/* ===== CSS变量定义 - Linear App风格配色 ===== */
:root {
    /* 主色调 - 更丰富的紫色系 */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;
    --primary-dark: #3730a3;
    --primary-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);

    /* 辅助色彩 */
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-orange: #f59e0b;
    --accent-teal: #14b8a6;

    /* 中性色调 */
    --gray-50: #fafbfc;
    --gray-100: #f4f6f8;
    --gray-200: #e8ecf0;
    --gray-300: #d1d9e0;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* 语义色彩 - 更鲜艳的配色 */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --success-gradient: linear-gradient(135deg, #10b981, #059669);
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --warning-gradient: linear-gradient(135deg, #f59e0b, #d97706);
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --danger-gradient: linear-gradient(135deg, #ef4444, #dc2626);
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    --info-gradient: linear-gradient(135deg, #3b82f6, #2563eb);

    /* 背景色 */
    --background-primary: #ffffff;
    --background-secondary: var(--gray-50);
    --background-tertiary: var(--gray-100);
    --background-overlay: rgba(0, 0, 0, 0.5);

    /* 文本色 */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-400);
    --text-inverse: #ffffff;

    /* 边框和分割线 */
    --border-color: var(--gray-200);
    --border-light: var(--gray-100);
    --border-dark: var(--gray-300);

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* 布局 */
    --sidebar-width: 280px;
    --header-height: 72px;
    --mobile-breakpoint: 768px;

    /* 动画 - 禁用以提升性能 */
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-slow: 0ms;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
}

/* ===== 认证相关样式 ===== */
.auth-tabs {
    display: flex;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    position: relative;
}

.auth-tab.active {
    color: var(--primary-color);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.auth-info {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--primary-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
}

/* ===== 用户状态样式 ===== */
.user-status {
    margin-bottom: var(--spacing-md);
}

.user-section {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.user-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gradient);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-300), var(--gray-200));
    color: var(--gray-600);
    font-size: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-avatar.online {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.user-details {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.user-storage {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.user-storage.online {
    color: var(--success-color);
    font-weight: 500;
}

.auth-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

.auth-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.user-actions {
    display: flex;
    gap: var(--spacing-md);
}

.sync-btn, .logout-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.sync-btn {
    background: linear-gradient(135deg, var(--success-color), #0ea874);
    color: white;
    flex: 1;
}

.sync-btn:hover {
    background: linear-gradient(135deg, #0ea874, #059669);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.logout-btn {
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
    color: var(--text-secondary);
    min-width: 44px;
}

.logout-btn:hover {
    background: linear-gradient(135deg, var(--gray-300), var(--gray-400));
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* 认证错误状态 */
.auth-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem;
    background: rgba(251, 146, 60, 0.1);
    border: 1px solid rgba(251, 146, 60, 0.2);
    border-radius: 8px;
    text-align: center;
}

.auth-error i {
    color: #f59e0b;
    font-size: 1.25rem;
}

.auth-error span {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.auth-error small {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== 同步模态框样式 ===== */
.sync-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--background-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.sync-info i {
    font-size: 24px;
    color: var(--primary-color);
}

.sync-info h3 {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--text-primary);
    font-size: 16px;
}

.sync-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.sync-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.sync-actions .btn {
    flex: 1;
}

.sync-warning {
    padding: var(--spacing-md);
    background: var(--warning-light);
    border-radius: var(--radius-md);
    color: var(--warning-color);
    font-size: 13px;
}

.sync-warning i {
    margin-right: var(--spacing-xs);
}

/* ===== 基础重置和全局样式 ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--accent-pink));
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* 查看模态框的特殊滚动条 */
.view-modal-content-wrapper::-webkit-scrollbar {
    width: 10px;
}

.view-modal-content-wrapper::-webkit-scrollbar-track {
    background: rgba(99, 102, 241, 0.1);
    border-radius: 5px;
}

.view-modal-content-wrapper::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border-radius: 5px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.view-modal-content-wrapper::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

/* 选择文本样式 */
::selection {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

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

/* ===== 简化的加载动画 ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

.spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--gray-200);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* ===== 主布局 ===== */
.app-layout {
    display: grid;
    grid-template-columns: 60px var(--sidebar-width) 1fr;
    height: 100vh;
    background: var(--background-secondary);
}

/* ===== 工具栏样式 ===== */
.toolbar {
    background: linear-gradient(180deg, #2d3748 0%, #1a202c 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md) 0;
    z-index: 1000;
}

.toolbar-header {
    margin-bottom: var(--spacing-lg);
}

.app-logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.app-logo:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.app-logo.active {
    background: linear-gradient(135deg, var(--accent-purple), var(--primary-color));
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
}

