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

body {
    font-family: "Arial", "Microsoft YaHei", sans-serif;
    background-color: #e6f2e6;
    color: #333;
    line-height: 1.6;
    text-align: center;
    padding: 50px 20px;
}

header {
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    color: #2e7d32;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    color: #555;
}

main img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
}

button {
    background-color: #2e7d32;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

button:hover {
    background-color: #1b5e20;
}

section.tips {
    margin-top: 30px;
}

section.tips h2 {
    color: #2e7d32;
    margin-bottom: 10px;
}

section.tips ul {
    list-style-type: disc;
    text-align: left;
    display: inline-block;
    padding-left: 20px;
    margin-top: 10px;
}

footer {
    margin-top: 50px;
    font-size: 0.9rem;
    color: #555;
}