:root {
    --primary-color: #007AFF;
    --background-color: #F5F5F7;
    --card-background: #FFFFFF;
    --text-color: #1D1D1F;
    --border-radius: 12px;
    --spacing: 20px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing);
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

header p {
    color: #666;
}

/* 上传区域样式 */
.upload-area {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    border: 2px dashed #CCCCCC;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.upload-icon {
    width: 48px;
    height: 48px;
    fill: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-hint {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* 预览区域样式 */
.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing);
    margin-top: var(--spacing);
}

.preview-box {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: var(--spacing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.preview-box h3 {
    margin-bottom: 1rem;
}

.image-container {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    border-radius: calc(var(--border-radius) - 4px);
    background-color: #F5F5F7;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.file-info {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.file-info span.smaller {
    color: #34C759;
}

.file-info span.larger {
    color: #FF3B30;
}

/* 控制面板样式 */
.control-panel {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: var(--spacing);
    margin-top: var(--spacing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.quality-control {
    margin-bottom: 1rem;
}

input[type="range"] {
    width: 100%;
    margin: 0.5rem 0;
}

.download-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0, 122, 255, 0.2);
}

.download-btn:hover {
    background-color: #0066CC;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 122, 255, 0.25);
}

.download-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 122, 255, 0.2);
}

@media (max-width: 768px) {
    .preview-container {
        grid-template-columns: 1fr;
    }
}

/* 添加预览容器的过渡效果 */
.preview-container, .control-panel {
    opacity: 0;
    height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.preview-container.show, .control-panel.show {
    opacity: 1;
    height: auto;
    overflow: visible;
}

/* 批量模式开关样式 */
.mode-switch {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* 批量容器样式 */
.batch-container {
    margin-top: var(--spacing);
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: var(--spacing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.batch-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.batch-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.batch-item {
    background-color: var(--background-color);
    border-radius: calc(var(--border-radius) - 4px);
    padding: 0.5rem;
    position: relative;
}

.batch-item img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    border-radius: calc(var(--border-radius) - 6px);
}

.batch-item-info {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #666;
    width: 100%;
    padding: 0.5rem;
}

.batch-item-info .file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: 0.3rem;
}

.batch-item-info .file-size {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 0.3rem;
}

.batch-item-info .compressed-size {
    font-size: 0.8rem;
    transition: color 0.3s ease;
}

.batch-item-status {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    background-color: rgba(0,0,0,0.5);
    color: white;
}

.compress-all-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 8px 16px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.compress-all-btn:hover {
    background-color: #0066CC;
}

/* 修改批量操作按钮样式 */
.batch-actions {
    margin-top: var(--spacing);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* 批量控制面板样式 */
.batch-control-panel {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: var(--spacing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* 批量质量控制样式 */
.batch-quality-control {
    margin-bottom: 1.5rem;
}

/* 按钮基础样式 */
.action-btn {
    width: 100%;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

/* 主要按钮样式 */
.action-btn.primary-btn {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 4px rgba(0, 122, 255, 0.2);
}

.action-btn.primary-btn:hover:not(:disabled) {
    background-color: #0066CC;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 122, 255, 0.25);
}

.action-btn.primary-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 122, 255, 0.2);
}

/* 次要按钮样式 */
.action-btn.secondary-btn {
    background-color: #F5F5F7;
    color: var(--text-color);
    border: 1px solid #D1D1D1;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.action-btn.secondary-btn:hover:not(:disabled) {
    background-color: #FFFFFF;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.action-btn.secondary-btn:active:not(:disabled) {
    background-color: #F0F0F2;
}

/* 禁用状态样式 */
.action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #F5F5F7;
    color: #999;
    border-color: #E5E5E5;
    box-shadow: none;
    transform: none;
}

/* 质量值显示样式 */
#qualityValue,
#batchQualityValue {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    min-width: 48px;
    text-align: center;
    display: inline-block;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 移除旧的按钮样式 */
.compress-all-btn,
.old-download-btn {
    display: none;
}

/* 添加计算中的动画效果 */
@keyframes calculating {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.batch-item-info .compressed-size:contains("计算中") {
    animation: calculating 1.5s infinite;
    color: #666;
}

/* 添加批量项状态样式 */
.batch-item-status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: white;
    background-color: #999; /* 默认颜色 */
    transition: all 0.3s ease;
}

.batch-item-status.waiting {
    background-color: #999;
}

.batch-item-status.pending {
    background-color: rgba(0, 122, 255, 0.3);
    animation: pulse 1.5s infinite;
}

.batch-item-status.compressing {
    background-color: rgba(0, 122, 255, 0.5);
}

.batch-item-status.success {
    background-color: #34C759;
}

.batch-item-status.failed {
    background-color: #FF3B30;
}

/* 添加等待动画 */
@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* 页脚样式 */
footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    text-align: center;
}

footer p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

/* 添加图标 */
footer p::before {
    content: "🔒";
    margin-right: 0.5rem;
    font-size: 1rem;
}

/* 添加加载状态样式 */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
}

/* 错误提示样式 */
.error-message {
    color: #FF3B30;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 主题切换按钮样式 */
.theme-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle {
    background: none;
    border: none;
    padding: 0;
    width: 40px;
    height: 40px;
    cursor: pointer;
    border-radius: 50%;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.theme-toggle:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.sun-icon,
.moon-icon {
    width: 24px;
    height: 24px;
    fill: var(--text-color);
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(-90deg);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .moon-icon,
[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: rotate(0);
}

/* 进度条样式 */
.progress-container {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.progress-bar {
    height: 6px;
    background-color: #E1E1E1;
    border-radius: 3px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
    width: 0;
}

.progress-text {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color);
    text-align: center;
}