.announcement-hero {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: #fff;
    padding: 5rem 0;
    text-align: center;
}

.announcement-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.announcement-hero p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.announcement-content {
    padding: 5rem 0;
    background: #fff;
}

.announcement-main {
    max-width: 900px;
    margin: 0 auto;
}

.announcement-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #f3f4f6;
}

.announcement-date {
    color: #dc2626;
    font-weight: 600;
    font-size: 0.9375rem;
}

.announcement-category {
    color: #6b7280;
    font-size: 0.9375rem;
    padding: 0.25rem 1rem;
    background: #f3f4f6;
    border-radius: 20px;
}

.announcement-main h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #1f2937;
    line-height: 1.3;
}

.announcement-body {
    color: #4b5563;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.announcement-body p {
    margin-bottom: 1.5rem;
}

.announcement-body h3 {
    font-size: 1.75rem;
    color: #1f2937;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

.announcement-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid #f3f4f6;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border: 2px solid #dc2626;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-back:hover {
    background: #dc2626;
    color: #fff;
}

.btn-back svg {
    fill: currentColor;
}

@media (max-width: 768px) {
    .announcement-hero h1 {
        font-size: 2rem;
    }

    .announcement-main h2 {
        font-size: 1.75rem;
    }

    .announcement-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}