:root{
  --pink:#ff7eb6; --pink-d:#e8458f; --pink-l:#ffe0ee; --blush:#fff3f8;
  --lilac:#b79cff; --lilac-l:#ece4ff; --sky:#7ad3ff; --sky-l:#dff4ff;
  --mint:#9ef0d0; --lemon:#ffe98a; --ink:#5a3a63; --ink-soft:#8a6a93;
  --card:#ffffff; --bg:#fff0f7;
  --shadow:0 8px 0 rgba(232,69,143,.18),0 18px 30px rgba(183,156,255,.25);
  --r:28px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:"Nunito","Zen Maru Gothic",system-ui,sans-serif;color:var(--ink);background:var(--bg);
  background-image:radial-gradient(var(--pink-l) 2px,transparent 2.5px),radial-gradient(var(--lilac-l) 2px,transparent 2.5px);
  background-size:36px 36px;background-position:0 0,18px 18px;line-height:1.6;overflow-x:clip}
html{overflow-x:clip}
img{max-width:100%;display:block}
a{color:var(--pink-d)}
h1,h2,h3,.fred{font-family:"Fredoka","Zen Maru Gothic",sans-serif;font-weight:600;line-height:1.15}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.jp{font-family:"Zen Maru Gothic",sans-serif;font-weight:700}
.sr{position:absolute;left:-9999px}

/* ---------- falling petals / stars ---------- */
#petals{position:fixed;inset:0;pointer-events:none;z-index:50;overflow:hidden}
.petal{position:absolute;top:-40px;font-size:18px;opacity:.85;animation:fall linear infinite;will-change:transform}
@keyframes fall{to{transform:translate3d(var(--dx),110vh,0) rotate(360deg)}}

/* ---------- nav ---------- */
header.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);
  border-bottom:3px dashed var(--pink)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:"Fredoka";font-weight:700;font-size:1.3rem}
.brand .gem{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--lilac));display:grid;place-items:center;color:#fff;box-shadow:0 3px 0 var(--pink-d)}
.brand small{display:block;font-size:.62rem;font-weight:500;color:var(--ink-soft);letter-spacing:.08em;margin-top:-2px}
nav ul{display:flex;gap:4px;list-style:none;align-items:center}
nav a.link{display:block;padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--ink);font-weight:800;font-size:.95rem;transition:.2s}
nav a.link:hover,nav a.link.on{background:var(--pink-l);transform:translateY(-2px) rotate(-2deg)}
.burger{display:none;border:0;background:var(--pink-l);border-radius:16px;width:46px;height:46px;font-size:1.4rem;cursor:pointer;box-shadow:0 3px 0 var(--pink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;border:0;cursor:pointer;text-decoration:none;
  font-family:"Fredoka";font-weight:600;font-size:1.15rem;color:#fff;padding:14px 28px;border-radius:999px;
  background:linear-gradient(180deg,#ff9ac8,var(--pink-d));box-shadow:0 6px 0 #b8286a,0 14px 24px rgba(232,69,143,.35);
  transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 9px 0 #b8286a,0 18px 28px rgba(232,69,143,.4)}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 #b8286a}
.btn.alt{background:linear-gradient(180deg,#a8e6ff,#4fb8f0);box-shadow:0 6px 0 #2a86b8,0 14px 24px rgba(79,184,240,.35)}
.btn.sm{font-size:.95rem;padding:9px 20px;box-shadow:0 4px 0 #b8286a}
.btn.big{font-size:1.4rem;padding:18px 40px}

