.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.login-title {
    font-size: 28px;
    color: #333;
    margin: 0;
    font-weight: 300;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.9);
    color: #6c757d;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.logout-btn:hover {
    background: white;
    color: #495057;
    border-color: #dee2e6;
}

.login-subtitle {
    color: #6c757d;
    margin-bottom: 30px;
    font-size: 16px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #495057;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.password-input-container {
    position: relative;
}

.password-toggle-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: #6c757d;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.password-toggle-btn:hover {
    background-color: rgba(102, 126, 234, 0.1);
    color: #667eea;
    transform: translateY(-50%) scale(1.05);
}

.password-toggle-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
    background: white;
    cursor: pointer;
}

.login-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.demo-info {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    text-align: left;
}

.demo-info h4 {
    margin: 0 0 10px 0;
    color: #495057;
    font-size: 14px;
}

.demo-info p {
    margin: 5px 0;
    font-size: 13px;
    color: #6c757d;
}

/* 悬浮提示窗样式 */
.toast-notification {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: white;
    border-radius: 12px;
    padding: 16px 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90vw;
    min-width: 280px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-notification.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast-notification.success {
    border-left: 4px solid #28a745;
}

.toast-notification.error {
    border-left: 4px solid #dc3545;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-success .toast-icon {
    color: #28a745;
}

.toast-error .toast-icon {
    color: #dc3545;
}

.toast-message {
    font-size: 14px;
    color: #333;
    line-height: 1.4;
    flex: 1;
    font-weight: 500;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 0 0 12px 12px;
    overflow: hidden;
}

.toast-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 100%;
    animation: progress 1s linear forwards;
}

@keyframes progress {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
        margin: 10px;
    }

    .login-title {
        font-size: 24px;
    }

    .toast-notification {
        top: 15px;
        min-width: 260px;
        max-width: 95vw;
        padding: 14px 20px;
        font-size: 13px;
    }

    .toast-icon {
        font-size: 18px;
    }
}