:root{--clr-primary:#48bdf0;--clr-primary-hover:#3aaddf;--clr-text:#212529;--clr-text-body:#333;--clr-text-sub:#777;--clr-text-nav:#444;--clr-heading:#222;--clr-muted:#999;--clr-light:#bbb;--clr-border:#e0e0e0;--clr-border-light:#eee;--clr-bg:#f8f9fa;--clr-surface:#fff;--clr-surface-alt:#fafafa;--clr-code-bg:#f5f5f5;--clr-code-inline-bg:#f0f0f0;--radius:4px;--radius-md:6px;--shadow:0 2px 8px rgba(0,0,0,0.08);--shadow-hover:0 4px 16px rgba(0,0,0,0.1)}[data-theme="dark"]{--clr-text:#d4d4d4;--clr-text-body:#ccc;--clr-text-sub:#999;--clr-text-nav:#bbb;--clr-heading:#e8e8e8;--clr-muted:#888;--clr-light:#666;--clr-border:#333;--clr-border-light:#2a2a2a;--clr-bg:#181818;--clr-surface:#232323;--clr-surface-alt:#2a2a2a;--clr-code-bg:#2a2a2a;--clr-code-inline-bg:#333;--shadow:0 2px 8px rgba(0,0,0,0.4);--shadow-hover:0 4px 16px rgba(0,0,0,0.5)}*,*::before,*::after{box-sizing:border-box}body{margin:0;font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","BIZ UDPGothic","Yu 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nav{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;gap:0;background:var(--clr-surface);border-bottom:1px solid var(--clr-border);box-shadow:0 8px 24px rgba(0,0,0,0.12);z-index:100;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity 0.2s,visibility 0.2s,transform 0.2s;pointer-events:none}header nav a{font-size:15px;color:var(--clr-text-nav);padding:14px 24px;border-bottom:1px solid var(--clr-border-light);border-left:2px solid transparent;transition:color 0.15s,border-color 0.15s,padding-left 0.15s}header nav a:last-child{border-bottom:none}header nav a:hover{color:var(--clr-primary);border-left-color:var(--clr-primary);padding-left:30px;text-decoration:none}.nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;background:none;border:none;cursor:pointer;padding:6px;position:absolute;right:12px;top:50%;transform:translateY(-50%);border-radius:var(--radius);transition:background 0.15s}.nav-toggle:hover{background:rgba(255,255,255,0.15)}.nav-toggle span{display:block;width:100%;height:2px;background:#fff;border-radius:2px;transition:transform 0.25s,opacity 0.25s}header.nav-open nav{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}header.nav-open .nav-toggle span:nth-child(2){opacity:0}header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-backdrop{position:fixed;inset:0;background:rgba(0,0,0,0.35);z-index:99;opacity:0;visibility:hidden;transition:opacity 0.2s,visibility 0.2s}.nav-backdrop.is-visible{opacity:1;visibility:visible}footer{background:var(--clr-surface);border-top:1px solid var(--clr-border);padding:20px 0}footer .container{font-size:13px;color:var(--clr-muted);text-align:center}.category-nav{background:var(--clr-surface);border-bottom:1px solid var(--clr-border)}.category-nav .container{display:flex;justify-content:center;overflow-x:auto;scrollbar-width:none;padding-top:0;padding-bottom:0;gap:0}.category-nav .container::-webkit-scrollbar{display:none}.category-nav-item{flex-shrink:0;font-size:13px;font-weight:500;color:var(--clr-muted);padding:12px 20px;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;transition:color 0.15s,border-color 0.15s}.category-nav-item:hover{color:var(--clr-text);text-decoration:none}.category-nav-item.is-active{color:var(--clr-primary);border-bottom-color:var(--clr-primary);font-weight:600}.sidebar{display:none}.sidebar-section{background:var(--clr-surface);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}.sidebar-title{font-size:13px;font-weight:600;letter-spacing:0.06em;color:var(--clr-muted);text-transform:uppercase;margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--clr-border-light)}.profile-card{text-align:center}.profile-avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;margin-bottom:12px;background:var(--clr-border)}.profile-name{font-size:15px;font-weight:700;margin:0 0 