/*
 * 飞书风格 UI 设计系统
 * Feishu Design System
 */

/* ==================== 变量定义 ==================== */
:root {
    /* 飞书主色调 */
    --feishu-primary: #3370FF;
    --feishu-primary-hover: #2860E0;
    --feishu-primary-light: #E8F1FF;
    --feishu-success: #34D399;
    --feishu-success-light: #E8F5E9;
    --feishu-warning: #FBBF24;
    --feishu-warning-light: #FFF4E5;
    --feishu-danger: #F87171;
    --feishu-error: #F54A45;
    --feishu-info: #60A5FA;
    /* Backward-compatible aliases for legacy inline styles */
    --primary-color: var(--feishu-primary);
    --danger-color: var(--feishu-danger);

    /* 中性色 */
    --feishu-gray-50: #F5F6F7;
    --feishu-gray-100: #F2F3F5;
    --feishu-gray-200: #EBECF0;
    --feishu-gray-300: #DEE0E3;
    --feishu-gray-400: #BBBFC4;
    --feishu-gray-500: #8F959E;
    --feishu-gray-600: #646A73;
    --feishu-gray-700: #414851;
    --feishu-gray-800: #1F2329;
    --feishu-gray-900: #0F1216;

    /* 背景色 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F6F7;
    --bg-tertiary: #F2F3F5;
    --bg-sidebar: #FFFFFF;
    --bg-hover: #F2F3F5;
    --bg-active: #E8F1FF;

    /* 文字色 */
    --text-primary: #1F2329;
    --text-secondary: #646A73;
    --text-tertiary: #8F959E;
    --text-disabled: #BBBFC4;
    --text-inverse: #FFFFFF;

    /* 边框 */
    --border-color: #DEE0E3;
    --border-color-light: #EBECF0;

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

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

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 13px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 20px;
    --font-size-3xl: 24px;

    /* 侧边栏 */
    --sidebar-width: 240px;
    --header-height: 60px;
}

/* ==================== 全局重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 应用布局 ==================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-header {
    height: var(--header-height);
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color-light);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--feishu-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    overflow: hidden;
}

.sidebar-logo-icon img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    display: block;
}

.sidebar-logo-fallback {
    display: none;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    line-height: 1;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--spacing-xl);
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    position: relative;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--bg-active);
    color: var(--feishu-primary);
}

.nav-item-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.nav-item.has-notify-dot::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff4d4f;
    box-shadow: 0 0 0 2px #fff;
}

.nav-item.is-processing::after {
    background: #faad14;
}

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color-light);
}

.user-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.2s;
}

.user-card:hover {
    background: var(--bg-hover);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--feishu-primary-light);
    color: var(--feishu-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.account-security-entry {
    margin-top: var(--spacing-sm);
    width: 100%;
    border: 1px solid var(--border-color-light);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    padding: 8px var(--spacing-md);
    font-size: var(--font-size-xs);
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.account-security-entry:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 18, 22, 0.32);
    z-index: 95;
}

.onboarding-entry {
    margin-top: var(--spacing-sm);
    width: 100%;
    border: 1px solid #BFD6FF;
    background: #EEF4FF;
    color: #1F5FD6;
    border-radius: var(--radius-md);
    padding: 8px var(--spacing-md);
    font-size: var(--font-size-xs);
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.onboarding-entry:hover {
    background: #E3EEFF;
    border-color: #96B9FF;
    color: #174FAF;
}

.onboarding-entry-label {
    font-weight: 600;
}

.onboarding-entry-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 46px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: #1F5FD6;
    background: #DDE9FF;
}

/* ==================== 主内容区 ==================== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==================== 顶部导航栏 ==================== */
.top-header {
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-2xl);
    position: sticky;
    top: 0;
    z-index: 90;
}

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

.header-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.menu-toggle {
    display: none;
    width: 34px;
    height: 34px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-size: 18px;
}

.menu-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ==================== 内容区域 ==================== */
.content-area {
    flex: 1;
    padding: var(--spacing-2xl);
    overflow-y: auto;
}

/* ==================== 卡片组件 ==================== */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color-light);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

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

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

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

.card-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color-light);
    background: var(--bg-tertiary);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ==================== 按钮组件 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    outline: none;
    white-space: nowrap;
    min-height: 36px;
    flex-shrink: 0;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px var(--feishu-primary-light);
}

.btn:disabled {
    opacity: 0.58;
    cursor: not-allowed;
    pointer-events: none;
}