.toolbar-tools {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toolbar-footer {
    margin-top: var(--spacing-lg);
}

.tool-item {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    font-size: 18px;
}

.tool-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

.tool-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.tool-item::after {
    content: attr(title);
    position: absolute;
    left: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: 1001;
}

.tool-item:hover::after {
    opacity: 1;
}

/* ===== 工具面板样式 ===== */
.tools-container {
    height: 100%;
    overflow: hidden;
}

.tool-panel {
    display: none;
    height: 100%;
    flex-direction: column;
}

.tool-panel.active {
    display: flex;
}

.tool-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
}

.tool-placeholder i {
    font-size: 64px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    opacity: 0.5;
}

.tool-placeholder h3 {
    font-size: 24px;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.tool-placeholder p {
    font-size: 16px;
    opacity: 0.7;
}

/* ===== 计算器样式 ===== */
.calculator-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    padding: var(--spacing-xl);
}

.calculator {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    padding: var(--spacing-xl);
    width: 320px;
}

.calculator-display {
    margin-bottom: var(--spacing-lg);
}

.calculator-display input {
    width: 100%;
    height: 60px;
    border: none;
    background: var(--background-tertiary);
    border-radius: var(--radius-lg);
    padding: 0 var(--spacing-lg);
    font-size: 24px;
    font-weight: 600;
    text-align: right;
    color: var(--text-primary);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.calc-btn {
    height: 60px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.calc-number {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    color: var(--text-primary);
}

.calc-number:hover {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    transform: translateY(-1px);
}

.calc-operator {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
}

.calc-operator:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
    transform: translateY(-1px);
}

.calc-clear {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.calc-clear:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-1px);
}

.calc-equals {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.calc-equals:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
}

/* ===== 任务管理样式 ===== */
.task-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.stat-icon.pending {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-icon.progress {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.stat-icon.completed {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.task-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: 4px;
    background: var(--background-tertiary);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.task-list-container {
    flex: 1;
    overflow-y: auto;
}

.task-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.task-item {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.task-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.task-item.completed {
    opacity: 0.7;
}

.task-item.completed .task-title {
    text-decoration: line-through;
}

.task-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.task-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.task-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.task-action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--background-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.task-action-btn:hover {
    background: var(--primary-color);
    color: white;
}

.task-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.task-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
}

.task-priority {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-transform: uppercase;
}

.task-priority.high {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.task-priority.medium {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.task-priority.low {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.task-due-date {
    color: var(--text-tertiary);
}

.task-due-date.overdue {
    color: #dc2626;
    font-weight: 500;
}

.task-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-secondary);
    text-align: center;
}

.task-empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    opacity: 0.5;
}

.task-empty-state h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.task-empty-state p {
    font-size: 14px;
    opacity: 0.7;
}

/* ===== 笔记工具样式 ===== */
.notes-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    height: 100%;
    gap: var(--spacing-lg);
}

.notes-sidebar {
    background: var(--background-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    overflow-y: auto;
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.note-item {
    background: var(--background-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.note-item:hover {
    background: var(--background-tertiary);
    transform: translateY(-1px);
}

.note-item.active {
    background: var(--primary-color);
    color: white;
}

.note-item-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.note-item-preview {
    font-size: 12px;
    opacity: 0.7;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.note-item-date {
    font-size: 11px;
    opacity: 0.5;
    margin-top: var(--spacing-xs);
}

.notes-editor {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.notes-editor-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
}

.notes-editor-placeholder i {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    opacity: 0.5;
}

.notes-editor-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.notes-editor-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.note-title-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    outline: none;
}

.notes-editor-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.note-content-textarea {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--spacing-lg);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    outline: none;
    resize: none;
    font-family: inherit;
}

.notes-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-secondary);
    text-align: center;
}

.notes-empty-state i {
    font-size: 32px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    opacity: 0.5;
}

/* ===== 代码片段样式 ===== */
.snippets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.snippet-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.snippet-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.snippet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.snippet-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.snippet-language {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
}

.snippet-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.snippet-code-preview {
    background: var(--background-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--text-primary);
    overflow: hidden;
    max-height: 100px;
    position: relative;
}

.snippet-code-preview::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(transparent, var(--background-tertiary));
}

.snippet-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
}

.snippet-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.snippet-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 500;
}

.snippets-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-secondary);
    text-align: center;
}

.snippets-empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    opacity: 0.5;
}

/* ===== 书签管理样式 ===== */
.bookmark-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: 4px;
    background: var(--background-tertiary);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.bookmark-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.bookmark-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.bookmark-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.bookmark-action-buttons {
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.bookmark-card:hover .bookmark-action-buttons {
    opacity: 1;
}