8px;color:var(--clr-text-body)}.profile-bio{font-size:13px;color:var(--clr-text-sub);line-height:1.7;margin:0;text-align:left}.recent-posts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.recent-post-link{display:flex;gap:10px;align-items:flex-start;text-decoration:none}.recent-post-thumb{flex-shrink:0;width:56px;height:56px;border-radius:4px;overflow:hidden;background:var(--clr-border-light)}.recent-post-thumb--blank{background:var(--clr-bg)}.recent-post-thumb img{width:100%;height:100%;object-fit:cover}.recent-post-body{flex:1;min-width:0}.recent-post-title{font-size:13px;color:var(--clr-text-nav);line-height:1.5;margin:0 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.recent-post-link:hover .recent-post-title{color:var(--clr-primary)}.recent-post-date{font-size:11px;color:var(--clr-muted)}.tag-cloud a,.post-tags a,.post-card-tags a{font-size:12px;color:var(--clr-muted);border:1px solid var(--clr-border);padding:4px 10px;border-radius:10px;background:var(--clr-surface-alt)}.tag-cloud a:hover,.post-tags a:hover,.post-card-tags a:hover{color:var(--clr-text-body);border-color:var(--clr-light);text-decoration:none}.tag-cloud{display:flex;flex-wrap:wrap;gap:6px}.post-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:40px;padding-top:20px;border-top:1px solid var(--clr-border-light)}.post-card-tags{display:flex;flex-wrap:wrap;gap:5px}.tags-index{display:flex;flex-wrap:wrap;gap:10px}.tag-index-item{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--clr-border);padding:7px 16px;border-radius:20px;background:var(--clr-surface-alt);color:var(--clr-muted);font-size:14px}.tag-index-item:hover{background:var(--clr-code-bg);border-color:var(--clr-light);text-decoration:none;color:var(--clr-heading)}.tag-index-count{font-size:11px;color:var(--clr-light);background:var(--clr-border-light);padding:1px 7px;border-radius:8px}.page-header{margin-bottom:32px;padding-bottom:20px;border-bottom:1px solid var(--clr-border-light)}.page-title,.post-title{font-size:20px;font-weight:700;line-height:1.4;color:var(--clr-heading);margin:0}.post-title{margin-bottom:12px}.post-header{margin-bottom:32px}.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;font-size:13px;color:var(--clr-muted)}.post-date{display:inline-flex;align-items:center;gap:4px}.post-date-icon{width:14px;height:14px;flex-shrink:0;color:var(--clr-light)}.post-date-label{font-size:11px;color:var(--clr-light)}.post-categories{display:flex;gap:6px}.post-categories a{color:#fff;background:var(--clr-primary);padding:1px 8px;border-radius:10px;font-size:12px}.post-categories a:hover{text-decoration:none;background:var(--clr-primary-hover)}.post-disclosure{font-size:.8rem;font-weight:700;color:var(--clr-text);background:var(--clr-bg);border:1px solid var(--clr-border);border-left:4px solid var(--clr-primary);padding:.5rem .75rem;margin:1.25rem 0;border-radius:0 4px 4px 0}.prose{font-size:15px;color:var(--clr-text-body);word-break:break-word;overflow-wrap:break-word}.prose h2{font-size:19px;font-weight:700;margin:40px 0 16px;padding-left:10px;border-left:3px solid var(--clr-primary)}.prose h3{font-size:16px;font-weight:600;margin:32px 0 12px}.prose p{margin:0 0 20px}.prose ul,.prose ol{margin:0 0 20px;padding-left:24px}.prose li{margin-bottom:6px}.prose pre{background:var(--clr-code-bg);border-radius:var(--radius);padding:16px;overflow-x:auto;font-size:14px;line-height:1.6;margin:0 0 20px}.prose code{font-family:"SFMono-Regular",Consolas,monospace;font-size:0.875em;background:var(--clr-code-inline-bg);padding:2px 5px;border-radius:3px}.prose pre code{background:none;padding:0}.prose blockquote{margin:0 0 20px;padding:2px 20px;border-left:3px solid var(--clr-border);color:var(--clr-text-sub)}.prose hr{border:none;border-top:1px solid var(--clr-border);margin:40px 0}.