body{margin:0;background:#fbf5f8;color:#1d234e;font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",sans-serif;font-weight:500;line-height:1.85;word-break:auto-phrase;line-break:strict;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}
a{color:#1d234e}a:hover{color:#e83817}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p{margin:0}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.en{font-family:"Outfit",sans-serif;letter-spacing:.04em}

/* ヘッダー */
.hd{position:sticky;top:0;z-index:30;background:rgba(250,241,246,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(29,35,78,.08)}
.hd__in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.hd__logo{font-weight:900;font-size:14px;line-height:1.3;text-decoration:none}
.hd__logo span{display:block;font-size:10px;font-weight:700;color:#5a5f7d}
.hd__nav{display:flex;gap:24px;font-size:14px;font-weight:700}
.hd__nav a{text-decoration:none}
@media (max-width:860px){.hd__nav{display:none}}

/* ボタン */
.btn{display:inline-flex;align-items:center;gap:10px;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;background:#1d234e;color:#fff !important;font-weight:900;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px);background:#2a3270}
.btn--red{background:#c42b0e;box-shadow:0 6px 0 #8f1f09;font-size:20px;min-height:64px;padding:0 44px}
.btn--red:hover{background:#e83817;box-shadow:0 8px 0 #8f1f09}
.btn--red:active{transform:translateY(4px);box-shadow:0 2px 0 #8f1f09}
.btn--white{background:#fff;color:#1d234e !important;box-shadow:0 6px 0 rgba(0,0,0,.25);font-size:20px;min-height:64px;padding:0 44px}
.btn--white:hover{background:#fff4ef}
.btn .arw{display:inline-block;transition:transform .2s ease}
.btn:hover .arw{transform:translateX(5px)}

/* ヒーロー */
.hero{position:relative;overflow:hidden;padding:24px 0 72px}
.hero__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:center}
@media (min-width:980px){.hero__grid{grid-template-columns:minmax(0,46fr) minmax(0,54fr);gap:8px}}
.hero__art{position:relative;order:-1}
@media (min-width:980px){.hero__art{order:2}}
.hero__art img{width:100%;animation:bob 7s ease-in-out infinite;-webkit-mask-image:radial-gradient(ellipse 72% 80% at 55% 46%,#000 62%,transparent 100%);mask-image:radial-gradient(ellipse 72% 80% at 55% 46%,#000 62%,transparent 100%)}
.catch{display:inline-block;transform:rotate(-6deg);transform-origin:left bottom;margin:0 0 6px 6px;animation:pop .7s cubic-bezier(.2,1.6,.4,1) .9s both}
.catch__l1{display:inline-block;background:#fff;padding:2px 12px;font-weight:900;font-size:clamp(16px,2vw,22px)}
.catch__l2{display:inline-block;background:#fff;color:#e83817;font-weight:900;font-size:clamp(34px,4.4vw,52px);line-height:1.15;padding:0 14px;margin-top:4px;box-shadow:6px 6px 0 #1d234e}
.title{margin-top:18px;max-width:560px;animation:wipe 1.1s cubic-bezier(.7,0,.2,1) .2s both}
.info{margin-top:28px;background:#fff;border-radius:24px;padding:26px 26px 30px;box-shadow:0 18px 40px rgba(29,35,78,.12);max-width:560px;animation:rise .8s ease 1.2s both}
.badge{display:inline-block;background:#1d234e;color:#fff;font-weight:900;font-size:20px;padding:4px 18px;transform:skewX(-10deg)}
.badge span{display:inline-block;transform:skewX(10deg)}
.dl{display:flex;align-items:flex-end;flex-wrap:wrap;gap:4px 14px;margin-top:12px}
.dl__label{font-weight:700;font-size:15px;width:100%}
.dl__date{font-weight:900;color:#e83817;font-size:clamp(56px,7vw,80px);line-height:.9}
.dl__date small{font-size:.32em;color:#1d234e;margin-right:6px}
.dl__wd{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#1d234e;color:#fff;font-size:15px;margin-left:6px;vertical-align:middle}
.count{display:inline-flex;align-items:baseline;gap:6px;background:#fff4ef;color:#c42b0e;border-radius:999px;padding:6px 16px;font-weight:900;font-size:15px;margin-bottom:6px}
.count b{font-size:28px;line-height:1}
.chips{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;margin-top:16px;font-weight:700}
.tag{font-size:12px;color:#fff;background:#5a5f7d;border-radius:4px;padding:1px 8px}
.pill{background:#1d234e;color:#fff;border-radius:8px;padding:4px 14px}
.gift{margin:20px 0 22px;padding:12px 16px;border:2px dashed #e83817;border-radius:14px;background:#fff8f5;font-size:15px;line-height:1.6}
.gift strong{color:#c42b0e;font-size:17px}

