/* 发展历程 */
.dev-container {
	max-width: 1920px;
	margin: 0 auto;
	box-sizing: content-box;
}

.dev-container .timeline {
	position: relative;
}

.dev-container .timeline .img {
	display: block;
	width: 100%;
	min-height: 300px;
	object-fit: cover;
	object-position: center;
}

.dev-container .timeline .above {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

.dev-container .timeline .above .column-title .title {
	color: white;
}

.dev-container .timeline .progress {
	display: flex;
	justify-content: center;
	align-items: flex-start;
	margin-top: min(8.5rem, 8vw);
	background-color: transparent;
	height: auto;
}

.dev-container .timeline .progress-item {
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: min(15rem, 20vw);
}

.dev-container .timeline .progress-item::after {
	position: absolute;
	top: 15px;
	left: calc(50% + 15px);
	display: block;
	content: '';
	width: calc(100% - 30px);
	height: 3px;
	background-color: rgba(255, 255, 255, 0.3);
}

.dev-container .timeline .progress-item:last-child:after {
	display: none;
}

.dev-container .timeline .progress-item .circle {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 30px;
	height: 30px;
	background-color: rgba(255, 255, 255, 0.3);
	border-radius: 50%;
}

.dev-container .timeline .progress-item.active .circle {
	border: 3px solid white;
	background-color: transparent;
}

.dev-container .timeline .progress-item.active .circle::before {
	display: block;
	content: '';
	width: 16px;
	height: 16px;
	border-radius: 50%;
	background-color: white;
}

.dev-container .timeline .progress-item .label {
	font-weight: 500;
	font-size: 30px;
	color: #FFFEFE;
	margin: 46px 0 0;
}

.dev-container .timeline .progress-item .describe {
	font-size: 30px;
	color: #FFFEFE;
	margin: 0 0;
}

.dev-container .section {
	max-width: 1200px;
	box-sizing: content-box;
	margin: 0 auto;
}

@media screen and (max-width: 1023px) {
	.dev-container {
		margin-top: max(50px, 3.5vw);
	}

	.dev-container .timeline .progress-item::after {
		top: 12px;
		left: calc(50% + 12px);
		width: calc(100% - 24px);
		height: 2px;
	}

	.dev-container .timeline .progress-item .circle {
		width: 24px;
		height: 24px;
	}

	.dev-container .timeline .progress-item.active .circle {
		border: 2px solid white;
	}
	
	.dev-container .timeline .progress-item.active .circle::before {
		width: 12px;
		height: 12px;
	}

	.dev-container .timeline .progress-item .label {
		font-size: 24px;
		text-align: center;
		margin: 36px 0 0;
	}

	.dev-container .timeline .progress-item .describe {
		font-size: 20px;
		text-align: center;
	}

	.dev-container .section {
		margin-top: 30px;
		margin-bottom: 30px;
		padding: 0 10px;
	}

	.dev-container .section .grid {
		display: grid;
		grid-template-columns: repeat(2, 1fr);
		column-gap: 14px;
		row-gap: 10px;
	}

	.dev-container .section .grid-item .year {
		position: relative;
		font-size: 18px;
		font-weight: bold;
		color: #000000;
		margin: 0;
		padding: 14px 0;
	}

	.dev-container .section .grid-item .year::after {
		position: absolute;
		left: 0;
		bottom: 0;
		display: block;
		content: '';
		width: 100%;
		height: 1px;
		background-color: #E5E5E5;
	}

	.dev-container .section .grid-item .cell {
		display: flex;
		margin-top: 20px;
	}

	.dev-container .section .grid-item .cell .month {
		flex-shrink: 0;
		width: 2.5em;
		font-weight: 500;
		font-size: 14px;
		color: #000000;
		text-align: right;
		line-height: 2;
		margin: 0;
	}

	.dev-container .section .grid-item .cell .label {
		flex-grow: 1;
		font-weight: 500;
		font-size: 14px;
		color: #000000;
		/* padding-left: 14px; */
		line-height: 2;
		margin: 0;
	}
}

@media screen and (min-width: 1024px) {
	.dev-container {
		margin-top: 10.625rem;
	}

	.dev-container .section {
		margin-top: 5rem;
		margin-bottom: 5rem;
		padding: 0 20px;
	}

	.dev-container .section .grid {
		display: grid;
		grid-template-columns: repeat(4, 1fr);
		column-gap: 2.875rem;
	}

	.dev-container .section .grid-item .year {
		position: relative;
		font-size: 1.875rem;
		font-weight: bold;
		color: #000000;
		margin: 0;
		padding: 1.75rem 0;
	}

	.dev-container .section .grid-item .year::after {
		position: absolute;
		left: 0;
		bottom: 0;
		display: block;
		content: '';
		width: 100%;
		height: 1px;
		background-color: #E5E5E5;
	}

	.dev-container .section .grid-item .cell {
		display: flex;
		/* margin-top: 1.5rem; */
		margin-top: 0.8rem;
	}

	.dev-container .section .grid-item .cell .month {
		flex-shrink: 0;
		width: 2.5rem;
		font-weight: 500;
		font-size: 1rem;
		color: #000000;
		text-align: right;
		line-height: 2;
		margin: 0;
	}

	.dev-container .section .grid-item .cell .label {
		flex-grow: 1;
		font-weight: 500;
		font-size: 1rem;
		color: #000000;
		/* padding-left: 1.5rem; */
		line-height: 1.5;
		text-align: justify;
		margin: 0;
		height: 56px;
	}
}