:root{
  --bg:#ffffff; --fg:#1f2933; --muted:#6b7280; --line:#e5e7eb;
  --brand:#1d4ed8; --brand-dark:#1e3a8a; --accent:#0ea5e9;
  --cta:#f97316; --cta-dark:#ea580c; --soft:#f8fafc;
  --maxw:960px; --radius:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--fg); background:var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;
  line-height:1.8; font-size:16px;
}
a{color:var(--brand)}
img{max-width:100%;height:auto}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:700;font-size:18px;color:var(--brand-dark);text-decoration:none}
.nav a{margin-left:18px;text-decoration:none;color:var(--fg);font-size:14px}
@media(max-width:600px){.nav a{margin-left:12px;font-size:13px}}

/* hero */
.hero{background:linear-gradient(135deg,#eff6ff,#f0f9ff);padding:56px 0}
.hero h1{font-size:30px;line-height:1.5;margin:0 0 16px}
.hero p{font-size:17px;color:var(--muted);margin:0 0 24px}
@media(max-width:600px){.hero{padding:36px 0}.hero h1{font-size:23px}}

/* pr disclosure */
.pr-disclosure{
  background:var(--soft);border:1px solid var(--line);border-radius:8px;
  padding:12px 16px;font-size:13px;color:var(--muted);margin:20px 0
}

/* sections */
section{padding:40px 0}
h2{font-size:24px;border-left:5px solid var(--brand);padding-left:12px;margin:0 0 20px}
h3{font-size:19px;margin:28px 0 10px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:760px){.cards{grid-template-columns:1fr}}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;display:flex;flex-direction:column}
.card h3{margin-top:0}
.card .tag{display:inline-block;font-size:12px;color:#fff;background:var(--brand);border-radius:999px;padding:2px 10px;margin-bottom:8px;align-self:flex-start}
.card p{flex:1;color:var(--muted);font-size:14px}

/* table */
table{width:100%;border-collapse:collapse;margin:16px 0}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;font-size:14px}
th{background:var(--soft)}

/* CTA */
.cta{
  display:inline-block;background:var(--cta);color:#fff !important;text-decoration:none;
  font-weight:700;padding:14px 26px;border-radius:999px;margin:8px 0;
  box-shadow:0 4px 12px rgba(249,115,22,.3);transition:background .15s
}
.cta:hover{background:var(--cta-dark)}
.cta-secondary{background:var(--brand)}
.cta-secondary:hover{background:var(--brand-dark)}
.cta-block{text-align:center;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:32px 0}
@media(max-width:600px){.cta{display:block;width:100%;text-align:center}}

/* faq */
.faq dt{font-weight:700;margin-top:16px}
.faq dd{margin:6px 0 0;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--soft);padding:30px 0;margin-top:40px;font-size:13px;color:var(--muted)}
.site-footer a{color:var(--muted)}

.lead{font-size:17px}
.muted{color:var(--muted)}
.breadcrumb{font-size:13px;color:var(--muted);padding:14px 0}
.breadcrumb a{color:var(--muted)}
ul.clean{padding-left:20px}
ul.clean li{margin:6px 0}

/* ===== conversion components (v2) ===== */
/* before / after */
.ba{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;margin:20px 0}
@media(max-width:600px){.ba{grid-template-columns:1fr;gap:10px}}
.bubble{border-radius:14px;padding:14px 16px;font-size:15px;line-height:1.7}
.bubble.before{background:#f1f5f9;color:#475569;border:1px dashed #cbd5e1}
.bubble.after{background:#eff6ff;color:#0f2a5e;border:1px solid #bfdbfe;font-weight:600}
.bubble .tag{display:inline-block;font-size:11px;font-weight:700;border-radius:999px;padding:2px 10px;margin-bottom:8px}
.bubble.before .tag{background:#e2e8f0;color:#64748b}
.bubble.after .tag{background:var(--brand);color:#fff}
.ba .arrow{color:var(--brand);font-weight:900;font-size:22px;text-align:center}
@media(max-width:600px){.ba .arrow{transform:rotate(90deg)}}

/* metric chips */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}
@media(max-width:600px){.metrics{grid-template-columns:1fr}}
.metric{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.metric .num{font-size:26px;font-weight:800;color:var(--brand-dark);line-height:1.2}
.metric .lbl{font-size:13px;color:var(--muted);margin-top:6px}

/* steps */
.steps{counter-reset:s;display:grid;gap:12px;margin:18px 0;padding:0;list-style:none}
.steps li{position:relative;padding:14px 16px 14px 54px;background:#fff;border:1px solid var(--line);border-radius:12px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}

/* use-case icon grid */
.usecases{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:18px 0;text-align:center}
@media(max-width:600px){.usecases{grid-template-columns:repeat(2,1fr)}}
.uc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 8px;font-size:13px;color:var(--fg)}
.uc svg{width:28px;height:28px;display:block;margin:0 auto 8px;color:var(--brand)}

/* trust bar */
.trustbar{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.trustbar span{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600}

/* sticky mobile CTA */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:50;background:rgba(255,255,255,.96);border-top:1px solid var(--line);padding:10px 14px;display:none;box-shadow:0 -4px 14px rgba(0,0,0,.08)}
.mobile-cta a{display:block;text-align:center;background:var(--cta);color:#fff;font-weight:700;padding:13px;border-radius:999px;text-decoration:none}
.mobile-cta a:active{background:var(--cta-dark)}
@media(max-width:760px){.mobile-cta{display:block} body{padding-bottom:72px}}