.site-announcement {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    place-items: center;
    padding: 20px;
}

.site-announcement-mask {
    position: absolute;
    inset: 0;
    background: rgba(229, 235, 243, .62);
    backdrop-filter: blur(8px);
}

.site-announcement-panel {
    position: relative;
    width: min(760px, calc(100vw - 32px));
    max-height: calc(100vh - 56px);
    overflow: hidden;
    color: #1f2937;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 28px 80px rgba(15, 23, 42, .24);
}

.site-announcement-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    color: #2563eb;
    background: #eef4ff;
    border: 1px solid #cfe0ff;
    border-radius: 8px;
}

.site-announcement-icon svg {
    width: 30px;
    height: 30px;
}

.site-announcement-head {
    position: relative;
    min-height: 82px;
    display: grid;
    place-items: center;
    padding: 18px 72px;
    color: #ffffff;
    background: linear-gradient(135deg, #2f86ff, #1269df);
}

.site-announcement-x {
    position: absolute;
    right: 26px;
    top: 50%;
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    color: #ffffff;
    background: transparent;
    border: 0;
    transform: translateY(-50%);
}

.site-announcement-x svg {
    width: 34px;
    height: 34px;
}

.site-announcement-main {
    min-width: 0;
    padding: 54px 74px 36px;
}

.site-announcement-title {
    margin: 0;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0;
}

.site-announcement-content {
    max-height: min(420px, calc(100vh - 300px));
    overflow: auto;
    color: #111827;
    font-size: 24px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.site-announcement-side {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 0 72px 52px;
}

.site-announcement-time {
    margin: 0 0 18px;
    font-size: 15px;
    line-height: 1.5;
    font-weight: 500;
    color: #64748b;
    word-break: break-word;
}

.site-announcement-close {
    min-width: 210px;
    min-height: 58px;
    padding: 0 26px;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #2f86ff, #1167dc);
    border: 0;
    border-radius: 30px;
}

.site-announcement-later {
    min-width: 210px;
    min-height: 58px;
    padding: 0 26px;
    color: #0f2b5c;
    font-size: 22px;
    font-weight: 700;
    background: #ffffff;
    border: 1px solid #d6dce5;
    border-radius: 30px;
}

@media (max-width: 760px) {
    .site-announcement-panel {
        width: min(94vw, 640px);
        border-radius: 16px;
    }

    .site-announcement-icon {
        width: 42px;
        height: 42px;
    }

    .site-announcement-head {
        min-height: 68px;
        padding: 14px 58px;
    }

    .site-announcement-title {
        font-size: 24px;
    }

    .site-announcement-main {
        padding: 34px 24px 28px;
    }

    .site-announcement-content {
        font-size: 18px;
    }

    .site-announcement-side {
        flex-direction: column;
        padding: 0 22px 28px;
        gap: 12px;
    }

    .site-announcement-close,
    .site-announcement-later {
        width: 100%;
        min-width: 0;
    }
}