/* ============================================================
   智能数据查询助手 - 自定义样式
   主色调：#1890ff（蓝色系）
   ============================================================ */

:root {
    --primary-color: #1890ff;
    --primary-dark: #096dd9;
    --primary-light: #40a9ff;
    --primary-bg: #e6f7ff;
    --success-color: #52c41a;
    --warning-color: #faad14;
    --danger-color: #ff4d4f;
    --text-primary: #262626;
    --text-secondary: #595959;
    --text-tertiary: #8c8c8c;
    --border-color: #d9d9d9;
    --bg-layout: #f0f2f5;
    --bg-component: #ffffff;
    --sidebar-width: 280px;
    --navbar-height: 56px;
    --shadow-base: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-layout);
    margin: 0;
    padding: 0;
    overflow: hidden;
}

/* ============================================================
   顶部导航栏
   ============================================================ */
.app-navbar {
    height: var(--navbar-height);
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow-base);
    display: flex;
    align-items: center;
    padding: 0 24px;
    color: #fff;
    position: relative;
    z-index: 1030;
}

.app-navbar .navbar-brand {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-navbar .navbar-brand .logo-icon {
    font-size: 22px;
}

.app-navbar .navbar-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 16px;
}

.app-navbar .user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.95);
}

.app-navbar .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.app-navbar .btn-logout {
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: transparent;
    padding: 4px 16px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.app-navbar .btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.app-navbar .btn-admin-link {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 4px;
    transition: all 0.2s;
}

.app-navbar .btn-admin-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #fff;
}

/* ============================================================
   主布局容器
   ============================================================ */
.app-layout {
    display: flex;
    height: calc(100vh - var(--navbar-height));
    overflow: hidden;
}

/* ============================================================
   左侧栏
   ============================================================ */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-component);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-section.sessions-section {
    flex: 1;
    min-height: 0;
}

.sidebar-section.templates-section {
    flex-shrink: 0;
    max-height: 40%;
    border-top: 1px solid var(--border-color);
}

.sidebar-header {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #f0f0f0;
}

.sidebar-header .section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

.sidebar-header .btn-new-session {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.sidebar-header .btn-new-session:hover {
    background-color: var(--primary-dark);
}

.session-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.session-item {
    padding: 10px 16px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.session-item:hover {
    background-color: #fafafa;
}

.session-item.active {
    background-color: var(--primary-bg);
    border-left-color: var(--primary-color);
}

.session-item .session-icon {
    color: var(--text-tertiary);
    font-size: 14px;
    flex-shrink: 0;
}

.session-item.active .session-icon {
    color: var(--primary-color);
}

.session-item .session-title {
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.session-item .session-time {
    font-size: 11px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.template-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.template-search {
    padding: 6px 12px;
}

.template-search-input {
    width: 100%;
    padding: 6px 10px;
    font-size: 12px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s;
}

.template-search-input::placeholder {
    color: var(--text-tertiary);
}

.template-search-input:focus {
    border-color: var(--primary);
}

.template-item {
    padding: 8px 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.template-item:hover {
    background-color: #fafafa;
}

.template-item .template-name {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.template-item .template-desc {
    font-size: 12px;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================================
   主内容区域
   ============================================================ */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--bg-layout);
}

/* 对话区域 */
.chat-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-area::-webkit-scrollbar {
    width: 6px;
}

.chat-area::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}

.chat-area::-webkit-scrollbar-track {
    background-color: transparent;
}

/* 对话气泡 */
.message-bubble {
    max-width: 80%;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-bubble.user-message {
    align-self: flex-end;
    align-items: flex-end;
}

.message-bubble.assistant-message {
    align-self: flex-start;
    align-items: flex-start;
}

.message-bubble .message-role {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.message-bubble .role-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.message-bubble.user-message .role-avatar {
    background-color: var(--primary-color);
    color: #fff;
}

.message-bubble.assistant-message .role-avatar {
    background-color: var(--success-color);
    color: #fff;
}

.message-bubble .message-content {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
    box-shadow: var(--shadow-base);
}

.message-bubble.user-message .message-content {
    background-color: var(--primary-color);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.message-bubble.assistant-message .message-content {
    background-color: var(--bg-component);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid #f0f0f0;
}