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

.btn-primary:hover {
    background: var(--feishu-primary-hover);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-text {
    background: transparent;
    color: var(--feishu-primary);
}

.btn-text:hover {
    background: var(--feishu-primary-light);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
}

.topic-card-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-shrink: 0;
}

.topic-card-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ==================== 输入框组件 ==================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.search-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: nowrap;
}

.search-input {
    flex: 1;
    min-width: 0;
}

.search-select {
    width: auto;
    min-width: 160px;
    flex: 0 0 auto;
}

.search-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 0 0 auto;
}

.search-actions .btn {
    min-width: 88px;
}

.search-actions .btn span {
    white-space: nowrap;
}

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

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.2s;
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--feishu-primary);
    box-shadow: 0 0 0 3px var(--feishu-primary-light);
}

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

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

/* ==================== 聊天区域 ==================== */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-height) - var(--spacing-2xl) * 2);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color-light);
    overflow: hidden;
}

.chat-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
}

.chat-topic-info h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.chat-topic-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
}

.message {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    animation: messageFadeIn 0.3s ease;
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.message.ai .message-avatar {
    background: var(--feishu-primary-light);
    color: var(--feishu-primary);
}

.message.user .message-avatar {
    background: var(--feishu-primary);
    color: white;
}

.message-content {
    max-width: 70%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.message.ai .message-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color-light);
    color: var(--text-primary);
}

.message.user .message-content {
    background: var(--feishu-primary);
    color: white;
    margin-left: auto;
}

.message-content p {
    margin: 0 0 var(--spacing-sm) 0;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-sm);
}

.message-content pre {
    background: rgba(0, 0, 0, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
}

/* 聊天输入区 */
.chat-input-area {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color-light);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    resize: none;
    min-height: 44px;
    max-height: 120px;
    font-family: inherit;
    transition: all 0.2s;
}

.chat-input:focus {
    outline: none;
    border-color: var(--feishu-primary);
}

.chat-send-btn {
    padding: var(--spacing-md);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--feishu-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: var(--feishu-primary-hover);
}

.chat-send-btn:disabled {
    background: var(--text-disabled);
    cursor: not-allowed;
}

/* ==================== 话题卡片 ==================== */
.topic-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color-light);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    transition: all 0.2s;
}

.topic-card:hover {
    box-shadow: var(--shadow-md);
}

.topic-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.topic-card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.topic-card-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--feishu-primary-light);
    color: var(--feishu-primary);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.topic-card-summary {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.topic-card-source {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
}

.topic-card-source a {
    color: var(--feishu-primary);
    text-decoration: none;
    font-weight: 500;
}

.topic-card-source a:hover {
    text-decoration: underline;
}

.topic-questions-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

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

.question-item {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    text-align: left;
}

.question-item:hover {
    background: var(--bg-hover);
    border-color: var(--feishu-primary);
}

/* ==================== 空状态 ==================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    text-align: center;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-lg);
}

.empty-state-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 400px;
}

/* ==================== 新手引导 ==================== */

.onboarding-progress-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.onboarding-checklist-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.onboarding-step-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.onboarding-step-main {
    min-width: 0;
}

.onboarding-step-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.onboarding-step-desc {
    margin-top: 2px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.onboarding-step-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.onboarding-step-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.onboarding-step-badge.done {
    background: #E8F5E9;
    color: #2E7D32;
}

.onboarding-step-badge.pending {
    background: #FFF4E5;
    color: #A15C00;
}

.onboarding-tour-overlay {
    position: fixed;
    inset: 0;
    z-index: 3600;
    pointer-events: auto;
}

.onboarding-tour-spotlight {
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 0;
    border-radius: 12px;
    border: 2px solid #9EC0FF;
    box-shadow: 0 0 0 9999px rgba(8, 12, 20, 0.62), 0 0 0 1px rgba(255, 255, 255, 0.6) inset, 0 12px 32px rgba(11, 30, 74, 0.28);
    background: rgba(255, 255, 255, 0.03);
    transition: left 0.2s ease, top 0.2s ease, width 0.2s ease, height 0.2s ease;
}

.onboarding-tour-card {
    position: absolute;
    left: 50%;
    top: auto;
    bottom: 24px;
    transform: translateX(-50%);
    width: min(420px, calc(100vw - 32px));
    background: #FFFFFF;
    border-radius: 14px;
    border: 1px solid #D6E1F6;
    box-shadow: 0 16px 40px rgba(9, 26, 58, 0.28);
    padding: 16px;
}

