/* 全体 */
body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background-color: #f4f7fb;
}

/* ヘッダー */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;

    background: linear-gradient(90deg, #0a192f, #0f2a44);
    color: white;

    padding: 0 40px;
    height: 70px;

    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* ロゴ */
.logo {
    font-size: 24px;
    font-weight: bold;
    color: #4da3ff;
    letter-spacing: 1px;
}

/* メニュー */
.menu {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

/* 各メニュー項目 */
.menu-item {
    position: relative;
}

/* メインメニュー */
.menu-item > a {
    display: block;
    padding: 22px 22px;

    color: #e6edf5;
    text-decoration: none;
    font-size: 15px;

    transition: background 0.2s, color 0.2s;
}

/* hover */
.menu-item > a:hover {
    background-color: #163a5f;
    color: #ffffff;
}

/* ドロップダウン */
.dropdown {
    display: none;

    position: absolute;
    top: 100%;
    left: 0;

    background-color: #ffffff;

    min-width: 240px;

    list-style: none;
    padding: 8px 0;
    margin: 0;

    border-top: 3px solid #2f6fdb;

    box-shadow: 0 6px 16px rgba(0,0,0,0.25);

    z-index: 1000;
}

/* dropdown項目 */
.dropdown li a {
    display: block;

    padding: 12px 18px;

    color: #0a192f;
    text-decoration: none;

    font-size: 14px;

    transition: background 0.2s, padding-left 0.2s;
}

/* dropdown hover */
.dropdown li a:hover {
    background-color: #edf3fb;
    padding-left: 24px;
    color: #1a4fa3;
}

/* hoverで表示 */
.menu-item:hover .dropdown {
    display: block;
}
/* footer */

.footer {

    display: flex;
    justify-content: space-between;

    background: #0a192f;
    color: white;

    padding: 40px 60px;

}

.footer-company {
    font-size: 22px;
    font-weight: bold;
}

.footer-address {
    margin-top: 10px;
    font-size: 14px;
    color: #cbd5e1;
}

.footer-credit {
    margin-top: 10px;
    font-size: 12px;
    color: #94a3b8;
}


.footer-links a {

    display: block;
    color: white;
    text-decoration: none;
    margin-bottom: 10px;

}

.footer-links a:hover {
    color: #4da3ff;
}


.footer-sns {
    margin-top: 20px;
}

.footer-sns a {

    color: white;
    font-size: 22px;
    margin-right: 15px;

}

.footer-sns a:hover {
    color: #4da3ff;
}