@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Playfair+Display:wght@600;700&display=swap');
:root {
 --navy: #011E46;
 --navy-light: #0A2E63;
 --navy-panel: #07264F;
 --orange: #C44602;
 --orange-bright: #CC4E00;
 --yellow: #F4C302;
 --ivory: #FFFDF5;
 --cream: #F1EFC0;
 --teal: #156082;
 --teal-hover: #1D7AA5;
 --red: #CC0000;
 --sta-nishiogi: #4CA626;
 --sta-ogikubo: #F4C302;
 --sta-asagaya: #8B059C;
 --sta-koenji: #CC4E00;
 --sta-nakano: #CC0000;
 --text-dark: #24211C;
 --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
 --font-num: "Playfair Display", "Times New Roman", serif;
}
* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
}
html {
 scroll-behavior: smooth;
}
body {
 font-family: var(--font-sans);
 background-color: var(--navy);
 color: #fff;
 font-size: clamp(14px, 1.4vw, 16px);
 line-height: 1.9;
 letter-spacing: 0.04em;
 -webkit-font-smoothing: antialiased;
}
img {
 max-width: 100%;
 height: auto;
 vertical-align: bottom;
}
a {
 text-decoration: none;
 color: inherit;
}
ul, ol {
 list-style: none;
}
.num {
 font-family: var(--font-num);
 font-weight: 700;
}
.sp {
 display: none;
}
#container {
 overflow-x: clip;
 position: relative;
 /* 幕が消えるのと入れ替わりでふわっと表示。both で遅延中は opacity:0 を保つ */
 animation: page-in 0.8s ease-out 1.2s both;
}
@keyframes page-in {
 from { opacity: 0; }
 to { opacity: 1; }
}
/* ============ ローディング ============ */
/* CSSアニメーションだけで完結させる（JSが止まっても画面がロックしない）。
   画像は出だしだけ 24px 持ち上げ、消えるときはその場で opacity のみ。幕は画像が消え切った 1.2s から抜ける */
.loading {
 position: fixed;
 inset: 0;
 z-index: 1000;
 background: var(--navy);
 display: flex;
 align-items: center;
 justify-content: center;
 animation: loading-out 0.3s ease 1.2s forwards;
}
.loading-img {
 width: clamp(200px, 40vw, 340px);
 height: auto;
 animation: loading-fade 1.2s ease forwards;
}
@keyframes loading-fade {
 /* transform は 20% で終わるので、以降は translateY(0) のまま動かない */
 0% { transform: translateY(24px); opacity: 0; }
 20% { transform: translateY(0); opacity: 1; }
 62% { opacity: 1; }
 100% { opacity: 0; }
}
@keyframes loading-out {
 to { opacity: 0; visibility: hidden; }
}
/* ============ セクション共通 ============ */
.section {
 position: relative;
 padding: clamp(56px, 8vw, 104px) clamp(20px, 4vw, 48px);
}
/* ============ 追従SNSバッジ（fixed・スクロールで表示） ============ */
.sns-float {
 position: fixed;
 top: clamp(12px, 2vw, 24px);
 right: clamp(12px, 2vw, 24px);
 z-index: 100;
 display: flex;
 align-items: center;
 opacity: 0;
 transform: translateY(-120%);
 pointer-events: none;
 transition: opacity 0.3s, transform 0.3s;
}
.sns-float.is-visible {
 opacity: 1;
 transform: translateY(0);
 pointer-events: auto;
}
.sns-float-icon {
 width: clamp(40px, 4.5vw, 56px);
 height: auto;
 border-radius: 22%;
 box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
 transition: transform 0.25s;
}
.sns-float:hover .sns-float-icon {
 transform: scale(1.08);
}
/* ============ 公式SNSバッジ（hero-kvドッキング・初期表示） ============ */
/* PC: アイコン左＋吹き出し右の横並び。狭幅: 吹き出しを上・アイコンを右下にずらして重ねる。
   いずれもKV絵柄（「中央線沿線」「初開催！」）と重ならない余白帯に収める */
.hero-sns {
 position: absolute;
 top: clamp(4px, 1vw, 30px);
 right: clamp(4px, 1vw, 10px);
