.layout-grid[data-astro-cid-j7pv25f6]{width:min(1320px,calc(100% - 2rem));max-width:min(1320px,calc(100% - 2rem));margin:0 auto;padding:2rem 0 3rem;display:grid;grid-template-columns:minmax(220px,280px) minmax(0,1fr) minmax(220px,280px);gap:1.5rem;align-items:start}.rail-inner[data-astro-cid-j7pv25f6]{position:sticky;top:1.25rem}.rail-list[data-astro-cid-j7pv25f6]{list-style:none;padding:0;margin:0;display:grid;gap:1rem}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6]{display:block;text-decoration:none;color:rgb(var(--gray-dark));background:#fff;border:1px solid rgb(var(--gray-light));border-radius:10px;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6]:hover{transform:translateY(-2px);box-shadow:var(--box-shadow)}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] span[data-astro-cid-j7pv25f6]{display:block;padding:.65rem .75rem .75rem;font-size:1.08rem;line-height:1.45}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6] img{display:block;width:100%;height:132px;object-fit:cover}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6].contain-image img{object-fit:contain;background:#fff}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6].inline-card{display:grid;grid-template-columns:150px minmax(0,1fr);align-items:center;gap:.35rem;padding:.35rem}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6].inline-card img{width:150px;height:210px}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6].inline-card span[data-astro-cid-j7pv25f6]{padding:.65rem .75rem}.post-feed[data-astro-cid-j7pv25f6] h1[data-astro-cid-j7pv25f6]{margin-bottom:1rem}.post-grid[data-astro-cid-j7pv25f6]{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem}.math-demo[data-astro-cid-j7pv25f6]{margin:0 0 1rem;padding:.75rem;border-radius:10px;border:1px solid rgb(var(--gray-light));background:#fff}.post-card[data-astro-cid-j7pv25f6]{background:#fff;border:1px solid rgb(var(--gray-light));border-radius:12px;overflow:hidden;height:100%}.post-card-link[data-astro-cid-j7pv25f6]{display:block;text-decoration:none;color:inherit;height:100%;transition:border-color .2s ease,box-shadow .2s ease}.post-card-link[data-astro-cid-j7pv25f6]:link,.post-card-link[data-astro-cid-j7pv25f6]:visited,.post-card-link[data-astro-cid-j7pv25f6]:hover,.post-card-link[data-astro-cid-j7pv25f6]:active{color:inherit;text-decoration:none}.post-card-link[data-astro-cid-j7pv25f6]:hover{border-color:rgb(var(--gray));box-shadow:var(--box-shadow)}.post-card-image[data-astro-cid-j7pv25f6] img{display:block;width:100%;height:112px;object-fit:cover}.post-card-body[data-astro-cid-j7pv25f6]{padding:.65rem .75rem .75rem}.post-card-body[data-astro-cid-j7pv25f6] h3[data-astro-cid-j7pv25f6]{margin:0 0 .35rem;font-size:1.02rem;line-height:1.25}.post-card-body[data-astro-cid-j7pv25f6] p[data-astro-cid-j7pv25f6]{margin:0;font-size:.9rem;line-height:1.35;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.post-date[data-astro-cid-j7pv25f6]{margin:0 0 .45rem;color:rgb(var(--gray));font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}@media(max-width:1080px){.post-grid[data-astro-cid-j7pv25f6]{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:980px){.post-grid[data-astro-cid-j7pv25f6]{grid-template-columns:1fr}}@media(max-width:1120px){.layout-grid[data-astro-cid-j7pv25f6]{grid-template-columns:1fr;width:min(920px,calc(100% - 1.25rem));max-width:min(920px,calc(100% - 1.25rem));padding-top:1rem}.rail-inner[data-astro-cid-j7pv25f6]{position:static}}@media(max-width:840px){.rail-list[data-astro-cid-j7pv25f6]{gap:.35rem}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6]{display:flex;align-items:center;justify-content:space-between;padding:.85rem .95rem;border-radius:8px}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6] img[data-astro-cid-j7pv25f6]{display:none}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6].inline-card{display:flex}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] span[data-astro-cid-j7pv25f6]{padding:0;font-size:1.05rem;font-weight:600}.rail-list[data-astro-cid-j7pv25f6] li[data-astro-cid-j7pv25f6] a[data-astro-cid-j7pv25f6]:after{content:"->";color:rgb(var(--gray))}}