.timeline {
		background: url('../images/web/bg_history.png') no-repeat;
		background-size: cover;
		padding-bottom: 30px;
		width: 100%;
		position: relative;
	}

	.line_before {
		position: absolute;
		bottom: 58px;
		width: 50%;
		left: 0;
		border: 7.5px solid white;
		background-color: white;
		z-index: 1;
	}

	.line_after {
		position: absolute;
		bottom: 58px;
		width: 50%;
		right: 0;
		border: 7.5px solid var(--main2-color);
		background-color: var(--main2-color);
	}

	.timestamp>.year {
		font-size: 36px;
		color: white;
		position: absolute;
		top: 91px;
		right: 48%;
		transform: translateX(50%);
	}

	.swiper-slide-active>.year {
		top: 80px;
		font-size: 40px;
	}

	.timestamp>.point {
		width: 25px;
		height: 25px;
		background-color: #cfe1e2;
		border-radius: 25px;
		border: 4px solid white;
		position: absolute;
		bottom: 20px;
		left: calc(50% - 10px);
	}

	.swiper-slide-active>.point {
		background-color: var(--main-color);
		width: 40px;
		height: 40px;
		bottom: 10px;
		left: calc(50% - 18px);
	}


	.point_line {
		opacity: 0;
		position: absolute;
		bottom: 50px;
		width: 0;
		height: 18px;
		left: 50%;
		/* transform: translateX(50%); */
		border: 2.5px solid white;
		background-color: white;
		z-index: -1;
	}

	.swiper-slide-active>.point_line {
		opacity: 1 !important;
	}

	.timestamp {
		height: 194px;
		overflow: hidden;
		position: relative !important;
	}

	.swiper-wrapper {
		height: 194px;
	}

	.timeline_point {
		position: relative;
	}

	.timeline_point span {
		font-weight: 600;
		padding-top: 20px;
	}

	.timeline_point span:before {
		content: "";
		width: 25px;
		height: 25px;
		background-color: #cfe1e2;
		border-radius: 25px;
		border: 4px solid cadetblue;
		position: absolute;
		top: 0;
		left: calc(50% - 16px);
		transition: all 200ms ease-in;
	}

	.swiper-slide {
		width: 200px;
		text-align: center;
		font-size: 18px;
	}

	.history_title h1 {
		text-align: center;
	}

	.history {
		width: 100%;
		padding: 50px 0;
		margin: 50px auto;
		position: relative;
		overflow: hidden;
	}

	.history .more_info {
		display: none;
	}

	.history:before {
		content: '';
		position: absolute;
		top: 0;
		left: 50%;
		margin-left: -1px;
		width: 3px;
		height: 100%;


		background: #4E4E4E;
		z-index: 0;
		border-radius: 10px;
	}

	@media screen and (max-width:768px) {
		.history:before {
			left: 10px;
			width: 2px;
		}

		.history-block {
			width: 100% !important;
			left: 10px;
			direction: unset !important;
		}

		.history-block-left {
			direction: ltr !important;
		}

		.history-block:nth-child(odd) .history-content,
		.history-block:nth-child(even) .history-content,
		.history-block-left .history-content {
			margin-left: 20px;
			margin-right: 0;
		}

		.history-block:nth-child(odd) .marker,
		.history-block:nth-child(even) .marker,
		.history-block-left .marker {
			transform: translateX(-50%) !important;
		}
	}

	.history-block {
		width: 50%;
		display: flex;
		align-items: flex-start;
		flex-direction: column;
		clear: both;
		padding: 5px 0;
		gap: 10px;
		position: relative;
	}


	.history-block:nth-child(odd) {
		float: left;
		direction: rtl;
	}

	.history-block:nth-child(even) {
		float: right;
	}

	.history-content {
		padding: 20px;
		margin: 10px 0;
		background: #fff;
		box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
		border-radius: 8px;
	}

	.history-block-right {
		float: right;
	}

	.history-block-left {
		float: left;
		direction: rtl
	}


	.history-block:nth-child(even) .marker {
		transform: translateX(-50%);
		margin-right: 10px;
	}


	.history-block:nth-child(odd) .marker {
		transform: translateX(50%);
	}


	.history-block-right .marker {
		transform: translateX(-50%);
		margin-right: 10px;
	}

	.history-block-left .marker {
		transform: translateX(50%);
	}

	.marker {
		width: 20px;
		height: 20px;
		border-radius: 50%;
		border: 2px solid #F5F7FA;
		background: var(--main-color);
		margin-top: 18px;
		z-index: 2;
		position: absolute;
		display: none;

	}


	.history-block:nth-child(odd) .history-content {
		direction: ltr;
		margin-right: 20px;
	}


	.history-block:nth-child(even) h4 {
		margin-left: 0;
		margin-right: auto;
	}

	.history-block:nth-child(even) .history-content {
		margin-left: 20px;
	}


	.history-block-left .history-content {
		margin-right: 20px;
	}

	.history-block-right .history-content {
		margin-left: 20px;
	}

	.history-content {
		/* width: 95%;
		padding: 15px; */
		width: calc(95% - 150px);
		padding: 15px;
		position: relative;
		border: 3px solid var(--main-color);
	}

