.contact-info {
    display: grid;
    /* 画面幅に合わせて1列・2列を自動切替 */
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    max-width: 1600px; /* 2つ並びの時に広がりすぎないサイズ */
    margin: 60px auto;
    padding: 0 20px;
}
@media (max-width: 1024px) {
    .contact-info {
        grid-template-columns: 1fr;
        padding: 0;
        margin: 15px auto;
    }
}
.contact-card {
    background: #fff;
    padding: 40px 30px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    border-top: 6px solid; 
    border-image-slice: 1;
}
.contact-card.student {
    border-image-source: linear-gradient(to right, #00b7ff, #776DE7);
}
.contact-card.organization {
    border-image-source: linear-gradient(to right, #776DE7, #e02cd1);
}
.for {
    font-size: 1.4rem;
    font-weight: bold;
    color: #222;
    margin-bottom: 5px;
}

.card-header p {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    color: #aaa;
    margin-bottom: 25px;
    letter-spacing: 0.1em;
}

.card-body p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 30px;
}

.form-btn {
    display: block;
    text-align: center;
    background: #222;
    color: #fff;
    padding: 15px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.form-btn:hover {
    background: #00b7ff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,183,255,0.3);
}

/* メールエリア */
.email-area {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.email-area .label {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.65rem;
    color: #999;
    margin-bottom: 8px;
}

.email-link {
    color: #222;
    font-weight: bold;
    text-decoration: none;
    font-size: 1rem;
    border-bottom: 2px solid #eee;
    transition: border-color 0.3s;
}

.email-link:hover {
    border-bottom-color: #e02cd1;
}