/* USCXI-Chat 评论系统样式*/

:root {
    --uc-primary: #3b82f6;
    --uc-primary-hover: #2563eb;
    --uc-primary-light: rgba(59, 130, 246, 0.1);
    --uc-bg: #ffffff;
    --uc-bg-secondary: #f8fafc;
    --uc-bg-tertiary: #f1f5f9;
    --uc-border: #e2e8f0;
    --uc-text: #1e293b;
    --uc-text-secondary: #64748b;
    --uc-text-tertiary: #94a3b8;
    --uc-success: #10b981;
    --uc-error: #ef4444;
    --uc-warning: #f59e0b;
    --uc-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --uc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --uc-radius: 12px;
    --uc-radius-sm: 8px;
    --uc-transition: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --uc-bg: #1e293b;
        --uc-bg-secondary: #334155;
        --uc-bg-tertiary: #475569;
        --uc-border: #475569;
        --uc-text: #f1f5f9;
        --uc-text-secondary: #cbd5e1;
        --uc-text-tertiary: #94a3b8;
        --uc-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }
}

.uscxi-chat {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--uc-text);
    background: var(--uc-bg);
    border-radius: var(--uc-radius);
    padding: 24px;
    margin: 30px 0;
    box-shadow: var(--uc-shadow);
}

/* 头部 */
.uc-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--uc-border);
}

.uc-title {
    font-size: 18px;
    font-weight: 600;
}

.uc-title i {
    margin-right: 6px;  /* 图标和文字间距 */
    color: #1e293b;  /* 图标颜色 */
}

.uc-count {
    color: var(--uc-text);
    font-size: 13px;
    background: var(--uc-bg-secondary);
    padding: 4px 10px;
    border-radius: 20px;
}

.uc-cache-off {
    font-size: 12px;
    opacity: 0.5;
    cursor: help;
}

.uc-admin-btn {
    margin-left: auto;
    background: transparent;
    border: 1px solid var(--uc-border);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--uc-radius-sm);
    font-size: 14px;
    transition: all var(--uc-transition);
}

.uc-admin-btn:hover {
    color: var(--uc-primary-hover);
    background: var(--uc-bg-secondary);
    border-color: var(--uc-primary);
}

/* 管理面板 */
.uc-admin-panel {
    background: var(--uc-bg-secondary);
    border-radius: var(--uc-radius-sm);
    padding: 12px;
    margin-bottom: 16px;
}

.uc-admin-login {
    display: flex;
    gap: 8px;
}

.uc-admin-pwd {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--uc-border);
    border-radius: 6px;
    font-size: 14px;
    background: var(--uc-bg);
    color: var(--uc-text);
}

.uc-admin-login-btn {
    padding: 8px 16px;
    background: var(--uc-primary);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.uc-admin-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.uc-admin-status {
    color: var(--uc-success);
    font-size: 13px;
}

.uc-clear-cache-btn {
    padding: 4px 10px;
    background: var(--uc-bg);
    border: 1px solid var(--uc-border);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    color: var(--uc-text-secondary);
}

.uc-clear-cache-btn:hover {
    border-color: var(--uc-warning);
    color: var(--uc-warning);
}

.uc-admin-logout-btn {
    padding: 4px 10px;
    background: var(--uc-error);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

/* 编辑器 */
.uc-editor {
    background: var(--uc-bg-secondary);
    border-radius: var(--uc-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.uc-user-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.uc-input-group {
    position: relative;
}

.uc-required {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--uc-error);
    font-size: 12px;
}

.uc-nickname,
.uc-email {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    font-size: 14px;
    background: var(--uc-bg);
    color: var(--uc-text);
    outline: none;
    transition: all var(--uc-transition);
    box-sizing: border-box;
}

.uc-nickname {
    padding-right: 30px;
}

.uc-nickname:focus,
.uc-email:focus {
    border-color: var(--uc-primary);
    box-shadow: 0 0 0 3px var(--uc-primary-light);
}

.uc-nickname::placeholder,
.uc-email::placeholder {
    color: var(--uc-text-tertiary);
}

.uc-reply-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--uc-primary-light);
    border-radius: var(--uc-radius-sm);
    margin-bottom: 16px;
    color: var(--uc-primary);
    font-size: 13px;
}

