/* 基础样式 */
:root {
    --bg-color: #f8f9fa;
    --text-color: #2c3e50;
    --border-color: #e1e4e8;
    --primary-color: #4a90e2;
    --primary-hover: #357abd;
    --danger-color: #e85a5a;
    --danger-hover: #d64545;
    --success-color: #52c41a;
    --warning-color: #faad14;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 { color: #1a1a1a; margin: 24px 0 16px; line-height: 1.3; font-weight: 600; }
h2 { font-size: 1.5rem; margin-top: 0; }
h2 small { font-size: 0.75em; color: #8c8c8c; font-weight: normal; margin-left: 8px; }
h3 { font-size: 1.125rem; margin: 0 0 12px; }

.d-flex { display: flex; gap: 15px; align-items: flex-start; }
.col { flex: 1; }

/* 导航 */
.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    margin-bottom: 24px;
    padding: 6px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    padding: 4px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 14px;
}

.main-nav a:hover { 
    background-color: rgba(74, 144, 226, 0.08); 
    color: var(--primary-color);
}
.main-nav a.active { 
    background-color: var(--primary-color); 
    color: white; 
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.3);
}

.theme-toggle {
    margin-left: 16px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    transition: all 0.2s ease;
    font-size: 18px;
}

.theme-toggle:hover {
    background: var(--bg-color);
    border-color: var(--primary-color);
}

/* 表单 */
#mdForm { padding-bottom: 30px; }
.form-control { margin-bottom: 16px; }
.form-group { display: flex; }
.form-group input { flex: 1; border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.form-group button { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

label { font-size: 0.875rem; margin-bottom: 6px; display: block; font-weight: 600; color: #595959; }
.checkbox-group label, .checkbox-label { font-weight: normal; display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }

input[type="text"], input[type="password"], input[type="datetime-local"],
textarea, select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-sizing: border-box;
    background: var(--input-bg);
    color: var(--text-color);
    transition: all 0.2s ease;
    font-size: 14px;
}

input[type="text"]:hover, input[type="password"]:hover, input[type="datetime-local"]:hover,
textarea:hover, select:hover {
    border-color: #c4c4c4;
}

input:focus, textarea:focus, select:focus { 
    outline: none; 
    border-color: var(--primary-color); 
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}
input#title { 
    font-size: 1.25rem; 
    font-weight: 600; 
    padding: 12px 16px;
    border-color: #d9d9d9;
}

textarea {
    min-height: 300px;
    resize: vertical;
    font-family: 'SF Mono', 'Monaco', 'Consolas', 'Liberation Mono', monospace;
    font-size: 14px;
    line-height: 1.7;
}

/* 按钮 */
button, .btn {
    padding: 8px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.2);
}

button:hover, .btn:hover { 
    background: var(--primary-hover); 
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.3);
}
button:active, .btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(74, 144, 226, 0.2);
}
.btn.delete { background: var(--danger-color); box-shadow: 0 2px 4px rgba(232, 90, 90, 0.2); }
.btn.delete:hover { background: var(--danger-hover); box-shadow: 0 4px 8px rgba(232, 90, 90, 0.3); }
.btn.sync { background: var(--warning-color); box-shadow: 0 2px 4px rgba(250, 173, 20, 0.2); }
.btn.sync:hover { background: #d48806; box-shadow: 0 4px 8px rgba(250, 173, 20, 0.3); }
button:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.form-actions {
    margin: 20px 0;
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 编辑器工具栏 */
.editor-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: linear-gradient(to bottom, #fafbfc, #f0f2f5);
    border-bottom: 1px solid var(--border-color);
}

.editor-toolbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.editor ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 4px;
}

.editor li span {
    display: block;
    padding: 6px 10px;
    font-size: 13px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.editor li span:hover { 
    background: rgba(74, 144, 226, 0.1); 
    color: var(--primary-color);
}
.editor li span:active {
    background: rgba(74, 144, 226, 0.2);
}

.editor-stats {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: #8c8c8c;
}

/* 预览切换按钮 */
.preview-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 13px;
    color: #595959;
    box-shadow: none;
}

.preview-toggle:hover {
    background: rgba(74, 144, 226, 0.08);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.preview-toggle.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.preview-icon {
    font-size: 14px;
}

/* 编辑器主体 */
.editor-body {
    padding: 0;
}

.editor-body textarea {
    width: 100%;
    height: 500px;
    min-height: 500px;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 16px;
    font-size: 14px;
    line-height: 1.7;
    resize: vertical;
}

