.slide-banner__index .swiper-slide img {
	width: 100%;
	/* height: calc(100vh - 166px); */
	/* object-fit: unset; */
}

.section-banner__home {
	position: relative;
}

.section-banner__home::after {
	content: "";
	width: 100%;
	height: 20%;
	background-image: url(../images/after-banner-index.png);
	background-repeat: no-repeat;
	background-size: cover;
	position: absolute;
	bottom: -1px;
	left: 0;
	z-index: 1;
}

.section-banner__home .container {
	position: absolute;
	top: 0;
	left: 50%;
	-webkit-transform: translateX(-50%);
	transform: translateX(-50%);
	z-index: 1;
	height: 100%;
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-align: center;
	-ms-flex-align: center;
	align-items: center;
}

.section-banner__home .ct-text .title-big {
	font-size: 6rem;
}

.service__index {
	background: #ffffff;
	border-radius: 88px;
	overflow: hidden;
	max-width: 48.1875rem;
	margin-left: auto;
	margin-right: auto;
}

.service__index .nav-item {
	-webkit-box-flex: 1;
	-ms-flex: 1;
	flex: 1;
}

.service__index .nav-item .nav-link {
	font-size: 1.25rem;
	background: none;
	color: #a0aec0;
	font-family: "Quicksand_Bold";
	display: block;
	width: 100%;
	white-space: nowrap;
	border-radius: 88px;
}

.service__index .nav-item .nav-link.active {
	background: #fcaf17;
	color: #fff;
}

.item-service__index {
	position: relative;
	height: 100%;
	padding: 0 1.25rem;
}

.item-service__index:hover .content-service {
	box-shadow: 0 4px 10px rgba(0, 0, 0, .3);
	transition: .3s;
}

.item-service__index .head-title {
	background-repeat: no-repeat;
	background-size: 100% 100%;
	padding: 0.8125rem 0.9375rem 1.875rem;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1;
}

.item-service__index .content-service {
	background: #fff;
	padding: 6.25rem 1.875rem 1.875rem;
	border-radius: 1rem;
	height: 100%;
	transition: .3s;
}


.list-service__item li:not(:last-child) {
	margin-bottom: 1.25rem;
}

.list-service__item li .icon {
	width: 2.25rem;
	height: 2.25rem;
	flex-shrink: 0;
	margin-right: 1.25rem;

}

.list-service__item li .icon img {
	width: 100%;
	height: 100%;
	-o-object-fit: scale-down;
	object-fit: scale-down;
}

.section-test-kid {
	padding-top: 13.6875rem !important;
}

.section-test-kid .image-relative {
	position: absolute;
	right: 0;
	top: 4rem;
	z-index: inherit;
	pointer-events: none;
	width: 38.3%;
	height: 21.5%;
}

.section-test-kid::before {
	content: "";
	width: 9%;
	height: 12%;
	background-image: url(../images/clound.png);
	background-repeat: no-repeat;
	background-size: contain;
	position: absolute;
	top: 9.0625rem;
	left: 5%;
	z-index: inherit;
	pointer-events: none;
}


.document-main {
	margin-bottom: 0.9375rem;
	padding-bottom: 0.9375rem;
	border-bottom: 1px solid #a0d9f4;
}

.document-main .img {
	width: 13rem;
	height: 9.3125rem;
	-ms-flex-negative: 0;
	flex-shrink: 0;
	background-color: #fff;
	border-radius: 16px;
	overflow: hidden;
	margin-right: 1.5rem;
}

.document-main .img img {
	width: 100%;
	height: 100%;
	-o-object-fit: unset;
	object-fit: unset;
}

.document-main .ct-text {
	-webkit-box-flex: 1;
	-ms-flex: 1;
	flex: 1;
}

.list-doc__link {
	padding-bottom: 0.9375rem;
	margin-bottom: 0.625rem;
	border-bottom: 1px solid #a0d9f4;
}

.list-doc__link li {
	padding-left: 1rem;
	position: relative;
}

.list-doc__link li:not(:last-child) {
	margin-bottom: 0.4375rem;
}

.list-doc__link li::before {
	content: "";
	width: 0.5rem;
	height: 0.5rem;
	border-radius: 100%;
	background: #fcaf17;
	position: absolute;
	top: 0.5rem;
	left: 0;
	z-index: inherit;
	pointer-events: none;
}

.list-doc__link li a:hover,
.list-doc__link li a:focus {
	color: #073392;
	text-decoration: underline !important;
}

.slide-fun-prize .swiper-slide {
	height: auto;
}

.item-fun-prize {
	border: 1px solid #e2e8f0;
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
	border-radius: 16px;
	overflow: hidden;
	height: 100%;
	display: flex;
	flex-direction: column;
	background-color: #fff;
}

.item-fun-prize .img {
	padding-top: 76%;
}

.item-fun-prize .ct-text {
	padding: 1.5625rem 1.5625rem 0.9375rem;
	height: 100%;
	display: flex;
	flex-direction: column;
}

