.hero-btn{
position:relative;
display:inline-block;
overflow:hidden;
border-radius:0;
transition:transform .3s ease;
} .hero-btn:hover{
transform:translateY(0px);
} .hero-btn img{
display:block;
transition:opacity .35s ease;
} .hero-btn::after{
content:"";
position:absolute;
inset:0;
background-size:cover;
background-position:center;
opacity:0;
transition:opacity .35s ease;
pointer-events:none;
} .hero-btn:hover img{
opacity:0;
}
.hero-btn:hover::after{
opacity:1;
} .hero-btn-1::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Tim-hieu-them_02B.webp);
} .hero-btn-2::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Xem-nang-luc-san-xuat_02.webp);
} .hero-btn-3::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Xem-tat-ca-giai-phap_02B.webp);
} .hero-btn-4::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Xem-tat-ca-san-pham_02B.webp);
} .hero-btn-5::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Xem-tat-ca-tin-tuc_02.webp);
} .hero-btn-6::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Yeu-cau-bao-gia_02.webp);
} .hero-btn-7::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Lien-he-tu-van_02.webp);
} .hero-btn-8::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Lien-he-ngay_02.webp);
} .hero-btn-9::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Kham-pha-san-pham_02.webp);
} .hero-btn-10::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Lien-he-Zalo_02.webp);
} .hero-btn-11::after{
background-image:url(//chengyu.vn/wp-content/uploads/2026/10/Button_Goi-truc-tiep_02.webp);
}