/*
	Aerial 1.0 by HTML5 UP
	html5up.net | @n33co
	Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)
*/
@import url("http://fonts.googleapis.com/css?family=Source+Sans+Pro:300,900");
@import url("font-awesome.min.css");

/* Basic */

	body, input, select, textarea {
		color: white;
		font-family: 'Source Sans Pro', sans-serif;
		font-size: 15pt;
		font-weight: 300 !important;
		letter-spacing: -0.025em;
		line-height: 1.75em;
	}

	body {
		background: white;
		overflow: hidden;
	}

		body.loading * {
			-moz-animation: none !important;
			-webkit-animation: none !important;
			-o-animation: none !important;
			-ms-animation: none !important;
			animation: none !important;
		}

	a .img{
		-moz-transition: border-color 0.2s ease-in-out;
		-webkit-transition: border-color 0.2s ease-in-out;
		-o-transition: border-color 0.2s ease-in-out;
		-ms-transition: border-color 0.2s ease-in-out;
		transition: border-color 0.2s ease-in-out;
		border-bottom: dotted 1px;
		color: inherit;
		outline: 0;
		text-decoration: none;
	}

		a:hover .img {
			border-color: transparent;
			transform: scale(1.2);
			opacity: 0.2
		}

/* Wrapper */
	@-moz-keyframes wrapper { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-webkit-keyframes wrapper { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-o-keyframes wrapper { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-ms-keyframes wrapper { 0% { opacity: 0; } 100% { opacity: 1; } }
	@keyframes wrapper { 0% { opacity: 0; } 100% { opacity: 1; } }

	#wrapper {
		-moz-animation: wrapper 3s forwards;
		-webkit-animation: wrapper 3s forwards;
		-o-animation: wrapper 3s forwards;
		-ms-animation: wrapper 3s forwards;
		animation: wrapper 3s forwards;
		height: 100%;
		left: 0;
		opacity: 0;
		position: fixed;
		top: 0;
		width: 100%;
	}

/* BG */

	#bg {
		-moz-animation: bg 60s linear infinite;
		-webkit-animation: bg 60s linear infinite;
		-o-animation: bg 60s linear infinite;
		-ms-animation: bg 60s linear infinite;
		animation: bg 60s linear infinite;
		-moz-backface-visibility: hidden;
		-webkit-backface-visibility: hidden;
		-o-backface-visibility: hidden;
		-ms-backface-visibility: hidden;
		backface-visibility: hidden;
		-moz-transform: translate3d(0,0,0);
		-webkit-transform: translate3d(0,0,0);
		-o-transform: translate3d(0,0,0);
		-ms-transform: translate3d(0,0,0);
		transform: translate3d(0,0,0);
		background-color: #348cb2;
		background-image: url("images/bg.jpg");
		background-position: bottom left;
		background-repeat: repeat-x;
		height: 100%;
		left: 0;
		opacity: 1;
		position: fixed;
		top: 0;
	}
	@-moz-keyframes bg { 0% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); } 100% { -moz-transform: translate3d(-2250px,0,0); -webkit-transform: translate3d(-2250px,0,0); -o-transform: translate3d(-2250px,0,0); -ms-transform: translate3d(-2250px,0,0); transform: translate3d(-2250px,0,0); } }
	@-webkit-keyframes bg { 0% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); } 100% { -moz-transform: translate3d(-2250px,0,0); -webkit-transform: translate3d(-2250px,0,0); -o-transform: translate3d(-2250px,0,0); -ms-transform: translate3d(-2250px,0,0); transform: translate3d(-2250px,0,0); } }
	@-o-keyframes bg { 0% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); } 100% { -moz-transform: translate3d(-2250px,0,0); -webkit-transform: translate3d(-2250px,0,0); -o-transform: translate3d(-2250px,0,0); -ms-transform: translate3d(-2250px,0,0); transform: translate3d(-2250px,0,0); } }
	@-ms-keyframes bg { 0% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); } 100% { -moz-transform: translate3d(-2250px,0,0); -webkit-transform: translate3d(-2250px,0,0); -o-transform: translate3d(-2250px,0,0); -ms-transform: translate3d(-2250px,0,0); transform: translate3d(-2250px,0,0); } }
	@keyframes bg { 0% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); } 100% { -moz-transform: translate3d(-2250px,0,0); -webkit-transform: translate3d(-2250px,0,0); -o-transform: translate3d(-2250px,0,0); -ms-transform: translate3d(-2250px,0,0); transform: translate3d(-2250px,0,0); } }

