@charset "utf-8";
/* 冬の特集LP。基本とスマートフォンのスタイルの後に、PC・タブレットの差分をまとめる。
   日本語書体はHTMLからGoogle Fontsを読み込み、英字書体はこのファイルから配信する。 */

@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/playfair-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: block;
}
:root {
  --gold1: #b29d6c;
  --gold2: #d9ca9c;
  --gold-tint: #f6f3ed;
  --terra: #c66e4e;
  --mint: #76d6d0;
  --gold-line: #a89567;
  --ink: #2f2a24;
  --ink-soft: #5b5248;
  --gold-ink: #7a6740;
  --line: #e6dece;
  --bg: #fff;
  --bg-soft: #faf7f1;
  --serif: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', 'Hiragino Mincho ProN', serif;
  --sans: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --gutter: 16px;
  --logo-w: min(180px, 46.15vw);
  --sq: 1.4;
  --ease: cubic-bezier(0.22, 0.8, 0.24, 1);
}
/* 基本 */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
html.is-locked {
  overflow: hidden;
}
html.is-locked body {
  padding-right: var(--sbw, 0px);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.04em;
}
main {
  overflow-x: clip;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
}
p {
  margin: 0;
}
.skip-link {
  position: fixed;
  left: 8px;
  top: -60px;
  z-index: 50;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  font-size: 16px;
}
.skip-link:focus {
  top: 8px;
}
/* ヘッダー */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 22px var(--gutter) 0;
  min-height: 80px;
  pointer-events: none;
}
.brand {
  position: relative;
  display: block;
  width: var(--logo-w);
}
.site-header .brand {
  z-index: 2;
}
.site-header .brand,
.site-header .menu-open {
  pointer-events: auto;
}
html.is-locked .site-header {
  right: var(--sbw, 0px);
}
.site-header .brand-color {
  position: absolute;
  left: calc(var(--logo-w) * -39 / 406);
  top: calc(var(--logo-w) * -39 / 406);
  width: calc(var(--logo-w) * 485 / 406);
  max-width: none;
  opacity: 0;
}
.site-header.is-scrolled {
  background: var(--terra);
}
.site-header.is-scrolled .brand::before {
  opacity: 0;
}
.site-header.is-scrolled.has-color-logo {
  background: #fff;
}
.site-header.is-scrolled.has-color-logo .brand-reverse {
  opacity: 0;
}
.site-header.is-scrolled.has-color-logo .brand-color {
  opacity: 1;
}
.brand img {
  width: 100%;
}
.brand::before {
  content: '';
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  width: calc(var(--logo-w) * var(--sq));
  aspect-ratio: 1;
  translate: -50% -50%;
  rotate: -45deg;
  background: var(--terra);
  opacity: 0.9;
  pointer-events: none;
}
.site-header .brand::before,
.picker-head .brand::before {
  left: 40%;
  top: 0;
}
.menu-open {
  position: fixed;
  top: 16px;
  right: var(--gutter);
  z-index: 20;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: 0;
  background: #fff;
  color: var(--gold-line);
  cursor: pointer;
}
/* 線のアイコン */
.ico {
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  overflow: visible;
}
.ico path {
  vector-effect: non-scaling-stroke;
}
.ico-menu {
  width: 28px;
  height: 18px;
}
.ico-close {
  width: 20px;
  height: 20px;
}
.ico-arw {
  width: 24px;
  height: 10px;
  color: var(--terra);
}
.ico-book {
  width: 22px;
  height: 22px;
  color: var(--gold-ink);
}
.topic-link .ico-arw {
  margin-left: auto;
}
.ico-next {
  width: 8px;
  height: 14px;
  color: var(--terra);
}
/* 折り紙の部品 */
.sq {
  position: absolute;
  display: block;
  aspect-ratio: 1;
  pointer-events: none;
