/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", Arial, sans-serif;
}
body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: #0052cc;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #0052cc;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn:hover {
    background: #003d99;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,82,204,0.2);
}
.btn-red {
    background: #e53e3e;
}
.btn-red:hover {
    background: #c53030;
}
.form-box {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.input {
    width: 100%;
    padding: 12px 15px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    transition: border 0.3s;
}
.input:focus {
    outline: none;
    border-color: #0052cc;
}
/* 版权 */
.copyright {
    text-align: center;
    padding: 20px 0;
    color: #666;
    font-size: 14px;
}