body {
    background: #131115;
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: "Microsoft YaHei", sans-serif;
}
#c1 {
    background: #fbf7fe;
}
#btn, #toggle, #back-btn {
    position: fixed;
    left: 10px;
    padding: 12px 24px;
    font-size: 18px;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}
#btn {
    top: 10px;
    background: #4a2c82;
}
#toggle {
    top: 60px;
    background: #4a2c82;
}
#back-btn {
    top: 110px;
    background: linear-gradient(135deg, #9C27B0, #E91E63);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}
#btn:hover, #toggle:hover {
    background: #5d3a9e;
}
#back-btn:hover {
    background: linear-gradient(135deg, #E91E63, #9C27B0);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}
#stats {
    position: fixed;
    right: 10px;
    top: 10px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border-radius: 5px;
    font-size: 16px;
    z-index: 100;
}
#c1 {
    position: fixed;
    left: 0px;
    top: 0px;
}
#main {
    transform-origin: 0px 0px;
    position: fixed;
    left: 0px;
    top: 0px;
}
#config {
    position: fixed;
    left: 0px;
    top: 120px;
    display: none;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px;
    border-radius: 5px;
    color: white;
    z-index: 100;
    width: 80%;
    max-width: 500px;
}
textarea {
    background: #333;
    color: white;
    border: 1px solid #555;
    border-radius: 5px;
    padding: 5px;
    width: 100%;
    font-family: Consolas, monospace;
}
.button-group {
    margin-top: 10px;
    text-align: center;
}
.button-group button {
    padding: 8px 16px;
    margin: 0 5px;
    background: #4a2c82;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.button-group button:hover {
    background: #5d3a9e;
}