body {
    margin: 0;
    background-color: #dfd8ff;
}
#text_top{
    text-align: left;
    margin-left: 20px;
    color: #ff1f62;
}
.menu{
    display: flex;
    width: 100%;
}
.item{
    flex: 1;
    text-align: center;
    border: 2px solid #5ed4cb;
    font-size: clamp(11px,1.2vw,16px);
    color: blue;
    text-decoration: none;
    font-weight: bold;
    background-color: #bbeeea;
    border-right: 1px solid #04aab6;
    border-left: 1px solid #04aab6;
}
.item:hover{
    color: #8717f0;
    text-decoration: underline;
}
.now{
    border: 2px solid #ffa023;
    background-color: #fdd07c;
}
.zentai{
    font-size: 1.5rem;
}
.title{
    font-size: 1.5rem;
    font-weight: bold;
}
.box{
    font-size: 1rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-top: 0.5rem;
}
.img{
    width: 400px;
    height: auto;
    border: 1px solid #ccc;
    background: #f8f8f8;
}
.img:hover{
    filter: brightness(0.8);
}
.text table{
    border-collapse: collapse;
    width: 100%;
    background-color: #e5ffdd;
}
th, td {
    border: 1px solid #ccc;
    padding: 0.5rem;
    vertical-align: top;
}
th {
    background: #f0f0f0;
    text-align: left;
}

@media (max-width: 600px) {
    .box {
        flex-direction: column;
    }

    .excel-img {
        width: 100%;
        max-width: 300px;
    }
}