:root{
  color-scheme: light;
  --ink:#243036; --sub:#54666e; --paper:#fbfdfd; --mist:#e8f4fa; --mist2:#f2f9fd;
  --line:#d8e8f0; --aqua:#00a7e6; --aqua-deep:#0082b4; --aqua-soft:#d9f1fc;
  --mocha:#b3aa9f; --mocha-soft:#efece7;
  --r:22px; --maxw:1060px;
  --fd:"Zen Maru Gothic",sans-serif; --fb:"Zen Kaku Gothic New",sans-serif; --fn:"Outfit",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--fb);color:var(--ink);background:var(--paper);line-height:1.85;font-size:16.5px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:var(--fd);line-height:1.5;letter-spacing:.02em}
.eyebrow{font-size:12.5px;letter-spacing:.22em;color:var(--aqua-deep);font-weight:700;margin-bottom:10px}
section{padding:64px 0}
.sec-title{font-size:26px;font-weight:700;text-align:center;margin-bottom:8px}
.sec-lead{text-align:center;color:var(--sub);font-size:15px;margin-bottom:36px}
.num{font-family:var(--fn)}


/* hamburger & drawer */
.pc-only{display:none}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:none;background:transparent;cursor:pointer;padding:0;margin-left:6px}
.burger span{display:block;height:2px;width:22px;margin:0 auto;background:var(--ink);border-radius:2px;transition:.28s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{position:fixed;top:60px;right:0;width:min(78vw,320px);height:calc(100vh - 60px);background:var(--paper);border-left:1px solid var(--line);box-shadow:-14px 0 40px rgba(36,48,54,.12);transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);z-index:60;padding:14px 0}
.drawer.open{transform:none}
.drawer[hidden]{display:block}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{font-family:var(--fd);font-weight:500;font-size:15.5px;padding:16px 24px;border-bottom:1px solid var(--line);color:var(--ink);display:flex;align-items:center;justify-content:space-between}
.drawer-nav a::after{content:"›";color:var(--aqua);font-size:18px}
.drawer-nav a:active{background:var(--mist)}
.drawer-scrim{position:fixed;inset:60px 0 0;background:rgba(20,30,34,.28);z-index:55;opacity:0;transition:opacity .3s}
.drawer-scrim.open{opacity:1}
.drawer-scrim[hidden],.drawer[hidden].pre{}
@media(min-width:840px){
  .pc-only{display:inline-flex}
  .burger{display:none}
  .drawer,.drawer-scrim{display:none!important}
}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(251,253,253,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-family:var(--fd);font-weight:700;font-size:19px;letter-spacing:.06em}
.logo small{display:block;font-size:9px;letter-spacing:.34em;color:var(--sub);font-family:var(--fn);font-weight:600}
.logo img{display:block;height:34px;width:auto}
nav{display:none;gap:24px;font-size:14.5px;color:var(--sub)}
nav a:hover{color:var(--aqua)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:999px;cursor:pointer;transition:.2s;font-family:var(--fd)}
.btn-buy{background:var(--aqua);color:#fff;font-size:13px;padding:9px 20px}
.btn-buy:hover{background:var(--aqua-deep)}

/* hero */
.hero{padding:0 0 56px;background:linear-gradient(180deg,var(--mist2),var(--paper) 70%)}
.hero-photo{position:relative;overflow:hidden;border-radius:0 0 48% 48% / 0 0 64px 64px;max-height:62vh}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-copy{text-align:center;padding:34px 20px 0;max-width:640px;margin:0 auto}
.hero-copy .hero-ctas{margin-bottom:34px}
.hero-copy h1{font-size:clamp(27px,6.8vw,41px);font-weight:700}
.hero-copy .sub{margin:14px 0 24px;color:var(--sub);font-size:15.5px}
.hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn-primary{background:var(--aqua);color:#fff;padding:14px 32px;font-size:16px}
.btn-primary:hover{background:var(--aqua-deep)}
.btn-ghost{border:1.5px solid var(--line);background:#fff;color:var(--ink);padding:14px 28px;font-size:16px}
.btn-ghost:hover{border-color:var(--aqua);color:var(--aqua)}


