/* 基础样式设置 */
:root {
    --primary-color: #4a6bff;
    --primary-hover: #3551cc;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --danger-color: #dc3545;
    --danger-hover: #bd2130;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --border-color: #dee2e6;
    --text-color: #212529;
    --panel-bg: white;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 500;
}

.subtitle {
    color: var(--secondary-color);
    font-weight: 300;
}

/* 容器样式 */
.container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    flex: 1;
}

.panel {
    background-color: var(--panel-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
    transition: var(--transition);
}

.settings-panel {
    flex: 1;
    min-width: 300px;
}

.result-panel {
    flex: 2;
    min-width: 600px;
    display: flex;
    flex-direction: column;
}

h2, h3 {
    margin-bottom: 20px;
    color: var(--dark-bg);
    font-weight: 500;
}

/* 图像上传样式 */
.image-upload {
    margin-bottom: 25px;
}

.upload-label {
    display: block;
    cursor: pointer;
}

#dragArea {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
    background-color: var(--light-bg);
}

#dragArea:hover, #dragArea.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(74, 107, 255, 0.05);
}

#uploadIcon {
    font-size: 32px;
    display: block;
    margin-bottom: 10px;
}

#imageInput {
    display: none;
}

/* 设置组样式 */
.setting-group {
    margin-bottom: 20px;
}

.setting-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

/* 滑块样式 */
.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 5px;
    background: #d3d3d3;
    outline: none;
    transition: var(--transition);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
    background: var(--primary-hover);
    transform: scale(1.1);
}

/* 单选按钮样式 */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}

.radio-label input {
    display: none;
}

.radio-custom {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    margin-right: 10px;
    display: inline-block;
    position: relative;
    transition: var(--transition);
}

.radio-label input:checked + .radio-custom {
    border-color: var(--primary-color);
}

.radio-label input:checked + .radio-custom::after {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    top: 2px;
    left: 2px;
}

/* 数字输入框样式 */
.number-input {
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    font-size: 16px;
    transition: var(--transition);
}

.number-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 107, 255, 0.2);
}

/* 图像显示样式 */
.image-container {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex: 1;
}

.image-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.image-display {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--light-bg);
    min-height: 300px;
}

.image-display img, .image-display canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.placeholder-text {
    color: var(--secondary-color);
    font-style: italic;
}

/* 信息显示样式 */
.info-container {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    align-items: center;
}

.info-block {
    display: flex;
    gap: 20px;
}

.info-item {
    background-color: var(--light-bg);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-item span:last-child {
    font-weight: bold;
    color: var(--primary-color);
}

.cluster-colors {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.color-box {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* 按钮控制样式 */
.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px auto;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    min-width: 120px;
}

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

.primary-btn:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

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

.secondary-btn:hover:not(:disabled) {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
}

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

.danger-btn:hover {
    background-color: var(--danger-hover);
    transform: translateY(-2px);
}

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

/* 页脚样式 */
footer {
    margin-top: 30px;
    text-align: center;
    color: var(--secondary-color);
    font-size: 14px;
    padding: 20px 0;
}

/* 通知样式 */
.notification {
    position: fixed;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--dark-bg);
    color: white;
    padding: 12px 25px;
    border-radius: 30px;
    box-shadow: var(--shadow);
    transition: bottom 0.3s ease;
    z-index: 1000;
}

.notification.show {
    bottom: 20px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .container {
        flex-direction: column;
    }
    
    .settings-panel, .result-panel {
        width: 100%;
    }
    
    .image-container {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .controls {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .info-container {
        flex-direction: column;
        gap: 15px;
    }
}