:root {
    --navy: #002347;   /* JMSDF ディープネイビー */
    --gold: #b08d57;   /* 落ち着いたゴールド */
    --gray: #f4f4f4;
    --text: #333;
}

body {
    margin: 0;
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--gray);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--navy);
    color: #fff;
    padding: 1.5rem 0;
}

header h1 { margin: 0; font-size: 1.25rem; }
header a { color: #fff; text-decoration: none; }
header span { font-size: 0.9rem; font-weight: normal; margin-left: 10px; }

/* Main Content */
.page-title {
    text-align: center;
    border-bottom: 3px solid var(--navy);
    display: inline-block;
    margin: 2rem auto;
    width: 100%;
    padding-bottom: 10px;
}

.contact-card {
    background: #fff;
    padding: 40px;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.contact-info {
    text-align: center;
    padding: 30px;
    background: #fafafa;
    border: 1px solid #ddd;
    margin: 20px 0;
}

.dept { font-weight: bold; font-size: 1.2rem; color: var(--navy); }

.tel-link {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--navy);
    text-decoration: none;
    margin: 10px 0;
}

.tel-link:hover { opacity: 0.7; }
.ext { margin-top: -10px; font-weight: bold; color: #666; }

.fax-info { font-size: 1.4rem; font-weight: bold; margin-bottom: 20px; }
.fax-info i, .tel-link i { color: var(--gold); }

.hours { font-size: 0.9rem; border-top: 1px solid #ddd; padding-top: 15px; }

.notes { font-size: 0.8rem; color: #666; background: #eee; padding: 15px; }

/* Buttons */
.action-area { text-align: center; margin-top: 30px; }
.btn-back {
    display: inline-block;
    padding: 10px 30px;
    background: var(--navy);
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: 0.3s;
}
.btn-back:hover { background: var(--gold); }

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    font-size: 0.8rem;
    color: #888;
}