.announcement-section {
        background: #f7f8fc;
    }

    .announcement-intro {
        max-width: 660px;
        margin: 0 auto;
        color: #515b70;
    }

    .announcement-empty-banner {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 40px;
        min-height: 300px;
        overflow: hidden;
        padding: 48px;
        border-radius: 24px;
        background: linear-gradient(120deg, #24176f, #5138ee);
        box-shadow: 0 18px 45px rgba(29, 33, 72, .14);
        color: #fff;
    }

    .announcement-empty-banner::before,
    .announcement-empty-banner::after {
        content: '';
        position: absolute;
        width: 260px;
        height: 260px;
        border: 1px solid rgba(255, 255, 255, .16);
        border-radius: 50%;
        pointer-events: none;
    }

    .announcement-empty-banner::before {
        top: -145px;
        right: -60px;
    }

    .announcement-empty-banner::after {
        bottom: -190px;
        left: -50px;
    }

    .announcement-empty-banner-icon,
    .announcement-empty-banner-content {
        position: relative;
        z-index: 1;
    }

    .announcement-empty-banner-icon {
        display: grid;
        flex: 0 0 124px;
        width: 124px;
        height: 124px;
        place-items: center;
        border: 1px solid rgba(255, 255, 255, .28);
        border-radius: 28px;
        background: rgba(255, 255, 255, .12);
        font-size: 52px;
    }

    .announcement-empty-banner-content {
        max-width: 530px;
    }

    .announcement-empty-banner h3 {
        margin-bottom: 12px;
        color: #fff;
        font-size: clamp(24px, 3vw, 36px);
        line-height: 1.3;
    }

    .announcement-empty-banner p {
        margin-bottom: 0;
        color: rgba(255, 255, 255, .88);
        font-size: 17px;
        line-height: 1.7;
    }

    .announcement-card {
        overflow: hidden;
        border: 1px solid #e9eaf4;
        border-radius: 18px;
        background: #fff;
        box-shadow: 0 12px 35px rgba(29, 33, 72, .06);
        transition: transform .2s ease, box-shadow .2s ease;
    }

    .announcement-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 18px 40px rgba(29, 33, 72, .1);
    }

    .announcement-card-banner {
        display: block;
        overflow: hidden;
        aspect-ratio: 4 / 5;
        background: #eceaff;
    }

    .announcement-card-banner img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .3s ease;
    }

    .announcement-card:hover .announcement-card-banner img {
        transform: scale(1.035);
    }

    .announcement-card-content {
        padding: 28px 30px 32px;
    }

    .announcement-card-category {
        display: block;
        margin-bottom: 12px;
        color: #5138ee;
        font-size: 13px;
        font-weight: 700;
        letter-spacing: .04em;
        text-transform: uppercase;
    }

    .announcement-card h3 {
        margin-bottom: 14px;
        color: #171b38;
        font-size: 22px;
        line-height: 1.4;
    }

    .announcement-card h3 a {
        color: inherit;
    }

    .announcement-card h3 a:hover {
        color: #5138ee;
    }

    .announcement-card p {
        margin-bottom: 0;
        color: #515b70;
        line-height: 1.75;
    }

    .announcement-card-link {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        margin-top: 24px;
        color: #5138ee;
        font-weight: 700;
    }

    .announcement-card-link:hover {
        color: #3724bd;
    }

    .announcement-detail-banner {
        display: block;
        width: 100%;
        height: auto;
        aspect-ratio: 4 / 5;
        object-fit: contain;
        border-radius: 18px;
        background: #eceaff;
    }

    .announcement-detail-content {
        max-width: 560px;
    }

    .announcement-detail-content h1 {
        color: #171b38;
        line-height: 1.25;
    }

    .announcement-detail-content p {
        color: #515b70;
        font-size: 18px;
        line-height: 1.8;
    }

    .announcement-demo-note {
        padding: 14px 18px;
        border-left: 4px solid #5138ee;
        border-radius: 8px;
        background: #f1eeff;
        color: #3724bd;
    }

    @media (max-width: 767.98px) {
        .announcement-empty-banner {
            flex-direction: column;
            gap: 24px;
            min-height: 0;
            padding: 42px 28px;
            text-align: center;
        }

        .announcement-empty-banner-icon {
            flex-basis: 96px;
            width: 96px;
            height: 96px;
            border-radius: 22px;
            font-size: 40px;
        }

        .announcement-card-content {
            padding: 24px;
        }

        .announcement-detail-content p {
            font-size: 16px;
        }
    }