:root {
  --primary-color: #0052cc;
  --secondary-color: #00d4ff;
  --text-dark: #1a1a1a;
  --text-light: #666666;
  --bg-white: #ffffff;
  --bg-light: #f5f5f5;
  --bg-lighter: #e8e8e8;
  --border-color: #e0e0e0;

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  font-weight: 400;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

body {
  color: var(--text-dark);
  background-color: var(--bg-white);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.1rem;
}

p {
  color: var(--text-light);
  margin-bottom: 16px;
}

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

a:hover {
  color: var(--secondary-color);
}

ul {
  list-style: none;
}

header.header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  padding: 24px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 16px;
  color: inherit;
}

.site-logo {
  width: 48px;
  height: 48px;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0;
}

main {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-hero {
  background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
  text-align: center;
  padding: 60px 0;
}

.page-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 0;
}

.page-content {
  padding: 60px 0;
  flex: 1;
}

.content-block {
  margin-bottom: 48px;
}

.content-with-image {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 24px;
}

.content-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.content-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.features-visual {
  display: flex;
  justify-content: center;
  margin: 32px 0;
}

.feature-illustration {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.tech-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 24px;
}

.tech-illustration {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.tech-details ul {
  list-style: none;
  margin: 0;
}

.tech-details li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: var(--text-light);
  margin-bottom: 8px;
}

.tech-details li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2em;
}

.content-block h2 {
  color: var(--text-dark);
  margin-bottom: 20px;
  margin-top: 40px;
}

.content-block:first-of-type h2 {
  margin-top: 0;
}

.content-block p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 1rem;
}

.values-list {
  list-style: none;
  margin: 0;
}

.values-list li {
  padding: 12px 0 12px 32px;
  position: relative;
  color: var(--text-light);
  margin-bottom: 16px;
}

.values-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.values-list strong {
  color: var(--text-dark);
}

.policy-list {
  list-style: none;
  margin: 16px 0;
}

.policy-list li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: var(--text-light);
  margin-bottom: 8px;
  line-height: 1.6;
}

.policy-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2em;
}

.policy-list strong {
  color: var(--text-dark);
}

.policy-list a {
  color: var(--primary-color);
  text-decoration: underline;
}

.policy-list a:hover {
  color: var(--text-dark);
}

footer.footer {
  background-color: var(--text-dark);
  color: var(--bg-white);
  padding: 48px 0 24px;
  margin-top: 40px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  color: var(--bg-white);
  margin-bottom: 16px;
}

.footer-section p {
  color: #cccccc;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 8px;
}

.footer-section a {
  color: #cccccc;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid #333333;
  padding-top: 24px;
  text-align: center;
  color: #999999;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .content-with-image {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .tech-specs {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }

  .page-hero {
    padding: 40px 0;
  }

  .page-content {
    padding: 40px 0;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .page-hero h1 {
    font-size: 1.4rem;
  }

  .page-hero p {
    font-size: 1rem;
  }

  .page-hero {
    padding: 32px 0;
  }

  .page-content {
    padding: 32px 0;
  }

  .content-block {
    margin-bottom: 32px;
  }

  .content-block h2 {
    margin-top: 24px;
  }

  .values-list li {
    padding: 10px 0 10px 28px;
    margin-bottom: 12px;
  }
}