/*fix edu nav*/
@media (min-width: 992px) {
	.navbar-nav {
		float: left;
	}
}

.footer-copyright {
	padding-bottom: 1.5rem !important;
}

@media (min-width: 1200px) {

	.container,
	.container-lg,
	.container-md,
	.container-sm,
	.container-xl {
		max-width: 1320px;
	}

	.container,
	.container-lg {
		width: 1320px;
	}
}

/*index*/
body {
	background-color: transparent;
}

.navbar-brand {
	height: auto;
	padding-top: 15px;
	padding-bottom: 0px;
}

.navbar-default {
	background-color: transparent;
	/*background-color: rgb(244 238 249 / 75%);*/
}

.navbar-default.no-blur {
	/*background-color: rgb(255 255 255 / 95%)*/
}

.navbar-default {
	border: 0 !important;
	margin-bottom: 0 !important;
}

.navbar-default .navbar-toggle {
	background-color: #fff;
	border-color: #fff;
	margin-top: 15px;
	margin-bottom: 15px;
}

.navbar-default .navbar-toggle .icon-bar {
	background-color: #bfb8cf;
}

.navbar-nav {
	margin-top: 0;
	margin-bottom: 0;
}

.navbar-nav>li>a {
	color: #2c3045 !important;
	font-weight: 400;
	font-size: 1.25rem;
}

.navbar-nav>li {
	position: relative;
}

.navbar-nav>li:before {
	content: '';
	position: absolute;
	bottom: 0px;
	left: 0;
	right: 0;
	height: 2px;
	width: 0%;
	background-color: #3376f2;
	overflow: hidden;
	-webkit-transition-duration: 0.5s;
	transition-duration: 0.5s;
}

.navbar-default .navbar-nav>.active>a,
.navbar-default .navbar-nav>.active>a:hover,
.navbar-default .navbar-nav>.active>a:focus,
.navbar-default .navbar-nav>.open>a,
.navbar-default .navbar-nav>.open>a:hover,
.navbar-default .navbar-nav>.open>a:focus {
	background-color: transparent;
	color: #3376f2 !important;
}

.dropdown-menu {
	border: 0;
	border-radius: 0 0 5px 5px !important;
}

.dropdown-menu>li,
.dropdown-menu>li>a {
	font-size: 1rem;
	color: #2c3045;
}

.brand-img img,
.index-logo {
	height: 35px;
	margin: 0;
}

.ai-v2 {
	font-size: 12px;
	font-weight: 400;
	font-style: italic;
	color: #fff;
	display: inline-block;
	margin: 0;
	padding: 0 6px;
	background: #ffc107;
	border-radius: 18px;
	height: 18px;
	line-height: 18px;
}

.ai-v2 b {
	-webkit-transform: scale(0.90);
	display: block;
}

.index-reg {
	padding-bottom: 15px;
}

.index-reg a {
	display: inline-block;
	border-radius: 30px;
	height: 30px;
	line-height: 28px;
	padding: 0 10px;
	border: 1px solid #3376f2;
	color: #3376f2;
	font-size: 1rem;
	font-weight: 600;
}

.index-reg a i {
	margin-right: 0.5rem;
}

@media(min-width: 768px) {
	.navbar-nav>li>a {
		padding-top: 0;
		padding-bottom: 0;
		height: 70px;
		line-height: 70px;
		padding: 0rem;
	}

	.navbar-nav>li {
		margin: 0 1.5rem;
	}

	.brand-img img,
	.index-logo {
		height: 50px;
		margin-right: 3rem;
	}

	.dropdown-menu>li>a {
		padding-top: 8px;
		padding-bottom: 8px;
	}

	.navbar-nav>li.active:before,
	.navbar-nav>li:hover:before {
		width: 100%;
	}

	.index-reg {
		padding-bottom: 0;
		padding-top: 15px;
	}

	.index-reg a {
		display: inline-block;
		border-radius: 40px;
		height: 40px;
		line-height: 38px;
		padding: 0 15px;
	}
}