.onboarding-tour-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.onboarding-tour-title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: #1A2B4A;
}

.onboarding-tour-progress {
    margin-top: 4px;
    font-size: 12px;
    color: #5B6B84;
}

.onboarding-tour-desc {
    margin-top: 10px;
    color: #2C3D59;
    line-height: 1.6;
    font-size: 14px;
}

.onboarding-tour-footer {
    margin-top: 14px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.onboarding-tour-overlay .btn {
    min-width: 80px;
}

.onboarding-tour-overlay .modal-close {
    color: #6F7D95;
}

.onboarding-tour-overlay .modal-close:hover {
    background: #EEF3FB;
    color: #374A6C;
}

/* ==================== 加载状态 ==================== */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--feishu-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-lg);
}

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

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

/* ==================== 弹窗 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-xl);
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.onboarding-drawer {
    justify-content: flex-end;
    align-items: stretch;
    padding: 0;
    background: rgba(15, 18, 22, 0.42);
}

.onboarding-drawer .modal-content {
    width: min(460px, 100vw);
    max-width: min(460px, 100vw);
    height: 100vh;
    max-height: 100vh;
    border-radius: 16px 0 0 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.onboarding-drawer.modal-anim .modal-content {
    transform: translateX(24px);
}

.onboarding-drawer.modal-anim.modal-visible .modal-content {
    transform: translateX(0);
}

.onboarding-drawer-header {
    flex-shrink: 0;
}

.onboarding-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.onboarding-summary-text {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.onboarding-drawer-footer {
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
}

.modal-overlay.modal-anim {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0s linear 0.22s;
}

.modal-overlay.modal-anim .modal-content {
    transform: translateY(14px) scale(0.985);
    opacity: 0.98;
    transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.22s ease;
}

.modal-overlay.modal-anim.modal-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.22s ease;
}

.modal-overlay.modal-anim.modal-visible .modal-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .modal-overlay.modal-anim,
    .modal-overlay.modal-anim .modal-content {
        transition: none;
    }
}

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

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

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 20px;
    color: var(--text-tertiary);
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

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

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

.share-success-modal {
    z-index: 2000;
}

.share-success-modal-content {
    max-width: 480px;
    text-align: center;
}

.share-success-modal-header {
    justify-content: center;
    border-bottom: none;
    padding-bottom: 0;
}

.share-success-modal-title {
    font-size: 20px;
}

.share-success-modal-body {
    padding: 24px 32px;
}

.share-success-url {
    background: #e8f1ff;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
    word-break: break-all;
    font-size: 13px;
    color: var(--feishu-primary);
    border: 1px dashed var(--feishu-primary);
}

.share-success-tip-primary {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: 8px;
}

.share-success-tip-secondary {
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
}

.share-success-modal-footer {
    justify-content: center;
    gap: 12px;
    padding-top: 0;
}

.external-ref-detail-content {
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.external-ref-detail-header {
    border-bottom: 1px solid var(--border-color-light);
}

.external-ref-type-badge {
    font-size: 12px;
    color: var(--feishu-primary);
    background: #e8f1ff;
    padding: 4px 8px;
    border-radius: 4px;
}

.external-ref-title {
    margin-top: 8px;
    margin-bottom: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.external-ref-detail-body {
    overflow-y: auto;
    flex: 1;
    line-height: 1.8;
    white-space: pre-wrap;
}

.external-ref-detail-footer {
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.external-ref-detail-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== 知识详情弹窗规范 ==================== */
.knowledge-detail-modal {
    z-index: 1200;
}

/* 知识详情中触发的二级创作弹窗必须在最上层显示 */
#content-generation-modal,
#custom-requirement-modal {
    z-index: 1300;
}

.knowledge-detail-content {
    max-width: 840px;
    max-height: 82vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.knowledge-detail-header {
    flex-shrink: 0;
}

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

.knowledge-detail-body {
    overflow-y: auto;
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.knowledge-detail-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color-light);
}

.knowledge-detail-section:last-child {
    margin-bottom: 0;
}

.knowledge-detail-intro {
    padding-bottom: var(--spacing-lg);
}

.knowledge-detail-topic {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
    margin-bottom: var(--spacing-md);
}

.knowledge-detail-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
}

.knowledge-detail-meta-pill {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color-light);
    border-radius: 999px;
    padding: 2px 10px;
}

