body {
    margin: 0;
    padding: 0;
    background-color: #082539;
    color: #FFFFFF;
    font-family: 'Trebuchet', sans-serif;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #082539;
    padding: 15px 30px;
    border-bottom: 3px solid #d9a022;
}

header img {
    height: 70px;
    width: auto;
    margin: 0;
}

nav a {
    color: #d9a022;
    text-decoration: none;
    margin-left: 25px;
    font-size: 18px;
    font-weight: bold;
}

nav a:hover {
    background-color: #ffffff;
    padding: 6px 10px;
    border-radius: 6px;
}

.bann {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
}

.bann img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-bottom: 3px solid #d9a022;
}

.bann-title {
    font-family: Geneva, sans-serif;
    position: absolute;
    font-size: 140px;
    top: 25%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #d9a022;
}

.bann a{
    font-family: 'Trebuchet', sans-serif;
    background-color: #d9a022;
    color: #082539;
    border-radius: 4px;
    width: 120px;
    font-size: 27px;
    height: 50px;
    position: absolute;
    top: 65%; 
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}
.bann a:hover {
    background-color: #d9a022;
    padding: 6px 10px;
    border-radius: 6px;
}

h1 {
    text-align: center;
    font-size: 55px;
    color: #D29B2B;
}

hr {
    background-color: #d9a022;
    border: none;
    width: 20%;
    height: 3px;
    border-radius: 4px;
}

p {
    text-align: center;
    width: 70%;
    margin: 0 auto;
    font-size: 20px;
    padding: 25px 0;
    line-height: 35px;
}


.left {
    width: 50%;
    float: left;
    text-align: center;
    color: #d9a022;
    line-height: 15px;
}
.left h2{
    margin-bottom: 0;
    font-size: 1.7em;
}
.left p{
    line-height: 47px;
}

.right {
    width: 50%;
    float: right;
    color: #d9a022;
    line-height: 30px;
    font-size: 1.2em;
}
.right h2 {text-align: center;}



input[type="submit"] {
    display: block;
    background-color: #d9a022;
    border-radius: 4px;
    width: 80px;
    height: 40px;
    margin: 0 auto;
}

.item::after {
    content: "";
    display: block;
    clear: both;
}


.pres, .vice, .sec, .tres {
    width: 25%;
    float: left;
    text-align: center;
    display: flex;
    flex-direction: column; 
    align-items: center;
    background-color: #082539;
}

.pres img, .vice img, .sec img, .tres img {
    width: 80%; 
    height: 350px;
    margin-bottom: 10px; 
}

.pres h2, .vice h2, .sec h2, .tres h2 {
    color: #d9a022;
    margin-bottom: 0;
}

.pres p, .vice p, .sec p, .tres p {
    margin-top: 0;
}

.board::after {
    content: "";
    display: block;
    clear: both;
}

#slide_cont{
 box-shadow : 1px 1px 10px 1px silver;
 width      : 900px;
 height     : 505px;
 margin-top : 100px;
}

#slideshow_image {
 width  :   900px;
 height :   505px;
}

#prev_image, #next_image {
 width  :   40px;
 height :   40px;
}






footer {
    background-color: #082232;
    color: #d9a022;
    text-align: center;
    border-top: 3px solid #d9a022;
}