.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.card-link:hover {
  color: inherit;
}

.activity-card {
  min-height: 14rem;
  overflow: hidden;
  padding: 0;
}

.activity-card > div {
  height: 100%;
}

.site-page .activity-card {
  position: relative;
  overflow: hidden;
  min-height: 18rem;
}

/* 活动入口：编辑式导航卡，移除 Emoji 原型感 */
.site-page.activity-page .activity-hub-grid {
  align-items: stretch;
}

.site-page.activity-page .activity-gateway {
  position: relative;
  display: flex;
  min-height: 25rem;
  overflow: hidden;
  border-color: rgba(96, 165, 250, 0.2);
  background: #ffffff;
  color: var(--site-ink);
  text-decoration: none;
}

.site-page.activity-page .activity-gateway--community {
  --page-accent: #6d4de0;
  --page-accent-soft: rgba(109, 77, 224, 0.1);
  border-color: rgba(109, 77, 224, 0.18);
  background: #f8f6ff;
}

.site-page.activity-page .activity-gateway::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 7.5rem;
  height: 3px;
  background: var(--page-accent);
}

.site-page.activity-page .activity-gateway__body {
  position: relative;
  z-index: 2;
  display: flex;
  width: 100%;
  max-width: 72%;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
}

.site-page.activity-page .activity-gateway__index {
  margin-bottom: auto;
  color: var(--page-accent);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.16em;
}

.site-page.activity-page .activity-gateway h2 {
  margin: 5.25rem 0 0.85rem;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  letter-spacing: -0.025em;
}

.site-page.activity-page .activity-gateway p {
  max-width: 28rem;
  color: var(--site-muted);
  font-size: 0.96rem;
  line-height: 1.8;
}

.site-page.activity-page .activity-gateway .more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 2rem;
  color: var(--page-accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-page.activity-page .activity-gateway .more-link::after {
  content: '→';
  transition: transform 200ms ease;
}

.site-page.activity-page .activity-gateway__visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 48%;
  height: 100%;
  opacity: 0.7;
  pointer-events: none;
}

.site-page.activity-page .activity-gateway__visual::before {
  content: '';
  position: absolute;
  inset: 12% -34% 12% 8%;
  border: 1px solid var(--page-accent-soft);
  border-radius: 50%;
}

.site-page.activity-page .activity-gateway__visual span {
  position: absolute;
  border: 1px solid var(--page-accent-soft);
  background: var(--page-accent-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.site-page.activity-page .activity-gateway--competition .activity-gateway__visual span {
  width: 4.25rem;
  aspect-ratio: 1;
  border-radius: 13px;
  transform: rotate(18deg);
}

.site-page.activity-page .activity-gateway--competition .activity-gateway__visual span:nth-child(1) {
  top: 18%;
  right: 18%;
}

.site-page.activity-page .activity-gateway--competition .activity-gateway__visual span:nth-child(2) {
  top: 44%;
  right: 40%;
  width: 2.8rem;
}

.site-page.activity-page .activity-gateway--competition .activity-gateway__visual span:nth-child(3) {
  right: 8%;
  bottom: 14%;
  width: 6rem;
}

.site-page.activity-page .activity-gateway--community .activity-gateway__visual span {
  border-radius: 50%;
}

.site-page.activity-page .activity-gateway--community .activity-gateway__visual span:nth-child(1) {
  top: 17%;
  right: 15%;
  width: 7rem;
  aspect-ratio: 1;
}

.site-page.activity-page .activity-gateway--community .activity-gateway__visual span:nth-child(2) {
  top: 48%;
  right: 42%;
  width: 2.25rem;
  aspect-ratio: 1;
}

.site-page.activity-page .activity-gateway--community .activity-gateway__visual span:nth-child(3) {
  right: 8%;
  bottom: 11%;
  width: 3.75rem;
  aspect-ratio: 1;
}

@media (hover: hover) {
  .site-page.activity-page .activity-gateway:hover .more-link::after {
    transform: translateX(4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-page.activity-page .activity-gateway .more-link::after {
    transition: none !important;
    transform: none !important;
  }
}