	#bg {
		background-size: 2250px auto;
		width: 6750px;
	}

/* Overlay */
	@-moz-keyframes overlay { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-webkit-keyframes overlay { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-o-keyframes overlay { 0% { opacity: 0; } 100% { opacity: 1; } }
	@-ms-keyframes overlay { 0% { opacity: 0; } 100% { opacity: 1; } }
	@keyframes overlay { 0% { opacity: 0; } 100% { opacity: 1; } }

	#overlay {
		-moz-animation: overlay 1.5s 1.5s forwards;
		-webkit-animation: overlay 1.5s 1.5s forwards;
		-o-animation: overlay 1.5s 1.5s forwards;
		-ms-animation: overlay 1.5s 1.5s forwards;
		animation: overlay 1.5s 1.5s forwards;
		background-attachment: fixed, fixed;
		background-image: url("images/overlay-pattern.png"), url("images/overlay.svg");
		background-position: top left, center center;
		background-repeat: repeat, no-repeat;
		background-size: auto, cover;
		height: 100%;
		left: 0;
		opacity: 0;
		position: fixed;
		top: 0;
		width: 100%;
	}

/* Main */

	#main {
		height: 100%;
		left: 0;
		position: fixed;
		text-align: center;
		top: 0;
		width: 100%;
	}

		#main:before {
			content: '';
			display: inline-block;
			height: 100%;
			margin-right: 0;
			vertical-align: middle;
			width: 1px;
		}

/* Header */
	@-moz-keyframes header { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-webkit-keyframes header { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-o-keyframes header { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-ms-keyframes header { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@keyframes header { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-moz-keyframes nav-icons { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-webkit-keyframes nav-icons { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-o-keyframes nav-icons { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@-ms-keyframes nav-icons { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }
	@keyframes nav-icons { 0% { -moz-transform: translate3d(0,1em,0); -webkit-transform: translate3d(0,1em,0); -o-transform: translate3d(0,1em,0); -ms-transform: translate3d(0,1em,0); transform: translate3d(0,1em,0); opacity: 0; } 100% { -moz-transform: translate3d(0,0,0); -webkit-transform: translate3d(0,0,0); -o-transform: translate3d(0,0,0); -ms-transform: translate3d(0,0,0); transform: translate3d(0,0,0); opacity: 1; } }

	#header {
		-moz-animation: header 1s 0.5s forwards;
		-webkit-animation: header 1s 0.5s forwards;
		-o-animation: header 1s 0.5s forwards;
		-ms-animation: header 1s 0.5s forwards;
		animation: header 1s 0.5s forwards;
		-moz-backface-visibility: hidden;
		-webkit-backface-visibility: hidden;
		-o-backface-visibility: hidden;
		-ms-backface-visibility: hidden;
		backface-visibility: hidden;
		-moz-transform: translate3d(0,0,0);
		-webkit-transform: translate3d(0,0,0);
		-o-transform: translate3d(0,0,0);
		-ms-transform: translate3d(0,0,0);
		transform: translate3d(0,0,0);
		cursor: default;
		display: inline-block;
		opacity: 0;
		position: relative;
		text-align: center;
		top: -1em;
		vertical-align: middle;
		width: 90%;
	}

