:root{
  --bg:#f6f9fc; --ink:#10263d; --mut:#52667c; --panel:#fff; --panel2:#eaf1f8;
  --line:#d6e2ee; --blue:#0a7dff; --blue2:#0059b6; --amber:#f5a623;
  --radius:10px; --maxw:1140px;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Hiragino Kaku Gothic ProN",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);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(246,249,252,.95);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:12px}
.mark{font-family:var(--mono);font-weight:700;font-size:1.25rem;color:#fff;background:var(--blue);padding:5px 11px;border-radius:6px;letter-spacing:.02em;line-height:1}
.mark.sm{font-size:.95rem;padding:4px 9px}
.logo .subj{font-size:.82rem;color:var(--mut);font-weight:600;letter-spacing:.02em}
nav.main{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
nav.main a{font-size:.9rem;font-weight:600;color:var(--mut);padding:8px 12px;border-radius:6px}
nav.main a:hover{color:var(--ink);background:var(--panel2)}
nav.main a.active{color:var(--blue);background:#e3f0ff}
nav.main a.btn{background:var(--blue);color:#fff;padding:9px 16px;border-radius:6px}
nav.main a.btn:hover{background:var(--blue2)}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.5rem;cursor:pointer}

.btn{display:inline-block;background:var(--blue);color:#fff;font-weight:700;padding:13px 26px;border-radius:6px;font-size:.95rem;transition:.2s}
.btn:hover{background:var(--blue2)}
.btn.big{font-size:1.05rem;padding:15px 30px}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--line)}
.btn.ghost:hover{border-color:var(--blue);background:#f0f7ff}
.link{color:var(--blue);font-weight:600}
.link:hover{text-decoration:underline}

.hero{padding:92px 0 84px;background:
  linear-gradient(rgba(10,125,255,.05),rgba(10,125,255,.05)),
  repeating-linear-gradient(0deg,transparent,transparent 24px,rgba(10,125,255,.06) 24px,rgba(10,125,255,.06) 25px),
  var(--bg);
  border-bottom:1px solid var(--line);position:relative}
.hero .wrap{position:relative;z-index:1}
.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;color:var(--blue);font-weight:700;margin-bottom:18px}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.4rem);line-height:1.22;font-weight:800}
.hero h1 .accent{color:var(--blue)}
.hero .sub{max-width:720px;margin-top:20px;color:var(--mut);font-size:1.05rem}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero::after{content:"";position:absolute;right:0;top:0;bottom:0;width:120px;background:linear-gradient(90deg,transparent,rgba(10,125,255,.07));pointer-events:none}

.blk{padding:62px 0;border-bottom:1px solid var(--line)}
.blk.alt{background:var(--panel2)}
.blk.cta-band{background:#0b1c33;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(--panel);border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:var(--radius);padding:26px;transition:.2s;display:block}
a.card:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(16,38,61,.1)}
.card h3{font-size:1.15rem;margin-bottom:10px;font-weight:800}
.card p{color:var(--mut);font-size:.95rem}
.card.mini{border-top-width:3px}
.card.mini h3{font-size:1.02rem}
.more{color:var(--blue);font-weight:700;display:inline-block;margin-top:14px;font-size:.92rem;font-family:var(--mono)}

.pagehead{padding:70px 0 54px;background:linear-gradient(135deg,#eaf2fc,var(--bg));border-bottom:1px solid var(--line)}
.pagehead .kicker{font-family:var(--mono)}
.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(--panel);border:1px solid var(--line);border-radius:8px;padding:18px 20px}
.step>span{flex:0 0 34px;height:34px;border-radius:6px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-family:var(--mono)}
.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(--panel);border:1px solid var(--line);border-radius:8px;padding:16px 20px}
.faqlist summary{cursor:pointer;font-weight:700}
.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;color:#fff}
.cta-band p{color:#a9c2dd;margin-bottom:24px}
.cta-band .btn{background:#fff;color:var(--blue)}
.cta-band .btn:hover{background:#e6f0ff}

footer.site{background:#0a1730;color:#fff;padding:44px 0}
.ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft p{color:#8ea8c4;font-size:.85rem;max-width:380px;margin-top:10px}
.ft nav{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.ft nav a{color:#b6cbe1;font-size:.9rem}
.ft nav a:hover{color:#fff}
.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:#fff;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:6px}
  .hero{padding:60px 0 56px}
  .g3,.g2{grid-template-columns:1fr}
  .blk{padding:46px 0}
  .ft{flex-direction:column}
  .ft nav{align-items:flex-start}
}