:root {
  --kinari: #F6F1E7;
  --kuri: #5A3A28;
  --kaki: #C8642E;
  --ho: #C9A86A;
  --ink: #2E2620;
  --white: #FFFFFF;
  --paper: color-mix(in srgb, var(--white) 55%, var(--kinari));
  --shadow: color-mix(in srgb, var(--ink) 16%, transparent);
  --en: "Cormorant Garamond", serif;
  --ja: "Shippori Mincho", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  display: flex;
  background: var(--kinari);
  color: var(--ink);
  font-family: var(--ja);
  font-size: 14px;
  line-height: 28px;
  font-weight: 400;
  letter-spacing: 1px;
  font-variant-numeric: lining-nums;
}
.lead, .body, .card-name, .detail h1, .modal-title, .snap-item p, .pin-title { word-break: auto-phrase; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* ===== PC：左右のパネル ===== */
.side { position: sticky; top: 0; z-index: 2; height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 32px; padding: 48px 32px; }
.side-l { flex: 1; }
.side-r { flex: 0 0 280px; }
.side-brand { writing-mode: vertical-rl; font-family: var(--en); font-size: 48px; line-height: 56px; letter-spacing: 16px; color: var(--kuri); }
.side-sub { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 6px; color: var(--kaki); }
.side-season { writing-mode: vertical-rl; font-size: 22px; line-height: 40px; letter-spacing: 8px; font-weight: 500; color: var(--kuri); }

/* 右パネルのナビ：破線で区切ったボタン型 */
.side-nav { width: 216px; border-top: 1px dashed var(--ho); }
.side-link {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 16px 16px; border-bottom: 1px dashed var(--ho);
  color: var(--kuri); text-decoration: none;
  transition: background-color .3s, color .3s, padding .4s cubic-bezier(.2, .8, .2, 1);
}
.side-link:hover { background: var(--white); color: var(--kaki); padding-left: 24px; }
.side-link-en { font-family: var(--en); font-size: 18px; line-height: 24px; letter-spacing: 2px; }
.side-link-ja { font-size: 12px; line-height: 24px; letter-spacing: 1px; color: var(--ink); opacity: .64; }

/* PCのみ：背景に水彩の山（下から生成りに溶ける） */
.wash { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.wash img { position: absolute; left: 0; bottom: 0; width: 100%; height: 72%; object-fit: cover; object-position: 50% 70%; opacity: .7; -webkit-mask-image: linear-gradient(to bottom, transparent, var(--white) 40%); mask-image: linear-gradient(to bottom, transparent, var(--white) 40%); }

/* PCのみ：紅葉と栗が上から舞い落ちる（JSで生成。中央カラムの後ろを通る） */
.fall { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.fall svg { position: absolute; top: -80px; animation: fall linear infinite; }
@keyframes fall {
  0% { transform: translate(0, 0) rotate(var(--r0)); }
  25% { transform: translate(var(--sx), 25vh) rotate(calc(var(--r0) + 60deg)); }
  50% { transform: translate(0, 50vh) rotate(calc(var(--r0) + 120deg)); }
  75% { transform: translate(calc(var(--sx) * -1), 75vh) rotate(calc(var(--r0) + 180deg)); }
  100% { transform: translate(0, calc(100vh + 160px)) rotate(calc(var(--r0) + 240deg)); }
}

/* ===== 下線アニメーション ===== */
.u {
  font-family: var(--en); font-size: 18px; line-height: 32px; letter-spacing: 4px;
  color: var(--ink); text-decoration: none;
  background: linear-gradient(var(--kuri), var(--kuri)) right bottom / 0 1px no-repeat;
  transition: background-size .5s cubic-bezier(.2, .8, .2, 1), color .3s;
}
.u:hover { background-size: 100% 1px; background-position: left bottom; color: var(--kuri); }