  rotate: var(--r, 0deg);
}
.fold-photo {
  overflow: hidden;
  clip-path: var(--clip, none);
}
.fold-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (prefers-reduced-motion: no-preference) {
  .fold-photo {
    transition:
      clip-path 1.2s var(--ease),
      opacity 0.8s ease;
  }
  .sq {
    transition:
      translate 1s var(--ease) var(--d, 0.3s),
      rotate 1s var(--ease) var(--d, 0.3s),
      opacity 0.7s ease var(--d, 0.3s);
  }
  .js [data-fold]:not(.is-in) .fold-photo {
    clip-path: var(--clip-from);
    opacity: 0;
  }
  .js [data-fold]:not(.is-in) .sq {
    opacity: 0;
    translate: var(--fx, 0) var(--fy, -28px);
    rotate: calc(var(--r, 0deg) + 40deg);
  }
}
/* FV */
.hero-stage {
  --x: 1;
  --w: 100;
  --rot: 8deg;
  --m: 20;
  --mr: 50;
  --mb: 103;
  --bite: calc(var(--logo-w) * 0.4);
  --top: calc(22px + var(--logo-w) * var(--sq) * 0.7071 - var(--bite));
  position: relative;
  display: flow-root;
  max-width: 600px;
  margin: 0 auto;
  padding-top: var(--top);
}
.hero-photo {
  position: relative;
  z-index: 1;
  container-type: inline-size;
  width: calc(var(--w) * 1%);
  aspect-ratio: 1;
  rotate: var(--rot);
  margin: 0 0 calc(var(--w) * 0.0647 * 1%) calc(var(--x) * 1%);
  --clip: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  --clip-from: polygon(50% 14%, 86% 50%, 50% 86%, 14% 50%);
}
.hero-photo img {
  object-position: 80% 50%;
}
.hero .sq-corner {
  right: calc((var(--mr) - var(--m) / 2) * 1%);
  top: var(--top);
  margin-top: calc((var(--mb) - var(--m) / 2) * 1%);
  width: calc(var(--m) * 1%);
  z-index: 2;
  background: var(--mint);
  mix-blend-mode: multiply;
  --r: -16deg;
  --d: 0.8s;
  --fx: 20px;
  --fy: 24px;
}
.hero-title {
  position: absolute;
  z-index: 1;
  top: -6%;
  right: 7.5%;
  margin: 0;
  rotate: calc(var(--rot) * -1);
  writing-mode: vertical-rl;
  white-space: nowrap;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 8.6cqw;
  line-height: 1.5;
  letter-spacing: 0.1em;
  color: #fff;
  text-shadow: 0 0 2px rgba(12, 26, 44, 0.5),
    0 0 6px rgba(12, 26, 44, 0.28),
    0 1px 14px rgba(12, 26, 44, 0.35);
}
.hero-title span {
  display: block;
}
.hero-sub {
  margin-left: 0.45em;
  font-size: max(14px, 0.625em);
  letter-spacing: 0.09em;
}
.intro {
  padding: 60px var(--gutter) 24px;
  text-align: center;
}
.intro-line {
  word-break: keep-all;
}
.intro p {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 2.1;
  letter-spacing: 0.1em;
}
/* 特集の見出しと月の目次 */
.topics {
  padding: 0 0 96px;
  scroll-margin-top: 96px;
}
.calendar {
  padding: 48px var(--gutter) 32px;
  background: var(--gold-tint);
}
.topics-heading {
  text-align: center;
}
.eyebrow {
  font-size: 14px;
  letter-spacing: 0.18em;
  color: var(--gold-ink);
}
.topics-heading h2 {
  margin: 8px 0 10px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.6;
  letter-spacing: 0.1em;
}
.topics-heading p:last-child {
  color: var(--ink-soft);
}
.month-nav ol {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.month-nav li + li {
  border-left: 1px solid var(--line);
}
.month-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 6px 0;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: 0.06em;
}
.month-nav span {
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--gold-ink);
}
/* 月の章：縦書きの見出しが画面に残り、特集が流れる */
.month {
  display: grid;
