/* =========================================================
   BO SUNG 05/10/2026 - rule trich tu CSS template cu (J3)
   chi gom selector dung tren HTML trang chu V4.
   Dat TRUOC phan goc de phan goc all-new-home van uu tien khi trung.
   ========================================================= */
/* ---- tu bootstrap.css ---- */
.label:empty{display:none}
@media print{
.label{border:1px solid #000}
}
.label{line-height:1;vertical-align:baseline;white-space:nowrap;font-weight:700}
.label{display:inline}
.label{padding:.2em .6em .3em;font-size:75%;color:#fff;text-align:center;border-radius:.25em}
/* ---- tu template.css ---- */
.label:empty{display: none}
.text-muted{color: #999}
/* ---- tu off-canvas.css ---- */
.seo-heading{text-transform: uppercase}
.period{font-size: 16px;
  color: #777;
  font-weight: 500}
.seo-heading,
.trust-image-col{text-align: center}
.trust-icon{flex-shrink: 0;
  margin-right: 10px;
  padding-top: 2px;
  line-height: 0}
.trust-text{flex-grow: 1;
  font-weight: 500}
@media (max-width:600px){
.trust-text{font-size: 13px}
}
.vt-toc-body a:hover{color: #e03}
.seo-faq-section{padding: 40px 0 60px;
  background-color: #fff;
  border-top: 1px dashed #eee}
.faq-grid{display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px}
.faq-item{background: #fff;
  transition: .3s}
.faq-item:hover{border-color: #d92315;
  box-shadow: 0 4px 10px rgb(0 0 0 / .05)}
.faq-item summary{font-size: 15px;
  color: #333;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px}
.faq-item summary::after{content: '+';
  flex-shrink: 0;
  position: static;
  transform: none;
  right: auto;
  top: auto}
.faq-item summary::-webkit-details-marker{display: none}
.syntax-highlight{display: inline-block;
  background: #fefce8;
  border: 1px dashed #ca8a04;
  color: #b45309;
  padding: 5px 10px;
  font-weight: 700;
  font-family: monospace;
  border-radius: 4px;
  margin: 5px 0}
.consult-section{padding: 40px 0;
  background: #fff;
  border-top: 10px solid #f8f9fa}
.consult-grid{display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px}
.consult-card{border: 1px solid #eee;
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s}
.consult-card:hover{transform: translateY(-5px);
  box-shadow: 0 10px 20px rgb(0 0 0 / .08);
  border-color: #fca5a5}
.consult-header{background: #fff5f5;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  border-bottom: 1px solid #ffecec}
.c-title h3{margin: 0;
  font-size: 16px;
  color: #b91c1c;
  font-weight: 700}
.c-title span{font-size: 13px;
  color: #666;
  display: block;
  margin-top: 3px}
.consult-body{padding: 20px}
.c-pack{font-size: 15px;
  color: #333;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed #eee}
.c-pack strong{color: #d92315;
  font-size: 16px;
  background: #fff;
  padding: 2px 8px;
  border: 1px solid #d92315;
  border-radius: 4px;
  margin-left: 5px}
.c-reason{font-size: 14px;
  color: #555;
  line-height: 1.5}
.seo-heading{position: relative}
@media (max-width:768px){
.faq-grid{grid-template-columns: 1fr}
.consult-grid{grid-template-columns: 1fr;
    gap: 15px;
    padding: 0 10px}
.consult-card{box-shadow: 0 2px 5px rgb(0 0 0 / .05)}
}
.seo-heading::after{display: block;
  height: 3px;
  background: #d92315;
  margin: 8px auto 0;
  content: ''}
.container-seo{max-width: 1100px;
  margin: 0 auto;
  padding: 0 15px}
.seo-heading{font-size: 20px;
  color: #333;
  margin-bottom: 20px;
  padding-bottom: 10px}
.seo-heading::after{width: 60px}
.bottom-trust-section{padding: 50px 0;
  background-color: #fff;
  border-top: 1px solid #eee}
.trust-wrapper-split{display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 30px}
.trust-image-col{flex: 1}
.trust-image-col img{max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px -10px rgb(0 0 0 / .15);
  object-fit: cover}
.trust-content-col{flex: 1.2;
  display: flex;
  flex-direction: column;
  gap: 20px}
.trust-row{display: flex;
  align-items: flex-start;
  gap: 15px;
  background: #f8fafc;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  transition: transform .2s}
.trust-row:hover{background: #fff;
  box-shadow: 0 5px 15px rgb(0 0 0 / .05);
  border-color: #d92315;
  transform: translateX(5px)}
.trust-text h3{font-size: 16px;
  font-weight: 600;
  color: #b91c1c;
  margin: 0 0 5px;
  text-align: left}
.trust-text p{font-size: 14px;
  color: #555;
  margin: 0;
  line-height: 1.5;
  text-align: left}
.trust-icon{margin-bottom: 5px !important;
  display: block}
.syntax-box{display: inline-block;
  background: #fff;
  border: 1px solid #ddd;
  padding: 5px 15px;
  font-weight: 700;
  color: #d92315;
  font-family: monospace;
  font-size: 16px;
  margin: 5px 0;
  border-radius: 4px}
.faq-item summary{font-weight: 600;
  cursor: pointer}
.faq-item{margin-bottom: 10px;
  border: 1px solid #eee;
  border-radius: 8px;
  overflow: hidden}
.faq-item summary{background: #f8fafc;
  padding: 15px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center}
.faq-item summary::after{content: '+';
  font-size: 20px;
  font-weight: 700;
  color: #d92315}
.faq-content{padding: 15px;
  border-top: 1px solid #eee;
  font-size: 14px;
  line-height: 1.6;
  color: #444;
  background: #fff}
.trust-text{font-size: 13px !important;
  line-height: 1.4 !important;
  color: #444 !important;
  display: block !important}
.vt-toc-body>ul>li:last-child{border-bottom: none}
@media (max-width:768px){
.trust-wrapper-split{flex-direction: column;
    gap: 30px}
.trust-image-col{order: 1;
    width: 100%}
.trust-image-col img{max-height: 250px;
    width: auto}
.trust-content-col{order: 0;
    width: 100%}
}
.vt-highlight-txt{padding: 20px;
  box-shadow: 0 4px 12px rgb(238 0 51 / .08);
  margin-bottom: 15px;
  overflow: hidden;
  position: relative}
#sapo{font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  max-width: 100%;
  margin: 0;
  font-size: 16px}
#sapo strong{color: #444;
  font-weight: 700}
.vt-highlight-txt{background: #fff9fa;
  border: 1px solid #ffccd5;
  border-radius: 12px;
  margin-top: 15px}
.toc-title-group{text-transform: uppercase}
.pkg-name{font-size: 24px;
  font-weight: 900;
  color: #1e293b;
  margin: 0;
  line-height: 1.2}
.pkg-price{font-size: 15px;
  font-weight: 700;
  color: #e03;
  margin-top: 5px}
.vt-toc-body ul li{padding-left: 0 !important}
@media (max-width:768px){
.mobile-bottom-nav{display: flex;
    justify-content: space-around;
    align-items: center;
    height: 60px;
    padding: 0 5px}
}
.vt-toc-body ul li::before{content: "" !important}
.toc-title-group{align-items: center;
  display: flex}
.vt-toc-wrapper{background: #fff;
  border: 1px solid #ffecec;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgb(238 0 51 / .08);
  overflow: hidden;
  margin: 25px 0;
  font-family: Arial, Helvetica, sans-serif;
  max-width: 100%}
.vt-toc-header{background: linear-gradient(90deg, #e03 0, #b91c1c 100%);
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff}
.toc-title-group{gap: 10px;
  font-weight: 700;
  font-size: 16px}
.toc-toggle-btn{color: #fff;
  background: rgb(255 255 255 / .2);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  transition: .3s}
.toc-toggle-btn:hover{background: #fff;
  color: #e03}
.vt-toc-body{padding: 15px 20px;
  background: #fff;
  transition: .4s;
  max-height: 1000px;
  opacity: 1}
.vt-toc-body.collapsed{max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  overflow: hidden}
.vt-toc-body ul{list-style: none;
  padding: 0;
  margin: 0}
.vt-toc-body>ul>li{margin-bottom: 8px;
  border-bottom: 1px dashed #f0f0f0;
  padding-bottom: 8px}
.vt-toc-body a{text-decoration: none;
  color: #333;
  font-size: 14px;
  font-weight: 600;
  display: block;
  transition: color .2s;
  line-height: 1.5}
.toc-num{color: #e03;
  font-weight: 800;
  margin-right: 5px}
.toc-toggle-btn{transition: .3s;
  text-decoration: none}
.toc-title-group{gap: 10px;
  text-transform: uppercase}
.vt-toc-body a{font-size: 14px}
.vt-toc-wrapper{background: #fff;
  border: 1px solid #ffecec;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgb(238 0 51 / .08);
  overflow: hidden;
  margin: 25px 0;
  font-family: Arial, Helvetica, sans-serif;
  max-width: 100%}
.vt-toc-header{background: linear-gradient(90deg, #e03 0, #b91c1c 100%);
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff}
.toc-title-group{display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 16px;
  color: #fff !important}
.toc-toggle-btn{color: #fff;
  background: rgb(255 255 255 / .2);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%}
.toc-num,
.vt-toc-body a:hover{color: #e03}
.toc-toggle-btn:hover{background: #fff;
  color: #e03}
.vt-toc-body{padding: 15px 20px;
  background: #fff;
  transition: .4s;
  max-height: 1000px;
  opacity: 1}
.vt-toc-body.collapsed{max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  overflow: hidden}
.vt-toc-body ul{list-style: none;
  padding: 0;
  margin: 0}
.vt-toc-body>ul>li{margin-bottom: 8px;
  border-bottom: 1px dashed #f0f0f0;
  padding-bottom: 8px}
.vt-toc-body>ul>li:last-child{border-bottom: none}
.vt-toc-body a{text-decoration: none;
  color: #333;
  font-weight: 600;
  display: block;
  transition: color .2s;
  line-height: 1.5}
.toc-num{font-weight: 800;
  margin-right: 5px}
.vt-toc-body ul li::before{content: "" !important}
.vt-toc-body ul li{padding-left: 0 !important}
.vt-toc-body ul{padding-left: 10px !important;}
.vt-toc-body ul li::marker{content: "";}
.price-wrap{width: 100%;

