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

body {
    font-family: 'Roboto', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* 树的容器 */
.tree-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    height: 80vh;
    margin: 0 auto;
}

/* 树的背景图 */
.tree-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="900" height="700" viewBox="0 0 900 700"><rect width="900" height="700" fill="%2387CEEB"/><path d="M450,600 Q300,500 350,400 Q250,350 300,250 Q350,150 450,100 Q550,150 600,250 Q650,350 550,400 Q600,500 450,600" fill="%23855E42"/><ellipse cx="450" cy="100" rx="150" ry="90" fill="%23FFD700"/><ellipse cx="300" cy="250" rx="100" ry="70" fill="%23FFD700"/><ellipse cx="600" cy="250" rx="100" ry="70" fill="%23FFD700"/><ellipse cx="350" cy="400" rx="120" ry="80" fill="%23FFD700"/><ellipse cx="550" cy="400" rx="120" ry="80" fill="%23FFD700"/></svg>');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

/* 果实样式 */
.fruit {
    position: absolute;
    width: 40px;
    height: 40px;
    background-color: transparent;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fruit:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

/* 果实变种 - 全部设为透明 */
.fruit-1, .fruit-2, .fruit-3, .fruit-4, .fruit-5 {
    background-color: transparent;
}

/* 博客果实特殊样式 */
.fruit-6 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: 2px solid #ffffff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.fruit-6:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    transform: scale(1.3);
}

/* 悬停提示框样式 */
.tooltip {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    max-width: 200px;
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* 页脚样式 */
footer {
    width: 100%;
    padding: 20px;
    text-align: center;
    background-color: #f8f9fa;
    border-top: 1px solid #e9ecef;
    margin-top: auto;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tree-container {
        height: 60vh;
    }
    
    .fruit {
        width: 30px;
        height: 30px;
    }
}

@media (max-width: 480px) {
    .tree-container {
        height: 50vh;
    }
    
    .fruit {
        width: 25px;
        height: 25px;
    }
}