/*hero*/
.index-hero-container {
	height: auto;
	width: 100%;
	padding-top: 90px;
	padding-bottom: 30px;
	/*
	background: linear-gradient(#2163e8, #9303CE);
	background-image: url("/assets/edu/hero-background.svg");
	background-position: top center;
	background-repeat: no-repeat;
	background-color: #f5f7ff;
	background-size: cover;
	*/
	padding-top: 90px;
}

.index-hero-container .hero-left {
	text-align: center;
}

.index-hero-container .hero-right {
	text-align: center
}

.index-hero-container .hero-h5 {
	font-size: 1.75rem;
	font-weight: 300;
	letter-spacing: 2px;
	margin-bottom: 0;
	opacity: 0.8;
	padding-left: 0.25rem;
}

.index-hero-container .hero-h1 {
	font-weight: 600;
	font-size: 4rem;
	position: relative;
	display: inline-block;
	margin: 0;
	padding: 0;
	letter-spacing: 2px;
}

.index-hero-container .hero-h1 span b {
	/**/
	font-weight: 600;
}

.index-hero-container .hero-h1 em {
	position: absolute;
	right: -40px;
	top: 10px;
}

.index-hero-container .hero-typed {
	font-size: 1.5rem;
	font-weight: 300 !important;
}

.text-highlight-warning {
	color: #837e6f !important;
}

.index-hero-container .get-started-links {
	display: flex;
	justify-content: center;
}

.index-hero-container .get-started-links a {
	display: inline-block;
	font-size: 1.25rem;
	border-radius: 6px;
	transition: all 0.3s;
	-webkit-transition: all 0.3s;
	border: none;
	height: 60px;
	line-height: 60px;
	padding: 0 1.5rem;
}

.index-hero-container .get-started-links a.ai-chat {
	background: linear-gradient(60deg, #3a7eff, #ff5077);
	color: #fff;
	margin-right: 1rem;
}

.index-hero-container .get-started-links a.ai-chat:hover {
	padding-left: 2.5rem !important;
	padding-right: 2.5rem !important;
}

.index-hero-container .get-started-links .siteLink {
	border: 2px solid #3376f2;
	color: #3376f2 !important;
}

.text-fill-color {
	-webkit-text-fill-color: transparent;
	background: linear-gradient(90deg, #3a7eff, #ff5077);
	background-clip: text;
	-webkit-background-clip: text;
	color: transparent;
	/*font-size: 60px;*/
	letter-spacing: 2px;
	margin: 0;
	width: -webkit-fit-content;
	width: -moz-fit-content;
	width: fit-content;
	position: relative;
}

/*ai video*/
.ai-tools-box {
	height: auto;
}

.ai-tools-mini-glow-box {
	height: 100%;
	width: 100%;
	background: white;
	position: relative;
	border-radius: 20px;
}

.ai-tools-mini-glow-box::before {
	content: '';
	position: absolute;
	top: -2px;
	left: -2px;
	right: -2px;
	bottom: -2px;
	background: linear-gradient(90deg,
			#60faff,
			#fd7e14,
			#60faff);
	border-radius: 21px;
	background-size: 200% auto;
	animation:
		glow-flow 6s linear infinite,
		glow-breathe 4s ease-in-out infinite;
	z-index: 0;
	opacity: 0.75;
	filter: blur(5px);
}

.ai-tools-mini-glow-box::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: #fff;
	border-radius: 20px;
	z-index: 1;
	border: 0px solid #fff;
}

@keyframes glow-flow {
	0% {
		background-position: 0% 50%;
	}

	100% {
		background-position: 200% 50%;
	}
}

@keyframes glow-breathe {

	0%,
	100% {
		opacity: 0.5;
	}

	50% {
		opacity: 0.9;
	}
}

@media(min-width:768px) {
	.index-hero-container {
		width: 100%;
		padding: 130px 0 0 0;
	}