  margin: 0 auto;
  padding: 0px;
  margin-bottom: 10px;}
.price-title{background: linear-gradient(180deg, #c8102e 0%, #9b0b22 100%);
  color: #fff;
  text-align: center;
  font-weight: bold;
  font-size: clamp(13px, 3.6vw, 16px);
  padding: 12px 4px;
  border-radius: 8px 8px 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.3px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.15);}
table.price-table{width: 100% !important;
  border-collapse: collapse !important;
  table-layout: fixed !important;
  background: #fff !important;
  border-radius: 0 0 8px 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  margin: 0 !important;}
.price-table tr{background: transparent !important;}
table.price-table th,
table.price-table td{border: none;
  border-bottom: 1px solid #f1d4d4;
  padding: 10px 4px !important;
  text-align: center;
  vertical-align: middle;
  font-size: clamp(11px, 3vw, 13px);
  line-height: 1.3;
  word-break: keep-all;
  overflow-wrap: normal;
  hyphens: none;}
table.price-table td+td,
table.price-table th+th{border-left: 1px solid #f7e3e3;}
table.price-table tbody tr:nth-child(odd) td{background: #ffffff;}
table.price-table tbody tr:nth-child(even) td{background: #fdf2f2;}
table.price-table tbody tr:last-child td{border-bottom: none;}
col.c1{width: 23%;}
col.c2{width: 23%;}
col.c3{width: 35%;}
col.c4{width: 19%;}
.pkg{white-space: nowrap;}
.price-table a.pkg-link,
.price-table a.pkg-link:link,
.price-table a.pkg-link:visited,
.price-table a.pkg-link:focus,
.price-table a.pkg-link:active{color: #006400 !important;

