/**
 * Application Gallery：上大下两小 / 上两小下大 交错分组 + 全高图 + 无限滚动
 */
.app-gallery {
	--app-gap: 10px;
	--app-radius: 12px;
	padding: 50px 0;
	overflow: hidden;
}

.app-gallery__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	max-width: 1400px;
	margin: 0 auto;
}

h2.app-gallery__title {
	margin: 0;
	font-size: 40px;
	font-weight: 700;
	line-height: 1.2;
	color: #000;
    padding: 0 0 30px 0;
}

.app-gallery__controls {
	display: flex;
	align-items: center;
	padding: 0 0 30px 0;
}

.app-gallery__play-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: none;
	border-radius: 50%;
	background-color: #f97316;
	color: #fff;
	cursor: pointer;
	transition: opacity 0.2s, transform 0.2s;
}

.app-gallery__play-btn:hover {

}

.app-gallery__controls svg {
    fill: #ffffff;
    width: 13px;
}
.app-gallery__play-btn .app-gallery__icon-pause,
.app-gallery__play-btn .app-gallery__icon-play {
	display: flex;
	align-items: center;
	justify-content: center;
	line-height: 1;
}

.app-gallery__play-btn--playing .app-gallery__icon-pause {display: flex;color: #fff;}
.app-gallery__play-btn--playing .app-gallery__icon-play  { display: none; }
.app-gallery__play-btn:not(.app-gallery__play-btn--playing) .app-gallery__icon-pause { display: none; }
.app-gallery__play-btn:not(.app-gallery__play-btn--playing) .app-gallery__icon-play  { display: flex; }

/* 滚动区域 */
.app-gallery__scroll {
	overflow: hidden;
}

.app-gallery__track {
	display: flex;
	will-change: transform;
}

/* 条带：所有分组横向排列 */
.app-gallery__strip {
	display: flex;
	gap: var(--app-gap);
	flex-shrink: 0;
	padding: 0 calc(var(--app-gap) / 2);
}

/* 每个分组：纵向 flex，固定高度 */
.app-gallery__group {
	display: flex;
	flex-direction: column;
	gap: var(--app-gap);
	flex-shrink: 0;
	height: 340px;
}

/* 分组内的通用图片项 */
.app-gallery__item {
	flex: 1;
	min-height: 0;
}

.app-gallery__item-inner {
	width: 100%;
	height: 100%;
	overflow: hidden;
	border-radius: var(--app-radius);
	box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
	background: #fff;
}

.app-gallery__item-inner img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* 两张小图的横向容器 */
.app-gallery__pair {
	display: flex;
	gap: var(--app-gap);
	min-height: 0;
}

.app-gallery__pair > .app-gallery__item {
	flex: 1;
	min-width: 0;
}

/* ── 上大下两小 ── */
.app-gallery__group--top-big {
	width: 300px;
}

.app-gallery__group--top-big > .app-gallery__item--big {
	flex: 1.4;
}

.app-gallery__group--top-big > .app-gallery__pair {
	flex: 1;
}

/* ── 上两小下大 ── */
.app-gallery__group--bottom-big {
	width: 300px;
}

.app-gallery__group--bottom-big > .app-gallery__pair {
	flex: 1;
}

.app-gallery__group--bottom-big > .app-gallery__item--big {
	flex: 1.4;
}

/* ── 全高单图 ── */
.app-gallery__group--full {
	width: 230px;
}

.app-gallery__group--full > .app-gallery__item--full {
	flex: 1;
}

/* ── 两图纵向堆叠 ── */
.app-gallery__group--pair {
	width: 160px;
}

.app-gallery__group--pair > .app-gallery__item {
	flex: 1;
}

/* 桌面端加宽 */
@media (min-width: 768px) {
	.app-gallery__group--top-big,
	.app-gallery__group--bottom-big {
		width: 360px;
	}

	.app-gallery__group--full {
		width: 270px;
	}

	.app-gallery__group--pair {
		width: 180px;
	}
}