Basic Gradient Connections

Detailed Description: This package introduces basic gradient colors for the first time (light red-dark red, light blue-dark blue), with 2 sets of gradient colors and 8 endpoints. The endpoints are randomly distributed. Players need to connect two endpoints of the same gradient series (light red to dark red, light blue to dark blue). The color of the connection will automatically match the gradient transition color. Connections cannot cross, and there is no time limit. This helps players understand the differences between gradient colors and lays the groundwork for more complex packages later on.