.snippet-action-buttons {
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.snippet-card:hover .snippet-action-buttons {
    opacity: 1;
}

.bookmark-favicon {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    background: var(--background-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-secondary);
}

.bookmark-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark-url {
    color: var(--text-tertiary);
    font-size: 12px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bookmark-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bookmark-category {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
    text-transform: capitalize;
}

.bookmark-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.bookmark-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 500;
}

.bookmarks-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-secondary);
    text-align: center;
}

.bookmarks-empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    opacity: 0.5;
}

/* ===== 仪表盘样式 ===== */
.dashboard-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.overview-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all var(--transition-normal);
}

.overview-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.overview-card.clickable {
    cursor: pointer;
    position: relative;
}

.overview-card.clickable:hover .card-action {
    opacity: 1;
    transform: translateX(0);
}

.card-action {
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    opacity: 0;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    font-size: 16px;
}

.overview-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.overview-icon.prompts {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
}

.overview-icon.tasks {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.overview-icon.notes {
    background: linear-gradient(135deg, #10b981, #059669);
}

.overview-icon.snippets {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.overview-icon.bookmarks {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.overview-icon.images {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.overview-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
    line-height: 1;
}

.overview-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.dashboard-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.detail-section {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.detail-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-lg) 0;
}

.status-item, .category-item, .language-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.status-item:last-child, .category-item:last-child, .language-item:last-child {
    border-bottom: none;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
}

.status-dot.pending {
    background: #f59e0b;
}

.status-dot.progress {
    background: #3b82f6;
}

.status-dot.completed {
    background: #10b981;
}

.status-label, .category-label, .language-label {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.status-count, .category-count, .language-count {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--background-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.no-data {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: var(--spacing-lg);
}

/* ===== 仪表盘快速操作 ===== */
.dashboard-quick-actions {
    margin: var(--spacing-xl) 0;
}

.dashboard-quick-actions h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-lg) 0;
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.quick-action-btn {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: var(--text-primary);
}

.quick-action-btn:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.quick-action-btn i {
    font-size: 20px;
}

.quick-action-btn span {
    font-size: 12px;
    font-weight: 500;
    text-align: center;
}

/* ===== 使用统计 ===== */
.dashboard-usage {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.usage-section {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.usage-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-lg) 0;
}

.usage-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.usage-item:last-child {
    border-bottom: none;
}

.usage-tool {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.usage-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: white;
}

.usage-icon.prompts {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
}

.usage-icon.tasks {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.usage-icon.notes {
    background: linear-gradient(135deg, #10b981, #059669);
}

.usage-icon.snippets {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.usage-icon.bookmarks {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

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

.usage-count {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--background-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.recent-activities {
    max-height: 300px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: white;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 13px;
    color: var(--text-primary);
    margin: 0 0 2px 0;
}

.activity-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* ===== 简化侧边栏样式 ===== */
.simplified-sidebar {
    padding: var(--spacing-lg);
}

.simplified-sidebar .section-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-md) 0;
}

.simplified-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.tool-quick-stats {
    background: var(--background-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.quick-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.quick-stat:not(:last-child) {
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    z-index: 1001;
    width: 44px;
    height: 44px;
    background: var(--background-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: none; /* 默认隐藏 */
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-menu-btn:hover {
    background: var(--background-tertiary);
}

.mobile-menu-btn:active {
    transform: scale(0.95);
}

/* 响应式布局 */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex; /* 在移动端显示 */
    }

    .app-layout {
        grid-template-columns: 1fr;
    }

    .toolbar {
        display: none;
    }

    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        height: 100vh;
        z-index: 1000;
    }

    .sidebar.open {
        left: 0;
    }

    .main-content {
        padding-top: 72px; /* 为移动端菜单按钮留出空间 */
    }
}

/* ===== 侧边栏 - 大胆设计 ===== */
.sidebar {
    background: linear-gradient(180deg, #ffffff 0%, #f8faff 50%, #f0f4ff 100%);
    border-right: 2px solid rgba(99, 102, 241, 0.1);
    display: flex;
    flex-direction: column;
    width: var(--sidebar-width);
    height: 100vh;
    overflow: hidden;
    position: relative;
    box-shadow: 4px 0 20px rgba(99, 102, 241, 0.08);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-footer {
    margin-top: auto;
    flex-shrink: 0;
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899, #f59e0b);
    animation: gradientShift 4s ease-in-out infinite;
}

.sidebar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 60%),
        radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.03) 0%, transparent 60%);
    pointer-events: none;
}

/* 侧边栏头部 */
.sidebar-header {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-text {
    flex: 1;
}

