:root{
  --navy:#143063;        /* primary */
  --navy-2:#0f2750;
  --blue:#3f8ed6;        /* accent (Sola light blue) */
  --blue-soft:#eaf2fb;
  --ink:#1b2330;
  --muted:#5a6577;
  --line:#e3e8ef;
  --bg-soft:#f5f8fc;
  --white:#fff;
  --radius:14px;
  --shadow:0 8px 30px rgba(20,48,99,.08);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  color:var(--ink);line-height:1.8;background:var(--white);-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.btn{
  display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  background:var(--navy);color:#fff;font-weight:700;padding:15px 30px;border-radius:999px;
  transition:.2s;box-shadow:0 6px 18px rgba(20,48,99,.25);font-size:1rem;border:none;cursor:pointer;
}
.btn:hover{background:var(--navy-2);transform:translateY(-1px)}
.btn-lg{padding:18px 44px;font-size:1.08rem}
.btn-ghost{background:#fff;color:var(--navy);border:2px solid var(--navy);box-shadow:none}
.btn-ghost:hover{background:var(--blue-soft)}
.eyebrow{color:var(--blue);font-weight:700;letter-spacing:.06em;font-size:.86rem;margin:0 0 10px}
h2.sec{font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:800;line-height:1.45;margin:0 0 14px;letter-spacing:.01em}
.lead{color:var(--muted);font-size:1.02rem;max-width:none}
section{padding:74px 0}
.soft{background:var(--bg-soft)}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hrow{display:flex;align-items:center;justify-content:space-between;height:66px}
.hlogo{height:30px}
.hnav{display:flex;gap:26px;align-items:center;font-size:.92rem;font-weight:500}
.hnav a:hover{color:var(--blue)}
.hcta{display:flex;gap:12px;align-items:center}
.hcta .btn{padding:11px 22px;font-size:.92rem;box-shadow:none}
@media(max-width:900px){.hnav{display:none}.hcta .btn-ghost{display:none}}

/* Hero */
.hero{
  background:radial-gradient(1100px 480px at 78% -10%,rgba(63,142,214,.20),transparent 60%),
             linear-gradient(180deg,#fff 0%,var(--blue-soft) 100%);
  padding:74px 0 64px;
}
.hero-grid{display:grid;grid-template-columns:1.2fr .85fr;gap:48px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:30px}}
.hero h1{font-size:clamp(1.85rem,3.6vw,2.55rem);line-height:1.36;font-weight:900;letter-spacing:.01em;margin:0 0 20px}
.hero h1 .hl{color:var(--navy);position:relative;white-space:nowrap}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.34em;background:rgba(63,142,214,.28);z-index:-1;border-radius:3px}
.hero p.sub{font-size:1.08rem;color:#33405a;max-width:none;margin:0 0 28px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .note{margin:18px 0 0;color:var(--muted);font-size:.9rem}

/* hero right-side panel */
.hero-aside{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px;box-shadow:var(--shadow)}
.hero-aside .aside-t{font-weight:800;color:var(--navy);margin:0 0 16px;font-size:1.04rem;display:flex;align-items:center;gap:8px}
.hero-aside .aside-t::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--blue)}
.hero-aside ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.hero-aside li{border-left:3px solid var(--blue);padding-left:14px}
.hero-aside li b{display:block;color:var(--navy);font-size:.98rem;margin-bottom:1px}
.hero-aside li span{color:var(--muted);font-size:.9rem;line-height:1.62}
@media(max-width:900px){.hero-aside{order:3}}

.trust-row{margin-top:36px;display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;color:var(--muted);font-size:.9rem}
.trust-row b{color:var(--ink)}

/* generic cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{font-size:1.12rem;margin:0 0 8px;font-weight:700}
.card p{margin:0;color:var(--muted);font-size:.96rem}
.num{display:inline-flex;width:34px;height:34px;border-radius:9px;background:var(--blue-soft);color:var(--navy);font-weight:800;align-items:center;justify-content:center;margin-bottom:12px}

