.df {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	align-items: center;
}

.ab01_video iframe{
    width:100%;
    height:340px;
}
.ab01_txt .idx-ttl{
    text-align:start;
}
.b02_txt{
    text-align: center;
    font-size: 22px;
    padding: 10px 20px;
}
.b02_item {
    width: calc(100% / 3 - 0px);
    position: relative;
    padding: 0 40px;
}

.b02_item:not(:last-child):before {
    content: "";
    position: absolute;
    top: 29%;
    right: 0;
    width: 2px;
    height: 50%;
    background: #c1c1c1;
}
.b02_itm_img {
    margin: 0 0 20px;
    text-align: center;
}
.b02_itm_img img {
    margin: 0 auto;
}
.b02_itm_ttl {
    font-size: 26px;
    text-transform: uppercase;
    line-height: 1.5em;
    font-weight: 800;
    text-align: center;
    margin-bottom: 10px;
}
.b02_itm_txt {
    font-size: 14px;
    line-height: 1.4;
}
.b02_list {
    display: flex;
}
.ab03{
    padding: 50px 0;
}
.ab03_list {display: flex;flex-wrap:wrap;}
.ab03_itm {
    width: calc(100% / 3 - 30px);
	margin: 0 30px 0 0;
}
.ab03_itm:nth-child(4n){margin-right:0;}

.ab03_itm a {
    text-decoration: none;
    display: block;
    color: #000;
    transition: all 0.3s;}

.ab03_itm_img {overflow: hidden;margin: 0;position: relative;}
.ab03_itm_img img {width: 100%;transition: all 0.5s;}

.ab03_txt{
    opacity:0;
    position: absolute;
    bottom: 0;
    background: var(--mcolor);
    width: 100%;
    text-align: center;
    padding: 5px;transition: all 0.5s;
}
.ab03_itm_ttl {font-size: 19px;font-weight: 700;line-height: 1.5em;margin: 10px 0;text-align:center;}
.ab03_itm_des {margin: 0;font-size: 16px;color: #fff;}
/*.ab03_item a:hover {color: #fcb01c;}*/
.ab03_itm a:hover .ab03_itm_img img {	transform: scale(1.1);}
.ab03_itm a:hover .ab03_txt{opacity:1;}
.ab01_txt ul li{
	list-style: disc;
	margin-left: 40px;
}
.ab04_main {
	display: grid;
    grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}
.ab04_main .itm img {
    width: 80px;
}
.b06_ttl{
    text-align:start;
}
.ab04{
	padding: 50px 0;
}
.ab04_main .itm{
    padding: 30px 20px;
    box-shadow: #07376c61 0px 2px 8px 0px;
    border-radius: 10px;
    margin-bottom: 20px;
    height: 100%;
    transition: all 0.3s ease; /* thêm */
}

.ab04_main .itm:hover{
    transform: translateY(-6px);
    box-shadow: #07376c80 0px 8px 20px 0px;
}

.ab04_main .itm .ab04_img{
    width:17%;
	margin: 0;
	text-align: center;
}
.ab04_ttl,ab04_img{
    font-size: 18px;
	text-transform: uppercase;
	line-height: normal;
	font-weight: 600;
	margin-bottom: 5px;
}
.ab04_main .itm .ab04_txt{
    width:83%;
	padding-left: 20px;
}
    .ab04_main .itm .ab04_txt .ab04_des {
		margin: 0;
    }

@media screen and (max-width: 768px) {
	.ab01{padding: 30px 0;}
    .ab01_video,.ab01_txt,.b02_item{
        width:100%;
    }
    .b02_item {
        padding:0 0;
    }
	
        .b02_item:not(:last-child):before {
            content:none;
        }
        .b02_list {
            flex-wrap: wrap;
        }
		.ab03_itm {
			width: 100%;
			margin: 0;
		}
		.b02_itm_img img {
			width: 30%;
		}
		.ab04_main {
			grid-template-columns: repeat(1, 1fr);
		}
		.ab04_main .itm {
			width: 100%;
		}
		.ab04_main .itm .ab04_img {
        width: 33%;
    }
    .ab04_main .itm img {
        width: 80px;
    }
    .ab04_main .itm .ab04_txt {
        width: 67%;
    }
}