/* 加载动画 */
.loading-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background-color: var(--bg-component);
    border-radius: 12px;
    border: 1px solid #f0f0f0;
    align-self: flex-start;
    box-shadow: var(--shadow-base);
}

.loading-dots {
    display: flex;
    gap: 4px;
}

.loading-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--primary-color);
    animation: dotPulse 1.4s infinite ease-in-out both;
}

.loading-dots .dot:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots .dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.loading-indicator .loading-text {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 全屏加载遮罩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(2px);
}

.loading-overlay .spinner-container {
    text-align: center;
}

.loading-overlay .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #f0f0f0;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay .overlay-text {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============================================================
   全局 Loading 状态（顶部进度条 + 按钮加载态）
   ============================================================ */
.global-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
    z-index: 4000;
    transform: translateX(-100%);
    animation: loading-bar 1s infinite linear;
}

@keyframes loading-bar {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 按钮 loading 态：禁用点击 + 半透明 + 旋转 spinner */
.btn-loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-loading::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
    margin-left: 6px;
    vertical-align: middle;
}

/* ============================================================
   SQL展示区
   ============================================================ */
.sql-display-card {
    background-color: var(--bg-component);
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    box-shadow: var(--shadow-base);
    overflow: visible;
    margin-top: 8px;
    width: 100%;
    max-width: 80%;
    align-self: flex-start;
}

.sql-display-card .card-header {
    background-color: #fafafa;
    padding: 10px 16px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sql-display-card .card-header .header-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sql-display-card .card-header .header-title .sql-badge {
    background-color: var(--primary-bg);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.sql-display-card .sql-code-block {
    margin: 0;
    padding: 16px;
    background-color: #1e1e1e;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
}

.sql-display-card .sql-code-block code {
    font-family: "Fira Code", "Consolas", "Monaco", "Courier New", monospace;
    color: #d4d4d4;
    background: transparent;
    white-space: pre;
}

.sql-display-card .sql-explanation {
    padding: 12px 16px;
    background-color: #fffbe6;
    border-top: 1px solid #ffe58f;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.sql-display-card .sql-explanation .explanation-label {
    font-weight: 600;
    color: var(--warning-color);
    margin-right: 4px;
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.sql-display-card .sql-explanation .explanation-label .toggle-icon {
    font-size: 10px;
    transition: transform 0.2s;
}

.sql-display-card .sql-explanation .explanation-label .toggle-icon.collapsed {
    transform: rotate(-90deg);
}

.sql-display-card .sql-explanation .explanation-content {
    margin-top: 6px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.2s ease;
}

.sql-display-card .sql-explanation .explanation-content.collapsed {
    max-height: 0 !important;
    opacity: 0;
    margin-top: 0;
}

.sql-display-card .sql-code-block {
    position: relative;
}

.sql-display-card .sql-code-block .btn-toggle-sql {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 11px;
    color: #aaa;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
}

.sql-display-card .sql-code-block .btn-toggle-sql:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.sql-display-card .sql-code-block.collapsed pre {
    max-height: 80px;
    overflow: hidden;
}

.sql-display-card .sql-code-block.collapsed::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(transparent, #2d2d2d);
    pointer-events: none;
}

.sql-display-card .card-actions {
    padding: 10px 16px;
    background-color: #fafafa;
    border-top: 1px solid #f0f0f0;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sql-display-card .card-actions .btn-action {
    padding: 4px 14px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: #fff;
    color: var(--text-primary);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.sql-display-card .card-actions .btn-action:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.sql-display-card .card-actions .btn-action.btn-execute {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.sql-display-card .card-actions .btn-action.btn-execute:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

.sql-display-card .card-actions .btn-action.btn-execute.executing {
    background-color: var(--text-tertiary);
    border-color: var(--text-tertiary);
    cursor: not-allowed;
}

/* 安全警告提示 */
.sql-safety-warning {
    padding: 8px 16px;
    background-color: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: 4px;
    font-size: 13px;
    color: var(--danger-color);
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sql-safety-info {
    padding: 8px 16px;
    background-color: #f6ffed;
    border: 1px solid #b7eb8f;
    border-radius: 4px;
    font-size: 13px;
    color: var(--success-color);
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================================
   查询结果区
   ============================================================ */
.result-card {
    background-color: var(--bg-component);
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    box-shadow: var(--shadow-base);
    overflow: hidden;
    margin-top: 12px;
    width: 100%;
    max-width: 80%;
    align-self: flex-start;
}

