@font-face {
  font-family: "UTMAlbertaHeavy";
  src: url("../../../home/assets/fonts/uvnlaclongquanbold.ttf")
    format("truetype");
  font-weight: normal;
  font-style: normal;
}

body {
  background: url(../images/img-bg2.jpg) center top;
}
.main-down section {
  display: block;
  overflow: hidden;
}
.footer-link-privacy a {
  color: #bc0000;
}
.main-down .header {
  position: relative;
  z-index: 99;
}
.main-down .header .logo {
  position: absolute;
  top: 6rem;
  left: -2rem;
}
.main-down .header .logo a img {
  width: 26.3rem;
}
/***** Section *****/
section nav {
  width: 100%;
  height: 65px;
  float: left;
  margin: 245px 0 0;
  background: url(../images/maincontent-top.jpg) left bottom;
  position: relative;
  display: flex;
  background-repeat: repeat;
  background-size: cover;
  justify-content: center;
  align-items: center;
  gap: 100px;
}
section nav .btn:hover,
section nav .btn.active {
  position: relative;
  font-family: "UTMAlbertaHeavy";
  color: #fdd723;
  font-size: 28px;
  text-transform: uppercase;
  background: linear-gradient(
    120deg,
    #ffd723 0%,
    #ffd723 40%,
    #fff6c8 48%,
    #ffffff 50%,
    #fff6c8 52%,
    #ffd723 60%,
    #ffd723 100%
  );
  background-size: 400% 100%;
  background-position: 0% 0;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
section nav .btn {
  position: relative;
  font-family: "UTMAlbertaHeavy";
  color: #fff;
  font-size: 28px;
  text-transform: uppercase;
  transition: 0.5s;
  cursor: pointer;
}
/* section nav .btn.update {
  width: 460px;
  background-position: left bottom;
}
section nav .btn.guide {
  width: 282px;
  background-position: -460px bottom;
}
section nav .btn.system {
  width: 260px;
  background-position: -742px bottom;
} */

section nav .btn:hover,
section nav .btn.active {
  background-position: left top;
}
section nav .btn.update:hover,
section nav .btn.update.active {
  background-position: left top;
}
section nav .btn.guide:hover,
section nav .btn.guide.active {
  background-position: -460px top;
}
section nav .btn.system:hover,
section nav .btn.system.active {
  background-position: -742px top;
}

section .content {
  font-size: 15px;
  color: #696969;
}
section .content .block {
  width: 100%;
  float: left;
  box-shadow:
    rgba(0, 0, 0, 0.1) 0px 4px 6px -1px,
    rgba(0, 0, 0, 0.06) 0px 2px 4px -1px;
  background: #ffffff9e;
  padding: 20px 40px;
}
section .content .block table th {
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: #555;
}
section .content .block h1 {
  width: 100%;
  float: left;
  font-size: 25px;
  font-weight: bold;
  text-indent: 40px;
  color: #34322f;
  text-transform: uppercase;
  background: url(../images/img-arrow.png)
    no-repeat left center;
  font-family: "UTMAlbertaHeavy";
  background-size: 29px;
}
section .content .block .title {
  width: 160px;
  height: 50px;
  padding-top: 11px;
  margin-top: 20px;
  float: left;
  font-size: 25px;
  font-weight: bold;
  text-align: center;
  color: #e9eae7;
  text-transform: uppercase;
  background: url(../img/bg_btn_content.jpg) no-repeat left center;
}
section .content .block .title.fshare {
  margin-top: 40px;
}
section .content .block h2 {
  width: 100%;
  float: left;
  font-size: 15px;
  padding-top: 2px;
  margin-top: 10px;
  color: #34322f;
  font-weight: bold;
  text-indent: 20px;
  background: url(../img/i_h2.png) no-repeat left center;
}

section .content .block p {
  margin-top: 10px;
}

section .content .block .col {
  width: 100%;
  float: left;
}
section .content .block .col.note {
  color: red;
  text-indent: 20px;
  font-weight: bold;
  margin: 20px 0 !important;
}
section .content .block .col span {
  width: 50%;
  float: left;
  text-align: left;
}

section .content .block table {
  width: 100%;
  float: left;
  border-collapse: collapse;
  text-align: center;
  margin-top: 10px;
  border: 1px solid #d7d8d9;
}
section .content .block table thead tr {
  background-color: #d7d8d9;
}
section .content .block table tr {
  border-bottom: 1px solid #d7d8d9;
}

section .content .block table th,
section .content .block table td {
  border-left: 1px solid #c3c4c4;
  padding: 10px 0;
}

section .content .block table th:first-child,
section .content .block table td:first-child {
  border: none;
}

section .content .block table td a {
  color: #e81911;
  font-weight: bold;
}
section .content .block table td a:hover {
  text-decoration: underline;
}

section .content .guide .btn {
  width: 100%;
  height: 247px;
  float: left;
  position: relative;
  margin-top: 10px;
}
section .content .guide .btn a {
  width: 394px;
  height: 100%;
  float: left;
  background: url(../img/btn_guide.png) no-repeat left center;
  opacity: 0.87;
  position: absolute;
  top: 0;
  left: 0;
}
section .content .guide .btn a:hover {
  opacity: 1;
}
section .content .guide .btn ._g1 {
  width: 394px;
  background-position: left center;
  left: -211px;
}
section .content .guide .btn ._g2 {
  width: 305px;
  background-position: -394px center;
  left: 183px;
}
section .content .guide .btn ._g3 {
  width: 317px;
  background-position: right center;
  left: 488px;
}

section .content .system table {
  margin-top: 20px;
}
section .content .system table td:first-child {
  background-color: #d7d8d9;
  font-weight: bold;
  color: #626262;
  border-top: 1px solid #c3c4c4;
}

.banner {
  width: 218px;
  height: 307px;
  float: left;
  background: url(../img/banner_nhanquataigame.png) no-repeat center center;
  position: fixed;
  top: 25%;
  left: 10px;
  z-index: 10;
  opacity: 0.93;
}
.banner:hover {
  opacity: 1;
}
.banner a {
  width: 100%;
  height: 100%;
  float: left;
}
.install-guide {
  max-width: 900px;
  margin: 40px auto;
  line-height: 1.6;
  color: #222;
  margin-top: 100px;
}
.install-guide h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #b40000;
}
.install-step {
  background: #fff;
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 20px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  border-left: 6px solid #b40000;
  background: url(../images/download-container.jpg);
  background-position: 0 -140px;
  background-size: cover;
}
.install-step h2 {
  margin: 0 0 10px;
  font-size: 18px;
}
.install-step ul {
  margin: 0;
  padding-left: 18px;
}
.install-step li {
  margin-bottom: 6px;
}
.note {
  background: #fff6e5;
  border-left: 6px solid #ff9800;
  padding: 16px 20px;
  border-radius: 10px;
  margin-top: 30px;
}
.note h3 {
  margin-top: 0;
  color: #ff9800;
}
.support {
  margin-top: 30px;
  text-align: center;
  padding: 20px;
  background: #f3f4f6;
  border-radius: 12px;
}
.support strong {
  color: #b40000;
}
@media (max-width: 600px) {
  .install-step {
    padding: 16px;
  }
}

section nav.sticky {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  margin-top: 0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}