body {
    background-color: #121212;
    color: #ffffff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #1f1f1f;
    padding: 10px 0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 0;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
}

.hero, .about, .portfolio, .project-detail, .contact {
    text-align: center;
    padding: 50px 20px;
}

.project {
    background-color: #1f1f1f;
    margin: 20px 0;
    padding: 20px;
    border-radius: 8px;
}

.project h2 {
    margin: 0 0 10px 0;
}

.project p {
    margin: 0;
}

footer {
    background-color: #1f1f1f;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

.project-detail img {
    margin-top: 20px;
    border-radius: 8px;
}

.contact ul {
    list-style: none;
    padding: 0;
}

.contact ul li {
    margin: 10px 0;
}

.contact form {
    margin-top: 20px;
}

.contact form label {
    display: block;
    margin: 10px 0 5px 0;
}

.contact form input,
.contact form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #1f1f1f;
    border-radius: 4px;
    background-color: #333;
    color: #fff;
}

.contact form input[type="submit"] {
    background-color: #1f1f1f;
    cursor: pointer;
}

/* 美化下载按钮 */
.download-button {
    display: inline-block;
    padding: 10px 20px;
    margin-top: 10px;
    font-size: 16px;
    color: #ffffff;
    background-color: #007BFF;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.download-button:hover {
    background-color: #0056b3;
}
main {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
    background-color: #1e1e1e;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.forum h1 {
    color: #ffcc00;
}

.forum p {
    font-size: 18px;
    line-height: 1.6;
}

footer {
    background-color: #1e1e1e;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

button {
    background-color: #ffcc00;
    border: none;
    color: #1e1e1e;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #ffdd33;
}

iframe {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

#Layer1 {
	position:absolute;
	width:200px;
	height:115px;
	z-index:1;
	left: 849px;
	top: 236px;
}
.STYLE1 {
	color: #FF0000;
	font-weight: bold;
}
.STYLE2 {color: #CC0000}