:root {
  --ink: #1c2430;
  --muted: #5e6a78;
  --line: #e6e9ee;
  --paper: #ffffff;
  --wash: #f6f7f9;
  --navy: #163a5c;
  --navy-2: #0f2a44;
  --cta: #c2410c;
  --cta-hover: #9a3412;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  font-size: 15px;
}

img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--cta); }

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.brand:hover { color: inherit; }
.brand strong {
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--navy);
  line-height: 1.3;
}
.brand span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .08em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
}
.nav a:hover,
.nav a.is-active { color: var(--navy); }

.header-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}
.header-tel {
  text-align: right;
  line-height: 1.3;
}
.header-tel small {
  display: block;
  font-size: 11px;
  color: var(--muted);
}
.header-tel a {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .04em;
}
.header-tel a:hover { color: var(--cta); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 26px;
  border: 0;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}
.btn-cta { background: var(--cta); color: #fff; }
.btn-cta:hover { background: var(--cta-hover); color: #fff; }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.7);
}
.btn-ghost:hover { background: #fff; color: var(--navy); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); color: #fff; }

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  height: 40px;
  padding: 0 14px;
  font-size: 13px;
}

.hero {
  position: relative;
  min-height: 520px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background: var(--navy-2);
}
.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,42,68,.88) 0%, rgba(15,42,68,.55) 48%, rgba(15,42,68,.18) 100%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  padding: 72px 0;
  max-width: 560px;
  color: #fff;
}
.hero-copy .tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .12em;
  border: 1px solid rgba(255,255,255,.35);
  padding: 4px 12px;
  margin-bottom: 18px;
}
.hero-copy h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}
.hero-copy p {
  color: rgba(255,255,255,.88);
  margin-bottom: 28px;
  font-size: 15px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.page-head {
  position: relative;
  height: 180px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background: var(--navy-2);
  color: #fff;
}
.page-head img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .35;
}
.page-head .wrap { position: relative; z-index: 1; }
.page-head h1 { font-size: 28px; }
.crumbs {
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255,255,255,.7);
}
.crumbs a { color: rgba(255,255,255,.7); }

.section { padding: 80px 0; }
.section-alt { background: var(--wash); }
.kicker {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cta);
  font-weight: 700;
  margin-bottom: 8px;
}
.section-head {
  margin-bottom: 40px;
}
.section-head.center { text-align: center; }
.section-head h2 {
  font-size: 28px;
  color: var(--navy);
  font-weight: 700;
}
.section-head p {
  margin-top: 10px;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(22,58,92,.08);
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.card-body { padding: 24px; }
.card-body h3 {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 8px;
}
.card-body p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}
.more {
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}
.more:hover { color: var(--cta); }

.points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.point {
  background: #fff;
  padding: 32px 28px;
  border: 1px solid var(--line);
}
.point .num {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cta);
  font-weight: 700;
  margin-bottom: 10px;
}
.point h3 {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 10px;
}
.point p { color: var(--muted); font-size: 14px; }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 22px;
  position: relative;
}
.step b {
  display: block;
  font-size: 28px;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 12px;
}
.step h3 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--muted); }

.split {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: start;
}
.split img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.news { list-style: none; border-top: 1px solid var(--line); }
.news li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.news time { color: var(--muted); font-size: 13px; }

.table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
.table th,
.table td {
  border: 1px solid var(--line);
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
}
.table th {
  width: 28%;
  background: #f3f6f9;
  color: var(--navy);
  font-weight: 600;
}

.cta {
  background: var(--navy-2);
  color: #fff;
  text-align: center;
  padding: 64px 0;
}
.cta h2 { font-size: 26px; margin-bottom: 10px; }
.cta p { opacity: .8; margin-bottom: 24px; }

.aside {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px;
}
.aside h3 {
  font-size: 15px;
  color: var(--navy);
  margin-bottom: 10px;
}
.aside .tel {
  font-size: 24px;
  font-weight: 700;
  color: var(--navy);
}
.aside .tel a { color: inherit; }
.aside p { color: var(--muted); font-size: 13px; margin-top: 6px; }

.service {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  margin-bottom: 20px;
  overflow: hidden;
}
.service img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}
.service-body { padding: 32px; }
.service-body h3 { font-size: 20px; color: var(--navy); margin-bottom: 10px; }
.service-body p { color: var(--muted); margin-bottom: 16px; }
.meta { display: flex; gap: 24px; flex-wrap: wrap; font-size: 13px; }
.meta strong { color: var(--navy); margin-right: 6px; }

.note {
  margin-top: 28px;
  padding: 16px 18px;
  background: #fff8f3;
  border-left: 3px solid var(--cta);
  font-size: 13px;
  color: #6b4a36;
}

.form { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); }
.form th, .form td { border-bottom: 1px solid var(--line); padding: 16px 18px; text-align: left; vertical-align: top; }
.form th { width: 28%; background: #f3f6f9; font-weight: 600; color: var(--navy); }
.form input, .form select, .form textarea {
  width: 100%;
  height: 44px;
  border: 1px solid var(--line);
  padding: 0 12px;
  font: inherit;
  background: #fff;
}
.form textarea { height: 140px; padding: 12px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: 2px solid #163a5c33;
  border-color: var(--navy);
}
.req { color: var(--cta); font-size: 11px; margin-left: 6px; }

.legal { max-width: 800px; }
.legal h2 {
  font-size: 18px;
  color: var(--navy);
  margin: 32px 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.legal p, .legal li { margin-bottom: 10px; color: var(--ink); }
.legal ul { padding-left: 1.2em; margin-bottom: 16px; }

.footer {
  background: #101820;
  color: #9aa3ad;
  padding: 48px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
}
.footer strong { display: block; color: #fff; font-size: 16px; margin-bottom: 12px; }
.footer h4 { color: #fff; font-size: 13px; margin-bottom: 12px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer a { color: #9aa3ad; font-size: 13px; }
.footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #243040;
  padding: 16px 0;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 960px) {
  .cards, .points, .steps, .split, .service, .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 420px; }
  .hero-copy h1 { font-size: 28px; }
  .service img { min-height: 200px; height: 200px; }
  .split img { height: 240px; }
}

@media (max-width: 760px) {
  .header-tel, .nav { display: none; }
  .nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px 20px 24px;
    border-bottom: 1px solid var(--line);
    align-items: flex-start;
    gap: 14px;
  }
  .menu-btn { display: block; }
  .header-inner { min-height: 64px; }
  .section { padding: 56px 0; }
  .news li { grid-template-columns: 1fr; gap: 4px; }
  .form th, .form td { display: block; width: 100%; }
  .form th { border-bottom: 0; padding-bottom: 6px; }
}