.knowledge-detail-meta-text {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.knowledge-detail-section-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.knowledge-detail-paragraph {
    color: var(--text-secondary);
    line-height: 1.85;
    white-space: pre-wrap;
}

.knowledge-detail-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-secondary);
}

.knowledge-detail-list li {
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.75;
}

.knowledge-detail-list-quote {
    font-style: italic;
}

.knowledge-detail-helper {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.knowledge-detail-action-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.knowledge-action-btn {
    width: 100%;
    justify-content: center;
    white-space: nowrap;
}

.knowledge-action-btn-primary {
    background: linear-gradient(135deg, #3370ff 0%, #5b8ff9 100%);
    border: none;
}

.knowledge-detail-chat-section {
    border-bottom: none;
    padding-bottom: 0;
}

.knowledge-detail-chat-history {
    max-height: 360px;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.knowledge-chat-item {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
}

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

.knowledge-chat-item.is-user {
    background: var(--feishu-primary-light);
}

.knowledge-chat-item.is-ai {
    background: var(--bg-primary);
    border: 1px solid var(--border-color-light);
}

.knowledge-chat-role {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.knowledge-chat-item.is-user .knowledge-chat-role {
    color: var(--feishu-primary);
}

.knowledge-chat-item.is-ai .knowledge-chat-role {
    color: var(--text-secondary);
}

.knowledge-chat-text {
    color: var(--text-primary);
    line-height: 1.7;
    white-space: pre-wrap;
}

.knowledge-chat-empty {
    color: var(--text-tertiary);
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.knowledge-detail-footer {
    flex-shrink: 0;
}

.account-security-modal-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.account-security-tip {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.account-security-action {
    width: 100%;
}

.profile-modal-content {
    max-width: 760px;
    width: min(760px, calc(100vw - 32px));
    max-height: calc(100dvh - 32px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.profile-modal-content .modal-body {
    flex: 1;
    overflow-y: auto;
}

.profile-modal-content .modal-footer {
    flex-shrink: 0;
    background: var(--bg-primary);
    box-shadow: 0 -8px 16px rgba(15, 18, 22, 0.06);
}

/* ==================== 登录浮层 ==================== */
.login-overlay {
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: rgba(15, 18, 22, 0.58);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-panel {
    width: 100%;
    max-width: 460px;
    background: var(--bg-primary);
    border-radius: 16px;
    border: 1px solid var(--border-color-light);
    box-shadow: 0 20px 56px rgba(12, 18, 28, 0.28);
    padding: 28px;
}

.login-overlay.modal-anim .auth-panel {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
    transition: transform 0.22s ease, opacity 0.22s ease;
}

.login-overlay.modal-anim.modal-visible .auth-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.auth-form h2 {
    font-size: 24px;
    line-height: 1.2;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 18px;
}

.auth-form .form-input {
    margin-bottom: 12px;
}

.auth-submit-btn {
    width: 100%;
    margin-top: 2px;
}

.auth-link-text {
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-secondary);
}

.auth-link-text a {
    color: var(--feishu-primary);
    text-decoration: none;
}

.auth-link-text a:hover {
    text-decoration: underline;
}

.auth-help-text {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.activate-help-text {
    line-height: 1.6;
    margin-bottom: 12px;
}

.auth-hint {
    margin-top: 16px;
    font-size: 13px;
    border-radius: 8px;
    padding: 10px 12px;
}

.auth-hint-info {
    color: #0b7285;
    background: #e6f7ff;
}

.auth-hint-success {
    color: #2b8a3e;
    background: #ebfbee;
}

.auth-hint-error {
    color: #c92a2a;
    background: #fff5f5;
}

/* ==================== Toast 提示 ==================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    animation: toastSlideIn 0.3s ease;
}

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

.toast-success {
    border-left: 4px solid var(--feishu-success);
}

.toast-error {
    border-left: 4px solid var(--feishu-danger);
}

.toast-info {
    border-left: 4px solid var(--feishu-primary);
}

.toast-warning {
    border-left: 4px solid var(--feishu-warning);
    background: #FFF9E8;
    color: #8A5A00;
}

/* Markdown 预览区域样式 */
.markdown-preview {
    font-size: 15px;
    color: var(--text-primary);
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4 {
    margin-top: 16px;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-preview h1 {
    font-size: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.markdown-preview h2 {
    font-size: 18px;
}

