/* 2026-10-18: ポスターと共通の写真・縦書きコピー。
   トップと網地はるかだけに適用し、他ページの承認済みレイアウトは変えない。 */
.poster-page .site-header {
  position: absolute;
  top: 0;
  min-height: 0;
  color: #fff;
  background: linear-gradient(rgba(14, 39, 59, .48), transparent);
}
.poster-page .header-inner { align-items: center; min-height: 92px; }
.poster-page .brand { display: inline-flex; align-items: center; }
.poster-page .site-nav .shop-link { border-color: rgba(255,255,255,.8); }

.poster-hero {
  position: relative;
  isolation: isolate;
  height: clamp(680px, 100svh, 1060px);
  min-height: 48vw;
  max-height: 1120px;
  color: #fff;
  background: #416d90;
}
.poster-hero-media { position: absolute; z-index: -2; inset: 0; }
.poster-hero-media img { object-position: 50% 54%; }
.poster-hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  /* 写真の青を残しつつ、白い文字の背後にだけ濃度を足す。 */
  background: linear-gradient(0deg, rgba(12, 35, 58, .42), transparent 42%),
    linear-gradient(180deg, rgba(17, 51, 80, .2), rgba(17, 51, 80, .04) 60%);
}
.poster-hero-title {
  position: absolute;
  left: max(5vw, calc((100vw - 1440px) / 2));
  bottom: 26%;
  text-shadow: 0 2px 20px rgba(8, 30, 48, .35);
}
.poster-eyebrow {
  margin: 0 0 15px;
  font-family: var(--serif);
  font-size: clamp(18px, 1.8vw, 27px);
  letter-spacing: .16em;
  line-height: 1.5;
}
.poster-hero h1 {
  font-size: clamp(60px, 6.2vw, 96px);
  line-height: 1.35;
  letter-spacing: .12em;
  white-space: nowrap;
}
.poster-message {
  position: absolute;
  top: clamp(120px, 9vw, 164px);
  left: 52%;
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--serif);
  font-size: clamp(29px, 2.4vw, 36px);
  line-height: 1.9;
  letter-spacing: .2em;
  text-shadow: 0 1px 14px rgba(8, 30, 48, .45);
}
.poster-message span { display: block; white-space: nowrap; }

.poster-introduction {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  width: min(100% - 96px, 1160px);
  margin: 0 auto;
  padding: clamp(90px, 11vw, 160px) 0;
}
.poster-introduction h2 { font-size: var(--section-title-size); line-height: var(--section-title-leading); }
.poster-introduction h2 span:not(.keep) { display: inline; white-space: normal; }
.poster-introduction-copy { max-width: 860px; padding-top: 0; }
.poster-introduction-copy p {
  margin: 0 0 1.5em;
  font-size: var(--body-size);
  line-height: var(--body-leading);
  text-wrap: pretty;
}
.poster-introduction-copy p:last-child { margin-bottom: 0; }
.poster-introduction-copy .quiet-link { margin-top: 12px; }
.poster-introduction + .product { padding-top: 36px; }
.poster-introduction-detail + .story { padding-top: 20px; }

.poster-sendoff {
  width: min(100% - 96px, 1160px);
  margin: 0 auto;
  padding: clamp(64px, 8vw, 120px) 0 clamp(92px, 12vw, 170px);
}
.poster-sendoff h2 { max-width: 1000px; font-size: var(--section-title-size); line-height: var(--section-title-leading); }
.poster-sendoff h2 span { display: inline; }
.poster-sendoff p { max-width: 860px; margin: 28px 0 0; font-family: var(--sans); font-size: var(--body-size); line-height: var(--body-leading); text-wrap: pretty; }
.poster-sendoff-copy p + p { margin-top: 0; }
.poster-sendoff .poster-sendoff-preface { margin: 0 0 18px; }
.poster-page .island-copy { padding-bottom: 0; }
.poster-page .short-story + .poster-sendoff { padding-top: 0; }

@media (max-width: 900px) {
  .poster-introduction { width: calc(100% - 64px); }
  .poster-sendoff { width: calc(100% - 64px); }
}

@media (max-width: 767px) {
  .poster-page .header-inner { align-items: flex-start; min-height: 112px; }
  .poster-page .brand { padding-top: 9px; }
  .poster-hero { height: 100svh; min-height: 720px; max-height: 1000px; }
  .poster-hero-media img { object-position: 55% 50%; }
  .poster-hero-title { right: 24px; bottom: 48px; left: 24px; }
  .poster-eyebrow { margin-bottom: 12px; font-size: 18px; letter-spacing: .12em; }
  .poster-hero h1 { font-size: clamp(44px, 11.7vw, 68px); letter-spacing: .09em; }
  .poster-message { top: 146px; right: 14%; left: auto; font-size: clamp(27px, 5.2vw, 35px); line-height: 1.8; letter-spacing: .16em; }
  .poster-introduction { display: block; width: var(--page); padding: 76px 0 64px; }
  .poster-introduction-copy { padding-top: 0; }
  .poster-introduction + .product { padding-top: 28px; }
  .poster-introduction-detail + .story { padding-top: 24px; }
  .poster-sendoff { width: var(--page); padding: 72px 0 88px; }
}

@media (max-width: 370px) {
  .poster-message { right: 11%; top: 184px; font-size: 26px; }
  .poster-hero-title { right: 20px; left: 20px; }
  .poster-hero h1 { font-size: 44px; }
  .poster-eyebrow { font-size: 17px; }
}