/* ---------- hero ---------- */
.hero{padding:56px 0 90px;position:relative}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.pill{display:inline-block;background:#fff;border:3px solid var(--lilac);color:var(--lilac);border-radius:999px;padding:4px 16px;font-weight:900;font-size:.85rem;letter-spacing:.06em;margin-bottom:14px;transform:rotate(-2deg)}
.hero h1{font-size:clamp(2.8rem,7vw,5.2rem);color:var(--pink-d);text-shadow:4px 4px 0 #fff,6px 6px 0 var(--pink-l)}
.hero h1 span{display:block;background:linear-gradient(90deg,#9b6dff,#3fa9f5);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:none;filter:drop-shadow(3px 3px 0 #fff)}
.hero .kana{font-size:1.5rem;color:var(--lilac);letter-spacing:.2em;margin:6px 0 18px}
.hero p.lead{font-size:1.2rem;max-width:34em;margin-bottom:22px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}
.chip{background:#fff;border-radius:999px;padding:6px 16px;font-weight:800;font-size:.92rem;box-shadow:0 3px 0 var(--pink-l);border:2px solid var(--pink-l)}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.price-tag{font-family:"Fredoka";font-size:1.1rem;background:var(--lemon);border-radius:18px;padding:6px 16px;transform:rotate(3deg);box-shadow:0 4px 0 #e9c94c}
.price-tag b{font-size:1.7rem;color:var(--pink-d)}
.cover-stack{position:relative;justify-self:center;width:min(480px,100%)}
.cover-stack .frame{background:#fff;padding:14px 14px 48px;border-radius:24px;box-shadow:var(--shadow);transform:rotate(3deg);border:3px solid var(--pink-l);transition:transform .4s}
.cover-stack .frame:hover{transform:rotate(-1deg) scale(1.02)}
.cover-stack .frame img{border-radius:14px;width:100%;aspect-ratio:1}
.cover-stack .frame figcaption{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-family:"Fredoka";color:var(--ink-soft)}
.mini{position:absolute;width:34%;background:#fff;padding:8px;border-radius:18px;box-shadow:var(--shadow);border:3px solid var(--lilac-l)}
.mini img{border-radius:10px;aspect-ratio:1;object-fit:cover}
.mini.a{left:-12%;bottom:-8%;transform:rotate(-9deg);animation:bob 4s ease-in-out infinite}
.mini.b{right:-8%;top:-6%;transform:rotate(8deg);animation:bob 5s ease-in-out infinite reverse}
@keyframes bob{50%{translate:0 -10px}}
.sticker{position:absolute;z-index:3;font-size:2.4rem;animation:spin 6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- sections ---------- */
section{padding:84px 0;position:relative}
.wave-top{position:absolute;top:-1px;left:0;width:100%;height:50px;display:block}
section.white{background:#fff}
section.lilac{background:linear-gradient(180deg,var(--lilac-l),#f7f2ff)}
section.sky{background:linear-gradient(180deg,var(--sky-l),#f1fbff)}
.title{text-align:center;margin-bottom:46px}
.title small{display:block;font-family:"Zen Maru Gothic";color:var(--lilac);font-weight:900;letter-spacing:.35em;margin-bottom:6px}
.title h2{font-size:clamp(2rem,4.5vw,3.2rem);color:var(--pink-d)}
.title h2::after{content:"";display:block;width:120px;height:12px;margin:12px auto 0;border-radius:99px;background:repeating-linear-gradient(90deg,var(--pink) 0 14px,var(--lilac) 14px 28px,var(--sky) 28px 42px)}
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border-radius:var(--r);padding:28px;border:3px solid var(--pink-l);box-shadow:var(--shadow);transition:transform .25s}
.card:hover{transform:translateY(-6px) rotate(-.6deg)}
.card .ico{font-size:2.6rem;display:block;margin-bottom:6px}
.card h3{font-size:1.35rem;color:var(--pink-d);margin-bottom:6px}
.card:nth-child(3n+2){border-color:var(--lilac-l)}
.card:nth-child(3n+3){border-color:var(--sky-l)}