.result-card .result-header {
    padding: 10px 16px;
    background-color: #fafafa;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.result-card .result-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.result-card .result-meta {
    font-size: 12px;
    color: var(--text-tertiary);
}

.result-card .result-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.result-card .btn-close-result {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 14px;
    transition: all 0.2s;
}

.result-card .btn-close-result:hover {
    background-color: #f0f0f0;
    color: var(--text-primary);
}

.result-card .result-meta .meta-item {
    margin-right: 12px;
}

.result-card .result-toolbar {
    padding: 8px 16px;
    background-color: #fafafa;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.result-card .toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.result-card .toolbar-group .toolbar-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-right: 4px;
}

.result-card .btn-toolbar {
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: #fff;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.result-card .btn-toolbar:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.result-card .btn-toolbar.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.result-card .btn-export {
    background-color: #fff;
    color: var(--success-color);
    border-color: var(--success-color);
}

.result-card .btn-export:hover {
    background-color: var(--success-color);
    color: #fff;
}

/* 结果表格 */
.result-table-wrapper {
    overflow-x: auto;
    max-height: 400px;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.result-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.result-table thead th {
    background-color: #fafafa;
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    position: relative;
}

.result-table thead th:hover {
    background-color: #f0f0f0;
}

.result-table thead th .sort-icon {
    margin-left: 4px;
    color: var(--text-tertiary);
    font-size: 11px;
}

.result-table thead th.sort-asc .sort-icon::after {
    content: " \25B2";
    color: var(--primary-color);
}

.result-table thead th.sort-desc .sort-icon::after {
    content: " \25BC";
    color: var(--primary-color);
}

.result-table tbody td {
    padding: 8px 14px;
    border-bottom: 1px solid #f0f0f0;
    color: var(--text-primary);
    white-space: nowrap;
}

/* 斑马纹 */
.result-table tbody tr:nth-child(even) {
    background-color: #fafafa;
}

/* hover效果 */
.result-table tbody tr:hover {
    background-color: var(--primary-bg);
}

.result-table .cell-sensitive {
    color: var(--text-tertiary);
    font-style: italic;
}

.result-table .cell-number {
    text-align: right;
    font-family: "Fira Code", "Consolas", monospace;
}

/* 图表容器 */
.chart-container {
    padding: 16px;
    height: 350px;
    position: relative;
}

.chart-container canvas {
    max-height: 320px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-tertiary);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state .empty-title {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state .empty-desc {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* 错误提示 */
.error-alert {
    background-color: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: 8px;
    padding: 16px 20px;
    margin: 8px 0;
    font-size: 13px;
    color: var(--danger-color);
}

.error-alert .error-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.error-alert .error-icon {
    flex-shrink: 0;
    font-size: 18px;
}

.error-alert .error-title {
    font-weight: 600;
    font-size: 14px;
}

.error-alert .error-body {
    background-color: #fff;
    border: 1px solid #ffccc7;
    border-radius: 4px;
    padding: 8px 12px;
    margin: 8px 0;
    font-family: "Consolas", "Monaco", monospace;
    font-size: 12px;
    color: #cf1322;
    word-break: break-all;
}

.error-alert .error-tips {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #ffccc7;
}

.error-alert .error-tip-label {
    font-weight: 600;
    color: #8c8c8c;
    font-size: 12px;
}

.error-alert .error-tip-list {
    margin: 4px 0 0 16px;
    padding: 0;
    color: #8c8c8c;
    font-size: 12px;
    line-height: 1.8;
}

/* ============================================================
   底部输入区
   ============================================================ */
.input-area {
    padding: 12px 24px 16px;
    background-color: var(--bg-component);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.input-area .input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.input-area .datasource-select {
    flex-shrink: 0;
    width: 180px;
}

.input-area .datasource-select .form-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.input-area .datasource-select .form-select {
    font-size: 13px;
    height: 38px;
}

.input-area .input-field-wrapper {
    flex: 1;
    position: relative;
}

.input-area .input-field {
    width: 100%;
    min-height: 38px;
    max-height: 120px;
    padding: 8px 48px 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
    line-height: 1.5;
}

