:root{
  --bg:#12151c; --panel:#1a1f2a; --panel2:#202634; --line:#2c3344;
  --tx:#eef2f7; --mut:#9aa6b8; --amber:#ffa726; --amber2:#ff8f00;
  --blue:#4d9fff;
  --radius:14px; --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--tx);font-family:"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",sans-serif;line-height:1.75}
img{max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

header.site{position:sticky;top:0;z-index:50;background:rgba(18,21,28,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo img{border-radius:8px}
.logo span{font-size:1.05rem;letter-spacing:.01em}
.logo .ja{font-weight:400;font-size:.76rem;color:var(--mut);margin-left:6px}
nav.main{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
nav.main a{font-size:.9rem;font-weight:600;color:var(--mut);padding:8px 12px;border-radius:8px}
nav.main a:hover{color:var(--tx);background:var(--panel2)}
nav.main a.active{color:var(--amber2);background:rgba(255,167,38,.12)}
nav.main a.btn{background:var(--amber);color:#1a1208;padding:9px 16px;border-radius:8px;font-weight:700}
nav.main a.btn:hover{filter:brightness(1.08)}
.nav-toggle{display:none;background:none;border:0;color:var(--tx);font-size:1.5rem;cursor:pointer}

.btn{display:inline-block;background:var(--amber);color:#1a1208;font-weight:700;padding:13px 26px;border-radius:8px;font-size:.95rem;transition:.2s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.big{font-size:1.05rem;padding:15px 30px}
.btn.ghost{background:transparent;color:var(--amber2);border:1.5px solid var(--line)}
.btn.ghost:hover{border-color:var(--amber)}
.link{color:var(--amber2);font-weight:600}
.link:hover{text-decoration:underline}

.hero{padding:96px 0 88px;text-align:center;background:
  radial-gradient(780px 400px at 50% -10%,rgba(255,167,38,.22),transparent 60%),
  radial-gradient(700px 400px at 10% 110%,rgba(77,159,255,.12),transparent 55%),
  var(--bg);border-bottom:1px solid var(--line)}
.kicker{display:inline-block;font-size:.74rem;letter-spacing:.26em;color:var(--amber);font-weight:700;margin-bottom:18px}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.2;font-weight:900;letter-spacing:-.01em}
.hero h1 .accent{color:var(--amber)}
.hero .sub{max-width:700px;margin:22px auto 0;color:var(--mut);font-size:1.06rem}
.hero .cta{margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.blk{padding:62px 0;border-bottom:1px solid var(--line)}
.blk.alt{background:var(--panel)}
.blk.cta-band{background:linear-gradient(135deg,#221a0d,#141823);text-align:center}
h2.sec{font-size:clamp(1.4rem,2.8vw,2rem);font-weight:800;margin-bottom:6px}
.sec-sub{color:var(--mut);margin-bottom:28px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel2);border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--radius);padding:26px;transition:.2s;display:block}
a.card:hover{transform:translateY(-3px);border-color:#3a4559;border-left-color:var(--amber);box-shadow:0 14px 30px rgba(0,0,0,.4)}
.card h3{font-size:1.15rem;margin-bottom:10px;font-weight:800}
.card p{color:var(--mut);font-size:.95rem}
.card.mini{padding:24px}
.card.mini h3{font-size:1.02rem}
.more{color:var(--amber2);font-weight:700;display:inline-block;margin-top:14px;font-size:.92rem}

.pagehead{padding:70px 0 54px;background:linear-gradient(180deg,rgba(255,167,38,.1),transparent 70%),var(--bg);border-bottom:1px solid var(--line)}
.pagehead h1{font-size:clamp(1.7rem,3.6vw,2.8rem);font-weight:800}
.pagehead .sub{color:var(--mut);margin-top:14px;max-width:720px}

.steps{display:flex;flex-direction:column;gap:14px}
.step{display:flex;gap:16px;align-items:flex-start;background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.step>span{flex:0 0 34px;height:34px;border-radius:50%;background:var(--amber);color:#1a1208;display:flex;align-items:center;justify-content:center;font-weight:800}
.step strong{display:block;margin-bottom:4px}
.step p{color:var(--mut);font-size:.93rem}

.faqlist{max-width:820px;display:flex;flex-direction:column;gap:12px}
.faqlist details{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.faqlist summary{cursor:pointer;font-weight:700;color:var(--amber2)}
.faqlist .a{color:var(--mut);margin-top:10px;font-size:.95rem}

.cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);margin-bottom:12px}
.cta-band p{color:var(--mut);margin-bottom:24px}

footer.site{background:#0c0e13;padding:44px 0;border-top:3px solid var(--amber)}
.ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft p{color:var(--mut);font-size:.85rem;max-width:360px;margin-top:10px}
.ft nav{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.ft nav a{color:var(--mut);font-size:.9rem}
.ft nav a:hover{color:var(--amber2)}
.ft nav a.foot-cta{color:var(--amber);font-weight:700}

@media(max-width:880px){
  .nav-toggle{display:block}
  nav.main{position:fixed;top:64px;left:0;right:0;background:var(--panel);flex-direction:column;align-items:stretch;padding:12px 16px;display:none;border-bottom:1px solid var(--line)}
  nav.main.open{display:flex}
  nav.main a{padding:12px;border-radius:8px}
  .hero{padding:62px 0 58px}
  .g3,.g2{grid-template-columns:1fr}
  .blk{padding:46px 0}
  .ft{flex-direction:column}
  .ft nav{align-items:flex-start}
}