:root{--purple:#7552c9;--purple-dark:#4b2f9a;--bg:#f7f5fc;--ink:#251f38;--muted:#625a78;--red:#e5484d;--green:#7cc36a;--yellow:#f7c544;--blue:#3fa9e0}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",Meiryo,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--purple-dark)}
h1,h2,h3,.sub,.lead{word-break:auto-phrase}
.nb{display:inline-block}
.wrap{width:min(1080px,100% - 32px);margin-inline:auto}
.site-header{background:#fff;border-bottom:1px solid #ebe6f7}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{font-weight:700;text-decoration:none;color:var(--purple-dark)}
.site-header nav{display:flex;align-items:center;gap:1.1rem;font-size:.9rem}
.site-header nav a{text-decoration:none;color:var(--muted)}
.site-header nav a.lang{border:1px solid #ddd3f3;border-radius:999px;padding:.15em .8em;color:var(--purple-dark)}
@media (max-width:520px){.site-header nav a.hide-sm{display:none}}
.hero{background:linear-gradient(155deg,#a58ae6 0%,#7552c9 55%,#5a3bab 100%);color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;padding:56px 0 0}
.hero .app{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.hero .app img{width:64px}
.hero .app span{font-weight:700;opacity:.95}
.hero .lead{font-size:1.05rem;opacity:.95}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.2;margin:.25em 0 .4em}
.hero p.desc{font-size:1.05rem;opacity:.95;max-width:34em}
.proof{display:inline-block;margin-top:18px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:.35em 1em;font-weight:700;font-size:.95rem}
.badges{display:flex;gap:14px;flex-wrap:wrap;margin:22px 0 40px}
.badges img{height:50px;width:auto}
.hero-img{align-self:end;max-width:460px;width:100%;margin-inline:auto}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr;text-align:center}.hero .app{justify-content:center}.hero p.desc{margin-inline:auto}.badges{justify-content:center}.hero-img{max-width:340px}}
section{padding:64px 0}
h2{font-size:clamp(1.45rem,3.5vw,2rem);line-height:1.35;text-align:center;margin-bottom:.55em;color:var(--purple-dark)}
.sub{text-align:center;color:var(--muted);max-width:660px;margin:0 auto 36px}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.features{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.features{grid-template-columns:1fr}}
.feature{background:#fff;border-radius:18px;padding:22px 20px;box-shadow:0 6px 20px rgba(70,40,150,.08);border-top:5px solid var(--purple)}
.feature:nth-child(4n+1){border-top-color:var(--red)}.feature:nth-child(4n+2){border-top-color:var(--green)}.feature:nth-child(4n+3){border-top-color:var(--yellow)}.feature:nth-child(4n+4){border-top-color:var(--blue)}
.feature .icon{font-size:1.7rem;line-height:1}
.feature h3{font-size:1.06rem;margin:.55em 0 .3em}
.feature p{font-size:.93rem;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
@media (max-width:760px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border-radius:18px;padding:24px 22px;box-shadow:0 6px 20px rgba(70,40,150,.08);position:relative}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--purple);color:#fff;font-weight:700;margin-bottom:10px}
.step h3{font-size:1.06rem;margin-bottom:.3em}
.step p{font-size:.93rem;color:var(--muted)}
.who{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.who span{background:#fff;border:1px solid #e1d8f4;border-radius:999px;padding:.45em 1.1em;font-size:.95rem}
.alt{background:#fff}
.faq{max-width:780px;margin:0 auto}
.faq details{background:var(--bg);border-radius:14px;margin-bottom:12px;padding:16px 20px}
.faq summary{font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q. ";color:var(--purple)}
.faq details p{margin-top:.6em;color:var(--muted)}
.cta{background:linear-gradient(155deg,#7552c9,#4b2f9a);color:#fff;text-align:center}
.cta h2{color:#fff}.cta .badges{justify-content:center;margin-bottom:0}
footer{background:#1f1833;color:#cfc6e6;font-size:.88rem;padding:30px 0;text-align:center}
footer nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.4em 1.4em}
footer a{color:#fff}
footer p{margin-top:.8em}