  grid-template-columns: 40px 1fr;
  column-gap: 12px;
  margin: 88px var(--gutter) 0;
  scroll-margin-top: 96px;
}
.month-head {
  position: sticky;
  top: 96px;
  align-self: start;
  display: flex;
  align-items: center;
  gap: 12px;
  writing-mode: vertical-rl;
}
.month-name {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0.24em;
}
.month-num {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.24em;
  color: var(--gold-ink);
}
.topic {
  scroll-margin-top: 96px;
}
.topic:focus {
  outline: none;
}
.topic + .topic {
  margin-top: 72px;
}
.topic-photo {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: 0;
  margin-bottom: 0;
  background: var(--c-photo-color, var(--mint));
}
.topic-color-cyan {
  --c-photo-color: #00b6ce;
}
.topic-color-terra {
  --c-photo-color: var(--terra);
}
.topic-photo .fold-photo {
  position: relative;
  z-index: 0;
  opacity: 1;
  translate: 0 0;
  aspect-ratio: 1;
  --clip: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  --clip-from: polygon(50% 8%, 92% 50%, 50% 92%, 8% 50%);
}
@media (prefers-reduced-motion: no-preference) {
  .topic-photo.is-photo-ready .fold-photo {
    transition: translate 1.1s var(--ease) 0.12s;
  }
  .js .topic-photo.is-photo-ready:not(.is-photo-in) .fold-photo {
    opacity: 1;
    translate: -100% 0;
    transition: none;
  }
}
.pos-left {
  object-position: 22% 50%;
}
.topic-copy {
  padding-top: 18px;
}
.topic h4 {
  margin: 6px 0 8px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.55;
  letter-spacing: 0.08em;
}
.topic h4,
.picker-list a span {
  word-break: keep-all;
}
.topic h4 .title-line {
  display: block;
}
.topic h4 .phrase,
.picker-list .phrase {
  display: inline-block;
}
.description {
  color: var(--ink-soft);
}
.topic-link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  min-height: 48px;
  margin-top: 14px;
  font-size: 16px;
  text-decoration: none;
  border-bottom: 1px solid var(--gold1);
}
/* 会員デビューの帯 */
.rewards {
  padding: 48px 28px 52px;
  background: #f4f4ee;
  color: #555;
  text-align: center;
  -webkit-font-smoothing: antialiased;
}
.rewards-logo {
  display: block;
  width: 227px;
  max-width: 100%;
  height: auto;
  margin: 0 auto 28px;
}
.rewards-free {
  margin: 0 0 2px;
  font: 700 16px/1.7 var(--sans);
}
.rewards h2 {
  margin: 0;
  font: 700 20px/1.6 var(--sans);
}
.rewards h2 span {
  display: block;
}
.rewards-link {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 294px;
  min-height: 52px;
  margin: 24px auto 0;
  padding: 11.75px 44px;
  border-radius: 28px;
  background: #998542;
  color: #fff;
  text-decoration: none;
  font: 700 19px/1.5 var(--sans);
}
.rewards-link svg {
  position: absolute;
  right: 18px;
  width: 26px;
  height: 20px;
}
.rewards-link:hover {
  background: #897638;
}
/* フッター */
.site-footer {
  background: var(--ink);
  color: #fff;
  text-align: center;
}
.footer-main {
  padding: 56px var(--gutter) 40px;
}
.footer-title {
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: 0.1em;
}
.footer-title span {
  display: block;
}
.footer-main > a:not(.footer-official) {
  display: block;
  width: fit-content;
  margin: 24px auto 0;
  padding: 6px;
}
.footer-logo {
  width: 200px;
}
.footer-official {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  margin-top: 16px;
  font-size: 16px;
  text-decoration: none;
  border-bottom: 1px solid var(--gold1);
}
