:root {
  --ink: #0e2238;
  --ink-soft: #45596d;
  --blue: #265f91;
  --blue-bright: #4b86b4;
  --blue-pale: #dbe8f1;
  --ivory: #f7f4ed;
  --paper: #fffdf8;
  --line: rgba(14, 34, 56, .14);
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(14,34,56,.10);
  --radius: 24px;
  --container: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.9;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }

.container { width: var(--container); margin-inline: auto; }
.section { padding: 112px 0; position: relative; }
.section-sm { padding: 76px 0; }
.section-ivory { background: var(--ivory); }
.section-blue { background: var(--ink); color: var(--white); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 18px; color: var(--blue); font-size: 12px;
  font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.section-blue .eyebrow { color: #a9cce5; }
.section-title {
  margin: 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-weight: 500; font-size: clamp(34px, 4.5vw, 60px); line-height: 1.35;
  letter-spacing: .02em;
}
.section-lead { max-width: 740px; margin: 24px 0 0; color: var(--ink-soft); font-size: 17px; }
.section-blue .section-lead { color: rgba(255,255,255,.74); }
.small-note { color: var(--ink-soft); font-size: 12px; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 1000;
  border-bottom: 1px solid transparent; transition: .3s ease;
}
.site-header.scrolled { background: rgba(255,253,248,.92); backdrop-filter: blur(14px); border-color: var(--line); }
.header-inner { width: var(--container); height: 86px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; }
.logo { display:inline-flex; align-items:center; flex:none; }
.logo img { display:block; width:190px; height:auto; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 600; }
.nav a { position: relative; }
.nav a:not(.nav-cta)::after { content:""; position:absolute; left:0; bottom:-8px; width:0; height:1px; background:var(--blue); transition:.25s; }
.nav a:hover::after, .nav a[aria-current="page"]::after { width:100%; }
.nav-cta { padding: 12px 20px; border: 1px solid var(--ink); border-radius: 999px; transition: .25s; }
.nav-cta:hover { background: var(--ink); color: var(--white); }
.menu-toggle { display:none; border:0; background:transparent; width:44px; height:44px; padding:10px; cursor:pointer; }
.menu-toggle span { display:block; height:1px; background:var(--ink); margin:6px 0; transition:.25s; }

.hero { min-height: 820px; padding: 160px 0 86px; display:flex; align-items:center; overflow:hidden; background:
  linear-gradient(90deg, rgba(247,244,237,.96), rgba(255,253,248,.88)),
  repeating-linear-gradient(90deg, transparent 0 119px, rgba(14,34,56,.035) 120px),
  repeating-linear-gradient(0deg, transparent 0 119px, rgba(14,34,56,.035) 120px);
}
.hero::after { content:""; position:absolute; right:-160px; top:40px; width:720px; height:720px; border-radius:50%; background:radial-gradient(circle, rgba(75,134,180,.18), rgba(75,134,180,0) 67%); }
.hero-grid { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr); gap:56px; align-items:center; position:relative; z-index:1; }
.hero-grid > * { min-width:0; }
.hero-kicker { color:var(--blue); font-size:12px; font-weight:700; letter-spacing:.18em; text-transform:uppercase; margin-bottom:18px; }
.hero h1 { margin:0; font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-weight:500; font-size:clamp(46px,4.9vw,70px); line-height:1.22; letter-spacing:.01em; }
.hero h1 .accent { color:var(--blue); position:relative; white-space:nowrap; }
.hero h1 .accent::after { content:""; position:absolute; left:0; right:0; bottom:4px; height:9px; background:rgba(75,134,180,.16); z-index:-1; }
.hero-copy { max-width:640px; margin:28px 0 0; color:var(--ink-soft); font-size:17px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:14px; margin-top:38px; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:12px; min-height:54px; padding:0 25px; border-radius:999px; border:1px solid var(--ink); font-size:14px; font-weight:700; transition:.25s ease; }
.btn-primary { background:var(--ink); color:var(--white); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 12px 30px rgba(14,34,56,.18); }
.btn-secondary { background:rgba(255,255,255,.45); }
.btn-secondary:hover { background:var(--white); }
.btn-light { background:var(--white); color:var(--ink); border-color:var(--white); }
.btn-arrow::after { content:"→"; font-size:18px; }
.hero-note { margin-top:22px; font-size:12px; color:var(--ink-soft); }