	.index-hero-row {
		padding: 0;
		display: flex;
		align-items: center;
	}

	.index-hero-container .hero-left {
		text-align: left;
	}

	.index-hero-container .hero-h5 {
		font-size: 1.75rem;
		font-weight: 300;
	}

	.index-hero-container .hero-h1 {
		font-size: 4.5rem;
	}

	.index-hero-container .get-started-links {
		display: flex;
		justify-content: start;
	}
}

/*features*/
.features-list {
	position: relative;
	margin: 2rem 0;
	padding: 0;
	min-height: 290px;
}

.features-list .features-items {
	position: relative;
	height: 250px;
	background: linear-gradient(#fffbfb, #e4f4f3);
	/*background-color: #f8fbff;*/
	opacity: 0.9;
	border: 0 !important;
	border-radius: 10px;
	cursor: pointer;
	transition: all 0.3s;
	-webkit-transition: all 0.3s;
	margin-bottom: 30px;
}

.features-list .features-items .item-text {
	position: relative;
	width: 100%;
	height: 100%;
	padding: 2rem 2.5rem;
	overflow: hidden;
}

.features-list .features-items .item-image {
	position: absolute;
	top: -30px;
	right: 10px;
	width: 115px;
	height: 115px;
	transition: all 0.3s;
	-webkit-transition: all 0.3s;
}

.features-list .features-items .item-title {
	font-size: 2rem;
	font-weight: 600;
	text-align: left;
	color: #2c3045;
}

.features-list .features-items .item-tips {
	font-size: 15px;
	font-weight: 400;
	text-align: left;
	color: #5e6e82;
	margin-bottom: 0.25rem;
}

.features-list .features-items .item-btn {
	transition: all 0.3s;
	-webkit-transition: all 0.3s;
	padding-top: 5px;
}

.features-list .features-items .item-btn a {
	display: inline-block;
	height: 40px;
	line-height: 36px;
	border: 2px solid #3376f2;
	color: #3376f2;
	font-weight: bold;
	padding: 0 20px;
	border-radius: 40px;
}

.features-list .features-items.f1 .item-image {
	background: url("/assets/edu/index/f4.png") no-repeat;
	background-size: contain;
}

.features-list .features-items.f2 .item-image {
	background: url("/assets/edu/index/f5.png") no-repeat;
	background-size: contain;
}

.features-list .features-items.f3 .item-image {
	background: url("/assets/edu/index/f3.png") no-repeat;
	background-size: contain;
}

.features-list .features-items:hover {
	height: 290px;
	background: linear-gradient(#efe2e3, #bfe7f3);
	opacity: 1;
}

.features-list .features-items:hover .item-title,
.features-list .features-items:hover .item-tips {
	/*color: #3376f2;*/
}

.features-list .features-items:hover .item-image {
	top: -50px;
}

.features-list .features-items:hover .item-btn {
	padding-top: 25px;
}

.index-features-2 {
	background-image: url("/assets/edu/index/index-fbg-1-bg.jpg");
	background-size: contain;
	background-size: cover;
	background-position: center;
	background-repeat: repeat;
}

.features-2 {
	padding-top: 0;
	position: relative;
}

.features-2 .features-img {
	width: 100%;
	height: auto;
	position: relative;
	display: none;
}

.features-2 .features-img img {
	width: 100%;
	height: auto;
}

.features-2 .features-2-border {
	border: 0;
	background-color: #fff;
	padding: 20px;
	border-radius: 5px;
}

.features-2-item {
	border: 1px dotted #c1e9e6;
	border-radius: 5px;
	padding: 10px 20px;
}

.features-2-item h5 {
	font-size: 1.125rem;
	font-weight: 600;
	color: #3376f2;
	display: inline-block;
	position: relative;
	line-height: 2;
}

.features-2-item h5:before {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 0;
	right: 0;
	height: 5px;
	width: 2.25rem;
	background-color: #3376f2;
	background: linear-gradient(90deg, #3a7eff, #ff5077);
	overflow: hidden;
	-webkit-transition-duration: 0.5s;
	transition-duration: 0.5s;
	opacity: 0.2;
	border-radius: 5px;
}

