* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-family: 'Arial', sans-serif; line-height: 1.6; font-size: 16px; }
body { color: #5a5a5a; background-color: #f4f4f4; overflow-x: hidden; }
.container { margin: 0 auto; padding: 0 2rem; }
.site-header { background-color: #1a237e; color: #fff; padding: 1.5rem 0; box-shadow: 0 3px 8px rgba(0,0,0,.2); }
.logo { font-size: 1.6rem; font-weight: 800; margin: 0 auto; display: flex; justify-content: center; }
.content { padding: 2rem; min-height: 70vh; width: 1100px; }
.content p { margin-bottom: 1.5rem; font-size: 1.1rem; }
.content img { border-radius: 6px; box-shadow: 0 4px 12px rgba(0,0,0,.2); }
.site-footer { background-color: #3f51b5; color: #fff; padding: 2.5rem 0; }
.links { margin-bottom: 1.5rem; font-weight: 800; }
.links a { margin: 0 15px; color: #fff;font-size: 1.1rem; }
.copyright { opacity: .7; font-size: .9rem; }

@media (max-width: 768px) {
  html { font-size: 14px; }
  .container { padding: 0 1rem; }
  .logo { font-size: 1.4rem; }
}