#header { position:fixed; padding:4px 24px; z-index:3; }
#header #menuPc { margin-left:auto; gap:60px; }
#header #menuPc a { padding:20px; display:block; color:#fff; }
#header #other { margin-left:auto; }

#mainSection01 { height:100vh; }
#mainSection01 .item img { height:100vh; }
#mainSection01 .backBg { background-color:rgba(0,0,0,0.8); z-index:2; width:100%; height:100vh; left:0; top:0; }
#mainSection01 .backBg .text { height:100vh; }
#mainSection01 .backBg .text .txt1 { font-size:60px; font-weight:100; line-height:76px; }
#mainSection01 .backBg .text .txt2 { font-size:60px; margin-top:12px; }