.orbit { width:min(100%,510px); aspect-ratio:1; position:relative; max-width:510px; margin-inline:auto; }
.orbit-ring { position:absolute; border:1px solid rgba(38,95,145,.25); border-radius:50%; inset:10%; animation: spin 32s linear infinite; }
.orbit-ring:nth-child(2) { inset:22%; animation-direction:reverse; animation-duration:22s; }
.orbit-ring::before { content:""; position:absolute; width:12px; height:12px; border-radius:50%; background:var(--blue); top:12%; left:8%; box-shadow:0 0 0 8px rgba(38,95,145,.08); }
.orbit-center { position:absolute; inset:33%; border-radius:50%; background:var(--ink); color:white; display:grid; place-items:center; text-align:center; box-shadow:var(--shadow); font-family:"Yu Mincho",serif; line-height:1.55; }
.orbit-label { position:absolute; width:max-content; max-width:none; white-space:nowrap; writing-mode:horizontal-tb; padding:13px 18px; background:rgba(255,255,255,.92); border:1px solid var(--line); border-radius:999px; box-shadow:0 12px 32px rgba(14,34,56,.08); font-size:13px; line-height:1.4; font-weight:700; backdrop-filter:blur(8px); }
.orbit-label.one { top:5%; left:50%; transform:translateX(-50%); }
.orbit-label.two { right:-2%; top:53%; }
.orbit-label.three { bottom:4%; left:9%; }
@keyframes spin { to { transform:rotate(360deg); } }

.problem-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:14px; margin-top:54px; }
.problem-card { min-height:190px; padding:28px 22px; background:var(--white); border:1px solid var(--line); border-radius:20px; transition:.25s; }
.problem-card:hover { transform:translateY(-4px); box-shadow:var(--shadow); }
.problem-number { color:var(--blue); font-size:11px; font-weight:700; letter-spacing:.14em; }
.problem-card p { margin:38px 0 0; font-weight:700; line-height:1.7; }

.cycle-layout { display:grid; grid-template-columns:.8fr 1.2fr; gap:80px; align-items:center; margin-top:40px; }
.cycle-visual { position:relative; aspect-ratio:1; }
.cycle-visual::before { content:""; position:absolute; inset:6%; border:1px solid rgba(255,255,255,.2); border-radius:50%; }
.cycle-center { position:absolute; inset:31%; border-radius:50%; background:white; color:var(--ink); display:grid; place-items:center; text-align:center; font-family:"Yu Mincho",serif; font-size:20px; line-height:1.5; }
.cycle-node { position:absolute; width:132px; height:132px; border-radius:50%; display:grid; place-items:center; text-align:center; border:1px solid rgba(255,255,255,.28); background:rgba(255,255,255,.06); font-weight:700; font-size:13px; }
.cycle-node.n1 { top:0; left:50%; transform:translateX(-50%); }
.cycle-node.n2 { right:0; top:50%; transform:translateY(-50%); }
.cycle-node.n3 { bottom:0; left:50%; transform:translateX(-50%); }
.cycle-node.n4 { left:0; top:50%; transform:translateY(-50%); }
.cycle-list { display:grid; gap:10px; }
.cycle-item { display:grid; grid-template-columns:52px 1fr; gap:18px; padding:22px 0; border-bottom:1px solid rgba(255,255,255,.16); }
.cycle-item b { color:#a9cce5; font-family:Georgia,serif; font-size:18px; }
.cycle-item h3 { margin:0 0 5px; font-size:18px; }
.cycle-item p { margin:0; color:rgba(255,255,255,.7); font-size:14px; }

.services-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:54px; }
.service-card { position:relative; min-height:430px; padding:34px; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--white); transition:.28s ease; }
.service-card:hover { transform:translateY(-6px); box-shadow:var(--shadow); }
.service-card::after { content:""; position:absolute; width:190px; height:190px; right:-70px; bottom:-70px; border:1px solid rgba(38,95,145,.18); border-radius:50%; box-shadow:0 0 0 28px rgba(38,95,145,.03), 0 0 0 58px rgba(38,95,145,.025); }
.service-index { font-family:Georgia,serif; color:var(--blue); font-size:13px; letter-spacing:.12em; }
.service-card h3 { margin:64px 0 18px; font-family:"Yu Mincho",serif; font-size:29px; font-weight:500; line-height:1.45; }
.service-card p { color:var(--ink-soft); font-size:14px; }
.card-link { position:absolute; left:34px; bottom:30px; display:inline-flex; gap:10px; align-items:center; font-size:13px; font-weight:700; color:var(--blue); z-index:1; }
.card-link::after { content:"→"; font-size:18px; }

