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

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.8;
    padding: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid #2c5282;
}

.header h1 {
    font-size: 28px;
    color: #2c5282;
    margin-bottom: 10px;
}

.header p {
    font-size: 16px;
    color: #666;
}

.content {
    margin: 30px 0;
}

.content h2 {
    font-size: 20px;
    color: #2c5282;
    margin: 25px 0 15px 0;
    padding-left: 10px;
    border-left: 4px solid #2c5282;
}

.content ul {
    padding-left: 30px;
    margin-bottom: 15px;
}

.content ul li {
    font-size: 16px;
    color: #333;
    margin: 8px 0;
    list-style: disc;
}

.tips {
    margin-top: 50px;
    padding: 20px;
    background: #e8f4f8;
    border-radius: 8px;
    text-align: center;
}

.tips p {
    font-size: 17px;
    color: #2d3748;
    font-weight: 500;
}