.app-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
}

.app-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 2px 0 0 0;
    line-height: 1.2;
}

/* 分类导航 */
.category-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.nav-section {
    padding: 0 var(--spacing-lg);
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 var(--spacing-sm) 0;
    padding: 0 var(--spacing-sm);
}

.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-list li {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 2px 0;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    user-select: none;
    position: relative;
}

/* 分类项状态样式 */
.category-list li:hover {
    background: linear-gradient(135deg, var(--primary-light), #f0f4ff);
    color: var(--text-primary);
    transform: translateX(2px);
}

.category-list li.active {
    background: linear-gradient(135deg, var(--primary-light), #e0e7ff);
    color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
}

.category-list li.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: var(--primary-gradient);
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

/* 为不同分类添加彩色图标 */
.category-list li[data-id="all"] i {
    color: var(--accent-purple);
}

.category-list li:nth-child(2) i {
    color: var(--accent-blue);
}

.category-list li:nth-child(3) i {
    color: var(--accent-green);
}

.category-list li:nth-child(4) i {
    color: var(--accent-pink);
}

.category-list li:nth-child(5) i {
    color: var(--accent-orange);
}

.category-list li:nth-child(6) i {
    color: var(--accent-teal);
}

.category-list li i {
    margin-right: var(--spacing-sm);
    font-size: 14px;
    width: 16px;
    text-align: center;
}

/* 拖拽相关样式 */
.category-list li.draggable {
    cursor: grab;
}

.category-list li.draggable:active {
    cursor: grabbing;
}

.category-list li.dragging {
    opacity: 0.6;
    transform: scale(0.98);
    box-shadow: var(--shadow-lg);
}

.category-list li.drag-over {
    border-top: 2px solid var(--primary-color);
}

.category-list li.drag-over-bottom {
    border-bottom: 2px solid var(--primary-color);
}

/* 新建分类按钮 */
.add-category-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-sm) 0 0 0;
    background: none;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
}

.add-category-btn:hover {
    background: var(--background-tertiary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.add-category-btn i {
    font-size: 12px;
}

/* 侧边栏底部 */
.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.settings-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--background-secondary), var(--background-tertiary));
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.settings-btn:hover {
    background: linear-gradient(135deg, var(--background-tertiary), var(--gray-200));
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.settings-btn i {
    font-size: 16px;
    color: var(--primary-color);
}

/* ===== 主内容区 - 大胆背景 ===== */
.main-content {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(145deg, #fafbff 0%, #f0f4ff 30%, #e0e7ff 70%, #f0f4ff 100%);
    position: relative;
}

.main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 10%, rgba(99, 102, 241, 0.12) 0%, transparent 35%),
        radial-gradient(circle at 90% 90%, rgba(139, 92, 246, 0.1) 0%, transparent 35%),
        radial-gradient(circle at 70% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 35%),
        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
    pointer-events: none;
    animation: backgroundPulse 8s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 顶部导航栏 */
.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    height: var(--header-height);
    background: var(--background-primary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.header-left {
    flex: 1;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px 0;
    line-height: 1.2;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 12px;
    color: var(--text-secondary);
}

.breadcrumb-item {
    color: var(--text-tertiary);
}

.breadcrumb-item.active {
    color: var(--text-secondary);
    font-weight: 500;
}

.breadcrumb-separator {
    font-size: 10px;
    color: var(--text-tertiary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* 搜索容器 */
.search-container {
    position: relative;
}

.search-bar {
    position: relative;
    width: 320px;
}

.search-input {
    width: 100%;
    height: 42px;
    padding: 0 var(--spacing-md) 0 42px;
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 21px;
    font-size: 14px;
    color: var(--text-primary);
    box-shadow: 
        0 4px 16px rgba(99, 102, 241, 0.1),
        inset 0 1px 3px rgba(99, 102, 241, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.search-input::before {
    content: '';
    position: absolute;
    inset: -2px;
    padding: 2px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
    border-radius: 21px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.search-input:focus {
    outline: none;
    background: var(--background-primary);
    border-color: #6366f1;
    box-shadow: 
        0 8px 32px rgba(99, 102, 241, 0.2),
        0 0 0 4px rgba(99, 102, 241, 0.1),
        inset 0 1px 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.search-input:hover:not(:focus) {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 
        0 6px 24px rgba(99, 102, 241, 0.15),
        inset 0 1px 3px rgba(99, 102, 241, 0.08);
    transform: translateY(-0.5px);
}

.search-input::placeholder {
    color: #8b949e;
    font-style: italic;
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #6366f1;
    font-size: 16px;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 2;
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
}

