/* ==================== CSS 变量 ==================== */
:root {
    /* 颜色系统 */
    --bg-primary: #0f0f14;
    --bg-secondary: #16161d;
    --bg-tertiary: #1c1c26;
    --bg-card: #1e1e28;
    --bg-hover: #252532;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    
    --accent-primary: #a855f7;
    --accent-secondary: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
    
    --border-color: #2a2a38;
    --border-light: #3a3a48;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* 尺寸 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    
    /* 动画 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* ==================== 导航栏 ==================== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    height: 60px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.back-btn svg {
    width: 20px;
    height: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.nav-btn svg {
    width: 18px;
    height: 18px;
}

/* ==================== 顶部提示条 ==================== */
.top-banner {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    text-align: center;
    padding: 8px 16px;
    font-size: 13px;
}

/* ==================== 首页样式 ==================== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 24px;
}

.hero-section {
    text-align: center;
    margin-bottom: 60px;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.model-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.model-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(168, 85, 247, 0.1);
}

.model-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.model-icon svg {
    width: 28px;
    height: 28px;
}

.sora-icon {
    background: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
    color: white;
}

.pro-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.image-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.model-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.model-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.model-link {
    color: var(--accent-primary);
    font-size: 14px;
    font-weight: 500;
}

/* ==================== 生成页面布局 ==================== */
.generator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    min-height: calc(100vh - 100px);
}

@media (max-width: 1024px) {
    .generator-layout {
        grid-template-columns: 1fr;
    }
}

/* 面板通用样式 */
.create-panel,
.tasks-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.panel-header svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.task-count {
    color: var(--text-muted);
    font-weight: 400;
}

.refresh-btn {
    margin-left: auto;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.refresh-btn:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.refresh-btn.loading svg {
    animation: spin 1s linear infinite;
}

.refresh-btn svg {
    width: 16px;
    height: 16px;
}

/* 分页栏 */
.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    gap: 12px;
    flex-wrap: wrap;
}

.page-size-select {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.page-size-select select {
    padding: 4px 8px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
}

.pagination-info {
    font-size: 13px;
    color: var(--text-muted);
}

.pagination-btns {
    display: flex;
    gap: 8px;
}

.page-btn {
    padding: 6px 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.page-btn:hover:not(:disabled) {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

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

/* ==================== 模式切换标签 ==================== */
.mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 24px;
}

.mode-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.mode-tab.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
}

.mode-tab svg {
    width: 18px;
    height: 18px;
}

/* ==================== 表单元素 ==================== */
.form-section {
    margin-bottom: 20px;
}

.form-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.ai-enhance-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.ai-enhance-btn:hover {
    background-color: var(--bg-hover);
    color: var(--accent-primary);
}

.ai-enhance-btn svg {
    width: 14px;
    height: 14px;
}

.prompt-textarea {
    width: 100%;
    min-height: 120px;
    padding: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: var(--transition-fast);
}

.prompt-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.prompt-textarea::placeholder {
    color: var(--text-muted);
}

/* ==================== 图片上传区域 ==================== */
.image-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.image-upload-area:hover {
    border-color: var(--accent-primary);
    background-color: rgba(168, 85, 247, 0.05);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.upload-placeholder svg {
    width: 32px;
    height: 32px;
}

.image-preview {
    width: 100%;
    height: 100%;
    position: relative;
}

.image-preview img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.remove-image-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.6);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.remove-image-btn:hover {
    background-color: var(--error);
}

.remove-image-btn svg {
    width: 16px;
    height: 16px;
}

/* 多图片预览网格 */
.images-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 8px;
    padding: 12px;
    width: 100%;
}

.image-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview-item .remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

.image-preview-item:hover .remove-btn {
    opacity: 1;
}

.image-preview-item .remove-btn:hover {
    background-color: var(--error);
}

.image-preview-item .remove-btn svg {
    width: 12px;
    height: 12px;
}

.image-preview-item.uploading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview-item.uploading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 1;
}

.upload-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.btn-small {
    padding: 8px 12px;
    font-size: 12px;
}

.btn-small svg {
    width: 14px;
    height: 14px;
}

.image-count {
    font-size: 12px;
    color: var(--accent-primary);
}

/* 每张图片生成数量控制 */
.videos-per-image-section {
    margin-bottom: 20px;
}

.videos-per-image-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.num-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.num-btn:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.videos-per-image-control input[type="number"] {
    width: 60px;
    height: 36px;
    text-align: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.videos-per-image-control input[type="number"]::-webkit-inner-spin-button,
.videos-per-image-control input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.num-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-left: 8px;
}

.hint {
    font-size: 12px;
    color: var(--accent-primary);
}

/* ==================== 参数网格 ==================== */
.params-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.param-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.param-item label {
    font-size: 12px;
    color: var(--text-muted);
}

