.s2-letter {
  --letter-ink: #171e36;
  --letter-muted: #42536a;
  --letter-blue: #205ec2;
  box-sizing: border-box;
  color: var(--letter-ink);
  text-align: center;
}
#s2-newsletter {
  width: 100%;
  padding: clamp(38px, 5.2vw, 68px) clamp(18px, 4vw, 42px);
  background: #eff7ff url("/img/common/newsletter-light-blue-20261015.png") center / cover no-repeat;
}
#s2-newsletter.s2-letter--faq {
  width: min(100% - 32px, 1020px);
  margin: 32px auto 52px;
  border: 1px solid #d9e7f6;
  border-radius: 18px;
  padding-block: clamp(32px, 4vw, 50px);
}
.s2-letter .s2-letter-inner { max-width: 780px; margin-inline: auto; }
.s2-letter .s2-letter-label {
  color: var(--letter-blue);
  font: 700 12px/1.5 system-ui, sans-serif;
  letter-spacing: .11em;
  margin: 0 0 13px;
}
.s2-letter h2 {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--letter-ink);
  font: 700 clamp(22px, 3vw, 34px)/1.55 "Noto Serif JP", "Yu Mincho", YuMincho, serif;
  letter-spacing: .035em;
  text-align: center;
  overflow-wrap: anywhere;
}
.s2-letter .s2-letter-copy {
  margin: 16px 0 0;
  color: var(--letter-muted);
  font: 400 clamp(14px, 1.4vw, 16px)/1.9 system-ui, sans-serif;
}
.s2-letter .s2-letter-action {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 390px);
  min-height: 56px;
  box-sizing: border-box;
  margin: 22px auto 0;
  padding: 13px 36px;
  border-radius: 8px;
  background: var(--letter-blue);
  box-shadow: 0 7px 17px #205ec22b;
  color: #fff;
  font: 700 clamp(14px, 1.6vw, 17px)/1.45 system-ui, sans-serif;
  text-decoration: none;
}
.s2-letter .s2-letter-action span { position: absolute; right: 15px; font-size: 20px; }
.s2-letter .s2-letter-action:hover { background: #184d9f; color: #fff; opacity: 1; }
.s2-letter :is(a,button):focus-visible { outline: 3px solid #171e36; outline-offset: 4px; }
.s2-letter .s2-letter-note { margin: 13px 0 0; color: var(--letter-muted); font: 400 12px/1.6 system-ui, sans-serif; }
.s2-letter .s2-letter-narrow { display: none; }
#s2-newsletter-popup {
  position: fixed;
  inset: 0;
  width: min(100% - 32px, 450px);
  max-height: calc(100% - 32px);
  margin: auto;
  padding: 0;
  border: 1px solid #cddff4;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 20px 75px #10264554;
  overflow: auto;
}
#s2-newsletter-popup::backdrop { background: #10213c80; }
#s2-newsletter-popup .s2-letter-cover {
  display: grid;
  min-height: 117px;
  place-items: center;
  background: #eff7ff url("/img/common/newsletter-light-blue-20261015.png") center / cover no-repeat;
}
#s2-newsletter-popup .s2-letter-inner { padding: 23px clamp(18px, 4vw, 36px) 26px; }
#s2-newsletter-popup h2 { font-size: clamp(22px, 4vw, 28px); }
#s2-newsletter-popup .s2-letter-copy { margin-top: 12px; }
#s2-newsletter-popup .s2-letter-close { position: absolute; top: 10px; right: 10px; margin: 0; }
#s2-newsletter-popup .s2-letter-close button {
  display: grid;
  place-items: center;
  box-sizing: border-box;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid #ccdced;
  border-radius: 50%;
  color: #243d62;
  background: #fff;
  cursor: pointer;
  font: 400 25px/1 system-ui, sans-serif;
}
@media (max-width: 480px) {
  #s2-newsletter { background-position: 63% center; }
  .s2-letter .s2-letter-narrow { display: initial; }
  #s2-newsletter .s2-letter-copy br { display: none; }
}