.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

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

.site-logo {
  display: inline-flex;
  align-items: center;
  width: 180px;
  max-width: 42vw;
}

.site-logo img {
  width: 100%;
  max-height: 42px;
  object-fit: contain;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-text);
  font-size: 24px;
  line-height: 1;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--color-text);
  font-weight: 700;
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--color-primary-dark);
}

.page-title {
  padding: 42px 0;
  background: linear-gradient(90deg, rgba(5, 193, 192, 0.12), rgba(155, 81, 224, 0.1));
}

.page-title h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
}

.breadcrumb {
  padding: 12px 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  border-bottom: 1px solid #eef4f4;
}

.breadcrumb a {
  color: var(--color-muted);
}

.main {
  padding: 48px 0 72px;
}

.section {
  margin-bottom: 54px;
}

.section h2 {
  margin-bottom: 18px;
  color: var(--color-primary-dark);
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.section h3 {
  margin-bottom: 10px;
  color: var(--color-accent);
  font-size: 1.25rem;
}

.site-footer {
  padding: 34px 0;
  color: var(--color-white);
  background: #263238;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner p {
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: var(--color-white);
}

.page-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: none;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  background: var(--color-primary-dark);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

.page-top.is-visible {
  display: flex;
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 64px;
  }

  .site-logo img {
    max-height: 36px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    right: 16px;
    left: 16px;
    display: none;
    padding: 14px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    display: grid;
    gap: 8px;
  }

  .site-nav a {
    display: block;
    padding: 8px 10px;
  }

  .footer-inner {
    display: grid;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}