.editor-body textarea:focus {
    outline: none;
    box-shadow: none;
}

/* 编辑器底部状态栏 */
.editor-footer {
    padding: 8px 16px;
    background: linear-gradient(to bottom, #f0f2f5, #fafbfc);
    border-top: 1px solid var(--border-color);
}

.editor-footer .editor-stats {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #8c8c8c;
}

/* 预览面板 */
.preview-panel {
    display: none;
    position: fixed;
    top: 80px;
    right: 24px;
    width: 680px;
    height: calc(100vh - 120px);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 100;
    overflow: hidden;
    animation: slideInRight 0.3s ease;
}

.preview-panel.show {
    display: flex;
    flex-direction: column;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: linear-gradient(to bottom, #fafbfc, #f0f2f5);
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    color: #595959;
    font-weight: 600;
}

.close-preview {
    width: 24px;
    height: 24px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    color: #8c8c8c;
    transition: all 0.2s ease;
    box-shadow: none;
}

.close-preview:hover {
    background: rgba(232, 90, 90, 0.1);
    color: var(--danger-color);
}

.preview-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    line-height: 1.8;
}

/* 编辑器主体 - 分栏布局 */
.editor-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.editor-pane, .preview-pane {
    min-width: 0;
}

.editor-pane textarea {
    height: 450px;
    min-height: 450px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.preview-pane {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.preview-content h1, .preview-content h2, .preview-content h3 { margin-top: 0; }
.preview-content pre {
    background: #f6f8fa;
    padding: 14px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    border: 1px solid #e1e4e8;
}
.preview-content code { font-family: 'SF Mono', 'Monaco', 'Consolas', monospace; font-size: 13px; }
.preview-content img { max-width: 100%; border-radius: var(--radius-sm); }
.preview-content table { border-collapse: collapse; width: 100%; }
.preview-content th, .preview-content td { border: 1px solid var(--border-color); padding: 10px; }
.preview-content blockquote {
    border-left: 4px solid var(--primary-color);
    margin: 0;
    padding-left: 16px;
    color: #595959;
}

/* 草稿状态 */
.draft-status {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
}
.draft-status.saved { color: var(--success-color); }

/* 筛选栏 */
.filter-bar {
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.filter-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-form input, .filter-form select {
    width: auto;
    min-width: 160px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-color);
    color: var(--text-color);
}

.filter-form input {
    flex: 1;
    min-width: 200px;
}

/* 批量操作 */
.batch-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

/* 文章列表 */
.article-list { 
    margin-top: 12px; 
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-md);
}

.article-item {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.article-item:hover { 
    box-shadow: var(--shadow-md); 
    border-color: #c4c4c4;
}

.article-item .d-flex {
    display: flex;
    align-items: center;
    gap: 12px;
}

.article-checkbox { 
    margin-right: 12px; 
    margin-top: 6px; 
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.article-header { 
    flex: 1; 
}

.article-header h3 { 
    margin: 0; 
    font-weight: 600; 
    font-size: 1rem; 
}

.article-header h3 a { 
    text-decoration: none; 
    color: var(--text-color); 
}

.article-header a:hover { 
    color: var(--primary-color); 
}

.article-meta {
    font-size: 13px;
    color: #8c8c8c;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.article-meta .date {
    color: var(--text-secondary);
}

.category, .tag {
    display: inline-block;
    background: #e6f7ff;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.tag { background: #f5f5f5; }

.article-meta .category,
.article-meta .tag {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
}

.article-meta .category {
    background: rgba(74, 144, 226, 0.1);
    color: var(--primary-color);
}

.article-meta .tag {
    background: rgba(111, 207, 151, 0.1);
    color: #6fcf97;
}

.sync-badge {
    font-size: 12px;
    margin-left: 8px;
}
.sync-badge.synced { color: var(--success-color); }
.sync-badge.unsynced { color: #bfbfbf; }

.article-actions {
    display: flex;
    gap: 8px;
}

.inline-form { display: inline; }

/* 标签输入 */
.tags-container { margin-bottom: 12px; }
.tags-input-container { position: relative; }
.tag-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    z-index: 10;
    display: none;
    max-height: 180px;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
}
.tag-suggestions.show { display: block; }
.tag-suggestion { padding: 8px 14px; cursor: pointer; transition: background 0.2s; }
.tag-suggestion:hover { background: #f5f5f5; }

