/* 公告弹窗样式 */
.announcement-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease-out;
}

.announcement-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.announcement-content {
    background: rgba(10, 20, 35, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    width: 600px;
    max-width: 90%;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease-out;
}

/* 固定顶栏 */
.announcement-header {
    position: relative;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.announcement-header h1 {
    font-size: 24px;
    margin: 0;
    color: #fff;
    text-align: center;
}

.announcement-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: #999;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
    z-index: 10002;
}

.announcement-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* 滚动内容区域 */
.announcement-body {
    padding: 20px 30px;
    overflow-y: auto;
    flex-grow: 1;
    text-align: left;
}

/* 隐藏滚动条但保持滚动功能 */
.announcement-body::-webkit-scrollbar {
    width: 0px;
    background: transparent;
}

.announcement-body {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* 公告内容布局 - 独立样式，避免受顶栏和底栏影响 */
.announcement-content .announcement-body.left * {
    text-align: left;
    text-align-last: left;
}

.announcement-content .announcement-body.left h2 {
    font-size: 22px;
    margin: 15px 0 12px;
    color: var(--accent, #ffbe50);
    text-align: left;
}

.announcement-content .announcement-body.left h3 {
    font-size: 20px;
    margin: 12px 0 10px;
    color: #ddd;
    text-align: left;
}

.announcement-content .announcement-body.left h4 {
    font-size: 18px;
    margin: 10px 0 8px;
    color: #ccc;
    text-align: left;
}

.announcement-content .announcement-body.left h5 {
    font-size: 16px;
    margin: 10px 0 8px;
    color: #bbb;
    text-align: left;
}

.announcement-content .announcement-body.left p {
    margin: 8px 0;
    line-height: 1.5;
    color: #ddd;
    text-align: left;
}

.announcement-content .announcement-body.left ul,
.announcement-content .announcement-body.left ol {
    margin: 8px 0;
    padding-left: 20px;
    text-align: left;
}

.announcement-content .announcement-body.left li {
    margin: 4px 0;
    line-height: 1.4;
    color: #ddd;
    text-align: left;
}

.announcement-content .announcement-body.left strong {
    font-weight: bold;
    color: #fff;
}

.announcement-content .announcement-body.left em {
    font-style: italic;
}

.announcement-content .announcement-body.left u {
    text-decoration: underline;
}

/* 居中对齐样式 */
.announcement-content .announcement-body.center * {
    text-align: center;
    text-align-last: center;
}

.announcement-content .announcement-body.center h2 {
    font-size: 22px;
    margin: 15px 0 12px;
    color: var(--accent, #ffbe50);
    text-align: center;
}

.announcement-content .announcement-body.center h3 {
    font-size: 20px;
    margin: 12px 0 10px;
    color: #ddd;
    text-align: center;
}

.announcement-content .announcement-body.center h4 {
    font-size: 18px;
    margin: 10px 0 8px;
    color: #ccc;
    text-align: center;
}

.announcement-content .announcement-body.center h5 {
    font-size: 16px;
    margin: 10px 0 8px;
    color: #bbb;
    text-align: center;
}

.announcement-content .announcement-body.center p {
    margin: 8px 0;
    line-height: 1.5;
    color: #ddd;
    text-align: center;
}

.announcement-content .announcement-body.center ul,
.announcement-content .announcement-body.center ol {
    margin: 8px 0;
    padding-left: 20px;
    text-align: center;
}

.announcement-content .announcement-body.center li {
    margin: 4px 0;
    line-height: 1.4;
    color: #ddd;
    text-align: center;
}

.announcement-content .announcement-body.center strong {
    font-weight: bold;
    color: #fff;
}

.announcement-content .announcement-body.center em {
    font-style: italic;
}

.announcement-content .announcement-body.center u {
    text-decoration: underline;
}

.announcement-footer {
    padding: 15px 30px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.announcement-button {
    padding: 10px 24px;
    background: rgba(81, 168, 101, 0.8);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.4s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.announcement-button:hover {
    background: rgba(37, 120, 60, 0.85);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .announcement-content {
        width: 95%;
        max-height: 80vh;
        margin: 20px;
    }
    
    .announcement-header h1 {
        font-size: 20px;
    }
    
    .announcement-body {
        padding: 15px 20px;
    }
    
    .announcement-body h2 {
        font-size: 20px;
    }
    
    .announcement-body h3 {
        font-size: 18px;
    }
    
    .announcement-footer {
        flex-direction: column;
        gap: 10px;
        padding: 15px 20px;
    }
    
    .announcement-button {
        width: 100%;
        padding: 12px 20px;
    }
}