.markdown-preview h3 {
    font-size: 16px;
}

.markdown-preview p {
    margin-bottom: 12px;
}

.markdown-preview ul,
.markdown-preview ol {
    margin-bottom: 12px;
    padding-left: 24px;
}

.markdown-preview li {
    margin-bottom: 6px;
}

.markdown-preview code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 13px;
}

.markdown-preview pre {
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 12px;
}

.markdown-preview pre code {
    background: none;
    padding: 0;
}

.markdown-preview blockquote {
    border-left: 3px solid var(--feishu-primary);
    padding-left: 12px;
    margin-left: 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-preview strong {
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-preview em {
    font-style: italic;
}

.toast-loading {
    border-left: 4px solid var(--feishu-primary);
    background: linear-gradient(90deg, var(--feishu-primary-light) 0%, #fff 50%, var(--feishu-primary-light) 100%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

.toast-loading .loading-icon {
    display: inline-block;
    font-size: 20px;
    animation: flip-sand 2s ease-in-out infinite;
}

/* ==================== 全局任务队列 ==================== */
.task-queue-panel {
    position: fixed;
    right: 20px;
    top: 16px;
    bottom: auto;
    width: min(360px, calc(100vw - 24px));
    max-height: calc(100vh - 36px);
    border-radius: 10px;
    border: 1px solid var(--border-color-light);
    background: var(--bg-primary);
    box-shadow: 0 14px 36px rgba(15, 18, 22, 0.2);
    z-index: 2800;
    overflow: hidden;
}

.task-queue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color-light);
    background: var(--bg-secondary);
}

.task-queue-title-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.task-queue-icon {
    color: var(--feishu-primary);
    font-size: 16px;
}

.task-queue-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.task-queue-summary {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.task-queue-btn {
    border: 1px solid var(--border-color-light);
    background: #fff;
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 3px 7px;
    font-size: 11px;
    cursor: pointer;
}

.task-queue-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.task-queue-body {
    max-height: min(320px, calc(100vh - 180px));
    overflow-y: auto;
    padding: 10px;
    display: grid;
    gap: 8px;
}

@media (max-width: 768px) {
    .task-queue-panel {
        top: 10px;
        right: 10px;
        width: min(420px, calc(100vw - 20px));
        max-height: calc(100vh - 20px);
    }
}

.task-queue-panel.collapsed .task-queue-body {
    display: none;
}

.task-queue-item {
    border: 1px solid var(--border-color-light);
    border-radius: 8px;
    padding: 8px 10px;
    background: #fff;
}

.task-queue-item.running {
    border-color: #91caff;
    background: #f0f8ff;
}

.task-queue-item.success {
    border-color: #b7eb8f;
    background: #f6ffed;
}

.task-queue-item.error {
    border-color: #ffccc7;
    background: #fff2f0;
}

.task-queue-item-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.task-queue-item-title {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 600;
}

.task-queue-status {
    font-size: 12px;
    color: var(--text-secondary);
}

.task-queue-item-desc {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.task-queue-item-bottom {
    margin-top: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-tertiary);
}

.task-queue-inline-actions {
    display: inline-flex;
    gap: 6px;
}

.task-queue-inline-btn {
    border: none;
    background: transparent;
    color: var(--feishu-primary);
    cursor: pointer;
    font-size: 11px;
    padding: 0;
}

.task-queue-inline-btn:hover {
    text-decoration: underline;
}

.task-queue-error {
    margin-top: 6px;
    font-size: 11px;
    color: #cf1322;
    line-height: 1.5;
}

.task-queue-empty {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 12px;
    padding: 12px 0;
}

@keyframes loading-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes flip-sand {
    0%, 100% { transform: rotateX(0deg); }
    50% { transform: rotateX(180deg); }
}

.loading-spinner {
    display: inline-block;
    animation: spin 1s linear infinite;
}

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

/* ==================== 标签页 ==================== */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    width: fit-content;
}

.tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    background: transparent;
}

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

.tab.active {
    background: var(--bg-primary);
    color: var(--feishu-primary);
    box-shadow: var(--shadow-sm);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .menu-toggle {
        display: inline-flex;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 110;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .search-row {
        flex-wrap: wrap;
    }

    .search-input {
        width: 100%;
    }

    .search-actions {
        width: 100%;
    }

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

.search-actions .btn span {
    white-space: nowrap;
}

    .main-content {
        margin-left: 0;
    }

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

    .chat-container {
        height: calc(100vh - var(--header-height) - var(--spacing-lg) * 2);
    }