.selected-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.tag {
    display: inline-flex;
    align-items: center;
    background: #f0f5ff;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 13px;
    border: 1px solid #d6e4ff;
    transition: all 0.2s ease;
}

.tag:hover {
    background: #e6f0ff;
}

.remove-tag { 
    margin-left: 6px; 
    cursor: pointer; 
    font-weight: bold;
    color: #8c8c8c;
    transition: color 0.2s;
}
.remove-tag:hover {
    color: var(--danger-color);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--card-bg);
    margin: 8% auto;
    padding: 24px;
    width: 80%;
    max-width: 800px;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.close { float: right; font-size: 28px; cursor: pointer; color: #8c8c8c; transition: color 0.2s; }
.close:hover { color: var(--danger-color); }

/* 登录 */
.login-container {
    max-width: 440px;
    margin: 80px auto;
    padding: 48px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.login-header {
    margin-bottom: 36px;
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.login-icon {
    font-size: 32px;
    line-height: 1;
}

.login-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.login-form {
    margin-top: 36px;
}

.login-form .form-control {
    margin-bottom: 20px;
}

.login-btn {
    width: 100%;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 15px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
    margin-top: 8px;
}

.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.4);
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.3);
}

.login-footer {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.login-footer p {
    margin: 0;
    font-size: 13px;
    color: #8c8c8c;
}

.error-message { 
    color: var(--danger-color); 
    background: rgba(232, 90, 90, 0.08);
    border: 1px solid rgba(232, 90, 90, 0.2);
    border-radius: var(--radius-sm);
    text-align: center; 
    font-size: 14px;
}

/* 消息提示 */
.message {
    padding: 14px 24px;
    margin: 10px 0;
    border-radius: var(--radius-md);
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    box-shadow: var(--shadow-md);
    font-size: 14px;
    font-weight: 500;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.message.success { 
    background: var(--success-color); 
    color: white; 
    border-color: #c3e6cb;
}

.message.error { 
    background: var(--danger-color); 
    color: white; 
    border-color: #f5c6cb;
}

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

/* 表单区域 */
.form-section {
    margin-bottom: 20px;
}

/* 侧边栏面板 */
.sidebar-panel {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.sidebar-panel h3 {
    margin: 0 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    color: var(--text-color);
}

/* 工具栏分隔符 */
.editor ul li.divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 6px;
    padding: 0;
    list-style: none;
}

/* 垂直排列的复选框组 */
.checkbox-group.vertical {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group.vertical label {
    margin-bottom: 0;
}

/* 分类和标签管理页面 */
.manage-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.tab-btn {
    padding: 10px 24px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #8c8c8c;
    transition: all 0.2s ease;
    margin-bottom: -2px;
    box-shadow: none;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(74, 144, 226, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: transparent;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.list-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.list-header h3 {
    margin: 0;
}

.count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
}

.empty-state {
    padding: 40px 20px;
    text-align: center;
    color: #8c8c8c;
    background: var(--card-bg);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
}

.empty-state p {
    margin: 0;
    font-size: 14px;
}

/* 分类列表 */
.category-list, .tag-list {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.category-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: #fafbfc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.category-item:hover {
    border-color: #c4c4c4;
    box-shadow: var(--shadow-sm);
}

.category-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.category-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
}

.category-slug {
    padding: 4px 10px;
    background: #f6f8fa;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: #595959;
}

.category-actions {
    display: flex;
    gap: 8px;
}

/* 标签列表 */
.tag-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #f0f5ff;
    border: 1px solid #d6e4ff;
    border-radius: 16px;
    transition: all 0.2s ease;
}

.tag-item:hover {
    background: #e6f0ff;
    border-color: var(--primary-color);
}

.tag-name {
    font-size: 14px;
    color: var(--text-color);
}

.tag-delete {
    width: 20px;
    height: 20px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: #8c8c8c;
    transition: all 0.2s ease;
    box-shadow: none;
}

.tag-delete:hover {
    background: rgba(232, 90, 90, 0.1);
    color: var(--danger-color);
}

/* 紧凑表单 */
.compact-form .form-control {
    margin-bottom: 16px;
}

.compact-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.compact-form input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-color);
    color: var(--text-color);
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: #8c8c8c;
}

.btn-block {
    width: 100%;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.2);
}