/* ===== 中央カラム ===== */
main { position: relative; z-index: 1; width: 480px; background: var(--paper); }
.sec { position: relative; padding: 96px 40px; }
.en { font-family: var(--en); font-size: 36px; line-height: 40px; letter-spacing: 4px; font-weight: 400; color: var(--kuri); text-align: center; }
.en-sub { font-size: 12px; line-height: 24px; letter-spacing: 4px; color: var(--ho); text-align: center; margin-top: 8px; }
.lead { font-size: 18px; line-height: 36px; letter-spacing: 2px; font-weight: 500; text-align: center; margin-top: 40px; }
.body { margin-top: 24px; line-height: 32px; letter-spacing: 2px; }

/* ===== 演出ラベル（Lキーで表示） ===== */
.tags { position: absolute; top: 24px; left: 16px; right: 16px; z-index: 6; display: none; flex-wrap: wrap; gap: 8px; pointer-events: none; }
.show-tags .tags { display: flex; }
.tag { background: var(--kuri); color: var(--white); font-size: 12px; line-height: 16px; letter-spacing: 1px; padding: 8px 16px; }
.tag small { font-family: var(--en); font-size: 14px; margin-left: 8px; opacity: .8; }
.tags-global { position: fixed; top: auto; left: 24px; right: auto; bottom: 24px; max-width: 560px; z-index: 70; }
.tags-global .tag { background: var(--ink); }

/* ===== ローディング画面 ===== */
.loader { position: fixed; inset: 0; z-index: 100; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; background: var(--kinari); transition: opacity .8s ease, visibility .8s; }
.loader.is-done { opacity: 0; visibility: hidden; }
.loader-sub { font-size: 12px; line-height: 24px; letter-spacing: 4px; color: var(--kaki); }
.loader-brand { font-family: var(--en); font-size: 22px; line-height: 32px; letter-spacing: 12px; color: var(--kuri); }
.loader-num { font-family: var(--en); font-size: 48px; line-height: 56px; color: var(--ink); }
.loader-bar { width: 200px; height: 1px; background: var(--ho); }
.loader-fill { width: 0; height: 1px; background: var(--kaki); }
.loader .tags { top: 24px; }

/* ===== ページ遷移の幕 ===== */
.curtain { position: fixed; inset: 0; z-index: 95; display: flex; align-items: center; justify-content: center; background: var(--kaki); color: var(--paper); transform: translateY(100%); transition: transform .8s cubic-bezier(.7, 0, .2, 1); }
.curtain.is-in { transform: none; }
.curtain.is-out { transform: translateY(-100%); }
.curtain-brand { font-family: var(--en); font-size: 28px; line-height: 40px; letter-spacing: 16px; }
.curtain .tags { top: 24px; }
.curtain .tag { background: var(--white); color: var(--kaki); }

/* ===== マウスストーカー ===== */
.cursor { position: fixed; top: 0; left: 0; z-index: 90; width: 32px; height: 32px; border: 1px solid var(--kuri); border-radius: 50%; pointer-events: none; opacity: 0; transition: width .4s, height .4s, background-color .4s, opacity .3s; }
.cursor.is-on { opacity: 1; }
.cursor.is-hover { width: 72px; height: 72px; background: color-mix(in srgb, var(--kuri) 12%, transparent); }

/* ===== 追従ヘッダー＋スクロールプログレスバー ===== */
.header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; height: 64px; padding: 0 24px; transition: background-color .4s, box-shadow .4s; }
.header.is-scrolled { background: var(--paper); box-shadow: 0 1px 0 var(--ho); }
.logo { font-family: var(--en); font-size: 22px; line-height: 32px; letter-spacing: 6px; color: var(--kuri); }
.header-link { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 4px; }
.progress { position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--kaki); }
.header .tags { top: 72px; }

/* ===== ボタン（マグネティック＋リップル） ===== */
.btn {
  position: relative; overflow: hidden; display: inline-block;
  padding: 16px 40px; border: 1px solid var(--kaki);
  background: var(--kaki); color: var(--white);
  font-size: 16px; line-height: 24px; letter-spacing: 2px; font-weight: 500; text-decoration: none;
  transition: transform .5s cubic-bezier(.2, .8, .2, 1), background-color .4s, color .4s;
}
.btn:hover { background: var(--white); color: var(--kaki); }
.btn-label { position: relative; z-index: 1; }
.rp { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--white); opacity: .7; pointer-events: none; animation: ripple .9s ease-out forwards; }
@keyframes ripple { to { transform: scale(40); opacity: 0; } }