.reason-grid { display:grid; grid-template-columns:1fr 1fr; gap:0; margin-top:54px; border-top:1px solid var(--line); border-left:1px solid var(--line); }
.reason { padding:38px; min-height:230px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
.reason h3 { margin:10px 0 12px; font-family:"Yu Mincho",serif; font-size:24px; font-weight:500; }
.reason p { margin:0; color:var(--ink-soft); font-size:14px; }
.reason-icon { width:44px; height:44px; border-radius:50%; border:1px solid var(--blue); display:grid; place-items:center; color:var(--blue); font-family:Georgia,serif; }

.case-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:54px; }
.case-card { padding:30px; border-radius:20px; background:var(--white); border:1px solid var(--line); }
.case-tag { display:inline-flex; padding:7px 12px; border-radius:999px; background:var(--blue-pale); color:var(--blue); font-size:11px; font-weight:700; }
.case-card h3 { margin:22px 0 12px; font-size:19px; line-height:1.6; }
.case-card p { margin:0; color:var(--ink-soft); font-size:14px; }
.case-result { margin-top:26px; padding-top:20px; border-top:1px solid var(--line); font-size:13px; font-weight:700; color:var(--blue); }

.philosophy-head { display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:end; }
.philosophy-diagram { margin-top:58px; display:grid; grid-template-columns:1fr .88fr; gap:42px; align-items:center; }
.philosophy-core { min-height:430px; border-radius:50%; border:1px solid var(--line); display:grid; place-items:center; position:relative; background:radial-gradient(circle at center, white 0 39%, transparent 40%); }
.philosophy-core::before, .philosophy-core::after { content:""; position:absolute; border:1px solid rgba(38,95,145,.18); border-radius:50%; }
.philosophy-core::before { inset:12%; }
.philosophy-core::after { inset:24%; }
.philosophy-core-text { z-index:2; text-align:center; font-family:"Yu Mincho",serif; font-size:24px; line-height:1.6; }
.philosophy-cards { display:grid; gap:14px; }
.philosophy-card { padding:24px 26px; border:1px solid var(--line); border-radius:18px; background:rgba(255,255,255,.66); }
.philosophy-card small { color:var(--blue); font-weight:700; }
.philosophy-card h3 { margin:5px 0 8px; font-family:"Yu Mincho",serif; font-weight:500; font-size:22px; }
.philosophy-card p { margin:0; color:var(--ink-soft); font-size:13px; }

.stats { display:grid; grid-template-columns:repeat(3,1fr); margin-top:52px; border-top:1px solid rgba(255,255,255,.22); border-left:1px solid rgba(255,255,255,.22); }
.stat { padding:46px 34px; border-right:1px solid rgba(255,255,255,.22); border-bottom:1px solid rgba(255,255,255,.22); }
.stat strong { display:block; font-family:Georgia,serif; font-weight:400; font-size:clamp(52px,6vw,86px); line-height:1; }
.stat span { display:block; margin-top:14px; color:rgba(255,255,255,.72); font-size:13px; }

.company-band { display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:center; }
.company-table { border-top:1px solid var(--line); }
.company-row { display:grid; grid-template-columns:120px 1fr; gap:20px; padding:17px 0; border-bottom:1px solid var(--line); font-size:14px; }
.company-row dt { color:var(--ink-soft); }
.company-row dd { margin:0; }

.cta-box { padding:62px; border-radius:32px; background:var(--ink); color:white; display:flex; align-items:center; justify-content:space-between; gap:40px; overflow:hidden; position:relative; }
.cta-box::after { content:""; position:absolute; right:-100px; top:-130px; width:420px; height:420px; border:1px solid rgba(255,255,255,.13); border-radius:50%; box-shadow:0 0 0 46px rgba(255,255,255,.03), 0 0 0 92px rgba(255,255,255,.025); }
.cta-box h2 { margin:0; font-family:"Yu Mincho",serif; font-size:clamp(28px,4vw,46px); font-weight:500; line-height:1.45; position:relative; z-index:1; }
.cta-box p { color:rgba(255,255,255,.7); margin:15px 0 0; position:relative; z-index:1; }
.cta-box .btn { position:relative; z-index:1; flex:none; }