.btn-block:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.3);
}

/* 复选框美化 */
input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* 文本域滚动条美化 */
textarea::-webkit-scrollbar,
.preview-content::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

textarea::-webkit-scrollbar-track,
.preview-content::-webkit-scrollbar-track {
    background: transparent;
}

textarea::-webkit-scrollbar-thumb,
.preview-content::-webkit-scrollbar-thumb {
    background: #d9d9d9;
    border-radius: 4px;
}

textarea::-webkit-scrollbar-thumb:hover,
.preview-content::-webkit-scrollbar-thumb:hover {
    background: #bfbfbf;
}

/* 选择框美化 */
select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23595959' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

select:hover {
    border-color: var(--primary-color);
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
}

/* 焦点环 */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 响应式 */
@media screen and (min-width: 768px) {
    .row { display: flex; gap: 24px; }
    .col-8 { width: 68%; }
    .col-2 { width: 32%; }
}

@media screen and (max-width: 1200px) {
    .preview-panel {
        width: 600px;
    }
}

@media screen and (max-width: 1024px) {
    .col-8 { width: 65%; }
    .col-2 { width: 35%; }
    .preview-panel {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        z-index: 1000;
        border-radius: 0;
        margin: 0;
    }
}

@media screen and (max-width: 900px) {
    .col-8, .col-2 { width: 100%; }
    .row { flex-direction: column; }
    .main-nav {
        margin-left: -16px;
        margin-right: -16px;
        padding-left: 16px;
        padding-right: 16px;
    }
    .nav-links {
        gap: 6px;
    }
    .main-nav a {
        padding: 6px 12px;
        font-size: 13px;
    }
    .container {
        padding: 0 16px;
    }
    .sidebar-panel {
        margin-top: 20px;
    }
    .editor-toolbar {
        flex-wrap: wrap;
        gap: 10px;
    }
    .editor-toolbar-right {
        width: 100%;
        justify-content: space-between;
        margin-top: 8px;
    }
    .editor-body textarea {
        height: 400px;
        min-height: 400px;
    }
}

@media screen and (max-width: 600px) {
    .main-nav {
        flex-direction: column;
        gap: 12px;
    }
    .nav-links {
        width: 100%;
        justify-content: center;
    }
    .nav-actions {
        width: 100%;
        justify-content: center;
    }
    h2 {
        font-size: 1.25rem;
    }
    .filter-form {
        flex-direction: column;
    }
    .filter-form input,
    .filter-form select,
    .filter-form button {
        width: 100%;
    }
    .batch-actions {
        flex-wrap: wrap;
    }
    .article-item {
        padding: 12px 16px;
    }
    .article-actions {
        margin-top: 10px;
        width: 100%;
        justify-content: flex-end;
    }
    .editor-body textarea {
        height: 350px;
        min-height: 350px;
    }
}

/* 深色模式 */
body.dark-mode {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --border-color: #30363d;
    --card-bg: #161b22;
    --input-bg: #0d1117;
}

body.dark-mode h1, body.dark-mode h2, body.dark-mode h3 { color: #f0f6fc; }
body.dark-mode .preview-header { background: #21262d; }
body.dark-mode .preview-content pre { background: #21262d; border-color: #30363d; }
body.dark-mode .category { background: #1f3a5f; }
body.dark-mode .tag { background: #2d333b; border-color: #444c56; }
body.dark-mode .editor-stats { color: #8b949e; }
body.dark-mode .article-meta { color: #8b949e; }
body.dark-mode label { color: #8b949e; }
body.dark-mode .preview-header { color: #8b949e; }

/* 深色模式 - 分类和标签管理 */
body.dark-mode .category-item {
    background: #21262d;
    border-color: #30363d;
}

body.dark-mode .category-item:hover {
    border-color: #484f58;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

body.dark-mode .category-name {
    color: #f0f6fc;
}

body.dark-mode .category-slug {
    background: #30363d;
    color: #8b949e;
}

body.dark-mode .tag-item {
    background: #1c2128;
    border-color: #373e47;
}

body.dark-mode .tag-item:hover {
    background: #262c34;
    border-color: #4a90e2;
}

body.dark-mode .tag-name {
    color: #f0f6fc;
}

body.dark-mode .tag-delete {
    color: #8b949e;
}

body.dark-mode .tag-delete:hover {
    background: rgba(248, 81, 73, 0.15);
    color: #f85149;
}

body.dark-mode .empty-state {
    background: #21262d;
    border-color: #30363d;
    color: #8b949e;
}

body.dark-mode .tab-btn {
    color: #8b949e;
}

body.dark-mode .tab-btn:hover {
    color: #58a6ff;
    background: rgba(88, 166, 255, 0.1);
}

body.dark-mode .tab-btn.active {
    color: #58a6ff;
    border-bottom-color: #58a6ff;
}

