:root {
  --navy: #14213d;
  --navy-2: #1f3158;
  --ink: #1d2433;
  --muted: #5a6478;
  --line: #e3e6ec;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --accent: #e07b24;
  --accent-dark: #b95f12;
  --green: #5f8f3a;
  --radius: 14px;
  --max: 1120px;
  --font: "Inter", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Source Serif 4", "Noto Serif JP", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
html[lang="ja"] body { line-height: 1.9; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: var(--navy-2); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.skip { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: 8px 14px; z-index: 100; }
.skip:focus { left: 12px; top: 12px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); font-weight: 700; font-size: 18px; letter-spacing: 0.01em; }
.brand svg { width: 32px; height: 32px; flex: none; }
.brand small { display: block; font-weight: 500; font-size: 11px; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { text-decoration: none; color: var(--ink); font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--accent-dark); }
.lang-switch { border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 14px !important; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 15px;
  padding: 12px 22px; border-radius: 999px; border: 2px solid transparent; cursor: pointer;
  font-family: inherit; line-height: 1.2;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.6); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); }
.nav .btn { color: #fff; padding: 9px 18px; }

.menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; cursor: pointer; }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--navy); margin: 4px 0; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 123, 36, 0.35), rgba(224, 123, 36, 0) 70%);
}
.hero .eyebrow { color: #f3b77c; }
.hero h1 {
  font-family: var(--serif); font-weight: 600; font-size: clamp(32px, 5vw, 52px); line-height: 1.15;
  margin: 12px 0 20px; max-width: 820px; position: relative; z-index: 1;
}
html[lang="ja"] .hero h1 { line-height: 1.4; font-size: clamp(28px, 4.2vw, 44px); }
.hero p.lead { font-size: 19px; color: #d6dbe7; max-width: 680px; margin: 0 0 32px; position: relative; z-index: 1; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; position: relative; z-index: 1; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 48px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, 0.15); position: relative; z-index: 1; }
.hero-facts div { font-size: 14px; color: #c2c9d8; }
.hero-facts strong { display: block; color: #fff; font-size: 16px; }

/* Sections */
section { padding: 88px 0; }
section.soft { background: var(--bg-soft); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-dark); margin: 0; }
h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(26px, 3.4vw, 38px); line-height: 1.25; color: var(--navy); margin: 8px 0 16px; }
.section-intro { max-width: 720px; color: var(--muted); margin: 0 0 44px; }
h3 { font-size: 19px; color: var(--navy); margin: 0 0 8px; line-height: 1.4; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card p { margin: 0 0 12px; color: var(--muted); }
.card ul { margin: 0; padding-left: 18px; color: var(--ink); font-size: 15px; }
.card li { margin: 4px 0; }
.card .num { font-size: 13px; font-weight: 700; color: var(--accent-dark); letter-spacing: 0.08em; }

.audience { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.audience div { border-left: 3px solid var(--green); padding: 4px 0 4px 16px; }
.audience strong { display: block; color: var(--navy); }
.audience span { color: var(--muted); font-size: 15px; }

.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.steps li { list-style: none; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: relative; }
.steps li::before { counter-increment: step; content: counter(step, decimal-leading-zero); font-weight: 700; color: var(--accent); font-size: 14px; display: block; margin-bottom: 6px; }
.steps { padding: 0; margin: 0; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

.about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.about p { color: var(--ink); }
.about-panel { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 32px; }
.about-panel h3 { color: #fff; }
.about-panel dl { margin: 0; }
.about-panel dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: #f3b77c; margin-top: 16px; }
.about-panel dd { margin: 4px 0 0; color: #e3e7f0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy); font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); margin: 12px 0 0; max-width: 820px; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; }
.contact-info p { color: var(--muted); }
.contact-info dl { margin: 24px 0 0; }
.contact-info dt { font-weight: 700; color: var(--navy); font-size: 14px; margin-top: 14px; }
.contact-info dd { margin: 2px 0 0; }
form.inquiry { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; color: var(--navy); }
.field .req { color: var(--accent-dark); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 16px; padding: 11px 12px; border: 1px solid #c9ced8; border-radius: 10px; background: #fff; color: var(--ink);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #c0392b; }
.form-note { font-size: 13px; color: var(--muted); margin: 4px 0 16px; }
.form-status { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-size: 15px; display: none; }
.form-status.ok { display: block; background: #eef6e8; color: #2f5a17; border: 1px solid #cfe3bf; }
.form-status.err { display: block; background: #fbecea; color: #8e2a1f; border: 1px solid #f0c9c4; }
.hp { position: absolute; left: -5000px; }

/* Footer */
.site-footer { background: var(--navy); color: #c2c9d8; padding: 56px 0 32px; font-size: 15px; }
.site-footer a { color: #e3e7f0; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { color: #fff; font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 12px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 6px 0; }
.legal { border-top: 1px solid rgba(255, 255, 255, 0.12); margin-top: 36px; padding-top: 20px; font-size: 13px; color: #9aa3b8; }

/* Responsive */
@media (max-width: 960px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .about, .contact { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .menu-toggle { display: block; }
  .nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; padding: 16px 20px 20px; gap: 14px;
  }
  .nav.open { display: flex; }
  .hero { padding: 64px 0 56px; }
  section { padding: 64px 0; }
  .grid-2, .grid-3, .steps, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
}
/* Logo */
.brand { gap: 0; }
.brand-logo { height: 50px; width: auto; display: block; }
.footer-logo { display: inline-block; background: #fff; border-radius: 12px; padding: 10px 14px; margin-bottom: 16px; }
.footer-logo img { height: 40px; width: auto; display: block; }
@media (max-width: 760px) { .brand-logo { height: 42px; } }

/* Service groups */
.group-title { font-family: var(--font); font-size: 14px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); margin: 0 0 18px; }
.grid + .group-title { margin-top: 56px; }
.group-intro { color: var(--muted); margin: -8px 0 22px; }
#advisory { scroll-margin-top: 90px; }
.grid-3 .card p:last-child { margin-bottom: 0; }

/* Keep banner phrases whole */
.eyebrow span { white-space: nowrap; }
html[lang="ja"] .eyebrow { letter-spacing: 0.06em; }
.nw { display: inline-block; }

/* Legal pages */
.legal-page { padding: 64px 0 88px; }
.legal-page .wrap { max-width: 820px; }
.legal-page h1 { font-family: var(--serif); font-weight: 600; color: var(--navy); font-size: clamp(30px, 4vw, 42px); line-height: 1.25; margin: 8px 0; }
.legal-page h2 { font-family: var(--font); font-size: 20px; font-weight: 700; margin: 36px 0 10px; }
.legal-page .effective { color: var(--muted); margin: 0 0 28px; }
.legal-page ul { padding-left: 20px; }
.legal-page li { margin: 6px 0; }
.legal-page .note { background: var(--bg-soft); border-left: 3px solid var(--accent); padding: 12px 16px; border-radius: 8px; font-size: 15px; }
.legal-page address { font-style: normal; }
.legal a { color: #c2c9d8; text-decoration: underline; }