.search-bar:hover .search-icon,
.search-bar:focus-within .search-icon {
    color: #4f46e5 !important;
    transform: translateY(-50%) scale(1.1);
    opacity: 1 !important;
    visibility: visible !important;
}

.search-clear {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    border-radius: 50%;
    color: var(--text-tertiary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-clear:hover {
    background: var(--background-tertiary);
    color: var(--text-secondary);
}

/* 主要按钮 - 大胆设计 */
.btn-primary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 44px;
    padding: 0 var(--spacing-lg);
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
    color: var(--text-inverse);
    border: none;
    border-radius: 22px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow:
        0 4px 16px rgba(99, 102, 241, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #8b5cf6, #ec4899, #f59e0b);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover {
    box-shadow:
        0 8px 32px rgba(99, 102, 241, 0.5),
        0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px) scale(1.05);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(-1px) scale(1.02);
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-primary i {
    font-size: 14px;
}

/* 内容区域 */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.prompt-grid-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* 统计栏 */
.stats-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--background-primary) 0%, #f8faff 100%);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.08);
    position: relative;
    overflow: hidden;
}

.stats-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gradient);
}

.stats-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stats-label {
    font-size: 12px;
    color: var(--text-secondary);
}

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

.view-toggle {
    display: flex;
    gap: 2px;
    background: var(--background-secondary);
    padding: 2px;
    border-radius: var(--radius-md);
}

.view-btn {
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-btn:hover {
    color: var(--text-primary);
}

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

/* 提示词网格 */
.prompt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* ===== 提示词卡片 - 大胆设计 ===== */
.prompt-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8faff 50%, #f0f4ff 100%);
    border: 2px solid transparent;
    border-radius: 24px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 4px 20px rgba(99, 102, 241, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05);
}

.prompt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    opacity: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 24px 24px 0 0;
}

.prompt-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.prompt-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow:
        0 20px 60px rgba(99, 102, 241, 0.15),
        0 8px 25px rgba(0, 0, 0, 0.08);
    transform: translateY(-8px) scale(1.02);
}

.prompt-card:hover::before {
    height: 8px;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.prompt-card:hover::after {
    opacity: 1;
}

/* 为不同的卡片添加大胆的渐变色条 */
.prompt-card:nth-child(6n+1)::before {
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
}

.prompt-card:nth-child(6n+2)::before {
    background: linear-gradient(135deg, #3b82f6, #06b6d4, #14b8a6);
}

.prompt-card:nth-child(6n+3)::before {
    background: linear-gradient(135deg, #10b981, #059669, #84cc16);
}

.prompt-card:nth-child(6n+4)::before {
    background: linear-gradient(135deg, #ec4899, #be185d, #f59e0b);
}

.prompt-card:nth-child(6n+5)::before {
    background: linear-gradient(135deg, #f59e0b, #d97706, #dc2626);
}

.prompt-card:nth-child(6n+6)::before {
    background: linear-gradient(135deg, #14b8a6, #0d9488, #6366f1);
}

.prompt-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.prompt-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.3;
    width: 100%;
    order: 1;
    letter-spacing: -0.01em;
}

/* 默认网格视图：header中分类隐藏，footer中分类显示 */
.prompt-card-header .category-badge {
    display: none;
}

.prompt-card-footer .category-badge {
    display: inline-flex;
}

/* 列表视图：header中分类显示，footer中分类隐藏 */
.prompt-grid.list-view .prompt-card-header .category-badge {
    display: inline-flex;
    order: 2;
    width: auto;
}

.prompt-grid.list-view .prompt-card-footer .category-badge {
    display: none;
}

.prompt-card-actions {
    display: flex;
    gap: var(--spacing-xs);
    order: 3;
}

/* 列表视图中操作按钮的位置调整 */
.prompt-grid.list-view .prompt-card-actions {
    order: 3;
    margin-left: auto;
}

.prompt-card-content {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    flex: 1;
    margin-bottom: var(--spacing-lg);

    /* 限制显示行数 */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;

    /* 添加更好的文字渲染 */
    font-weight: 400;
    letter-spacing: 0.01em;
}

.prompt-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    margin-top: auto;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(248, 250, 255, 0.8) 100%);
    margin: var(--spacing-md) calc(-1 * var(--spacing-xl)) calc(-1 * var(--spacing-xl));
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px var(--spacing-sm);
    background: var(--background-tertiary);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
}

.category-badge i {
    font-size: 10px;
}

/* 分类标签颜色样式 - 更精美的设计 */
.category-badge.category-purple {
    background: linear-gradient(135deg, #f0f1ff, #e0e7ff);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 1px 3px rgba(99, 102, 241, 0.1);
}

.category-badge.category-blue {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 1px 3px rgba(59, 130, 246, 0.1);
}

