/* ========== 响应式设计 ========== */

@media (max-width: 768px) {
    .navbar-container {
        padding: 0.75rem 1rem;
    }

    .navbar-menu {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        flex-direction: column;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-duration) var(--transition-timing);
        border-bottom: 1px solid var(--border-color);
        gap: 0;
    }

    .navbar-menu.active {
        max-height: 500px;
    }

    .nav-link {
        padding: 1rem 1.5rem;
        border-radius: 0;
        border-bottom: 1px solid var(--border-color);
        position: relative;
    }

    .nav-link::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 1.5rem;
        right: 1.5rem;
        height: 3px;
        background-color: var(--accent-color);
        border-radius: 1.5px;
        transform: scaleX(0);
        transform-origin: right;
        transition: transform var(--transition-duration) var(--transition-timing);
    }

    .nav-link.active::after,
    .nav-link:hover::after {
        transform: scaleX(1);
        transform-origin: left;
    }

    .nav-link.active {
        background-color: transparent;
        color: var(--accent-color);
    }

    /* 小屏幕上隐藏下拉菜单容器 */
    .navbar-dropdown-container {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    /* Hero 响应式 */
    .hero {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
        gap: 1.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-image {
        height: 250px;
    }

    /* 轮播响应式 */
    .carousel-container {
        height: 350px;
    }

    .carousel-title {
        font-size: 2rem;
    }

    .carousel-subtitle {
        font-size: 1rem;
    }

    .carousel-control {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .carousel-control.prev {
        left: 1rem;
    }

    .carousel-control.next {
        right: 1rem;
    }

    .carousel-indicators {
        bottom: 1rem;
    }

    .indicator {
        width: 10px;
        height: 10px;
    }

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

    .section-content.reverse {
        direction: ltr;
    }

    .section-image {
        height: 250px;
    }

    .intro-section {
        margin: 2rem 0;
        padding: 1rem;
    }

    .sections-container {
        padding: 0 1rem 1rem;
    }

    .section-text h2,
    .section-text h3 {
        font-size: 1.25rem;
    }

    .section-text p {
        font-size: 0.9rem;
    }

    /* 页脚响应式 */
    .footer {
        padding: 2rem 1.5rem;
    }

    .footer-navigation {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        margin-bottom: 2rem;
        padding-bottom: 2rem;
    }

    .footer-nav-column {
        text-align: center;
    }

    .footer-nav-column:last-child {
        grid-column: 1 / -1;
    }

    .footer-nav-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .footer-nav-link {
        padding: 0 0.75rem;
    }

    .footer-nav-link:hover {
        padding-left: 0.75rem;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.25rem;
    }

    .navbar-logo {
        font-size: 1rem;
    }

    /* Hero 响应式 */
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero {
        padding: 1.5rem;
        margin: 1rem;
    }

    .hero-image {
        height: 200px;
    }

    /* 轮播响应式 */
    .carousel-container {
        height: 280px;
    }

    .carousel-title {
        font-size: 1.5rem;
    }

    .carousel-subtitle {
        font-size: 0.9rem;
    }

    .carousel-control {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .carousel-indicators {
        bottom: 0.75rem;
        gap: 0.5rem;
    }

    .indicator {
        width: 8px;
        height: 8px;
    }

    .section-text h2,
    .section-text h3 {
        font-size: 1.1rem;
    }

    .section-text p {
        font-size: 0.85rem;
    }

    .read-more {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .footer-content {
        font-size: 0.85rem;
    }

    .footer {
        padding: 1.5rem 1rem;
    }

    .footer-navigation {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 1.5rem;
        padding-bottom: 1.5rem;
    }

    .footer-nav-column {
        text-align: left;
    }

    .footer-nav-column:last-child {
        grid-column: auto;
    }

    .footer-nav-title {
        font-size: 0.85rem;
        margin-bottom: 0.75rem;
    }

    .footer-nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-nav-link {
        font-size: 0.8rem;
        padding-left: 0.5rem;
    }

    .footer-nav-link:hover {
        padding-left: 1rem;
    }

    .icp-info p {
        font-size: 0.75rem;
        line-height: 1.5;
    }
}