/* 首页样式 */

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(52, 152, 219, 0.9), rgba(52, 152, 219, 0.8)), url('https://picsum.photos/seed/hero/1920/600') center/cover no-repeat;
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: white;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero .btn {
    margin: 0 10px 10px;
}

/* 训练主题区域 */
.training-topics {
    padding: 60px 0;
}

.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .topics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
        .training-tips {
        padding: 40px 0;
    }
    
    .tips-content {
        padding: 20px 15px;
    }
    
    .training-tips .section-title {
        font-size: 1.7rem;
    }
}

.topic-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.topic-icon {
    width: 80px;
    height: 80px;
    background-color: #f1f9ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.icon-speed::before {
    content: '⚡';
    font-size: 2rem;
}

.icon-tracking::before {
    content: '🎯';
    font-size: 2rem;
}

.icon-memory::before {
    content: '🧠';
    font-size: 2rem;
}

.topic-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.learn-more {
    display: inline-block;
    margin-top: 15px;
    color: #3498db;
    font-weight: 600;
}

.learn-more span {
    transition: margin-left 0.3s ease;
}

.learn-more:hover span {
    margin-left: 5px;
}

/* 注意力重要性区域 */
.importance-section {
    padding: 60px 0;
    background-color: white;
}

.importance-section .container {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.section-content, .section-image {
    flex: 1;
    min-width: 300px;
}

.benefits-list {
    list-style-type: none;
    margin: 20px 0;
}

.benefits-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 10px;
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.section-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}


/* 注意力训练小贴士模块样式 */
.training-tips {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.training-tips .section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
}

.tips-content {
   max-width: 1200px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.tips-content > p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 25px;
    color: #34495e;
}

.tip-item {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid #eee;
}

.tip-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.tip-item h3 {
    color: #3498db;
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.tip-item p {
    line-height: 1.7;
    color: #555;
    font-size: 1rem;
}