:root{
  --red:#E60012; --red-deep:#B00010; --ink:#0E0B0A; --ink-2:#1B1614;
  --paper:#F6F3F1; --paper-2:#ECE6E2; --white:#FFFFFF;
  --gold:#E0A82E; --grey:#6E6560; --line:rgba(14,11,10,.12);
  --jp:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",sans-serif;
  --maxw:1080px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--jp);color:var(--ink);background:var(--paper);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;text-wrap:balance;line-height:1.12;letter-spacing:.01em}
h1{font-weight:900;font-size:clamp(2.4rem,7vw,4.4rem)}
h2{font-weight:900;font-size:clamp(1.7rem,4.4vw,2.7rem)}
.eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.28em;text-transform:uppercase}

/* ---- sticky header ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(14,11,10,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.brand img{width:34px;height:34px;border-radius:9px}
.brand b{font-size:1.05rem;font-weight:900;letter-spacing:.02em}
.nav-cta{background:var(--red);color:#fff;font-weight:800;font-size:.82rem;padding:9px 16px;
  border-radius:999px;white-space:nowrap;border:1px solid rgba(255,255,255,.18)}
.nav-cta:active{background:var(--red-deep)}

/* ---- hero ---- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(120% 90% at 78% -10%,rgba(230,0,18,.55),transparent 55%),
    radial-gradient(80% 70% at 8% 110%,rgba(230,0,18,.18),transparent 60%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.06;
  background:repeating-linear-gradient(115deg,#fff 0 2px,transparent 2px 22px)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center;
  padding-top:64px;padding-bottom:64px}
.hero-eyebrow{color:#fff;opacity:.8;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.hero-eyebrow span{width:26px;height:2px;background:var(--red);display:inline-block}
.hero h1 em{font-style:normal;color:var(--red);
  text-shadow:0 0 30px rgba(230,0,18,.55)}
.hero p.lead{font-size:clamp(1rem,1.7vw,1.18rem);color:rgba(255,255,255,.82);
  margin:22px 0 30px;max-width:none}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:900;border-radius:14px;
  padding:15px 24px;font-size:1rem;border:1.5px solid transparent;cursor:pointer;
  transition:transform .12s ease}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 30px rgba(230,0,18,.35)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn small{display:block;font-size:.66rem;font-weight:700;opacity:.8;letter-spacing:.04em}
.btn b{font-size:1.02rem}
.cta-note{margin-top:14px;font-size:.78rem;color:rgba(255,255,255,.6)}
.cta-note b{color:#fff}

/* phone mock */
.phone-wrap{display:flex;justify-content:center}
.phone{position:relative;width:min(280px,80vw);aspect-ratio:9/19;border-radius:38px;
  background:#000;padding:9px;box-shadow:0 30px 70px rgba(0,0,0,.55),0 0 0 2px rgba(255,255,255,.08);
  transform:rotate(2.5deg)}
.screen{width:100%;height:100%;border-radius:30px;overflow:hidden;background:#000;
  display:flex;flex-direction:column}
.statusbar{flex:0 0 26px;background:#000;display:flex;align-items:center;justify-content:center}
.island{width:82px;height:15px;background:#0a0a0a;border:1px solid rgba(255,255,255,.14);border-radius:999px}
.screen .shot-img{flex:1;width:100%;min-height:0;object-fit:contain;object-position:top}

/* ---- section shell ---- */
section{padding:72px 0}
.sec-head{max-width:60ch;margin-bottom:38px}
.sec-head .eyebrow{color:var(--red);margin-bottom:12px;display:block}
.sec-head p{color:var(--grey);margin:14px 0 0;font-size:1.02rem}