/* strengths */
.str{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:820px){.str{grid-template-columns:1fr}}
.str .card{border-top:4px solid var(--blue)}
.str .k{color:var(--blue);font-weight:800;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}

/* services */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:820px){.svc{grid-template-columns:1fr}}
.svc .card{display:flex;gap:16px}
.svc .ic{flex:0 0 44px;height:44px;border-radius:11px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}

/* AI banner */
.aiband{background:linear-gradient(120deg,var(--navy),#1d4488);color:#fff;border-radius:20px;padding:42px;box-shadow:var(--shadow)}
.aiband h2{color:#fff}
.aiband .lead{color:#d4e2f4}
.aiband .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.aiband .tags span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:8px 16px;border-radius:999px;font-size:.9rem;font-weight:600}

/* trust band (facts, no logos) */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
@media(max-width:820px){.facts{grid-template-columns:1fr}}
.fact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
.fact .ft{color:var(--blue);font-weight:800;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.fact h3{margin:0 0 6px;font-size:1.06rem}
.fact p{margin:0;color:var(--muted);font-size:.94rem}

/* cases */
.case{border-left:4px solid var(--blue);background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:12px;padding:24px}
.case .tag{display:inline-block;background:var(--blue-soft);color:var(--navy);font-weight:700;font-size:.78rem;padding:4px 12px;border-radius:999px;margin-bottom:10px}
.case h3{margin:.1em 0 .4em;font-size:1.06rem}
.case p{margin:0;color:var(--muted);font-size:.94rem}
.case .ans{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);color:var(--ink);font-size:.94rem}
.case .ans b{color:var(--navy)}

/* flow */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
@media(max-width:820px){.flow{grid-template-columns:1fr 1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;text-align:center}
.step .s{display:inline-flex;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px}
.step b{display:block;font-size:1rem}
.step small{color:var(--muted)}

/* routing (案件規模・進め方) */
.routes{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}
@media(max-width:820px){.routes{grid-template-columns:1fr}}
.route{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.route.lead-route{border-top:4px solid var(--navy)}
.route .rk{font-weight:800;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}
.route h3{margin:0 0 6px;font-size:1.2rem}
.route>p{margin:0 0 16px;color:var(--muted);font-size:.95rem}
.route ul{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.route li{position:relative;padding-left:18px;font-size:.95rem}
.route li::before{content:"›";position:absolute;left:0;top:0;color:var(--blue);font-weight:800}
.route li .nm{font-weight:700;color:var(--navy)}
.route li a.nm{text-decoration:none}
.route li a.nm:hover{color:var(--blue);text-decoration:underline}
.route li .ds{display:block;color:var(--muted);font-size:.9rem;line-height:1.55;margin-top:1px}
.price-note{margin-top:18px;color:var(--muted);font-size:.88rem}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";color:var(--blue);font-weight:800;transition:.2s}
.faq details[open] summary::after{content:"－"}
.faq .a{padding:0 22px 20px;color:var(--muted)}

/* final cta */
.final{background:linear-gradient(120deg,var(--navy),#173a78);color:#fff;text-align:center;border-radius:24px;padding:56px 28px;box-shadow:var(--shadow)}
.final h2{color:#fff;font-size:clamp(1.6rem,4vw,2.2rem);margin:0 0 12px}
.final p{color:#d4e2f4;max-width:640px;margin:0 auto 26px}
.final .btn-ghost{background:#fff;border-color:#fff;color:var(--navy)}

footer{background:#0e1f3d;color:#aebbd0;padding:40px 0;font-size:.88rem}
footer .frow{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;align-items:center}
footer a:hover{color:#fff}

/* sticky mobile cta */
.mcta{position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-top:1px solid var(--line);padding:10px 16px;display:none}
.mcta .btn{width:100%}
@media(max-width:900px){.mcta{display:block}body{padding-bottom:74px}}