.notice {
  margin: 28px auto 0;
  font-size: min(2.9vw, 14px);
  line-height: 1.8;
  letter-spacing: 0;
  color: rgba(255, 255, 255, 0.82);
}
.notice span {
  display: block;
  white-space: nowrap;
}
.footer-legal {
  padding: 34px 6px 72px;
  background: #fff;
  color: #555;
}
.footer-seibu {
  display: flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 44px;
  margin: 0 auto;
}
.seibu-logo {
  width: 100px;
  height: auto;
  filter: none;
}
.footer-legal .copyright {
  margin: 18px auto 0;
  font-size: 14px;
  line-height: 1.8;
  letter-spacing: 0;
}
/* ページ上部へ戻る */
.page-top {
  position: fixed;
  z-index: 20;
  right: calc(16px + env(safe-area-inset-right, 0px));
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(47, 42, 36, 0.25);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  text-decoration: none;
  transition: opacity 0.2s ease,
    visibility 0.2s;
}
.page-top svg {
  width: 18px;
  height: 10px;
  translate: 0 -1px;
}
.page-top:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(47, 42, 36, 0.45);
}
html.js .page-top:not(.is-shown) {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.picker {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: #fff;
  color: var(--ink);
  overflow: auto;
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}
.picker::backdrop {
  background: transparent;
}
.picker[open] {
  animation: menu-in 0.4s var(--ease);
}
@keyframes menu-in {
  from {
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .picker[open] {
    animation: none;
  }
  .page-top {
    transition: none;
  }
}
.picker-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 22px var(--gutter) 16px;
  background: #fff;
}
.picker-head .brand::before {
  content: none;
}
.picker-head .brand {
  height: calc(var(--logo-w) * 149 / 600);
}
.picker-head .brand img {
  position: absolute;
  left: calc(var(--logo-w) * -39 / 406);
  top: calc(var(--logo-w) * -39 / 406);
  width: calc(var(--logo-w) * 485 / 406);
  max-width: none;
}
.picker-close {
  position: fixed;
  top: 16px;
  right: calc(var(--gutter) + var(--sbw, 0px));
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--terra);
  cursor: pointer;
}
.picker-inner {
  max-width: 560px;
  margin: 0 auto;
  padding: 28px var(--gutter) calc(32px + env(safe-area-inset-bottom));
}
.picker-eyebrow {
  margin: 0 0 10px;
  color: #7b6c4e;
  font: 400 14px/1.5 var(--sans);
  letter-spacing: 0.08em;
}
.picker-title {
  font-family: var(--serif);
  font-size: 24px;
  letter-spacing: 0.08em;
}
.picker-list {
  display: grid;
  gap: 0;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}
.picker-list > li {
  border-bottom: 1px solid #e8e3d8;
}
.picker-list a {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 8px;
  align-items: center;
  gap: 16px;
  min-height: 88px;
  padding: 12px 0;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.6;
  text-decoration: none;
}
.picker-list img {
  width: 64px;
  height: 64px;
  object-fit: cover;
}
/* 狭い画面 */
@media (max-width: 359px) {
  .month {
    grid-template-columns: 34px 1fr;
    column-gap: 10px;
  }
  .month-name {
    font-size: 26px;
  }
  .rewards {
    padding-inline: 20px;
  }
}
/* スマホFV：Playfair Display の Winter Moments */
.hero-english {
  display: none;
}
@media (max-width: 767px) {
  .hero-stage {
    --m: 18;
    --mr: 9;
    --mb: 108;
  }
  .hero-english {