/* ===== ヒーロー（グラデーション＋ふわふわ） ===== */
.hero {
  position: relative; margin-top: -64px; padding: 96px 32px 80px; text-align: center;
  background: linear-gradient(160deg, var(--kinari), var(--paper), color-mix(in srgb, var(--ho) 50%, var(--paper)), var(--kinari), color-mix(in srgb, var(--kaki) 22%, var(--paper)));
  background-size: 300% 300%;
  animation: grad 12s ease-in-out infinite;
}
@keyframes grad { 0%, 100% { background-position: 0% 0%; } 50% { background-position: 100% 100%; } }
.hero .tags { top: 72px; }
.hero-en { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 6px; color: var(--kuri); }
.hero-arch { position: relative; height: 480px; margin: 24px 24px 0; overflow: hidden; border-radius: 999px 999px 0 0; outline: 1px solid var(--white); outline-offset: -12px; }
.slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1.4s ease; }
.slide.is-active { opacity: 1; animation: zoom 5s ease-out forwards; }
@keyframes zoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero-copy { position: absolute; top: 160px; right: 24px; z-index: 2; writing-mode: vertical-rl; font-size: 28px; line-height: 48px; letter-spacing: 8px; font-weight: 500; color: var(--kuri); text-shadow: 0 0 8px var(--paper), 0 0 16px var(--paper); }
.hero-float { position: absolute; left: 16px; top: 400px; z-index: 2; width: 136px; height: 136px; object-fit: cover; border-radius: 50%; border: 4px solid var(--white); box-shadow: 0 16px 24px var(--shadow); animation: floaty 5s ease-in-out infinite; }
.hero-float2 { left: auto; right: 8px; top: 72px; width: 96px; height: 96px; animation-duration: 6s; animation-delay: -2s; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
.hero-note { font-size: 16px; line-height: 32px; letter-spacing: 2px; margin: 40px 0 32px; }

/* ===== マーキー（山の稜線にそって言葉が流れる） ===== */
.ridge { position: relative; padding: 40px 0 24px; background: var(--paper); }
.ridge svg { display: block; width: 100%; height: 160px; overflow: visible; }
.ridge-line { fill: none; stroke: var(--ho); stroke-width: 1; }
.ridge-hill { fill: color-mix(in srgb, var(--ho) 14%, transparent); }
.ridge-text { font-family: var(--ja); font-size: 16px; letter-spacing: 4px; fill: var(--kuri); }
.ridge .tags { top: -32px; }

/* ===== スクロールでフェードイン ===== */
.fade { opacity: 0; transform: translateY(40px); transition: opacity 1.2s ease, transform 1.2s cubic-bezier(.2, .8, .2, 1); }
.fade.is-in { opacity: 1; transform: none; }

/* ===== コンセプト（パララックス＋マーカー） ===== */
.para { position: relative; height: 480px; margin-top: 48px; overflow: hidden; border-radius: 999px 999px 0 0; }
.para-bg { position: absolute; top: -80px; left: 0; width: 100%; height: 640px; object-fit: cover; }
.para-mark { position: absolute; right: 32px; bottom: 32px; width: 120px; height: 120px; object-fit: cover; border-radius: 50%; border: 4px solid var(--white); }
.mark { background: linear-gradient(color-mix(in srgb, var(--ho) 55%, transparent), color-mix(in srgb, var(--ho) 55%, transparent)) left 90% / 0 40% no-repeat; transition: background-size 1.4s cubic-bezier(.2, .8, .2, 1) .4s; }
.mark.is-in { background-size: 100% 40%; }