.site-footer { background:#091827; color:white; padding:72px 0 30px; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:70px; }
.footer-logo { width:max-content; padding:10px 14px; border-radius:14px; background:var(--paper); }
.footer-logo img { width:190px; }
.footer-description { color:rgba(255,255,255,.58); font-size:13px; max-width:400px; margin-top:22px; }
.footer-title { font-size:11px; text-transform:uppercase; letter-spacing:.16em; color:#9dc0da; margin-bottom:18px; }
.footer-links { display:grid; gap:10px; font-size:13px; color:rgba(255,255,255,.75); }
.footer-bottom { margin-top:58px; padding-top:24px; border-top:1px solid rgba(255,255,255,.12); display:flex; justify-content:space-between; gap:20px; font-size:11px; color:rgba(255,255,255,.45); }

/* lower pages */
.page-hero { padding:176px 0 92px; background:var(--ivory); border-bottom:1px solid var(--line); overflow:hidden; position:relative; }
.page-hero::after { content:""; position:absolute; width:560px; height:560px; right:-170px; top:-210px; border:1px solid rgba(38,95,145,.16); border-radius:50%; box-shadow:0 0 0 50px rgba(38,95,145,.035),0 0 0 100px rgba(38,95,145,.025); }
.breadcrumbs { font-size:11px; color:var(--ink-soft); margin-bottom:30px; }
.page-hero h1 { margin:0; font-family:"Yu Mincho",serif; font-weight:500; font-size:clamp(42px,6vw,74px); line-height:1.25; max-width:850px; }
.page-hero p { max-width:760px; margin:24px 0 0; color:var(--ink-soft); font-size:17px; }
.page-label { color:var(--blue); text-transform:uppercase; font-size:12px; font-weight:700; letter-spacing:.16em; margin-bottom:15px; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:start; }
.intro-title { font-family:"Yu Mincho",serif; font-size:clamp(30px,4vw,48px); font-weight:500; line-height:1.5; margin:0; }
.text-body { color:var(--ink-soft); }
.feature-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin-top:48px; }
.feature-card { padding:30px; border:1px solid var(--line); border-radius:20px; background:white; }
.feature-card .num { color:var(--blue); font-family:Georgia,serif; }
.feature-card h3 { margin:26px 0 10px; font-family:"Yu Mincho",serif; font-size:22px; font-weight:500; }
.feature-card p { margin:0; color:var(--ink-soft); font-size:14px; }
.process-list { margin-top:48px; border-top:1px solid var(--line); }
.process-step { display:grid; grid-template-columns:90px 1fr 130px; gap:30px; padding:28px 0; border-bottom:1px solid var(--line); align-items:center; }
.process-step strong { font-family:Georgia,serif; font-size:28px; font-weight:400; color:var(--blue); }
.process-step h3 { margin:0 0 5px; font-size:18px; }
.process-step p { margin:0; color:var(--ink-soft); font-size:13px; }
.process-step span { justify-self:end; color:var(--blue); font-size:12px; font-weight:700; }
.faq { margin-top:42px; border-top:1px solid var(--line); }
.faq-item { border-bottom:1px solid var(--line); }
.faq-question { width:100%; text-align:left; border:0; background:transparent; padding:24px 44px 24px 0; font-weight:700; cursor:pointer; position:relative; }
.faq-question::after { content:"＋"; position:absolute; right:0; top:24px; color:var(--blue); }
.faq-question[aria-expanded="true"]::after { content:"−"; }
.faq-answer { display:none; padding:0 45px 25px 0; color:var(--ink-soft); font-size:14px; }
.faq-answer.open { display:block; }

.form { display:grid; gap:22px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form label { display:grid; gap:8px; font-size:13px; font-weight:700; }
.form input, .form textarea, .form select { width:100%; border:1px solid var(--line); background:white; border-radius:12px; padding:14px 15px; outline:none; transition:.2s; }
.form input:focus, .form textarea:focus, .form select:focus { border-color:var(--blue); box-shadow:0 0 0 3px rgba(38,95,145,.10); }
.form textarea { min-height:180px; resize:vertical; }
.form-check { display:flex!important; grid-template-columns:auto 1fr; flex-direction:row; align-items:flex-start; gap:10px!important; font-weight:400!important; }
.form-check input { width:auto; margin-top:7px; }
.form-message { display:none; padding:15px; border-radius:10px; background:var(--blue-pale); color:var(--blue); font-size:13px; }
.form-message.show { display:block; }

.reveal { opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity:1; transform:none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { animation:none!important; transition:none!important; }
  .reveal { opacity:1; transform:none; }
}