    position: relative;
    z-index: 2;
    display: block;
    margin: clamp(-30px, -6.94vw, -22px) 0 0;
    padding: 0 8px;
    color: var(--gold2);
    font-family: 'Playfair Display', serif;
    font-size: clamp(40px, 12.8vw, 56px);
    font-weight: 400;
    font-style: italic;
    line-height: 0.95;
    letter-spacing: 0;
  }
  .hero-english span {
    display: block;
  }
  .hero-english span + span {
    padding-left: 25%;
  }
  .hero .intro {
    padding-top: 24px;
  }
}
/* スマホFV：冬の宿泊02＋写真の上辺をまたぐ黒い縦組み */
.hero-photo-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
}
.hero-photo-frame picture {
  display: block;
  width: 100%;
  height: 100%;
}
@media (max-width: 767px) {
  .hero-photo {
    overflow: visible;
    clip-path: none;
  }
  .js .hero-stage[data-fold]:not(.is-in) .hero-photo {
    clip-path: none;
    opacity: 1;
  }
  .hero-photo img {
    object-position: 35% 50%;
    filter: brightness(1.12);
  }
  .hero-title {
    color: #111;
    text-shadow: none;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .has-copy-fade:not(.is-copy-shown) .hero-title {
    opacity: 0;
  }
}
.c-snow-layer {
  display: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  contain: layout paint;
}
.c-snow-particle {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  will-change: transform;
  opacity: 0;
}
.c-snow-crystal {
  display: block;
  width: 100%;
  height: 100%;
  color: #fff;
  filter: drop-shadow(0 0 0.5px rgba(81, 116, 139, 0.35));
}
@media (max-width: 767px) {
  .c-snow-layer {
    display: block;
  }
}
.month-nav-slot {
  display: contents;
}
@media (max-width: 767px) {
  .month-nav-slot {
    display: block;
    margin-top: 32px;
  }
  .month-nav-slot .month-nav ol {
    margin-top: 0;
  }
  .month-nav.is-pinned {
    position: fixed;
    z-index: 25;
    top: var(--c-header-height, 80px);
    left: 0;
    right: 0;
    padding-inline: var(--gutter);
    background: var(--gold-tint);
  }
  html.is-locked .month-nav.is-pinned {
    right: var(--sbw, 0px);
  }
  .month-head {
    top: calc(var(--c-header-height, 80px) + var(--c-month-nav-height, 74px) + 16px);
  }
  .month,
  .topic {
    scroll-margin-top: calc(var(--c-header-height, 80px) + var(--c-month-nav-height, 74px) + 16px);
  }
}
.pc-identity {
  display: none;
}
/* hiddenは公開状態の唯一の指定。レイアウト指定より優先する。 */
[hidden] {
  display: none !important;
}
/* JSが利用できない場合は本文と月リンクから閲覧できる。 */
html:not(.js) .hero-stage .fold-photo,
html:not(.js) .topic-photo .fold-photo {
  transition: none;
}
html:not(.js) .menu-open {
  display: none;
}

/* PC・タブレット（768px以上）。FV、月ナビ、特集、メニューの各部をここで調整する。 */
@media (min-width: 768px) {
  /* 基本 */
  :root {
    --gutter: 40px;
    --logo-w: 200px;
    --c-inset: max(clamp(24px, 5.47vw, 56px), calc((100% - 1280px) / 2));
    --c-pc-photo-start: clamp(240px, 20.6vw, 440px);
  }

  /* ヘッダー */
  .site-header {
    margin: 0;
    left: 0;
    right: 0;
    width: auto;
    max-width: none;
    min-height: 96px;
    padding: 26px 32px 0;
  }
  .site-header .brand {
    display: none;
  }
  .site-header.is-scrolled .brand {
    display: block;
  }

  /* メインビジュアル */
  .hero-stage {
    position: absolute;
    z-index: 0;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    container-type: normal;
  }
  .hero .intro p {
    font-size: clamp(16px, 1.05vw, 20px);
    line-height: 2.4;
    letter-spacing: 0.02em;
