:root {
  --navy: #182a3a;
  --navy-deep: #101d28;
  --accent: #a46b46;
  --accent-soft: #efe7e1;
  --text: #25282a;
  --sub: #667078;
  --line: #d9dde0;
  --soft: #f4f6f7;
  --white: #ffffff;
  --max: 1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Yu Gothic", "YuGothic",
               "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.9;
  letter-spacing: .025em;
}

a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-company { font-size: 12px; font-weight: 600; letter-spacing: .12em; color: var(--navy); }
.brand-name {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  letter-spacing: .07em;
  color: var(--navy);
}

nav { display: flex; gap: 30px; font-size: 13px; color: #3c474f; }
nav a:hover { color: var(--accent); }

.hero {
  padding: 104px 0 96px;
  background: linear-gradient(115deg, #ffffff 0%, #ffffff 60%, #f2f5f6 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr .75fr;
  gap: 70px;
  align-items: center;
}

.hero-visual img {
  width: 100%;
  display: block;
  border: 1px solid #d6dade;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
}

h1 {
  margin: 0;
  color: var(--navy-deep);
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.38;
  font-weight: 500;
  letter-spacing: .045em;
}

.lead {
  max-width: 790px;
  margin: 30px 0 0;
  color: #3c4348;
  font-size: 15.5px;
}

section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-head { margin-bottom: 46px; }

h2 {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 29px;
  font-weight: 500;
  letter-spacing: .07em;
}

.section-note { margin: 0; color: var(--sub); font-size: 14px; }

.service {
  display: grid;
  grid-template-columns: 155px 1fr;
  gap: 42px;
  padding: 38px 0;
  border-top: 1px solid var(--line);
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service-no {
  color: var(--accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
}
.service h3 { margin: 0 0 13px; color: var(--navy); font-size: 21px; font-weight: 500; }
.service p { margin: 0 0 15px; }
.service ul { margin: 0; padding-left: 1.25em; color: #464d52; }

.process { background: var(--navy); color: #fff; }
.process .eyebrow { color: #d6ae92; }
.process h2 { color: #fff; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid rgba(255,255,255,.28);
  border-left: 1px solid rgba(255,255,255,.28);
}
.step {
  min-height: 145px;
  padding: 22px 18px;
  border-right: 1px solid rgba(255,255,255,.28);
  border-bottom: 1px solid rgba(255,255,255,.28);
}
.step span {
  display: block;
  margin-bottom: 16px;
  color: #d6ae92;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
}
.step strong { font-size: 15px; font-weight: 500; }

.company-table { width: 100%; border-collapse: collapse; }
.company-table th, .company-table td {
  padding: 18px 12px;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}
.company-table th { width: 180px; color: var(--navy); font-weight: 600; }
.company-table tr:last-child th, .company-table tr:last-child td { border-bottom: 1px solid var(--line); }

.contact-box { max-width: 790px; }
form { margin-top: 32px; }
label { display: block; margin: 20px 0 7px; font-size: 13px; font-weight: 600; color: var(--navy); }
input, select, textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #b9c0c5;
  background: #fff;
  color: var(--text);
  font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
textarea { min-height: 180px; resize: vertical; }
button {
  margin-top: 24px;
  padding: 13px 38px;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: #fff;
  font: inherit;
  cursor: pointer;
}
button:hover { background: var(--navy-deep); }
.form-note { margin-top: 15px; color: var(--sub); font-size: 12px; }

footer { padding: 34px 0; background: var(--navy-deep); color: #cbd2d7; font-size: 12px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
footer strong { color: #fff; font-weight: 500; }

@media (max-width: 800px) {
  nav { display: none; }
  .hero { padding: 72px 0 66px; }
  .hero-grid { grid-template-columns: 1fr; gap: 42px; }
  .hero-visual { max-width: 420px; }
  section { padding: 64px 0; }
  .service { grid-template-columns: 1fr; gap: 7px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .company-table th { width: 110px; }
  .footer-inner { display: block; }
  .footer-inner div + div { margin-top: 8px; }
}