  font-weight: bold !important;
  font-size: clamp(12px, 3.1vw, 14px) !important;
  text-decoration: none !important;
  letter-spacing: 0 !important;
  white-space: nowrap !important;
  display: inline-block !important;}
.price-table a.pkg-link:hover{text-decoration: underline !important;
  color: #008000 !important;}
.price{color: #c8102e;
  font-weight: bold;
  white-space: nowrap;}
.price .text-gray{display: block;
  color: #333;
  font-weight: normal;
  font-size: clamp(10px, 2.6vw, 11px);
  margin-top: 2px;
  white-space: nowrap;}
.benefit{color: #111;
  text-align: center;
  word-break: normal;
  overflow-wrap: break-word;}
.benefit strong{color: #c8102e;
  font-weight: bold;
  font-size: clamp(11.5px, 3vw, 13px);}
.benefit .text-muted{display: block;
  color: #666;
  font-style: italic;
  font-weight: normal;
  font-size: clamp(10px, 2.5vw, 11.5px);
  margin-top: 3px;
  line-height: 1.25;}
.price-table a.btn-table-reg,
.price-table a.btn-table-reg:link,
.price-table a.btn-table-reg:visited,
.price-table a.btn-table-reg:hover,
.price-table a.btn-table-reg:focus,
.price-table a.btn-table-reg:active{display: inline-block !important;
  box-sizing: border-box !important;
  background: linear-gradient(180deg, #e4223f 0%, #c8102e 100%) !important;
  background-color: #c8102e !important;
  color: #ffffff !important;
  text-decoration: none !important;
  text-transform: none !important;
  font-family: Arial, Helvetica, sans-serif !important;
  font-weight: bold !important;
  font-style: normal !important;
  font-size: clamp(10px, 2.8vw, 12px) !important;
  line-height: 1.1 !important;
  letter-spacing: 0 !important;
  padding: 7px 6px !important;
  margin: 0 !important;
  min-width: 56px !important;
  width: auto !important;
  height: auto !important;
  border: none !important;
  border-radius: 4px !important;
  box-shadow: none !important;
  outline: none !important;
  text-align: center !important;
  vertical-align: middle !important;
  white-space: nowrap !important;
  cursor: pointer !important;
  transition: background .15s ease !important;}
.price-table a.btn-table-reg:hover{background: #b80000 !important;}
.price-table a.btn-table-reg:active{background: #a00000 !important;}
.price-table td:last-child{text-align: center !important;
  vertical-align: middle !important;
  padding: 6px 3px !important;}
@media (max-width: 360px){
.price-wrap{padding: 0px;}
table.price-table th,
table.price-table td{padding: 6px 2px;}
col.c1{width: 24%;}
col.c2{width: 23%;}
col.c3{width: 33%;}
col.c4{width: 20%;}
}
/* ---- tu homepage.css ---- */
.vd-final-answer .answer-title::before{font-family:"Font Awesome 6 Free";font-weight:900;position:absolute}
#cach-dang-ky-4g-5g h3,
#cach-dang-ky-4g-5g strong{color:var(--v-dark-red)}
#cach-dang-ky-4g-5g h2,
.conclusion-header h3,
.seo-heading{text-transform:uppercase;text-transform:uppercase}
.vd-final-answer strong{color:#b91c1c}
.vd-final-answer{margin:25px 0;font-family:'Segoe UI',Roboto,sans-serif;position:relative}
.vd-final-answer{background-color:#fff5f5;border-left:0px solid #e03;padding:15px;border-radius:0 12px 12px 0;color:#333;box-shadow:0 4px 15px rgba(238,0,51,.08)}
.vd-final-answer .answer-title{margin:0 0 15px;font-weight:700;font-size:18px;color:#b91c1c;position:relative;padding-left:30px;line-height:1.4}
.vd-final-answer .answer-title::before{content:"\f0e7";left:0;top:2px;color:#e03;font-size:20px}
.vd-final-answer .answer-list{list-style:none;padding:0;margin:0}
.vd-final-answer .answer-list li{position:relative;padding-left:35px;margin-bottom:12px;line-height:1.5;font-size:15px}
.vd-final-answer .answer-list li::before{position:absolute;font-weight:900;font-family:"Font Awesome 6 Free"}
.vd-final-answer .answer-list li::before{left:0;top:2px;color:#e03;font-size:16px;width:25px;text-align:center}
.vd-final-answer .li-wifi::before{content:"\f1eb"}
.vd-final-answer .li-social::before{content:"\f144"}
.vd-final-answer .li-day::before{content:"\f783"}
#cach-dang-ky-4g-5g h2,
.seo-heading{text-align:center}
#cach-dang-ky-4g-5g h2{color:var(--v-red);font-size:26px;font-weight:800;margin-bottom:20px;letter-spacing:-.5px}
#cach-dang-ky-4g-5g h3{font-size:20px;font-weight:700;margin-top:35px;margin-bottom:15px;padding-left:15px;border-left:4px solid var(--v-red)}
#cach-dang-ky-4g-5g h3::after{background:0 0}
#cach-dang-ky-4g-5g p{margin-bottom:15px;font-size:16px}
.seo-heading{color:#c00;margin-bottom:20px;font-size:22px}
.mobile-bottom-nav{display:none;position:fixed;bottom:0;left:0;width:100%;background:#fff;box-shadow:0 -2px 10px rgba(0,0,0,.1);z-index:9999;padding-bottom:env(safe-area-inset-bottom);height:65px;border-top:1px solid #f1f5f9}
@media (max-width:768px){
#cach-dang-ky-4g-5g h2{font-size:22px}
.mobile-bottom-nav{display:flex}
}
.pkg-card{box-shadow:0 4px 12px rgba(0,0,0,.08);transition:.3s;border:1px solid #f0f0f0}
.faq-item{border-bottom:1px solid #f0f0f0;margin-bottom:10px}
.faq-item:last-child{border-bottom:none}
.faq-item summary{padding:15px 30px 15px 0;font-weight:700;cursor:pointer;list-style:none;position:relative;color:#333}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:0;top:15px;font-weight:700;color:#e03;font-size:1.2rem}
.faq-content{padding:0 0 15px;color:#555;line-height:1.6;font-size:.95rem}
.trust-row{background:#fff!important;border:1px solid #e5e7eb!important;border-radius:12px!important;padding:20px!important;margin-bottom:15px!important;display:flex;align-items:center;gap:15px;transition:transform .3s}
.trust-row:hover{transform:translateX(5px);border-color:#e03}
.trust-icon{width:50px;height:50px;background:#fef2f2;color:#e03;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.conclusion-box{margin:0 auto;background:#fdf8f8;padding:30px;position:relative;box-shadow:0 5px 15px rgba(0,0,0,.05)}
.conclusion-content{color:#444;font-size:15px;line-height:1.6;font-style:italic;text-align:justify}
.admin-sign{margin-top:25px;text-align:right}
.admin-sign strong{display:block;color:#c00;font-size:16px;font-weight:700}
.admin-sign span{font-size:13px;color:#666}
.conclusion-header{display:flex;align-items:center;justify-content:flex-start;margin-bottom:00px;border-bottom:0 solid #eee;padding-bottom:15px;gap:15px}
.conclusion-header h3{text-align:left;margin:0;color:#c00;font-size:22px;font-weight:800;line-height:1.2}
.container-seo p{font-size:14px;line-height:1.6;color:#333;margin-bottom:15px;text-align:justify;padding-left:36px}
/* ---- tu home-extra.css ---- */
#cach-dang-ky-4g-5g h2{color: var(--v-red);
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 20px;
    text-transform: uppercase;
    text-align: center;
    letter-spacing: -0.5px;}
#cach-dang-ky-4g-5g h3{color: var(--v-dark-red);
    font-size: 20px;
    font-weight: 700;
    margin-top: 35px;
    margin-bottom: 15px;
    padding-left: 15px;
    border-left: 4px solid var(--v-red);}
#cach-dang-ky-4g-5g h3::after{background:none;}
#cach-dang-ky-4g-5g p{margin-bottom: 15px;
    font-size: 16px;}
#cach-dang-ky-4g-5g strong{color: var(--v-dark-red);}
@media (max-width: 768px){
#cach-dang-ky-4g-5g h2{font-size: 22px;}
.seo-heading{color: #cc0000;
        text-align: center;
        text-transform: uppercase;
        margin-bottom: 20px;
        font-size: 22px;}
.container-seo p{font-size: 14px;
        line-height: 1.6;
        color: #333;
        margin-bottom: 15px;
        text-align: justify;}
.mobile-bottom-nav{display: none;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: #ffffff;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        z-index: 9999;
        padding-bottom: env(safe-area-inset-bottom);
        height: 65px;
        border-top: 1px solid #f1f5f9;}
@media (max-width: 768px){
.mobile-bottom-nav{display: flex;}
}
.pkg-card{box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        transition: all 0.3s ease;
        border: 1px solid #f0f0f0;}
.faq-item{border-bottom: 1px solid #f0f0f0;
        margin-bottom: 10px;}
.faq-item:last-child{border-bottom: none;}
.faq-item summary{padding: 15px 0;
        font-weight: 700;
        cursor: pointer;
        list-style: none;
        position: relative;
        padding-right: 30px;
        color: #333;}
.faq-item summary::-webkit-details-marker{display: none;}
.faq-item summary::after{content: '+';
        position: absolute;
        right: 0;
        top: 15px;
        font-weight: bold;
        color: #ee0033;
        font-size: 1.2rem;}
.faq-content{padding: 0 0 15px 0;
        color: #555;
        line-height: 1.6;
        font-size: 0.95rem;}
.trust-row{background: #fff !important;
        border: 1px solid #e5e7eb !important;
        border-radius: 12px !important;
        padding: 20px !important;
        margin-bottom: 15px !important;
        display: flex;
        align-items: center;
        gap: 15px;
        transition: transform 0.3s;}
.trust-row:hover{transform: translateX(5px);
        border-color: #ee0033;}
.trust-icon{width: 50px;
        height: 50px;
        background: #fef2f2;