/* features */
.features{background:var(--paper)}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fcard{background:#fff;border:1px solid var(--line);border-radius:16px;position:relative;overflow:hidden;
  display:flex;align-items:center;gap:15px;padding:14px 16px;
  transition:transform .16s ease,box-shadow .16s ease}
.fcard:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(14,11,10,.1)}
.fcard .shot{flex:0 0 76px;width:76px;height:76px;border-radius:14px;display:grid;place-items:center;
  overflow:hidden;padding:9px;background:var(--paper-2)}
.fcard .shot img{max-width:100%;max-height:100%;object-fit:contain;
  filter:drop-shadow(0 5px 9px rgba(0,0,0,.28))}
.fcard .shot--dark{background:radial-gradient(120% 120% at 50% 0,#2a0206,#0e0b0a)}
.fcard .shot--red{background:linear-gradient(155deg,var(--red),var(--red-deep))}
.fcard .shot--gold{background:linear-gradient(155deg,#4a3708,#181206)}
.fcard .shot--navy{background:linear-gradient(155deg,#132a52,#070d1c)}
.fcard .shot--slate{background:linear-gradient(155deg,#2c2c34,#131317)}
.fcard .shot--cream{background:linear-gradient(155deg,#fbeaca,#f1ddb9)}
.fcard .body{min-width:0}
.fcard h3{font-size:1rem;font-weight:900;line-height:1.25}
.fcard .new{display:inline-block;background:var(--gold);color:#111;font-size:.54rem;font-weight:900;
  letter-spacing:.12em;padding:2px 7px;border-radius:999px;vertical-align:middle;margin-left:5px}
.fcard p{margin:4px 0 0;color:var(--grey);font-size:.8rem;line-height:1.5}

/* weekend timeline */
.timeline{display:flex;flex-direction:column}
.tl-block{display:grid;grid-template-columns:200px 1fr;gap:28px;padding:32px 0;border-top:1px solid var(--line)}
.tl-block:first-child{border-top:none;padding-top:6px}
.tl-when{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.tl-when b{font-size:1.18rem;font-weight:900;line-height:1.35}
.tl-time{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;
  font-size:.72rem;font-weight:900;letter-spacing:.2em;padding:7px 16px;border-radius:999px}
.tl-time--live{background:var(--red)}
.tl-time--live::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff;
  animation:tl-pulse 1.2s ease-in-out infinite}
@keyframes tl-pulse{0%,100%{opacity:1}50%{opacity:.25}}
.tl-body{display:flex;flex-direction:column;gap:12px;min-width:0}
.tl-chips{display:flex;gap:8px;flex-wrap:wrap}
.tl-chips span{background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;font-size:.8rem;font-weight:700}
.live-card{background:linear-gradient(150deg,var(--red),var(--red-deep));color:#fff;border-radius:18px;
  padding:22px 24px;display:flex;gap:22px;align-items:center;box-shadow:0 14px 34px rgba(230,0,18,.28)}
.live-card .lc-stamps{display:grid;grid-template-columns:1fr 1fr;gap:8px;flex:0 0 152px}
.live-card .lc-stamps img{width:100%;background:#fff;border-radius:10px;padding:4px;display:block}
.live-card h3{font-size:1.18rem;font-weight:900;line-height:1.35}
.live-card p{margin:8px 0 0;font-size:.86rem;color:rgba(255,255,255,.92);line-height:1.65}
@media(max-width:820px){
  .tl-block{grid-template-columns:1fr;gap:14px;padding:26px 0}
  .live-card{flex-direction:column;align-items:stretch}
  .live-card .lc-stamps{flex:none;width:70%;margin:0 auto}
}

/* mid CTA bar */
.cta-bar{background:linear-gradient(120deg,var(--red),var(--red-deep));padding:26px 0}
.cta-bar .wrap{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;text-align:center}
.cta-bar p{margin:0;color:#fff;font-weight:900;font-size:1.05rem}
.cta-bar .btn{padding:12px 22px;flex:0 0 auto}

/* showcase — real screens in phone frames */
.showcase{background:var(--ink);color:#fff}
.showcase .sec-head .eyebrow{color:var(--red)}
.showcase .sec-head p{color:rgba(255,255,255,.7)}
.shots-row{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 16px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.shots-row::-webkit-scrollbar{display:none}
.shot-card{flex:0 0 210px;width:210px;scroll-snap-align:center}
@media(min-width:980px){.shots-row{justify-content:center;overflow-x:visible}}
.sec-head--tight{margin-bottom:24px}
.showcase{padding-top:52px;padding-bottom:52px}
.shot-card .cap .t{display:inline-block;background:rgba(255,255,255,.14);color:#fff;font-size:.6rem;
  font-weight:900;letter-spacing:.18em;padding:3px 11px;border-radius:999px;margin-bottom:7px}
.shot-card .cap .t--live{background:var(--red)}
.mini-phone{width:210px;aspect-ratio:9/19.3;border-radius:30px;background:#000;padding:7px;margin:0 auto;
  display:flex;flex-direction:column;overflow:hidden;
  box-shadow:0 22px 48px rgba(0,0,0,.5),0 0 0 1.5px rgba(255,255,255,.09)}
.mp-bar{flex:0 0 22px;display:flex;align-items:center;justify-content:center}
.mp-bar span{width:72px;height:13px;background:#0a0a0a;border:1px solid rgba(255,255,255,.14);border-radius:999px}
.mini-phone img{flex:1;width:100%;min-height:0;object-fit:contain;object-position:top;border-radius:0 0 24px 24px;display:block}
.shot-card .cap{margin-top:16px;text-align:center;font-weight:800;font-size:.98rem}
.shot-card .cap small{display:block;color:rgba(255,255,255,.6);font-weight:600;font-size:.78rem;margin-top:3px}
.fcard .tag{position:absolute;top:10px;right:10px;font-size:.56rem;font-weight:900;color:#111;
  background:var(--gold);letter-spacing:.12em;padding:4px 9px;border-radius:999px;z-index:2}

