:root{--color-bg: #ffffff;--color-bg-soft: #f6f8fa;--color-text: #1f2328;--color-text-muted: #59636e;--color-primary: #0969da;--color-primary-dark: #0550ae;--color-border: #d1d9e0;--color-accent-bg: #ddf4ff;--max-width: 72rem;--content-width: 44rem;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif}*{box-sizing:border-box}html{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}body{margin:0;font-size:1rem;line-height:1.75;display:flex;flex-direction:column;min-height:100vh}main{flex:1}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.25rem}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg)}.site-header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1.5rem;padding-top:.9rem;padding-bottom:.9rem}.site-brand{font-size:1.15rem;font-weight:700;color:var(--color-text)}.site-brand:hover{text-decoration:none;color:var(--color-primary)}.site-nav{display:flex;flex-wrap:wrap;gap:.25rem 1.1rem;font-size:.95rem}.site-nav a{color:var(--color-text-muted)}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--color-primary);text-decoration:none}.site-footer{border-top:1px solid var(--color-border);background:var(--color-bg-soft);margin-top:4rem;padding:2rem 0;font-size:.875rem;color:var(--color-text-muted)}.site-footer .container{display:flex;flex-direction:column;gap:.75rem}.site-footer nav{display:flex;flex-wrap:wrap;gap:.25rem 1.25rem}.hero{padding:3.5rem 0 3rem;background:linear-gradient(180deg,var(--color-bg-soft),var(--color-bg))}.hero h1{font-size:clamp(1.75rem,4vw,2.5rem);line-height:1.3;margin:0 0 1rem}.hero p{max-width:38rem;color:var(--color-text-muted);font-size:1.1rem;margin:0}.section{padding:2.5rem 0 0}.section-title{font-size:1.4rem;margin:0 0 1.25rem}.section-title a{font-size:.9rem;font-weight:400;margin-left:.75rem}.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(18rem,1fr));gap:1.25rem;list-style:none;margin:0;padding:0}.post-card{border:1px solid var(--color-border);border-radius:.5rem;padding:1.25rem;display:flex;flex-direction:column;gap:.5rem;transition:border-color .15s ease,box-shadow .15s ease}.post-card:hover{border-color:var(--color-primary);box-shadow:0 2px 8px #0969da14}.post-card h3{margin:0;font-size:1.05rem;line-height:1.5}.post-card h3 a{color:var(--color-text)}.post-card h3 a:hover{color:var(--color-primary);text-decoration:none}.post-card p{margin:0;font-size:.9rem;color:var(--color-text-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-meta{font-size:.8rem;color:var(--color-text-muted);display:flex;flex-wrap:wrap;gap:.25rem .75rem}.post-meta .category{color:var(--color-primary);font-weight:500}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(14rem,1fr));gap:1rem;list-style:none;margin:0;padding:0}.category-card{display:block;border:1px solid var(--color-border);border-radius:.5rem;padding:1rem 1.25rem;color:var(--color-text)}.category-card:hover{text-decoration:none;border-color:var(--color-primary)}.category-card strong{display:block;margin-bottom:.25rem}.category-card span{font-size:.85rem;color:var(--color-text-muted)}.article{max-width:var(--content-width);margin:0 auto;padding:2.5rem 1.25rem 0}.article-header h1{font-size:clamp(1.6rem,3.5vw,2.1rem);line-height:1.35;margin:0 0 .75rem}.article-header .post-meta{margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:1px solid var(--color-border)}.article-body{font-size:1.05rem}.article-body h2{font-size:1.45rem;margin:2.5rem 0 1rem;padding-top:.5rem}.article-body h3{font-size:1.15rem;margin:2rem 0 .75rem}.article-body p{margin:1rem 0}.article-body ul,.article-body ol{padding-left:1.5rem}.article-body li{margin:.35rem 0}.article-body blockquote{margin:1.25rem 0;padding:.25rem 1.25rem;border-left:3px solid var(--color-primary);background:var(--color-bg-soft);color:var(--color-text-muted)}.article-body code{background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:.25rem;padding:.1rem .35rem;font-size:.9em}.article-body pre{background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:.5rem;padding:1rem;overflow-x:auto}.article-body pre code{background:none;border:none;padding:0}.article-body table{width:100%;border-collapse:collapse;margin:1.25rem 0;font-size:.95rem}.article-body th,.article-body td{border:1px solid var(--color-border);padding:.5rem .75rem;text-align:left}.article-body th{background:var(--color-bg-soft)}.faq-section{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--color-border)}.faq-section h2{font-size:1.35rem}.faq-section details{border:1px solid var(--color-border);border-radius:.5rem;padding:.75rem 1.1rem;margin:.75rem 0}.faq-section summary{cursor:pointer;font-weight:600}.faq-section details p{margin:.75rem 0 .25rem;color:var(--color-text-muted)}.related-section{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--color-border)}.related-section h2{font-size:1.35rem}.page-header{padding:2.5rem 0 .5rem}.page-header h1{font-size:clamp(1.6rem,3.5vw,2rem);margin:0 0 .5rem}.page-header p{color:var(--color-text-muted);max-width:40rem;margin:0}.prose{max-width:var(--content-width);margin:0 auto;padding:2.5rem 1.25rem 0}.prose h1{font-size:clamp(1.6rem,3.5vw,2rem);line-height:1.35}.prose h2{font-size:1.35rem;margin-top:2.25rem}