	#header h1 {
		font-size: 4.35em;
		font-weight: 900;
		letter-spacing: -0.035em;
		line-height: 1em;
	}

	#header p {
		font-size: 1.25em;
		margin: 0.75em 0 0.25em 0;
		opacity: 0.75;
	}

	#header nav {
		margin: 1.5em 0 0 0;
	}

	#header nav li {
		-moz-animation: nav-icons 0.5s ease-in-out forwards;
		-webkit-animation: nav-icons 0.5s ease-in-out forwards;
		-o-animation: nav-icons 0.5s ease-in-out forwards;
		-ms-animation: nav-icons 0.5s ease-in-out forwards;
		animation: nav-icons 0.5s ease-in-out forwards;
		-moz-backface-visibility: hidden;
		-webkit-backface-visibility: hidden;
		-o-backface-visibility: hidden;
		-ms-backface-visibility: hidden;
		backface-visibility: hidden;
		-moz-transform: translate3d(0,0,0);
		-webkit-transform: translate3d(0,0,0);
		-o-transform: translate3d(0,0,0);
		-ms-transform: translate3d(0,0,0);
		transform: translate3d(0,0,0);
		display: inline-block;
		height: 5.35em;
		line-height: 5.885em;
		opacity: 0;
		position: relative;
		top: 0;
		width: 5.35em;
	}

	#header nav li:nth-child(1) {
		-moz-animation-delay: 1s;
		-webkit-animation-delay: 1s;
		-o-animation-delay: 1s;
		-ms-animation-delay: 1s;
		animation-delay: 1s;
	}

	#header nav li:nth-child(2) {
		-moz-animation-delay: 1.25s;
		-webkit-animation-delay: 1.25s;
		-o-animation-delay: 1.25s;
		-ms-animation-delay: 1.25s;
		animation-delay: 1.25s;
	}

	#header nav li:nth-child(3) {
		-moz-animation-delay: 1.5s;
		-webkit-animation-delay: 1.5s;
		-o-animation-delay: 1.5s;
		-ms-animation-delay: 1.5s;
		animation-delay: 1.5s;
	}

	#header nav li:nth-child(4) {
		-moz-animation-delay: 1.75s;
		-webkit-animation-delay: 1.75s;
		-o-animation-delay: 1.75s;
		-ms-animation-delay: 1.75s;
		animation-delay: 1.75s;
	}

	#header nav li:nth-child(5) {
		-moz-animation-delay: 2s;
		-webkit-animation-delay: 2s;
		-o-animation-delay: 2s;
		-ms-animation-delay: 2s;
		animation-delay: 2s;
	}


	#header nav a {
		-webkit-tap-highlight-color: transparent;
		-webkit-touch-callout: none;
		border: 0;
		display: inline-block;
	}

	#header nav a:before {
		-moz-transition: all 0.2s ease-in-out;
		-webkit-transition: all 0.2s ease-in-out;
		-o-transition: all 0.2s ease-in-out;
		-ms-transition: all 0.2s ease-in-out;
		transition: all 0.2s ease-in-out;
		border-radius: 100%;
		border: solid 1px white;
		display: block;
		font-size: 1.75em;
		height: 2.5em;
		line-height: 2.5em;
		position: relative;
		text-align: center;
		top: 0;
		width: 2.5em;
	}


	#header nav a:hover:before {
		background-color: rgba(255, 255, 255, 0.175);
		color: white;
	}

	#header nav a:active {
		font-size: 0.95em;
		background: none;
	}

	#header nav a:active:before {
		background-color: rgba(255, 255, 255, 0.35);
		color: white;
	}

	#header nav a .img:before{
		display: none;
	}
					
	#header ul li {
		display: inline-block;
		margin: 2em 5em; /* 调整外边距，视需要而定 */
		padding: 0; /* 调整内边距，视需要而定 */
	}

