/* ==================== 全局样式 ==================== */
:root {
    --primary: #635bff;
    --primary-dark: #5851db;
    --primary-light: #7d75ff;
    --success: #00d4a0;
    --success-dark: #00b88a;
    --danger: #ff5a5f;
    --warning: #ffb800;
    --bg-dark: #0f1117;
    --bg-card: #1a1d28;
    --bg-input: #252938;
    --bg-hover: #2d3142;
    --text-primary: #e4e6eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border: #2d3142;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
}

#app {
    display: flex;
    min-height: 100vh;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
    width: 220px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.logo {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    border-bottom: 1px solid var(--border);
}

.logo i {
    font-size: 22px;
}

.nav {
    padding: 12px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    margin-bottom: 4px;
    font-size: 14px;
}

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

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

.nav-item i {
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.platform-list {
    margin-bottom: 12px;
}

.platform-title {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.platform-tag {
    display: inline-block;
    padding: 2px 8px;
    margin: 2px;
    font-size: 11px;
    background: var(--bg-input);
    border-radius: 4px;
    color: var(--text-secondary);
}

.version {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
}

/* ==================== 主内容 ==================== */
.main-content {
    flex: 1;
    margin-left: 220px;
    padding: 32px;
    max-width: 900px;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-title i {
    color: var(--primary);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

/* ==================== 输入区 ==================== */
.input-section {
    margin-bottom: 24px;
}

.input-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

#urlInput {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    color: var(--text-primary);
    font-size: 14px;
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
    transition: border-color 0.2s;
}

#urlInput:focus {
    outline: none;
    border-color: var(--primary);
}

#urlInput::placeholder {
    color: var(--text-muted);
}

.input-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99,91,255,0.3);
}

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

.btn-success:hover:not(:disabled) {
    background: var(--success-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,212,160,0.3);
}

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

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

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* ==================== 快捷操作 ==================== */
.quick-links {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
    flex-wrap: wrap;
}

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

.link-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}

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

.whisper-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    user-select: none;
}

.whisper-toggle input {
    accent-color: var(--primary);
}

/* ==================== 加载动画 ==================== */
.loading-overlay {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

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

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

/* ==================== 结果展示 ==================== */
.result-section {
    margin-top: 24px;
    animation: fadeIn 0.3s ease;
}

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

.result-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 10px;
}

.platform-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

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

.result-body {
    padding: 20px;
}

.result-item {
    margin-bottom: 20px;
}

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

.result-item label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-item label i {
    margin-right: 4px;
}

.result-content {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    word-break: break-word;
}

.result-content.selectable {
    background: var(--bg-input);
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    white-space: pre-wrap;
    max-height: 300px;
    overflow-y: auto;
}

.result-content.transcript {
    border-left: 3px solid var(--success);
}

/* 标签 */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-input);
    border-radius: 4px;
    font-size: 12px;
    color: var(--primary-light);
    cursor: pointer;
    transition: all 0.2s;
}

.tag:hover {
    background: var(--primary);
    color: white;
}

/* 视频预览 */
.video-preview video {
    width: 100%;
    max-height: 400px;
    border-radius: var(--radius-sm);
    background: #000;
}

.video-preview .cover-img {
    width: 100%;
    border-radius: var(--radius-sm);
}

.video-download-info {
    margin-top: 10px;
    padding: 12px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

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

/* ==================== 提示 ==================== */
.error-toast, .success-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    font-size: 14px;
    max-width: 400px;
}

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

.error-toast {
    background: var(--danger);
    color: white;
}

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

/* ==================== 历史记录 ==================== */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
}

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

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

.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.history-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    gap: 14px;
    transition: all 0.2s;
}

.history-card:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.history-cover {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: var(--bg-input);
    flex-shrink: 0;
}

.history-cover-placeholder {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 24px;
    flex-shrink: 0;
}

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

.history-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.history-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.history-desc {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.history-actions {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

#pageInfo {
    color: var(--text-secondary);
    font-size: 13px;
}

/* ==================== Tab 切换 ==================== */
.tab-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    padding: 4px;
    width: fit-content;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

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

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

/* ==================== 上传区 ==================== */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--bg-input);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99, 91, 255, 0.08);
}

.upload-zone i {
    font-size: 48px;
    color: var(--primary);
    opacity: 0.7;
    margin-bottom: 12px;
}

.upload-title {
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.upload-hint {
    font-size: 12px;
    color: var(--text-muted);
}

.upload-file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-top: 12px;
}

.upload-file-icon {
    font-size: 28px;
    color: var(--primary);
}

.upload-file-detail {
    flex: 1;
    min-width: 0;
}

.upload-file-name {
    font-size: 14px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upload-file-size {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.upload-note {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 14px;
    background: rgba(99, 91, 255, 0.08);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

.upload-note i {
    color: var(--primary);
    flex-shrink: 0;
}

/* ==================== 模型选择器 ==================== */
.model-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-label {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

.model-select {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

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

.model-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 91, 255, 0.2);
}

.model-select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    
    .sidebar .logo span,
    .nav-item span,
    .platform-list,
    .version {
        display: none;
    }
    
    .main-content {
        margin-left: 60px;
        padding: 16px;
    }
    
    .input-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .result-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .history-card {
        flex-direction: column;
    }
    
    .history-cover, .history-cover-placeholder {
        width: 100%;
        height: 180px;
    }
}