  }
  .hero {
    position: relative;
    display: block;
    isolation: isolate;
    padding: 0;
    height: 100svh;
    min-height: 740px;
    background: #fff;
    container-type: normal;
    clip-path: inset(0);
  }
  .hero .intro {
    isolation: isolate;
    position: absolute;
    z-index: 4;
    left: clamp(24px, 3.5vw, 68px);
    top: 69%;
    width: max-content;
    max-width: calc(100% - 48px);
    margin: 0;
    padding: 0;
    border: 0;
    text-align: left;
  }
  .hero .intro::before {
    display: none;
  }
  .hero-photo-frame {
    position: fixed;
    inset: 0 0 auto var(--c-pc-photo-start);
    width: auto;
    height: max(740px, 100svh);
    aspect-ratio: auto;
    rotate: none;
    clip-path: none;
    opacity: 1;
    overflow: hidden;
    transition: none;
  }
  .js .hero-stage[data-fold]:not(.is-in) .hero-photo-frame {
    clip-path: none;
    opacity: 1;
  }
  .hero-photo {
    position: absolute;
    left: var(--c-pc-photo-start);
    right: 0;
    top: 0;
    width: auto;
    height: 100%;
    margin: 0;
    aspect-ratio: auto;
    container-type: normal;
    rotate: none;
    overflow: visible;
    clip-path: none;
  }
  .hero-photo img {
    height: 108%;
    object-fit: cover;
    object-position: 35% 0%;
    filter: brightness(1.1);
  }
  .hero-title {
    z-index: 3;
    top: 27%;
    right: clamp(28px, 4.6vw, 88px);
    rotate: 0deg;
    color: #111;
    text-shadow: none;
    font-size: clamp(32px, 3vw, 40px);
    line-height: 1.85;
    letter-spacing: 0.1em;
  }
  .hero-title .hero-mainline {
    display: inline;
  }
  .hero-sub {
    font-size: 0.68em;
  }
  .hero .sq-corner {
    display: none;
  }
  .hero-english {
    position: absolute;
    z-index: 3;
    display: block;
    left: calc(var(--c-pc-photo-start) + 32px);
    top: auto;
    bottom: 24px;
    width: auto;
    margin: 0;
    padding: 0;
    color: #fff;
    font-family: 'Playfair Display', serif;
    font-size: clamp(48px, 4.6vw, 88px);
    font-style: italic;
    font-weight: 400;
    line-height: 1;
    letter-spacing: 0;
    white-space: nowrap;
    pointer-events: none;
  }
  .hero-english span {
    display: inline;
  }
  .hero-english span + span {
    padding-left: 0.22em;
  }
  .hero .intro-line {
    display: inline-block;
    white-space: nowrap;
  }
  .hero .intro br {
    display: initial;
  }
  .pc-identity {
    position: absolute;
    z-index: 1;
    /* 正方形同士の乗算をこのグループ内に限定する。 */
    isolation: isolate;
    pointer-events: none;
    display: block;
    top: 0;
    left: 0;
    width: min(36vw, 620px, 68svh);
    aspect-ratio: 610/564;
  }
  .pc-square {
    position: absolute;
    z-index: 4;
    display: block;
    aspect-ratio: 1;
    pointer-events: none;
  }
  .pc-terra {
    left: 0;
    top: 34%;
    width: 56%;
    --pc-rot: -16deg;
    rotate: var(--pc-rot);
    background: var(--terra);
    opacity: 0.9;
  }
  /* 中央の正方形は乗算、その上の正方形は通常合成。 */
  .pc-cyan {
    left: 44%;
    top: 22%;
    width: 41%;
    --pc-rot: 28deg;
    rotate: var(--pc-rot);
    background: #fdc138;
    opacity: 0.7;
    mix-blend-mode: multiply;
  }
  .pc-mint {
    left: 67%;
    top: 0;
    width: 31%;
    --pc-rot: -28deg;
    rotate: var(--pc-rot);
    background: #3cc4bc;
    opacity: 0.75;
    mix-blend-mode: normal;
  }
  .pc-brand {
    position: absolute;
    z-index: 5;
