#scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    width: 100vw;
    background: linear-gradient(90deg,
        #ffd6ec, /* pastel red */
        #ffeecf, /* pastel orange */
        #d4f8e8, /* pastel yellow */
        #c7eaff, /* pastel green */
        #e0d6ff, /* pastel blue */
        #ffd6ec, /* pastel purple */
        #ffd6ec  /* loop pastel red */
    );
    background-size: 100% 100%;
    z-index: 9999;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: width 0.2s cubic-bezier(.4,2,.6,1);
}