When a passenger suffers severe arterial bleeding (spunting, bright red blood) from a deep limb laceration, what is the primary immediate bleeding control method?

1. Apply direct pressure over the wound with a sterile dressing, compress the proximal arterial pressure point (近心端止血点), and apply a standardized tourniquet (止血带) proximal to the wound if direct pressure is insufficient
2. Apply pressure to the distal end (远心端) below the wound and wash with hot soapy water
3. Cover the wound with dirt or sand to absorb the blood
4. Wait for the blood to stop flowing naturally without touching the wound