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.lead{font-size:17px;line-height:1.6;color:var(--ink-2);margin:16px 0 0;max-width:62ch}.shelf{display:flex;flex-wrap:wrap;gap:40px 24px;align-items:flex-start;padding-bottom:28px;border-bottom:10px solid #e7ebf3;box-shadow:0 12px 18px -14px #0f1e454d;margin-bottom:56px}.shelf-b{width:168px;color:inherit;text-decoration:none!important;display:grid;gap:6px}.shelf-b .book{transition:transform .3s ease;transform-origin:bottom left}.shelf-b:hover .book,.shelf-b:focus-visible .book{transform:rotate(-3deg) translateY(-6px)}.shelf-t{font:700 15px/1.25 var(--f-display);margin-top:10px;letter-spacing:-.01em}.howto{background:var(--ink);color:#fff;border-radius:22px;padding:30px 32px 34px;margin-top:56px}.howto h2.display{font-size:24px;margin-bottom:20px}.howto ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;counter-reset:s}.howto li{counter-increment:s;display:grid;gap:6px;padding-top:50px;position:relative}.howto 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center;padding-bottom:5px;font:700 15px var(--f-display);color:#fff;background:var(--h)}.objs{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:18px}.obj{display:grid;grid-template-rows:auto 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--card)}.obj-img{aspect-ratio:16 / 10;background:radial-gradient(120% 90% at 50% 100%,#e6ecf6,#f6f8fc);display:grid;place-items:center;border-bottom:3px solid var(--h)}.obj-img{position:relative;overflow:hidden}.obj-img img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain}.obj-img.page img{top:7%;right:0;bottom:7%;left:0;height:86%;filter:drop-shadow(0 6px 12px rgba(15,30,69,.28))}.obj-body{display:flex;flex-direction:column;gap:10px;padding:16px 18px 18px}.obj-t{margin:0;font:700 17px/1.25 var(--f-display);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}.obj-t+.latin,.obj-body 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