        color: #ee0033;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        flex-shrink: 0;}
.conclusion-box{margin: 0 auto;
        background: #fdf8f8;
        padding: 30px;
        position: relative;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);}
.conclusion-header h3{margin: 0;
        color: #cc0000;
        font-size: 20px;
        font-weight: 800;
        text-transform: uppercase;
        text-align: left;}
.admin-sign strong{display: block;
        color: #cc0000;
        font-size: 16px;
        font-weight: bold;}
.conclusion-header{display: flex;             
    align-items: center;       
    justify-content: flex-start; 
    margin-bottom: 00px;
    border-bottom: 0px solid #eee;
    padding-bottom: 15px;
    gap: 15px;}
.conclusion-header h3{margin: 0;                 
    color: #cc0000;            
    font-size: 22px;           
    font-weight: 800;          
    text-transform: uppercase; 
    line-height: 1.2;}
.container-seo p{font-size: 14px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 15px;
    text-align: justify;
    padding-left: 36px;}
}
/* ---- tu home-vietteldata.css ---- */
.vd-final-answer{margin: 25px 0;
  font-family: 'Segoe UI', Roboto, sans-serif;
  position: relative;}
.vd-final-answer strong{color: #b91c1c;}
.pkg-link{font-weight: bold;
  color: var(--red);
  font-size: 15px;
  text-decoration: none;}
.btn-table-reg{background: var(--red);
  color: #fff;
  padding: 6px 15px;
  border-radius: 4px;
  display: inline-block;
  font-size: 13px;
  font-weight: bold;
  text-decoration: none;}
.btn-table-reg:hover{background: var(--red-dark); color: #fff;}
#cach-dang-ky-4g-5g{text-align: justify !important;}
#cach-dang-ky-4g-5g h2{color: var(--v-red);
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  text-align: center;
  text-transform: uppercase;}
#cach-dang-ky-4g-5g h3{color: #a52a2a;
  font-size: 1.6rem;
  font-weight: bold;
  text-transform: uppercase;
  font-family: Arial, sans-serif;
  border-left: 5px solid var(--v-red);
  padding: 0.5rem 0 0.5rem 1rem;
  margin: 1.5rem 0 0.75rem 0;
  line-height: 1.4;
  display: block;}
#cach-dang-ky-4g-5g h3::after{background: 0 0;}
#cach-dang-ky-4g-5g strong{color: var(--v-dark-red);}
#cach-dang-ky-4g-5g p{margin-bottom: 15px; font-size: 16px;}
.seo-heading{color: #c00;
  margin-bottom: 20px;
  font-size: 22px;
  text-align: center;
  text-transform: uppercase;}
.container-seo p{font-size: 14px;
  line-height: 1.6;
  color: #333;
  margin-bottom: 15px;
  text-align: justify;
  padding-left: 36px;}
.mobile-bottom-nav{position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
  display: none;                
  padding: 8px 5px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  z-index: 9999;
  border-top: 1px solid #f1f5f9;
  height: 65px;}
.mbn-item{flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: 0 0;
  border: none;
  outline: 0;
  color: #64748b;
  padding: 5px 0;
  text-decoration: none;
  gap: 4px;
  cursor: pointer;
  transition: 0.2s;
  position: relative;}