 z-index: 10;
 display: flex;
 align-items: flex-start;
 gap: 10px;
}
@media (min-width: 1280px) {
 .hero-sns {
  top: 40px;
  right: -80px;
 }
}
.hero-sns-icon {
 width: clamp(52px, 6.5vw, 80px);
 height: auto;
 border-radius: 22%;
 box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
 flex-shrink: 0;
 transition: transform 0.25s;
}
.hero-sns:hover .hero-sns-icon {
 transform: scale(1.06);
}
.hero-sns-bubble {
 background: var(--cream);
 color: var(--text-dark);
 font-weight: 700;
 font-size: clamp(10px, 1.1vw, 13px);
 line-height: 1.3;
 padding: 6px 12px;
 border-radius: 12px;
 position: relative;
 text-align: center;
 box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
.hero-sns-bubble::after {
 content: "";
 position: absolute;
 left: -6px;
 top: 14px;
 border-style: solid;
 border-width: 4px 6px 4px 0;
 border-color: transparent var(--cream) transparent transparent;
}
/* ============ KV ============ */
.hero {
 padding: 0;
}
.hero-inner {
 max-width: 1100px;
 margin: 0 auto;
 position: relative;
}
.hero-kv img {
 display: block;
 width: 100%;
}
/* ============ リード（KV直下） ============ */
.lead {
 max-width: 1000px;
 margin: 0 auto;
 padding: clamp(20px, 5vw, 30px) clamp(20px, 5vw, 40px) 0;
}
.lead img {
 display: block;
 width: 100%;
}
/* ============ 見出し ============ */
.section-title {
 text-align: center;
 font-size: clamp(22px, 3.4vw, 36px);
 font-weight: 900;
 line-height: 1.4em;
 letter-spacing: 0.08em;
 white-space: nowrap;
 margin-bottom: clamp(36px, 5vw, 64px);
 display: flex;
 align-items: center;
 justify-content: center;
 gap: clamp(16px, 3vw, 32px);
}
.section-title.section-title--about {
 margin-bottom: clamp(24px, 4vw, 42px);
}
/* ライン両端の四角装飾（インラインSVG＋線グラデーション）。--sq が四角の一辺、--line が線の太さ */
.section-title::before, .section-title::after {
 content: "";
 --sq: 12px;
 --line: 2px;
 flex: 0 1 clamp(48px, 8vw, 128px);
 height: var(--sq);
 background-repeat: no-repeat, no-repeat;
 background-size: calc(100% - var(--sq)) var(--line), var(--sq) var(--sq);
}
.section-title::before {
 background-image:
  linear-gradient(#fff, #fff), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Crect x='1.25' y='1.25' width='9.5' height='9.5' fill='none' stroke='%23fff' stroke-width='1.5'/%3E%3C/svg%3E");
 background-position: right center, left center;
}
.section-title::after {
 background-image:
  linear-gradient(#fff, #fff), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Crect x='1.25' y='1.25' width='9.5' height='9.5' fill='none' stroke='%23fff' stroke-width='1.5'/%3E%3C/svg%3E");
 background-position: left center, right center;
}
/* ============ 参加方法 ============ */
/* howto-step.png（3ステップ合成済み1枚）を等倍表示。PC/SPともに横並びのため分岐なし */
.howto-steps {
 max-width: 900px;
 margin: 0 auto;
}
.howto-steps img {
 display: block;
 width: 100%;
}
.howto-cta {
 text-align: center;
 margin-top: clamp(40px, 5vw, 64px);
}
.btn-primary {
 display: inline-block;
 background: var(--teal);
 color: #fff;
 font-size: clamp(17px, 2vw, 22px);
 font-weight: 700;
 letter-spacing: 0.1em;
 padding: clamp(16px, 2vw, 20px) clamp(48px, 7vw, 88px);
 border-radius: 999px;
