@media (max-width: 550px) {
    h2 {
        font-size: 1.8rem;
    }
}

/* 移动端菜单 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 280px;
        background: var(--surface);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 6rem 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-xl);
        transform: translateX(100%);
        transition: transform 0.35s ease;
        border-left: 1px solid var(--border-light);
        z-index: 99;
    }

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

    .menu-toggle {
        display: block;
        z-index: 100;
    }
}

/*这些企业更建议尽早做“绿证+能碳体系”规划  四列卡片 start*/
@media (max-width: 1000px) {
    .suitable-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .suitable-grid {
        grid-template-columns: 1fr;
    }
}

/*这些企业更建议尽早做“绿证+能碳体系”规划  四列卡片  end*/

/*头部按钮自适应 start*/
@media (max-width: 640px) {
    .hero-btns {
        flex-direction: column;
        align-items: center;
    }

    .hero-btns .btn {
        width: 100%;
        margin-top: 10px;
    }
}

/*头部按钮自适应 end*/