/* 加载状态 */
.loading-card {
  height: 290px;
  background: linear-gradient(110deg, #ececec 8%, #f5f5f5 18%, #ececec 33%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

/* 错误状态 */
.api-error {
  text-align: center;
  padding: 60px 40px;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  max-width: 400px;
  margin: 40px auto;
}
.api-error b {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.api-error span {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.5;
}
.api-error button {
  border: none;
  background: var(--blue);
  color: white;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 10px;
  box-shadow: 0 8px 18px rgba(40, 120, 237, .22);
  transition: all 0.3s ease;
}
.api-error button:hover {
  box-shadow: 0 12px 25px rgba(40, 120, 237, .3);
  transform: translateY(-2px);
}

/* 详情页加载 */
.detail-loading {
  min-height: 75vh;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}
.detail-loading div {
  width: 40px;
  height: 40px;
  border: 3px solid var(--line);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* 动画 */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  to { background-position: -200% 0; }
}

/* 响应式 */
@media (max-width: 600px) {
  .api-error { padding: 40px 24px; margin: 24px 16px; }
}