/* assets/css/responsive.css */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 1200px) {
    .nav-links > a, .nav-dropdown-toggle {
        padding: 8px 10px;
        font-size: 14px;
    }
    .nav-actions .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    .logo-main {
        font-size: 20px;
    }
    .logo-sub {
        font-size: 9px;
    }
    .nav {
        gap: 8px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 80px;
        --spacing-lg: 48px;
        --spacing-md: 24px;
        --header-height: 64px;
    }

    .section-title {
        font-size: 28px;
    }

    .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }

    /* Mobile Nav */
    .mobile-menu-btn {
        display: block;
    }

    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--bg-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        border-top: 1px solid var(--border-light);
        flex: none;
        justify-content: flex-start;
        min-width: 0;
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0;
        min-width: 0;
        max-width: 100%;
    }

    .nav-links > a {
        display: block;
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
        font-size: 16px;
        border-radius: 0;
    }

    .nav-links .nav-dropdown-toggle {
        display: flex !important;
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
        font-size: 16px;
        border-radius: 0;
        justify-content: space-between !important;
        align-items: center;
    }

    .nav-slider {
        display: none !important;
    }

    .nav-links > a.active, .nav-links .nav-dropdown-toggle.active {
        border-left: 4px solid var(--primary-color);
        background: rgba(0, 136, 204, 0.05);
        color: var(--text-main);
    }
    
    .nav-links > a.active::before, .nav-links .nav-dropdown-toggle.active::before {
        display: none; /* 移动端隐藏底部下划线 */
    }

    .nav-dropdown {
        width: 100%;
        display: block;
    }

    .nav-dropdown-toggle {
        width: 100%;
        justify-content: space-between !important;
    }

    .nav-dropdown-toggle::after {
        transform: rotate(0deg) !important;
        transition: transform 0.3s ease;
    }

    .nav-dropdown.active > .nav-dropdown-toggle::after {
        transform: rotate(180deg) !important;
    }

    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-bottom: 1px solid var(--border-light);
        border-radius: 0;
        padding: 0;
        min-width: 100%;
        background: rgba(0, 0, 0, 0.02);
        display: none;
    }

    .nav-dropdown:hover .nav-dropdown-menu {
        transform: none;
    }

    .nav-dropdown.active .nav-dropdown-menu {
        display: block;
    }

    .nav-dropdown-menu a {
        padding: 12px 16px 12px 32px !important;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-dropdown-menu a:last-child {
        border-bottom: none;
    }

    .nav-actions {
        width: 100%;
        flex-direction: column;
        margin-top: var(--spacing-md);
    }

    .nav-actions .btn {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    /* Download Section Responsive */
    .download-tabs {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    
    .download-tabs.inline-flex-override {
        display: flex !important;
    }
    
    .download-tab {
        justify-content: center;
    }
    
    .os-tabs {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 12px;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
    }
    
    .os-tab {
        flex-shrink: 0;
    }
    
    .download-card-grid {
        grid-template-columns: 1fr;
    }
    
    .dl-card {
        grid-column: 1 / -1 !important;
    }
    
    .sys-req-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    /* SyClaw 下载区表格：保持 table 布局，由页面样式控制换行 */
    .syclaw-page .sys-req-table {
        display: table;
        overflow-x: visible;
        white-space: normal;
    }
    
    .code-block {
        font-size: 12px;
        padding: 12px;
    }
    
    .solution-row-content {
        padding: 24px 16px !important;
    }
}