:root{--bg: #f5f6f8;--surface-soft: #f7f8fa;--line: #e2e8f0;--line-strong: #d5dde7;--text: #1f2937;--text-muted: #5f6b7a;--text-subtle: #7b8794;--accent: #215a74;--accent-soft: #eef4f7;--code-bg: #f3f5f7;--quote-bg: #f8fafb;--max-width: 760px;--header-width: 980px}*,*::before,*::after{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg, #f8f9fb 0%, var(--bg) 100%);color:var(--text);font-family:"Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;line-height:1.8;text-rendering:optimizeLegibility}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}code,pre{font-family:"Consolas", "SFMono-Regular", "Menlo", monospace}.site-shell{width:min(calc(100% - 2rem), var(--header-width));margin:0 auto}.site-header{padding:2.5rem 0 1.25rem}.site-header-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}.site-branding{min-width:0}.site-eyebrow{margin:0 0 0.45rem;color:var(--text-subtle);font-size:0.72rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase}.site-title{margin:0;font-size:clamp(1.7rem, 2.4vw, 2.15rem);line-height:1.2;letter-spacing:-0.02em}.site-title a{color:inherit}.site-title a:hover{text-decoration:none}.site-description{margin:0.65rem 0 0;color:var(--text-muted);font-size:0.98rem}.site-nav{display:flex;flex-wrap:wrap;gap:0.5rem}.site-nav-link{display:inline-flex;align-items:center;min-height:2.5rem;padding:0.5rem 0.9rem;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,0.78);color:var(--text-muted);font-size:0.94rem}.site-nav-link:hover{background:var(--surface-soft);color:var(--text);text-decoration:none}.site-main{padding:0 0 4rem}.main-content{width:min(100%, var(--max-width))}.home-intro{margin:1.1rem 0 2rem}.home-title{margin:0;font-size:clamp(1.6rem, 2.5vw, 2rem);line-height:1.25;letter-spacing:-0.02em}.home-copy{margin:0.75rem 0 0;color:var(--text-muted);font-size:1rem}.post-feed{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.post-feed-item{border-bottom:1px solid var(--line)}.post-card-link{display:block;padding:1.4rem 0.25rem 1.5rem;color:inherit;transition:background-color 0.18s ease}.post-card-link:hover{background:rgba(255,255,255,0.6);text-decoration:none}.post-card-meta{margin:0 0 0.55rem;color:var(--text-subtle);font-size:0.88rem}.post-card-title{margin:0;font-size:clamp(1.2rem, 2.2vw, 1.45rem);line-height:1.4;letter-spacing:-0.01em}.post-card-excerpt{margin:0.75rem 0 0;color:var(--text-muted);font-size:0.98rem;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post-card-tags,.post-tags{display:flex;flex-wrap:wrap;gap:0.45rem;margin:0.85rem 0 0}.tag-chip{display:inline-flex;align-items:center;max-width:100%;padding:0.22rem 0.65rem;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:0.78rem;line-height:1.4;white-space:nowrap}.home-footer{display:flex;flex-wrap:wrap;gap:0.75rem 1rem;margin-top:2rem;padding-top:1.25rem;border-top:1px solid var(--line);color:var(--text-subtle);font-size:0.92rem}.home-footer a{color:inherit}.post-article{padding-top:0.75rem}.post-back{margin-bottom:1.25rem}.back-link{color:var(--text-muted);font-size:0.94rem}.back-link:hover{color:var(--text)}.post-header{margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:1px solid var(--line)}.post-title{margin:0;font-size:clamp(1.9rem, 4vw, 2.7rem);line-height:1.25;letter-spacing:-0.025em}.post-meta{margin:0.9rem 0 0;color:var(--text-muted);font-size:0.94rem}.post-body{font-size:1rem}.post-body>*:first-child{margin-top:0}.post-body h1,.post-body h2,.post-body h3,.post-body h4,.post-body h5,.post-body h6{margin-top:2.4rem;margin-bottom:0.9rem;line-height:1.35;letter-spacing:-0.02em}.post-body h1{font-size:2rem}.post-body h2{padding-bottom:0.45rem;border-bottom:1px solid var(--line);font-size:1.5rem}.post-body h3{font-size:1.2rem}.post-body p,.post-body ul,.post-body ol,.post-body blockquote,.post-body pre,.post-body table{margin-top:1rem;margin-bottom:1rem}.post-body ul,.post-body ol{padding-left:1.4rem}.post-body li+li{margin-top:0.45rem}.post-body blockquote{padding:0.9rem 1rem;border-left:3px solid var(--line-strong);background:var(--quote-bg);color:var(--text-muted)}.post-body pre{overflow-x:auto;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:10px;background:var(--code-bg);line-height:1.65}.post-body :not(pre)>code{padding:0.16rem 0.4rem;border-radius:6px;background:var(--code-bg);color:#374151;font-size:0.92em}.post-body hr{border:0;border-top:1px solid var(--line);margin:2rem 0}.post-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse}.post-body th,.post-body td{padding:0.7rem 0.85rem;border:1px solid var(--line);text-align:left}.post-body th{background:var(--surface-soft)}@media (max-width: 720px){body{line-height:1.75}.site-shell{width:min(calc(100% - 1.25rem), var(--header-width))}.site-header{padding-top:1.5rem}.site-header-inner{align-items:flex-start;flex-direction:column;gap:1rem}.site-nav-link{min-height:2.35rem}.post-card-link{padding:1.15rem 0}.post-title{font-size:2rem}.post-body{font-size:0.98rem}.post-body h2{font-size:1.35rem}.post-body pre{padding:0.9rem;border-radius:8px}}