@charset "utf-8";
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    height: 100%;
}
body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
}
header {
    background-color: #007bff;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 24px;
    font-weight: bold;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}
main {
    flex: 1;
    padding-top: 60px; /* ヘッダーの高さ分余白を作る */
}
section {
    text-align: center;
    margin-bottom: 150px;
}
p {
    margin: 10px;
}
.download {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 30px;
}
.download-button {
    display: inline-block;
    padding: 10px 20px;
    font-size: 18px;
    color: #fff;
    background-color: #007bff;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
}
.download-button:hover {
    background-color: #0056b3;
}
.version-history {
    text-align: left;
    max-width: 800px;
    margin: 30px auto;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.version-history h3 {
    text-align: center;
    color: #333;
}
.version-history ul {
    list-style-type: none;
    padding: 0;
}
.version-history li {
    margin: 10px 0;
    line-height: 1.6;
}
.version-history li p:first-of-type {
    text-align: center;
}
.red {
    color: #ff0000;
}
footer {
    background-color: #f4f4f4;
    font-size: 14px;
    color: #555;
    border-top: 1px solid #ccc;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
}
footer p {
    margin: 5px 0;
}
footer .company-name {
    font-weight: bold;
}
footer .produced {
    display: inline-flex;
    align-items: center; 
    gap: 10px; 
}
footer .produced img {
    height: 20px; 
    vertical-align: middle;
}
/* ホームへ戻るボタンのスタイル */
.home-button {
    display: inline-block;
    text-decoration: underline;
    color: #333;
    font-size: 16px;
    margin-bottom: 20px;
    margin-left: 50px;
}