:root{
  --bg:#F4F6F8;--surface:#FFFFFF;--soft:#E1EAF1;--ink:#14202B;--muted:#4F5B66;--line:#CBD4DC;
  --accent:#264B66;--on-accent:#FFFFFF;--panel:#264B66;--panel-ink:#FFFFFF;--panel-mute:#D5E4F0;--signal:#C41E1E;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#000000;--surface:#15191E;--soft:#1B2C38;--ink:#F2F5F8;--muted:#A9B4BE;--line:#2E3740;
  --accent:#8CC4E0;--on-accent:#0A1A24;--panel:#1B2C38;--panel-ink:#FFFFFF;--panel-mute:#B5DAEE;--signal:#FF6B5E;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Noto Sans JP",Meiryo,system-ui,sans-serif;line-height:1.8;font-size:16px}
body:lang(en){line-height:1.65}
img{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--on-accent);padding:10px 16px;border-radius:10px;z-index:10}
.skip:focus{left:8px}
.top,.foot,main{max-width:1120px;margin:0 auto;padding-left:32px;padding-right:32px}
.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;text-decoration:none;color:var(--ink);font-weight:700;font-size:18px}
.brand img{width:36px;height:36px;border-radius:8px;display:block}
.top nav{display:flex;flex-wrap:wrap;gap:2px}
.top nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;white-space:nowrap}
.top nav a:hover{background:var(--soft)}
.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:end;background:var(--panel);color:var(--panel-ink);border-radius:14px;padding:56px 56px 0;overflow:hidden}
.hero-text{padding-bottom:56px}
.hero-icon{display:block;width:112px;height:112px;border-radius:25px;margin-bottom:20px}
.app-name{margin:0;font-size:22px;font-weight:700;line-height:1.4}
.app-name span{white-space:nowrap}
.app-sub{margin:0 0 16px;color:var(--panel-mute);font-weight:600}
.hero h1{margin:0 0 16px;font-size:44px;line-height:1.3;letter-spacing:0}
.hero h1:lang(en){font-size:38px}
.lead{margin:0 0 24px}
.hero .lead{max-width:34em;color:var(--panel-ink)}
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}
.badge-link{display:inline-block;line-height:0;border-radius:10px}
.badge{display:block;height:56px;width:auto}
.fine{margin:0;color:var(--panel-mute);font-size:14px}
.hero-shot{display:flex;justify-content:center;align-items:flex-end}
.phone{width:100%;max-width:290px;border-radius:34px;border:6px solid #0B0F13;background:#0B0F13;overflow:hidden;box-shadow:0 0 0 1px #3A444D}
.phone img{display:block;width:100%;height:auto;border-radius:28px}
.hero .phone{border-bottom:0;border-radius:34px 34px 0 0;max-height:520px}
.hero .phone img{border-radius:28px 28px 0 0}
h2{font-size:30px;line-height:1.35;margin:0 0 12px}
.contents,.features{padding-top:64px}
.sec-lead{margin:0 0 20px;color:var(--muted)}
.stats{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.stats li{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:2px}
.stats b{font-size:34px;line-height:1.2;color:var(--accent)}
.stats span{font-size:14px;color:var(--muted);line-height:1.5}
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.7fr);gap:40px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:32px 40px;margin-bottom:16px}
.feature.flip{grid-template-columns:minmax(0,.7fr) minmax(0,1fr)}
.feature.flip .ftext{order:2}
.feature .phone{justify-self:center}
.num{margin:0;font-size:14px;font-weight:700;color:var(--muted);letter-spacing:.06em}
.feature h3{margin:4px 0 10px;font-size:24px;line-height:1.4}
.feature p{margin:0}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:20px 24px}
.card h3{margin:0 0 6px;font-size:18px;line-height:1.5}
.card p{margin:0;color:var(--muted);font-size:15px}
.price{margin-top:48px;background:var(--soft);border-radius:14px;padding:32px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.price-text{flex:1 1 380px}
.price-line{margin:0 0 8px;font-size:26px;font-weight:700;color:var(--accent);line-height:1.4}
.price p:last-child{margin:0}
.foot{margin-top:40px;padding-bottom:48px}
.legal{margin:0 0 8px;color:var(--muted);font-size:13px;line-height:1.7;max-width:820px}
.flinks{display:flex;flex-wrap:wrap;gap:0 20px;border-top:1px solid var(--line);margin-top:16px;padding-top:8px}
.flinks a{min-height:44px;display:inline-flex;align-items:center;font-weight:600;font-size:14px}
.fbase{display:flex;justify-content:space-between;flex-wrap:wrap;gap:0 12px;color:var(--muted);font-size:13px}
.fbase a{color:var(--muted);min-height:44px;display:inline-flex;align-items:center}
.doc{max-width:820px;padding-top:24px;padding-bottom:8px}
.doc h1{font-size:34px;line-height:1.35;margin:0 0 12px}
.doc h2{font-size:21px;margin:28px 0 8px}
.doc p{margin:0 0 12px}
.doc .lead{font-size:18px;font-weight:600}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:8px 0}
.tags li{background:var(--soft);border-radius:8px;padding:6px 14px;font-weight:700;font-size:14px}
.date{color:var(--muted);font-size:14px;margin-top:28px}
.faq{display:flex;flex-direction:column;gap:10px}
details{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:0 20px}
summary{cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:700;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:24px;line-height:1;flex:none}
details[open] summary::after{content:"\2212"}
details p{margin:0 0 16px;color:var(--muted)}
.empty{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:20px 24px;margin:20px 0}
.empty p:last-child{margin:0;color:var(--muted)}
.nf{text-align:center;padding-top:48px;padding-bottom:32px}
.nf .big{font-size:110px;font-weight:700;line-height:1;margin:0;color:var(--accent)}
.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;min-height:48px;padding:0 24px;border-radius:10px;background:var(--accent);color:var(--on-accent);font-weight:700;text-decoration:none}
.btn.ghost{background:transparent;color:var(--accent);border:2px solid var(--accent)}
@media (max-width:860px){
  .top,.foot,main{padding-left:16px;padding-right:16px}
  .hero{grid-template-columns:minmax(0,1fr);padding:28px 20px 0;gap:24px}
  .hero-text{padding-bottom:0}
  .hero-icon{width:88px;height:88px;border-radius:20px}
  .hero h1{font-size:32px}
  .hero h1:lang(en){font-size:28px}
  .hero .phone{max-height:380px;max-width:260px}
  h2{font-size:26px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats li:last-child{grid-column:1 / -1}
  .feature,.feature.flip{grid-template-columns:minmax(0,1fr);gap:20px;padding:24px 20px}
  .feature.flip .ftext{order:0}
  .cards{grid-template-columns:minmax(0,1fr)}
  .price{padding:24px 20px}
  .doc h1{font-size:28px}
}
@media (prefers-reduced-motion:no-preference){a,.btn{transition:background-color .15s}}