.mbn-title{font-weight: 800; font-size: 10px; text-transform: uppercase;}
.mbn-price{font-size: 9px; font-weight: 500; margin-top: 1px; white-space: nowrap;}
.active-item{color: var(--red);}
@media (max-width: 768px){
.mobile-bottom-nav{display: flex;}
}
.pkg-card{background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;}
.vt-highlight-txt{background: #f8fafc;
  border-left: 4px solid var(--red);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: #334155;}
.info-box{background: var(--blue-light);
  border-left: 4px solid var(--blue);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
  font-size: 14px;}
.tip-box{background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 4px solid #d97706;
  padding: 20px;
  border-radius: 8px;
  line-height: 1.6;
  color: #92400e;
  margin: 16px 0;}
.tip-box strong{color: #b45309;}
.group-section-desc{color: #475569;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;}
.package-grid{display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: flex-start;}
.faq-item{border-bottom: 1px solid #f0f0f0;
  margin-bottom: 10px;}
.faq-item:last-child{border-bottom: none;}
.faq-item summary{padding: 15px 30px 15px 0;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  position: relative;
  color: #333;}
.faq-item summary::-webkit-details-marker{display: none;}
.faq-item summary::after{content: '+';
  position: absolute;
  right: 0;
  top: 15px;
  font-weight: 700;
  color: #e03;
  font-size: 1.2rem;}
.faq-content{padding: 0 0 15px;
  color: #555;
  line-height: 1.6;
  font-size: 0.95rem;}
.answer-list .li-5g{position: relative;}
.answer-list .li-5g::before{content: "\f0e7";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: #f97316;
  position: absolute;
  left: 0;}
.trust-row{background: #fff !important;
  border: 1px solid #e5e7eb !important;
  border-radius: 12px !important;
  padding: 20px !important;
  margin-bottom: 15px !important;
  display: flex;
  align-items: center;
  gap: 15px;
  transition: transform 0.3s;}
.trust-row:hover{transform: translateX(5px); border-color: #e03;}
.trust-icon{width: 50px;
  height: 50px;
  background: #fef2f2;
  color: #e03;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;}
@media (max-width: 768px){
#cach-dang-ky-4g-5g h2{font-size: 22px;}
}
.vt-sim-condition-pro{background:#fff;
  border-radius:22px;
  padding:28px;
  margin:28px 0;
  box-shadow:0 10px 35px rgba(15,23,42,.08);
  border:1px solid #eef2f7;}
@media(max-width:600px){
.vt-sim-condition-pro{padding:18px;
    border-radius:18px;}
}
.faq-grid{display: flex !important;
    gap: 20px;
    align-items: flex-start !important;}
.faq-column{flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;}
.faq-item{contain: layout paint;}
.btn-cta,
.vt-toc-header,
.faq-item summary{touch-action: manipulation;}
#block-combo-mxh,
#block-combo-day,
#tu-van,
#loi-dang-ky,
#sim-moi,
#faq,
#cu-phap,
#trust{content-visibility: auto;
    contain-intrinsic-size: 1px 800px;}

/* ===================== PHAN GOC all-new-home.css ===================== */
/* =========================================================
   VIETTELDATA - SHARED CSS OPTIMIZED
   Scope: HUB 5G + trang chi tiet goi 5G135N
   Generated from css-new.css
   - Removed selectors unused by both supplied HTML files
   - Removed unused keyframes
   - Consolidated repeated identical selectors
========================================================= */

:root {
  --red: #ee0033;
  --red-dark: #cc002b;
  --blue: #0284c7;
  --blue-light: #e0f2fe;
  --green: #16a34a;
  --green-light: #dcfce7;
  --orange: #f59e0b;
  --orange-light: #ffedd5;
  --purple: #9333ea;
  --purple-light: #f3e8ff;
  --slate: #334155;
  --border: #e5e7eb;
  --shadow: 0 4px 6px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 20px rgba(0,0,0,0.1);
  --radius: 12px;
}

.text-gray {
  color: #666;
  font-size: 13px;
}

.text-muted {
  color: #555;
  font-size: 13px;
}

.btn-table-reg {
  background: #ee0033;
  color: #fff;
  padding: 6px 15px;
  border-radius: 4px;
  display: inline-block;
  font-size: 13px;
  font-weight: bold;
  text-decoration: none;
}

.btn-table-reg:hover {
  background: #cc002b;
  color: #fff;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: flex-start;
  margin-bottom:20px;
}

.pkg-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

.pkg-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.best-seller {
  border: 2px solid var(--red);
}

.ribbon {
  position: absolute;
  right: -5px;
  top: -5px;
  z-index: 10;
  overflow: hidden;
  width: 75px;
  height: 75px;
}

