body {
    font-family: 'Inter', 'Segoe UI', 'Microsoft JhengHei', Arial, sans-serif;
    background: #f7f8fa;
    color: #222;
}

header {
    background: linear-gradient(90deg, #2b6cb0 0%, #3182ce 100%);
    box-shadow: 0 4px 24px rgba(44, 62, 80, 0.08);
}

h1, h2, h3, h4 {
    font-family: 'Inter', 'Segoe UI', 'Microsoft JhengHei', Arial, sans-serif;
    font-weight: 700;
    color: #2b6cb0;
}

.btn-primary {
    background: linear-gradient(90deg, #2b6cb0 0%, #3182ce 100%);
    border: none;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.08);
    transition: background 0.3s;
}
.btn-primary:hover {
    background: linear-gradient(90deg, #3182ce 0%, #2b6cb0 100%);
}

.card {
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(44, 62, 80, 0.08);
    border: none;
    transition: box-shadow 0.3s;
}
.card:hover {
    box-shadow: 0 8px 32px rgba(44, 62, 80, 0.16);
}

section {
    margin-bottom: 48px;
}

#footer {
    margin-top: 40px;
    background: #2b6cb0;
    color: #fff;
    box-shadow: 0 -2px 8px rgba(44, 62, 80, 0.08);
}