html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Times New Roman', Times, serif;
            margin: 0;
            padding: 0;
            background-color: #5987a8;

        }

        .hero {
            text-align: center;
            padding: 60px 20px;
            color: rgb(255, 255, 255);
            border-radius: 8px;
            text-align: center;
            padding: 60px 20px;
            background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)),
                url("GioiThieu1.png") center/cover no-repeat;
            margin-top: 65px;

        }

        .hero h1 {
            font-size: 50px;
            margin-bottom: 10px;
        }

        .hero p {
            font-size: 25px;
        }

        .Nen {
            background-color: rgba(0, 0, 0, 0.5);
            display: inline-block;
            padding: 20px;
            border-radius: 8px;


        }

        .Chung h2 {
            color: #000000;
            font-size: 25px;
            border-bottom: 2px solid #000000;
            padding-bottom: 5px;
            font-weight: bold;
        }

        .Chung {
            margin-top: 25px;
            border: 1px solid black;
            border-radius: 5px;
            padding: 10px;
            font-size: 18px;
            background-color: #ffffff;
        }

        .Chung ul {
            margin-left: 20px;
        }

        .collection-grid {
            display: flex;
            justify-content: space-around;
            gap: 20px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .book-item {
            flex-basis: calc(33% - 20px);
            text-align: center;
            padding: 20px 10px ;
            border: 1px solid #ddd;
            border-radius: 8px;
            background: rgba(12, 8, 8, 0.1);
        }

        .book-item a {
            text-decoration: none;
        }

        .book-item img {
            object-fit: contain;
            max-height: 250px;
            margin-bottom: 10px;
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        footer {
            background-color: #0A314f;
        color: white;
        margin: 30px 15px auto auto;
        width: 100%;
        padding: 30px;

        }

        footer a {
            color: #ffffff;
            text-decoration: none;
        }
 .container {
        padding: 10px;
    }
    .header h1 {
        font-size: 1.5em;
    }
    .header p {
        font-size: 0.9em;
    }
    .majors-grid {
        display: block; /* Chuyển grid thành cột dọc */
    }
    .major-item {
        margin-bottom: 15px;
        padding: 10px;
    }
    .admissions-info ul, .admissions-info ol {
        padding-left: 20px;
    }
    footer .row {
        flex-direction: column; /* Chuyển footer thành cột */
        text-align: center;
    }
    footer .col-sm-1, footer .col-md-7, footer .col-md-4 {
        width: 100%;
        margin-bottom: 10px;
    }