*{
            font-family: Arial, Helvetica, sans-serif;
        }
        .container{
                width: 100%;
                margin: auto;
        }
        .header{
            background: linear-gradient(to right,white 0%,white 30%,#97cff8 100%);
            display: flex;
            margin: auto;
            padding:15px;
        }
        .header-logo{
            max-width: 100%;
            width: 400px;
            display: flex;
            height: 100%;
        }
        .top-menu{
            padding-left: 30px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .top-menu div{
            padding: 20px 18px 20px;
            font-size: 24px;
            margin-left:auto;
            border-right: 1px transparent;
            font-weight: bold;
            line-height: 1;
            align-items: center;

            border-radius: 12px;
            transition: 0.2s;
        }
        .top-menu div a{
            text-decoration: none;
            display: block;
            transition: 0.2s;
        }
        .top-menu div:hover{
            background-color: darkblue;
        }
        .top-menu div:hover a{
            color: white;
        }
        .top-menu div a:active{
            text-decoration: none;
            color: white;
        }
        .top-menu div a:visited{
            text-decoration: none;
            color: darkblue;
        }
        .top-menu div a:hover{
            color:white;
            text-decoration: none;
        }
        .top-menu div:hover a:visited{
            color:white;
        }
        
        .buy-button{
            background-color: red;
            color:white;
            border: 1px solid red;
            padding: 8px 24px;
            margin-right: 40px;
            border-radius: 24px;
            font-size: 22px;
            margin-left: auto;
            display: inline-flex;
            align-self: center;
            gap: 8px;
            text-decoration: none;
            transition: 0.2s;
        }
        .buy-button:hover{
            text-decoration: none;
            transform: scale(1.05);
        }
        .buy-icon{
            height: 1.1em;
            width: auto;
            object-fit: contain;
        }
        .main{
            display: flex;
        }
        .content{
            flex:1;
        }
        .content-head{
            position: relative;
            display:flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 10px;
            width: 100%;
        }
        .content-head img{
            width: 100%;
            height: auto;
            display: block;
        }
        .btn-ld{
            position: absolute;
            bottom: 1%;
            left: 3%;
            background-color: red;
            color:white;
            text-decoration: none;
            font-size: 32px;
            padding: 10px 24px;
            border-radius: 20px;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
        }
        .btn-ld:hover{
            transform: scale(1.05);
        }
        .btn-ld2{
            position: absolute;
            bottom: 32%;
            right: 2%;
            background-color: red;
            color:white;
            text-decoration: none;
            font-size: 56px;
            padding: 30px 48px;
            border-radius: 20px;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 16px;
            border: 5px solid white;

            transition: 0.2s;
        }
        .btn-ld2:hover{
            transform: scale(1.05);
        }
        .buy-icon2{
            width: 18px;
            height: auto;
            display: inline-block;
            position: static;   
        }
        .content-head .buy-icon2{
            height: 1.1em;
            width: auto;
            object-fit: contain;
            display: inline-block;
            position: static;
        }
        .footer{
            background-color: #0d2e73;
            display: flex;
            margin: auto;
            padding:60px 30px;
            align-items: center;
            gap: 100px;
        }
        .footer-logo{
            max-width: 100%;
            width: 250px;
            display: flex;
            height: 100%;
            align-self: center;
        }
        .footer-menu{
            color:white;
            padding-left: 30px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-left: 80px;
            border-left: 2px solid white;
        }
        .footer-menu img{
            width: 45px;
            height: 45px;
            object-fit: contain;
        }
        .footer-menu div{
            display: flex;
            flex-direction: column;
            gap: 4px;
            font-size: 24px;
        }
        .footer-social{
            display: flex;
            align-items: center;
            gap:20px;
            padding-left: 80px;
            border-left: 2px solid white;
        }
        .footer-social a{
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            transition: 0.2s;
        }
        .footer-social a:hover{
            transform: scale(1.05);
        }
        .footer-social img{
            width: 50px;
            height: 50px;
            object-fit: contain;
        }

*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    width: 100%;
    scroll-behavior: smooth;
}
body {
    width: 100%;
    max-width: 100%;
    margin: 0;
    overflow-x: hidden;
}
.container {
    width: 100%;
    max-width: 100%;
}
img {
    max-width: 100%;
}
.header,
.footer,
.top-menu,
.content,
.content-head {
    min-width: 0;
}
.content-head img {
    max-width: 100%;
}
@media (max-width: 768px){
    .header {
        width: 100%;
        padding: 12px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
    }
    .header-logo {
        width: 120px;
        max-width: 38%;
        height: auto;
        display: block;
        flex: 0 1 auto;
    }
    .top-menu {
        flex: 1 1 100%;
        width: 100%;
        padding: 0;
        margin: 0;
        display: flex;
        flex-wrap: wrap;
        align-items: stretch;
        justify-content: center;
        gap: 4px;
        order: 3;
    }
    .top-menu div {
        flex: 0 1 auto;
        margin: 0;
        padding: 9px 8px;
        font-size: clamp(12px, 3.2vw, 16px);
        line-height: 1.15;
        text-align: center;
    }
    .top-menu div a {
        display: block;
        overflow-wrap: anywhere;
    }
    .buy-button {
        margin: 0 0 0 auto;
        padding: 8px 12px;
        font-size: 14px;
        gap: 6px;
        flex: 0 0 auto;
    }
    .buy-icon {
        height: 1em;
    }
    .main,
    .content {
        display: block;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
    .content-head {
        position: relative;
        display: block;
        width: 100%;
        max-width: 100%;
        margin: 0 0 10px;
        padding: 0;
    }
    .content-head > img {
        display: block;
        width: 100%;
        max-width: 100%;
        height: auto;
    }
    #congdung {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #congdung > img:nth-of-type(2) {
        position: static;
        width: 15%;
        height: auto;
        transform: none;
        margin: 10px auto;
    }
    .btn-ld {
        max-width: 50%;
        bottom: -7%;
        left: 3%;
        font-size: 8px;
        padding: 6px 10px;
        border-radius: 12px;
    }
    .btn-ld2 {
        max-width: 50%;
        bottom: 15%;
        right: 3%;
        font-size: 12px;
        padding: 10px 14px;
        gap: 8px;
        border-width: 2px;
        border-radius: 12px;
    }
    .content-head .buy-icon2 {
        height: 1em;
        width: auto;
        max-width: 1.2em;
    }
    .footer {
        width: 100%;
        max-width: 100%;
        padding: 24px 18px;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .footer-logo {
        width: 160px;
        max-width: 70%;
        height: auto;
        display: block;
    }
    .footer-menu {
        width: 100%;
        padding: 0;
        margin: 0;
        border-left: 0;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .footer-menu img {
        width: 32px;
        height: 32px;
        flex: 0 0 32px;
    }
    .footer-menu div {
        min-width: 0;
        font-size: 16px;
        overflow-wrap: anywhere;
    }
    .footer-social {
        padding: 0;
        margin: 0;
        border-left: 0;
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .footer-social a,
    .footer-social img {
        width: 36px;
        height: 36px;
    }
}
@media (max-width: 380px) {
    .header {
        padding: 8px;
    }
    .header-logo {
        width: 95px;
    }
    .top-menu {
        gap: 2px;
    }
    .top-menu div {
        padding: 8px 5px;
        font-size: 12px;
    }
    .footer {
        padding: 20px 12px;
    }
}