.ribbon span {
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  text-align: center;
  line-height: 20px;
  transform: rotate(45deg);
  width: 100px;
  display: block;
  position: absolute;
  top: 19px;
  right: -21px;
  box-shadow: 0 3px 10px -5px rgba(0,0,0,1);
}

.ribbon-red span {
  background: var(--red);
}

.ribbon-blue span {
  background: var(--blue);
}

.ribbon-green span {
  background: var(--green);
}

.ribbon-orange span {
  background: var(--orange);
}

.ribbon-purple span {
  background: var(--purple);
}

.pkg-header {
  padding: 18px 16px;
  text-align: center;
  background: #fee2e2;
}

.pkg-header.header-blue {
  background: var(--blue-light);
}

.pkg-header.header-green {
  background: var(--green-light);
}

.pkg-header.header-orange {
  background: var(--orange-light);
}

.pkg-header.header-purple {
  background: var(--purple-light);
}

.pkg-name {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: #1e293b;
  text-transform: uppercase;
}

.pkg-name::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: var(--red);
  margin: 8px auto 0;
  border-radius: 2px;
  position: static !important;
}

.pkg-price {
  font-size: 24px;
  font-weight: 700;
  color: var(--red);
  margin-top: 6px;
}

.pkg-cycle {
  font-size: 13px;
  font-weight: 400;
  color: #666;
}

.pkg-body {
  padding: 18px 16px;
  text-align: center;
}

.main-data {
  margin-bottom: 14px;
}

.data-num {
  font-size: 32px;
  font-weight: 800;
  color: #1e293b;
  line-height: 1;
}

.data-unit {
  font-size: 16px;
  font-weight: 600;
  color: #555;
}

.data-note {
  font-size: 13px;
  color: #666;
  margin-top: 4px;
}

ul.pkg-features {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  text-align: left;
}

ul.pkg-features li {
  list-style: none !important;
  margin-bottom: 9px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: flex-start !important;
  gap: 10px !important;
  font-size: 14px;
  color: #444;
}

ul.pkg-features li::before,
ul.pkg-features li::after {
  content: none !important;
  display: none !important;
}

.icon-wrap {
  flex-shrink: 0 !important;
  width: 20px !important;
  text-align: center;
  padding-top: 2px;
}

.text-wrap {
  flex: 1;
  text-align: left;
  font-size: 14px;
  color: #444;
  line-height: 1.4;
}

.pkg-footer {
  padding: 0 16px 18px;
  text-align: center;
}

.btn-cta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 50px;
  transition: all 0.3s;
  font-size: 14px;
}

.btn-cta:hover {
  transform: scale(1.03);
  text-decoration: none;
  color: #fff;
}

.btn-red {
  background: var(--red);
  box-shadow: 0 4px 15px rgba(238,0,51,0.4);
}

.btn-red:hover {
  background: var(--red-dark);
}

.btn-blue {
  background: var(--blue);
  box-shadow: 0 4px 15px rgba(2,132,199,0.4);
}

.btn-blue:hover {
  background: #0369a1;
}

.btn-green {
  background: var(--green);
  box-shadow: 0 4px 15px rgba(22,163,74,0.4);
}

.btn-green:hover {
  background: #15803d;
}

.btn-orange {
  background: var(--orange);
  box-shadow: 0 4px 15px rgba(245,158,11,0.4);
}

.btn-orange:hover {
  background: #d97706;
}

.btn-purple {
  background: var(--purple);
  box-shadow: 0 4px 15px rgba(147,51,234,0.4);
}

.btn-purple:hover {
  background: #7e22ce;
}

@keyframes pulse-btn {
  0% { box-shadow: 0 0 0 0 rgba(238,0,51,0.7); }
  70% { box-shadow: 0 0 0 10px rgba(238,0,51,0); }
  100% { box-shadow: 0 0 0 0 rgba(238,0,51,0); }
}

.btn-pulse {
  animation: pulse-btn 2s infinite;
}

.sms-syntax {
  font-size: 13px;
  color: #666;
  margin-top: 8px;
}

.faq-section details {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.faq-section summary {
  padding: 15px 20px;
  font-weight: 700;
  font-size: 15px;
  color: var(--slate);
  cursor: pointer;
  list-style: none;
  position: relative;
  outline: none;
}

.faq-section summary::-webkit-details-marker {
  display: none;
}

.faq-section summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 14px;
  color: #94a3b8;
  font-size: 20px;
  font-weight: 400;
  transition: transform 0.3s;
}

.faq-section details[open] summary {
  background: #f8fafc;
  color: var(--red);
  border-bottom: 1px solid var(--border);
}

.faq-section details[open] summary::after {
  content: "−";
  color: var(--red);
}

.vdt-rating-container {
  margin: 20px 0;
  padding: 14px 18px;
  background: #fffcf0;
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.vdt-stars {
  color: #fbbf24;
  font-size: 18px;
  display: flex;
  gap: 2px;
}

.vdt-rating-info {
  color: #4b5563;
  font-size: 14px;
}

.mbn-item:hover {
  text-decoration: none;
}

.mbn-icon {
  font-size: 18px;
  height: 22px;
  margin-bottom:5px;
}

@media (min-width: 769px) {
  .mobile-bottom-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .package-grid {
    grid-template-columns: 1fr;
  }

  .data-num {
    font-size: 28px;
  }

  .pkg-price {
    font-size: 20px;
  }
}

.vt-5g-hub-seo .vt-sd-section {
  margin-top: 30px;
}

.vt-5g-hub-seo .vt-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
}

.vt-5g-hub-seo .vt-hero-detail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 15px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  color: #475569;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.vt-5g-hub-seo .vt-hero-detail:hover {
  color: #dc2626;
  border-color: #fecaca;
}

.vt-5g-hub-seo .vt-hero-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin-top: 14px;
  padding: 13px 16px;
  border-radius: 10px;
  background: #f8fafc;
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.vt-5g-hub-seo .vt-hero-trust i {
  color: #16a34a;
  margin-right: 4px;
}

.vt-5g-hub-seo .pkg-detail-link {
  display: inline-block;
  margin-top: 9px;
  color: #475569;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.vt-5g-hub-seo .pkg-detail-link:hover {
  color: #dc2626;
}

