* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    background: linear-gradient(135deg, #e6f7ff 0%, #d6eefc 100%);
    color: #1f2937;
}

.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 18px;
}

.notice-card {
    width: 100%;
    max-width: 920px;
    background: #ffffff;
    border-radius: 18px;
    padding: 48px 56px 52px;
    text-align: center;
    box-shadow:
        0 24px 70px rgba(15, 23, 42, 0.14),
        0 2px 8px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(0, 91, 130, 0.12);
    position: relative;
    overflow: hidden;
}

.notice-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 7px;
    width: 100%;
    background: linear-gradient(90deg, #005b82, #0077a8, #e53935, #ffffff, #005b82);
}

.logo-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 28px;
}

.logo-wrapper img {
    max-width: 336px;
    width: 100%;
    height: auto;
    display: block;
}

.divider {
    width: 86px;
    height: 3px;
    background: #005b82;
    margin: 0 auto 30px;
    border-radius: 999px;
}

h1 {
    font-size: 38px;
    line-height: 1.2;
    color: #005b82;
    margin-bottom: 28px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.message {
    max-width: 760px;
    margin: 0 auto 36px;
    font-size: 21px;
    line-height: 1.75;
    color: #263447;
    font-weight: 400;
}

.signature {
    font-size: 20px;
    line-height: 1.65;
    color: #374151;
    font-weight: 600;
}

@media (max-width: 768px) {
    .notice-card {
        padding: 38px 26px 42px;
        border-radius: 15px;
    }

    .logo-wrapper img {
        max-width: 252px;
    }

    h1 {
        font-size: 31px;
    }

    .message {
        font-size: 18px;
        line-height: 1.65;
    }

    .signature {
        font-size: 18px;
    }
}

@media (max-width: 420px) {
    .page {
        padding: 20px 12px;
    }

    .notice-card {
        padding: 32px 20px 36px;
    }

    .logo-wrapper img {
        max-width: 210px;
    }

    h1 {
        font-size: 28px;
    }

    .message,
    .signature {
        font-size: 17px;
    }
}