/* 响应式设计 */

/* 平板端 (768px - 1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

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

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

/* 移动端 (最大768px) */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .main-nav {
        display: none;
        width: 100%;
        order: 3;
        margin-top: 15px;
    }

    .main-nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-list > li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-list > li > a {
        padding: 15px;
        display: block;
    }

    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--bg-light);
        margin: 0;
        padding: 0;
    }

    .submenu li a {
        padding: 10px 15px 10px 40px;
    }

    .header-right {
        flex: 1;
        justify-content: flex-end;
        gap: 10px;
    }

    .search-box {
        display: none;
    }

    .phone-link,
    .phone {
        font-size: 12px;
    }

    .consult-btn,
    .btn-consult {
        padding: 6px 15px;
        font-size: 12px;
    }

    .mobile-menu-btn,
    .mobile-menu-toggle {
        display: flex;
    }

    .hero-banner {
        padding: 60px 0;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-subtitle-addon {
        font-size: 14px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .solutions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .industry-filter {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 15px;
        font-size: 12px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .consult-panel {
        width: 90%;
        max-width: 350px;
        right: 5%;
    }

    .consult-widget {
        bottom: 20px;
        right: 20px;
    }

    .consult-widget-btn {
        padding: 12px 20px;
        font-size: 14px;
    }
}

/* 小屏移动端 (最大375px) */
@media (max-width: 375px) {
    .hero-title {
        font-size: 20px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .hero-subtitle-addon {
        font-size: 12px;
    }

    .section-title {
        font-size: 20px;
    }

    .product-card,
    .solution-card {
        padding: 20px;
    }

    .product-title,
    .solution-title {
        font-size: 18px;
    }
}