.input-area .input-field:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.15);
}

.input-area .btn-send {
    position: absolute;
    right: 6px;
    bottom: 6px;
    width: 32px;
    height: 26px;
    border: none;
    border-radius: 4px;
    background-color: var(--primary-color);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
    padding: 0;
}

.input-area .btn-send:hover {
    background-color: var(--primary-dark);
}

.input-area .btn-send:disabled {
    background-color: var(--text-tertiary);
    cursor: not-allowed;
}

.input-area .input-hint {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 6px;
    text-align: center;
}

/* ============================================================
   欢迎页
   ============================================================ */
.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.welcome-screen .welcome-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #fff;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.3);
}

.welcome-screen .welcome-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.welcome-screen .welcome-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    line-height: 1.6;
}

.welcome-screen .example-queries {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-width: 600px;
    width: 100%;
}

.welcome-screen .example-query {
    padding: 12px 16px;
    background-color: var(--bg-component);
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
    font-size: 13px;
    color: var(--text-secondary);
}

.welcome-screen .example-query:hover {
    border-color: var(--primary-color);
    background-color: var(--primary-bg);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-base);
}

/* ============================================================
   管理后台样式
   ============================================================ */
.admin-container {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.admin-tabs .nav-tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
}

.admin-tabs .nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.2s;
}

.admin-tabs .nav-tabs .nav-link:hover {
    color: var(--primary-color);
}

.admin-tabs .nav-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background-color: transparent;
}

.admin-card {
    background-color: var(--bg-component);
    border-radius: 8px;
    box-shadow: var(--shadow-base);
    padding: 24px;
    margin-bottom: 24px;
}

.admin-card .card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.admin-toolbar .form-control,
.admin-toolbar .form-select {
    font-size: 13px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.admin-table thead th {
    background-color: #fafafa;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.admin-table tbody td {
    padding: 10px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: var(--text-primary);
}

.admin-table tbody tr:hover {
    background-color: #fafafa;
}

.admin-table .action-btn {
    padding: 2px 8px;
    font-size: 12px;
    margin-right: 4px;
    cursor: pointer;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    transition: all 0.2s;
}

.admin-table .action-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.admin-table .action-btn.btn-danger:hover {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.status-tag.tag-active {
    background-color: #f6ffed;
    color: var(--success-color);
    border: 1px solid #b7eb8f;
}

.status-tag.tag-inactive {
    background-color: #fff2f0;
    color: var(--danger-color);
    border: 1px solid #ffccc7;
}

.status-tag.tag-low {
    background-color: #f6ffed;
    color: var(--success-color);
}

.status-tag.tag-medium {
    background-color: #fffbe6;
    color: var(--warning-color);
}

.status-tag.tag-high {
    background-color: #fff2f0;
    color: var(--danger-color);
}

.status-tag.tag-blocked {
    background-color: #ffccc7;
    color: var(--danger-color);
    font-weight: 600;
}

/* 风险等级标签 */
.risk-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.risk-badge.risk-low {
    background-color: #f6ffed;
    color: var(--success-color);
}

.risk-badge.risk-medium {
    background-color: #fffbe6;
    color: var(--warning-color);
}

.risk-badge.risk-high {
    background-color: #fff2f0;
    color: var(--danger-color);
}

.risk-badge.risk-blocked {
    background-color: #ffccc7;
    color: var(--danger-color);
}

/* ============================================================
   Modal 编辑框
   ============================================================ */
.modal-content {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-elevated);
}

.modal-header {
    border-bottom: 1px solid #f0f0f0;
    padding: 16px 24px;
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    border-top: 1px solid #f0f0f0;
    padding: 12px 24px;
}

/* SQL编辑框 */
.sql-editor {
    width: 100%;
    min-height: 160px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: "Fira Code", "Consolas", "Monaco", monospace;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
}

.sql-editor:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.15);
}

/* ============================================================
   Toast 提示
   ============================================================ */
.toast-container {
    position: fixed;
    top: 70px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast-message {
    min-width: 280px;
    max-width: 400px;
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: var(--shadow-elevated);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-message.toast-success {
    background-color: #f6ffed;
    border: 1px solid #b7eb8f;
    color: var(--success-color);
}

