:root{--bg:#ffffff;--bg-secondary:#f5f5f5;--text:#1a1a1a;--text-secondary:#555;--accent:#0563bb;--accent-hover:#044a8a;--border:#e0e0e0;--tag-bg:#e8f0fe;--tag-text:#0563bb;--code-bg:#f5f5f5}[data-theme=dark]{--bg:#1a1a1a;--bg-secondary:#252525;--text:#e0e0e0;--text-secondary:#999;--accent:#8CFF00;--accent-hover:#a3ff33;--border:#333;--tag-bg:#1a2e00;--tag-text:#8CFF00;--code-bg:#252525}*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,helvetica neue,Arial,sans-serif;line-height:1.7;color:var(--text);background:var(--bg);transition:background .3s,color .3s}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.site-header{border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:100}.site-header nav{max-width:800px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.nav-home{font-weight:700;font-size:1.1rem;color:var(--text)}.nav-links{display:flex;align-items:center;gap:1.25rem}.lang-switch{font-size:.85rem;padding:.2rem .6rem;border:1px solid var(--border);border-radius:4px}.theme-toggle{background:0 0;border:1px solid var(--border);border-radius:4px;cursor:pointer;padding:.2rem .5rem;font-size:1rem;line-height:1}[data-theme=light] .theme-icon-dark{display:none}[data-theme=dark] .theme-icon-light{display:none}.site-main{max-width:800px;margin:0 auto;padding:2rem 1.5rem}.post-list{display:flex;flex-direction:column;gap:2rem;margin-top:1.5rem}.post-card{padding:1.5rem;background:var(--bg-secondary);border-radius:8px;border:1px solid var(--border)}.post-card h2{margin-bottom:.25rem}.post-card h2 a{color:var(--text)}.post-card h2 a:hover{color:var(--accent)}.post-card time{font-size:.85rem;color:var(--text-secondary)}.post-card p{margin-top:.5rem;color:var(--text-secondary)}.read-more{display:inline-block;margin-top:.75rem;font-size:.9rem;font-weight:500}.post-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.5rem}.tag{font-size:.75rem;padding:.15rem .5rem;background:var(--tag-bg);color:var(--tag-text);border-radius:3px}.post-header{margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.post-header h1{font-size:2rem;line-height:1.3;margin-bottom:.5rem}.post-header time{color:var(--text-secondary);font-size:.9rem}.post-content h2{margin:2rem 0 .75rem;font-size:1.4rem}.post-content h3{margin:1.5rem 0 .5rem;font-size:1.15rem}.post-content p{margin-bottom:1rem}.post-content ul,.post-content ol{margin:.5rem 0 1rem 1.5rem}.post-content code{font-family:sf mono,fira code,monospace;font-size:.88em;background:var(--code-bg);padding:.15rem .4rem;border-radius:3px}.post-content pre{background:var(--code-bg);border:1px solid var(--border);border-radius:6px;padding:1rem;overflow-x:auto;margin:1rem 0}.post-content pre code{background:0 0;padding:0}.post-content img{max-width:100%;height:auto;border-radius:6px;margin:1rem 0}.post-content blockquote{border-left:3px solid var(--accent);padding-left:1rem;margin:1rem 0;color:var(--text-secondary);font-style:italic}.post-nav{display:flex;justify-content:space-between;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);font-size:.9rem}.post-nav-next{margin-left:auto}.site-footer{max-width:800px;margin:0 auto;padding:1.5rem;border-top:1px solid var(--border);color:var(--text-secondary);font-size:.85rem}@media(max-width:600px){.site-header nav{flex-wrap:wrap;gap:.75rem}.nav-links{gap:.75rem}.post-header h1{font-size:1.5rem}.post-nav{flex-direction:column;gap:.75rem}}