 box-shadow: 0 4px 0 rgba(0, 0, 0, 0.35);
 position: relative;
 transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
}
.btn-primary::after {
 content: "";
 position: absolute;
 right: clamp(20px, 2.5vw, 28px);
 top: 50%;
 width: 8px;
 height: 8px;
 border-top: 2px solid #fff;
 border-right: 2px solid #fff;
 transform: translateY(-50%) rotate(45deg);
}
.btn-primary:hover {
 background: var(--teal-hover);
 transform: translateY(2px);
 box-shadow: 0 2px 0 rgba(0, 0, 0, 0.35);
}
.howto-cta-note {
 margin-top: 16px;
 font-size: clamp(11px, 1.2vw, 13px);
 opacity: 0.85;
}
/* ============ 景品 ============ */
.prizes {
 background: var(--navy-panel);
}
.prizes-grid {
 display: flex;
 justify-content: center;
 gap: clamp(24px, 3vw, 40px);
 max-width: 1000px;
 margin: 0 auto;
 text-align: center;
}
.prize-card {
 flex: 1 1 0;
 max-width: 480px;
 background: var(--navy-light);
 border: 1px solid rgba(255, 255, 255, 0.14);
 border-radius: 16px;
 padding: clamp(24px, 3vw, 36px);
 display: flex;
 flex-direction: column;
}
/* .prize-num が2emで行ボックスを上に押し広げるため、flexで縦センターに揃える */
.prize-card-title {
 background: var(--ivory);
 color: var(--text-dark);
 border-radius: 999px;
 font-size: clamp(17px, 2vw, 22px);
 font-weight: 900;
 letter-spacing: 0.06em;
 padding: 10px 16px;
 margin-bottom: clamp(18px, 2vw, 26px);
 font-feature-settings: "palt"1;
 display: flex;
 align-items: center;
 justify-content: center;
 flex-wrap: wrap;
}
/* flexアイテム化で末尾の半角スペースが落ちるため、字間はCSSで確保 */
.prize-card-title small {
 font-size: 0.72em;
 font-weight: 700;
 margin-left: 0.4em;
}
.prize-num {
 font-size: 2em;
 margin-right: 4px;
 line-height: 1;
 position: relative;
 top: -6px;
}
.prize-card-lead {
 font-size: clamp(16px, 1.8vw, 20px);
 font-weight: 900;
 color: var(--yellow);
}
.prize-card-sub {
 font-size: clamp(12px, 1.3vw, 14px);
 margin-top: 6px;
}
.prize-card-sub small {
 font-size: 0.9em;
 opacity: 0.85;
}
.prize-card-img {
 margin-top: auto;
 padding-top: 20px;
 display: flex;
 justify-content: center;
 align-items: flex-end;
}
.prize-card-img img {
 max-height: clamp(160px, 20vw, 240px);
 width: auto;
}
.prizes-note {
 max-width: 1000px;
 margin: clamp(24px, 3vw, 36px) auto 0;
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 12px;
 font-weight: 700;
 font-size: clamp(13px, 1.5vw, 16px);
}
/* 三角は clip-path で作る（border三角では中に文字を置けないため） */
.prizes-note-icon {
 flex-shrink: 0;
 width: 28px;
 height: 25px;
 background: var(--yellow);
 clip-path: polygon(50% 0, 100% 100%, 0 100%);
 color: var(--text-dark);
 font-size: 13px;
 font-weight: 900;
 line-height: 1;
 display: flex;
 align-items: flex-end;
 justify-content: center;
 padding-bottom: 3px;
}
/* 代表店舗 */
.daihyo {
 max-width: 1000px;
 margin: clamp(40px, 5vw, 64px) auto 0;
 background: var(--ivory);
 color: var(--text-dark);
 border-radius: 16px;
 padding: clamp(24px, 3vw, 36px);
 display: flex;
 align-items: center;
 gap: clamp(20px, 3vw, 40px);
}
.daihyo-label {
 flex-shrink: 0;
 background: var(--orange);
 color: #fff;
 font-size: clamp(18px, 2vw, 24px);
 font-weight: 900;
 border-radius: 10px;
 padding: clamp(16px, 2vw, 24px) clamp(14px, 1.6vw, 18px);
