/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* 背景 */
body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

/* 卡片 */
.container {
    width: 350px;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* 标题 */
h2 {
    text-align: center;
    margin-bottom: 20px;
}

/* 输入框 */
input {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    outline: none;
    transition: 0.3s;
}

input:focus {
    border-color: #667eea;
    box-shadow: 0 0 5px rgba(102,126,234,0.5);
}

/* 按钮 */
button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 6px;
    background: #667eea;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #5a67d8;
}

/* 注册链接 */
.link {
    text-align: center;
    margin-top: 10px;
}

.link a {
    color: #667eea;
    text-decoration: none;
}

.link a:hover {
    text-decoration: underline;
}

/* 手机适配 */
@media (max-width: 400px) {
    .container {
        width: 90%;
        padding: 20px;
    }
}
.btn-secondary {
    display: block;
    margin-top: 10px;
    padding: 12px;
    text-align: center;
    background: #ccc;
    color: #333;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}

.btn-secondary:hover {
    background: #bbb;
    
    .btn-secondary {
    display: block;
    padding: 12px;
    text-align: center;
    background: #ccc;
    color: #333;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 10px;
}

.btn-secondary:hover {
    background: #bbb;
}
}
.tips {
    background: #f5f7ff;
    border-radius: 10px;
    padding: 10px 15px;
    margin-bottom: 15px;
    text-align: left;
}

.tips p {
    margin: 5px 0;
    font-size: 14px;
    color: #555;
}

.tips p:first-child {
    color: #2ecc71; /* 绿色 */
}

.tips p:last-child {
    color: #e67e22; /* 橙色 */
}

.top-info{
    margin-bottom:20px;
    text-align:center;
}

.welcome{
    font-size:18px;
    font-weight:600;
    color:#444;
    white-space:nowrap;
}

.date{
    font-size:15px;
    color:#888;
}