.site-header,.site-header *,.site-header :after,.site-header :before{box-sizing:border-box}.site-header{background-color:var(--color-surface-elevated);width:100%}.site-header__top{align-items:center;display:flex;gap:var(--spacing-lg);justify-content:space-between;padding:var(--spacing-lg) var(--spacing-2xl)}.site-header__logo img{display:block;height:40px;width:auto}.site-header__actions{align-items:center;display:flex;gap:var(--spacing-md)}.site-header__btn{align-items:center;border-radius:var(--radius-full);display:inline-flex;font-family:Noto Sans JP,sans-serif;font-size:13px;font-weight:700;justify-content:center;padding:11px var(--spacing-md);text-decoration:none;white-space:nowrap;width:150px}.site-header .site-header__btn--primary{background-color:var(--color-brand-primary);color:var(--color-text-inverse)}.site-header .site-header__btn--secondary{background-color:var(--color-surface-elevated);border:2px solid var(--color-brand-primary);color:var(--color-brand-primary)}.site-header__nav{background-color:var(--color-brand-primary);width:100%}.site-header__nav-list{align-items:center;display:flex;gap:40px;justify-content:center;list-style:none;margin:0;padding:var(--spacing-lg) 0}.site-header .site-header__nav-link{color:var(--color-text-inverse);font-family:Noto Sans JP,sans-serif;font-size:15px;font-weight:700;line-height:normal;text-decoration:none;white-space:nowrap}.site-header .site-header__nav-link--active,.site-header .site-header__nav-link:hover{opacity:.85}