.item-fun-prize .ct-text .bottom {
	margin-top: auto;
}

.item-fun-prize .total-question {
	gap: 0.5rem;
}

.item-fun-prize .total-question img {
	width: 1.25rem;
	height: 1.25rem;
	-o-object-fit: scale-down;
	object-fit: scale-down;
}

.item-fun-prize .btn {
	min-height: 2rem;
	color: #4A5568;
}

.item-fun-prize .btn:hover,
.item-fun-prize .btn:focus {
	color: #fff;
}

.item-fun-prize .btn:hover img,
.item-fun-prize .btn:focus img {
	-webkit-filter: brightness(100);
	filter: brightness(100);
}

.slide-fun-prize .btn-yellow__all {
	width: -webkit-fit-content;
	width: -moz-fit-content;
	width: fit-content;
	margin-left: auto;
	margin-right: auto;
	margin-top: 1.875rem;
}

.section-statis__index {
	padding: 3.75rem 0;
}

.intro-math__index .title-big__all {
	margin-bottom: 0.938rem;
}

.image-intro__home img {
	max-width: 26.875rem;
}

.intro-math__index .title-big__all {
	position: relative;
	padding-bottom: 10px;
}

.intro-math__index .title-big__all::before {
	content: "";
	width: 150px;
	height: 3px;
	background: #073392;
	position: absolute;
	bottom: 0;
	left: 0;
	z-index: inherit;
	pointer-events: none;
}

#video-tab {
	background: #ebebeb;
}

.item-video__index {
	height: 100%;
	background-color: #fff;
	transition: .3s;
	padding: 10px;
	display: flex;
	flex-direction: column;
	border-radius: 10px;
	overflow: hidden;


}

.item-video__index:hover {
	box-shadow: 0 4px 10px rgba(0, 0, 0, .3);
	transition: .3s;
}

.item-video__index .img {
	padding-top: 60%;
}

.item-video__index .btn {
	margin-top: auto;
	width: fit-content;
}

.item-video__index .price {
	color: #f1582e;
}

@media(min-width: 992px) {
	/*.intro-math__index {
		padding-right: 80px;
	}*/
}

@media (max-width: 1651px) {
	.service__index .nav-item .nav-link {
		font-size: 1rem;
	}

	.item-fun-prize .ct-text {
		padding: 0.625rem;
	}

	.section-banner__home .ct-text .title-big {
		font-size: 1.875rem;
	}

	.item-service__index {
		padding: 0 0.938rem;
	}

	.item-service__index .content-service {
		padding: 4.063rem 1.25rem 1.25rem;
	}

	.list-service__item li .icon {
		width: 1.875rem;
		height: 1.875rem;
	}

	.mb-40 {
		margin-bottom: 1.25rem;
	}
}

@media (max-width: 1199px) {
	.item-service__index .content-service {
		padding: 4.6875rem 1.25rem 1.25rem;
	}

	.section-banner__home .ct-text .title-big {
		font-size: 1.875rem;
	}

	.slide-banner__index .swiper-slide img {
		height: auto;
	}

	.section-banner__home::after {
		display: none;
	}

}

@media (max-width: 991px) {

	.slide-banner__index .swiper-slide img {
		height: auto;
	}

	.service__index .nav-item .nav-link {
		font-size: 0.875rem;
	}


	.list-service__item li .icon {
		margin-right: 0.9375rem;
	}

	.list-service__item li img {
		width: 1.5625rem;
		height: 1.5625rem;
	}

	.section-test-kid {
		padding-top: 8.6875rem !important;
	}
}

@media (max-width: 767px) {
	.section-banner__home .ct-text .title-big {
		font-size: 1.5625rem;
	}

	.section-test-kid::after,
	.section-test-kid::before {
		display: none;
	}

	.section-test-kid {
		padding-top: 1.25rem !important;
	}
}

@media (max-width: 575px) {
	.service__index {
		border-radius: 0;
		background: none;
	}

	.service__index .nav-item {
		-webkit-box-flex: 0;
		-ms-flex: 0 0 50%;
		flex: 0 0 50%;
	}

	.item-service__index {
		padding: 0 1rem;
	}

	.document-main .img {
		width: 9.375rem;
		height: auto;
	}

	.section-banner__home::after {
		display: none;
	}

	.intro-math__index .title-big__all span {
		font-size: 1.25rem !important;
	}

	.document-main .img {
		margin-right: 10px;
	}

	.item-video__index {
		box-shadow: 0 4px 10px rgba(0, 0, 0, .3);
		border-radius: 5px;
		padding: 5px;
	}

	.item-video__index .mb-10 {
		margin-bottom: 3px;
	}

	.item-video__index .sort_content {
		font-size: 12px;
	}
}


.bg-blue {
	background: hsla(196, 100%, 47%, 0.45) !important;
}

.box-tutorial {
	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
}

.box-tutorial .c-img {
	padding-top: 56.35%;
}

.box-tutorial .c-img iframe {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
}