:root{--color-bg: #faf8f2;--color-washi: #faf8f2;--color-washi-deep: #f0ead8;--color-text: #1a1a1a;--color-text-muted: #666;--color-accent: #1b3d6e;--color-accent-hover: #da251d;--color-border: #e0d8cc;--color-code-bg: #f3ede0;--color-vn-red: #da251d;--color-vn-yellow: #ffcd00;--color-jp-indigo: #1b3d6e;--max-width: 720px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Hiragino Sans,Noto Sans JP,sans-serif;font-size:16px;line-height:1.8;color:var(--color-text);background-color:var(--color-bg)}body{min-height:100vh;display:flex;flex-direction:column}main{flex:1;width:100%;max-width:var(--max-width);margin:0 auto;padding:2rem 1rem}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover);text-decoration:underline}h1,h2,h3,h4{font-family:"Noto Serif JP",Hiragino Mincho ProN,Yu Mincho,Georgia,serif;line-height:1.4;margin-top:1.5em;margin-bottom:.5em}h1{font-size:1.8rem}h2{font-size:1.4rem;padding-left:.6em;border-left:4px solid var(--color-jp-indigo)}h3{font-size:1.2rem;padding-left:.5em;border-left:3px solid var(--color-vn-red)}p{margin-bottom:1em}img{max-width:100%;height:auto}code{background-color:var(--color-code-bg);padding:.2em .4em;border-radius:3px;font-size:.9em}pre{background-color:var(--color-code-bg);padding:1em;border-radius:6px;overflow-x:auto;margin-bottom:1em}pre code{background:none;padding:0}table{width:100%;border-collapse:collapse;margin:1.25em 0;font-size:.95em;display:block;overflow-x:auto}th,td{border:1px solid var(--color-border);padding:.5em .75em;text-align:left;vertical-align:top}thead th{background-color:var(--color-washi-deep);font-weight:600}tbody tr:nth-child(2n) td{background-color:#f0ead859}blockquote{border-left:3px solid var(--color-jp-indigo);color:var(--color-text-muted);margin-bottom:1em;background-color:#1b3d6e0a;padding:.75em 1em;border-radius:0 4px 4px 0}ul,ol{padding-left:1.5em;margin-bottom:1em}hr{border:none;border-top:1px solid var(--color-border);margin:2rem 0}.site-header{position:relative;border-bottom:1px solid var(--color-border);padding:1rem}.site-header:before{content:"";display:block;position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-jp-indigo) 0% 50%,var(--color-vn-red) 50% 100%)}.site-header nav{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem}.site-header .site-title{font-size:1.2rem;font-weight:700;color:var(--color-text);display:flex;align-items:center;gap:.5rem}.site-header .site-title:hover{text-decoration:none}.site-header .nav-links{display:flex;gap:1.5rem;list-style:none;padding:0;margin:0}.site-footer{border-top:4px solid transparent;border-image:linear-gradient(90deg,var(--color-jp-indigo) 0% 50%,var(--color-vn-red) 50% 100%) 1;padding:1.5rem 1rem;text-align:center;color:var(--color-text-muted);font-size:.85rem}.post-card{padding:1.5rem 0;border-bottom:1px solid var(--color-washi-deep)}.post-card:last-child{border-bottom:none}.post-card h2{margin-top:0;margin-bottom:.25em;font-size:1.3rem;border-left:none;padding-left:0}.post-card .post-meta{color:var(--color-text-muted);font-size:.85rem;margin-bottom:.5em}.post-card .post-description{color:var(--color-text-muted);margin-bottom:0}.tag-list{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:0}.tag-list a{display:inline-block;padding:.2em .6em;background-color:var(--color-washi-deep);border-radius:4px;font-size:.85rem;color:var(--color-jp-indigo);border:1px solid transparent}.tag-list a:hover{border-color:var(--color-vn-red);color:var(--color-vn-red);text-decoration:none}.pagination{display:flex;justify-content:center;gap:1rem;padding:2rem 0}.pagination a,.pagination span{padding:.5em 1em;border:1px solid var(--color-border);border-radius:4px}.pagination span{color:var(--color-text-muted)}.post-header{margin-bottom:2rem}.post-header h1{margin-top:0}.post-header .post-meta{color:var(--color-text-muted);font-size:.9rem}.lang-badge{display:inline-block;padding:.1em .4em;font-size:.75rem;font-weight:700;border-radius:3px;background-color:var(--color-vn-red);color:var(--color-vn-yellow);vertical-align:middle}