.toast-message.toast-error {
    background-color: #fff2f0;
    border: 1px solid #ffccc7;
    color: var(--danger-color);
}

.toast-message.toast-warning {
    background-color: #fffbe6;
    border: 1px solid #ffe58f;
    color: var(--warning-color);
}

.toast-message.toast-info {
    background-color: var(--primary-bg);
    border: 1px solid #91d5ff;
    color: var(--primary-color);
}

/* ============================================================
   Prism.js 代码高亮主题（暗色）
   ============================================================ */
pre[class*="language-"] {
    margin: 0;
    background: #1e1e1e !important;
    border-radius: 0;
    font-size: 13px;
}

code[class*="language-"] {
    font-family: "Fira Code", "Consolas", "Monaco", "Courier New", monospace !important;
    text-shadow: none !important;
}

.token.keyword {
    color: #569cd6 !important;
}

.token.function {
    color: #dcdcaa !important;
}

.token.string {
    color: #ce9178 !important;
}

.token.number {
    color: #b5cea8 !important;
}

.token.comment {
    color: #6a9955 !important;
    font-style: italic;
}

.token.operator {
    color: #d4d4d4 !important;
}

.token.punctuation {
    color: #d4d4d4 !important;
}

.token.builtin {
    color: #4ec9b0 !important;
}

.token.boolean {
    color: #569cd6 !important;
}

/* ============================================================
   响应式布局适配
   ============================================================ */
@media (max-width: 1200px) {
    .app-sidebar {
        width: 240px;
    }

    .input-area .datasource-select {
        width: 150px;
    }
}

@media (max-width: 992px) {
    .app-sidebar {
        width: 220px;
    }

    .welcome-screen .example-queries {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }

    .app-sidebar {
        width: 100%;
        height: auto;
        max-height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .sidebar-section.templates-section {
        max-height: 50%;
    }

    .message-bubble {
        max-width: 95%;
    }

    .sql-display-card,
    .result-card {
        max-width: 95%;
    }

    .input-area .input-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .input-area .datasource-select {
        width: 100%;
    }

    .input-area .btn-send {
        position: relative;
        right: auto;
        bottom: auto;
        width: 100%;
        height: 38px;
        margin-top: 8px;
    }

    .admin-container {
        padding: 12px;
    }

    .admin-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 576px) {
    .app-navbar {
        padding: 0 12px;
    }

    .app-navbar .navbar-brand {
        font-size: 15px;
    }

    .app-navbar .btn-admin-link {
        display: none;
    }

    .chat-area {
        padding: 12px;
    }

    .input-area {
        padding: 8px 12px 12px;
    }
}

/* ============================================================
   登录页面样式（V4-10 修复：错误提示样式）
   ============================================================ */
.login-body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--bg-component);
    border-radius: 12px;
    box-shadow: var(--shadow-elevated);
    padding: 40px 32px 32px;
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo {
    font-size: 48px;
    margin-bottom: 8px;
}

.login-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.login-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
    margin: 0;
}

.login-form {
    margin-top: 8px;
}

.login-form .form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.login-form .form-control {
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 14px;
}

.login-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.login-toggle-pwd {
    border-radius: 0 6px 6px 0;
}

/* V4-10 修复：登录错误提示样式（红色警示框） */
.login-error {
    display: none;
    background-color: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--danger-color);
    line-height: 1.5;
    text-align: center;
    animation: loginErrorShake 0.4s ease;
}

@keyframes loginErrorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.login-submit-btn {
    margin-top: 8px;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.login-submit-btn:hover:not(:disabled) {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* ============================================================
   SQL 执行确认弹窗样式（SQL执行中断机制）
   ============================================================ */

/* SQL代码块容器 */
.sql-confirm-code-wrapper {
    border: 1px solid #d9d9d9;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 8px;
}

/* 代码块头部 */
.sql-confirm-code-header {
    background-color: #fafafa;
    padding: 8px 12px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sql-confirm-code-header .sql-badge {
    background-color: var(--primary-bg);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

/* SQL代码块（暗色主题，与聊天中的SQL卡片保持一致） */
.sql-confirm-code-block {
    margin: 0;
    padding: 16px;
    background-color: #1e1e1e;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
    max-height: 320px;
    overflow-y: auto;
}