.category-badge.category-green {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.1);
}

.category-badge.category-pink {
    background: linear-gradient(135deg, #fce7f3, #fbcfe8);
    color: var(--accent-pink);
    border: 1px solid rgba(236, 72, 153, 0.2);
    box-shadow: 0 1px 3px rgba(236, 72, 153, 0.1);
}

.category-badge.category-orange {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: var(--accent-orange);
    border: 1px solid rgba(245, 158, 11, 0.2);
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.1);
}

.category-badge.category-teal {
    background: linear-gradient(135deg, #ccfbf1, #99f6e4);
    color: var(--accent-teal);
    border: 1px solid rgba(20, 184, 166, 0.2);
    box-shadow: 0 1px 3px rgba(20, 184, 166, 0.1);
}

.category-badge.category-default {
    background: linear-gradient(135deg, var(--background-tertiary), #f1f5f9);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* 操作按钮 */
.action-btn {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    border-color: rgba(99, 102, 241, 0.2);
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.action-btn.btn-copy:hover {
    background: var(--info-gradient);
    color: white;
    border-color: var(--info-color);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transform: scale(1.05);
}

.action-btn.btn-edit:hover {
    background: var(--warning-gradient);
    color: white;
    border-color: var(--warning-color);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    transform: scale(1.05);
}

.action-btn.btn-delete:hover {
    background: var(--danger-gradient);
    color: white;
    border-color: var(--danger-color);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    transform: scale(1.05);
}

/* ===== 空状态 ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    background: linear-gradient(135deg, var(--background-primary) 0%, #f8faff 100%);
    border: 2px dashed var(--primary-color);
    border-radius: var(--radius-xl);
    margin: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.empty-state::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.empty-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
    position: relative;
    z-index: 1;
}

.empty-icon i {
    font-size: 32px;
    color: white;
}

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

.empty-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    max-width: 400px;
}

.empty-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.empty-action:hover {
    background: var(--primary-hover);
}

/* ===== 通用按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
}

.btn-secondary {
    background: var(--background-primary);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--background-tertiary);
    color: var(--text-primary);
    border-color: var(--border-dark);
}

.btn-danger {
    background: var(--danger-color);
    color: var(--text-inverse);
}

.btn-danger:hover {
    background: #dc2626;
}

/* ===== 网格空状态 ===== */
#prompt-grid:empty::after {
    content: '';
    display: none;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--background-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 800px;
    max-height: 95vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
}

/* 设置模态框特殊样式 - 确保内容能完全显示 */
#settings-modal .modal-content {
    max-height: 98vh;
}

#settings-modal .modal-body {
    padding: var(--spacing-sm) var(--spacing-lg);
    max-height: calc(98vh - 140px);
    overflow-y: auto;
}

#settings-modal .modal-header {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-md);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 255, 0.9) 100%);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    position: relative;
}

.modal-header {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 255, 0.9) 100%);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close-btn {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.modal-close-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
    transform: scale(1.05);
}

.modal-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

#modal-title,
#settings-modal-title,
#view-modal-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

.modal-body {
    padding: var(--spacing-xl);
}

/* 表单样式 */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 14px;
    color: var(--text-primary);
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--background-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-family: var(--font-mono);
    line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

#settings-modal .modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

/* ===== 查看提示词模态框 - 大胆设计 ===== */
.view-modal-content-wrapper {
    max-height: 65vh;
    overflow-y: auto;
    background: linear-gradient(145deg, #f0f4ff 0%, #e0e7ff 50%, #ddd6fe 100%);
    border: 2px solid transparent;
    border-radius: 20px;
    margin: var(--spacing-lg) 0;
    box-shadow:
        inset 0 4px 16px rgba(99, 102, 241, 0.12),
        0 4px 20px rgba(99, 102, 241, 0.08);
    position: relative;
}

.view-modal-content-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
    border-radius: 20px 20px 0 0;
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899, #f59e0b); }
    50% { background: linear-gradient(135deg, #f59e0b, #ec4899, #8b5cf6, #6366f1); }
}

.view-modal-content-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

#view-modal-content {
    padding: 32px;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-mono);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    margin: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 255, 0.8) 100%);
    border-radius: 16px;
    margin: 20px;
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

/* ===== 右键菜单 ===== */
.context-menu {
    position: absolute;
    z-index: 2000;
    background: var(--background-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm) 0;
    min-width: 160px;
}

.context-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.context-menu li {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
    color: var(--text-secondary);
}

.context-menu li:hover {
    background: var(--background-tertiary);
    color: var(--text-primary);
}

.context-menu li i {
    width: 16px;
    text-align: center;
}

/* ===== 设置模态框 ===== */
.settings-section {
    margin-bottom: var(--spacing-sm);
}

