/* 加入我们页面主体样式 */
.join-main {
    margin-top: 100px;
    padding: 40px 20px;
    background: #f9f9f9;
    min-height: calc(100vh - 200px);
}

.join-container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.join-container h2 {
    text-align: center;
    color: #333;
    font-size: 32px;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

/* 表单样式 */
.join-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #c41230;
    box-shadow: 0 0 5px rgba(196,18,48,0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background: #c41230;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover {
    background: #a00e26;
}

/* 表单验证样式 */
.form-group input:invalid,
.form-group textarea:invalid {
    border-color: #ff4444;
}

.form-group input:invalid:focus,
.form-group textarea:invalid:focus {
    box-shadow: 0 0 5px rgba(255,68,68,0.2);
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .join-container {
        padding: 20px;
    }
    
    .join-container h2 {
        font-size: 24px;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 14px;
    }
    
    .submit-btn {
        font-size: 14px;
        padding: 12px;
    }
}