:root{--sumi: #16181D;--nezumi: #5E6470;--sen: #E3E6EB;--ji: #F5F6F8;--shiro: #FFFFFF;--ai: #3B5BDB;--midori: #1F9D63;--shu: #D9480F;color-scheme:light}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--ji);color:var(--sumi);font-family:Zen Kaku Gothic New,system-ui,sans-serif;-webkit-font-smoothing:antialiased}button{font-family:inherit}.gamen{min-height:100%;display:flex;flex-direction:column}.atama{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--shiro);border-bottom:1px solid var(--sen)}.atama b{font-size:16px}.atama span{font-size:12px;color:var(--nezumi)}.naka{flex:1;padding:24px 20px;display:flex;flex-direction:column;gap:14px;max-width:720px;width:100%;margin:0 auto}.kado{background:var(--shiro);border-radius:16px;padding:18px;box-shadow:0 1px 2px #16181d0f}.kado h2{margin:0 0 6px;font-size:16px}.kado p{margin:0;font-size:14px;color:var(--nezumi);line-height:1.7}.jun{font-size:12px;color:var(--nezumi)}