.about{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.speech{background:#fff;border-radius:30px;padding:26px 30px;border:3px solid var(--pink);position:relative;box-shadow:var(--shadow)}
.speech::after{content:"";position:absolute;left:44px;bottom:-22px;border:12px solid transparent;border-top:12px solid var(--pink);border-left-width:14px}
.speech.r::after{left:auto;right:44px}
.ryucy{margin-top:34px;display:flex;align-items:center;gap:14px;font-family:"Fredoka"}
.ryucy .av{width:62px;height:62px;border-radius:50%;overflow:hidden;border:3px solid var(--pink);flex:none}
.ryucy .av img{width:170%;max-width:none;margin:-8% 0 0 -30%}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gallery button{border:0;background:#fff;padding:10px 10px 36px;border-radius:20px;cursor:pointer;box-shadow:var(--shadow);position:relative;transition:.25s;border:3px solid var(--pink-l)}
.gallery button:nth-child(odd){transform:rotate(-2deg)}
.gallery button:nth-child(even){transform:rotate(2deg)}
.gallery button:hover{transform:rotate(0) scale(1.05);z-index:2}
.gallery img{border-radius:12px;aspect-ratio:1;object-fit:cover;width:100%}
.gallery button::after{content:"♡";position:absolute;bottom:4px;right:14px;color:var(--pink);font-size:1.4rem}
#lightbox{position:fixed;inset:0;background:rgba(90,58,99,.88);z-index:100;display:none;place-items:center;padding:20px}
#lightbox.open{display:grid}
#lightbox img{max-height:88vh;border-radius:20px;border:6px solid #fff;box-shadow:0 20px 60px rgba(0,0,0,.4)}
#lightbox .x{position:absolute;top:18px;right:22px;font-size:2.4rem;color:#fff;background:var(--pink-d);width:54px;height:54px;border-radius:50%;border:0;cursor:pointer}

/* how to play */
.steps{counter-reset:s;display:grid;gap:18px}
.step{display:flex;gap:18px;background:#fff;border-radius:var(--r);padding:20px 24px;border:3px solid var(--sky-l);box-shadow:var(--shadow);align-items:flex-start}
.step::before{counter-increment:s;content:counter(s);flex:none;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--sky),var(--lilac));color:#fff;font-family:"Fredoka";font-size:1.5rem;display:grid;place-items:center;box-shadow:0 4px 0 #6a8de0}
.step h3{font-size:1.2rem;color:var(--pink-d)}
.tip{background:var(--lemon);border-radius:18px;padding:12px 18px;margin-top:14px;font-weight:700}
.shot{background:#fff;padding:12px;border-radius:22px;box-shadow:var(--shadow);border:3px solid var(--lilac-l);transform:rotate(2deg);justify-self:center;max-width:340px}
.shot img{border-radius:12px}
.shot figcaption{text-align:center;font-size:.85rem;color:var(--ink-soft);padding-top:8px}
.ctrl{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.ctrl div{background:#fff;border-radius:22px;padding:18px;text-align:center;border:3px dashed var(--pink);font-weight:700}
.ctrl b{display:block;font-family:"Fredoka";font-size:1.15rem;color:var(--pink-d)}
.ctrl .e{font-size:2rem}

/* buy */
.buy{background:linear-gradient(135deg,#ffd6ea,#e3d6ff 55%,#cdefff)}
.buybox{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;background:#fff;border-radius:40px;padding:34px;border:5px solid #fff;box-shadow:0 0 0 4px var(--pink),var(--shadow);align-items:center}
.buybox .big-price{font-family:"Fredoka";font-size:4.2rem;color:var(--pink-d);line-height:1}
.buybox ul{list-style:none;margin:18px 0 24px}
.buybox li{padding:5px 0 5px 34px;position:relative;font-weight:700}
.buybox li::before{content:"🌸";position:absolute;left:0}
.secure{font-size:.9rem;color:var(--ink-soft);margin-top:14px}
.age{background:var(--pink-l);border-radius:16px;padding:10px 16px;font-weight:800;margin-bottom:16px;display:inline-block}

/* faq */
details{background:#fff;border-radius:22px;padding:6px 22px;margin-bottom:14px;border:3px solid var(--lilac-l);box-shadow:0 5px 0 var(--lilac-l)}
summary{cursor:pointer;font-family:"Fredoka";font-size:1.15rem;padding:14px 0;list-style:none;color:var(--ink);display:flex;justify-content:space-between;gap:10px}
summary::after{content:"＋";color:var(--pink-d)}
details[open] summary::after{content:"－"}
details p{padding:0 0 16px}