/* hero inset (photo-in-photo) */
.hero-visual{position:relative;margin-bottom:64px}
.hero-inset{position:absolute;right:16px;bottom:-46px;width:clamp(128px,34%,215px);background:#fff;border-radius:36px;padding:8px 8px 10px;box-shadow:0 14px 34px rgba(36,48,54,.16)}
.hero-inset img{border-radius:30px;aspect-ratio:1;object-fit:cover}
.hero-inset figcaption{font-family:var(--fd);font-weight:700;font-size:11.5px;line-height:1.45;text-align:center;padding-top:7px;color:var(--ink)}
.hero-inset figcaption span{font-weight:500;font-size:10px;color:var(--sub)}
@media(min-width:840px){
  .hero-visual{margin-bottom:0}
  .hero-inset{right:-14px;bottom:-30px}
}


/* hero motion 案1：登場のオーケストレーションのみ */
@keyframes heroIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero-copy>*{opacity:0;animation:heroIn .8s cubic-bezier(.2,.7,.3,1) forwards}
.hero-copy .eyebrow{animation-delay:.05s}
.hero-copy h1{animation-delay:.16s}
.hero-copy .sub{animation-delay:.3s}
.hero-copy .hero-ctas{animation-delay:.44s}
.hero-visual{opacity:0;animation:heroIn .9s cubic-bezier(.2,.7,.3,1) .28s forwards}


/* hero motion 案2：クラゲの浮遊（インセットのゆっくりした上下） */
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.hero-inset{animation:heroInInset .9s cubic-bezier(.2,.7,.3,1) .5s both, floaty 7.5s ease-in-out 1.6s infinite}
@keyframes heroInInset{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}


/* hero motion 案3改：背景の泡（写真外・セクション地の上） */
.hero{position:relative;overflow:hidden}
.hero>.wrap{position:relative;z-index:1}
.bgbub{position:absolute;bottom:-40px;z-index:0;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle at 30% 28%, rgba(255,255,255,.95), rgba(0,167,230,.10) 55%, rgba(0,167,230,0) 72%);
  border:1px solid rgba(0,167,230,.16);
  animation:bgrise linear infinite}
.g1{width:30px;height:30px;left:5%;animation-duration:16s;animation-delay:1s}
.g2{width:14px;height:14px;left:18%;animation-duration:20s;animation-delay:6s}
.g3{width:22px;height:22px;left:34%;animation-duration:18s;animation-delay:3s}
.g4{width:10px;height:10px;left:47%;animation-duration:23s;animation-delay:10s}
.g5{width:17px;height:17px;left:58%;animation-duration:17s;animation-delay:8s}
.g6{width:12px;height:12px;left:70%;animation-duration:21s;animation-delay:2s}
.g7{width:25px;height:25px;left:82%;animation-duration:15s;animation-delay:12s}
.g8{width:13px;height:13px;left:93%;animation-duration:19s;animation-delay:5s}
.g9{width:16px;height:16px;left:11%;animation-duration:18s;animation-delay:9s}
.g10{width:11px;height:11px;left:40%;animation-duration:22s;animation-delay:4s}
.g11{width:19px;height:19px;left:64%;animation-duration:16s;animation-delay:13s}
.g12{width:14px;height:14px;left:76%;animation-duration:20s;animation-delay:7s}
@keyframes bgrise{0%{transform:translateY(0);opacity:0}8%{opacity:.8}92%{opacity:.55}100%{transform:translateY(-880px);opacity:0}}


/* hero Ken Burns */
@keyframes kenburns{0%{transform:scale(1.02) translate(0,0)}100%{transform:scale(1.12) translate(-1.5%,-1%)}}
.hero-photo img{animation:kenburns 22s ease-out forwards}
@media (prefers-reduced-motion: reduce){.hero-photo img{animation:none}}

