.ark-cards-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:14px;display:grid}.ark-card{background:var(--ds-card);color:var(--ds-ink);box-shadow:var(--ds-notch);flex-direction:column;gap:14px;margin:3px;padding:16px;text-decoration:none;transition:transform .18s cubic-bezier(.34,1.56,.64,1);display:flex}.ark-card:hover{color:var(--ds-ink);transform:translateY(-4px)}.ark-card__meta{color:#6f6f6a;flex-wrap:wrap;gap:4px 12px;font-size:15px;font-weight:800;display:flex}.ark-card__cat{color:var(--ds-accent)}.ark-card__title{text-wrap:pretty;font-size:21px;font-weight:800;line-height:1.12}.ark-card--big .ark-card__title{font-size:clamp(26px,2.4vw,34px)}.ark-card__excerpt{color:#3a3a3e;font-size:18.5px;line-height:1.4}.ark-card__sp{flex:1}.ark-card__more{align-items:center;gap:8px;font-size:17px;font-weight:800;display:flex}.ark-card__arrow{display:flex}.ark-cover{aspect-ratio:16/9;background:#f1f1ec;grid-template-columns:repeat(16,1fr);gap:2px;padding:6px;display:grid}.ark-cover .ark-cell{background:0 0}.ark-cover .ark-cell--on{--d:0s}.ark-card:hover .ark-cover .ark-cell--on,.ark-cover.is-in .ark-cell--on{animation:arkCellCv .38s cubic-bezier(.16, 1, .3, 1) var(--d) both}@keyframes arkCellCv{0%{opacity:0;transform:scale(.35)}to{opacity:1;transform:none}}.ark-list{flex-direction:column;gap:24px;display:flex}.ark-toolbar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.ark-chip{min-height:46px;font-family:var(--ds-base);background:var(--ds-card);color:var(--ds-ink);box-shadow:inset 0 0 0 2px var(--ds-ink);cursor:pointer;border:0;padding:0 16px;font-size:18px;font-weight:800}.ark-chip--on{background:var(--ds-ink);color:#fff;box-shadow:none}.ark-search{background:var(--ds-card);min-height:46px;box-shadow:inset 0 0 0 2px var(--ds-ink);align-items:center;gap:10px;min-width:min(100%,300px);padding:0 14px;display:flex}.ark-search input{min-width:0;font-family:var(--ds-base);color:var(--ds-ink);background:0 0;border:0;outline:none;flex:1;font-size:18px;font-weight:600}.ark-search input::placeholder{color:#6f6f6a}.ark-empty{background:var(--ds-card);padding:28px;font-size:19px;font-weight:700;box-shadow:inset 0 0 0 2px #e2e2dd}.ark-btnrow{flex-wrap:wrap;gap:12px 16px;margin-top:8px;display:flex}.ark-adn-h2{font-size:clamp(32px,4.2vw,62px);line-height:.96}.ark-logo{object-fit:contain;filter:brightness(0);opacity:.78;flex:none;align-self:center;width:auto;max-width:260px;height:30px;margin-right:96px;display:block}.ark-logo-fallback{white-space:nowrap;flex:none;align-self:center;margin-right:96px;font-size:22px;font-weight:800;line-height:1}.ark-adn .ds-marquee{-webkit-mask-image:linear-gradient(90deg,#0000,#000 7% 93%,#0000);mask-image:linear-gradient(90deg,#0000,#000 7% 93%,#0000)}.ark-adn .ds-marquee:hover .ds-marquee__track{animation-play-state:paused}.ark-ahero{background:var(--ds-paper);margin-top:-68px;position:relative}.ark-ahero__inner{flex-direction:column;gap:26px;max-width:1280px;margin:0 auto;padding:calc(68px + clamp(48px,6vw,88px)) clamp(20px,4vw,48px) clamp(40px,5vw,64px);display:flex}.ark-crumb{flex-wrap:wrap;align-items:center;gap:10px;font-size:17px;font-weight:800;display:flex}.ark-crumb__back{color:var(--ds-ink);align-items:center;gap:6px;text-decoration:none;display:flex}.ark-crumb__back:hover{color:var(--ds-accent)}.ark-crumb__rot{display:flex;transform:rotate(180deg)}.ark-crumb__cat{color:var(--ds-accent)}.ark-sq{background:#c9c9c2;flex:none;width:6px;height:6px}.ark-atitle{max-width:1100px;font-family:var(--ds-display);text-wrap:balance;overflow-wrap:break-word;text-transform:uppercase;margin:0;font-size:clamp(34px,4.6vw,68px);font-weight:400;line-height:.96}.ark-achapeau{color:#26262b;text-wrap:pretty;max-width:760px;margin:0;font-size:clamp(20px,1.8vw,24px);font-weight:600;line-height:1.4}.ark-byline{color:#3a3a3e;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:17px;font-weight:700;display:flex}.ark-byline__author{color:var(--ds-ink);align-items:center;gap:10px;font-weight:800;display:flex}.ark-byline__ico{width:auto;height:26px;display:block}.ark-coverbox{background:var(--ds-card);box-shadow:var(--ds-notch);margin:3px;padding:10px}.ark-lecture-sec{background:var(--ds-paper)}.ark-lecture{flex-wrap:wrap;align-items:flex-start;gap:40px 72px;max-width:1280px;margin:0 auto;padding:clamp(24px,3vw,40px) clamp(20px,4vw,48px) clamp(72px,8vw,120px);display:flex}.ark-tocwrap{flex:0 0 250px;align-self:flex-start;position:sticky;top:96px}.ark-abody{flex:560px;min-width:0;max-width:760px}.ark-toc{flex-direction:column;gap:4px;display:flex}.ark-toc__head{color:#6f6f6a;margin-bottom:6px;font-size:16px;font-weight:800}.ark-toc__link{color:var(--ds-ink);background:0 0;align-items:center;gap:10px;padding:8px 10px;font-size:16.5px;font-weight:800;line-height:1.2;text-decoration:none;transition:background .12s,color .12s;display:flex}.ark-toc__link--act{color:#fff;background:var(--ds-ink)}.ark-toc__sq{background:#e2e2dd;flex:none;width:8px;height:8px}.ark-toc__sq--done{background:var(--ds-accent)}.ark-toc__sq--act{background:var(--ds-accent-dk)}.ark-post{flex-direction:column;gap:22px;display:flex}.ark-post p{color:#26262b;text-wrap:pretty;margin:0;font-size:20px;line-height:1.6}.ark-post h2{color:var(--ds-ink);margin:18px 0 0;scroll-margin-top:96px;font-size:clamp(28px,2.6vw,36px);font-weight:800;line-height:1.08}.ark-post h3{color:var(--ds-ink);margin:14px 0 0;scroll-margin-top:96px;font-size:clamp(22px,2vw,27px);font-weight:800;line-height:1.15}.ark-post ul{color:#26262b;flex-direction:column;gap:10px;margin:0;padding:0;font-size:19.5px;line-height:1.35;list-style:none;display:flex}.ark-post li{align-items:baseline;gap:12px;display:flex}.ark-post li:before{content:"";background:var(--ds-ink);flex:none;width:9px;height:9px;transform:translateY(-2px)}.ark-post figure{background:var(--ds-card);box-shadow:var(--ds-notch);margin:3px;padding:10px}.ark-post figure img{width:100%;height:auto;display:block}.ark-post a{color:var(--ds-ink);text-underline-offset:3px;text-decoration:underline}.ark-post a:hover{color:var(--ds-accent)}.ark-post blockquote{align-items:stretch;gap:18px;margin:10px 0;display:flex}.ark-post blockquote:before{content:"";background:repeating-linear-gradient(180deg, var(--ds-accent) 0 10px, transparent 10px 16px);flex:none;width:10px}.ark-post blockquote p{font-family:var(--ds-display);color:var(--ds-ink);font-size:clamp(24px,2.4vw,32px);line-height:1.08}.ark-related-head{flex-direction:column;gap:18px;display:flex}@media (prefers-reduced-motion:reduce){.ark-card{transition:none}.ark-cover .ark-cell--on,.ark-adn .ds-marquee__track{animation:none!important}.ark-toc__link{transition:none}}