/* 深色模式 - 编辑器工具栏和底部状态栏 */
body.dark-mode .editor-toolbar {
    background: linear-gradient(to bottom, #21262d, #161b22);
    border-bottom-color: #30363d;
}

body.dark-mode .editor-footer {
    background: linear-gradient(to bottom, #161b22, #21262d);
    border-top-color: #30363d;
}

body.dark-mode .editor-footer .editor-stats {
    color: #8b949e;
}

body.dark-mode .preview-toggle {
    color: #8b949e;
    border-color: #30363d;
}

body.dark-mode .preview-toggle:hover {
    background: rgba(88, 166, 255, 0.1);
    border-color: #58a6ff;
    color: #58a6ff;
}

body.dark-mode .preview-toggle.active {
    background: #238636;
    border-color: #238636;
    color: white;
}

/* 深色模式 - 登录页面 */
body.dark-mode .login-container {
    background: #161b22;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

body.dark-mode .login-title {
    color: #f0f6fc;
}

body.dark-mode .login-subtitle {
    color: #8b949e;
}

body.dark-mode .error-message {
    background: rgba(248, 81, 73, 0.15);
    border: 1px solid #f85149;
    color: #f85149;
}

body.dark-mode .theme-toggle-login {
    background: #21262d;
    border-color: #30363d;
}

body.dark-mode .theme-toggle-login:hover {
    background: #30363d;
    border-color: #58a6ff;
}

body.dark-mode .login-footer {
    border-top-color: #30363d;
}

body.dark-mode .login-footer p {
    color: #8b949e;
}

/* 系统深色模式 */
@media (prefers-color-scheme: dark) {
    body:not(.light-mode) {
        --bg-color: #0d1117;
        --text-color: #c9d1d9;
        --border-color: #30363d;
        --card-bg: #161b22;
        --input-bg: #0d1117;
    }
    
    body:not(.light-mode) h1, body:not(.light-mode) h2, body:not(.light-mode) h3 { color: #f0f6fc; }
    body:not(.light-mode) .preview-header { background: #21262d; }
    body:not(.light-mode) .preview-content pre { background: #21262d; border-color: #30363d; }
    body:not(.light-mode) .category { background: #1f3a5f; }
    body:not(.light-mode) .tag { background: #2d333b; border-color: #444c56; }
    body:not(.light-mode) .editor-stats { color: #8b949e; }
    body:not(.light-mode) .article-meta { color: #8b949e; }
    body:not(.light-mode) label { color: #8b949e; }
    body:not(.light-mode) .preview-header { color: #8b949e; }
    
    /* 系统深色模式 - 分类和标签管理 */
    body:not(.light-mode) .category-item {
        background: #21262d;
        border-color: #30363d;
    }
    
    body:not(.light-mode) .category-item:hover {
        border-color: #484f58;
        box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    }
    
    body:not(.light-mode) .category-name {
        color: #f0f6fc;
    }
    
    body:not(.light-mode) .category-slug {
        background: #30363d;
        color: #8b949e;
    }
    
    body:not(.light-mode) .tag-item {
        background: #1c2128;
        border-color: #373e47;
    }
    
    body:not(.light-mode) .tag-item:hover {
        background: #262c34;
        border-color: #4a90e2;
    }
    
    body:not(.light-mode) .tag-name {
        color: #f0f6fc;
    }
    
    body:not(.light-mode) .tag-delete {
        color: #8b949e;
    }
    
    body:not(.light-mode) .tag-delete:hover {
        background: rgba(248, 81, 73, 0.15);
        color: #f85149;
    }
    
    body:not(.light-mode) .empty-state {
        background: #21262d;
        border-color: #30363d;
        color: #8b949e;
    }
    
    body:not(.light-mode) .tab-btn {
        color: #8b949e;
    }
    
    body:not(.light-mode) .tab-btn:hover {
        color: #58a6ff;
        background: rgba(88, 166, 255, 0.1);
    }
    
    body:not(.light-mode) .tab-btn.active {
        color: #58a6ff;
        border-bottom-color: #58a6ff;
    }
    