/* campaign */
.campaign{margin-top:-8px}
.campaign a{display:flex;gap:14px;align-items:center;background:var(--aqua-soft);border:1px solid #b6e0f5;border-radius:var(--r);padding:14px 18px;transition:.2s}
.campaign a:hover{background:#c9eafb}
.campaign .gift{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--aqua);display:flex;align-items:center;justify-content:center}
.campaign .gift svg{width:24px;height:24px}
.campaign b{font-size:14px;color:var(--aqua-deep)}
.campaign p{font-size:12px;color:var(--sub)}
.campaign .arrow{margin-left:auto;color:var(--aqua-deep);font-weight:700}
.campaign .camp-how{display:inline-block;margin-top:3px;font-weight:600;color:var(--aqua-deep)}

/* trust */
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.trust div{background:#fff;border:1px solid var(--line);border-radius:16px;text-align:center;padding:14px 6px;position:relative;overflow:visible}
.trust>div{padding-top:17px}
.trust small{display:block;font-size:11px;color:var(--sub);letter-spacing:.08em}
.trust b{font-size:14.5px;font-family:var(--fd)}
.trust .big{font-size:17px;color:var(--aqua);font-family:var(--fd);font-weight:800}
.trust .rank-note{display:block;font-family:var(--fb);font-weight:400;font-size:9.5px;color:var(--sub);line-height:1.4;margin-top:3px}


/* trust: patent emphasis */
.trust .patent{position:relative;border:1.5px solid var(--aqua);background:linear-gradient(180deg,#f2fbff,#fff);box-shadow:0 6px 18px rgba(0,167,230,.14)}
.trust .pat-badge{position:absolute;top:-9px;left:50%;transform:translateX(-50%);background:var(--aqua);color:#fff;font-family:var(--fd);font-weight:700;font-size:10px;letter-spacing:.1em;padding:2px 12px;border-radius:999px;white-space:nowrap}
.trust .patent b{color:var(--aqua);font-size:17px;font-weight:800;line-height:1.4}
.trust .patent small{margin-top:2px}

/* empathy steps */
.steps{background:var(--mist)}
.step-grid{display:grid;gap:14px}
.step{background:#fff;border-radius:var(--r);padding:22px 20px;text-align:center}
.step .ic{position:relative;width:60px;height:60px;border-radius:50%;background:var(--aqua);display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.step .ic svg{width:34px;height:34px}
.step .ic .x5{position:absolute;right:-2px;bottom:-1px;background:#fff;color:var(--aqua-deep);font-family:var(--fn);font-weight:600;font-size:11px;border-radius:999px;padding:1px 6px;box-shadow:0 2px 6px rgba(0,0,0,.12)}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14px;color:var(--sub)}

/* lineup */
.cards{display:grid;gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;position:relative;transition:.2s}
.card:hover{box-shadow:0 10px 30px rgba(0,167,230,.14);transform:translateY(-2px)}
.card img{aspect-ratio:1;object-fit:cover;width:100%}
.card .body{padding:16px 18px 20px}
.card h3{font-size:16.5px}
.card .price{font-family:var(--fn);font-weight:600;color:var(--aqua-deep);margin-top:4px}
.card .price small{font-family:var(--fb);color:var(--sub);font-weight:400}
.card .tag{position:absolute;top:12px;left:12px;background:var(--aqua-deep);color:#fff;font-size:11px;font-weight:700;border-radius:999px;padding:4px 12px;font-family:var(--fd)}
.card p.desc{font-size:13.5px;color:var(--sub);margin-top:4px}

/* story */
.story{background:linear-gradient(180deg,var(--paper),var(--mist2))}
.story-in{display:grid;gap:22px;align-items:center}
.story-in img{border-radius:28px}
.story-in h2{font-size:25px;margin-bottom:12px}
.story-in p{color:var(--sub);font-size:15px;margin-bottom:20px}
.link-arrow{color:var(--aqua-deep);font-weight:700;font-family:var(--fd);font-size:15.5px}
.link-arrow:hover{color:var(--aqua-deep)}

/* voices */
.voices .v-grid{display:grid;gap:14px}
.voice{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.voice .stars{color:#f2b01e;font-size:13px;letter-spacing:2px}
.voice h3{font-size:14.5px;margin:8px 0 4px}
.voice p{font-size:13px;color:var(--sub)}
.voice .who{font-size:11.5px;color:var(--mocha);margin-top:10px}
.voice .tag{display:inline-block;font-family:var(--fd);font-weight:700;font-size:11px;color:var(--aqua-deep);background:var(--aqua-soft);border-radius:999px;padding:3px 11px;margin-bottom:2px}
.prep{border:1.5px dashed var(--line);border-radius:var(--r);padding:24px;text-align:center;color:var(--sub);font-size:14px;background:var(--mist2)}

