:root{--color-bg:#f8f8f7;--color-surface:#ffffff;--color-border:#e2e2df;--color-border-strong:#c8c8c4;--color-text:#1a1a18;--color-text-secondary:#5a5a55;--color-text-muted:#8a8a85;--color-accent:#1a4fd6;--color-accent-hover:#1340b5;--color-accent-bg:#eef2ff;--color-tag-bg:#ebebea;--color-tag-text:#3a3a35;--color-mark:#1a4fd6;--font-sans:'IBM Plex Sans', system-ui, sans-serif;--font-serif:'IBM Plex Serif', Georgia, serif;--font-mono:'IBM Plex Mono', 'Courier New', monospace;--radius:3px;--radius-md:6px;--max-width:1100px;--max-prose:680px;--header-h:64px;--transition:150ms ease}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover)}img{max-width:100%;display:block}main{flex:1}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.site-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:rgba(248,248,247,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.site-logo{display:flex;align-items:center;gap:10px;color:var(--color-text);font-family:var(--font-sans);font-weight:600;font-size:.85rem;line-height:1.3;letter-spacing:-.01em;text-decoration:none}.site-logo 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var(--color-border)}.section-title{font-family:var(--font-sans);font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-muted)}.section-link{font-size:.82rem;color:var(--color-accent);font-weight:500}.section-link:hover{color:var(--color-accent-hover)}.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1px;background:var(--color-border);border:1px solid var(--color-border)}.post-card{background:var(--color-surface);padding:28px;transition:background var(--transition)}.post-card:hover{background:var(--color-accent-bg)}.post-card-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}.post-type{font-family:var(--font-mono);font-size:.65rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent);background:var(--color-accent-bg);padding:2px 6px;border-radius:var(--radius)}.post-date{font-family:var(--font-mono);font-size:.72rem;color:var(--color-text-muted)}.post-card-title{font-family:var(--font-serif);font-size:1.05rem;font-weight:600;line-height:1.35;margin-bottom:10px;letter-spacing:-.01em}.post-card-title a{color:var(--color-text);text-decoration:none}.post-card-title a:hover{color:var(--color-accent)}.post-card-summary{font-size:.85rem;color:var(--color-text-secondary);line-height:1.55;margin-bottom:16px}.post-card-tags{display:flex;flex-wrap:wrap;gap:6px}.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px}.topic-card{padding:28px 24px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface)}.topic-icon{font-family:var(--font-mono);font-size:1.4rem;font-weight:500;color:var(--color-accent);margin-bottom:14px;line-height:1}.topic-card h3{font-family:var(--font-sans);font-size:.9rem;font-weight:600;margin-bottom:8px;color:var(--color-text)}.topic-card p{font-size:.82rem;color:var(--color-text-secondary);line-height:1.55}.tag{display:inline-block;font-family:var(--font-mono);font-size:.65rem;font-weight:500;letter-spacing:.04em;padding:2px 7px;background:var(--color-tag-bg);color:var(--color-tag-text);border-radius:var(--radius);text-transform:lowercase}.page-container{padding:56px 0}.page-header{margin-bottom:40px;padding-bottom:24px;border-bottom:1px solid var(--color-border)}.page-title{font-family:var(--font-serif);font-size:2rem;font-weight:600;letter-spacing:-.02em;margin-bottom:8px}.page-description{font-size:1rem;color:var(--color-text-secondary)}.post-list{display:flex;flex-direction:column}.post-row{display:grid;grid-template-columns:200px 1fr 32px;gap:24px;align-items:start;padding:24px 0;border-bottom:1px solid var(--color-border);transition:background 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var(--color-border)}.post-single-meta{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.read-time{font-family:var(--font-mono);font-size:.72rem;color:var(--color-text-muted)}.post-single-title{font-family:var(--font-serif);font-size:clamp(1.6rem,3vw,2.2rem);font-weight:600;line-height:1.2;letter-spacing:-.02em;margin-bottom:16px}.post-single-description{font-size:1.05rem;color:var(--color-text-secondary);line-height:1.6;font-style:italic;margin-bottom:16px}.post-single-tags{display:flex;flex-wrap:wrap;gap:6px}.post-body{font-family:var(--font-sans);font-size:1rem;line-height:1.75;color:var(--color-text)}.post-body h2{font-family:var(--font-sans);font-size:1.2rem;font-weight:600;margin:40px 0 14px;letter-spacing:-.01em;padding-bottom:8px;border-bottom:1px solid var(--color-border)}.post-body h3{font-size:1rem;font-weight:600;margin:28px 0 10px}.post-body p{margin-bottom:20px}.post-body ul,.post-body ol{margin:0 0 20px 24px}.post-body 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var(--color-border)}.post-body tr:nth-child(even) td{background:var(--color-bg)}.post-single-footer{margin-top:48px;padding-top:32px;border-top:1px solid var(--color-border)}.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px}.post-nav-link{display:flex;flex-direction:column;gap:4px;padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition),background var(--transition);text-decoration:none}.post-nav-link:hover{border-color:var(--color-accent);background:var(--color-accent-bg)}.post-nav-next{text-align:right}.nav-dir{font-family:var(--font-mono);font-size:.68rem;color:var(--color-text-muted);letter-spacing:.06em;text-transform:uppercase}.nav-title{font-size:.88rem;font-weight:500;color:var(--color-text);line-height:1.35}.site-footer{border-top:1px solid var(--color-border);background:var(--color-surface);padding:32px 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span{background:var(--color-accent);border-color:var(--color-accent);color:#fff}@media(max-width:768px){.post-row{grid-template-columns:1fr;gap:8px}.post-row-meta{flex-direction:row;flex-wrap:wrap}.post-row-arrow{display:none}.post-grid{grid-template-columns:1fr}.topics-grid{grid-template-columns:1fr 1fr}.post-nav{grid-template-columns:1fr}.hero{padding:48px 0 44px}.site-nav .nav-link{padding:6px 8px}}@media(max-width:480px){.topics-grid{grid-template-columns:1fr}.hero-actions{flex-direction:column;align-items:flex-start}}