.settings-section:not(:last-child) {
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.settings-section h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.settings-section p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.4;
}

.settings-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
}

/* 存储信息样式 */
.storage-info {
    background: var(--background-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: 2px;
    font-size: 13px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item i {
    color: var(--primary-color);
    margin-top: 2px;
    flex-shrink: 0;
    font-size: 14px;
}

.info-item .fas.fa-exclamation-triangle {
    color: var(--warning-color);
}

/* 备份提示样式 */
.backup-tips {
    background: var(--background-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.backup-tips h4 {
    margin: 0 0 2px 0;
    color: var(--text-primary);
    font-size: 14px;
}

.backup-tips ul {
    margin: 0;
    padding-left: var(--spacing-sm);
}

.backup-tips li {
    margin-bottom: 2px;
    line-height: 1.3;
    font-size: 13px;
    color: var(--text-secondary);
}

.backup-tips strong {
    color: var(--text-primary);
}

/* 备份恢复区域 */
.backup-restore {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.backup-restore p {
    margin: 0;
    font-size: 13px;
    line-height: 1.3;
}

/* 高级选项样式 */
.advanced-options {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--danger-light);
    border-radius: var(--radius-md);
}

.warning-text {
    margin: var(--spacing-xs) 0 0 0;
    font-size: 11px;
    color: var(--danger-color);
    font-weight: 500;
}

/* 存储方法选择器 */
.storage-methods {
    margin-top: var(--spacing-sm);
}

.storage-methods h4 {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--text-primary);
    font-size: 14px;
}

.method-tabs {
    display: flex;
    gap: 1px;
    background: var(--background-tertiary);
    border-radius: var(--radius-md);
    padding: 1px;
    margin-bottom: var(--spacing-xs);
}

.method-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    text-align: center;
}

.method-tab:hover {
    color: var(--text-primary);
}

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

.method-tab i {
    font-size: 14px;
}

.method-content {
    background: var(--background-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
}

.method-panel {
    display: none;
}

.method-panel.active {
    display: block;
}

.method-panel h5 {
    margin: 0 0 2px 0;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
}

.method-panel ol {
    margin: 0 0 var(--spacing-xs) 0;
    padding-left: var(--spacing-sm);
}

.method-panel li {
    margin-bottom: 2px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.3;
}

.method-panel .tip {
    margin: var(--spacing-xs) 0 0 0;
    padding: var(--spacing-xs);
    background: var(--background-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
    border-left: 2px solid var(--primary-color);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .prompt-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
        --header-height: 64px;
    }

    .main-header {
        padding: 0 var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-md);
        height: auto;
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }

    .header-left {
        width: 100%;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .search-bar {
        width: 100%;
        max-width: none;
    }

    .btn-primary .btn-text {
        display: none;
    }

    .content-area {
        padding: var(--spacing-md);
    }

    .prompt-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .stats-bar {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }

    .view-toggle {
        align-self: center;
    }

    .modal-overlay {
        padding: var(--spacing-md);
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-actions {
        flex-direction: column-reverse;
        gap: var(--spacing-sm);
    }

    .modal-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 20px;
    }

    .breadcrumb {
        font-size: 11px;
    }

    .prompt-card {
        padding: var(--spacing-md);
    }

    .prompt-card-title {
        font-size: 14px;
    }

    .prompt-card-content {
        font-size: 13px;
        -webkit-line-clamp: 3;
    }
}

/* ===== 基础动画 ===== */
.slide-in-left {
    transform: translateX(0);
}

.slide-in-right {
    transform: translateX(0);
}

/* ===== 列表视图样式 ===== */
.prompt-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.prompt-grid.list-view .prompt-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 80px;
}

.prompt-grid.list-view .prompt-card::before {
    width: 4px;
    height: 60%;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 0 2px 2px 0;
}

.prompt-grid.list-view .prompt-card-header {
    flex: 0 0 240px;
    margin-bottom: 0;
    margin-right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.prompt-grid.list-view .prompt-card-title {
    font-size: 15px;
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
}

.prompt-grid.list-view .prompt-card-content {
    flex: 1;
    margin-bottom: 0;
    margin-right: var(--spacing-lg);
    -webkit-line-clamp: 2;
    font-size: 13px;
}

.prompt-grid.list-view .prompt-card-footer {
    flex: 0 0 auto;
    border-top: none;
    padding-top: 0;
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* 在列表视图中，将分类标签移到标题下方 */
.prompt-grid.list-view .category-badge {
    font-size: 11px;
    padding: 2px var(--spacing-xs);
    white-space: nowrap;
    max-width: 200px;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
}

