/* Fitness AI — 独立ブランドの LP スタイル（外部 CSS に依存しない） */
:root{
  --ink:#0b1220;--ink-2:#3b4556;--ink-3:#6b7280;
  --bg:#ffffff;--bg-2:#f5f7fb;--line:#e5e9f0;
  --brand:#0a5cff;--brand-2:#0846c4;--accent:#c8ff3d;--accent-ink:#1d2a00;
  --radius:16px;--maxw:1120px;
  font-family:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.en{font-family:Poppins,"Noto Sans JP",sans-serif;letter-spacing:.02em}

/* header */
.hd{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.hd__in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:baseline;gap:8px;text-decoration:none;font-weight:800;font-size:1.25rem;letter-spacing:.01em}
.logo__mark{display:inline-block;width:12px;height:12px;border-radius:3px;background:var(--brand);position:relative;top:-1px}
.logo__sub{font-size:.875rem;font-weight:500;color:var(--ink-3)}
.hd__nav{display:flex;gap:22px;font-size:.92rem}
.hd__nav a{text-decoration:none;color:var(--ink-2);padding:12px 0}
.hd__nav a:hover{color:var(--brand)}
@media (max-width:860px){.hd__nav{display:none}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:700;text-decoration:none;font-size:.95rem;border:2px solid transparent;transition:transform .12s,background .15s,color .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:var(--brand-2)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--accent{background:var(--accent);color:var(--accent-ink)}
.btn--accent:hover{filter:brightness(.95)}
.btn--lg{padding:16px 30px;font-size:1.05rem}

/* hero */
.hero{padding:72px 0 48px;background:
  radial-gradient(900px 400px at 85% -10%,rgba(10,92,255,.10),transparent 60%),
  radial-gradient(600px 300px at 0% 100%,rgba(200,255,61,.25),transparent 60%)}
.hero__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){.hero__grid{grid-template-columns:1fr}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;font-weight:700;color:var(--brand);background:rgba(10,92,255,.08);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:clamp(1.9rem,4.2vw,3.1rem);line-height:1.25;margin:0 0 18px;font-weight:800;letter-spacing:-.01em}
.hero h1 .u{background:linear-gradient(transparent 62%,var(--accent) 62%)}
.hero__lead{font-size:1.08rem;color:var(--ink-2);margin:0 0 26px;max-width:36em}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px}
.hero__note{font-size:.875rem;color:var(--ink-3);margin:0}
.proof{display:grid;grid-template-columns:repeat(3,1fr);margin-top:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.proof__item{padding:12px 16px}
.proof__item+.proof__item{border-left:1px solid var(--line)}
.proof__v{font-size:1rem;font-weight:800;color:var(--ink);line-height:1.35}
.proof__v small{font-size:.875rem;font-weight:600;color:var(--ink-2)}
.proof__l{font-size:.875rem;color:var(--ink-3);margin-top:2px;line-height:1.5}
@media (max-width:520px){.proof{grid-template-columns:1fr}.proof__item+.proof__item{border-left:0;border-top:1px solid var(--line)}}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}
@media (max-width:520px){.kpis{grid-template-columns:1fr}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.kpi__n{font-size:1.8rem;font-weight:800;line-height:1.1;color:var(--brand)}
.kpi__n small{font-size:.9rem;color:var(--ink);font-weight:700;margin-left:4px}
.kpi__l{font-size:.875rem;color:var(--ink-3);margin-top:6px}

/* report card mock */
.card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 50px rgba(11,18,32,.08);overflow:hidden}
.card__bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.875rem;color:var(--ink-3)}
.card__bar b{color:var(--ink)}
.card__body{padding:18px 18px 20px}
.rep{display:grid;gap:10px}
.rep__row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 12px;border-radius:10px;background:var(--bg-2)}
.rep__row b{font-size:1.15rem}
.rep__row .up{color:#0a7a33;font-weight:700;font-size:.875rem}
.rep__txt{font-size:.9rem;color:var(--ink-2);margin:12px 0 0;line-height:1.7}
.tag{display:inline-block;font-size:.875rem;font-weight:700;padding:2px 8px;border-radius:999px;background:rgba(10,92,255,.1);color:var(--brand);margin-right:6px}

