Advanced Gradient Color Connection

Detailed Description: Includes 3 sets of gradient colors (light green-medium green-dark green, light purple-medium purple-dark purple, light yellow-medium yellow-dark yellow). Each gradient set corresponds to 3 endpoints, for a total of 9 endpoints. Players must connect endpoints of the same gradient series in the order of “light → medium → dark.” The connection will automatically display the complete gradient effect. Lines cannot cross. A 2-minute time limit is set. After 5 errors, the game must be restarted, reinforcing gradient color recognition and path planning.