/**
 * 底部信息栏样式
 * 适配全局主题，背景框层/功能内容层
 */

/* 底部信息栏容器 */
.footer-bar-container {
    width: 100%;
    max-width: 100%;
    margin-top: 40px;
}

/* 底部信息栏 */
.footer-bar {
    width: 100%;
    min-height: 7vh;
    background: var(--bg-primary);
    border-top: 1px solid var(--bg-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.03);
    padding: 16px 24px;
}

/* 底部内容 */
.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    position: relative;
}

/* 左侧区域 */
.footer-content .footer-copyright {
    flex: 1 1 auto;
    order: 1;
    text-align: left;
}

/* 中间区域 - 与整个页面中心对齐 */
.footer-content .footer-links {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    order: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    white-space: nowrap;
}

/* 右侧区域 - 保持原位置右对齐 */
.footer-content .footer-info {
    position: absolute;
    right: 24px;
    order: 3;
    text-align: right !important;
}

/* 底部区块 */
.footer-section {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 版权信息 */
.footer-copyright p {
    font-size: 12px;
    color: var(--text-color) !important;
    margin: 0;
}

/* 链接组 - 基础样式 */
.footer-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.footer-link-btn {
    font-size: 12px;
    color: var(--text-color) !important;
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 4px 8px;
    font-family: inherit;
    border-radius: calc(var(--border-radius) - 2px);
    display: inline-block;
}

.footer-link-btn:hover {
    color: var(--link-color) !important;
    background: var(--hover-bg);
    transform: translateY(-1px);
}

.footer-link-btn:active {
    transform: translateY(0);
    background: var(--active-bg);
}

.footer-link {
    font-size: 12px;
    color: var(--text-color) !important;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--link-color);
}

.footer-divider {
    color: var(--bg-border);
    font-size: 12px;
    user-select: none;
}

/* 版本信息 */
.footer-info {
    font-size: 11px;
    color: var(--text-color) !important;
}

.footer-version {
    margin: 0;
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--bg-border);
    border-radius: calc(var(--border-radius) - 3px);
    transition: all var(--transition-fast);
    cursor: pointer;
    display: inline-block;
}

.footer-version:hover {
    background: var(--hover-bg);
    border-color: var(--link-color);
    color: var(--link-color) !important;
    transform: translateY(-1px);
}

/* 友链区域 */
.footer-friendlinks {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--bg-border);
    text-align: center;
}

.friendlinks-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color) !important;
    text-align: center;
    margin-bottom: 12px;
}

.friendlinks-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 800px;
    margin: 0 auto;
}

.friendlink-item {
    font-size: 12px;
    color: var(--text-color) !important;
    text-decoration: none;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--bg-border);
    border-radius: calc(var(--border-radius) - 2px);
    transition: all var(--transition-fast);
    display: inline-block;
}

.friendlink-item:hover {
    background: var(--hover-bg);
    border-color: var(--link-color);
    color: var(--link-color) !important;
    transform: translateY(-1px);
}

/* 弹窗样式 */
.footer-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.footer-modal-overlay.show {
    opacity: 1;
}

.footer-modal {
    background: var(--bg-primary);
    border: 1px solid var(--bg-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.footer-modal-overlay.show .footer-modal {
    transform: translateY(0);
}

.footer-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--bg-border);
    background: var(--bg-secondary);
}

.footer-modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color) !important;
}

.footer-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-color) !important;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.footer-modal-close:hover {
    background: var(--bg-primary);
    color: var(--error-color) !important;
}

.footer-modal-body {
    padding: 20px;
    max-height: calc(80vh - 120px);
    overflow-y: auto;
}

.footer-modal-content {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-color) !important;
    margin-bottom: 16px;
}

/* 版本历史弹窗样式 */
.version-history-modal {
    max-width: 700px;
    max-height: 85vh;
}

.version-history-container {
    max-height: 65vh;
    overflow-y: auto;
    padding-right: 8px;
}

.version-section {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--bg-border);
}

.version-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.current-version {
    background: var(--hover-bg);
    border-radius: var(--border-radius);
    padding: 16px;
    border: 2px solid var(--link-color);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.version-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--link-color) !important;
}

.version-date {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: calc(var(--border-radius) - 2px);
}

.version-content {
    font-size: 13px;
    line-height: 1.5;
}

.feature-group {
    margin-bottom: 16px;
}

.feature-group:last-child {
    margin-bottom: 0;
}

.feature-group h5 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading) !important;
}

.feature-list {
    margin: 0;
    padding-left: 16px;
}

.feature-list li {
    margin-bottom: 6px;
    color: var(--text-color) !important;
    line-height: 1.4;
}

.system-info {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--bg-border);
}

.system-info h4 {
    margin: 0 0 12px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading) !important;
}

.system-info p {
    margin: 6px 0;
    font-size: 13px;
    color: var(--text-color) !important;
}

/* 滚动条样式 */
.version-history-container::-webkit-scrollbar {
    width: 6px;
}

.version-history-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.version-history-container::-webkit-scrollbar-thumb {
    background: var(--bg-border);
    border-radius: 3px;
}

.version-history-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.footer-modal-footer {
    text-align: right;
    padding-top: 12px;
    border-top: 1px solid var(--bg-border);
}

.footer-modal-footer small {
    font-size: 11px;
    color: var(--text-secondary) !important;
}

/* 大屏幕优化 */
@media (min-width: 1200px) {
    /* 确保按钮组不受两侧区域影响 */
    .footer-content .footer-links {
        white-space: nowrap; /* 防止按钮换行 */
    }
    
    /* 确保两侧区域不会影响中间居中 */
    .footer-content .footer-copyright {
        max-width: 300px;
        text-align: left;
    }
    
    .footer-content .footer-info {
        max-width: 120px;
        text-align: right;
    }
}

/* 响应式 */
@media (max-width: 768px) {
    .footer-bar {
        padding: 12px 16px;
        min-height: 6vh;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
        position: relative;
        align-items: center;
    }

    /* 移动端重新排序和对齐 - 所有元素居中换行 */
    .footer-content .footer-copyright {
        order: 1;
        flex: 0 0 auto;
        text-align: center;
        position: static;
    }

    .footer-content .footer-links {
        order: 2;
        flex: 0 0 auto;
        justify-content: center;
        text-align: center;
        position: static;
        transform: none;
        left: auto;
        white-space: normal;
    }

    .footer-content .footer-info {
        order: 3;
        flex: 0 0 auto;
        text-align: center;
        position: static;
        right: auto;
    }

    .footer-section {
        justify-content: center;
        text-align: center;
        width: 100%;
    }

    .footer-copyright p,
    .footer-link-btn,
    .footer-link,
    .footer-divider {
        font-size: 11px;
    }

    .footer-info {
        font-size: 10px;
    }

    .friendlinks-container {
        gap: 8px;
    }

    .friendlink-item {
        font-size: 11px;
        padding: 4px 8px;
    }

    .footer-modal {
        width: 95%;
        margin: 20px;
    }

    .footer-modal-header,
    .footer-modal-body {
        padding: 16px;
    }

    .footer-modal-content {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .footer-content {
        padding: 0 8px;
    }

    .footer-content .footer-links {
        gap: 4px;
        flex-wrap: wrap;
        justify-content: center;
        position: static;
        transform: none;
        width: 100%;
    }

    .footer-link-btn {
        font-size: 10px;
        padding: 3px 6px;
    }

    .footer-friendlinks {
        margin-top: 12px;
        padding-top: 12px;
    }

    .friendlinks-container {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .friendlink-item {
        width: 100%;
        text-align: center;
    }
}