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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
    overflow: hidden;
}

#game-container {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 按钮样式 */
.btn {
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    border: none;
    border-radius: 50px;
    color: white;
    padding: 15px 30px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    margin: 10px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(1px);
}

/* 菜单样式 */
.menu-container {
    text-align: center;
    color: white;
}

.menu-title {
    font-size: 48px;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.mode-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mode-button {
    width: 300px;
    margin: 15px 0;
    background: linear-gradient(45deg, #6a11cb, #2575fc);
}

/* 游戏UI */
.game-ui {
    position: absolute;
    top: 20px;
    left: 20px;
    color: white;
    font-size: 20px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 调色板 */
.color-palette {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.color-picker {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 3px solid white;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s;
}

.color-picker:hover {
    transform: scale(1.1);
}

/* 滴管工具 */
.eyedropper {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-size: 24px;
}

/* 目标色显示 */
.target-color {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 80px;
    height: 80px;
    border-radius: 10px;
    border: 3px solid white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* 滑块容器 */
.slider-container {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    gap: 20px;
}

.slider {
    width: 150px;
}

.slider-label {
    color: white;
    margin-bottom: 5px;
    font-weight: bold;
}

/* 作品画廊 */
.gallery {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 15px;
    max-width: 80%;
    max-height: 80%;
    overflow-y: auto;
}

.gallery-title {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.gallery-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.gallery-item {
    width: 150px;
    height: 150px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}