@media (max-width: 980px) {
  :root { --container: min(100% - 36px, 760px); }
  .nav { position:fixed; inset:86px 0 0; background:var(--paper); padding:40px 24px; display:none; align-content:start; justify-content:start; flex-direction:column; align-items:stretch; gap:0; font-size:16px; }
  .nav.open { display:flex; }
  .nav a { padding:16px 0; border-bottom:1px solid var(--line); }
  .nav-cta { margin-top:20px; text-align:center; }
  .menu-toggle { display:block; }
  .hero { min-height:auto; padding-top:145px; }
  .hero-grid, .cycle-layout, .philosophy-head, .philosophy-diagram, .company-band, .split { grid-template-columns:1fr; }
  .hero-grid { gap:50px; }
  .orbit { max-width:470px; }
  .problem-grid { grid-template-columns:repeat(2,1fr); }
  .problem-card:last-child { grid-column:1/-1; }
  .services-grid, .case-grid { grid-template-columns:1fr; }
  .service-card { min-height:360px; }
  .reason-grid { grid-template-columns:1fr; }
  .stats { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .footer-grid > :first-child { grid-column:1/-1; }
}

@media (max-width: 640px) {
  :root { --container: calc(100% - 28px); --radius:20px; }
  body { line-height:1.82; }
  .section { padding:82px 0; }
  .header-inner { height:72px; }
  .site-header .nav { inset:72px 0 0; }
  .logo img { width:158px; }
  .hero { padding:124px 0 70px; }
  .hero h1 { font-size:clamp(43px,13vw,62px); }
  .hero-copy { font-size:15px; }
  .hero-actions { display:grid; }
  .btn { width:100%; }
  .orbit { width:min(100%, 330px); max-width:330px; overflow:visible; }
  .orbit-ring { inset:13%; }
  .orbit-ring:nth-child(2) { inset:25%; }
  .orbit-label { font-size:11px; padding:9px 12px; }
  .orbit-label.one { top:1%; }
  .orbit-label.two { right:0; top:51%; transform:translateY(-50%); }
  .orbit-label.three { bottom:2%; left:1%; }
  .orbit-center { inset:34%; font-size:12px; }
  .problem-grid { grid-template-columns:1fr; }
  .problem-card:last-child { grid-column:auto; }
  .cycle-layout { gap:48px; }
  .cycle-node { width:92px; height:92px; font-size:11px; }
  .cycle-center { inset:32%; font-size:14px; }
  .service-card { min-height:390px; padding:28px; }
  .card-link { left:28px; }
  .reason { padding:28px; }
  .case-grid { gap:14px; }
  .philosophy-core { min-height:330px; }
  .philosophy-core-text { font-size:19px; }
  .cta-box { padding:38px 26px; display:block; }
  .cta-box .btn { margin-top:28px; }
  .footer-grid { grid-template-columns:1fr; gap:36px; }
  .footer-grid > :first-child { grid-column:auto; }
  .footer-bottom { display:block; }
  .page-hero { padding:130px 0 70px; }
  .feature-grid, .form-row { grid-template-columns:1fr; }
  .process-step { grid-template-columns:52px 1fr; gap:18px; }
  .process-step span { grid-column:2; justify-self:start; }
  .company-row { grid-template-columns:1fr; gap:5px; }
}

/* Contact form: Google Apps Script relay */
.form-required { color:#b33a3a; font-size:11px; margin-left:6px; }
.form-errors { padding:18px 20px; border:1px solid #e6b7b7; background:#fff5f5; color:#8b2424; border-radius:12px; font-size:14px; line-height:1.8; }
.form-errors strong { display:block; margin-bottom:4px; }
.form-errors ul { margin:0; padding-left:1.3em; }
.form-help { font-size:12px; color:var(--muted); font-weight:400; line-height:1.7; }
.form-submit-note { margin:0; font-size:12px; color:var(--muted); line-height:1.7; }
.form button[disabled] { opacity:.65; cursor:wait; transform:none; }
.hp-field { position:absolute!important; left:-10000px!important; width:1px!important; height:1px!important; overflow:hidden!important; opacity:0!important; pointer-events:none!important; }

/* Contact form: Cloudflare Turnstile */
.turnstile-wrap { display:grid; gap:8px; max-width:100%; }
.turnstile-wrap .cf-turnstile { max-width:100%; }
.turnstile-status { margin:0; font-size:12px; color:var(--muted); line-height:1.7; }
@media (max-width: 340px) {
  .turnstile-wrap { margin-inline:-6px; }
}