/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 全局变量定义 */
:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --background-color: #F5F5F7;
    --text-color: #1D1D1F;
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

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

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 头部样式 */
header {
    text-align: center;
    margin-bottom: 3rem;
}

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

header p {
    color: #86868B;
    font-size: 1.1rem;
}

/* 上传区域样式 */
.upload-area {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 2px dashed #DEDEDE;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: #F5F5F7;
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.upload-content img {
    width: 50px;
    height: 50px;
}

/* 上传提示文本 */
.upload-tip {
    color: #86868B;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* 压缩控制区域样式 */
.compression-controls {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.quality-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 4px;
    background: #DEDEDE;
    border-radius: 2px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-speed);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

/* 图片列表区域样式 */
.images-list {
    margin-top: 2rem;
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.images-list h3 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.images-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* 单个图片项样式 */
.image-item {
    background: #F5F5F7;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.image-item .preview-container {
    width: 100%;
    aspect-ratio: 1;
    background: white;
    border-radius: calc(var(--border-radius) - 4px);
    overflow: hidden;
    position: relative;
}

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

.image-item .image-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: #86868B;
}

.image-item .filename {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-color);
}

.image-item .compression-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
}

.image-item .status {
    font-size: 0.85rem;
    color: var(--primary-color);
}

.image-item .status.error {
    color: #FF3B30;
}

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

/* 批量操作按钮区域 */
.batch-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* 按钮样式 */
.primary-button, .secondary-button {
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.primary-button {
    background: var(--primary-color);
    color: white;
    width: 100%;
}

.primary-button:hover {
    background: #0056b3;
}

.secondary-button {
    background: #F5F5F7;
    color: var(--primary-color);
    width: 100%;
}

.secondary-button:hover {
    background: #E5E5E7;
}

/* 页脚样式 */
footer {
    text-align: center;
    margin-top: 3rem;
    color: #86868B;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .images-container {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .image-item {
        padding: 0.5rem;
    }
    
    .image-item .image-info,
    .image-item .compression-info {
        font-size: 0.8rem;
    }
    
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
}

/* 聊天框样式 */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: all var(--transition-speed);
}

.chat-header {
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 0.5rem;
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 80%;
    padding: 0.8rem;
    border-radius: var(--border-radius);
    word-wrap: break-word;
}

.user-message {
    align-self: flex-end;
    background: var(--primary-color);
    color: white;
}

.ai-message {
    align-self: flex-start;
    background: #F5F5F7;
    color: var(--text-color);
}

.chat-input {
    padding: 1rem;
    border-top: 1px solid #DEDEDE;
    display: flex;
    gap: 0.5rem;
}

.chat-input textarea {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #DEDEDE;
    border-radius: calc(var(--border-radius) - 4px);
    resize: none;
    font-family: inherit;
    font-size: 0.9rem;
}

.send-button {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: calc(var(--border-radius) - 4px);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.send-button:hover {
    background: #0056b3;
}

/* 聊天框最小化状态 */
.chat-widget.minimized {
    height: 60px;
    cursor: pointer;
}

.chat-widget.minimized .chat-messages,
.chat-widget.minimized .chat-input {
    display: none;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .chat-widget {
        width: 100%;
        height: 100%;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }

    .chat-widget.minimized {
        height: 60px;
    }
}