header{width:100%;height:60px;background-color:#fffc;position:fixed;top:0;left:0;z-index:1000;font-family:"Noto Serif JP",serif}.header-container{max-width:100%;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:60px}.header-left,.header-right{display:flex;align-items:center}.header-left{font-size:20px;margin-left:25px;display:block}header a{text-decoration:none;color:#000000b3;padding:0 10px;white-space:nowrap}header a:hover{color:#000}.header-right{font-size:15px;margin-right:30px;display:block}.header-right a{margin:0 30px}.hamburger-menu{cursor:pointer;display:none;margin-right:30px}.hamburger-menu a{color:#000;font-size:20px}.mobile-menu{display:none;position:absolute;background-color:#ffffffe6;width:100%;top:60px;left:0;z-index:1200}.mobile-menu.open{display:block}.mobile-menu a{color:#000000e6;padding:12px 50px;text-decoration:none;display:block;white-space:nowrap;transition:background-color .2s;text-align:right}.mobile-menu a:hover{background-color:#ededed}@media (max-width: 1200px){.hamburger-menu,.mobile-menu{display:block}.header-right{display:none}}