text style

Hi everyone, I am looking for a specific style for my text. I want to replace colon (:) after the first word in every paragraph and add a pink background to the first word, like in the attached image. I want to do this using paragraph nested style to automate it. How to do it? I am also attaching a plain InDesign file with the text. If someone can help or do it for me, I would really appreciate it. Thank you!

text:

 Prana : Promotes inner energy and relaxation by integrating mindful affirmations with poses.
Surya : A dynamic practice combining energetic sequences and breath synchronization.
Heat Flow : Centers on performing 26 structured poses in a heated room to improve flexibility.
Calm : Focuses on controlled breathing and gentle movements, perfect for beginners.
Align : Emphasizes proper posture using supports; poses are held longer for focus.
Shakti : Combines dynamic breathwork, mantras, and movements to channel internal energy.
Energy Boost : An intense routine designed to generate warmth and enhance stamina.
Self Path : Aids individuals in their personal journeys through spiritual growth and awareness.
Harmony : Merges mindful breathing, light exercises, and vegetarian principles for balance.
Restore : Targets holistic healing across physical, mental, and spiritual dimensions for specific conditions.
Gentle Flow : A calming yet transformative practice pairing gentle poses with rhythmic breathing.
Rhythm Yoga : Fuses smooth transitions between poses with breathing, creating a steady flow.
Fitness Blend : Tailored for modern health enthusiasts, combining strength, agility, and flexibility.