.uc-cancel-reply {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--uc-text-secondary);
    font-size: 16px;
    line-height: 1;
    transition: all var(--uc-transition);
}

.uc-cancel-reply:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--uc-error);
}

.uc-textarea-wrapper {
    position: relative;
    margin-bottom: 16px;
}

.uc-content {
    width: 100%;
    min-height: 100px;
    padding: 14px 16px;
    padding-bottom: 30px;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    font-size: 14px;
    font-family: inherit;
    line-height: 1.6;
    resize: vertical;
    background: var(--uc-bg);
    color: var(--uc-text);
    outline: none;
    transition: all var(--uc-transition);
    box-sizing: border-box;
}

.uc-content:focus {
    border-color: var(--uc-primary);
    box-shadow: 0 0 0 3px var(--uc-primary-light);
}

.uc-content::placeholder {
    color: var(--uc-text-tertiary);
}

.uc-char-count {
    position: absolute;
    right: 12px;
    bottom: 8px;
    font-size: 12px;
    color: var(--uc-text-tertiary);
    background: var(--uc-bg);
    padding: 2px 6px;
    border-radius: 4px;
    pointer-events: none;
    transition: color var(--uc-transition);
}

.uc-char-count.uc-char-warning {
    color: var(--uc-warning);
}

.uc-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.uc-refresh-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    color: var(--uc-text);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--uc-transition);
}

.uc-refresh-btn:hover:not(:disabled) {
    background: var(--uc-bg);
    color: var(--uc-primary);
    border-color: var(--uc-primary);
}

.uc-refresh-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.uc-refresh-icon {
    transition: transform 0.3s ease;
}

.uc-refresh-icon.uc-spinning {
    animation: uc-spin 1s linear infinite;
}

@keyframes uc-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.uc-submit-btn {
    padding: 10px 28px;
    background: var(--uc-primary);
    color: white;
    border: none;
    border-radius: var(--uc-radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--uc-transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.uc-submit-btn:hover:not(:disabled) {
    background: var(--uc-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--uc-shadow);
}

.uc-submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.uc-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 加载状态 */
.uc-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px;
    color: var(--uc-text-secondary);
}

.uc-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--uc-border);
    border-top-color: var(--uc-primary);
    border-radius: 50%;
    animation: uc-spin 1s linear infinite;
}

/* 空状态 */
.uc-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px;
    color: var(--uc-text-secondary);
    text-align: center;
}

.uc-empty-icon {
    font-size: 48px;
    opacity: 0.5;
}

/* 错误状态 */
.uc-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 32px;
    color: var(--uc-error);
    text-align: center;
}

.uc-retry-btn {
    padding: 8px 20px;
    background: var(--uc-error);
    color: white;
    border: none;
    border-radius: var(--uc-radius-sm);
    cursor: pointer;
    font-size: 14px;
    transition: opacity var(--uc-transition);
}

.uc-retry-btn:hover {
    opacity: 0.9;
}

/* ==================== 评论列表（紧凑版）==================== */
.uc-comments-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.uc-comment {
    padding: 12px 0;
    border-bottom: 1px solid var(--uc-border);
}

.uc-comment:last-child {
    border-bottom: none;
}

.uc-comment-main {
    display: flex;
    gap: 12px;
}

/* 回复评论：简洁样式 */
.uc-children {
    margin-top: 8px;
    margin-left: 52px;
}

.uc-children .uc-comment {
    padding: 8px 0;
    border-bottom: 1px dashed var(--uc-border);
}

.uc-children .uc-comment:last-child {
    border-bottom: none;
}

.uc-children .uc-avatar {
    width: 32px;
    height: 32px;
}

.uc-children .uc-avatar-letter {
    font-size: 13px;
}

.uc-avatar {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--uc-bg-tertiary);
}

.uc-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.uc-avatar-letter {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
}

.uc-comment-body {
    flex: 1;
    min-width: 0;
}

.uc-comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.uc-comment-nickname {
    font-weight: 600;
    color: var(--uc-text);
    font-size: 14px;
}

.uc-reply-arrow {
    color: var(--uc-text-tertiary);
    font-size: 12px;
}

.uc-reply-to-name {
    color: var(--uc-primary);
    font-size: 13px;
}

/* 时间和回复按钮放在同一行右侧 */
.uc-comment-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.uc-comment-time {
    color: var(--uc-text-tertiary);
    font-size: 12px;
}

