* { box-sizing: border-box; }
html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #222; }
body { margin: 0; background: #fff; }
.wrapper { max-width: 1200px; margin: 0 auto; padding: 0 24px 48px; }
#mobile-nav, #nav-toggle { display: none; }
header { border-bottom: 1px solid #ddd; padding: 20px 0; }
.header_wrap, section, .wrap, form, dl, dt, dd { max-width: 100%; }
dd { margin-inline-start: 0; }
.wrapper img, .wrapper a { max-width: 100%; }
.wrapper img { height: auto; }
header ul, footer ul { display: flex; flex-wrap: wrap; gap: 12px 24px; padding: 0; list-style: none; }
header a, footer a { color: #17206e; text-decoration: none; }
.site-catch { margin: 0 0 12px; color: #b74366; }
.stg-site-title { display: inline-block; color: #e84d7e; font-size: 32px; font-weight: 700; }
.stg-site-title small { font-size: 13px; color: #555; }
.common_page-title { padding: 42px 0 20px; text-align: center; }
.common_page-title h2 { font-size: 36px; }
.login .wrap { max-width: 720px; margin: 0 auto; }
.login-area { padding: 32px; background: #f5f6f8; border: 1px solid #d8dbe3; }
.login-area input[type="text"], .login-area input[type="email"], .login-area input[type="password"] { width: 100%; padding: 12px; margin: 8px 0 20px; border: 1px solid #bbb; }
.login-area input[type="submit"], .login-area button { min-width: 220px; padding: 13px 24px; color: #fff; background: #171f73; border: 0; }
.stg-external-placeholder { padding: 24px; background: #f3f3f3; border: 1px dashed #999; color: #555; }
@media (max-width: 640px) {
  .wrapper { padding-inline: 16px; }
  header .header_wrap nav, .header_wrap.gnav { display: none; }
  .stg-site-title { font-size: 28px; }
  .common_page-title h2 { font-size: 28px; }
  .login-area { padding: 20px; }
  .login-area input, .login-area button { max-width: 100%; }
  footer ul { display: block; }
  footer li { margin: 8px 0; }
}