.activity-hub{width:100%;max-width:100%;min-height:68vh;margin:0 auto 42px;padding:0 0 64px}.activity-context{margin:18px 0;background:var(--surf,#fff);border:1px solid var(--brd,#e2e8f0);border-radius:16px;padding:18px;color:var(--txt-2,#475569);line-height:1.7;box-shadow:0 4px 18px #0f172a0a}.activity-context h2{margin:0 0 8px;color:var(--txt,#0f172a);font-size:1.05rem;font-weight:800}.activity-context p{margin:0 0 10px;font-size:.9rem}.activity-context-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:12px}.activity-context-card{background:var(--surf2,#f8fafc);border:1px solid var(--brd,#e2e8f0);border-radius:12px;padding:12px;min-width:0}.activity-context-card strong{display:block;color:var(--txt,#0f172a);font-size:.86rem;margin-bottom:4px}.activity-context-card span{display:block;font-size:.8rem;line-height:1.55;color:var(--txt-2,#64748b)}.activity-toolbar{margin:18px 0;display:flex;gap:12px;align-items:center}.activity-search{width:280px;min-height:42px;border:1px solid var(--brd,#e2e8f0);background:var(--surf,#fff);color:var(--txt,#0f172a);border-radius:14px;padding:0 15px;font:inherit;flex-shrink:0}.activity-count{color:var(--txt-2,#64748b);font-size:.9rem;font-weight:700;white-space:nowrap}.activity-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.activity-card{display:flex;flex-direction:column;gap:13px;min-height:205px;background:var(--surf,#fff);border:1px solid var(--brd,#e2e8f0);border-radius:18px;padding:15px;text-decoration:none;color:inherit;box-shadow:0 4px 18px #0f172a0f;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.activity-card:hover{transform:translateY(-3px);box-shadow:0 18px 42px #0f172a1f;border-color:#2563eb57}.activity-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:15px;background:#2563eb1a;color:var(--c-primary,#2563eb);font-size:1.02rem}.activity-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.activity-section{display:inline-flex;align-items:center;min-height:25px;max-width:145px;border-radius:999px;padding:0 9px;background:#2563eb14;color:var(--c-primary,#2563eb);font-size:.66rem;line-height:1.15;font-weight:800;text-align:right}.activity-card h2{margin:0;color:var(--txt,#0f172a);font-size:.98rem;line-height:1.25;letter-spacing:0}.activity-card p{margin:0;color:var(--txt-2,#64748b);font-size:.84rem;line-height:1.5}.activity-open{margin-top:auto;min-height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-weight:800;font-size:.84rem;text-decoration:none;background:var(--c-primary,#2563eb);color:#fff}.activity-empty{background:var(--surf,#fff);border:1px solid var(--brd,#e2e8f0);border-radius:18px;padding:34px;color:var(--txt-2,#64748b);text-align:center}[data-theme=dark] .activity-card,[data-theme=dark] .activity-search,[data-theme=dark] .activity-empty,[data-theme=dark] .activity-context{background:var(--surf,#111f3a);border-color:var(--brd,rgba(255,255,255,.08))}[data-theme=dark] .activity-context-card{background:var(--surf2,#172542);border-color:var(--brd,rgba(255,255,255,.08))}[data-theme=dark] .activity-icon{background:#60a5fa24;color:#93c5fd}[data-theme=dark] .activity-section{background:#60a5fa21;color:#bfdbfe}@media(max-width:1080px){.activity-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:820px){.activity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.activity-toolbar{flex-direction:column;align-items:stretch}.activity-search{width:100%}.activity-context-grid,.activity-grid{grid-template-columns:1fr}}