:root {
  --color-bg: #eaf5ec;
  --color-bg-soft: #f4faf5;
  --color-surface: #ffffff;
  --color-primary: #2f7d5a;
  --color-primary-dark: #235f44;
  --color-text: #263329;
  --color-text-muted: #5b6b60;
  --color-border: #d3e6d8;
  --shadow-card: 0 8px 24px rgba(47, 125, 90, 0.08);
  --radius: 14px;
  --max-width: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Sans", "Yu Gothic", "Segoe UI", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(234, 245, 236, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.02em;
}

.logo-img {
  height: 64px;
  width: auto;
}

.logo-text .accent {
  color: var(--color-primary);
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: 22px;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--color-primary);
}

.back-link {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-surface);
}

/* ---------- Section common ---------- */
.eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-head h1,
.section-head h2 {
  font-size: 2rem;
  margin-bottom: 16px;
  color: var(--color-primary-dark);
}

.section-lead {
  color: var(--color-text-muted);
}

section {
  padding: 96px 0;
}

/* ---------- News ---------- */
.news {
  padding: 20px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.news-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.news-label {
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.news-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.news-list li {
  display: flex;
  gap: 16px;
  align-items: baseline;
  font-size: 0.9rem;
}

.news-list time {
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

/* ---------- Hero ---------- */
.hero {
  padding: 140px 0 110px;
}

.hero-inner {
  max-width: 780px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.3;
  color: var(--color-primary-dark);
  margin-bottom: 24px;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  max-width: 560px;
}

.hero-note {
  font-size: 0.95rem;
  color: var(--color-primary-dark);
  font-weight: 600;
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Services ---------- */
.services {
  background: var(--color-bg-soft);
}

.service-list {
  display: flex;
  flex-direction: column;
}

.service-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 40px;
  padding: 56px 0;
  border-bottom: 1px solid var(--color-border);
}

.service-row:first-child {
  padding-top: 0;
}

.service-row:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.service-row-number {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.5;
}

.service-row-body h3 {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  font-size: 1.3rem;
}

.service-catch {
  font-weight: 600;
  color: var(--color-text);
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.service-row-body p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.service-row-body p:last-child {
  margin-bottom: 0;
}

.service-voices {
  list-style: none;
  margin-bottom: 18px;
}

.service-voices li {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  padding: 8px 0 8px 20px;
  border-left: 2px solid var(--color-border);
  margin-bottom: 6px;
}

/* ---------- About ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-highlight {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
}

.about-highlight p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.about-highlight-emphasis {
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0 !important;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ---------- Strength ---------- */
.strength {
  background: var(--color-bg-soft);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.strength-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.strength-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(47, 125, 90, 0.14);
}

.strength-number {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.strength-card h3 {
  color: var(--color-primary-dark);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.strength-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Achievement ---------- */
.achievement {
  background: var(--color-primary-dark);
  color: #fff;
}

.achievement .eyebrow,
.achievement .section-head h2 {
  color: #fff;
}

.achievement .stat {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: none;
}

.achievement .stat-num {
  font-size: 2.4rem;
  color: #fff;
}

.achievement .stat-label {
  color: #cfe4d6;
}

/* ---------- Message ---------- */
.message-body {
  max-width: 720px;
  margin: 0 auto;
}

.message-body p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.message-emphasis {
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0 !important;
}

/* ---------- Company ---------- */
.company-table {
  max-width: 760px;
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
}

.company-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.company-row dt {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.company-row dd {
  color: var(--color-text-muted);
}

.company-row dd a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ---------- Contact pain points ---------- */
.pain-points {
  list-style: none;
  max-width: 620px;
  margin: 0 auto 40px;
  display: grid;
  gap: 12px;
}

.pain-points li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px 20px;
  font-weight: 500;
}

.pain-points li::before {
  content: "・";
  color: var(--color-primary);
  font-weight: 700;
  margin-right: 4px;
}

.contact-lead {
  max-width: 560px;
  margin: 0 auto 48px;
  text-align: center;
  color: var(--color-text-muted);
}

.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 12px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.stat-num {
  display: block;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* ---------- Contact ---------- */
.contact {
  background: var(--color-bg-soft);
}

.contact-cta {
  max-width: 620px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.contact-cta-lead {
  margin: 0 0 24px;
  color: var(--color-text-muted);
}

.btn-submit {
  width: 100%;
  border: none;
  font-size: 1rem;
}

/* ---------- Policy ---------- */
.policy {
  padding-top: 140px;
}

.policy-body {
  max-width: 720px;
  margin: 0 auto;
}

.policy-body p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.policy-body h3 {
  color: var(--color-primary-dark);
  font-size: 1.1rem;
  margin: 40px 0 16px;
}

.policy-body ul {
  color: var(--color-text-muted);
  margin: 0 0 20px 1.2em;
}

.policy-body li {
  margin-bottom: 8px;
}

.policy-date {
  text-align: right;
  font-size: 0.9rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #e4f1e8;
  padding: 28px 0;
}

.footer-inner {
  text-align: center;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

.footer-link {
  color: #e4f1e8;
  text-decoration: underline;
  font-size: 0.85rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .service-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 40px 0;
  }

  .company-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .service-row-number {
    font-size: 2rem;
  }

  .about-inner {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}

@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .main-nav.open {
    max-height: 360px;
  }

  .main-nav a {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
  }
}

@media (max-width: 720px) {
  .news-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .news-list li {
    flex-direction: column;
    gap: 2px;
  }

  .hero {
    padding: 100px 0 72px;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  section {
    padding: 64px 0;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .contact-cta {
    padding: 28px 20px;
  }
}

@media (max-width: 420px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }
}