.sql-confirm-code-block code {
    font-family: "Fira Code", "Consolas", "Monaco", "Courier New", monospace;
    color: #d4d4d4;
    background: transparent;
    white-space: pre;
}

/* SQL解释区域 */
.sql-confirm-explanation {
    padding: 10px 14px;
    background-color: #fffbe6;
    border: 1px solid #ffe58f;
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.sql-confirm-explanation .explanation-label {
    font-weight: 600;
    color: var(--warning-color);
    margin-right: 4px;
}

/* 弹窗内安全检查区域 */
#sqlConfirmModal .badge {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
}

/* 弹窗确认按钮（绿色，突出执行动作） */
#sqlConfirmModal .btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    font-weight: 500;
}

#sqlConfirmModal .btn-success:hover:not(:disabled) {
    opacity: 0.9;
}

/* 弹窗body滚动优化 */
#sqlConfirmModal .modal-body {
    max-height: 60vh;
    overflow-y: auto;
}

.login-tips {
    text-align: center;
    margin-top: 20px;
    color: var(--text-tertiary);
}

.login-footer {
    text-align: center;
    margin-top: 16px;
    color: var(--text-tertiary);
}


/* ============================================================
   工具类
   ============================================================ */
.text-hidden {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.flex-grow {
    flex-grow: 1;
}

.cursor-pointer {
    cursor: pointer;
}

.text-primary-custom {
    color: var(--primary-color) !important;
}

.bg-primary-custom {
    background-color: var(--primary-color) !important;
}

.scrollbar-thin::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.scrollbar-thin::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}

.scrollbar-thin::-webkit-scrollbar-track {
    background-color: transparent;
}

/* ============================================================
   分页控件样式
   ============================================================ */
.pagination-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 16px;
    background-color: #fafafa;
    border-top: 1px solid #f0f0f0;
}

.pagination-container .pagination-info {
    font-size: 12px;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.pagination-container .pagination-controls {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.pagination-btn {
    min-width: 32px;
    height: 28px;
    padding: 0 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: #fff;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

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

.pagination-btn.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    cursor: default;
    opacity: 1;
}

.pagination-ellipsis {
    padding: 0 4px;
    color: var(--text-tertiary);
    font-size: 12px;
    user-select: none;
}

.pagination-total {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-left: 8px;
    white-space: nowrap;
}

/* ============================================================
   反馈按钮样式（点赞/点踩）
   ============================================================ */
.btn-feedback {
    width: 32px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: #fff;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

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

.btn-feedback.btn-like.active {
    color: var(--success-color);
    border-color: var(--success-color);
    background-color: #f6ffed;
}

.btn-feedback.btn-dislike:hover {
    border-color: var(--warning-color);
    color: var(--warning-color);
    background-color: #fffbe6;
}

.btn-feedback.btn-dislike.active {
    color: var(--danger-color);
    border-color: var(--danger-color);
    background-color: #fff2f0;
}

/* 操作按钮分隔符 */
.action-divider {
    display: inline-block;
    width: 1px;
    height: 20px;
    background-color: var(--border-color);
    margin: 0 4px;
}

/* ============================================================
   会话删除按钮样式
   ============================================================ */
.session-delete-btn {
    width: 22px;
    height: 22px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background-color: transparent;
    color: var(--text-tertiary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0.6;
}

.session-item:hover .session-delete-btn {
    opacity: 1;
}

.session-delete-btn:hover {
    background-color: #fff2f0;
    color: var(--danger-color);
    opacity: 1;
}

.session-delete-btn i {
    line-height: 1;
}

/* ============================================================
   Modal 弹窗额外样式
   ============================================================ */
.modal-title i {
    margin-right: 6px;
    color: var(--primary-color);
}

.modal-body .form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.modal-body .form-control[readonly] {
    background-color: #f5f5f5;
    color: var(--text-secondary);
    cursor: default;
}

.modal-body .text-danger {
    color: var(--danger-color) !important;
}

/* 反馈弹窗中的SQL编辑器复用 sql-editor 样式 */
#fbCorrectedSql.sql-editor {
    min-height: 120px;
    font-size: 12px;
}

/* ============================================================
   批量选择相关样式
   ============================================================ */

/* 批量操作工具栏 */
.batch-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: #fafafa;
    border-bottom: 1px solid var(--border-color, #e8e8e8);
    font-size: 12px;
}

