body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  transition: background-color var(--dur-base) var(--ease-out);
}

.jl-topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 120px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  transition: background-color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}

.jl-logo {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--color-primary);
}

.jl-theme-btn {
  border: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-text-2);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

.jl-theme-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.jl-theme-btn:active {
  transform: scale(.97);
}

.jl-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

@media (max-width: 768px) {
  .jl-topbar {
    padding: 0 16px;
  }
  .jl-main {
    padding: 16px;
  }
}

/*基础组件*/
.jl-btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out);
}
.jl-btn:active { transform: scale(.97); }
.jl-btn--primary { background: var(--color-primary); color: #fff; }
.jl-btn--brand { background: var(--color-brand); color: #fff; }
.jl-btn--ghost { background: transparent; color: var(--color-text-2); border: 1px solid var(--color-line); }
.jl-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 16px;
  transition: background-color var(--dur-base) var(--ease-out);
}
.jl-card__title { font-weight: 600; margin-bottom: 12px; }
.jl-avatar {
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-2);
}
.jl-avatar img { width: 100%; height: 100%; object-fit: cover; }
.jl-skeleton__row {
  height: 16px;
  border-radius: 4px;
  margin-bottom: 12px;
  background: var(--skeleton-shimmer);
  background-size: 400% 100%;
  animation: jl-shimmer 1.6s infinite;
}
@keyframes jl-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}
.jl-empty { text-align: center; color: var(--color-text-3); padding: 40px 0; }
.jl-empty__icon { font-size: 32px; line-height: 1; }
.jl-pager { display: flex; gap: 8px; justify-content: center; padding: 16px 0; }
.jl-pager__item {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-2);
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.jl-pager__item.is-active { background: var(--color-primary); color: #fff; }
.jl-demo__row { display: flex; gap: 12px; align-items: center; margin-bottom: 24px; }