:root {
  --bg: #f8f6f0;
  --bg-soft: #fcfbf8;
  --card: #ffffff;
  --text: #2f2f2f;
  --muted: #676767;
  --line: #ddd7c9;
  --accent: #7d8f68;
  --accent-dark: #647453;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(to bottom, #fbfaf6 0%, #f5f1e7 100%);
  line-height: 1.6;
}

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

a {
  color: var(--accent-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
}

.branding {
  min-width: 250px;
}

.logo {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
}

.logo:hover {
  text-decoration: none;
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.main-nav {
  margin-left: auto;
}

.nav-list,
.submenu,
.sitemap-list,
.sitemap-list ul,
.useful-links,
.feature-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-list > li {
  position: relative;
}

.nav-list > li > a {
  display: inline-block;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--text);
}

.nav-list > li > a:hover {
  background: #f2eee4;
  text-decoration: none;
}

.has-submenu {
  display: flex;
  align-items: center;
}

.submenu-toggle {
  width: 34px;
  height: 34px;
  margin-left: 4px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: none;
  padding: 10px;
}

.has-submenu.open .submenu {
  display: block;
}

.submenu li a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text);
}

.submenu li a:hover {
  background: #f5f1e8;
  text-decoration: none;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

.hero {
  padding: 72px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: stretch;
}

.hero-content,
.hero-panel,
.card,
.footer-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-content {
  padding: 40px;
}

.hero-panel {
  padding: 32px;
  background: linear-gradient(180deg, #fdfcf8 0%, #f2ede1 100%);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #edf2e6;
  border: 1px solid #dce5d0;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 18px;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 14px;
}

p {
  margin: 0 0 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 600;
  border: 1px solid var(--line);
  transition: 0.2s ease;
}

.btn:hover {
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

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

.btn-secondary:hover {
  background: #f4f0e7;
}

.feature-points {
  display: grid;
  gap: 12px;
}

.feature-points li {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.intro-section,
.sitemap-section {
  padding: 12px 0 56px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.card {
  padding: 30px;
}

.text-link {
  font-weight: 600;
}

.sitemap-card {
  padding: 30px;
}

.sitemap-list > li {
  margin: 10px 0;
}

.sitemap-list ul {
  padding-left: 24px;
  margin-top: 10px;
}

.site-footer {
  padding: 0 0 44px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
}

.footer-box {
  padding: 30px;
}

.useful-links {
  display: grid;
  gap: 12px;
}

.useful-links li {
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.useful-links li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.useful-links a {
  display: inline-block;
  font-weight: 600;
  margin-bottom: 2px;
}

.useful-links span {
  display: block;
  color: var(--muted);
  font-size: 0.93rem;
}

.copyright {
  margin: 22px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .main-nav {
    width: 100%;
    display: none;
  }

  .main-nav.active {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding-top: 10px;
  }

  .nav-list > li > a {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
  }

  .has-submenu {
    flex-wrap: wrap;
  }

  .submenu-toggle {
    margin: 8px 0 0 auto;
  }

  .submenu {
    position: static;
    width: 100%;
    margin-top: 10px;
    box-shadow: none;
  }

  .hero-grid,
  .cards-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}


.sitemap-visual li {
  margin: 12px 0;
  position: relative;
  padding-left: 14px;
}

.sitemap-visual li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.sitemap-visual ul {
  margin-top: 8px;
  padding-left: 20px;
  border-left: 1px dashed var(--line);
}