Update cd rendering mechanis, fix hero colors

hshassets/assets/sass/_init.scss

hshassets/assets/sass/cd/f1.scss

hshassets/assets/sass/cd/f2.scss

hshassets/assets/sass/cd/f3.scss

hshassets/assets/sass/cd/f4.scss

hshassets/assets/sass/cd/f5.scss

hshassets/assets/sass/cd/service.scss

hshassets/assets/sass/cd/zsw.scss

hshassets/assets/sass/corporate_design.scss

hshassets/assets/sass/general.scss

hshassets/management/commands/buildassets.py

hshassets/static/hshassets/styles.css

hshassets/static/hshassets/styles.min.css

hshassets/templates/hshassets/layout/hero.html

hshassets/utils.py