/* ===== 商品（浮き上がる・ズーム・遅延読み込み） ===== */
.products { display: grid; gap: 40px; margin-top: 48px; }
.card-area { font-size: 12px; line-height: 24px; letter-spacing: 2px; color: var(--kaki); margin-top: 16px; }
.card { background: var(--white); padding: 24px 24px 32px; text-align: center; transition: transform .5s cubic-bezier(.2, .8, .2, 1), box-shadow .5s; }
.card:hover { transform: translateY(-8px); box-shadow: 0 24px 40px var(--shadow); }
.ph { position: relative; height: 400px; overflow: hidden; border-radius: 999px 999px 0 0; background: var(--kinari); }
.ph.is-wait { background: linear-gradient(100deg, var(--kinari), var(--paper), var(--kinari)); background-size: 200% 100%; animation: shimmer 1.2s linear infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }
.ph img { width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1s ease, transform 1.2s cubic-bezier(.2, .8, .2, 1); }
.ph img.is-loaded { opacity: 1; }
.card:hover .ph img { transform: scale(1.08); }
.card-tag { display: inline-block; margin-top: 24px; padding: 0 16px; border: 1px solid var(--ho); font-family: var(--en); font-size: 14px; line-height: 32px; letter-spacing: 4px; color: var(--kuri); }
.card-name { font-size: 18px; line-height: 32px; letter-spacing: 2px; font-weight: 500; margin-top: 16px; }
.card-price { font-family: var(--en); font-size: 18px; line-height: 24px; color: var(--kuri); margin-top: 8px; }
.more { text-align: center; margin-top: 48px; }

/* ===== ピン留め ===== */
.pin { position: relative; height: 360vh; background: var(--kuri); color: var(--white); }
.pin-inner { position: sticky; top: 0; height: 100vh; padding: 88px 40px 40px; display: flex; flex-direction: column; overflow: hidden; }
.pin .en, .pin .en-sub { color: var(--white); }
.pin .en-sub { color: var(--ho); }
.pin-stage { position: relative; flex: 1; margin-top: 32px; }
.pin-card { position: absolute; inset: 0; display: flex; flex-direction: column; opacity: 0; transform: translateY(40px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.pin-card.is-active { opacity: 1; transform: none; }
.pin-card img { flex: 1; min-height: 0; width: 100%; object-fit: cover; border-radius: 999px 999px 0 0; }
.pin-no { font-family: var(--en); font-size: 48px; line-height: 56px; margin-top: 16px; }
.pin-title { font-size: 18px; line-height: 32px; font-weight: 500; letter-spacing: 2px; }
.pin-count { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 4px; text-align: right; margin-top: 16px; }

/* ===== 横スクロール ===== */
.hs { position: relative; height: 300vh; }
.hs-inner { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; gap: 40px; }
.hs-track { display: flex; gap: 24px; width: max-content; padding: 0 40px; }
.hs-item { width: 280px; }
.hs-item img { width: 280px; height: 360px; object-fit: cover; }
.hs-item:nth-child(odd) img { border-radius: 999px 999px 0 0; }
.hs-item p { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 4px; margin-top: 16px; color: var(--kuri); }

/* ===== ビフォーアフタースライダー ===== */
.ba { position: relative; height: 480px; margin-top: 48px; overflow: hidden; user-select: none; touch-action: none; cursor: ew-resize; }
.ba-pane { position: absolute; inset: 0; }
.ba-pane img { width: 400px; height: 480px; object-fit: cover; }
.ba-before { clip-path: inset(0 50% 0 0); }
.ba-label { position: absolute; top: 16px; padding: 0 16px; background: var(--paper); font-family: var(--en); font-size: 14px; line-height: 32px; letter-spacing: 4px; color: var(--kuri); }
.ba-before .ba-label { left: 16px; }
.ba-after .ba-label { right: 16px; }
.ba-handle { position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: var(--white); }
.ba-knob { position: absolute; top: 50%; left: -32px; width: 64px; height: 64px; margin-top: -32px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--paper); font-family: var(--en); font-size: 12px; line-height: 16px; letter-spacing: 2px; color: var(--kuri); }