    pointer-events: auto;
    left: 10%;
    top: 57%;
    width: 33%;
    aspect-ratio: 1182/877;
  }
  .pc-brand img {
    position: absolute;
    width: calc(100% * 1566 / 1182);
    max-width: none;
    left: calc(-100% * 192 / 1182);
    top: calc(-100% * 192 / 877);
  }
  .hero-stage .fold-photo,
  .hero-stage .sq {
    transition: none;
  }
  .js .hero-stage[data-fold]:not(.is-in) .fold-photo {
    clip-path: none;
    opacity: 1;
  }
  .c-snow-layer {
    display: block;
  }

  /* 特集カレンダー・月ナビ */
  .topics {
    scroll-margin-top: 112px;
    padding-bottom: 0;
  }
  .topics-heading h2 {
    margin: 10px 0 12px;
    font-size: clamp(24px, 2.1vw, 30px);
    letter-spacing: 0.08em;
  }
  .month-nav ol {
    max-width: none;
    margin: 0;
  }
  .calendar {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
    column-gap: clamp(20px, 3.9vw, 56px);
    padding: 52px var(--c-inset) 48px;
  }
  .topics-heading {
    text-align: left;
  }
  .topics-heading p:last-child {
    font-size: 16px;
    line-height: 1.9;
  }
  .month-nav a {
    min-height: 100px;
    gap: 8px;
    font-size: 25px;
    letter-spacing: 0.12em;
  }
  .month-nav span {
    font-size: 16px;
  }
  .month-nav a:hover {
    background: rgba(255, 255, 255, 0.65);
  }
  .month-nav a:focus-visible {
    outline: 2px solid var(--terra);
    outline-offset: 4px;
  }
  .month-nav-slot {
    display: block;
    min-width: 0;
  }
  .month-nav.is-pinned {
    position: fixed;
    z-index: 31;
    top: 14px;
    left: 264px;
    right: 96px;
    max-width: 640px;
    margin-inline: auto;
    background: #fff;
  }
  html.is-locked .month-nav.is-pinned {
    right: calc(96px + var(--sbw, 0px));
  }
  .month-nav.is-pinned ol {
    margin: 0;
    border-top: 0;
    border-bottom: 0;
  }
  .month-nav.is-pinned a {
    min-height: 68px;
    gap: 2px;
    font-size: 20px;
    letter-spacing: 0.06em;
  }
  .month-nav.is-pinned span {
    font-size: 14px;
  }

  /* 月の章 */
  .month {
    --c-month-tint: var(--gold-tint);
    max-width: none;
    margin: 0;
    padding: 104px var(--c-inset) 112px;
    grid-template-columns: clamp(56px, 6.95vw, 100px) minmax(0, 1fr);
    column-gap: clamp(24px, 4.45vw, 64px);
    background: linear-gradient(
      90deg,
      var(--c-month-tint) 0,
      var(--c-month-tint) calc(var(--c-inset) + clamp(56px, 6.95vw, 100px) + clamp(24px, 4.45vw, 64px) - 32px),
      #fff calc(var(--c-inset) + clamp(56px, 6.95vw, 100px) + clamp(24px, 4.45vw, 64px) - 32px),
      #fff 100%
    );
    border-bottom: 1px solid var(--line);
    scroll-margin-top: 112px;
  }
  .month-name {
    font-size: 44px;
    letter-spacing: 0.2em;
  }
  .month-num {
    font-size: 15px;
    letter-spacing: 0.22em;
  }
  .month-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, max(260px, 45%)), 1fr));
    gap: 96px clamp(28px, 3.9vw, 56px);
    align-items: stretch;
  }
  .month-head {
    top: 112px;
    justify-self: center;
    gap: 24px;
  }

  /* 特集記事 */
  .topic + .topic {
    margin-top: 0;
  }
  .topic {
    min-width: 0;
    scroll-margin-top: 112px;
  }
  .topic-photo {
    margin-top: 52px;
  }
  .topic-copy {
    padding-top: 24px;
    display: flex;
    flex: 1;
    flex-direction: column;
  }
  .topic h4 {
    margin: 10px 0 14px;
    font-size: clamp(22px, 1.81vw, 26px);
    line-height: 1.65;
    letter-spacing: 0.06em;
