* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-color: #4288ff;
    --secondary-color: #f5f7fa;
    --text-color: #333;
    --light-text: #666;
    --border-color: #e0e0e0;
    --success-color: #52c41a;
    --hover-color: #3a7be0;
}

body {
    background-color: #f7f9fc;
    color: var(--text-color);
    line-height: 1.6;
    padding: 10px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

header {
    text-align: center;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #3a7be0 100%);
    color: white;
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    font-weight: 600;
}

header p {
    font-size: 1rem;
}

main {
    padding: 15px;
}

.upload-container {
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 30px 20px;
    text-align: center;
    background-color: var(--secondary-color);
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: 15px;
}

.upload-container:hover, .upload-container.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(66, 136, 255, 0.05);
}

.upload-icon {
    margin-bottom: 15px;
}

.upload-icon img {
    width: 48px;
    height: 48px;
}

.upload-text p {
    margin-bottom: 10px;
    font-size: 1rem;
}

.upload-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}

.upload-button:hover {
    background-color: var(--hover-color);
}

.upload-hint {
    margin-top: 15px;
    color: var(--light-text);
    font-size: 0.85rem;
}

/* Compression options styles */
.compression-options {
    margin-top: 15px;
}

/* 新的布局容器 */
.compression-layout {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 15px;
    align-items: start;
}

.original-preview-container,
.compressed-preview-container,
.settings-container {
    width: 100%;
    background-color: var(--secondary-color);
    border-radius: 8px;
    padding: 15px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

h3 {
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-color);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.preview-box {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    overflow: hidden;
    position: relative;
    background-color: #fafafa;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    cursor: zoom-in;
}

.preview-box img {
    max-width: 100%;
    max-height: 180px;
    display: block;
    object-fit: contain;
}

.compression-reminder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(245, 247, 250, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    text-align: center;
    z-index: 5;
}

.compression-reminder svg {
    margin-bottom: 10px;
}

.compression-reminder p {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.image-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 4px 8px;
    font-size: 0.8rem;
    text-align: center;
}

.setting-group {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    width: 140px;
    font-weight: 500;
    font-size: 0.9rem;
}

.setting-group input[type="range"] {
    flex: 1;
    max-width: 300px;
    margin-right: 10px;
    accent-color: var(--primary-color);
}

.setting-group input[type="number"], 
.setting-group select {
    flex: 1;
    max-width: 180px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.setting-group input:focus, 
.setting-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: auto;
    padding-top: 15px;
    justify-content: center;
}

.primary-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    min-width: 100px;
    transition: background-color 0.3s;
}

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

.secondary-button {
    background-color: white;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    min-width: 100px;
    transition: all 0.3s;
}

.secondary-button:hover {
    background-color: rgba(66, 136, 255, 0.05);
}

.secondary-button:disabled {
    border-color: var(--border-color);
    color: var(--light-text);
    background-color: #f5f5f5;
    cursor: not-allowed;
}

.text-button {
    background: none;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    padding: 8px 15px;
    font-weight: 500;
    transition: color 0.3s;
}

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

footer {
    text-align: center;
    padding: 10px;
    color: var(--light-text);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .compression-layout {
        grid-template-columns: 1fr;
    }
    
    .setting-group label {
        width: 100%;
        margin-bottom: 5px;
    }
    
    .button-group {
        justify-content: space-between;
    }
}

/* 图片预览弹窗样式 */
.modal-container {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    overflow: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-container.show {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
}

.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    max-width: 90%;
    max-height: 90%;
    width: auto;
    overflow: hidden;
    animation: modalZoomIn 0.3s ease;
}

@keyframes modalZoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-content img {
    display: block;
    max-width: 100%;
    max-height: 80vh;
    margin: 0 auto;
}

.modal-info {
    margin-top: 15px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color);
}

.close-button {
    position: absolute;
    top: 10px;
    right: 15px;
    color: #666;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
}

.close-button:hover {
    color: var(--primary-color);
}