/* 首页公告弹窗 */
.announcement-popup {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.announcement-popup-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
}

.announcement-popup-content {
    position: relative;
    width: 100%;
    max-width: 520px;
    max-height: min(88vh, 640px);
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow:
        0 24px 80px rgba(15, 23, 42, 0.28),
        0 0 0 1px rgba(255, 255, 255, 0.08);
    animation: announcementPopupEnter 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes announcementPopupEnter {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 顶部渐变区域 */
.announcement-popup-hero {
    flex-shrink: 0;
    padding: 1.35rem 1.5rem 1.25rem;
    background: linear-gradient(135deg, #1565C0 0%, #1976d2 55%, #1e88e5 100%);
    color: #fff;
    position: relative;
}

.announcement-popup-hero::after {
    content: '';
    position: absolute;
    right: -2rem;
    top: -2rem;
    width: 8rem;
    height: 8rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

.announcement-popup-hero-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.85rem;
    position: relative;
    z-index: 1;
}

.announcement-popup-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.28rem 0.75rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    backdrop-filter: blur(8px);
}

.announcement-popup-badge.important {
    background: rgba(254, 226, 226, 0.95);
    color: #b91c1c;
}

.announcement-popup-badge.notice {
    background: rgba(255, 255, 255, 0.92);
    color: #1565C0;
}

.announcement-popup-badge.update {
    background: rgba(219, 234, 254, 0.95);
    color: #1d4ed8;
}

.announcement-popup-close {
    flex-shrink: 0;
    width: 2.1rem;
    height: 2.1rem;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.announcement-popup-close:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: scale(1.05);
}

.announcement-popup-title {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.45;
    color: #fff;
    word-break: break-word;
    position: relative;
    z-index: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

/* 多条切换导航 */
.announcement-popup-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
    position: relative;
    z-index: 1;
}

.announcement-popup-nav-btn {
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.announcement-popup-nav-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.45);
}

.announcement-popup-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.announcement-popup-counter {
    min-width: 4.5rem;
    padding: 0.3rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    text-align: center;
    letter-spacing: 0.04em;
}

/* 内容区 */
.announcement-popup-body {
    flex: 1;
    min-height: 0;
    padding: 1.25rem 1.5rem;
    background: #f8fafc;
    overflow-y: auto;
}

.announcement-popup-text-card {
    background: #fff;
    border: 1px solid #e8edf3;
    border-radius: 14px;
    padding: 1.15rem 1.25rem;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.announcement-popup-text {
    margin: 0;
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.75;
    white-space: pre-wrap;
    word-break: break-word;
}

/* 底部操作区 */
.announcement-popup-footer {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem 1.35rem;
    background: #fff;
    border-top: 1px solid #eef2f6;
}

.announcement-popup-dismiss {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.84rem;
    color: #64748b;
    flex: 1;
    min-width: 0;
}

.announcement-popup-dismiss input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.announcement-popup-dismiss-box {
    flex-shrink: 0;
    width: 1.05rem;
    height: 1.05rem;
    border: 1.5px solid #cbd5e1;
    border-radius: 4px;
    background: #fff;
    position: relative;
    transition: all 0.2s ease;
}

.announcement-popup-dismiss input:checked + .announcement-popup-dismiss-box {
    background: #1565C0;
    border-color: #1565C0;
}

.announcement-popup-dismiss input:checked + .announcement-popup-dismiss-box::after {
    content: '';
    position: absolute;
    left: 0.28rem;
    top: 0.1rem;
    width: 0.28rem;
    height: 0.55rem;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.announcement-popup-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.announcement-popup-link {
    padding: 0.6rem 0.95rem;
    border-radius: 10px;
    font-size: 0.84rem;
    font-weight: 500;
    color: #64748b;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.announcement-popup-link:hover {
    color: #1565C0;
    background: #eff6ff;
}

.announcement-popup-btn {
    padding: 0.62rem 1.35rem;
    border-radius: 10px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.announcement-popup-btn-primary {
    background: linear-gradient(135deg, #1565C0, #1976d2);
    color: #fff;
    box-shadow: 0 4px 14px rgba(21, 101, 192, 0.28);
}

.announcement-popup-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(21, 101, 192, 0.35);
}

@media (max-width: 560px) {
    .announcement-popup {
        padding: 1rem;
        align-items: center;
        justify-content: center;
    }

    .announcement-popup-content {
        max-height: min(90vh, 640px);
        border-radius: 20px;
    }

    .announcement-popup-hero {
        padding: 1.15rem 1.15rem 1rem;
    }

    .announcement-popup-title {
        font-size: 1.15rem;
    }

    .announcement-popup-body {
        padding: 1rem 1.15rem;
    }

    .announcement-popup-footer {
        flex-direction: column;
        align-items: stretch;
        padding: 1rem 1.15rem 1.15rem;
    }

    .announcement-popup-actions {
        width: 100%;
    }

    .announcement-popup-link {
        flex: 1;
        text-align: center;
    }

    .announcement-popup-btn {
        flex: 1;
    }
}