/* 百度网盘充值系统 - 响应式 (美化版) */

@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-w: 100%;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        overflow-x: auto;
        background: linear-gradient(135deg, #0f172a, #1e293b);
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    }

    .sidebar-logo {
        padding: 12px 16px;
        border-bottom: none;
        flex-shrink: 0;
    }

    .sidebar-logo::after { display: none; }

    .sidebar-logo svg { width: 28px; height: 28px; }
    .sidebar-logo span { font-size: 15px; }

    .sidebar-nav {
        display: flex;
        padding: 0 8px;
        gap: 2px;
    }

    .nav-item {
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        font-size: 13px;
        white-space: nowrap;
        margin-bottom: 0;
    }

    .nav-item.active::before { display: none; }

    .nav-item.active {
        background: rgba(13, 148, 136, 0.25);
    }

    .sidebar-footer { display: none; }

    .layout {
        flex-direction: column;
    }

    .main-content {
        margin-left: 0;
        padding: 20px 16px;
    }

    .main-content::before { display: none; }

    .page-title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .page-title::after { display: none; }

    .product-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .product-card {
        padding: 20px 14px;
        height: auto;
        min-height: 140px;
    }

    .product-price { font-size: 28px; }

    /* 标签页响应式 */
    .recharge-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .recharge-tab {
        flex-shrink: 0;
    }

    /* 弹窗响应式 */
    .qr-modal {
        width: 94vw;
        padding: 28px 20px;
        min-height: auto;
        border-radius: var(--radius-lg);
    }

    .qr-modal-img img {
        width: 180px;
        height: 180px;
    }

    .qr-modal-price { font-size: 32px; }
    .qr-modal-product { font-size: 18px; }

    /* 登录页响应式 */
    .auth-box {
        padding: 32px 24px;
        width: 94vw;
    }

    .auth-box h2 { font-size: 22px; }

    /* Cookie管理响应式 */
    .cookie-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .cookie-item-actions {
        align-self: flex-end;
    }

    /* 配置页响应式 */
    .invite-link-form {
        flex-direction: column;
    }

    .account-card {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: 16px 12px;
    }

    .card {
        padding: 18px 16px;
    }
}