WIFI electronic calendar

I. Background
This is our team's first collaborative project.
Team members and their responsibilities:
"Yang" provided software guidance
;
"Ming" handled the screen display and main functions;
"Tao" handled WiFi to obtain online weather and temperature data; and
"Ze" was responsible for the hardware.
 
II. Project Overview This project uses the STC8H as the main control chip, supplemented by an ESP8266-WiFi module to obtain necessary data from the internet. The DS1302 clock chip provides an external clock, displayed on a 12864 LCD screen. III. Physical Function Demonstration The four buttons on top, from left
to right, are: Start, Pause, Reset, and Mode Switch. Mode 1: Electronic calendar display: year, month, day, time, weather temperature, weekday, and lunar date. Mode 2: Timer, used for daily recording of time spent on tasks, convenient for time management (for example, timing instant noodles for 5 minutes, then draining water... adding seasoning... cooking... wow~ so delicious~ (✧∇✧)). Mode 3: Countdown, the software is set to one and a half hours, which is three and a half hours _(:з」∠)_ It's time to push myself and finish something within this time limit. Furthermore, since the board is powered by a lithium battery, a low-power mode is set after three seconds of inactivity to save power. This is a hardware "problem"—the backlight isn't controlled by an I/O port; brightness can only be controlled by a hardware knob. ＼(`Δ')／Software "problem": You still have the nerve to ask me how to achieve low power consumption without the screen turning off (ꐦÒ‸Ó) Other than that, why is my PCB diagram a back view?