.uc-reply-btn,
.uc-delete-btn {
    background: transparent;
    border: none;
    color: var(--uc-text-tertiary);
    cursor: pointer;
    font-size: 12px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all var(--uc-transition);
}

.uc-reply-btn:hover {
    background: var(--uc-bg-secondary);
    color: var(--uc-primary);
}

.uc-delete-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--uc-error);
}

.uc-comment-content {
    word-break: break-word;
    color: var(--uc-text);
    line-height: 1.6;
    font-size: 14px;
}

.uc-comment-content a {
    color: var(--uc-primary);
    text-decoration: none;
}

.uc-comment-content a:hover {
    text-decoration: underline;
}

/* ==================== 分页按钮 ==================== */
.uc-load-more-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    margin-top: 8px;
    border-top: 1px dashed var(--uc-border);
}

.uc-load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--uc-bg-secondary);
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    color: var(--uc-text);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--uc-transition);
}

.uc-load-more-btn:hover {
    background: var(--uc-bg-tertiary);
    border-color: var(--uc-primary);
    color: var(--uc-primary);
}

.uc-load-more-text {
    font-weight: 500;
}

.uc-load-more-count {
    font-size: 12px;
    color: var(--uc-text-tertiary);
}

.uc-load-all-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    color: var(--uc-text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--uc-transition);
}

.uc-load-all-btn:hover {
    background: var(--uc-primary);
    border-color: var(--uc-primary);
    color: white;
}

/* 收起按钮 */
.uc-collapse-wrapper {
    display: flex;
    justify-content: center;
    padding: 16px 0;
    margin-top: 8px;
    border-top: 1px dashed var(--uc-border);
}

.uc-collapse-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius-sm);
    color: var(--uc-text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--uc-transition);
}

.uc-collapse-btn:hover {
    background: var(--uc-bg-secondary);
    color: var(--uc-text);
}

.uc-collapse-btn::before {
    content: '↑';
    font-size: 14px;
}

/* 新评论高亮 */
.uc-comment-new {
    animation: uc-highlight 2s ease;
}

@keyframes uc-highlight {
    0%, 50% {
        background: var(--uc-primary-light);
    }
    100% {
        background: transparent;
    }
}

/* Toast 提示 */
.uc-toast-global {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 28px;
    border-radius: var(--uc-radius-sm);
    color: white;
    font-size: 14px;
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--uc-shadow-lg);
    max-width: 90vw;
    text-align: center;
}

.uc-toast-global.uc-toast-show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.uc-toast-success {
    background: var(--uc-success);
}

.uc-toast-error {
    background: var(--uc-error);
}

.uc-toast-info {
    background: var(--uc-primary);
}

.uc-toast-warning {
    background: var(--uc-warning);
}

/* 浏览量显示 */
.uc-views {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #666;
    font-size: 13px;
    margin-left: 12px;
}

.uc-views i {
    font-size: 12px;
}

.uc-views-count {
    font-weight: 500;
}

/* 响应式 */
@media (max-width: 640px) {
    .uscxi-chat {
        padding: 16px;
        margin: 20px 0;
        border-radius: var(--uc-radius-sm);
    }
    
    .uc-user-info {
        grid-template-columns: 1fr;
    }
    
    .uc-avatar {
        width: 36px;
        height: 36px;
    }
    
    .uc-comment-header {
        flex-wrap: wrap;
    }
    
    .uc-comment-meta {
        width: 100%;
        margin-left: 0;
        margin-top: 4px;
        justify-content: flex-start;
    }
    
    .uc-actions {
        flex-direction: row;
    }
    
    .uc-refresh-btn {
        flex: 0 0 auto;
        padding: 10px 12px;
    }
    
    .uc-submit-btn {
        flex: 1;
        justify-content: center;
    }
    
    .uc-children {
        margin-left: 36px;
    }
    
    .uc-children .uc-avatar {
        width: 28px;
        height: 28px;
    }
    
    /* 分页按钮响应式 */
    .uc-load-more-wrapper {
        flex-direction: column;
        gap: 8px;
    }
    
    .uc-load-more-btn,
    .uc-load-all-btn {
        width: 100%;
        justify-content: center;
    }
}