:root{
  --navy:#16243f;
  --navy-deep:#0f1a2e;
  --accent:#c8a35a;
  --accent-soft:#e7d6ad;
  --ink:#1d2330;
  --muted:#5d6675;
  --line:#e6e8ee;
  --bg:#ffffff;
  --bg-soft:#f6f7fa;
  --maxw:1080px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans JP",system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.85;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
.container{width:90%;max-width:var(--maxw);margin:0 auto}
a{color:inherit;text-decoration:none}

h1,h2,h3,.logo,.footer-logo{font-family:"Zen Kaku Gothic New","Noto Sans JP",sans-serif}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-weight:900;font-size:22px;color:var(--navy);letter-spacing:.04em;display:flex;align-items:baseline;gap:10px}
.logo span{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-size:14px;color:var(--muted);font-weight:500;transition:color .2s}
.nav a:hover{color:var(--navy)}
.nav-cta{
  background:var(--navy);color:#fff!important;
  padding:9px 18px;border-radius:999px;
}
.nav-cta:hover{background:var(--navy-deep)}

/* Hero */
.hero{
  background:
    url('images/hero-bg.svg') center right / cover no-repeat,
    radial-gradient(1200px 500px at 80% -10%,rgba(200,163,90,.18),transparent 60%),
    linear-gradient(160deg,var(--navy) 0%,var(--navy-deep) 100%);
  color:#fff;padding:120px 0 130px;position:relative;overflow:hidden;
}
.hero-eyebrow{color:var(--accent-soft);letter-spacing:.3em;font-size:13px;font-weight:700;margin-bottom:22px;display:inline-flex;align-items:center;gap:14px}
.hero-eyebrow::before{content:"";width:34px;height:2px;background:var(--accent);display:inline-block}
.hero-title{font-size:clamp(34px,6vw,60px);font-weight:900;line-height:1.25;letter-spacing:.01em}
.hero-lead{margin-top:26px;font-size:clamp(15px,2.2vw,18px);color:#d7deea;font-weight:400;max-width:640px}
.hero-actions{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}

.btn{
  display:inline-block;padding:14px 30px;border-radius:999px;
  font-weight:700;font-size:15px;transition:transform .15s,background .2s,box-shadow .2s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#1d160a;box-shadow:0 8px 24px rgba(200,163,90,.32)}
.btn-primary:hover{background:#d6b46c}
.btn-ghost{border:1.5px solid rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-lg{padding:17px 44px;font-size:16px}

/* Sections */
.section{padding:96px 0}
.section-alt{background:var(--bg-soft)}
.section-eyebrow{color:var(--accent);letter-spacing:.25em;font-size:12px;font-weight:700;margin-bottom:10px}
.section-title{font-size:clamp(26px,4vw,36px);font-weight:900;color:var(--navy);letter-spacing:.02em}
.section-title::after{content:"";display:block;width:48px;height:3px;background:var(--accent);border-radius:2px;margin-top:18px}
.section-desc{margin-top:14px;color:var(--muted)}

/* Cards */
.cards{margin-top:44px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px 28px;
  position:relative;transition:transform .2s,box-shadow .2s,border-color .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(22,36,63,.1);border-color:var(--accent-soft)}
.card-num{font-family:"Zen Kaku Gothic New",sans-serif;font-size:14px;font-weight:900;color:var(--accent);letter-spacing:.1em}
.card h3{margin:12px 0 12px;font-size:20px;color:var(--navy);line-height:1.5}
.card h3 small{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:4px;letter-spacing:.06em}
.card p{font-size:14.5px;color:var(--muted)}

/* Strengths */
.strengths{margin-top:44px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}
.strength{border-top:3px solid var(--accent);padding-top:20px}
.strength h3{font-size:19px;color:var(--navy);margin-bottom:10px}
.strength p{font-size:14.5px;color:var(--muted)}

/* Concept: Input / Process / Output */
.ipo-flow{margin-top:48px;display:flex;align-items:stretch;justify-content:center;gap:16px;flex-wrap:wrap}
.ipo-step{flex:1;min-width:220px;max-width:300px;background:var(--bg-soft);border-radius:16px;padding:32px 26px;text-align:center;border-top:3px solid var(--accent)}
.ipo-letter{display:inline-flex;align-items:center;justify-content:center;width:62px;height:62px;border-radius:50%;background:var(--navy);color:var(--accent);font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;font-size:30px;margin-bottom:14px}
.ipo-en{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;color:var(--navy);letter-spacing:.14em;font-size:15px}
.ipo-step h3{font-size:21px;color:var(--navy);margin:4px 0 12px}
.ipo-desc{font-size:14px;color:var(--muted);text-align:left}
.ipo-arrow{display:flex;align-items:center;color:var(--accent);font-size:26px;font-weight:700}
@media(max-width:760px){.ipo-arrow{transform:rotate(90deg);justify-content:center}}

.concept-detail{margin:40px auto 0;max-width:820px}
.concept-detail-title{font-size:19px;color:var(--navy);margin-bottom:16px;text-align:center}
.concept-detail-title::after{content:"";display:block;width:40px;height:3px;background:var(--accent);border-radius:2px;margin:14px auto 0}
.concept-detail p{font-size:15px;color:var(--muted);margin-bottom:16px}
.concept-refs{font-size:12.5px;color:var(--muted)}
.concept-refs a{color:var(--navy);text-decoration:underline}

