body {
    font-family: Poppins, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #fff;
    overflow-x: hidden;
}
header, footer {
    background-color: #000;
    color: white;
    text-align: center;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
    left: 0;
}
.hero-section {
    color: #000;
    text-align: center;
    padding: 20px 0;
}
.container {
    max-width: 900px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}
h1 {
    font-size: 40px;
    line-height: 1.4;
    color: #000;
    text-align: center;
}
h2 {
    font-size: 28px;
    color: #000;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 30px;
}
h3 {
    font-size: 24px;
    color: #3454ad;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 30px;
}
p {
    font-size: 18px;
    line-height: 1.6;
}

.logo {
    max-width: 220px;
    margin: 20px auto;
    display: block;
}

.ecover-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto; 
    max-width: 350px;
}

.cta-button {
    display: block;
    background-color: #b5ce2b;
    color: #fff;
    text-align: center;
    padding: 15px 30px;
    margin: 20px auto;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    font-size: 20px;
}
.cta-button:hover {
    background-color: #a0b722;
}
.section {
    background-color: #f4f4f4;
    padding: 40px;
    margin: 20px 0;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.order-section {
    background-color: #f4f4f4;
    padding: 40px;
    margin: 20px 0;
    border-style: dashed;
    border-width: 4px;
}

ul {
    list-style: none;
    margin-left: 0;
    padding-left: 22px;
    font-size: 18px;
    margin-top: 25px;
}
ul li {
    margin-bottom: 15px;
}
ul li:before {
content: '✓ ';
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 10px;
    }
    h1 {
        font-size: 32px;
        color: #000;
        text-align: center;
    }
    .ecover-img {
        max-width: 80%;
    }
    .container img + p {
        margin-top: 10px;
    }
}