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 20px;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}.prose th,.prose td{padding:8px 12px;border:1px solid var(--clr-border);text-align:left;white-space:nowrap}.prose th{background:var(--clr-code-bg);font-weight:600}.prose img{max-width:100%;height:auto;display:block;border-radius:var(--radius);margin:0 auto 20px}.toc{background:var(--clr-surface-alt);border:1px solid var(--clr-border-light);border-radius:8px;margin:0 0 2rem;font-size:14px}.toc-title{font-weight:600;font-size:13px;padding:0.7rem 1rem;color:var(--clr-text-sub);cursor:pointer;display:flex;align-items:center;justify-content:space-between;list-style:none;user-select:none;margin:0;letter-spacing:0.06em}.toc-title::-webkit-details-marker{display:none}.toc-title::marker{display:none}.toc-title::after{content:'';width:6px;height:6px;border-right:1.5px solid var(--clr-muted);border-bottom:1.5px solid var(--clr-muted);transform:rotate(45deg) translateY(-2px);transition:transform 0.2s;flex-shrink:0}.toc[open] .toc-title::after{transform:rotate(-135deg) translateY(-2px)}.toc ul{margin:0;padding:0.5rem 1rem 0.8rem;list-style:none;border-top:1px solid var(--clr-border-light)}.toc li{margin-bottom:4px;line-height:1.5}.toc li:last-child{margin-bottom:0}.toc-h3{margin-left:0.75rem;padding-left:0.75rem;border-left:2px solid var(--clr-border);font-size:13px}.toc-h3 > a{color:var(--clr-text-sub)}.toc a{color:var(--clr-text);text-decoration:none;transition:color 0.15s}.toc a:hover{color:var(--clr-primary)}.callout{border:1.5px 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6px;color:var(--clr-text-body)}.author-card-bio{font-size:13px;color:var(--clr-text-sub);line-height:1.7;margin:0}.post-cards{display:flex;flex-direction:column}.post-card{display:flex;flex-direction:column;padding:24px 0;border-bottom:1px solid var(--clr-border-light)}.post-card:first-child{padding-top:0}.post-card:last-child{border-bottom:none;padding-bottom:0}.post-card-image{width:100%;height:180px;display:block;overflow:hidden;border-radius:var(--radius);background:var(--clr-border);margin-bottom:16px}.post-card-image img{width:100%;height:100%;object-fit:cover;display:block;transition:opacity 0.2s}.post-card-image:hover img{opacity:0.85}.post-card-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.post-card-title{font-size:17px;font-weight:700;line-height:1.5;margin:0}.post-card-title a{color:var(--clr-heading)}.post-card-title a:hover{color:var(--clr-primary);text-decoration:none}.post-card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--clr-muted)}.no-posts{color:var(--clr-muted);font-size:14px}.post-card-desc{font-size:14px;color:var(--clr-text-sub);margin:6px 0 0;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post-grid{display:grid;grid-template-columns:1fr;gap:20px}.post-grid-card{border:1px solid var(--clr-border-light);border-radius:var(--radius-md);overflow:hidden;background:var(--clr-surface);display:flex;flex-direction:column;transition:box-shadow 0.2s}.post-grid-card:hover{box-shadow:var(--shadow-hover);text-decoration:none}.post-grid-card-image{width:100%;aspect-ratio:16 / 9;overflow:hidden;background:linear-gradient(135deg,#e8f6fc 0%,#d0edf9 100%);flex-shrink:0}.post-grid-card-image img{width:100%;height:100%;object-fit:cover;display:block;transition:opacity 0.2s}.post-grid-card:hover .post-grid-card-image img{opacity:0.9}.post-grid-card-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}.post-grid-card-title{font-size:15px;font-weight:700;color:var(--clr-heading);line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-grid-card:hover .post-grid-card-title{color:var(--clr-primary)}.post-grid-card-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--clr-light);margin-top:auto}.post-grid-card-category{background:var(--clr-primary);color:#fff;padding:1px 8px;border-radius:10px;font-size:11px}.related-posts{margin-top:40px;padding-top:24px;border-top:1px solid