body {
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans SC','Noto Sans TC',sans-serif;
  background: linear-gradient(135deg, #4e9af1, #6f6dd6);
  color: #fff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}
.container {
  max-width: 1000px;
  animation: fadeIn 1.2s ease forwards;
  width: 100%;
}
h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 700;
}
.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  text-align: left;
  align-items: stretch; /* equal heights */
}
.card {
  background: rgba(255,255,255,0.1);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100%;
}
.card strong {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.card p {
  margin: 0;
  flex-grow: 1;
}
a {
  color: #ffeb3b;
  text-decoration: none;
  font-weight: bold;
}
a:hover {
  text-decoration: underline;
}
footer {
  margin-top: 3rem;
  font-size: 0.9rem;
  opacity: 0.9;
  text-align: center;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width:600px){
  .card { text-align: center; }
}