.batch-toolbar .select-all-label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: var(--text-secondary, #666);
    user-select: none;
}

.batch-toolbar .select-all-label input[type="checkbox"] {
    margin: 0;
}

.batch-toolbar .batch-count {
    color: var(--primary-color, #1890ff);
    font-weight: 500;
}

.batch-toolbar .btn-batch-delete {
    margin-left: auto;
    padding: 2px 10px;
    font-size: 12px;
}

/* 会话列表中的复选框 */
.session-checkbox {
    flex-shrink: 0;
    margin-right: 6px;
    cursor: pointer;
}

.session-item {
    display: flex;
    align-items: center;
}

.session-item .session-icon {
    margin-right: 6px;
}

.session-item .session-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 表格行中的复选框 */
.table-checkbox {
    cursor: pointer;
}

/* ============================================================
   折叠/展开相关样式
   ============================================================ */

/* 可折叠的侧边栏区域标题 */
.collapsible-header {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background 0.15s;
}

.collapsible-header:hover {
    background: rgba(0, 0, 0, 0.04);
}

.collapsible-header .collapse-arrow {
    display: inline-block;
    transition: transform 0.2s ease;
    font-size: 10px;
    color: var(--text-tertiary, #999);
}

.collapsible-header .collapse-arrow.collapsed {
    transform: rotate(-90deg);
}

.collapsible-header .header-title {
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary, #333);
}

.collapsible-header .header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 折叠内容区域 */
.collapsible-content {
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.collapsible-content.collapsed {
    max-height: 0 !important;
}

/* ============================================================
   分页控件增强样式（补充已有样式）
   ============================================================ */

.pagination-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: #fafafa;
    border-top: 1px solid var(--border-color, #e8e8e8);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 8px;
}

.pagination-info {
    color: var(--text-secondary, #666);
    white-space: nowrap;
}

.pagination-info strong {
    color: var(--text-primary, #333);
    margin: 0 2px;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    border: 1px solid var(--border-color, #d9d9d9);
    border-radius: 4px;
    background: #fff;
    color: var(--text-primary, #333);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.pagination-btn:hover:not(:disabled):not(.active) {
    color: var(--primary-color, #1890ff);
    border-color: var(--primary-color, #1890ff);
}

.pagination-btn.active {
    background: var(--primary-color, #1890ff);
    border-color: var(--primary-color, #1890ff);
    color: #fff;
    font-weight: 500;
}

.pagination-btn:disabled {
    color: #d9d9d9;
    cursor: not-allowed;
    background: #f5f5f5;
}

.pagination-btn.pagination-ellipsis {
    border: none;
    background: transparent;
    cursor: default;
    color: var(--text-tertiary, #999);
}

.pagination-btn.pagination-ellipsis:hover {
    color: var(--text-tertiary, #999);
    border-color: transparent;
}

.pagination-size-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-secondary, #666);
}

.pagination-size-selector select {
    padding: 2px 6px;
    border: 1px solid var(--border-color, #d9d9d9);
    border-radius: 4px;
    font-size: 12px;
    background: #fff;
    cursor: pointer;
}

/* ============================================================
   筛选栏样式
   ============================================================ */

.admin-filter-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #fafafa;
    border-bottom: 1px solid var(--border-color, #e8e8e8);
    flex-wrap: wrap;
}

.admin-filter-bar .filter-input {
    width: 160px;
    height: 32px;
    font-size: 13px;
}

.admin-filter-bar .filter-input.form-select {
    width: 140px;
}

.admin-filter-bar .btn {
    height: 32px;
    font-size: 13px;
    padding: 0 12px;
    white-space: nowrap;
}

/* ============================================================
   工具栏样式
   ============================================================ */

.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #fff;
    border-bottom: 1px solid var(--border-color, #e8e8e8);
}

.admin-toolbar .btn {
    font-size: 13px;
    padding: 4px 12px;
}

/* ============================================================
   防重复提交按钮样式
   ============================================================ */

.btn-sending {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-sending::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -7px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
}

@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   响应式调整
   ============================================================ */

@media (max-width: 768px) {
    .pagination-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .admin-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .admin-filter-bar .filter-input {
        width: 100%;
    }
    
    .batch-toolbar {
        flex-wrap: wrap;
    }
}