  }
  .description {
    font-size: 16px;
    line-height: 1.95;
  }
  .topic-link {
    padding-bottom: 4px;
    min-height: 60px;
    margin-top: auto;
    padding: 8px 0;
    font-family: var(--serif);
    font-weight: 500;
    font-size: 20px;
    line-height: 1.6;
  }
  .month-body:has(> .topic:nth-child(5)) > .topic:first-child,
  .month-body:not(:has(> .topic:not([hidden]) ~ .topic:not([hidden]))) > .topic:not([hidden]) {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, max(320px, 45%)), 1fr));
    align-items: center;
    column-gap: clamp(44px, 5vw, 88px);
  }
  .month-body:has(> .topic:nth-child(5)) > .topic:first-child .topic-copy,
  .month-body:not(:has(> .topic:not([hidden]) ~ .topic:not([hidden]))) > .topic:not([hidden]) .topic-copy {
    padding-top: 40px;
  }
  .month-body:has(> .topic:nth-child(5)) > .topic:first-child h4,
  .month-body:not(:has(> .topic:not([hidden]) ~ .topic:not([hidden]))) > .topic:not([hidden]) h4 {
    font-size: clamp(27px, 2.2vw, 32px);
  }
  .topic:not([hidden]) {
    display: flex;
    flex-direction: column;
  }
  .topic-copy .description {
    margin-bottom: 24px;
  }
  .topic-link .ico-book {
    width: 24px;
    height: 24px;
  }

  /* 会員案内・フッター */
  .rewards {
    padding: 56px 64px 60px;
  }
  .rewards-logo {
    width: 250px;
  }
  .rewards h2 {
    font-size: 22px;
  }
  .footer-legal {
    padding-block: 40px 32px;
  }
  .footer-legal .copyright br {
    display: none;
  }

  /* 展開メニュー */
  .picker-head {
    width: 100%;
    max-width: none;
    min-height: 80px;
    margin: 0;
    padding: 26px 32px 16px;
  }
  .picker {
    inset: 0 0 0 auto;
    width: max(320px, 40vw);
    max-width: none;
    height: 100dvh;
    max-height: 100dvh;
    margin: 0;
    scrollbar-gutter: stable;
  }
  .picker::backdrop {
    background: #162c3659;
  }
  .picker-head .brand {
    display: none;
  }
  .picker-inner {
    max-width: none;
    padding: 28px 32px 40px;
  }
  .picker-title {
    font-size: 26px;
  }

  /* ページ上部へ戻る */
  .page-top {
    right: calc(28px + env(safe-area-inset-right, 0px));
    bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  }
}

@media (min-width: 768px) and (max-width: 1535px) {
  .hero-title {
    top: min(40%, calc(100% - 13.5em));
  }
}
@media (min-width: 768px) and (max-width: 1099px) {
  .hero .intro {
    width: calc(var(--c-pc-photo-start) - 48px);
    max-width: none;
  }
  .hero .intro p {
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0;
  }
  .hero .intro-line {
    display: inline;
    white-space: normal;
  }
}
@media (min-width: 768px) and (prefers-reduced-motion: no-preference) {
  html.is-locked .hero-photo-frame {
    right: var(--sbw, 0px);
  }
  .pc-square {
    transition:
      translate 1s var(--ease) var(--pc-delay, 0s),
      rotate 1s var(--ease) var(--pc-delay, 0s),
      opacity 0.7s ease var(--pc-delay, 0s);
  }
  .pc-cyan {
    --pc-delay: 0.14s;
  }
  .pc-mint {
    --pc-delay: 0.28s;
  }
  .pc-brand {
    transition: opacity 0.5s ease 0.2s;
  }
  .js .pc-identity:not(.is-in) .pc-square {
    opacity: 0;
    translate: 0 -28px;
    rotate: calc(var(--pc-rot) + 40deg);
  }
  .js .pc-identity:not(.is-in) .pc-brand {
    opacity: 0;
  }
}
@media (min-width: 768px) and (prefers-reduced-motion: reduce) {
  .hero-photo-frame {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }
}