/* sections */
.sec{padding:72px 0}
.sec--alt{background:var(--bg-2)}
.sec__head{max-width:760px;margin:0 0 34px}
.sec__kicker{font-size:.875rem;font-weight:700;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px}
.sec h2{font-size:clamp(1.5rem,3vw,2.15rem);line-height:1.3;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
.sec__lead{color:var(--ink-2);margin:0;font-size:1.02rem}
.grid{display:grid;gap:18px}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
@media (max-width:980px){.grid--4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){.grid--4,.grid--3,.grid--2{grid-template-columns:1fr}}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px}
.tile__num{font-family:Poppins,sans-serif;font-weight:700;color:var(--brand);font-size:.875rem;letter-spacing:.06em;margin-bottom:10px}
.tile h3{font-size:1.1rem;margin:0 0 8px;line-height:1.4}
.tile p{margin:0;color:var(--ink-2);font-size:.96rem}
.tile--dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.tile--dark p{color:rgba(255,255,255,.78)}
.tile--dark .tile__num{color:var(--accent)}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:0;margin:0;list-style:none}
@media (max-width:760px){.steps{grid-template-columns:1fr}}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative}
.steps li::before{counter-increment:s;content:"0" counter(s);font-family:Poppins,sans-serif;font-weight:700;color:var(--brand);font-size:.9rem;letter-spacing:.06em;display:block;margin-bottom:10px}
.steps h3{font-size:1.1rem;margin:0 0 8px}
.steps p{margin:0;color:var(--ink-2);font-size:.96rem}
.steps .when{display:inline-block;margin-top:12px;font-size:.875rem;font-weight:700;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:3px 10px}

/* price */
.price{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
@media (max-width:860px){.price{grid-template-columns:1fr}}
.price__main{background:#fff;border:2px solid var(--brand);border-radius:20px;padding:30px 28px}
.price__amt{font-size:2.6rem;font-weight:800;line-height:1.05;letter-spacing:-.02em}
.price__amt small{font-size:1rem;font-weight:600;color:var(--ink-3);margin-left:6px}
.price ul{margin:16px 0 0;padding-left:1.2em}
.price li{margin:6px 0;color:var(--ink-2)}
.price__side{background:var(--ink);color:#fff;border-radius:20px;padding:30px 28px;display:flex;flex-direction:column;justify-content:space-between}
.price__side h3{margin:0 0 10px;font-size:1.25rem}
.price__side p{margin:0 0 14px;color:rgba(255,255,255,.8);font-size:.96rem}
.price__side .btn{align-self:flex-start;margin-top:8px}
.muted{font-size:.875rem;color:var(--ink-3)}

/* faq */
.faq{display:grid;gap:12px;max-width:860px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0}
.faq summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700;font-size:1.02rem;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-weight:800}
.faq details[open] summary::after{content:"−"}
.faq p{margin:0;padding:0 20px 18px;color:var(--ink-2)}

/* articles */
.alist{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.alist a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;font-weight:600}
.alist a:hover{border-color:var(--brand)}

/* cta band */
.band{background:linear-gradient(120deg,var(--brand),#2f7bff 60%,#4bb3ff);color:#fff;padding:64px 0}
.band h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 12px;font-weight:800}
.band p{margin:0 0 22px;color:rgba(255,255,255,.9);max-width:44em}
.band .btn--ghost{background:#fff;border-color:#fff;color:var(--brand)}

/* footer */
.ft{padding:40px 0 28px;border-top:1px solid var(--line);font-size:.88rem;color:var(--ink-3)}
.ft__in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center}
.ft a{color:var(--ink-3);text-decoration:none;display:inline-block;padding:2px 0}
.ft a:hover{color:var(--ink)}
.ft__links{display:flex;flex-wrap:wrap;gap:16px}

/* article page */
.article{max-width:820px;margin:0 auto;padding:40px 20px 72px;line-height:1.9;font-size:1.02rem}
.article h1{font-size:clamp(1.6rem,3.2vw,2.1rem);line-height:1.35;margin:0 0 12px;font-weight:800}
.article .meta{font-size:.85rem;color:var(--ink-3);margin:0 0 28px}
.article h2{font-size:1.4rem;margin:44px 0 12px;line-height:1.4;font-weight:800}
.article h3{font-size:1.1rem;margin:28px 0 8px}
.article .answer{background:var(--bg-2);border-left:4px solid var(--brand);border-radius:10px;padding:18px 20px;margin:0 0 24px}
.article .answer p{margin:0 0 8px}
.article table{width:100%;border-collapse:collapse;margin:14px 0 8px;font-size:.95rem;background:#fff}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.article th{background:var(--bg-2);font-weight:700}
.article .src{font-size:.82rem;color:var(--ink-3);margin:0 0 18px}
.article .cta{background:var(--ink);color:#fff;border-radius:16px;padding:22px 24px;margin:40px 0 0}
.article .cta a{color:var(--accent);font-weight:700}
.article ul,.article ol{padding-left:1.4em}
.article li{margin:4px 0}
.crumb{font-size:.82rem;color:var(--ink-3);padding:14px 0 0}
.crumb a{text-decoration:none}