 align-self: stretch;
 display: flex;
 align-items: center;
 justify-content: center;
}
/* 縦組み表現：1em幅で1文字ずつ折り返す（writing-mode は使わない） */
.daihyo-label-text {
 display: block;
 width: 1em;
 line-height: 1.7;
 text-align: center;
 word-break: break-all;
}
.daihyo-body {
 flex: 1;
}
.daihyo-lead {
 font-weight: 700;
 font-size: clamp(13px, 1.5vw, 16px);
 margin-bottom: 12px;
}
.daihyo-list {
 font-size: clamp(14px, 1.6vw, 17px);
 font-weight: 700;
 line-height: 2;
}
.daihyo-sta {
 color: var(--orange);
}
.daihyo-img {
 flex-shrink: 0;
 width: clamp(120px, 16vw, 200px);
}
/* ============ 参加店舗一覧 ============ */
.shops-lead {
 text-align: center;
 font-size: clamp(12px, 1.4vw, 15px);
 margin: -20px 0 28px;
 opacity: 0.9;
}
/* 駅名标 */
.sta-tabs, .map-boards {
 display: flex;
 flex-wrap: wrap;
 justify-content: center;
 gap: clamp(12px, 2vw, 24px);
 max-width: 1000px;
 margin: 0 auto;
}
.sta-board {
 flex: 1 1 0;
 min-width: 150px;
 max-width: 200px;
 background: #fff;
 border: 3px solid var(--navy);
 border-radius: 6px;
 padding: clamp(10px, 1.4vw, 16px) 8px 0;
 text-align: center;
 cursor: pointer;
 font-family: var(--font-sans);
 position: relative;
 margin-top: 18px;
 box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
 transition: transform 0.25s, box-shadow 0.25s, outline-color 0.2s;
 outline: 3px solid transparent;
 outline-offset: 2px;
 display: block;
}
/* 吊り下げ金具 */
.sta-board::before, .sta-board::after {
 content: "";
 position: absolute;
 top: -18px;
 width: 12px;
 height: 18px;
 background: #000;
}
.sta-board::before {
 left: 18%;
}
.sta-board::after {
 right: 18%;
}
.sta-board-ja {
 display: block;
 font-size: clamp(20px, 2.4vw, 30px);
 font-weight: 900;
 letter-spacing: 0.04em;
 line-height: 1.3;
 white-space: nowrap;
}
.sta-board-en {
 display: block;
 background: var(--orange-bright);
 color: #fff;
 font-size: clamp(9px, 1vw, 12px);
 letter-spacing: 0.06em;
 line-height: 1.9;
 margin: 8px -8px 0;
 border-radius: 0 0 3px 3px;
 white-space: nowrap;
}
.sta-board--nishiogi .sta-board-ja {
 color: var(--sta-nishiogi);
}
.sta-board--ogikubo .sta-board-ja {
 color: var(--sta-ogikubo);
}
.sta-board--asagaya .sta-board-ja {
 color: var(--sta-asagaya);
}
.sta-board--koenji .sta-board-ja {
 color: var(--sta-koenji);
}
.sta-board--nakano .sta-board-ja {
 color: var(--sta-nakano);
}
.sta-board:hover {
 transform: translateY(-4px);
 box-shadow: 0 8px 18px rgba(0, 0, 0, 0.45);
}
.sta-tabs .sta-board.is-active {
 outline-color: var(--yellow);
 transform: translateY(-4px);
}
/* 店舗リストパネル */
.sta-panel {
 max-width: 1000px;
 margin: clamp(28px, 4vw, 48px) auto 0;
 background: var(--ivory);
 color: var(--text-dark);
 border-radius: 16px;
 padding: clamp(24px, 3.5vw, 44px);
}
.sta-panel[hidden] {
 display: none;
}
.sta-panel-title {
 font-size: clamp(17px, 2vw, 22px);
 font-weight: 900;
 display: flex;
 align-items: center;
 gap: 10px;
 margin-bottom: clamp(16px, 2vw, 24px);
 padding-bottom: 12px;
 border-bottom: 2px dashed rgba(36, 33, 28, 0.25);
}
.sta-dot {
 width: 14px;
 height: 14px;
 border-radius: 50%;
 flex-shrink: 0;
}
.sta-dot--nishiogi {
 background: var(--sta-nishiogi);
