* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; }
body {
  background: #ffffff;
  color: #333;
  min-height: 100vh;
  padding-bottom: 80px;
  position: relative;
}
img { max-width: 100%; border-radius: 12px; }
a { text-decoration: none; color: inherit; }
h1, h2, h3 { margin-bottom: 8px; }