/* Mobile-first responsive */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #A8FBD3;
    color: #31326F;
}

.container {
    width: 95%;
    margin: auto;
    padding: 15px;
}

.card {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card img {
    max-width: 380px;       /* ลดความกว้างสูงสุด */
    width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
    margin: 0 auto 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}



h1, h2, h3 {
    color: #4FB7B3;
    margin-bottom: 10px;
}

p {
    line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
  margin: 0 auto;
}

.btn {
    display: inline-block;
    background: #637AB9;
    color: #fff;
    padding: 10px 15px;
    text-decoration: none;
    border-radius: 6px;
    transition: 0.3s;
}
.btn:hover {
    background: #31326F;
}

/* Responsive */
@media (min-width: 768px) {
    .container {
        width: 70%;
    }
}