/* 手机端样式 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }

    .nav-link, .nav-user {
        display: block;
        text-align: center;
    }

    .main-content {
        margin: 1rem auto;
        padding: 0 0.5rem;
    }

    .form-container {
        margin: 1rem auto;
        padding: 1rem;
    }

    .header-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .order-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .order-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .order-info {
        grid-template-columns: 1fr;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .order-detail-container {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .filter-buttons {
        justify-content: center;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
    }

    .qr-code-actions {
        flex-direction: column;
    }

    /* 移动端表单优化 */
    .form-input {
        font-size: 16px; /* 防止iOS缩放 */
    }

    /* 移动端按钮优化 */
    .btn {
        padding: 1rem;
        font-size: 1.1rem;
    }
}

/* 平板端样式 */
@media (min-width: 769px) and (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .order-info {
        grid-template-columns: repeat(2, 1fr);
    }

    .orders-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 大屏幕优化 */
@media (min-width: 1200px) {
    .nav-container,
    .main-content {
        max-width: 1400px;
    }
}