.features-2-item p {
	margin: 0;
	padding: 0;
	font-size: 14px;
	display: block;
}

.features-2-item:hover h5:before {
	width: 100%;
}

/**/
.index-news-h2 h2 {
	font-size: 3rem;
	font-weight: bold;
}

.index-news-item {
	display: block;
	margin-bottom: 30px;
	position: relative;
	border-radius: 10px;
	height: 260px;
}

.index-news-item.index-news-item-topic {
	height: 550px;
}

.index-news-item .item-img {
	width: 100%;
}

.index-news-item .item-img img {
	height: 100%;
	width: 100%;
	object-fit: cover;
	border-radius: 10px 10px 0 0;
}

.index-news-item .item-title {
	height: 80px;
	width: 100%;
	padding: 25px 20px;
	padding-bottom: 0px;
	position: relative;
}

.index-news-item .item-title.ceindex-style {
	padding-left: 70px;
}

.index-news-item .item-title .ceindex-date {
	height: 80px;
	width: 60px;
	background-color: #3376f2;
	color: #fff;
	text-align: center;
	padding: 0 5px;
	font-size: 14px;
	position: absolute;
	z-index: 1;
	left: 0;
	top: 0;
	border-radius: 10px 0 10px 0;
}

.index-news-item .item-title .ceindex-date .date-1 {
	font-size: 2rem;
	line-height: 1.25;
	font-weight: bold;
	padding-top: 12px;
	border-bottom: 1px solid #fff;
}

.index-news-item .item-title h4 {
	width: 100%;
	margin: 0;
	padding: 0;
	height: 50px;
	line-height: 25px;
	overflow: hidden;
	font-size: 1.125rem;
	font-weight: bold;
}

.item-title-topic {
	padding: 30px;
	padding-bottom: 0;
}

.item-title-topic h4 {
	font-size: 1.5rem;
	font-weight: bold;
	margin: 0;
	padding: 0;
}

.item-description {
	padding: 20px 30px;
	color: #748194;
}

.item-description>div {
	color: #3376f2;
	transition: all 0.3s;
	-webkit-transition: all 0.3s;
}

.index-news-item:hover {
	background-color: #eef3f9;
}

.index-news-item:hover .item-description>div {
	padding-left: 30px;
}

@media(min-width:768px) {
	.features-list {
		margin: 3rem 0;
	}

	.features-list .features-items {
		margin-bottom: 0;
	}

	.features-2 {
		padding: 50px 0 0 10px;
		position: relative;
		height: 400px;
	}

	.features-2 .features-img {
		position: absolute;
		z-index: 1;
		height: 400px;
		width: auto;
		left: 0;
		top: 0;
		display: block;
	}

	.features-2 .features-img img {
		height: 100%;
		width: auto;
	}

	.features-2 .features-2-border {
		height: 340px;
		padding-left: 450px;
		padding-top: 30px;
		padding-right: 30px;
	}

	.features-2-item {
		height: 130px;
	}
}


/* 禁用遮罩层点击事件 */
#aiChatModal .modal-dialog {
	margin: 5vh 1rem !important;
}

#aiChatModal .modal-content {
	height: 90vh;
}

#aiChatModal .modal-body {
	height: 90vh;
}

#aiChatModal .xh {
	height: 100%;
	padding: 15px 0;
	position: relative;
}

#aiChatModal .ai-chat-box,
#aiChatModal .aiChatNavCol {
	height: 100%;
	position: relative
}

#aiChatModal .aiChatNav {
	height: 100%;
	position: relative;
	border-right: 1px solid #f5f7ff;
}

.aiChatNav a {
	display: block;
	margin: 0;
	padding: 0;
	margin-bottom: 10px;
	height: 40px;
	line-height: 40px;
	background: #f5f7ff;
	border-radius: 5px 0 0 5px;
	text-align: center;
	color: #2c3045;
	position: relative;
	margin-right: -1px;
	z-index: 1;
}

