/* 直接在HTML中添加样式，确保优先级最高 */
body {
    padding: 20px !important;
    margin: 0 !important;
}
.header {
    margin: -20px -20px 1rem !important;
    width: calc(100% + 40px) !important;
    padding: 1rem 0 !important;
    background: #1f4977 !important;
    color: white !important;
}
.header-content {
    max-width: 1200px !important;
    margin: 0 auto !important;
    padding: 0 0.5rem !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
}

.header-top {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 1rem !important;
}

.header-info {
    flex: 1 !important;
}
.announcement {
    max-width: 1200px !important;
    margin: 0 auto 1rem !important;
    width: 100% !important;
    background: #f8f9fa !important;
    border: 1px solid #e9ecef !important;
    border-radius: 4px !important;
    box-sizing: border-box !important;
}
.announcement-content {
    padding: 0.75rem 1rem !important;
    display: flex !important;
    align-items: center !important;
}
.announcement-icon {
    margin-right: 0.75rem !important;
    font-size: 1.25rem !important;
}
.announcement-text {
    color: #495057 !important;
    font-size: 0.9rem !important;
}
.container {
    max-width: 1200px !important;
    margin: 0 auto !important;
}

/* 下拉菜单样式 */
.dropdown {
    position: relative !important;
    display: inline-block !important;
}

.dropdown .nav-link {
    white-space: nowrap !important;
}

.dropdown-menu {
    display: none !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    background-color: #336699 !important;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2) !important;
    z-index: 1000 !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.dropdown:hover .dropdown-menu {
    display: block !important;
}

.dropdown-menu li {
    margin: 0 !important;
    padding: 0 !important;
}

.dropdown-menu li a {
    color: white !important;
    padding: 0.75rem 1rem !important;
    text-decoration: none !important;
    display: block !important;
    font-size: 0.9rem !important;
    text-align: center !important;
    transition: background-color 0.2s ease !important;
}

.dropdown-menu li a:hover {
    background-color: rgba(255,255,255,0.1) !important;
}

/* 内容区域样式 */
.content-area {
    min-height: 400px;
    padding: 2rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 分页按钮样式 */
.pagination-btn {
    padding: 0.5rem 1rem;
    margin: 0 0.5rem;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    background-color: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pagination-btn:hover {
    background-color: #f8f9fa;
    border-color: #adb5bd;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 图片展示样式 */
.icon-item {
    flex: 0 0 calc(20% - 1rem);
    max-width: calc(20% - 1rem);
    text-align: center;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    height: 220px;
}

.icon-item .image-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #dee2e6;
    border-radius: 4px 4px 0 0;
    overflow: hidden;
    min-height: 150px;
    padding: 10px;
}

.icon-item img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.icon-item .icon-name {
    margin: 0;
    padding: 0.5rem;
    font-size: 0.8rem;
    color: #333;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-top: none;
    border-radius: 0 0 4px 4px;
    word-break: break-all;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .icon-item {
        flex: 0 0 calc(25% - 1rem);
        max-width: calc(25% - 1rem);
    }
}

@media (max-width: 768px) {
    .icon-item {
        flex: 0 0 calc(33.333% - 1rem);
        max-width: calc(33.333% - 1rem);
    }
}

@media (max-width: 576px) {
    .icon-item {
        flex: 0 0 calc(50% - 1rem);
        max-width: calc(50% - 1rem);
    }
}