/* news */
.news li{list-style:none;display:flex;gap:12px;align-items:baseline;padding:15px 4px;border-bottom:1px solid var(--line);font-size:14.5px;flex-wrap:wrap}
.news time{font-family:var(--fn);color:var(--sub);font-size:12.5px;white-space:nowrap}
.news .cat{font-size:10.5px;font-weight:700;border-radius:999px;padding:2px 10px;white-space:nowrap}
.cat.new{background:var(--aqua-soft);color:var(--aqua-deep)}
.cat.camp{background:#e3f3e6;color:#2c7a3d}
.cat.info{background:var(--mocha-soft);color:var(--mocha)} 
.cat.info{color:#8a8177}


/* store buttons: brand identity */
.buy-btns .store{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:15px 20px 15px 26px;border-radius:16px;border:1.5px solid var(--line);background:#fff;overflow:hidden;transition:.2s}
.buy-btns .store::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px}
.buy-btns .store:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(36,48,54,.14)}
.store .store-brand{font-family:var(--fn);font-weight:600;font-size:19px;letter-spacing:.01em;display:flex;align-items:center;gap:2px}
.store .store-desc{font-family:var(--fb);font-weight:500;font-size:13px;color:var(--sub)}
.store .ext{position:absolute;top:14px;right:16px;color:var(--sub);font-size:13px}
/* Amazon */
.store-amazon{border-color:#ffa724;background:linear-gradient(180deg,#fff,#fff4e2)}
.store-amazon::before{background:#ff9900}
.store-amazon .store-brand{color:#232f3e}
.store-amazon .smile{color:#ff9900;font-size:20px;font-weight:700;margin-left:1px}
/* Rakuten */
.store-rakuten{border-color:#e88a8a;background:linear-gradient(180deg,#fff,#ffeded)}
.store-rakuten::before{background:#bf0000}
.store-rakuten .store-brand{color:#bf0000}
.store-rakuten .r-badge{font-family:var(--fb);font-weight:700;font-size:11px;background:#bf0000;color:#fff;border-radius:4px;padding:2px 7px;margin-left:8px}
/* Official */
.store-official{border-color:#7fcdee;background:linear-gradient(180deg,#fff,#e9f7fe)}
.store-official::before{background:var(--aqua)}
.store-official .store-brand{font-family:var(--fd);font-weight:700;font-size:16px;color:var(--aqua-deep)}

/* purchase */
.buy{background:var(--mist)}
.buy-note{text-align:center;font-size:14px;color:var(--sub);margin-bottom:22px}
.buy-btns{display:grid;gap:12px;max-width:440px;margin:0 auto}
.store{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:16px 20px;font-weight:700;font-family:var(--fd);font-size:15px;transition:.2s}
.store:hover{border-color:var(--aqua);color:var(--aqua)}
.store span{font-size:11px;color:var(--sub);font-weight:400;font-family:var(--fb)}
.store .ext{color:var(--aqua)}
.buy-sub{text-align:center;margin-top:18px;font-size:14px}
.buy-sub a{color:var(--aqua);font-weight:700}


/* in-store (Donki) */
.instore{max-width:560px;margin:22px auto 0}
.instore-label{font-family:var(--fd);font-weight:700;font-size:13px;color:var(--sub);text-align:center;margin-bottom:10px;position:relative}
.instore-label::before,.instore-label::after{content:"";position:absolute;top:50%;width:32%;height:1px;background:var(--line)}
.instore-label::before{left:0}.instore-label::after{right:0}
.instore-card{display:flex;align-items:center;gap:16px;background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:16px 20px}
.instore-card .donki-logo{width:120px;flex-shrink:0}
.instore-card p{font-size:14px;color:var(--ink);line-height:1.6}
.instore-card p span{font-size:11px;color:var(--sub)}
@media(max-width:520px){
  .instore-card{flex-direction:column;text-align:center;gap:10px}
  .instore-card .donki-logo{width:140px}
}