/* ===== スクロールスナップ ===== */
.snap { height: 480px; margin-top: 48px; overflow-y: auto; scroll-snap-type: y mandatory; background: var(--white); }
.snap-item { height: 480px; scroll-snap-align: start; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 32px; text-align: center; }
.snap-no { font-family: var(--en); font-size: 72px; line-height: 72px; color: var(--kuri); }
.snap-title { font-size: 18px; line-height: 32px; font-weight: 500; letter-spacing: 2px; margin: 16px 0 8px; }
.snap-item img { width: 160px; height: 200px; object-fit: cover; margin-top: 24px; border-radius: 999px 999px 0 0; }

/* ===== 無限スクロール ===== */
.journal { height: 480px; margin-top: 48px; overflow-y: auto; background: var(--white); padding: 0 24px; }
.j-item { padding: 24px 0; border-bottom: 1px solid var(--ho); animation: jin .7s ease-out both; }
@keyframes jin { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.j-date { font-family: var(--en); font-size: 14px; line-height: 24px; letter-spacing: 2px; color: var(--kuri); }
.j-loading { padding: 24px 0 32px; text-align: center; font-family: var(--en); font-size: 14px; line-height: 24px; letter-spacing: 6px; color: var(--kuri); opacity: 0; transition: opacity .3s; }
.j-loading.is-on { opacity: 1; }
.j-count { font-size: 12px; line-height: 24px; margin-top: 16px; text-align: right; color: var(--kuri); }

/* ===== CTA ===== */
.cta { position: relative; text-align: center; background: linear-gradient(to bottom, var(--paper), var(--kinari)); }
.cta-big { font-family: var(--en); font-size: 72px; line-height: 80px; letter-spacing: 8px; color: color-mix(in srgb, var(--ho) 55%, transparent); }
.cta-ja { font-size: 22px; line-height: 32px; letter-spacing: 6px; font-weight: 500; color: var(--kuri); margin-top: -96px; padding-bottom: 64px; }
.cta-photo { width: 256px; height: 320px; object-fit: cover; margin: 40px auto; border-radius: 999px 999px 0 0; outline: 1px solid var(--white); outline-offset: -8px; }

footer { padding: 56px 40px; text-align: center; font-size: 12px; line-height: 24px; }
.footer-logo { font-family: var(--en); font-size: 22px; line-height: 32px; letter-spacing: 8px; color: var(--kuri); margin-bottom: 16px; }

/* ===== 離脱防止ポップアップ ===== */
.modal { position: fixed; inset: 0; z-index: 80; display: flex; align-items: center; justify-content: center; background: color-mix(in srgb, var(--ink) 40%, transparent); opacity: 0; pointer-events: none; transition: opacity .5s; }
.modal.is-open { opacity: 1; pointer-events: auto; }
.modal-box { position: relative; width: 400px; padding: 48px 40px 40px; background: var(--paper); text-align: center; transform: translateY(32px); transition: transform .6s cubic-bezier(.2, .8, .2, 1); }
.modal.is-open .modal-box { transform: none; }
.modal-box .tags { top: -48px; left: 0; right: auto; }
.modal-en { font-family: var(--en); font-size: 16px; line-height: 24px; letter-spacing: 6px; color: var(--kuri); }
.modal-box .modal-title { font-size: 22px; line-height: 40px; font-weight: 500; letter-spacing: 2px; margin: 16px 0; }
.modal-close { display: block; margin: 16px auto 0; font-size: 12px; line-height: 24px; letter-spacing: 2px; border-bottom: 1px solid var(--ho); }

/* ===== 詳細ページ ===== */
.detail { padding: 24px 40px 96px; text-align: center; }
.detail-photo { width: 100%; height: 520px; object-fit: cover; border-radius: 999px 999px 0 0; outline: 1px solid var(--white); outline-offset: -12px; }
.detail h1 { font-size: 22px; line-height: 40px; font-weight: 500; letter-spacing: 2px; margin-top: 16px; }
.spec { margin: 32px 0 40px; border-top: 1px solid var(--ho); text-align: left; }
.spec li { padding: 16px 0; border-bottom: 1px solid var(--ho); }

@media (max-width: 1000px) {
  .side, .fall, .wash { display: none; }
  main { width: 100%; max-width: 480px; margin: 0 auto; }
}