/* marquee */
.marquee{background:var(--pink-d);color:#fff;overflow:hidden;white-space:nowrap;font-family:"Fredoka";font-size:1.05rem;padding:10px 0;border-block:4px dashed #fff}
.marquee div{display:inline-block;animation:mq 28s linear infinite}
@keyframes mq{to{transform:translateX(-50%)}}

footer{background:#4b2e57;color:#f6dcee;padding:50px 0 30px;text-align:center}
footer a{color:var(--lemon)}
footer .logo{width:84px;margin:0 auto 12px;border-radius:50%}
footer p{max-width:46em;margin:6px auto;font-size:.9rem}

/* age gate */
#gate{position:fixed;inset:0;z-index:200;background:linear-gradient(135deg,#ffd6ea,#e3d6ff);display:grid;place-items:center;padding:20px}
#gate .box{background:#fff;border-radius:36px;padding:36px;max-width:460px;text-align:center;border:5px solid var(--pink);box-shadow:var(--shadow)}
#gate h2{color:var(--pink-d);font-size:2rem;margin-bottom:8px}
#gate .row{display:flex;gap:12px;justify-content:center;margin-top:20px;flex-wrap:wrap}

/* thanks page */
.thanks{min-height:80vh;display:grid;place-items:center;padding:60px 0}
.thanks .card{max-width:640px;text-align:center}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero .wrap,.about,.buybox,.g2{grid-template-columns:1fr}
  .g3{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .ctrl{grid-template-columns:1fr 1fr}
  .mini.a{left:-2%;bottom:-4%}.mini.b{right:-2%}
  .hero .kana{letter-spacing:.08em;font-size:1.25rem}
}
@media(max-width:720px){
  .burger{display:block}
  nav ul{position:absolute;top:68px;left:0;right:0;max-height:calc(100vh - 68px);overflow-y:auto;background:#fff;flex-direction:column;padding:14px;border-bottom:3px dashed var(--pink);display:none;gap:6px}
  nav ul.open{display:flex}
  nav a.link{font-size:1.1rem;text-align:center}
  .g3,.gallery{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr;gap:14px}
  .buybox{padding:22px}
  .buybox .big-price{font-size:3.4rem}
  section{padding:64px 0}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}

/* ---------- dropdown menu ---------- */
nav li.dd{position:relative}
nav ul.sub{display:none;position:absolute;top:100%;left:50%;translate:-50% 0;min-width:270px;background:#fff;border:3px solid var(--pink);border-radius:22px;padding:10px;box-shadow:var(--shadow);flex-direction:column;gap:2px;z-index:60}
nav li.dd:hover>ul.sub,nav li.dd:focus-within>ul.sub{display:flex}
nav ul.sub a{display:block;padding:8px 14px;border-radius:14px;text-decoration:none;color:var(--ink);font-weight:800;font-size:.92rem}
nav ul.sub a:hover{background:var(--pink-l)}
nav ul.sub a.all{background:var(--lemon)}
@media(max-width:720px){
  nav ul.sub{display:flex;position:static;translate:none;border:0;box-shadow:none;padding:2px 0 6px 12px;min-width:0;background:transparent}
  nav ul.sub a{font-size:.95rem;text-align:center}
}

