.main_visual_scroll { position: absolute; bottom: 0px; right: 210px; z-index: 10; }
.main_visual_scroll .area_wrap { display: flex; align-items: center; }
.main_sc_box { position: relative; display: flex; flex-direction: column; align-items: center; }
.main_sc_box .sc_down { display: block;  color: #fff;  font-weight: 400;  font-size: 11px;  letter-spacing: 2px; writing-mode: vertical-rl; text-orientation: mixed;margin-bottom: 20px;}
.main_sc_box .sc_line {  overflow: hidden;  position: relative;  display: block; width: 1px;  height: 120px;  background-color: rgba(255, 255, 255, 0.3); }
.main_sc_box .sc_line:after {  position: absolute;  top: 0; left: 0;  width: 1px; height: 40px;  background-color: #fff; content: "";  animation: line-over 2s ease-in-out infinite; }

@keyframes line-over {
    0% { transform: translateY(0); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(80px); opacity: 0; }
}