* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  color: #222;
  line-height: 1.6;
}

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

.site-header {
  background: #000;
  color: #fff;
  padding: 16px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  color: #fff;
  text-decoration: none;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.main-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
}

.main-nav a:hover {
  text-decoration: underline;
}

.hero {
  background: #fff;
  text-align: center;
  padding: 60px 20px 40px;
  border-bottom: 1px solid #e5e5e5;
}

.hero h1 {
  margin: 0;
  font-size: 34px;
}

.hero p {
  margin-top: 12px;
  color: #666;
  font-size: 16px;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.section {
  background: #fff;
  border-radius: 14px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.section h2 {
  margin-top: 0;
  font-size: 24px;
  border-left: 5px solid #000;
  padding-left: 12px;
}

.btn {
  display: inline-block;
  background: #000;
  color: #fff;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 10px;
  font-weight: bold;
  transition: 0.2s ease;
}

.btn:hover {
  background: #333;
}

.btn-outline {
  display: inline-block;
  background: #fff;
  color: #000;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 10px;
  font-weight: bold;
  border: 1px solid #000;
  transition: 0.2s ease;
}

.btn-outline:hover {
  background: #f1f1f1;
}

.btn-area {
  text-align: center;
  margin-top: 30px;
}

.site-footer {
  text-align: center;
  color: #888;
  font-size: 12px;
  padding: 24px 20px 40px;
}

@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .logo a {
    font-size: 22px;
  }

  .main-nav {
    justify-content: center;
    gap: 12px;
  }

  .main-nav a {
    font-size: 16px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero p {
    font-size: 18px;
  }

  .section {
    padding: 22px 18px;
  }
}