	#header nav a:hover .hover-text {
		opacity: 1; /* 悬停时的半透明度 */
	}

	#header nav a .hover-text {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		opacity: 0;
		transition: opacity 0.5s ease; /* 平滑过渡效果 */
		display: flex;
		flex-direction: column; /* 垂直堆叠 */
		justify-content: center;
		align-items: center;
		text-align: center;
		color:#FFFFFF;

	}

	#header nav a .hover-text h2 {

		font-size: 1.5em;
		font-weight: 700;
		padding: 0;
		height: 1em;
	}

	#header nav a .hover-text p {
		font-style: italic;
		margin: 0;
		font-size: 1em;
		font-weight: 700;
		width:300% ;
		line-height: 1.5em; /* 行间距 */
		margin: 3em 1em;
	}

/* Footer */

	#footer {
		background-image: -moz-linear-gradient(top, rgba(0,0,0,0), rgba(0,0,0,0.5) 75%);
		background-image: -webkit-linear-gradient(top, rgba(0,0,0,0), rgba(0,0,0,0.5) 75%);
		background-image: -o-linear-gradient(top, rgba(0,0,0,0), rgba(0,0,0,0.5) 75%);
		background-image: -ms-linear-gradient(top, rgba(0,0,0,0), rgba(0,0,0,0.5) 75%);
		background-image: linear-gradient(top, rgba(0,0,0,0), rgba(0,0,0,0.5) 75%);
		bottom: 0;
		cursor: default;
		height: 6em;
		left: 0;
		line-height: 8em;
		position: absolute;
		text-align: center;
		width: 100%;
	}
	#footer h1 {
			font-size: 2em;
			font-weight: 900;
			letter-spacing: -0.035em;
			line-height: 1em;
		}
	#footer ul li {
		display: inline-block;
		margin: 0 20px; /* 调整外边距，视需要而定 */
		padding: 0; /* 调整内边距，视需要而定 */
	}
	

/* 悬浮对话框 */

#chatbot {
	position: fixed;
	bottom: 20px;
	right: 20px;
	z-index: 1000;
}

.circle-image {
	box-shadow: 0 0 0 2px white; /* 外阴影，无偏移，2px宽度的白色描边 */
	border-radius: 50%; /* 使图片边框圆角为50%，形成圆形 */
	width: 70px;        /* 设置图片宽度 */
	height: 70px;       /* 设置图片高度 */
	cursor: pointer;
  }

#chatbot-window {
	display: block;
	background-color: #8a9ce4;
	box-shadow: 0 4px 6px rgba(0,0,0,0.1);
	width: 500px;
	height: 600px;
	position: absolute;
	bottom: 5px;
	right: 0;
	border-radius: 8px;
	padding: 20px;
	overflow: hidden;
	max-height: 0; /* 初始状态不显示对话框 */
	opacity: 0; /* 初始透明 */
	transition: max-height 0.5s ease-in-out, opacity 0.5s ease-in-out; /* 平滑过渡效果 */
}

#chatbot-window.open {
	max-height: 600px; /* 展开时的最大高度 */
	opacity: 1; /* 完全不透明 */
}


#chatbot-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 10px;
}

#chatbot-close {
	cursor: pointer;
	background: none;
	border: none;
}

.ai-message, .user-message {
	padding: 5px;
	border-radius: 10px;
	margin: 5px 0;
	max-width: 80%;
	word-wrap: break-word;
}

.ai-message {
	background-color: #69a0e9;
	align-self: flex-start;
}

.user-message {
	background-color: #a0e48a;
	color: white;
	align-self: flex-end;
}

#chatbot-messages {
	display: flex;
	flex-direction: column;
	height: 460px;
	overflow-y: auto;
	margin-bottom: 10px;
	padding: 10px;
	background: #fff;
	border: 1px solid #ddd;
}

#chatbot-input {
	width: 100%;
	padding: 5px;
	border: 1px solid #ddd;
	border-radius: 4px;
	color: #333;
}