    /* 系统深色模式 - 编辑器工具栏和底部状态栏 */
    body:not(.light-mode) .editor-toolbar {
        background: linear-gradient(to bottom, #21262d, #161b22);
        border-bottom-color: #30363d;
    }
    
    body:not(.light-mode) .editor-footer {
        background: linear-gradient(to bottom, #161b22, #21262d);
        border-top-color: #30363d;
    }
    
    body:not(.light-mode) .editor-footer .editor-stats {
        color: #8b949e;
    }
    
    body:not(.light-mode) .preview-toggle {
        color: #8b949e;
        border-color: #30363d;
    }
    
    body:not(.light-mode) .preview-toggle:hover {
        background: rgba(88, 166, 255, 0.1);
        border-color: #58a6ff;
        color: #58a6ff;
    }
    
    body:not(.light-mode) .preview-toggle.active {
        background: #238636;
        border-color: #238636;
        color: white;
    }
    
    /* 系统深色模式 - 登录页面 */
    body:not(.light-mode) .login-container {
        background: #161b22;
        box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    }
    
    body:not(.light-mode) .login-title {
        color: #f0f6fc;
    }
    
    body:not(.light-mode) .login-subtitle {
        color: #8b949e;
    }
    
    body:not(.light-mode) .error-message {
        background: rgba(248, 81, 73, 0.15);
        border: 1px solid #f85149;
        color: #f85149;
    }
    
    body:not(.light-mode) .theme-toggle-login {
        background: #21262d;
        border-color: #30363d;
    }
    
    body:not(.light-mode) .theme-toggle-login:hover {
        background: #30363d;
        border-color: #58a6ff;
    }
    
    body:not(.light-mode) .login-footer {
        border-top-color: #30363d;
    }
    
    body:not(.light-mode) .login-footer p {
        color: #8b949e;
    }
}

/* 目录选择器 */
.path-selector {
    padding: 6px 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-color);
    transition: all 0.2s ease;
    min-width: 100px;
}

.path-selector:hover {
    border-color: var(--primary-color);
}

.path-selector:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}



.tab-btn {
    padding: 8px 20px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: var(--bg-color);
    color: var(--text-color);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.row {
    display: flex;
    gap: 24px;
}

.col-8 {
    flex: 1;
}

.col-2 {
    width: 300px;
    flex-shrink: 0;
}

.list-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.list-header h3 {
    margin: 0;
}

.count-badge {
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 13px;
}

.category-items,
.tag-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-item,
.tag-item {
    background: var(--card-bg);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-info {
    display: flex;
    gap: 12px;
    align-items: center;
}

.category-name {
    font-weight: 500;
}

.category-slug {
    background: var(--bg-color);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

.tag-name {
    font-size: 14px;
}

.tag-delete {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 20px;
    padding: 0 8px;
    line-height: 1;
}

.tag-delete:hover {
    color: #e74c3c;
}

.sidebar-panel {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.sidebar-panel h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
}

.compact-form .form-control {
    margin-bottom: 16px;
}

.compact-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.compact-form input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-color);
    color: var(--text-color);
}

.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-block {
    width: 100%;
    padding: 10px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
}

.btn-block:hover {
    background: #3a7bc8;
}

/* 配置页面 */
.config-sections {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.config-section {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.config-section h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.config-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.info-item span {
    font-size: 14px;
    font-weight: 500;
}

.test-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.test-result {
    padding: 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-color);
}

.test-success {
    color: #27ae60;
}

.test-error {
    color: #e74c3c;
}

.test-error .hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.help-content {
    font-size: 14px;
    line-height: 1.6;
}

.help-content h4 {
    margin: 16px 0 8px 0;
    font-size: 14px;
}

.help-content h4:first-child {
    margin-top: 0;
}

.help-content p,
.help-content ol,
.help-content pre {
    margin: 8px 0;
}

.help-content code {
    background: var(--bg-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.help-content pre {
    background: var(--bg-color);
    padding: 12px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
}

.help-content pre code {
    background: transparent;
    padding: 0;
}

.help-content ol {
    padding-left: 20px;
}

.help-content a {
    color: var(--primary-color);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    margin: 0;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
}

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.message.success {
    background: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.message.error {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

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

/* 响应式 */
@media (max-width: 900px) {
    .row {
        flex-direction: column;
    }
    
    .col-2 {
        width: 100%;
    }
    
    .filter-form {
        flex-direction: column;
    }
    
    .filter-form input {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .article-item .d-flex {
        flex-direction: column;
    }
    
    .article-actions {
        width: 100%;
        justify-content: flex-end;
    }
}