```css
/* =========================================
   IMPORTANT NOTICE - MODERN ANNOUNCEMENT
========================================= */

.top-notice-section {
    max-width: 1240px;
    margin: 30px auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.top-notice-container {
    position: relative;
    display: grid;
    grid-template-columns: 64px 175px minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;

    padding: 24px 28px;

    background: linear-gradient(
        115deg,
        #fff8f0 0%,
        #ffffff 55%,
        #f9edf0 100%
    );

    border: 1px solid #ead3d9;
    border-left: 6px solid #800020;
    border-radius: 16px;

    box-shadow: 0 8px 28px rgba(128, 0, 32, 0.09);

    transition: box-shadow 0.3s ease,
                transform 0.3s ease;
}

.top-notice-container:hover {
    box-shadow: 0 12px 32px rgba(128, 0, 32, 0.15);
    transform: translateY(-2px);
}

/* Bell icon */

.top-notice-icon {
    width: 60px;
    height: 60px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #800020;
    color: #ffffff;

    border-radius: 16px;
    font-size: 25px;

    box-shadow: 0 5px 15px rgba(128, 0, 32, 0.2);
}

.top-notice-icon i {
    animation: noticeBell 3s ease-in-out infinite;
    transform-origin: top center;
}

@keyframes noticeBell {
    0%, 85%, 100% {
        transform: rotate(0deg);
    }

    88% {
        transform: rotate(15deg);
    }

    91% {
        transform: rotate(-13deg);
    }

    94% {
        transform: rotate(9deg);
    }

    97% {
        transform: rotate(-5deg);
    }
}

/* Notice label */

.top-notice-label {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;

    color: #800020;
    font-size: 13px;
    line-height: 1.5;
    letter-spacing: 0.5px;
}

.top-notice-pulse {
    width: 9px;
    height: 9px;
    flex: 0 0 9px;

    background: #d4af37;
    border-radius: 50%;

    animation: noticePulse 2s ease-in-out infinite;
}

@keyframes noticePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.5);
    }

    50% {
        box-shadow: 0 0 0 6px rgba(212, 175, 55, 0);
    }
}

.top-notice-new {
    padding: 3px 8px;

    background: #800020;
    color: #ffffff;

    border-radius: 5px;

    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Notice content */

.top-notice-content {
    min-width: 0;
}

.top-notice-content h2 {
    margin: 0 0 8px;

    font-size: 19px;
    line-height: 1.45;
    font-weight: 700;

    color: #800020;
    overflow-wrap: anywhere;
}

.top-notice-content h2 a {
    color: inherit;
    text-decoration: none;
}

.top-notice-content h2 a:hover {
    color: #a00035;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.top-notice-content p {
    margin: 0 0 10px;

    color: #444444;
    font-size: 14px;
    line-height: 1.7;
}

.top-notice-date {
    display: inline-flex;
    align-items: center;
    gap: 7px;

    color: #666666;
    font-size: 12px;
}

.top-notice-date i {
    color: #800020;
}

/* Read notice button */

.top-notice-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;

    padding: 12px 17px;

    background: #800020;
    color: #ffffff !important;

    border: 1px solid #800020;
    border-radius: 8px;

    font-size: 13px;
    font-weight: 600;
    text-decoration: none !important;
    white-space: nowrap;

    transition: background 0.25s ease,
                color 0.25s ease,
                border-color 0.25s ease;
}

.top-notice-button:hover {
    background: #d4af37;
    border-color: #d4af37;
    color: #4a0012 !important;
}

.top-notice-button i {
    transition: transform 0.25s ease;
}

.top-notice-button:hover i {
    transform: translateX(4px);
}

/* Keyboard accessibility */

.top-notice-section a:focus-visible {
    outline: 3px solid #d4af37;
    outline-offset: 4px;
}

/* =========================================
   TABLETS
========================================= */

@media (max-width: 1000px) {
    .top-notice-container {
        grid-template-columns: 56px minmax(0, 1fr) auto;
        gap: 16px;
        padding: 22px;
    }

    .top-notice-icon {
        width: 54px;
        height: 54px;
        font-size: 22px;
    }

    .top-notice-label {
        grid-column: 2 / -1;
        justify-content: flex-start;
        grid-row: 1;
    }

    .top-notice-icon {
        grid-column: 1;
        grid-row: 1 / span 2;
    }

    .top-notice-content {
        grid-column: 2 / -1;
        grid-row: 2;
    }

    .top-notice-button {
        grid-column: 2 / -1;
        justify-self: start;
        grid-row: 3;
    }
}

/* =========================================
   MOBILE
========================================= */

@media (max-width: 600px) {
    .top-notice-section {
        margin: 22px auto;
        padding: 0 14px;
    }

    .top-notice-container {
        grid-template-columns: 44px minmax(0, 1fr);
        gap: 13px;

        padding: 20px 16px;

        border-left-width: 4px;
        border-radius: 13px;
    }

    .top-notice-icon {
        width: 44px;
        height: 44px;
        font-size: 19px;

        grid-column: 1;
        grid-row: 1;
        border-radius: 12px;
    }

    .top-notice-label {
        grid-column: 2;
        grid-row: 1;

        justify-content: flex-start;
        font-size: 11px;
        gap: 6px;
    }

    .top-notice-content {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .top-notice-content h2 {
        font-size: 17px;
        line-height: 1.5;
    }

    .top-notice-content p {
        font-size: 13px;
        line-height: 1.7;
    }

    .top-notice-button {
        grid-column: 1 / -1;
        grid-row: 3;

        width: 100%;
        box-sizing: border-box;

        min-height: 46px;
        padding: 12px 16px;
    }

    .top-notice-container:hover {
        transform: none;
    }
}

/* Respect visitors who prefer reduced motion */

@media (prefers-reduced-motion: reduce) {
    .top-notice-icon i,
    .top-notice-pulse {
        animation: none !important;
    }

    .top-notice-container,
    .top-notice-button,
    .top-notice-button i {
        transition: none !important;
    }
}
```