/* Edition 5: visible navigation and intrinsic photo proportions. */
img{height:auto}
.about-feature figure>img{display:block;width:100%;height:auto;aspect-ratio:auto;object-fit:contain}
.mobile-section-nav{display:none}
@media(max-width:950px){
 :root{--menu-button-width:84px}
 html:lang(ja){--menu-button-width:106px}
 .site-header .menu-toggle{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:8px;width:var(--menu-button-width);min-width:var(--menu-button-width);height:46px;padding:10px 12px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:24px;box-shadow:0 2px 0 #c7a884;font-size:14px;line-height:1.2;flex-shrink:0}
 .menu-toggle .menu-glyph{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
 .menu-toggle-label{font:inherit;font-weight:700;white-space:nowrap}
 .site-header .menu-toggle:hover,.site-header .menu-toggle[aria-expanded=true]{background:#7e1743;border-color:#7e1743}
 .site-header .menu-toggle:focus-visible{outline:3px solid var(--pink);outline-offset:3px}
 .mobile-section-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding:0 max(16px,env(safe-area-inset-right)) 0 max(16px,env(safe-area-inset-left));background:var(--paper);border-bottom:1px solid var(--line)}
 .mobile-section-nav a,.mobile-section-nav button{position:relative;min-width:0;min-height:46px;display:flex;justify-content:center;align-items:center;gap:5px;padding:9px 2px;background:transparent;color:var(--ink);font-size:14px;font-weight:600;line-height:1.4;white-space:nowrap}
 .mobile-section-nav button{color:#a3154d}
 .mobile-section-nav a[aria-current=page]{color:#a3154d}
 .mobile-section-nav a[aria-current=page]:after{content:'';position:absolute;height:3px;border-radius:3px 3px 0 0;background:var(--pink);bottom:0;left:18%;right:18%}
 .mobile-section-nav a:hover,.mobile-section-nav button:hover{background:#f7e3dc}
 .mobile-section-nav :focus-visible{outline:3px solid var(--pink);outline-offset:-3px;border-radius:6px}
}
@media(max-width:600px){
 .site-header{gap:8px;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
 .site-header .language-switcher summary{padding-inline:9px}
 .language-options{right:calc(-1 * (var(--menu-button-width) + 8px))}
 .mobile-section-nav{padding-inline:max(12px,env(safe-area-inset-left)) max(12px,env(safe-area-inset-right))}
}