.vdf-ah{padding:2rem 0 0}.vdf-ah__shell{max-width:var(--container-max-width);padding-inline:var(--container-padding-x);margin-inline:auto;width:100%;box-sizing:border-box}.vdf-ah__text{max-width:52rem}.vdf-ah__title{margin:.9rem 0 0;font-family:var(--font-display-md-family);font-size:clamp(1.95rem,4.2vw,var(--font-display-md-size));font-weight:600;line-height:1.07;letter-spacing:var(--font-display-md-letter-spacing);color:var(--fg-on-default);text-wrap:balance}.vdf-ah__lead{margin:1.2rem 0 0;font-family:var(--font-body-lg-family);font-size:clamp(1.08rem,1.5vw,1.24rem);line-height:1.6;color:var(--fg-secondary)}.vdf-ah__meta{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem 1.1rem;margin-top:1.6rem;padding-top:1.1rem;border-top:1px solid var(--border-color-default);font-family:var(--font-label-md-family);font-size:.9rem;color:var(--fg-secondary)}.vdf-ah__meta>* + *::before{content:'';display:inline-block;width:4px;height:4px;margin-right:1.1rem;border-radius:50%;background:var(--brand-accent);vertical-align:middle;transform:translateY(-1px)}.vdf-ah__author{display:inline-flex;align-items:center;gap:.7rem;--vdf-avatar-size:36px}.vdf-ah__author strong{color:var(--fg-on-default);font-weight:600}.vdf-ah__media{max-width:72rem;margin:2.4rem auto 0;padding-inline:var(--container-padding-x);box-sizing:border-box}.vdf-ah__media img{display:block;width:100%;height:auto;max-height:36rem;object-fit:cover;border-radius:var(--border-radius-lg);background:var(--bg-surface-high)}@media (max-width:640px){.vdf-ah__media{padding-inline:0;margin-top:1.6rem}.vdf-ah__media img{border-radius:0}}.vdf-ab{padding:2.8rem 0 1rem}.vdf-ab__shell{display:grid;grid-template-columns:minmax(0,44rem) 17.5rem;justify-content:space-between;gap:4rem;align-items:start;max-width:var(--container-max-width);padding-inline:var(--container-padding-x);margin-inline:auto;width:100%;box-sizing:border-box}.vdf-ab__shell:not(:has(.vdf-ab__side)){grid-template-columns:minmax(0,44rem);justify-content:center}.vdf-ab__side{position:sticky;top:1.5rem;max-height:calc(100vh - 3rem);overflow-y:auto}.vdf-toc{padding:1.1rem 1.1rem .8rem;border:1px solid var(--border-color-default);border-radius:var(--border-radius-lg);background:var(--bg-surface-low)}.vdf-toc__head{margin-bottom:.7rem;font-family:var(--font-label-sm-family);font-size:var(--font-label-sm-size);font-weight:600;letter-spacing:var(--font-label-sm-letter-spacing);text-transform:uppercase;color:var(--brand-secondary);list-style:none;cursor:default}.vdf-toc__head::-webkit-details-marker{display:none}.vdf-toc .toc-list,.vdf-toc .toc-sublist{margin:0;padding:0;list-style:none}.vdf-toc .toc-item a{display:block;padding:.45rem 0 .45rem .9rem;border-left:2px solid var(--border-color-default);color:var(--fg-secondary);font-family:var(--font-label-lg-family);font-size:.88rem;font-weight:500;line-height:1.35;text-decoration:none;transition:color .15s ease,border-color .15s ease}.vdf-toc .toc-item a:hover{color:var(--fg-on-default);border-left-color:var(--border-color-strong)}.vdf-toc .toc-item a.is-active{color:var(--brand-primary);font-weight:600;border-left-color:var(--brand-primary)}.vdf-toc .toc-sublist .toc-item a{padding-left:1.7rem;font-size:.83rem}.vdf-toc a:focus-visible{outline:2px solid var(--brand-secondary);outline-offset:2px}@media (max-width:1020px){.vdf-ab__shell{grid-template-columns:minmax(0,44rem);justify-content:center;gap:0}.vdf-ab__side{position:static;grid-row:1;max-height:none;margin-bottom:2rem}.vdf-toc{padding:0}.vdf-toc__head{margin:0;padding:1rem 1.1rem;cursor:pointer;display:flex;justify-content:space-between}.vdf-toc__head::after{content:'+';font-size:1.1rem;line-height:1;color:var(--brand-primary)}.vdf-toc[open] .vdf-toc__head::after{content:'\2212'}.vdf-toc__nav{padding:0 1.1rem 1rem}}@media (prefers-reduced-motion:reduce){.vdf-toc .toc-item a{transition:none}}.vdf-au{padding:1rem 0 4rem}.vdf-au__shell{max-width:var(--container-max-width);padding-inline:var(--container-padding-x);margin-inline:auto;width:100%;box-sizing:border-box}.vdf-au__card{display:flex;gap:1.2rem;align-items:flex-start;max-width:44rem;padding:1.4rem 1.5rem;border:1px solid var(--border-color-default);border-radius:var(--border-radius-lg);background:var(--bg-surface-low);--vdf-avatar-size:64px}.vdf-au__name{margin:.35rem 0 0;font-family:var(--font-title-lg-family);font-size:1.15rem;font-weight:600;color:var(--fg-on-default)}.vdf-au__bio{margin:.4rem 0 0;font-family:var(--font-body-md-family);font-size:.97rem;line-height:1.6;color:var(--fg-secondary)}@media (max-width:1020px){.vdf-au__card{margin-inline:auto}}.vdf-rel{padding:4.5rem 0;background:var(--bg-subtle);border-top:1px solid var(--border-color-default)}.vdf-rel__shell{max-width:var(--container-max-width);padding-inline:var(--container-padding-x);margin-inline:auto;width:100%;box-sizing:border-box}.vdf-rel__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.6rem}@media (max-width:960px){.vdf-rel__grid{grid-template-columns:repeat(2,minmax(0,1fr))}.vdf-rel__grid>:nth-child(3){display:none}}@media (max-width:580px){.vdf-rel{padding:3rem 0}.vdf-rel__grid{grid-template-columns:1fr}.vdf-rel__grid>:nth-child(3){display:block}}