/* 全局通用样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Microsoft Yahei", sans-serif;
    color: #333;
    background: #f5f5f5;
}
a {
    text-decoration: none;
    color: #2c82c9;
}
a:hover {
    color: #ff8c00;
}
input:focus, textarea:focus {
    border-color: #2c82c9 !important;
    outline: none;
}
button:hover {
    opacity: 0.9;
}