/* キービジュアル */
.kv{position:relative;overflow:hidden;height:max(640px,min(56.25vw,100vh));background:#fbf5f8 url("../img/paper.jpg") center/cover;--mx:0;--my:0;--sy:0}
.kv__item{position:absolute;will-change:transform}
.kv__par{transform:translate3d(calc(var(--mx) * var(--dp,0) * 26px),calc(var(--sy) * var(--dp,0) * -0.35px + var(--my) * var(--dp,0) * 18px),0)}
.kv__catch{left:7.5%;top:7.5%;width:19.5%;z-index:4;animation:kvpop .8s cubic-bezier(.2,1.6,.4,1) 1.1s both}
.kv__title{left:9.8%;top:11%;width:34.5%;z-index:3}
.kv__title img{animation:wipe 1.2s cubic-bezier(.7,0,.2,1) .25s both}
.kv__kids{left:39%;bottom:-1%;width:56.5%;z-index:2}
.kv__kids img{animation:kvrise 1.4s cubic-bezier(.2,.8,.2,1) .1s both}
.kv__kids .bob{animation:bob 8s ease-in-out 1.6s infinite}
.kv__stairs{right:4.5%;bottom:1%;width:15%;z-index:3}
.kv__stairs img{animation:kvslide 1.2s cubic-bezier(.2,.8,.2,1) .6s both}
.kv__cube img{width:100%;animation:float var(--d,9s) ease-in-out var(--dl,0s) infinite}
.kv__cube{z-index:var(--z,1)}
.kv__cube--blur{filter:blur(6px);opacity:.9}
.kv__scroll{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:5;display:flex;flex-direction:column;align-items:center;gap:6px;font-family:"Outfit",sans-serif;font-weight:800;font-size:11px;letter-spacing:.24em;color:#1d234e;text-decoration:none}
.kv__scroll i{display:block;width:2px;height:44px;background:linear-gradient(#1d234e 50%,rgba(29,35,78,.15) 50%);background-size:2px 88px;animation:line 1.8s linear infinite}
@media (max-width:760px){
  /* スマホ：ヘッダーを除いた1画面にタイトルと子どもたちが収まるよう、画面の高さに合わせて縮める */
  .kv{--H:clamp(520px,calc(100vh - 64px),216vw);height:var(--H);max-height:none;min-height:0}
  .kv__title{left:9%;top:calc(var(--H) * .085);width:min(84%,calc(var(--H) * .43))}
  .kv__catch{left:9%;top:calc(var(--H) * .035);width:min(58%,calc(var(--H) * .297))}
  .kv__kids{left:calc(50% - min(59vw,calc(var(--H) * .42)));top:calc(var(--H) * .56);bottom:auto;width:min(118vw,calc(var(--H) * .84))}
  .kv__stairs{display:none}
  .kv__scroll{display:none}
}
@supports (height:100svh){
  @media (max-width:760px){.kv{--H:clamp(520px,calc(100svh - 64px),216vw)}}
}

/* キービジュアル下の情報帯 */
.kvinfo{position:relative;z-index:6;margin-top:-56px}
.kvinfo__card{background:#fff;border-radius:28px;box-shadow:0 20px 50px rgba(29,35,78,.14);padding:28px 32px;display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:center}
@media (min-width:980px){.kvinfo__card{grid-template-columns:auto minmax(0,1fr) auto;gap:40px;padding:30px 44px}}
.kvinfo__mid{display:flex;flex-direction:column;gap:8px}
@media (max-width:760px){.kvinfo{margin-top:-28px}}

@keyframes kvpop{from{opacity:0;transform:scale(.4) rotate(-12deg)}70%{opacity:1}to{opacity:1;transform:none}}
@keyframes kvrise{from{opacity:0;transform:translateY(80px)}to{opacity:1;transform:none}}
@keyframes kvslide{from{opacity:0;transform:translateX(120px)}to{opacity:1;transform:none}}
@keyframes line{from{background-position:0 -44px}to{background-position:0 44px}}

.sec .wrap,.cta .wrap{position:relative;z-index:1}
/* 浮かぶキューブ */
.cube{position:absolute;width:var(--s,56px);animation:float var(--d,9s) ease-in-out infinite;animation-delay:var(--dl,0s);pointer-events:none;z-index:0}