    .onboarding-step-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .onboarding-step-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .onboarding-drawer .modal-content {
        width: 100vw;
        max-width: 100vw;
        border-radius: 0;
    }

    .onboarding-tour-card {
        width: calc(100vw - 24px);
        left: 12px;
        right: 12px;
        transform: none;
        bottom: 12px;
    }

    .alert-guidance {
        flex-direction: column;
    }

    .guidance-actions {
        width: 100%;
    }

    .login-overlay {
        padding: 16px;
    }

    .auth-panel {
        padding: 20px;
    }

    .profile-modal-content {
        width: calc(100vw - 16px);
        max-height: calc(100dvh - 16px);
    }

    .profile-modal-content .modal-body {
        padding: var(--spacing-lg);
    }

    .profile-modal-content .modal-footer {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .knowledge-detail-content {
        max-width: 100%;
        max-height: 92vh;
    }

    .knowledge-detail-body {
        padding: var(--spacing-lg);
    }

    .knowledge-detail-topic {
        font-size: var(--font-size-xl);
    }

    .knowledge-detail-action-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-height: 820px) {
    .modal-overlay {
        padding: 12px;
    }

    .profile-modal-content {
        max-height: calc(100dvh - 24px);
    }
}

/* ==================== Tab 面板 ==================== */
.tab-panel {
    display: none;
}

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

/* ==================== 工具类 ==================== */
.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--spacing-sm);
}

.gap-4 {
    gap: var(--spacing-lg);
}

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

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

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

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.w-full {
    width: 100%;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ==================== 上传思考专用样式 ==================== */

/* 知识预览卡片 */
.knowledge-preview-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.knowledge-preview-card h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--feishu-primary);
    margin-bottom: var(--spacing-sm);
}

.knowledge-preview-card p,
.knowledge-preview-card li {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-secondary);
}

.knowledge-preview-card ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.knowledge-preview-card li {
    margin-bottom: var(--spacing-xs);
}

/* 原文整理区域 */
#preview-organized {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.8;
    color: var(--text-secondary);
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color-light);
}

/* 成功提示 */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.alert-success {
    background: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.alert-success span:first-child {
    font-size: 16px;
}

.alert-guidance {
    margin-bottom: var(--spacing-xl);
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    background: #FFF4E5;
    border: 1px solid #FFD9A8;
    color: #7A4600;
}

.guidance-content {
    min-width: 0;
}

.guidance-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: #7A4600;
}

.guidance-desc {
    margin-top: 4px;
    font-size: var(--font-size-sm);
    color: #995800;
}

.guidance-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.daily-workflow {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid #D6E5FF;
    background: #F6FAFF;
    border-radius: var(--radius-lg);
}

.daily-workflow-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.daily-workflow-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: #1B4FB2;
}

.daily-workflow-meta {
    font-size: var(--font-size-xs);
    color: #2F65C8;
    background: #E6F0FF;
    border-radius: 999px;
    padding: 4px 10px;
}

.daily-workflow-steps {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.daily-workflow-step {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    color: #7A869A;
    background: #F2F4F7;
    border: 1px solid #E3E8EF;
    transition: all 0.2s ease;
}

.daily-workflow-step-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: #7A869A;
    background: #FFFFFF;
    border: 1px solid #D9DFE7;
}

.daily-workflow-step-text {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.daily-workflow-step.active {
    color: #1D5CD2;
    background: #E9F1FF;
    border-color: #C5D9FF;
}

.daily-workflow-step.active .daily-workflow-step-dot {
    color: #1D5CD2;
    border-color: #9FBEFF;
}

.daily-workflow-step.done {
    color: #1E7A34;
    background: #ECF8EF;
    border-color: #BFE7C9;
}

.daily-workflow-step.done .daily-workflow-step-dot {
    color: #FFFFFF;
    background: #2FA15C;
    border-color: #2FA15C;
}

/* 上传区域 */
#upload-area {
    animation: fadeIn 0.3s ease;
}

#upload-content-input {
    min-height: 300px;
    font-family: var(--font-family);
    line-height: 1.8;
}

/* 处理中状态 */
#upload-processing {
    text-align: center;
    padding: var(--spacing-3xl);
}

#upload-processing .loading-spinner {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-lg);
}

#upload-processing .loading-text {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

#upload-processing .text-tertiary {
    font-size: var(--font-size-sm);
}

/* 结果区域动画 */
#upload-result {
    animation: slideUp 0.4s ease;
}

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

/* 淡入动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}