header.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 30px;background:rgba(6,10,20,.82);border-bottom:1px solid var(--border-cool);backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:38px;height:38px;border-radius:50%;object-fit:cover}.brand strong{display:block;color:var(--moon);font:500 14px/1.3 "Cinzel",serif;letter-spacing:.18em}.brand span{display:block;margin-top:3px;color:var(--text-dim);font-size:10px;letter-spacing:.17em}
.nav-actions{display:flex;align-items:center;gap:9px}.nav-btn{min-height:40px;padding:8px 16px;border:1px solid var(--border-cool);border-radius:9px;background:rgba(140,175,235,.07);color:var(--gold-bright);font:inherit;font-size:12px;letter-spacing:.08em;cursor:pointer}.nav-btn:hover{border-color:var(--moon);background:rgba(140,175,235,.15)}.nav-btn.ghost{background:transparent;color:var(--text-dim)}.nav-btn:disabled{opacity:.42;cursor:not-allowed}
.activity-wrap{position:relative;z-index:1;width:min(1040px,calc(100% - 32px));margin:0 auto;padding:42px 0 90px}.activity-hero{padding:30px 32px}.activity-kicker{color:var(--gold);font:500 11px/1.4 "Cinzel",serif;letter-spacing:.28em}.activity-hero h1{margin:9px 0 8px;color:var(--gold-bright);font-size:28px;font-weight:500;letter-spacing:.08em}.activity-hero p{margin:0;color:var(--text-dim);font-size:13px;line-height:1.8}
.activity-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:20px 0 14px}.activity-tabs{display:flex;gap:8px}.activity-tab{min-height:44px;padding:9px 19px;border:1px solid transparent;border-radius:9px;background:transparent;color:var(--text-dim);font:inherit;font-size:13px;cursor:pointer}.activity-tab[aria-selected="true"]{border-color:var(--border);background:rgba(140,175,235,.1);color:var(--gold-bright)}.activity-count{color:var(--muted);font-size:12px}
.activity-list{display:grid;gap:12px}.activity-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;padding:22px 24px;border:1px solid var(--border-cool);border-radius:15px;background:rgba(16,24,44,.5);color:inherit;text-decoration:none;transition:border-color .2s,transform .2s,background .2s}.activity-item[href]:hover{border-color:var(--moon);background:rgba(140,175,235,.08);transform:translateY(-2px)}.activity-title{margin:7px 0 7px;color:var(--text);font-size:16px;line-height:1.5}.activity-item[href]:hover .activity-title{color:var(--gold-bright)}.activity-preview{display:-webkit-box;overflow:hidden;margin:0;color:var(--text-dim);font-size:13px;line-height:1.7;-webkit-box-orient:vertical;-webkit-line-clamp:2}.activity-meta{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:12px;color:var(--muted);font-size:11px}.activity-badge{display:inline-flex;padding:2px 8px;border:1px solid var(--border-cool);border-radius:999px;color:var(--moon);font-size:10px;letter-spacing:.06em}.activity-badge.is-hidden{border-color:rgba(220,109,104,.35);color:#e9aaa6}.activity-stats{display:grid;align-content:center;gap:5px;min-width:82px;text-align:right;color:var(--muted);font-size:11px}.activity-stats strong{color:var(--moon);font:500 18px/1 "Cinzel",serif}.activity-empty,.activity-error{padding:58px 24px;text-align:center;color:var(--text-dim)}.activity-error{color:#e6a7a7}.activity-pager{display:flex;align-items:center;justify-content:center;gap:13px;margin-top:22px;color:var(--muted);font-size:12px}
@media(max-width:680px){header.nav{display:grid;padding:calc(10px + env(safe-area-inset-top)) 12px 10px}.brand strong{font-size:12px}.brand span{display:none}.nav-actions{display:grid;grid-template-columns:1fr 1fr}.nav-btn{text-align:center}.activity-wrap{width:min(100% - 24px,1040px);padding:20px 0 calc(56px + env(safe-area-inset-bottom))}.activity-hero{padding:23px 18px}.activity-hero h1{font-size:23px}.activity-toolbar{align-items:stretch;flex-direction:column}.activity-tabs{display:grid;grid-template-columns:1fr 1fr}.activity-tab{width:100%}.activity-item{grid-template-columns:1fr;padding:18px 16px}.activity-stats{display:flex;justify-content:flex-start;align-items:center;gap:8px;text-align:left}.activity-stats strong{font-size:14px}.activity-pager{display:grid;grid-template-columns:1fr 1fr;text-align:center}.activity-pager span{grid-column:1/-1;grid-row:1}}
@media(prefers-reduced-motion:reduce){.activity-item{transition:none}.activity-item[href]:hover{transform:none}}