;color:var(--accent)}.footer-brand-dot[data-astro-cid-sz7xmlte]{color:#a8a29e;font-weight:400}.footer-brand-en[data-astro-cid-sz7xmlte]{font-weight:600;font-size:1.02em;letter-spacing:.035em;color:#44403c}.footer-note[data-astro-cid-sz7xmlte]{margin:0}.footer-note[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--muted)}.footer-note[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--accent)}.shell[data-astro-cid-7itcaece]{min-height:100vh;display:flex;flex-direction:column}.main[data-astro-cid-7itcaece]{flex:1;padding-block:2rem 1rem}