	.history-block h4 {
		height: auto;
		align-self: flex-start;
		flex-shrink: 0;
		width: fit-content;
		margin: 0;
		line-height: 1.2;
		display: inline-flex;
		justify-content: center;
		align-items: center;
		font-size: 19px;
		font-weight: 500;
		color: #fff;
		text-align: center;
		background: var(--main-color);

	}

	.history-block:nth-child(2n+1) h4 {
		clip-path: polygon(0 0, 100% 0, 100% 50%, 100% 100%, 15px 100%, 0 calc(100% - 10px));
		border-bottom-left-radius: 4px;
		padding: 12px 40px ;
		transform: translateX(-1px);
	}

	.history-block:nth-child(even) h4 {
		clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 15px) 100%, 0 100%, 0 15px);
		border-bottom-right-radius: 4px;
		padding: 12px 50px 12px 40px;transform: translateX(2px);
	}

	.history-content h3 {
		margin-top: 5px;
		margin-bottom: 5px;
		font-size: 25px;
		font-weight: 500;
		color: var(--main-color);
	}

	.history-content span {
		font-size: 15px;
		color: #2c2c2c;
	}


	.history-content .cover {
		margin-top: 10px;
		margin-bottom: 10px;
		text-align: center;
		width: 100%;
		margin-left: 0;
	}

	.history-content .cover img {
		max-width: 100%;
		height: auto;
		max-height: 300px;
		width: auto !important;
		margin: 0 auto;
		border-radius: 5px;
		box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
	}


	@media screen and (max-width: 768px) {
		.history:before {
			left: 10px;
			width: 2px;
		}

		.history-block {
			width: 100%;
			margin-bottom: 30px;
		}


		.history-block:nth-child(odd),
		.history-block:nth-child(even),
		.history-block-right,
		.history-block-left {
			float: none;
			direction: ltr;
		}

		.history-block:nth-child(2n+1) h4 {

			clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 15px) 100%, 0 100%, 0 15px) !important;
			border-bottom-left-radius: 4px !important;
			padding: 10px 40px 10px 50px !important;
			transform: none;
		}

			.history-block:nth-child(even) h4 {
		transform: none;
			}

		.history-content{
			width: calc(95% - 100px);
		}



	}

	@media screen and (max-width:500px) {
		.history-content {
			width: 90%;
		}
	}


	.history-block:nth-child(odd) .history-content {
		direction: ltr;
	}


	.timeline {
		display: none;
	}

	@media screen and (min-width: 769px) {
		.history {
			position: relative;
		}

		.year-nav {
			position: relative;
			padding: 0;
			margin: 0;
			width: 100px;
			margin-left: 0;
			margin-right: 15px;
			background: #fdfcfa;
			background-size: cover;
			/* background: url(https://www.kings.edu.hk/dev/core/themes/olivero/images/kings/bg_history.png) no-repeat;
			background-size: cover;
			background-position: right; */
			color: #333;
		}

		.year-nav::after {
			content: "";
			position: absolute;
			border: solid 1px #ded8cc;
			inset: 0;
			pointer-events: none;
			top: 0;
			right: 0;
			transform: translateX(10px) translateY(10px);
			z-index: 2;
		}

		/* .year-nav::after {
	        content: "";
        position: absolute;
        border: solid 1px #ded8cc;
        inset: 0;
        pointer-events: none;
        top: 10px;
        right: 10px;
        transform: translateX(20px) translateY(10px);
		} */

		.year-nav *,
		.year-nav *::before,
		.year-nav *::after {
			box-sizing: border-box;
		}

		.nav-box {
			display: flex;
			flex-direction: column;
			gap: 6px;
			padding: 20px;
			font-size: 1.15em;
			background: #fff;
			line-height: 27px;
			position: relative;
			max-height: 70vh;
			overflow-y: auto;
			z-index: 1;
		}

		.nav-item {
			padding: 5px 35px 5px 15px;
			cursor: pointer;
			font-weight: 500;
			text-align: left;
			transition: color 0.25s ease, background-color 0.25s ease;
			white-space: nowrap;
			min-height: 32px;
			display: block;
			font-size: 17px;
			font-family: inherit;
			width: 100%;
			color: #333333;
			box-sizing: border-box;
		}

		.nav-item:hover,
		.nav-item:focus,
		.nav-item:active {
			color: var(--main-color);
			text-decoration: none;
			background: transparent;
		}

		.nav-item.active {
			color: var(--main-color);
			font-weight: 600;
			background: transparent;
		}

		.nav-box::-webkit-scrollbar {
			width: 4px;
		}

		.nav-box::-webkit-scrollbar-track {
			background: transparent;
		}

		.nav-box::-webkit-scrollbar-thumb {
			background: rgba(1, 125, 65, 0.3);
			border-radius: 2px;
		}

		.nav-box::-webkit-scrollbar-thumb:hover {
			background: rgba(1, 125, 65, 0.5);
		}
	}

	@media screen and (max-width: 768px) {
		.year-nav {
			display: none !important;
		}
	}