.param-item select {
    padding: 10px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.param-item select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ==================== 开关选项 ==================== */
.toggle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.toggle-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.toggle-item span {
    font-size: 12px;
    color: var(--text-secondary);
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-hover);
    border-radius: 24px;
    transition: var(--transition-fast);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-gradient);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* ==================== 生成按钮 ==================== */
.generate-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.generate-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.3);
}

.generate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.generate-btn svg {
    width: 20px;
    height: 20px;
}

/* ==================== 任务列表 ==================== */
.tasks-container {
    max-height: calc(100vh - 250px);
    overflow-y: auto;
}

.empty-tasks {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    height: 300px;
    color: var(--text-muted);
}

.empty-tasks svg {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

/* 任务卡片 - 紧凑横向布局 */
.task-card {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 10px;
    transition: var(--transition-fast);
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.task-card:hover {
    border-color: var(--border-light);
}

/* 左侧缩略图区域 */
.task-thumb-area {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-hover);
    cursor: pointer;
    position: relative;
}

.task-thumb-area video,
.task-thumb-area img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.task-thumb-area .play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

.task-thumb-area:hover .play-overlay {
    opacity: 1;
}

.task-thumb-area .play-overlay svg {
    width: 28px;
    height: 28px;
    color: white;
}

.task-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.task-thumb-placeholder svg {
    width: 24px;
    height: 24px;
}

/* 右侧内容区域 */
.task-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

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

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

.task-status {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
    flex-shrink: 0;
}

.task-status.pending {
    background-color: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
}

.task-status.processing {
    background-color: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.task-status.success {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.task-status.failed {
    background-color: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.task-progress {
    margin: 2px 0;
}

.progress-bar {
    height: 3px;
    background-color: var(--bg-hover);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.task-meta {
    display: flex;
    gap: 12px;
    font-size: 11px;
    color: var(--text-muted);
}

/* 操作按钮 - 图标式 */
.task-actions {
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

.task-icon-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.task-icon-btn.primary {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
}

.task-icon-btn.primary:hover {
    opacity: 0.9;
}

.task-icon-btn svg {
    width: 14px;
    height: 14px;
}

/* 兼容旧的按钮样式 */
.task-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    background-color: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

/* 隐藏旧的大缩略图 */
.task-thumbnail {
    display: none;
}

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

.task-btn.primary {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
}

.task-btn.primary:hover {
    opacity: 0.9;
}

.task-btn svg {
    width: 14px;
    height: 14px;
}

/* 批量操作栏 */
.batch-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
}

.checkbox-wrapper input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-light);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark {
    background: var(--accent-gradient);
    border-color: transparent;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

.selected-count {
    font-size: 12px;
    color: var(--text-muted);
    flex: 1;
}

.batch-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background-color: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.batch-btn:hover:not(:disabled) {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

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

.batch-btn.danger:hover:not(:disabled) {
    background-color: var(--error);
    border-color: var(--error);
}

.batch-btn svg {
    width: 14px;
    height: 14px;
}

/* 任务卡片复选框 - 紧凑布局 */
.task-checkbox {
    flex-shrink: 0;
    align-self: center;
}

.task-checkbox .checkmark {
    width: 18px;
    height: 18px;
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-light);
}

.task-card.selected {
    border-color: var(--accent-primary);
    background-color: rgba(168, 85, 247, 0.05);
}

/* ==================== 弹窗样式 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
}

.video-modal {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

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

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.input-with-btn {
    display: flex;
    gap: 8px;
}

.input-with-btn input {
    flex: 1;
}

.icon-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.icon-btn svg {
    width: 20px;
    height: 20px;
}

.form-actions {
    display: flex;
    gap: 12px;
}

.btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    opacity: 0.9;
}

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

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

.status-message {
    margin-top: 16px;
    padding: 12px;
    border-radius: var(--radius-md);
    font-size: 13px;
    text-align: center;
}

.status-message.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-message.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* 视频播放器 */
#videoPlayer {
    width: 100%;
    border-radius: var(--radius-md);
    background-color: black;
}

.video-actions {
    margin-top: 16px;
    display: flex;
    justify-content: center;
}

/* ==================== Toast 提示 ==================== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 24px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
}

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

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--error);
}

.toast.warning {
    border-color: var(--warning);
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

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

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }
    
    .main-content {
        padding: 40px 16px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .generator-layout {
        padding: 16px;
    }
    
    .params-grid,
    .toggle-grid {
        grid-template-columns: 1fr;
    }
    
    .mode-tabs {
        grid-template-columns: 1fr;
    }
}

/* ==================== 加载动画 ==================== */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ==================== 脉冲动画 ==================== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}