body {
    background: #eaeaea;
    font-family: 'San Francisco', 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.mac-window {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    width: 400px;
    overflow: hidden;
}
.mac-title-bar {
    background: #f5f5f7;
    height: 36px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
}
.mac-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}
.mac-dot.red { background: #ff5f56; }
.mac-dot.yellow { background: #ffbd2e; }
.mac-dot.green { background: #27c93f; }
.mac-title {
    font-weight: bold;
    margin-left: 16px;
    color: #555;
    font-size: 15px;
}
.mac-content {
    padding: 32px 24px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
label {
    font-size: 15px;
    color: #333;
    margin-bottom: 4px;
}
input[type="text"] {
    padding: 10px 12px;
    border: 1px solid #d1d1d1;
    border-radius: 6px;
    font-size: 15px;
    outline: none;
    transition: border 0.2s;
}
input[type="text"]:focus {
    border-color: #007aff;
}
button {
    background: #007aff;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 0;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}
button:hover {
    background: #005ecb;
}
.result-area {
    margin-top: 10px;
    font-size: 15px;
    color: #007aff;
    word-break: break-all;
}