/* マーキー */
.marquee{background:#1d234e;color:#fff;overflow:hidden;white-space:nowrap;padding:16px 0;transform:rotate(-1.5deg);margin:0 -20px;position:relative;z-index:2}
.marquee__track{display:inline-flex;animation:slide 32s linear infinite}
.marquee__track span{font-family:"Outfit","Noto Sans JP",sans-serif;font-weight:900;font-size:22px;padding:0 28px;letter-spacing:.06em}
.marquee__track i{font-style:normal;color:#e83817}

/* セクション */
.sec{padding:112px 0}
.sec__head{text-align:center;margin-bottom:48px}
.sec__en{display:block;font-family:"Outfit",sans-serif;font-weight:900;font-size:clamp(44px,7vw,88px);line-height:1;color:transparent;-webkit-text-stroke:2px rgba(29,35,78,.16);letter-spacing:.04em}
.sec__ja{font-size:clamp(26px,3.2vw,38px);font-weight:900;margin-top:-18px;position:relative}
.sec__ja::after{content:"";display:block;width:64px;height:6px;border-radius:3px;background:#e83817;margin:14px auto 0}

.about{background:#fff;position:relative;overflow:hidden}
.about__lead{font-size:clamp(22px,2.8vw,32px);font-weight:900;text-align:center;line-height:1.6}
.about__lead em{font-style:normal;background:linear-gradient(transparent 62%,#ffd9cf 62%)}
.about__body{max-width:760px;margin:28px auto 0;font-size:17px;text-align:center}
.aim{max-width:760px;margin:36px auto 0;background:#faf1f6;border-radius:20px;padding:24px 28px}
.aim h3{font-size:16px;margin-bottom:6px}

/* 3ステップ（階段） */
.steps{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:end}
@media (min-width:860px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
.step{position:relative;background:#fff;border-radius:24px;padding:30px 26px 34px;box-shadow:0 14px 30px rgba(29,35,78,.1);text-align:center;transition:transform .3s ease}
.step:hover{transform:translateY(-6px)}
@media (min-width:860px){.step--2{margin-bottom:56px}.step--3{margin-bottom:112px}}
.step__num{display:grid;place-items:center;width:84px;height:84px;margin:-62px auto 16px;border-radius:22px;background:#1d234e;color:#fff;font-family:"Outfit",sans-serif;font-weight:900;font-size:44px;transform:rotate(-8deg);box-shadow:0 8px 0 #e83817}
.step__txt{font-size:20px;font-weight:900;line-height:1.5}
.step__sub{font-size:14px;color:#5a5f7d;margin-top:10px}
.steps-wrap{padding-top:70px}

/* 募集要項 */
.spec{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:860px){.spec{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{background:#fff;border-radius:24px;padding:28px;box-shadow:0 10px 26px rgba(29,35,78,.08)}
.card__k{font-size:13px;font-weight:900;color:#c42b0e;letter-spacing:.08em}
.card__v{font-size:20px;font-weight:900;margin-top:6px;line-height:1.5}
.card__s{font-size:14px;color:#5a5f7d;margin-top:8px;line-height:1.7}

/* 本選 */
.final{background:#1d234e;color:#fff;position:relative;overflow:hidden}
.final .sec__en{-webkit-text-stroke:2px rgba(255,255,255,.18)}
.final a{color:#fff}
.final__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}
@media (min-width:900px){.final__grid{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;align-items:start}}
.final__date{font-family:"Outfit","Noto Sans JP",sans-serif;font-weight:900;font-size:clamp(44px,6vw,72px);line-height:1}
.final__date small{font-size:.38em;margin-left:6px}
.final__time{font-size:22px;font-weight:900;margin-top:10px}
.final__place{font-size:20px;font-weight:900;margin-top:22px;line-height:1.5}
.final__txt{margin-top:18px;font-size:16px;color:#d8daea}
.live{display:inline-flex;align-items:center;gap:10px;margin-top:22px;background:rgba(255,255,255,.1);border-radius:999px;padding:8px 18px;font-weight:700}
.live i{width:10px;height:10px;border-radius:50%;background:#ff4d4d;animation:blink 1.4s ease-in-out infinite}
.prize{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.prize div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:18px;font-weight:900;font-size:17px;text-align:center}
.prize .all{grid-column:1/-1;background:#e83817;border-color:#e83817}
.judges{margin-top:28px}
.judges p{font-size:14px;color:#d8daea}
.judges strong{display:block;color:#fff;font-size:18px}

/* 問い合わせ */
.contact__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:860px){.contact__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tel{font-family:"Outfit",sans-serif;font-weight:900;font-size:34px;text-decoration:none}

