@charset "UTF-8";

.birthday-page { color: #111; }
.birthday-hero { position: relative; width: 100%; overflow: hidden; }
.birthday-hero picture { display: block; }
.birthday-hero img { display: block; width: 100%; height: auto; }
.birthday-hero__title { position: absolute; top: 17%; left: 8%; margin: 0; }

.birthday-months { padding: 48px 0 90px; background: linear-gradient(180deg, #277aa7 0, #8ebbd2 6%, #d7e9f1 27%, #fff 53%); }
.birthday-months__inner > h2 { margin: 0 0 30px; color: #fff; text-align: center; font-family: "Zen Old Mincho", serif; font-size: 20px; font-weight: 400; }








.birthday-month-list { display: grid; gap: 70px; }
.birthday-month { width: 78%; margin: 0 auto; scroll-margin-top: 20px; }
.birthday-month h3 { margin: 0 0 28px; color: #225C8D; text-align: center; font-family: "Sterling Display", "Times New Roman", serif; font-size: 30px; font-weight: 400; letter-spacing: .05em; }
.birthday-month h3 b { font-size: 45px; font-weight: 400; }
.birthday-month__visual { position: relative; }
.birthday-month__visual img { display: block; width: 100%; aspect-ratio: 1 / 1.2; object-fit: cover; }
.birthday-month__visual a { position: absolute; right: 7%; bottom: 5%; left: 7%; display: grid; min-height: 40px; padding: 7px 12px; color: #222; background: #fff; border: 1px solid #888; border-radius: 999px; place-items: center; font-size: 14px; }
.birthday-month ul { margin: 14px 0 0; padding: 0; color: #225C8D; list-style: none; font-size: 12px; font-weight: 600; line-height: 1.7; }
.birthday-month li a { color: inherit; text-decoration: none;font-size: 16px; }
.birthday-month li a:hover, .birthday-month li a:focus-visible { text-decoration: underline; text-underline-offset: 3px; }
.birthday-month li::before { content: "・"; }
.birthday-month li::after  {
  content: " ▸";
  font-size: 16px;
  line-height: 1em;
}

.birthday-faq { padding-top: 48px; padding-bottom: 90px; background: #F7F7F7; }
.birthday-faq__inner { width: 95%; margin-right: auto; margin-left: auto; }
.birthday-faq .common-section-title { margin-bottom: 26px; font-size: 18px; }
.birthday-faq__item { position: relative; padding-bottom: 27px; color: #225C8D; background: #F7F7F7; border-bottom: 0; }
.birthday-faq__item + .birthday-faq__item { border-top: 1px solid #F0EDED; }
.birthday-faq__item:last-child { border-bottom: 0; }
.birthday-faq__item summary { display: grid; grid-template-columns: 24px 1fr; gap: 4px; align-items: start; padding: 16px 0 12px; color: #225C8D; background: #F7F7F7; cursor: pointer; list-style: none; font-size: 13px; line-height: 1.55; }
.birthday-faq__item summary b { font-weight: 500; }
.birthday-faq__item summary::-webkit-details-marker { display: none; }
.birthday-faq__item summary > span, .birthday-faq__item > div > span { color: #225C8D; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.4; }
.birthday-faq__item summary i { position: absolute; bottom: 9px; left: 50%; width: 0; height: 0; border-top: 6px solid #225C8D; border-right: 5px solid transparent; border-left: 5px solid transparent; transform: translateX(-50%); transition: transform .25s ease; }
.birthday-faq__item[open] summary i { transform: translateX(-50%) rotate(180deg); }
.birthday-faq__item > div { display: block; width: 100%; padding: 22px 6% 24px; color: #225C8D; background: #fff; }
.birthday-faq__answer p { margin: 0 0 18px; font-size: 13px; line-height: 1.75; }
.birthday-faq__answer p:last-child { margin-bottom: 0; }
.birthday-faq__answer ul { margin: 0 0 18px; padding: 0; list-style: none; font-size: 13px; line-height: 1.65; }
.birthday-faq__answer li::before { content: "・"; }

@media (min-width: 768px) {
  .birthday-hero { max-width: 1920px; max-height: none; margin-inline: auto; }
  .birthday-hero img { width: 100%; height: auto; min-height: 0; object-fit: contain; object-position: center; }
  .birthday-hero__title { top: 36%; left: 7%; }
  .birthday-intro p { max-width: 760px; margin-inline: auto; text-align: center; }
  
        
  

  .birthday-month-list { grid-template-columns: repeat(3, 1fr); gap: 80px 34px; }
  .birthday-month { width: 100%; }
  .birthday-months__inner > h2 {
    margin: 60px 0 50px;
    font-size: 35px;
}

  .birthday-months{grid-template-columns:repeat(3,minmax(0,1fr));gap:52px 30px;margin-right:auto;margin-left:auto}
}