/* 写真とアイコン（2026-09-16） */
.hero__visual{position:relative}
.hero__photo{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:22px;box-shadow:0 24px 60px rgba(11,18,32,.14);display:block}
.card--float{position:relative;margin:-64px 16px 0 -24px;font-size:.92rem;z-index:1}
.card--float .rep__row{padding:8px 10px}
.card--float .rep__row b{font-size:1.05rem}
.card--float .rep__txt{font-size:.82rem;margin-top:10px}
.card--float .card__body{padding:14px 14px 16px}
@media (max-width:900px){.card--float{margin:-40px 16px 0;font-size:1rem}}
.ico{width:28px;height:28px;color:var(--brand);margin-bottom:10px;display:block}
.why{display:grid;grid-template-columns:1fr 1.05fr;gap:24px;align-items:stretch}
.why__photo{margin:0;border-radius:20px;overflow:hidden;min-height:320px}
.why__photo img{width:100%;height:100%;object-fit:cover;display:block}
.why__list{display:grid;gap:14px;align-content:center}
@media (max-width:860px){.why{grid-template-columns:1fr}.why__photo{min-height:220px}}
.banner{margin:0 0 22px;border-radius:20px;overflow:hidden;max-height:380px}
.banner img{width:100%;height:100%;object-fit:cover;display:block}

/* アプリ画面のモック（2026-09-16。写真からプロダクト画面へ差し替え） */
.app{border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 20px 50px rgba(11,18,32,.10);overflow:hidden}
.app__bar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.app__dots{display:flex;gap:5px}
.app__dots i{width:9px;height:9px;border-radius:50%;background:#d7dce5;display:block}
.app__title{font-size:.875rem;color:var(--ink-2);font-weight:700}
.app__when{margin-left:auto;font-size:.875rem;color:var(--ink-3)}
.app__body{padding:16px 16px 18px}
.app__tabs{display:flex;gap:6px;padding:10px 14px 0;border-bottom:1px solid var(--line);background:#fff}
.app__tab{font-size:.875rem;font-weight:700;color:var(--ink-3);padding:8px 12px;border-radius:8px 8px 0 0}
.app__tab.is-on{color:var(--brand);background:rgba(10,92,255,.08)}
.big{display:flex;align-items:baseline;gap:10px;margin:0 0 14px}
.big__n{font-size:2.4rem;font-weight:800;line-height:1;letter-spacing:-.02em}
.big__d{font-size:.875rem;font-weight:700;color:#0a7a33;background:rgba(10,122,51,.10);border-radius:999px;padding:3px 10px}
.big__l{font-size:.875rem;color:var(--ink-3)}
.bars{display:grid;gap:9px;margin:0 0 4px}
.bars__row{display:grid;grid-template-columns:11em 1fr auto;align-items:center;gap:10px;font-size:.875rem}
.bars__t{color:var(--ink-2)}
.bars__track{height:10px;border-radius:999px;background:var(--bg-2);overflow:hidden}
.bars__fill{height:100%;border-radius:999px;background:var(--brand)}
.bars__v{font-weight:700;font-size:.9rem}
.log{border-top:1px solid var(--line);margin-top:14px;padding-top:12px;display:grid;gap:8px}
.log__row{display:grid;grid-template-columns:auto 1fr;gap:10px;font-size:.875rem;color:var(--ink-2);line-height:1.6}
.log__tag{font-size:.8rem;font-weight:700;padding:2px 8px;border-radius:999px;background:rgba(10,92,255,.1);color:var(--brand);white-space:nowrap;height:fit-content}
.log__tag--done{background:rgba(10,122,51,.10);color:#0a7a33}
.chart{display:flex;align-items:flex-end;gap:7px;height:168px;padding-top:6px}
.chart__col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:6px;height:100%}
.chart__bar{width:100%;border-radius:6px 6px 0 0;background:#cdd7e6}
.chart__bar--hi{background:var(--brand)}
.chart__bar--low{background:#f0b4a0}
.chart__lab{font-size:.8rem;color:var(--ink-3)}
.chart__note{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:.875rem;color:var(--ink-2)}
.chart__key{width:12px;height:12px;border-radius:3px;background:#f0b4a0;flex:none}
.conn{display:grid;gap:8px}
.conn__row{display:flex;align-items:center;gap:10px;padding:11px 13px;border:1px solid var(--line);border-radius:11px;font-size:.92rem}
.conn__s{font-size:.8rem;font-weight:700;border-radius:999px;padding:2px 10px;margin-left:auto;white-space:nowrap}
.conn__s--ok{background:rgba(10,122,51,.10);color:#0a7a33}
.conn__s--wait{background:var(--bg-2);color:var(--ink-3)}
.alert{border:1px solid #f3c6b4;background:#fff7f3;border-radius:12px;padding:14px 16px;display:grid;gap:6px}
.alert__t{font-weight:800;color:#a8380f}
.alert__b{font-size:.92rem;color:var(--ink-2);line-height:1.7}
.appgrid{display:grid;grid-template-columns:1fr 1.05fr;gap:24px;align-items:center}
@media (max-width:900px){.appgrid{grid-template-columns:1fr}}