/* ---------- guide page ---------- */
.guide{padding-top:44px}
.title h1.h2like{font-size:clamp(2.2rem,5vw,3.4rem);color:var(--pink-d)}
.title h1.h2like::after{content:"";display:block;width:120px;height:12px;margin:12px auto 0;border-radius:99px;background:repeating-linear-gradient(90deg,var(--pink) 0 14px,var(--lilac) 14px 28px,var(--sky) 28px 42px)}
.tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:30px;position:sticky;top:76px;z-index:30;padding:10px;background:rgba(255,240,247,.92);backdrop-filter:blur(8px);border-radius:26px}
.tabs a{padding:9px 16px;border-radius:999px;background:#fff;border:3px solid var(--pink-l);text-decoration:none;color:var(--ink);font-weight:800;font-size:.92rem;transition:.2s}
.tabs a:hover{transform:translateY(-2px) rotate(-2deg)}
.tabs a.on{background:linear-gradient(180deg,#ff9ac8,var(--pink-d));color:#fff;border-color:var(--pink-d);box-shadow:0 4px 0 #b8286a}
.panel{display:none;background:#fff;border-radius:36px;padding:34px;border:4px solid var(--pink-l);box-shadow:var(--shadow);animation:pop .35s}
.panel.on{display:block}
@keyframes pop{from{opacity:0;transform:translateY(12px)}}
.panel h2{font-size:2rem;color:var(--pink-d);margin-bottom:12px}
.panel h3.sub{font-size:1.35rem;color:var(--lilac);margin:30px 0 12px}
.panel p{margin:8px 0}
.panel code{background:var(--lilac-l);padding:1px 7px;border-radius:8px;font-size:.88em}
.panel .steps{margin-top:14px}
.panel .two{display:grid;grid-template-columns:1.3fr .8fr;gap:26px;align-items:start;margin-top:12px}
.panel .tip.warn{background:#ffd3d3}
.small{font-size:.88rem;color:var(--ink-soft)}
.scroll{overflow-x:auto;border-radius:18px}
table.tbl{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:3px solid var(--pink-l);border-radius:18px;overflow:hidden;font-size:.95rem}
table.tbl th,table.tbl td{padding:10px 14px;text-align:left;border-bottom:2px dashed var(--pink-l);vertical-align:top}
table.tbl tr:last-child>*{border-bottom:0}
table.tbl th{font-family:"Fredoka";font-weight:600;color:var(--pink-d);white-space:nowrap}
table.tbl.head tr:first-child th{background:var(--pink-l)}
table.tbl.center td,table.tbl.center th{text-align:center}
table.tbl.center td:first-child,table.tbl.center th:first-child{text-align:left}
table.tbl tr:nth-child(even) td,table.tbl tr:nth-child(even) th:first-child:not(:only-child){background:var(--blush)}
.ctrl{grid-template-columns:repeat(3,1fr)}
ol.num{list-style:none;counter-reset:n;display:grid;gap:8px}
ol.num li{counter-increment:n;display:flex;gap:10px;align-items:center;background:var(--sky-l);border-radius:16px;padding:8px 12px}
ol.num li::before{content:counter(n);flex:none;width:30px;height:30px;border-radius:50%;background:var(--sky);color:#fff;font-family:"Fredoka";display:grid;place-items:center}
.mock{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:linear-gradient(135deg,#d9c8ff,#bde6ff);border-radius:22px;padding:12px;font-size:.78rem;font-weight:800;text-align:center;border:3px solid #fff;box-shadow:var(--shadow)}
.mock div{background:rgba(255,255,255,.85);border-radius:12px;padding:12px 4px;display:grid;place-items:center;min-height:54px}
.mock .m1{grid-column:1}.mock .m2{grid-column:2}.mock .m3{grid-column:3}
.mock .m4{grid-column:1/3;background:var(--lemon)}.mock .m5{grid-column:3;background:var(--pink-l)}
.mock .m6{grid-column:1}.mock .m7{grid-column:2}.mock .m8{grid-column:3}
ul.bul{padding-left:1.2em}ul.bul li{margin:6px 0}ul.bul li::marker{content:"🌸 "}
.four .card{padding:20px}
.prog{display:grid;gap:8px}
.tick{display:flex;gap:10px;align-items:center;background:var(--blush);border:2px solid var(--pink-l);border-radius:16px;padding:10px 14px;cursor:pointer}
.tick input{width:22px;height:22px;accent-color:var(--pink-d)}
.tick:has(input:checked){background:var(--mint);border-color:#5fd3a8;text-decoration:line-through;text-decoration-color:rgba(0,0,0,.25)}
.pn{display:flex;justify-content:space-between;gap:10px;margin-top:30px}
.pn a{text-decoration:none}
.cta-end{text-align:center;margin-top:44px}
.cta-end h3{font-size:1.8rem;color:var(--pink-d);margin-bottom:14px}
details[open]{border-color:var(--pink)}
@media(max-width:900px){.panel .two{grid-template-columns:1fr}.ctrl{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.panel{padding:20px;border-radius:26px}.tabs{position:static;flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start}.tabs a{white-space:nowrap}.ctrl{grid-template-columns:1fr}}