.nav-guide{position:relative;display:inline-flex;align-items:center;}
.nav-guide-title{margin:0 15px;padding:0;border:0;background:transparent;color:#333;font:inherit;line-height:1.8;cursor:pointer;white-space:nowrap;}
.nav-guide-title::after{content:" ▾";font-size:12px;color:#6f8296;}
.nav-guide-menu{position:absolute;z-index:1000;top:calc(100% + 10px);left:50%;display:none;width:210px;padding:8px;background:#fff;border:1px solid #dcecff;border-radius:8px;box-shadow:0 12px 28px rgba(0,51,102,.16);transform:translateX(-50%);}
.nav-guide-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px;}
.nav-guide-menu a{display:block!important;margin:0!important;padding:9px 12px!important;border-radius:5px;color:#26384b!important;font-size:15px!important;line-height:1.45;text-align:left;white-space:nowrap;}
.nav-guide-menu a:hover,.nav-guide-menu a:focus{background:#edf6ff;color:#0066cc!important;}
.nav-guide:hover .nav-guide-menu,.nav-guide:focus-within .nav-guide-menu{display:block;}

@media(max-width:768px){
  .header{width:100%!important;max-width:100vw!important;display:grid!important;grid-template-columns:minmax(0,1fr) 58px!important;align-items:center!important;padding:14px!important;overflow:visible!important;}
  .header .logo{min-width:0;max-width:100%;font-size:22px!important;white-space:normal;overflow-wrap:anywhere;}
  .header .menu-toggle{display:inline-flex!important;position:relative;z-index:2;align-items:center;justify-content:center;width:58px;min-width:58px;min-height:40px;margin:0!important;}
  .header .nav{grid-column:1/-1;width:100%!important;margin-top:12px!important;}
  .header .nav.is-open{display:flex!important;flex-direction:column;align-items:stretch;}
  .nav-guide{display:block;width:100%;border-bottom:1px solid #f0f4f8;}
  .nav-guide-title{display:block;width:100%;margin:0;padding:12px 4px;text-align:left;color:#0066cc;font-weight:bold;cursor:default;}
  .nav-guide-title::after{content:"";}
  .nav-guide-menu{position:static;display:block;width:100%;padding:0 0 6px 14px;border:0;border-radius:0;box-shadow:none;transform:none;background:#f7fbff;}
  .nav-guide-menu a{padding:10px 12px!important;border-bottom:1px solid #e5eef8;border-radius:0;white-space:normal;}
  .nav-guide-menu a:last-child{border-bottom:0;}
}