/**
 * 滚动公告栏 - 前端样式
 */

#sab-bar.sab-bar {
	--sab-bg: #d33;
	--sab-color: #ffffff;
	--sab-speed: 30s;

	position: relative;
	/* 保持在正常页面层级中，避免遮挡主题导航栏的下拉菜单。 */
	z-index: auto;
	display: flex;
	align-items: center;
	width: 100%;
	box-sizing: border-box;
	overflow: hidden;
	background: var(--sab-bg);
	color: var(--sab-color);
	font-size: 14px;
	line-height: 1.5;
}

#sab-bar.sab-bar *,
#sab-bar.sab-bar *::before,
#sab-bar.sab-bar *::after {
	box-sizing: inherit;
}

#sab-bar a {
	color: inherit;
	text-decoration: underline;
}

#sab-bar a:hover {
	color: inherit;
	opacity: 0.9;
}

/* 前缀 */
#sab-bar .sab-prefix {
	flex: 0 0 auto;
	padding: 8px 14px;
	font-size: 15px;
	border-right: 1px solid rgba(255, 255, 255, 0.25);
}

/* ---------- 横向滚动 ---------- */

#sab-bar .sab-marquee {
	flex: 1 1 auto;
	min-width: 0;
	overflow: hidden;
}

#sab-bar .sab-marquee__track {
	display: inline-block;
	padding-left: 100%;
	white-space: nowrap;
	animation: sab-scroll var(--sab-speed) linear infinite;
}

#sab-bar.sab-pause-on-hover:hover .sab-marquee__track {
	animation-play-state: paused;
}

#sab-bar .sab-item {
	display: inline-block;
	padding: 8px 24px;
	white-space: nowrap;
}

/* ---------- 字体与字号 ---------- */

#sab-bar.sab-font-yahei {
	font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
}

#sab-bar.sab-font-heiti {
	font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
}

#sab-bar.sab-font-kaiti {
	font-family: "KaiTi", "楷体", "STKaiti", serif;
}

#sab-bar .sab-size-small {
	font-size: 12px;
}

#sab-bar .sab-size-normal {
	font-size: 14px;
}

#sab-bar .sab-size-large {
	font-size: 18px;
}

#sab-bar .sab-size-xlarge {
	font-size: 24px;
}

#sab-bar .sab-weight-bold {
	font-weight: 700;
}

#sab-bar .sab-style-italic {
	font-style: italic;
}

#sab-bar .sab-underline {
	text-decoration: underline;
}

/* ---------- 文字特效 ---------- */

#sab-bar .sab-eff-glow {
	text-shadow: 0 0 6px rgba(255, 255, 255, 0.85), 0 0 18px currentColor, 0 0 34px currentColor;
}

#sab-bar .sab-eff-gradient {
	background: linear-gradient(90deg, #ffd700 0%, #ff7a18 55%, #ff2d55 100%);
	background-size: 200% auto;
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	-webkit-text-fill-color: transparent;
	animation: sab-gradient-flow 3s linear infinite;
}

#sab-bar .sab-eff-blink {
	animation: sab-blink 1.2s step-end infinite;
}

#sab-bar .sab-eff-stroke {
	-webkit-text-stroke: 1.2px rgba(255, 255, 255, 0.9);
	text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.35);
}

#sab-bar .sab-wave-char {
	display: inline-block;
	animation: sab-wave 1.6s ease-in-out infinite;
}

#sab-bar .sab-badge {
	display: inline-block;
	margin-right: 8px;
	padding: 1px 8px;
	border-radius: 3px;
	font-size: 0.85em;
	font-weight: 700;
	vertical-align: 1px;
	-webkit-text-fill-color: currentColor;
	text-shadow: none;
	-webkit-text-stroke: 0;
}

@keyframes sab-scroll {
	from {
		transform: translateX(0);
	}
	to {
		transform: translateX(-100%);
	}
}

@keyframes sab-wave {
	0%,
	100% {
		transform: translateY(0);
	}
	50% {
		transform: translateY(-4px);
	}
}

@keyframes sab-blink {
	50% {
		opacity: 0.15;
	}
}

@keyframes sab-gradient-flow {
	to {
		background-position: 200% center;
	}
}

/* ---------- 纵向轮播 ---------- */

#sab-bar .sab-slides {
	flex: 1 1 auto;
	position: relative;
	height: 56px;
	min-width: 0;
	overflow: hidden;
}

#sab-bar .sab-slide {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0 16px;
	text-align: center;
	opacity: 0;
	transform: translateY(100%);
	transition: opacity 0.5s ease, transform 0.5s ease;
	pointer-events: none;
}

#sab-bar .sab-slide.is-active {
	opacity: 1;
	transform: translateY(0);
	pointer-events: auto;
}

@media (max-width: 600px) {
	#sab-bar .sab-slides {
		height: 72px;
	}
	#sab-bar .sab-item {
		padding: 8px 14px;
	}
	#sab-bar .sab-prefix {
		padding: 8px 10px;
	}
}

@media (prefers-reduced-motion: reduce) {
	#sab-bar .sab-marquee__track {
		animation: none;
	}
	#sab-bar .sab-slide {
		transition: none;
	}
	#sab-bar .sab-wave-char,
	#sab-bar .sab-eff-blink,
	#sab-bar .sab-eff-gradient {
		animation: none;
	}
}