/* =========================================================================
   Ebook Cloud · 首页幻灯轮播组件
   由 Ebook_Cloud_Home_Builder（组件 id: slider）输出，配合 main.js 初始化。
   支持：slide / fade / zoom 三种动画，箭头 / 圆点 / 比例 / 通栏 / 圆角 / 阴影开关。
   ========================================================================= */

.es-slider-section { padding: 0; }

/* 通栏：突破首页容器宽度铺满整屏（仅首页模块上下文，短代码不启用）。 */
.es-slider-section.is-full {
	width: 100vw;
	margin-left: calc(50% - 50vw);
}
.es-slider-section.is-full .es-container {
	max-width: 100%;
	padding-left: 0;
	padding-right: 0;
}

.es-slider {
	position: relative;
	overflow: hidden;
	border-radius: 16px;
	background: #0f172a;
	box-shadow: 0 18px 40px -28px rgba(15, 23, 42, .55);
}

.es-slider__track {
	display: flex;
	width: 100%;
	transition: transform .55s cubic-bezier(.22, .61, .36, 1);
	will-change: transform;
}

.es-slider__slide {
	flex: 0 0 100%;
	position: relative;
	min-width: 0;
}

.es-slider__link {
	display: block;
}

.es-slider__img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 21 / 9;
	object-fit: cover;
}

/* 图片比例变体（作用于图片，slide 动画据此撑高）。 */
.es-slider[data-ratio="16/9"] .es-slider__img { aspect-ratio: 16 / 9; }
.es-slider[data-ratio="4/3"]  .es-slider__img { aspect-ratio: 4 / 3; }
.es-slider[data-ratio="1/1"]  .es-slider__img { aspect-ratio: 1 / 1; }
.es-slider[data-ratio="auto"] .es-slider__img { aspect-ratio: auto; }

.es-slider__caption {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	padding: 28px 26px 20px;
	font-size: 17px;
	font-weight: 700;
	color: #fff;
	background: linear-gradient(to top, rgba(15, 23, 42, .72), rgba(15, 23, 42, 0));
	text-shadow: 0 1px 4px rgba(0, 0, 0, .35);
	pointer-events: none;
}

/* ---------- fade / zoom 动画：幻灯片叠放，依靠 is-active 切换 ---------- */
.es-slider--fade .es-slider__track,
.es-slider--zoom .es-slider__track {
	display: block;
}
.es-slider--fade .es-slider__slide,
.es-slider--zoom .es-slider__slide {
	position: absolute;
	inset: 0;
	opacity: 0;
	transition: opacity .55s ease;
	pointer-events: none;
}
.es-slider--zoom .es-slider__slide {
	transform: scale(1.08);
	transition: opacity .55s ease, transform .55s ease;
}
/* 当前幻灯片回到正常流，撑出容器高度（同时兼容 auto 比例）。 */
.es-slider--fade .es-slider__slide.is-active,
.es-slider--zoom .es-slider__slide.is-active {
	position: relative;
	inset: auto;
	opacity: 1;
	pointer-events: auto;
	z-index: 1;
}
.es-slider--zoom .es-slider__slide.is-active { transform: scale(1); }
/* JS 初始化前先显示首张，避免高度塌陷闪白。 */
.es-slider--fade:not(.is-ready) .es-slider__slide:first-child,
.es-slider--zoom:not(.is-ready) .es-slider__slide:first-child {
	position: relative;
	inset: auto;
	opacity: 1;
	pointer-events: auto;
	z-index: 1;
}

/* ---------- 开关：箭头 / 圆点 / 圆角 / 阴影 ---------- */
.es-slider.is-no-arrows .es-slider__arrow { display: none; }
.es-slider.is-no-dots   .es-slider__dots  { display: none; }
/* 圆角 / 阴影开关需覆盖主题样式管理器令牌，故提高优先级。 */
.es-home .es-slider.is-no-radius,
.es-slider.is-no-radius { border-radius: 0; }
.es-home .es-slider.is-no-shadow,
.es-slider.is-no-shadow { box-shadow: none; }

/* 左右箭头 */
.es-slider__arrow {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 42px;
	height: 42px;
	display: grid;
	place-items: center;
	border: none;
	border-radius: 50%;
	background: rgba(255, 255, 255, .82);
	color: #1d2327;
	font-size: 26px;
	line-height: 1;
	cursor: pointer;
	box-shadow: 0 6px 16px -8px rgba(15, 23, 42, .6);
	opacity: 0;
	transition: opacity .2s, background .2s;
	z-index: 3;
}
.es-slider__arrow:hover { background: #fff; }
.es-slider__arrow--prev { left: 14px; }
.es-slider__arrow--next { right: 14px; }
.es-slider:hover .es-slider__arrow { opacity: 1; }
.es-slider__arrow:focus-visible { opacity: 1; outline: 2px solid #4338ca; outline-offset: 2px; }

/* 圆点导航 */
.es-slider__dots {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 14px;
	display: flex;
	justify-content: center;
	gap: 8px;
	z-index: 3;
}
.es-slider__dot {
	width: 9px;
	height: 9px;
	padding: 0;
	border: none;
	border-radius: 999px;
	background: rgba(255, 255, 255, .55);
	cursor: pointer;
	transition: width .25s, background .25s;
}
.es-slider__dot.is-active {
	width: 22px;
	background: #fff;
}
.es-slider__dot:focus-visible { outline: 2px solid #4338ca; outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
	.es-slider__track { transition: none; }
	.es-slider--fade .es-slider__slide,
	.es-slider--zoom .es-slider__slide { transition: opacity .001s; }
}

@media (max-width: 600px) {
	.es-slider__caption { font-size: 14px; padding: 18px 16px 14px; }
	.es-slider__arrow { width: 34px; height: 34px; font-size: 22px; }
}