/* install (dark) */
.install{background:var(--ink);color:#fff}
.install .sec-head .eyebrow{color:var(--red)}
.install .sec-head p{color:rgba(255,255,255,.7)}
.os-toggle{display:inline-flex;background:rgba(255,255,255,.08);border-radius:999px;padding:5px;gap:4px;
  margin-bottom:30px;border:1px solid rgba(255,255,255,.12)}
.os-toggle button{background:transparent;border:none;color:rgba(255,255,255,.7);font-family:var(--jp);
  font-weight:800;font-size:.86rem;padding:9px 20px;border-radius:999px;cursor:pointer}
.os-toggle button.on{background:var(--white);color:var(--ink)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:var(--ink-2);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:24px}
.step .n{font-size:.8rem;font-weight:900;color:var(--red);letter-spacing:.1em;
  font-variant-numeric:tabular-nums;margin-bottom:10px}
.step h3{font-size:1.05rem;font-weight:900}
.step p{margin:8px 0 0;color:rgba(255,255,255,.65);font-size:.86rem}
.badge-row{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.store-badge{display:inline-flex;align-items:center;gap:11px;background:#000;border:1px solid rgba(255,255,255,.25);
  color:#fff;padding:12px 20px;border-radius:14px;font-weight:800}
.store-badge .big{font-size:1.05rem;line-height:1}
.store-badge small{display:block;font-size:.6rem;opacity:.8;font-weight:700}
.free-note{font-size:.8rem;color:rgba(255,255,255,.55)}

/* PC向けQRコード（モバイル端末では非表示） */
.pc-qr{display:none}
@media(min-width:821px){
  .pc-qr{display:flex;align-items:center;gap:18px;margin-top:32px;padding:18px 22px;
    background:var(--ink-2);border:1px solid rgba(255,255,255,.1);border-radius:16px;max-width:520px}
  .pc-qr img{flex:0 0 auto;border-radius:8px;background:#fff;padding:6px}
  .pc-qr b{font-size:.95rem;font-weight:900}
  .pc-qr p{margin:6px 0 0;font-size:.82rem;color:rgba(255,255,255,.65);line-height:1.5}
}

/* mascot band */
.mascot{background:var(--red);color:#fff;position:relative;overflow:hidden}
.mascot .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center}
.mascot img{width:min(220px,60%);margin:0 auto;filter:drop-shadow(0 16px 30px rgba(0,0,0,.3))}
.mascot h2{color:#fff}
.mascot p{color:rgba(255,255,255,.9);margin-top:16px;font-size:1.05rem;max-width:42ch}
.mascot .eyebrow{color:rgba(255,255,255,.75);display:block;margin-bottom:12px}

/* final cta */
.final{background:var(--ink);color:#fff;text-align:center}
.final h2{max-width:20ch;margin:0 auto 10px}
.final p{color:rgba(255,255,255,.7);margin:0 auto 26px;max-width:44ch}
.final .cta-row{justify-content:center}

footer{background:#080606;color:rgba(255,255,255,.5);padding:30px 0;font-size:.8rem}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:820px){
  .hero .wrap{grid-template-columns:1fr;gap:30px;padding-top:28px}
  .phone-wrap{margin-top:8px}
  .phone{width:min(220px,62vw)}
  .fgrid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .mascot .wrap{grid-template-columns:1fr;text-align:center}
  .mascot .eyebrow{margin-inline:auto}
}
@media(max-width:520px){.fgrid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}