.e2e-shell{width:min(680px,100% - 32px);margin:64px auto;padding:32px;border:1px solid #dedede;border-radius:16px;background:#fff;color:#171717;font-family:Noto Sans JP,system-ui,sans-serif;box-sizing:border-box}.e2e-shell nav{display:flex;gap:16px;margin-top:24px}.e2e-eyebrow{color:#6b5cff;font-weight:700;text-transform:uppercase}