body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f4f7fb;
    color: #333;
    line-height: 1.7;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

header {
    background: linear-gradient(90deg, #1e3c72, #2a5298);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

h1, h2, h3 {
    margin-bottom: 15px;
}

h2 {
    color: #1e3c72;
    margin-top: 40px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 25px;
    background-color: #ff6600;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 15px;
    transition: 0.3s;
}

.btn-primary:hover {
    background-color: #e65c00;
}

.content {
    padding: 40px 0;
}

.payment-box {
    background-color: #ffffff;
    padding: 20px;
    border-left: 5px solid #2a5298;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
    margin: 20px 0;
}

ul, ol {
    padding-left: 20px;
}

footer {
    background-color: #1e3c72;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}