* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: #f9f9fb; color: #1a1a1a; line-height: 1.6; }
h1 {
    color: #1a1a1a;
    font-size: 2em;
}
h2 {
    color: #2a2a2a;
    margin-top: 1.5em;
}
p { margin-bottom: 1em; }
strong {
    font-weight: bold;
}
blockquote {
    font-style: italic;
    color: #555;
    border-left: 4px solid #ccc;
    padding-left: 1em;
    margin-left: 0;
}
/* Thêm style mới cho hình ảnh minh hoạ */
.image-center {
    text-align: center;
    margin: 2em 0;
}

.image-center img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 0 12px rgba(0,0,0,0.05);
}

.img-caption {
    font-size: 14px;
    color: #666;
    margin-top: 8px;
    font-style: italic;
}