/* Guestbook: a page-specific layer on top of the site's custom visual system. */
.type-guestbook #page {
  max-width: 960px;
  margin: 0 auto;
}

.type-guestbook #article-container {
  max-width: none;
}

.type-guestbook .guestbook-intro {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 250px;
  overflow: hidden;
  padding: 40px 48px;
  border: 1px solid rgba(81, 139, 151, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(105deg, rgba(17, 49, 61, 0.96), rgba(28, 91, 96, 0.82)),
    url('/images/selection1.jpg') center / cover;
  box-shadow: 0 16px 36px rgba(21, 62, 72, 0.16);
  color: #fff;
}

.type-guestbook .guestbook-intro::after {
  position: absolute;
  top: -82px;
  right: 8%;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(234, 249, 247, 0.25);
  border-radius: 50%;
  box-shadow: -48px 64px 0 -1px rgba(234, 249, 247, 0.13);
  content: '';
}

.type-guestbook .guestbook-intro-copy,
.type-guestbook .guestbook-stamp {
  position: relative;
  z-index: 1;
}

.type-guestbook .guestbook-kicker,
.type-guestbook .guestbook-message > div > span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #b8f2e9;
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.1em;
}

.type-guestbook .guestbook-intro h1 {
  margin: 13px 0 9px;
  border: 0;
  color: #fff;
  font-size: 3rem;
  line-height: 1.12;
}

.type-guestbook .guestbook-intro p {
  max-width: 540px;
  margin: 0;
  color: rgba(245, 255, 254, 0.9);
  font-size: 0.98rem;
  line-height: 1.8;
}

.type-guestbook .guestbook-stamp {
  display: grid;
  width: 116px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(240, 255, 251, 0.5);
  border-radius: 50%;
  background: rgba(9, 36, 41, 0.26);
  color: #e4fcf8;
  transform: rotate(10deg);
}

.type-guestbook .guestbook-stamp img {
  width: 58px;
  height: 58px;
  border: 2px solid rgba(240, 255, 251, 0.58);
  border-radius: 50%;
  object-fit: cover;
}

.type-guestbook .guestbook-stamp span {
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.type-guestbook .guestbook-guidelines {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0 42px;
}

.type-guestbook .guestbook-guidelines > div {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 2px 10px;
  min-width: 0;
  padding: 17px;
  border: 1px solid var(--ui-border);
  border-radius: 8px;
  background: var(--ui-surface);
}

.type-guestbook .guestbook-guidelines i {
  grid-row: span 2;
  padding-top: 2px;
  color: var(--ui-teal);
}

.type-guestbook .guestbook-guidelines strong {
  color: var(--ui-heading);
  font-size: 0.92rem;
}

.type-guestbook .guestbook-guidelines span {
  color: var(--ui-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.type-guestbook .guestbook-message {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin: 0 0 18px;
  padding: 0 2px 18px;
  border-bottom: 1px solid var(--ui-border);
}

.type-guestbook .guestbook-message h2 {
  margin: 5px 0 0;
  padding: 0;
  border: 0;
  color: var(--ui-heading);
  font-size: 1.55rem;
}

.type-guestbook .guestbook-message p {
  max-width: 380px;
  margin: 0;
  color: var(--ui-muted);
  font-size: 0.84rem;
  line-height: 1.7;
}

.type-guestbook #post-comment {
  margin-top: 0;
}

.type-guestbook #post-comment .comment-headline span {
  font-size: 0;
}

.type-guestbook #post-comment .comment-headline span::after {
  content: '全部留言';
  font-size: 1rem;
}

@media screen and (max-width: 768px) {
  .type-guestbook #page {
    padding: 0 14px;
  }

  .type-guestbook .guestbook-intro {
    display: block;
    min-height: 0;
    padding: 32px 24px 26px;
  }

  .type-guestbook .guestbook-intro h1 {
    font-size: 2.35rem;
  }

  .type-guestbook .guestbook-stamp {
    width: 84px;
    margin-top: 24px;
  }

  .type-guestbook .guestbook-guidelines {
    grid-template-columns: 1fr;
    margin: 16px 0 32px;
  }

  .type-guestbook .guestbook-message {
    display: block;
    margin-bottom: 14px;
  }

  .type-guestbook .guestbook-message p {
    margin-top: 12px;
  }
}