body {
    background-color: #f0f2f5;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-frame {
    width: 390px;
    height: 844px;
    background-color: white;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border: 10px solid #1a1a1a;
    margin: 20px;
}

.phone-content {
    height: 100%;
    overflow-y: auto;
}