/* The IPO Method panel */
.method-panel{margin-top:56px;background:linear-gradient(160deg,var(--navy),var(--navy-deep));border-radius:20px;padding:48px 44px;color:#fff}
.method-eyebrow{color:var(--accent);letter-spacing:.22em;font-size:12px;font-weight:700;margin-bottom:10px}
.method-panel h3{font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(22px,3.4vw,30px);font-weight:900;letter-spacing:.02em}
.method-intro{margin-top:14px;color:#cfd8e6;max-width:700px;font-size:15px}
.method-steps{list-style:none;margin:34px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.method-steps li{border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:22px 20px;background:rgba(255,255,255,.04)}
.method-steps span{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;color:var(--accent);font-size:20px}
.method-steps h4{font-size:17px;margin:8px 0 8px;color:#fff}
.method-steps li p{font-size:13.5px;color:#bcc6d6}
.method-benefits{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.method-benefits li{border:1px solid rgba(231,214,173,.5);color:var(--accent-soft);font-size:13px;font-weight:500;padding:8px 16px;border-radius:999px}
.method-strength{margin-top:26px;background:rgba(200,163,90,.1);border:1px solid rgba(231,214,173,.35);border-radius:14px;padding:24px}
.method-strength h4{color:var(--accent-soft);font-size:17px;margin-bottom:10px}
.method-strength p{color:#cfd8e6;font-size:14px}
.method-note{margin-top:26px;font-size:13.5px;color:#aab6c8;border-left:3px solid var(--accent);padding-left:16px;max-width:760px}
@media(max-width:640px){.method-panel{padding:34px 22px}}

/* Phases band */
.phases{background:var(--navy);color:#fff;padding:56px 0}
.phases-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.phases-lead{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:clamp(18px,2.6vw,24px);line-height:1.6}
.phase-chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.phase-chips li{
  border:1px solid rgba(231,214,173,.5);color:var(--accent-soft);
  font-size:13px;font-weight:500;padding:8px 16px;border-radius:999px;white-space:nowrap;
}

/* Process steps */
.steps{margin-top:44px;list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:none}
.step{position:relative;padding:28px 24px;background:var(--bg-soft);border-radius:16px}
.step-num{font-family:"Zen Kaku Gothic New",sans-serif;font-size:26px;font-weight:900;color:var(--accent);line-height:1}
.step h3{margin:12px 0 10px;font-size:18px;color:var(--navy)}
.step p{font-size:14px;color:var(--muted)}

/* CEO / Profile */
.ceo-inner{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.ceo-body p{margin-bottom:18px;font-size:16px}
.profile{display:flex;gap:22px;align-items:center;margin-top:28px;padding-top:28px;border-top:1px solid var(--line)}
.profile-photo{
  width:76px;height:76px;flex:0 0 76px;border-radius:50%;
  background:var(--navy);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;font-size:12px;line-height:1.3;text-align:center;
}
.profile-name{font-weight:700;color:var(--navy);font-size:18px}
.profile-name span{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:4px}
.profile-career{margin-top:12px;padding-left:18px;color:var(--muted);font-size:14px}
.profile-career li{margin-bottom:4px}

/* Company table */
.company-table{margin-top:40px;border-top:1px solid var(--line)}
.company-row{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:18px 4px;border-bottom:1px solid var(--line)}
.company-row dt{font-weight:700;color:var(--navy);font-size:15px}
.company-row dd{color:var(--muted);font-size:15px}
@media(max-width:560px){
  .company-row{grid-template-columns:1fr;gap:4px}
}

/* Contact form */
.cta-eyebrow{color:var(--accent-soft)}
.cta-sub{max-width:560px;margin:14px auto 0}
.contact-form{max-width:560px;margin:34px auto 0;text-align:left}
.contact-form .field{margin-bottom:18px}
.contact-form label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:#eef2f8}
.contact-form .req{display:inline-block;font-size:11px;font-weight:700;color:#1d160a;background:var(--accent);border-radius:4px;padding:1px 7px;margin-left:6px;vertical-align:middle}
.contact-form input,.contact-form textarea{
  width:100%;padding:13px 15px;border-radius:10px;border:1px solid transparent;
  background:#fff;color:var(--ink);font:inherit;
}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,163,90,.3)}
.contact-form textarea{resize:vertical}
.contact-form .btn{margin-top:8px;width:100%}
.form-status{margin-top:14px;font-size:14px;min-height:1.2em}
.form-status.is-ok{color:var(--accent-soft)}
.form-status.is-error{color:#f3b4b4}

/* CTA */
.cta{
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-deep) 100%);
  color:#fff;padding:90px 0;text-align:center;
}
.cta h2{font-size:clamp(24px,4vw,34px);font-weight:900;letter-spacing:.02em}
.cta p{margin-top:16px;color:#d7deea}
.cta .btn{margin-top:34px}
.cta-note{margin-top:18px;font-size:12px;color:#9fabbf}

/* Footer */
.site-footer{background:var(--navy-deep);color:#c7cfdc;padding:46px 0}
.footer-inner{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px}
.footer-logo{font-size:18px;font-weight:900;color:#fff}
.footer-tagline{font-size:13px;color:#9fabbf;margin-top:6px}
.footer-address{font-size:12px;color:#7f8aa0;margin-top:10px}
.footer-copy{font-size:13px;color:#9fabbf}

@media(max-width:720px){
  .nav{gap:14px}
  .nav a:not(.nav-cta){display:none}
  .hero{padding:84px 0 90px}
  .section{padding:70px 0}
  .ceo-inner{grid-template-columns:1fr;gap:18px}
}