/* 最後のCTA */
.cta{background:#e83817;color:#fff;text-align:center;position:relative;overflow:hidden}
.cta__t{font-size:clamp(28px,4vw,48px);font-weight:900;line-height:1.4}
.cta__s{font-size:18px;margin:14px 0 32px}

.ft{background:#13173a;color:#c9cbe0;font-size:13px;padding:40px 0}
.ft p{margin-bottom:8px}

/* 出現アニメーション */
[data-reveal]{opacity:0;transform:translateY(40px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal="2"]{transition-delay:.15s}
[data-reveal="3"]{transition-delay:.3s}

@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
@keyframes float{0%,100%{transform:translate(0,0) rotate(0)}33%{transform:translate(10px,-22px) rotate(18deg)}66%{transform:translate(-8px,-10px) rotate(-12deg)}}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes wipe{from{clip-path:inset(0 100% 0 0);opacity:0}to{clip-path:inset(0 0 0 0);opacity:1}}
@keyframes pop{from{opacity:0;transform:rotate(-6deg) scale(.6)}to{opacity:1;transform:rotate(-6deg) scale(1)}}
@keyframes rise{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  [data-reveal]{opacity:1;transform:none}
}
main{overflow-x:clip}
@media (max-width:600px){.hd__logo span{display:none}}

/* 助成表記（ロゴは白地のまま・比率と色は変えない） */
.ft__grant{display:flex;align-items:center;gap:16px;margin:16px 0 8px}
.ft__grant img{width:128px;height:auto;background:#fff;padding:6px;border-radius:8px;flex:0 0 auto}
.ft__grant p{margin:0;color:#fff;font-weight:700}

/* ページ内リンク・JSなしでも見出しがヘッダーに隠れないように */
html{scroll-padding-top:76px}
[tabindex="-1"]:focus{outline:none}

/* 紙のざらざら感をサイト全体に（キービジュアルと同じ紙をつなぎ目なしで敷く） */
body,.page-bg{background:#fbf5f8 url("../img/paper-tile.jpg") repeat;background-size:800px auto}
.about{background:linear-gradient(rgba(255,255,255,.5),rgba(255,255,255,.5)),url("../img/paper-tile.jpg") repeat;background-size:auto,800px auto}
.final{background:url("../img/grain-mid.jpg") repeat,#1d234e;background-size:800px auto;background-blend-mode:overlay}
.cta{background:url("../img/grain-mid.jpg") repeat,#e83817;background-size:800px auto;background-blend-mode:overlay}
.ft{background:url("../img/grain-mid.jpg") repeat,#13173a;background-size:800px auto;background-blend-mode:overlay}

/* 画面には出さず、検索エンジン・読み上げソフトに読ませる文字 */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* 開催概要 */
.outline{max-width:880px;margin-inline:auto;background:#fff;border-radius:24px;padding:12px 32px;box-shadow:0 14px 34px rgba(29,35,78,.1)}
.outline dl{margin:0}
.outline dl>div{display:grid;grid-template-columns:1fr;gap:2px;padding:14px 0;border-bottom:1px dashed #e6dbe2}
.outline dl>div:last-child{border-bottom:0}
.outline dt{font-weight:900;font-size:14px;color:#c42b0e}
.outline dd{margin:0;font-weight:700;line-height:1.8;overflow-wrap:break-word}
.outline a{color:#1d234e}
@media (min-width:760px){.outline dl>div{grid-template-columns:170px 1fr;gap:16px}.outline dt{font-size:15px;padding-top:2px}}
@media (max-width:600px){.outline{padding:6px 20px;border-radius:20px}}

/* よくある質問 */
.faq{max-width:880px;margin-inline:auto;display:grid;gap:12px}
.faq details{background:#fff;border-radius:18px;box-shadow:0 8px 22px rgba(29,35,78,.08);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 56px 18px 22px;font-weight:900;font-size:17px;position:relative;line-height:1.6}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font-family:"Outfit",sans-serif;color:#c42b0e;margin-right:10px;font-size:20px}
.faq summary::after{content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;border-right:3px solid #1d234e;border-bottom:3px solid #1d234e;transform:translateY(-70%) rotate(45deg);transition:transform .25s ease}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq summary:focus-visible{outline:3px solid rgba(232,56,23,.4);outline-offset:-3px}
.faq details p{margin:0;padding:0 22px 20px 52px;line-height:1.9}
.faq details a{color:#1d234e;font-weight:700}
@media (max-width:600px){.faq summary{font-size:16px;padding:16px 48px 16px 18px}.faq details p{padding:0 18px 18px 18px}}