/* line band */
.lineband{background:#fff}
.lineband .in{display:grid;gap:20px;align-items:center;background:var(--mist2);border:1px solid var(--line);border-radius:28px;padding:28px;text-align:center}
.lineband img{width:130px;margin:0 auto;border-radius:12px;background:#fff;padding:6px;border:1px solid var(--line)}
.btn-line{background:#06c755;color:#fff;padding:13px 28px;font-size:14.5px}
.btn-line:hover{background:#05a848}
.lineband h2{font-size:20px}
.lineband p{font-size:14px;color:var(--sub)}


/* floating buy button */
.fab-buy{position:fixed;right:16px;bottom:18px;z-index:70;display:inline-flex;align-items:center;gap:8px;
  background:var(--aqua);color:#fff;font-family:var(--fd);font-weight:700;font-size:14px;
  padding:13px 22px;border-radius:999px;box-shadow:0 10px 28px rgba(0,167,230,.38);
  transform:translateX(140%);opacity:0;transition:transform .7s cubic-bezier(.22,.61,.31,1),opacity .5s ease,background .2s;pointer-events:none}
.fab-buy.show{transform:none;opacity:1;pointer-events:auto}
.fab-buy:hover{background:var(--aqua-deep)}
.fab-buy svg{flex-shrink:0}
@media(min-width:840px){
  .fab-buy{right:24px;bottom:24px;padding:14px 26px;font-size:14.5px}
}
@media (prefers-reduced-motion: reduce){.fab-buy{transition:opacity .3s}.fab-buy.show{transform:none}}


/* SNS */
.line-actions{display:flex;flex-direction:column;align-items:center;gap:10px}
.ig-sub{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink);font-family:var(--fd);font-weight:500;padding:9px 18px;border:1.5px solid var(--line);border-radius:999px;background:#fff;transition:.2s}
.ig-sub:hover{border-color:#C837AB;color:#C837AB}
.ft-sns{display:flex;gap:14px;margin-top:16px}
.ft-sns a{display:inline-flex;align-items:center;justify-content:center;transition:transform .2s,opacity .2s}
.ft-sns a:hover{transform:translateY(-2px);opacity:.85}
@media(min-width:840px){
  .line-actions{flex-direction:column}
}

/* footer */
.ft-logo-img{height:34px;width:auto;display:block}

footer{background:#1a6f9e;color:#eaf6fa;padding:46px 0 30px;font-size:13px}
.ft{display:grid;gap:26px}
.ft .logo{color:#fff}
.ft ul{list-style:none;display:grid;gap:8px}
.ft a:hover{color:#fff}
.copy{margin-top:30px;font-size:11px;color:rgba(255,255,255,.72);text-align:center}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.rv{opacity:1;transform:none;transition:none}.hero-copy>*,.hero-visual{animation:none;opacity:1}.hero-inset{animation:none;opacity:1}.bgbub{display:none}}

/* desktop */
@media(min-width:840px){
  nav{display:flex}
  .hero{padding-bottom:72px}
  .hero-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:center;padding-top:40px;padding-bottom:28px}
  .hero-photo{border-radius:36px 36px 46% 46% / 36px 36px 90px 90px;max-height:none}
  .hero-copy{text-align:left;padding:0}
  .hero-copy .hero-ctas{margin-bottom:0}
  .hero-ctas{justify-content:flex-start}
  .step-grid{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(3,1fr)}
  .story-in{grid-template-columns:1fr 1.15fr;gap:44px}
  .voices .v-grid{grid-template-columns:repeat(3,1fr)}
  .buy-btns{max-width:560px}
  .lineband .in{grid-template-columns:auto 1fr auto;text-align:left;padding:30px 40px}
  .lineband img{margin:0}
  .ft{grid-template-columns:1.2fr 1fr 1fr}
}

/* TikTok (v29) */
.store-tiktok{border-color:#b8bec4;background:linear-gradient(180deg,#fff,#f1f3f5)}
.store-tiktok::before{background:#010101}
.store-tiktok .store-brand{color:#010101}