var(--clr-border-light)}.related-posts-title{font-size:14px;font-weight:600;letter-spacing:0.06em;color:var(--clr-muted);text-transform:uppercase;margin:0 0 16px}.related-posts-grid{display:grid;grid-template-columns:1fr;gap:16px}.related-post-card{display:flex;flex-direction:column;border:1px solid var(--clr-border-light);border-radius:var(--radius-md);overflow:hidden;background:var(--clr-surface);transition:box-shadow 0.2s}.related-post-card:hover{box-shadow:var(--shadow-hover);text-decoration:none}.related-post-card-image{width:100%;aspect-ratio:16 / 9;overflow:hidden;background:var(--clr-border)}.related-post-card-image img{width:100%;height:100%;object-fit:cover;display:block}.related-post-card-image--blank{background:linear-gradient(135deg,#e8f6fc 0%,#d0edf9 100%)}.related-post-card-body{padding:12px;display:flex;flex-direction:column;gap:6px;flex:1}.related-post-card-title{font-size:13px;font-weight:600;color:var(--clr-heading);line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.related-post-card:hover .related-post-card-title{color:var(--clr-primary)}.related-post-card-date{font-size:11px;color:var(--clr-light);margin-top:auto}.pagination{display:flex;align-items:center;justify-content:center;gap:4px;margin-top:40px;padding-top:24px;border-top:1px solid var(--clr-border-light)}.pagination-pages{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}.pagination-page,.pagination-arrow{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:6px;font-size:14px;font-weight:500;color:var(--clr-text);border:1px solid var(--clr-border);transition:background 0.15s,color 0.15s,border-color 0.15s}.pagination-page:hover,.pagination-arrow:hover{background:var(--clr-bg);border-color:var(--clr-primary);color:var(--clr-primary)}.pagination-page--current{background:var(--clr-primary);border-color:var(--clr-primary);color:#fff;cursor:default}.pagination-arrow--disabled{color:var(--clr-light);border-color:var(--clr-border-light);cursor:default}.pagination-ellipsis{display:flex;align-items:center;justify-content:center;width:36px;height:36px;font-size:14px;color:var(--clr-muted)}.not-found{padding:60px 0;text-align:center}.not-found-code{font-size:80px;font-weight:700;color:var(--clr-primary);line-height:1;margin:0 0 16px}.not-found-title{font-size:22px;font-weight:700;color:var(--clr-heading);margin:0 0 16px}.not-found-message{color:var(--clr-text-sub);margin:0 0 32px}.not-found-home{display:inline-block;padding:10px 24px;background:var(--clr-primary);color:#fff;border-radius:var(--radius);font-weight:600}.not-found-home:hover{background:var(--clr-primary-hover);text-decoration:none}.theme-toggle{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:none;border:none;cursor:pointer;padding:4px;color:#fff;position:absolute;right:92px;top:50%;transform:translateY(-50%);border-radius:var(--radius);transition:background 0.15s}.theme-toggle:hover{background:rgba(255,255,255,0.15)}.icon-sun{display:none}[data-theme="dark"] .icon-moon{display:none}[data-theme="dark"] .icon-sun{display:block}.search-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:none;cursor:pointer;padding:6px;color:#fff;position:absolute;right:52px;top:50%;transform:translateY(-50%);border-radius:var(--radius);transition:background 0.15s}.search-toggle-label{display:none}.search-toggle:hover{background:rgba(255,255,255,0.15)}.post-nav{display:grid;grid-template-columns:1fr;gap:12px;margin:32px 0 0;padding-top:24px;border-top:1px solid var(--clr-border-light)}.post-nav-item{display:flex;flex-direction:column;gap:8px;padding:16px;background:var(--clr-surface-alt);border:1px solid var(--clr-border-light);border-radius:var(--radius-md);text-decoration:none;color:var(--clr-text);transition:border-color 0.15s,box-shadow 0.15s,background 0.15s;min-width:0}.post-nav-item:hover{border-color:var(--clr-primary);box-shadow:0 2px 12px 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