/* ===================== 登录页面样式 ===================== */
.login-container {
    max-width: 400px;
    margin: 50px auto;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.messages {
    margin-bottom: 20px;
}

.message {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.login-container .form-group {
    margin-bottom: 20px;
}

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

.login-container input[type="text"],
.login-container input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

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

.captcha-image {
    margin-left: 10px;
    cursor: pointer;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.login-container .btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
}

.login-container .btn-primary {
    background: #007bff;
    color: white;
    width: 100%;
}

.login-container .btn-primary:hover {
    background: #0069d9;
}

.form-footer {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
}

.form-footer a {
    color: #007bff;
    text-decoration: none;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* ===================== 注册页面样式 ===================== */
.register-container {
    max-width: 500px;
    margin: 50px auto;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.register-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.register-container .form-group {
    margin-bottom: 20px;
}

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

.register-container input[type="text"],
.register-container input[type="email"],
.register-container input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.avatar-selection {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
}

.avatar-option {
    width: 60px;
    height: 60px;
    cursor: pointer;
}

.avatar-option input[type="radio"] {
    display: none;
}

.avatar-option label {
    display: block;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-radius: 50%;
    overflow: hidden;
}

.avatar-option input[type="radio"]:checked + label {
    border-color: #007bff;
}

.avatar-option img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.register-container .login-button {
    width: 100%;
    padding: 12px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

.register-container .login-button:hover {
    background: #0069d9;
}

.register-container .register-link {
    text-align: center;
    margin-top: 15px;
    color: #666;
}

.register-container .register-link a {
    color: #007bff;
    text-decoration: none;
}

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