.aiChatNav a.active {
	background-color: #ffc107;
	color: #fff;
	box-shadow: 0 0 0.375rem rgba(0, 0, 0, 0.25) !important;
	width: calc(100% + 12px);
}

.aiChatNav a.active:before {
	content: '';
	position: absolute;
	bottom: -10px;
	right: 0;
	height: 5px;
	width: 5px;
	overflow: hidden;
	border-left: 5px solid #af8508;
	border-top: 5px solid #af8508;
	border-right: 5px solid transparent;
	border-bottom: 5px solid transparent;
}

@media(min-width:768px) {
	#aiChatModal .modal-dialog {
		margin: 5vh auto !important;
	}

	#aiChatModal .modal-dialog {
		width: 800px;
	}
}

/* 背景圆形容器 */
.circles-container {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: -1;
	overflow: hidden;
}

/* 圆形元素基础样式 */
.circle {
	position: absolute;
	border-radius: 50%;
	filter: blur(60px);
	opacity: 0.7;
	animation-duration: 15s;
	animation-timing-function: ease-in-out;
	animation-iteration-count: infinite;
}

/* 不同大小的圆形 */
.circle-large {
	width: 400px;
	height: 400px;
}

.circle-medium {
	width: 250px;
	height: 250px;
}

.circle-small {
	width: 150px;
	height: 150px;
}

/* 不同颜色 */
.circle-blue {
	background: linear-gradient(135deg, rgba(100, 200, 255, 0.8), rgba(50, 150, 250, 0.4));
}

.circle-pink {
	background: linear-gradient(135deg, rgba(255, 150, 200, 0.8), rgba(230, 100, 180, 0.4));
}

.circle-green {
	background: linear-gradient(135deg, rgba(150, 255, 200, 0.8), rgba(100, 230, 180, 0.4));
}

.circle-purple {
	background: linear-gradient(135deg, rgba(200, 150, 255, 0.8), rgba(180, 100, 230, 0.4));
}

.circle-teal {
	background: linear-gradient(135deg, rgba(100, 255, 230, 0.8), rgba(50, 200, 220, 0.4));
}

/* 动画效果 */
@keyframes float {

	0%,
	100% {
		transform: translate(0, 0) scale(1) rotate(0deg);
	}

	25% {
		transform: translate(100px, 50px) scale(1.2) rotate(20deg);
	}

	50% {
		transform: translate(-100px, -80px) scale(0.8) rotate(40deg);
	}

	75% {
		transform: translate(80px, -100px) scale(1.1) rotate(60deg);
	}
}

@keyframes pulse {

	0%,
	100% {
		transform: scale(1);
		opacity: 0.7;
	}

	50% {
		transform: scale(1.3);
		opacity: 0.5;
	}
}

@keyframes rotate {
	from {
		transform: rotate(0deg);
	}

	to {
		transform: rotate(360deg);
	}
}

/* 为不同圆形应用不同动画 */
.circle:nth-child(1) {
	top: 10%;
	left: 15%;
	animation-name: float;
	animation-delay: 0s;
}

.circle:nth-child(2) {
	top: 30%;
	right: 20%;
	animation-name: float;
	animation-delay: -3s;
}

.circle:nth-child(3) {
	bottom: 20%;
	left: 25%;
	animation-name: pulse;
	animation-duration: 12s;
}

.circle:nth-child(4) {
	top: 40%;
	left: 40%;
	animation-name: float;
	animation-delay: -6s;
}

.circle:nth-child(5) {
	bottom: 15%;
	right: 15%;
	animation-name: pulse;
	animation-duration: 10s;
	animation-delay: -4s;
}

.circle:nth-child(6) {
	top: 20%;
	right: 40%;
	animation-name: rotate;
	animation-duration: 30s;
}

/* 优化进度条 */
.progress-container {
	width: 100%;
	background-color: #e9ecef;
	border-radius: 20px;
	margin: 30px 0;
	height: 12px;
	overflow: hidden;
}

