[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 0.9s;
    transition-timing-function: cubic-bezier(.25,.8,.25,1);
  }
  
  [data-aos].aos-animate {
    opacity: 1;
  }
  
  /* Fade up mềm */
  [data-aos="fade-up"] {
    transform: translateY(60px);
  }
  [data-aos="fade-up"].aos-animate {
    transform: translateY(0);
  }
  
  /* Fade left */
  [data-aos="fade-left"] {
    transform: translateX(60px);
  }
  [data-aos="fade-left"].aos-animate {
    transform: translateX(0);
  }
  
  /* Zoom blur */
  [data-aos="zoom-blur"] {
    transform: scale(.85);
    filter: blur(6px);
  }
  [data-aos="zoom-blur"].aos-animate {
    transform: scale(1);
    filter: blur(0);
  }
  
  /* Flip 3D mượt */
  [data-aos="flip-3d"] {
    transform: perspective(800px) rotateY(90deg);
  }
  [data-aos="flip-3d"].aos-animate {
    transform: perspective(800px) rotateY(0);
  }