.isg-header{--isg-pale:#edf7fb;--isg-line:#e5eaed;--isg-space-24:24px;--font-logo:"Noto Serif JP",serif;--radius-small:6px;--shadow-card:0 1px 3px #1f333d12;font-family:"Noto Sans JP",sans-serif;color:#202427;font-weight:400;line-height:1.65}.isg-header *{box-sizing:border-box}.isg-header a{color:inherit;text-decoration:none}.isg-header img{display:block}.isg-header summary{font:inherit}
.isg-header{background:var(--isg-pale)}.isg-header-inner{max-width:var(--container-width);margin:auto;height:70px;padding:8px var(--isg-space-24);display:flex;align-items:center;justify-content:space-between}.isg-logo{display:flex;width:265px;height:54px;gap:9px;align-items:center;flex-shrink:0}.isg-brand-mark{width:31px;height:48px}.isg-brand-type{display:flex;flex-direction:column;width:219px;height:48px}.isg-brand-type>span{font:500 32px/38px var(--font-logo)}.isg-brand-type>small{font-size:9px;line-height:12px;white-space:nowrap}.isg-desktop-nav{display:flex;align-items:center;gap:26px;width:570px;height:42px;flex-shrink:0;font-size:11px;font-weight:500;line-height:18px}.isg-desktop-nav a{flex-shrink:0}.isg-desktop-nav a:nth-child(1){width:38px}.isg-desktop-nav a:nth-child(2){width:65px}.isg-desktop-nav a:nth-child(3){width:88px}.isg-desktop-nav a:nth-child(4){width:30px}.isg-desktop-nav a:nth-child(5){width:57px}.isg-desktop-nav a:nth-child(6){width:40px}.isg-desktop-nav a:nth-child(7){width:55px}.isg-header-tools{display:flex;width:137px;height:44px;gap:12px;justify-content:flex-end;align-items:center;flex-shrink:0}.isg-header-tools>a,.isg-menu summary{display:flex;align-items:center;justify-content:center;width:44px;height:44px}.isg-header-tools>a img{width:18px;height:18px}.isg-menu{position:relative}.isg-menu summary{list-style:none;cursor:pointer}.isg-menu summary img{width:23px;height:17px}.isg-menu summary::-webkit-details-marker{display:none}.isg-menu nav{position:absolute;z-index:5;right:0;top:44px;width:220px;padding:12px;background:white;border:1px solid var(--isg-line);box-shadow:var(--shadow-card);border-radius:var(--radius-small)}.isg-menu nav a{display:block;padding:12px;font-size:14px}.isg-menu nav a:hover{background:var(--isg-pale)}
.isg-header-inner{max-width:1960px}.isg-brand-mark{object-fit:contain;flex-shrink:0}.isg-menu nav{max-height:calc(100dvh - 150px);overflow:auto}
@media(max-width:1100px){.isg-desktop-nav{display:none}.isg-header-inner{padding-inline:20px}.isg-header-tools{width:auto}}
@media(max-width:600px){.isg-header-inner{height:64px;padding:5px 12px}.isg-logo{width:auto}.isg-brand-type{width:auto}.isg-brand-type>span{font-size:27px}.isg-brand-type>small{font-size:8px}.isg-brand-mark{width:26px;height:40px}.isg-header-tools{gap:4px}}

.isg-menu-contact{margin-top:20px;padding-top:16px;border-top:1px solid #e5eaed}.isg-menu nav a.isg-menu-contact-button{display:flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border-radius:6px;background:#275f53;color:#fff;font-weight:500;text-align:center}.isg-menu nav a.isg-menu-contact-button:hover{background:#1f4d43}.isg-menu-contact-button:focus-visible{outline:2px solid #275f53;outline-offset:3px}