}
.sta-dot--ogikubo {
 background: var(--sta-ogikubo);
}
.sta-dot--asagaya {
 background: var(--sta-asagaya);
}
.sta-dot--koenji {
 background: var(--sta-koenji);
}
.sta-dot--nakano {
 background: var(--sta-nakano);
}
.shop-list {
 columns: 2;
 column-gap: clamp(24px, 4vw, 56px);
 font-size: clamp(13px, 1.5vw, 15px);
 font-weight: 500;
 line-height: 2.1;
}
.shop-list li {
 break-inside: avoid;
 padding-left: 1.1em;
 position: relative;
}
.shop-list li::before {
 content: "・";
 position: absolute;
 left: 0;
 color: var(--orange);
}
.shop-list li.is-daihyo {
 font-weight: 900;
}
.shop-list li.is-daihyo::before {
 content: "★";
 color: var(--orange);
 font-size: 0.85em;
}
.shop-list li.is-daihyo::after {
 content: "（代表店舗）";
 font-size: 0.8em;
 color: var(--orange);
 font-weight: 700;
}
.btn-map {
 display: block;
 width: fit-content;
 margin: clamp(20px, 2.5vw, 28px) auto 0;
 background: var(--teal);
 color: #fff;
 font-size: clamp(13px, 1.5vw, 15px);
 font-weight: 700;
 padding: 12px 32px;
 border-radius: 999px;
 transition: background 0.25s;
}
.btn-map::after {
 content: "↗";
 margin-left: 8px;
 font-size: 0.9em;
}
.btn-map:hover {
 background: var(--teal-hover);
}
/* PCのみ：マップボタンを見出し行の右端へ。gridで配置だけ変えるためHTMLの順序はSPのまま
   （見出しは1列全幅なので点線は途切れない。ボタンは同じ行に重ねて右寄せ） */
@media (min-width: 768px) {
 .sta-panel {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: clamp(16px, 2vw, 24px);
 }
 .sta-panel-title {
  grid-area: 1 / 1;
  margin-bottom: 0;
 }
 .btn-map {
  grid-area: 1 / 1;
  justify-self: end;
  align-self: start;
  margin: -10px 0 0;
 }
 .shop-list {
  grid-area: 2 / 1;
 }
}
.shops-note {
 text-align: center;
 margin-top: clamp(20px, 3vw, 32px);
 font-size: clamp(12px, 1.4vw, 14px);
 font-weight: 700;
}
.daihyo-star {
 color: var(--yellow);
}
/* ============ マップ ============ */
.map {
 background: var(--navy-panel);
 background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px);
 background-size: 28px 28px;
}
/* ============ シークレット ============ */
.secret-inner {
 max-width: 1000px;
 margin: 0 auto;
 display: flex;
 align-items: center;
 justify-content: center;
 gap: clamp(28px, 5vw, 72px);
}
.secret-badge {
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: 12px;
 margin-bottom: 16px;
}
/* .secret-badge-num が3emで行ボックスを上に押し広げるため、flexで縦センターに揃える */
.secret-badge-limited {
 background: var(--orange);
 color: #fff;
 font-weight: 900;
 font-size: clamp(13px, 1.5vw, 16px);
 padding: 6px 18px;
 border-radius: 999px;
 white-space: nowrap;
 display: flex;
 align-items: center;
}
.secret-badge-num {
 font-size: 3em;
 margin: 0 2px;
 line-height: 1;
 position: relative;
 top: -8px;
}
.secret-badge-copy {
 font-weight: 700;
 font-size: clamp(13px, 1.5vw, 16px);
}
.secret-title {
 font-size: clamp(22px, 3vw, 34px);
 font-weight: 900;
 letter-spacing: 0.06em;
 margin-bottom: 16px;
}
.secret-desc {
 font-size: clamp(13px, 1.5vw, 16px);
}
.secret-desc strong {
 color: var(--yellow);
}
.secret-img {
 flex-shrink: 0;
 width: clamp(220px, 28vw, 360px);
}
/* ============ とは？ ============ */
.about {
 background: var(--navy-panel);
}
/* about見出しはロゴ画像1枚（「とは？」まで含む）。左右の線・四角は出さない */