.prompt-grid.list-view .prompt-card-actions {
    opacity: 1;
}

/* ===== 工具提示 ===== */
[title] {
    position: relative;
}

/* ===== 滚动优化 ===== */
.content-area {
    scroll-behavior: smooth;
}

/* ===== 简化的交互效果 ===== */
/* 按钮点击效果 */
.btn-primary:active,
.action-btn:active {
    transform: scale(0.98);
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ===== 打印样式 ===== */
@media print {
    .sidebar,
    .mobile-menu-btn,
    .main-header,
    .stats-bar,
    .prompt-card-actions,
    .modal-overlay {
        display: none !important;
    }

    .main-content {
        padding: 0;
    }

    .prompt-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* 批量操作样式 */
.batch-toolbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    animation: slideDown 0.3s ease-out;
}

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

.batch-info {
    font-weight: 600;
    font-size: 14px;
}

.batch-actions {
    display: flex;
    gap: 10px;
}

.batch-actions .btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 13px;
    padding: 6px 12px;
    transition: all 0.2s ease;
}

.batch-actions .btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.batch-actions .btn-danger {
    background: rgba(220, 53, 69, 0.8);
    border-color: rgba(220, 53, 69, 0.8);
}

.batch-actions .btn-danger:hover {
    background: rgba(220, 53, 69, 1);
}

.prompt-card.selected {
    border: 2px solid #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
    position: relative;
}

.prompt-card.selected::before {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: #667eea;
    border-radius: 50%;
    border: 2px solid white;
    z-index: 10;
}

.prompt-card.selected::after {
    content: '✓';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: #667eea;
    border-radius: 50%;
    border: 2px solid white;
    color: white;
    font-size: 12px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    z-index: 11;
}

.prompt-card {
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.view-toggle {
    display: flex;
    gap: 8px;
    align-items: center;
}

#select-all-btn {
    margin-right: 12px;
    font-size: 13px;
    padding: 6px 10px;
}

.batch-move-info {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 12px;
    margin-top: 10px;
    text-align: center;
    color: #495057;
}

/* 全屏加载指示器样式 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: opacity 0.3s ease;
}

.loading-spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border-left-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

#loading-status {
    margin-top: 20px;
    font-size: 1rem;
    color: #333;
    font-weight: 500;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.modal-container .modal-content button:hover {
    opacity: 0.9;
}

.user-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

#cloud-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-tertiary);
    margin-left: var(--spacing-xs);
}

#cloud-status-icon.syncing {
    color: var(--info-color);
    /* 移除旋转动画 */
}

#cloud-status-icon.synced {
    color: var(--success-color);
}

#cloud-status-icon.failed {
    color: var(--danger-color);
}

.user-area .btn {
    padding: 8px 15px;
}

/* ===== 图片管理工具样式 ===== */

/* 图片上传区域 */
.upload-area {
    background: var(--background-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 2px dashed var(--border-color);
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.upload-area.drag-over {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: scale(1.02);
}

.upload-zone {
    text-align: center;
    padding: var(--spacing-xl);
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-zone:hover {
    transform: translateY(-2px);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.upload-text h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.upload-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
}

.upload-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 上传分类选择器 */
.upload-category {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background-tertiary);
    border-radius: var(--border-radius-md);
}

.upload-category label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
}

.upload-category select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--background-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* 上传进度条 */
.upload-progress {
    margin-top: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.progress-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 图片网格 */
.images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

/* 图片卡片 */
.image-card {
    background: var(--background-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.image-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.image-preview {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
    background: var(--gray-100);
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.image-card:hover .image-preview img {
    transform: scale(1.05);
}

/* 图片分类徽章 */
.image-category-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.image-info {
    padding: var(--spacing-md);
}

.image-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.image-size {
    color: var(--text-secondary);
}

.image-date {
    color: var(--text-tertiary);
}

/* 图片操作按钮 */
.image-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-card:hover .image-actions {
    opacity: 1;
}

.image-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.image-action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.image-action-btn.delete:hover {
    background: var(--danger-color);
}

/* 图片空状态 */
.images-empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--text-tertiary);
}

.images-empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-300);
}

.images-empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.images-empty-state p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* 图片预览模态框 */
.image-modal-content {
    background: var(--background-primary);
    border-radius: var(--border-radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--background-secondary);
}

.image-modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-weight: 600;
}

.image-modal-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--gray-900);
    min-height: 400px;
}

.image-modal-body img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--border-radius-md);
}

.image-modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--background-secondary);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.image-modal-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.image-modal-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.image-modal-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.image-modal-actions .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .image-modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }

    .image-modal-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .image-modal-actions {
        justify-content: center;
    }
}