.vt-highlight-longcycle {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding: 17px;
  border: 1px solid #99f6e4;
  border-radius: 14px;
  background: linear-gradient(135deg,#ecfdf5,#ffffff);
}

.vt-highlight-longcycle-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #0f766e;
  color: #fff;
  font-size: 19px;
}

.vt-highlight-longcycle-content strong {
  display: block;
  margin-top: 3px;
  color: #134e4a;
  font-size: 17px;
}

.vt-highlight-longcycle-content p {
  margin: 4px 0 0;
  color: #475569;
  font-size: 13px;
  line-height: 1.55;
}

.vt-highlight-label {
  display: block;
  color: #0f766e;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .5px;
}

.vt-highlight-longcycle-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.vt-mini-link {
  color: #475569;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
}

.vt-5g-hub-seo .price-table .benefit span,
.vt-5g-hub-seo .price-table .price span {
  display: block;
  margin-top: 2px;
}

.vt-5g-hub-seo .price-table a {
  text-decoration: none;
}

.vt-sd-info > i {
  margin-top: 2px;
  color: #e11d48;
}

.vt-sd-info a {
  color: inherit;
  text-decoration: none;
}

.vt-sd-info-blue > i {
  color: #2563eb;
}

.vt-sd-info-orange {
  border-color: #fed7aa;
  background: #fff7ed;
  color: #9a3412;
}

.vt-sd-info-orange > i {
  color: #ea580c;
}

.vt-condition-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
}

.vt-condition-card {
  padding: 17px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #fff;
}

.vt-condition-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  border-radius: 11px;
  background: #fff1f2;
  color: #e11d48;
  font-size: 18px;
}

.vt-condition-card strong {
  display: block;
  color: #1e293b;
  font-size: 14px;
}

.vt-condition-card p {
  margin: 5px 0 0;
  color: #64748b;
  font-size: 12.5px;
  line-height: 1.6;
}

.vt-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
}

.vt-knowledge-card {
  padding: 17px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #f8fafc;
}

.vt-knowledge-card h3 {
  margin: 0 0 7px;
  padding: 0;
  border: 0;
  color: #1e293b;
  font-size: 14px;
}

.vt-knowledge-card p {
  margin: 0;
  color: #64748b;
  font-size: 12.5px;
  line-height: 1.65;
}

.vt-register-box {
  padding: 22px;
  border: 2px solid #fecaca;
  border-radius: 14px;
  background: #fff1f2;
  text-align: center;
}

.vt-register-label {
  display: block;
  margin-bottom: 5px;
  color: #9f1239;
  font-size: 11px;
  font-weight: 900;
}

.vt-register-syntax {
  display: block;
  color: #be123c;
  font-size: 22px;
  line-height: 1.4;
  letter-spacing: .5px;
}

.vt-register-box p {
  margin: 8px 0 15px;
  color: #64748b;
  font-size: 13px;
}

.vt-sd-faq .vt-sd-section-head {
  grid-column: 1/-1;
}

.vt-final-box {
  padding: 22px;
  border: 1px solid #fecdd3;
  border-radius: 14px;
  background: linear-gradient(135deg,#fff1f2,#fff);
}

.vt-final-box h2 {
  margin: 0 0 12px;
  padding: 0;
  border: 0;
  color: #9f1239;
  font-size: 21px;
}

.vt-final-box h2 i {
  margin-right: 5px;
  color: #dc2626;
}

.vt-final-box p {
  margin: 0 0 7px;
  color: #475569;
  line-height: 1.65;
}

.vt-final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.vt-5g-hub-seo .vdt-rating-container {
  width: auto;
  max-width: 100%;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid #fde68a;
  border-radius: 10px;
  background: #fffcf0;
}

.vt-5g-hub-seo .vdt-stars {
  display: flex;
  gap: 2px;
  color: #f59e0b;
}

@media (max-width:768px) {
  .vt-5g-hub-seo .vt-sd-section {
    margin-top: 25px;
  }

  .vt-5g-hub-seo .vt-hero-actions {
    flex-direction: column;
  }

  .vt-5g-hub-seo .vt-hero-actions > a {
    width: 100%;
  }

  .vt-5g-hub-seo .vt-hero-trust {
    justify-content: flex-start;
    gap: 7px 12px;
    font-size: 12px;
  }

  .vt-highlight-longcycle {
    grid-template-columns: 1fr;
  }

  .vt-highlight-longcycle-icon {
    margin: 0 auto;
  }

  .vt-highlight-longcycle-content {
    text-align: center;
  }

  .vt-highlight-longcycle-actions {
    width: 100%;
  }

  .vt-highlight-longcycle-actions .btn-table-reg {
    width: 100%;
    text-align: center;
  }

  .vt-condition-grid,
  .vt-knowledge-grid,
  .vt-sd-faq {
    grid-template-columns: 1fr;
  }

  .vt-5g-hub-seo .vdt-rating-container {
    display: flex;
    width: 100%;
    justify-content: center;
    text-align: center;
  }

}

.vt-sd-seo {
  --vt-red: #e51c23;
  --vt-red-dark: #b51218;
  --vt-orange: #ea580c;
  --vt-blue: #2563eb;
  --vt-green: #16a34a;
  --vt-text: #172033;
  --vt-muted: #64748b;
  --vt-line: #e5e7eb;
  color: var(--vt-text);
  font-family: Arial,Helvetica,sans-serif;
}

.vt-sd-seo *,
.vt-sd-seo *:before,
.vt-sd-seo *:after {
  box-sizing: border-box;
}

.vt-sd-wrap {
  max-width: 100%;
  margin: 0 auto;
}

.vt-sd-img {
  text-align: center;
  margin: 19px 0;
}

.vt-sd-img img {
  display: block;
  width: 100%;
  max-width: 760px;
  height: auto;
  margin: 0 auto;
  border-radius: 16px;
  box-shadow: 0 7px 22px rgba(15,23,42,.10);
}