.section-title--about::before, .section-title--about::after {
 content: none;
}
.about-title-logo {
 width: 100%;
 max-width: 560px;
 height: auto;
}
.about-body {
 max-width: 860px;
 margin: 0 auto;
 font-size: clamp(13px, 1.5vw, 16px);
}
.about-body p + p {
 margin-top: 1.4em;
}
.about-catch {
 font-size: clamp(16px, 2vw, 22px);
 font-weight: 900;
 line-height: 1.8;
 color: var(--yellow);
 text-align: center;
 margin-bottom: 1.8em;
}
.about-catch-num {
 font-size: 2.4em;
 margin: 0 2px;
 line-height: .5;
}
/* ============ 公式SNS ============ */
.sns-inner {
 max-width: 820px;
 margin: 0 auto;
 display: flex;
 align-items: center;
 justify-content: center;
 gap: clamp(32px, 6vw, 80px);
}
.sns-text {
 text-align: center;
}
.sns-bubble {
 display: inline-block;
 background: var(--cream);
 color: var(--text-dark);
 font-weight: 900;
 font-size: clamp(14px, 1.7vw, 18px);
 padding: 10px 28px;
 border-radius: 999px;
 position: relative;
 margin-bottom: 24px;
}
.sns-bubble::after {
 content: "";
 position: absolute;
 bottom: -8px;
 left: 50%;
 transform: translateX(-50%);
 border-style: solid;
 border-width: 9px 6px 0 6px;
 border-color: var(--cream) transparent transparent transparent;
}
.sns-account {
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 10px;
 font-size: clamp(18px, 2.2vw, 24px);
 font-weight: 700;
 letter-spacing: 0.02em;
}
.sns-account-icon {
 width: clamp(28px, 3vw, 36px);
 height: auto;
 border-radius: 22%;
}
.sns-desc {
 margin-top: 8px;
 font-size: clamp(12px, 1.4vw, 15px);
 opacity: 0.9;
}
.btn-primary--sns {
 margin-top: 24px;
 font-size: clamp(14px, 1.6vw, 17px);
 padding: 14px 56px;
}
.sns-qr {
 flex-shrink: 0;
 width: clamp(180px, 22vw, 250px);
}
.sns-qr img {
 border-radius: 12px;
 box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}
/* ============ フッター ============ */
.footer {
 background: #000E22;
 padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 48px) clamp(28px, 4vw, 40px);
 font-size: clamp(10px, 1.2vw, 12px);
}
.footer-warning {
 max-width: 820px;
 margin: 0 auto;
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 16px;
 opacity: 0.85;
}
.footer-stop {
 flex-shrink: 0;
 width: 52px;
 height: 52px;
 border-radius: 50%;
 background: var(--red);
 color: #fff;
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 font-size: 9px;
 font-weight: 900;
 line-height: 1.1;
 letter-spacing: 0.05em;
}
.footer-stop-hand {
 font-size: 14px;
}
.footer-org {
 max-width: 820px;
 margin: clamp(20px, 3vw, 28px) auto 0;
 padding-top: clamp(16px, 2vw, 24px);
 border-top: 1px solid rgba(255, 255, 255, 0.15);
 text-align: center;
 font-weight: 500;
}
.footer-org-sep {
 margin: 0 0.6em;
}
.footer-links {
 text-align: center;
 margin-top: 14px;
}
.footer-links a {
 text-decoration: underline;
 opacity: 0.8;
 transition: opacity 0.25s;
}
.footer-links a:hover {
 opacity: 1;
}
/* ============ スクロール表示アニメーション ============ */
.reveal {
 opacity: 0;
 transform: translateY(24px);
 transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.is-visible {
 opacity: 1;
 transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
 html {
