.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
}

.badge-ai {
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.main-content {
  flex: 1;
  max-width: 1360px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: stretch;
}

@media (min-width: 900px) {
  .main-content {
    flex-direction: row-reverse;
    align-items: flex-start;
    justify-content: space-between;
    gap: 4rem;
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }
}

.card-column {
  width: 100%;
  flex: 1.2;
  max-width: 660px;
  margin: 0 auto;
}

.hero-column {
  width: 100%;
  flex: 1;
  max-width: 540px;
  text-align: left;
}

@media (min-width: 900px) {
  .hero-column {
    padding-top: 1.5rem;
  }
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 2.65rem;
  }
}

.hero-title-wrap {
  position: relative;
  width: 100%;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.hero-info-btn {
  display: none;
}

.hero-info-popover {
  display: none;
}