.hero-btn{position:relative;display:inline-block;overflow:hidden;border-radius:0;transition:transform .3s ease}.hero-btn:hover{transform:translateY(0)}.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(https://aktec.vn/wp-content/uploads/2026/05/Button_Kham-pha-giai-phap_B_hover.webp)}.hero-btn-2::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/05/Button_Lien-he-tu-van_C_hover.webp)}.hero-btn-3::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/05/button_Xem-them-thong-tin_hover.webp)}.hero-btn-4::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/05/Button_Du-an-tieu-bieu_A.webp)}.hero-btn-5::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/07/Button_Xem-website_V2_B.webp)}.hero-btn-6::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/07/Button_Xem-Chi-tiet_V2_B.webp)}.hero-btn-7::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Xem-tat-ca-ung-dung_02.webp)}.hero-btn-8::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Xem-tat-ca-huong-dan_02.webp)}.hero-btn-9::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Yeu-cau-ho-tro_02.webp)}.hero-btn-9a::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Yeu-cau-ho-tro_01.webp)}.hero-btn-10::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Tai-bo-cai-ve_02.webp)}.hero-btn-11::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Huong-dan-cai-dat_02.webp)}.hero-btn-12::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Huong-dan-tao-USB-cai-dat_02A.webp)}.hero-btn-13::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Xem-dich-vu-bang-gia_02.webp)}.hero-btn-14::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Dich-vu-tai-bo-cai_02.webp)}.hero-btn-15::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Dich-vu-tu-van_02.webp)}.hero-btn-16::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_USB-cai-dat-Linux_02.webp)}.hero-btn-17::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Dat-dich-vu-tan-noi_02.webp)}.hero-btn-18::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Dat-dich-vu-online_02.webp)}.hero-btn-19::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Dang-ky-chuyen-doi-PC_02.webp)}.hero-btn-20::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/08/Button_Tu-van-chuyen-doi-Server_02.webp)}.hero-btn-21::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/09/Button_Xem-tat-ca-mau-website_01.webp)}.hero-btn-22::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/09/Button_Xem-tat-ca-cau-hoi_02.webp)}.hero-btn-23::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/09/Button_Dang-ky-thue-website_02.webp)}.hero-btn-24::after{background-image:url(https://aktec.vn/wp-content/uploads/2026/09/Button_Dang-ky-so-huu-website_02.webp)}