  scroll-behavior: auto;
 }
 .reveal {
  opacity: 1;
  transform: none;
  transition: none;
 }
 .loading {
  display: none;
 }
 #container {
  animation: none;
 }
}
@media (max-width: 1100px) {
 .sns-float-icon {
  width: 44px;
 }
 /* 公式SNSバッジ：縦積み（吹き出し上・アイコン右下）に切り替え */
 .hero {
  padding-top: 20px;
 }
 .hero-sns {
  top: -8px;
  right: clamp(12px, 2vw, 24px);
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 7px;
 }
 .hero-sns-icon {
  width: clamp(44px, 10.18vw + 1.83px, 80px);
 }
 .hero-sns-bubble {
  padding: 5px 10px;
  white-space: nowrap;
 }
 .hero-sns-bubble-lb {
  display: none;
 }
 .hero-sns-bubble::after {
  left: auto;
  right: 16px;
  top: auto;
  bottom: -5px;
  transform: none;
  border-width: 6px 6px 0 6px;
  border-color: var(--cream) transparent transparent transparent;
 }
}
/* ============ 駅名标タブ（横5駅を維持できない幅で2段組みに切替） ============ */
/* 5駅×min-width150px＋gapが1000px上限コンテナに収まらなくなるのは実測で約893px幅。
   900pxを境に、上段2駅（高円寺・中野）／下段3駅（西荻窪・荻窪・阿佐ヶ谷）のピラミッド配置へ切替（SP専用の767pxとは別のブレークポイント） */
@media (max-width: 900px) {
 .sta-tabs, .map-boards {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px 10px;
 }
 .sta-board {
  min-width: 0;
  margin-top: 14px;
  padding-top: 8px;
 }
 .sta-board--nishiogi {
  grid-column: 1 / 3;
  grid-row: 2;
 }
 .sta-board--ogikubo {
  grid-column: 3 / 5;
  grid-row: 2;
 }
 .sta-board--asagaya {
  grid-column: 5 / 7;
  grid-row: 2;
 }
 .sta-board--koenji {
  grid-column: 2 / 4;
  grid-row: 1;
 }
 .sta-board--nakano {
  grid-column: 4 / 6;
  grid-row: 1;
 }
 .sta-board::before, .sta-board::after {
  top: -14px;
  width: 8px;
  height: 14px;
 }
 .sta-board-ja {
  font-size: clamp(15px, 4.5vw, 20px);
 }
 .sta-board-en {
  font-size: 8px;
  margin-top: 5px;
 }
}
/* ============ SP ============ */
@media (max-width: 767px) {
 .sp {
  display: inline;
 }
 .section {
  padding: 48px 20px;
 }
 .hero {
  padding-top: 40px;
 }
 /* 配置は max-width:1100px の指定を継承し、縦位置だけ調整 */
 .hero-sns {
  top: -34px;
 }
 /* 見出し */
 .section-title {
  gap: 12px;
  letter-spacing: normal;
 }
 /* 線は最低60px確保。太さは四角のstroke（--sq × 0.125）と揃える */
 .section-title::before, .section-title::after {
  --sq: 10px;
  --line: 1.25px;
  flex: 0 0 60px;
 }
 /* 景品 */
 .prizes-grid {
  flex-direction: column;
  align-items: center;
 }
 .prize-card {
  width: 100%;
 }
 .prizes-note {
  text-align: left;
 }
 /* 代表店舗 */
 .daihyo {
  flex-direction: column;
  align-items: stretch;
  text-align: center;
  gap: 20px;
 }
 .daihyo-label {
  align-self: center;
  padding: 8px 28px;
 }
 .daihyo-label-text {
  width: auto;
  letter-spacing: 0.2em;
  word-break: normal;
 }
 .daihyo-list {
  text-align: left;
  display: table;
  margin: 0 auto;
 }
 .daihyo-img {
  margin: 0 auto;
  width: 140px;
 }
 .shop-list {
  columns: 1;
 }
 /* シークレット */
 .secret-inner {
  flex-direction: column;
  text-align: center;
 }
 .secret-badge {
  justify-content: center;
 }
 .secret-img {
  width: 240px;
 }
 /* SNS */
 .sns-inner {
  flex-direction: column;
  gap: 32px;
 }
 /* フッター */
 .footer-warning {
  flex-direction: column;
  text-align: center;
  gap: 12px;
 }
 .footer-warning p {
  text-align: left;
 }
}