/* 全站顶部公告条 —— 仅用设计 token,深浅色 / data-skin 换肤自动跟随。 v6.0.68 */

.site-announcement {
	/* tone 强调色:warn / success 只覆盖这两个变量,卡片 / 图标 / 按钮 / 边框自动跟随 */
	--ann-accent: var(--primary);
	--ann-accent-strong: var(--primary-strong);
	margin: 1rem 0 0;
	transition: opacity 0.25s ease, transform 0.25s ease;
}

/* —— tone 变体:只换强调色,其余属性全部引用 var(--ann-accent) —— */
.site-announcement[data-tone="warn"] {
	--ann-accent: #e6a23c;
	--ann-accent-strong: #d38c1f;
}
.site-announcement[data-tone="success"] {
	--ann-accent: #3fb950;
	--ann-accent-strong: #2f9c40;
}

.site-announcement__inner {
	max-width: var(--site-width);
	margin: 0 auto;
	padding: 0 clamp(1rem, 4vw, 2rem); /* 与 header/内容同款边缘对齐原语 */
}

.site-announcement__card {
	display: flex;
	align-items: center;
	gap: 0.85rem;
	padding: 0.8rem 1rem;
	background: var(--card-bg); /* 回退:不支持 color-mix 时的底色 */
	background: color-mix(in srgb, var(--ann-accent) 5%, var(--card-bg)); /* 极淡 tone 着色,深浅色自适应 */
	border: 1px solid var(--line-strong); /* 回退 */
	border: 1px solid color-mix(in srgb, var(--ann-accent) 20%, var(--line-strong));
	border-left: 3px solid var(--ann-accent);
	border-radius: var(--radius-large);
	box-shadow: var(--shadow);
	color: var(--text);
}

.site-announcement__icon {
	display: flex;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	width: 2rem;
	height: 2rem;
	border-radius: 50%;
	background: var(--btn-hover); /* 回退 */
	background: color-mix(in srgb, var(--ann-accent) 14%, transparent); /* 柔和色底圆 */
	color: var(--ann-accent);
}

.site-announcement__icon .icon {
	width: 18px;
	height: 18px;
}

.site-announcement__body {
	flex: 1 1 auto;
	min-width: 0; /* 允许长文本换行,避免横向溢出 */
	line-height: 1.5;
}

.site-announcement__title {
	font-weight: 600;
	margin-right: 0.4rem;
}

.site-announcement__text {
	color: var(--text-muted);
}

.site-announcement__btn {
	flex: 0 0 auto;
	padding: 0.4rem 0.95rem;
	border-radius: var(--radius-max);
	background: var(--ann-accent);
	color: #fff;
	font-size: 0.85rem;
	font-weight: 500;
	line-height: 1.4;
	text-decoration: none;
	white-space: nowrap;
	transition: background 0.15s ease, transform 0.15s ease;
}

.site-announcement__btn:hover {
	background: var(--ann-accent-strong);
	color: #fff;
	transform: translateY(-1px);
}

.site-announcement__close {
	display: flex;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	width: 1.75rem;
	height: 1.75rem;
	padding: 0;
	border: 0;
	border-radius: var(--radius-max);
	background: transparent;
	color: var(--text-faint);
	font-size: 1.35rem;
	line-height: 1;
	cursor: pointer;
	transition: background 0.15s ease, color 0.15s ease;
}

.site-announcement__close:hover {
	background: var(--btn-hover);
	color: var(--text);
}

/* —— 进入动画:首次渲染轻微滑入淡入。用 backwards(而非 both)填充:
      动画前套用 from 态避免未动画元素闪现,动画后不锁定 to 态,
      以免压制关闭时 .is-closing 的 opacity / transform 过渡。 —— */
@keyframes onedong-announce-in {
	from { opacity: 0; transform: translateY(-8px); }
	to   { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: no-preference) {
	.site-announcement:not(.is-dismissed) {
		animation: onedong-announce-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) backwards;
	}
}

/* —— 关闭动画 / 隐藏 —— */
.site-announcement.is-closing {
	opacity: 0;
	transform: translateY(-6px);
	pointer-events: none;
}
.site-announcement.is-dismissed {
	display: none;
}

/* —— 移动端自适应(768 主断点) —— */
@media (max-width: 768px) {
	.site-announcement {
		margin-top: 0.75rem;
	}
	.site-announcement__inner {
		padding: 0 0.75rem; /* 回落与 .site-main 一致的扁平内边距,避免 clamp 双重内边距横向溢出(v6.0.66 根因) */
	}
	.site-announcement__card {
		position: relative;
		flex-wrap: wrap;
		gap: 0.5rem 0.7rem;
		padding: 0.7rem 0.85rem;
	}
	/* 关闭键仅在可关闭时占位:绝对定位到右上,正文不被遮挡 */
	.site-announcement[data-dismissible="1"] .site-announcement__card {
		padding-right: 2.4rem;
	}
	.site-announcement__close {
		position: absolute;
		top: 0.4rem;
		right: 0.4rem;
	}
	.site-announcement__icon {
		align-self: flex-start;
	}
	.site-announcement__btn {
		order: 3;
		flex: 1 1 100%;
		display: flex;
		align-items: center;
		justify-content: center;
		padding: 0.55rem;
		min-height: 2.5rem; /* ≥44px 触控目标 */
	}
}

@media (max-width: 480px) {
	.site-announcement__card {
		padding: 0.65rem 0.75rem;
	}
	.site-announcement[data-dismissible="1"] .site-announcement__card {
		padding-right: 2.2rem;
	}
	.site-announcement__title {
		display: block; /* 标题独占一行,正文在下 */
		margin-right: 0;
		margin-bottom: 0.1rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.site-announcement,
	.site-announcement__btn,
	.site-announcement__close {
		transition: none;
	}
}