.qcfb.section-split {
        color: white;
    padding: 40px 0 !important;
    overflow: hidden;
}

section {
    overflow-x: hidden;
}
.cauhoi {
    font-size: 20px;
    font-weight: 600;
    text-transform: uppercase;
    color: #ff6600;
    position: relative;
}
.cauhoi::after {
    content: "✨";
    font-size: 21px;
    position: absolute;
    top: -13px;
    color: #ff6600;
}

h1.taisao {
    font-size: 26px;
    color: #0878c3;
}
p.boivi {
    font-size: 21px;text-decoration: underline !important;
}
ul.listlido {
    margin-bottom:20px;
}
ul.listlido li {
    list-style: disc;
    margin-left: 30px;
    font-size: 18px;
    margin-bottom: 12px;
    font-style: italic;
}
.section-image img {
    border-radius: 20px;
}
h2.vdkhachhang
 {
    padding: 45px 0;
    max-width: 850px;
    margin: auto;
    text-align: center;
    font-size: 30px;
    background: linear-gradient(90deg, rgb(171 0 255), rgb(18, 194, 233), rgb(246, 79, 89)) text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.vdkh img
 {
    border-radius: 20px;
}

ul.listlido2 li {
    font-size: 17px;
    margin-bottom: 15px;
}
span.sott {
    color: #ff0000;
    display: inline-block;
    font-size: 23px;
    border: 1px solid;
    width: 40px;
    height: 40px;
    text-align: center;
    border-radius: 100%;
    margin-right: 10px;
}

ul.listlido2 b {
    color: #ff7979;
}
.noidungtab{
  display:none;
  opacity:0;
  transition:opacity .18s ease;
  border: 1px dashed orange;
    border-radius: 15px;
}
.noidungtab.active{
  display:block;
  opacity:1;
}
h2#giaiphap {
    text-align: center;
    display: block;
    height: 80px;
    font-size: 30px;
    background: linear-gradient(90deg, rgb(171 0 255), rgb(18, 194, 233), rgb(246, 79, 89)) text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
ul.menu-col {
    justify-content: center;
}
.ndtab p {
    color: white;
}

.ndtab h3 {
    color: white;
    font-size: 20px;
    margin: 15px 0;
}
.ndtab ul li {
    list-style: circle;
    margin-bottom: 10px;
    color: whitesmoke;
    margin-left: 25px;
}
section.kythuat {
    color: white;
    padding-top: 0 !important;
}
.ngontay{
  display: inline-block;
  font-size: 36px;   /* tuỳ chỉnh kích thước */
  line-height: 1;
  animation: bobY 1.1s ease-in-out infinite;
  transform-origin: bottom center;
  will-change: transform;
}
span.truotngang {
    top: 60%;
}
@keyframes bobY{
  0%, 100% { transform: translateY(0); }
  40%      { transform: translateY(-8px); } /* độ nhô lên */
  60%      { transform: translateY(2px); }  /* nảy xuống */
}

p.anhma img {
    border-radius: 10px;
}
p.cannut {
    text-align: center;
    margin-top: 20px;
}
ul.hangmuccv li {
    margin-bottom: 8px;
}
ul.hangmuccv li {
    border-bottom: 1px solid #c7c7c7;
    padding-bottom: 15px;
}
ul.hangmuccv li {
    margin-bottom: 8px;
}
ul.hangmuccv {
    padding: 0 41px;
    text-align: left;
}
section.giaiphap {
    max-width: 50%;
    margin: auto;
}
.swiper {
    padding-top: 0px!important;
}
.project-header {
     margin-bottom: 0px!important;
}
.sec-com-tt {
    font-size: 2rem!important;
}
@media(max-width:768px){
    section.giaiphap {
    max-width: 100%;
}
ul.hangmuccv {
    padding: 0;
}
.giaiphap h2 {
        font-size: 21px;
    }
    section.kythuat video {
    margin-bottom: 20px;
}
    .qcfb.section-split {
        padding-bottom: 10px!important;
    }
    .ndtab h3 {
        text-align: center;
    }
    h2#giaiphap {
        height: 85px;
        font-size: 24px;
    }
    ul.menu-col {
        justify-content: unset;
    }
    h2.vdkhachhang {
        font-size: 19px;
        padding: 20px 0px;
    }
    .cannut{text-align:center;margin-top:0;}
    ul.listlido2 {
        margin-top: 20px;
    }
    .cauhoi {
    font-size: 17px;
    margin-top: 20px;
    }
    h1.taisao {
        font-size: 23px;
        color: #0878c3;
        margin-top: -11px;
        margin-bottom: 13px;
    }
    ul.listlido li {
        list-style: disc;
        margin-left: 30px;
        font-size: 16px;
        margin-bottom: 5px;
        font-style: italic;
    }
}