.PamphletsSection{ margin:100px auto;}
.PamphletsSection > div{ width:90%; max-width:1300px; margin:auto;}
.PamphletsSection > div > ul{ display:flex; flex-wrap:wrap; gap:16px;}
.PamphletsSection > div > ul > li{ width:100%;}
.PamphletsSection > div img{ width:100%;}

.downbtnnav{ width:100%; display:inline-block; height:80px;}
.downbtnnav > a{ width:200px; border:2px solid #000; background-color:#fff; position:fixed; color:#000; height:78px; display:flex; right:0; bottom:0; justify-content:center; align-items:center; font-size:26px; font-weight:bold;}