.hub{min-height:100dvh;max-width:880px;margin:0 auto;padding:clamp(40px,9vh,96px) 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.hub-header{margin-bottom:clamp(32px,6vh,56px)}.brand{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.04em;margin-bottom:18px}.brand b{color:var(--text);font-weight:700}.brand-mark{width:24px;height:24px;border-radius:6px;object-fit:cover;box-shadow:0 0 14px #6ea8fe40}.hero{font-size:clamp(34px,8vw,56px);font-weight:800;letter-spacing:-.03em;line-height:1.05;background:linear-gradient(180deg,#fff,#aeb6c6);-webkit-background-clip:text;background-clip:text;color:transparent}.hub-sub{color:var(--muted);margin-top:12px;font-size:15px;letter-spacing:.02em}.game-grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;width:100%}.game-card{position:relative;overflow:hidden;width:300px;max-width:100%;display:flex;flex-direction:column;gap:14px;text-align:left;background:linear-gradient(180deg,var(--surface),#13161d);border:1px solid var(--border);border-radius:18px;padding:18px;transition:transform .2s,border-color .2s,box-shadow .2s}.game-card:after{content:"";position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,rgba(110,168,254,.55),transparent);opacity:0;transition:opacity .2s}.game-card:hover{transform:translateY(-5px);border-color:var(--accent-dim);box-shadow:0 18px 44px #00000073}.game-card:hover:after{opacity:1}.game-thumb{height:132px;border-radius:12px;display:grid;place-items:center;background:radial-gradient(120% 130% at 50% 0%,#232a3c,#11141b);border:1px solid var(--border)}.mini2048{width:92px;height:92px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:5px}.mini2048 i{border-radius:4px;background:#ffffff0a}.mini2048 i[data-t=lo]{background:#2c3f63}.mini2048 i[data-t=mid]{background:#4684df}.mini2048 i[data-t=hi]{background:var(--accent);box-shadow:0 0 10px #6ea8fe99}.game-meta{display:flex;flex-direction:column;gap:5px}.game-name{font-size:19px;font-weight:700}.game-desc{color:var(--muted);font-size:13px;line-height:1.5}.game-go{color:var(--accent);font-size:13px;font-weight:600;opacity:.9;transition:transform .2s}.game-card:hover .game-go{transform:translate(3px)}.hub-footer{margin-top:clamp(36px,7vh,64px);color:var(--muted);font-size:12px}