body, html {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #f5f7fa;
    font-family: 'Segoe UI', Arial, sans-serif;
}

.center-box {
    min-width: 280px;
    max-width: 370px;
    width: 90vw;
    margin: auto;
    margin-top: 5vh;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    padding: 2rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a2a3a;
}

.notice {
    font-size: 1rem;
    color: #444;
    margin-bottom: 1.2rem;
}

hr {
    width: 60%;
    border: none;
    border-top: 1px solid #e0e0e0;
    margin: 1rem 0;
}

.company-details {
    font-size: 0.97rem;
    color: #222;
    line-height: 1.7;
}

.company-details strong {
    font-size: 1.07rem;
    color: #0077cc;
    font-weight: 600;
}

.email-label {
    color: #888;
    font-size: 0.97rem;
}

a {
    color: #0077cc;
    text-decoration: none;
    word-break: break-all;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    .center-box {
        padding: 1.2rem 0.5rem;
        max-width: 98vw;
    }
    h1 {
        font-size: 1.1rem;
    }
    .notice, .company-details {
        font-size: 0.93rem;
    }
}