/* 고객센터(공지/FAQ/QnA) 탭 스타일 */
.tab-menu {
    display: flex;
    gap: 16px;
    justify-content: flex-start;
    margin-left: 0;
    position: relative;
    z-index: 2;
    width: 100%;
    background: transparent;
}
.tab-btn {
    padding: 12px 40px;
    border-radius: 6px 6px 0 0;
    background: #f5f5f5;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    border: 1.5px solid #e0e0e0;
    border-bottom: none;
    transition: background 0.2s, color 0.2s;
    font-size: 1.08rem;
    margin-bottom: -1.5px;
}
.tab-btn.active {
    background: #fff;
    color: #007bff;
    border-bottom: none;
    font-weight: bold;
    z-index: 3;
    position: relative;
    box-shadow: 0 2px 0 0 #fff;
}
.tab-btn:hover {
    color: #007bff;
    background: #eaf3ff;
}
.tab-divider {
    width: 100%;
    height: 0;
    border-bottom: 2px solid #e0e0e0;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
    top: 0;
}