/* Reset and Base Styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

/* Login Container */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f5f5f5;
}

/* Login Box */
.login-box {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
}

/* Login Header */
.login-header {
    margin-bottom: 20px;
}

.login-header h1 {
    font-size: 24px;
    color: #333;
    margin-top: 10px;
}

.login-logo {
    width: 80px;
    height: auto;
}

/* Login Tabs */
.login-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    color: #666;
    border-bottom: 2px solid transparent;
}

.tab.active {
    color: #1890ff;
    border-bottom-color: #1890ff;
}

/* Login Form */
.login-form {
    display: none;
}

.login-form.active {
    display: block;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.captcha-input {
    display: flex;
    align-items: center;
}

.captcha-input input {
    flex: 1;
    margin-right: 10px;
}

.captcha-img {
    width: 100px;
    height: 40px;
    cursor: pointer;
}

.remember-group {
    display: flex;
    align-items: center;
}

.remember-group input {
    width: auto;
    margin-right: 10px;
}

.login-btn, .qq-login-btn {
    width: 100%;
    padding: 12px;
    background-color: #1890ff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-btn:hover, .qq-login-btn:hover {
    background-color: #40a9ff;
}

.qq-login-btn i {
    margin-right: 8px;
}

.qq-login-tip {
    margin: 15px 0;
    color: #888;
    font-size: 14px;
}

/* Login Footer */
.login-footer {
    margin-top: 20px;
    color: #999;
    font-size: 12px;
}

/* 错误提示样式 */
.login-error {
    background-color: #fff2f0;
    border: 1px solid #ffccc7;
    color: #ff4d4f;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    text-align: left;
    display: none;
}