.progress-bar {
	height: 100%;
	background: linear-gradient(90deg, #4361ee, #7209b7);
	border-radius: 20px;
	width: 0%;
	transition: width 0.5s ease;
}

.progress-text {
	font-weight: 600;
	color: #4361ee;
	margin-top: 10px;
	font-size: 18px;
}

/**/
.ai-tools-card {
	position: relative;
	z-index: 2;
	text-align: left;
}

.ai-tools-card .d-flex {
	display: flex;
}

.ai-tools-card .form-group {
	text-align: left;
}

.ai-tools-card .form-control-custom {
	margin-bottom: 5px;
}

.brandx {
	color: #4361ee;
	font-size: 28px;
	height: 60px;
	line-height: 60px;
	font-weight: 400;
}

.card-elevated {
	background: var(--card-bg);
	border-radius: 18px;
	box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
	border: none;
	transition: all 0.3s ease;
	overflow: hidden;
	backdrop-filter: blur(10px);
}

.card-header {
	/*background: linear-gradient(90deg, rgba(67, 97, 238, 0.3) 0%, rgba(114, 9, 183, 0.3) 100%);*/
	border-bottom: 1px solid rgba(203, 213, 225, 0.3);
	padding: 22px 30px;
	font-weight: 700;
	color: #4361ee;
	font-size: 1.25rem;
}

.form-control-custom {
	border: 2px solid #dee2e6;
	border-radius: 10px;
	padding: 14px 20px;
	font-size: 16px;
	height: auto;
	transition: all 0.3s;
	background: white;
}

.form-control-custom:focus {
	border-color: #4361ee;
	box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.2);
}

.btn-primary-custom {
	background: linear-gradient(120deg, #4361ee 0%, #7209b7 100%);
	border: none;
	padding: 16px 32px;
	font-size: 18px;
	font-weight: 600;
	letter-spacing: 0.5px;
	transition: all 0.3s;
	box-shadow: 0 6px 20px rgba(67, 97, 238, 0.35);
	color: white;
}

.btn-primary-custom:hover {
	box-shadow: 0 10px 30px rgba(67, 97, 238, 0.5);
	color: white;
}

.invalid-feedback {
	display: none;
	width: 100%;
	margin-top: .25rem;
	font-size: .875em;
	color: #dc3545;
}

.is-invalid~.invalid-feedback,
.is-invalid~.invalid-tooltip,
.was-validated :invalid~.invalid-feedback,
.was-validated :invalid~.invalid-tooltip {
	display: block;
}

@keyframes spin {
	0% {
		transform: rotate(0deg);
	}

	100% {
		transform: rotate(360deg);
	}
}

.purpose-hint {
	font-size: 0.9rem;
	color: #6c757d;
	margin-top: 5px;
}

@keyframes pulse {
	0% {
		opacity: 0.5;
	}

	50% {
		opacity: 1;
	}

	100% {
		opacity: 0.5;
	}
}

.loading-spinner {
	width: 60px;
	height: 60px;
	border: 6px solid rgba(67, 97, 238, 0.2);
	border-top: 6px solid #4361ee;
	border-radius: 50%;
	animation: spin 1s linear infinite;
	margin: 0 auto;
}

.loading-text {
	animation: pulse 1.5s infinite;
}

.loading-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(255, 255, 255, 0.95);
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	z-index: 9999;
	opacity: 0;
	visibility: hidden;
	transition: all 0.3s ease;
}

.loading-overlay.active {
	opacity: 1;
	visibility: visible;
}

.loading-content {
	text-align: center;
	max-width: 600px;
	padding: 0 20px;
}

.loading-stages {
	margin-top: 30px;
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 10px;
}

.stage-badge {
	background: rgba(67, 97, 238, 0.1);
	color: #6c757d;
	padding: 8px 10px;
	border-radius: 30px;
	font-size: 14px;
	font-weight: 500;
	transition: all 0.3s ease;
}

.stage-badge.active {
	background: #4361ee;
	color: white;
}