.vt-sd-section {
  margin: 27px 0 0;
}

.vt-sd-section-head {
  margin-bottom: 13px;
}

.vt-sd-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--vt-text);
  font-size: 21px;
  line-height: 1.3;
  font-weight: 900;
}

.vt-sd-section-title i {
  color: var(--vt-red);
}

.vt-sd-section-desc {
  margin: 6px 0 0;
  color: var(--vt-muted);
  font-size: 13.5px;
  line-height: 1.58;
}

.vt-sd-feature-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10px;
}

.vt-sd-feature {
  padding: 15px 12px;
  border: 1px solid var(--vt-line);
  border-radius: 16px;
  background: #fff;
  text-align: center;
}

.vt-sd-feature i {
  color: var(--vt-red);
  font-size: 24px;
}

.vt-sd-feature strong {
  display: block;
  margin-top: 8px;
  font-size: 13px;
}

.vt-sd-feature p {
  margin: 5px 0 0;
  color: var(--vt-muted);
  font-size: 11.5px;
  line-height: 1.45;
}

.vt-sd-info {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  border: 1px solid #fecdd3;
  border-radius: 14px;
  background: #fff1f2;
  color: #881337;
  font-size: 12.5px;
  line-height: 1.58;
  margin-bottom:20px;
}

.vt-sd-info i {
  margin-top: 2px;
  color: var(--vt-red);
}

.vt-sd-info-blue {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: #1e3a8a;
}

.vt-sd-info-blue i {
  color: #2563eb;
}

.condition-div {
  margin: 0;
}

.cond-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0 0 12px;
  border-bottom: 1px solid #fee2e2;
  color: #1e293b;
  font-size: 21px;
  font-weight: 900;
}

.cond-title i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #ef233c;
  color: #fff;
  font-size: 15px;
}

.cond-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none !important;
}

.cond-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid #e5e7eb;
  border-radius: 11px;
  background: #fff;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.55;
}

.cond-item::before,
.cond-item::marker {
  display: none !important;
  content: none !important;
}

.cond-item.type-success {
  border-color: #bbf7d0;
  background: #f0fdf4;
}

.cond-item.type-money {
  background: #fff;
}

.ci-icon {
  flex: 0 0 20px;
  width: 20px;
  color: #2563eb;
  text-align: center;
}

.type-success .ci-icon {
  color: #16a34a;
}

.type-money .ci-icon {
  color: #d97706;
}

.ci-content {
  flex: 1;
  min-width: 0;
}

.vt-sd-upsell {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border: 1px solid #bbf7d0;
  border-radius: 18px;
  background: linear-gradient(135deg,#f0fdf4 0%,#fff 100%);
  box-shadow: 0 6px 20px rgba(22,163,74,.06);
}

.vt-sd-upsell-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #16a34a;
  color: #fff;
  font-size: 20px;
}

.vt-sd-upsell-content {
  flex: 1;
  min-width: 0;
}

.vt-sd-upsell-label {
  margin-bottom: 4px;
  color: #15803d;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .5px;
}

.vt-sd-upsell h2 {
  margin: 0;
  color: #14532d;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 900;
}

.vt-sd-upsell p {
  margin: 7px 0 12px;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.55;
}

.vt-sd-upsell-compare {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.vt-sd-upsell-compare span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  background: #fff;
  color: #64748b;
  font-size: 11px;
}

.vt-sd-upsell-compare span.featured {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #15803d;
}

.vt-sd-upsell-compare i {
  color: #16a34a;
  font-size: 11px;
}

.vt-sd-upsell-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 40px;
  padding: 9px 16px;
  border-radius: 10px;
  background: #16a34a;
  color: #fff !important;
  text-decoration: none !important;
  font-size: 11.5px;
  font-weight: 900;
}

.vt-sd-sms-guide {
  padding: 22px 16px;
  border-radius: 20px;
  background: #0f172a;
  color: #fff;
  text-align: center;
}

.vt-sd-sms-guide h2 {
  margin: 0;
  color: #fff !important;
  font-size: 21px;
  font-weight: 900;
}

.vt-sd-sms-guide p {
  margin: 7px 0 14px;
  color: #cbd5e1;
  font-size: 13px;
}

.vt-sd-sms-formula {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.vt-sd-sms-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 15px;
  border-radius: 12px;
  background: #fff;
  color: #111827;
  font-size: 17px;
  font-weight: 900;
}

.vt-sd-sms-chip strong {
  margin-left: 5px;
  color: var(--vt-red);
}

.vt-sd-sms-num {
  background: var(--vt-red);
  color: #fff;
  font-size: 22px;
}

.vt-sd-sms-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 46px;
  margin-top: 15px;
  padding: 11px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg,var(--vt-red),var(--vt-red-dark));
  color: #fff !important;
  text-decoration: none !important;
  font-size: 13px;
  font-weight: 900;
}

.vt-sd-manage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.vt-sd-manage {
  padding: 15px;
  border: 1px solid var(--vt-line);
  border-radius: 15px;
  background: #fff;
  color: #475569;
  font-size: 12px;
  line-height: 1.7;
}

.vt-sd-manage-title {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
  color: var(--vt-red-dark);
  font-size: 13px;
  font-weight: 900;
}

.vt-sd-faq {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.vt-sd-faq details {
  overflow: hidden;
  border: 1px solid var(--vt-line);
  border-radius: 13px;
  background: #fff;
}

.vt-sd-faq summary {
  padding: 13px;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 800;
}

.vt-sd-faq .answer {
  padding: 0 13px 13px;
  color: var(--vt-muted);
  font-size: 12px;
  line-height: 1.55;
}

.vt-sd-final {
  padding: 22px 18px;
  border-radius: 20px;
  background: radial-gradient(circle at 90% 10%,rgba(255,255,255,.16),transparent 30%),
        linear-gradient(135deg,#e51c23,#a90d14);
  color: #fff;
  text-align: center;
}

.vt-sd-final h2 {
  margin: 0;
  color: #fff !important;
  font-size: 20px;
  font-weight: 900;
}

.vt-sd-final p {
  margin: 7px 0 14px;
  color: rgba(255,255,255,.92);
  font-size: 12.5px;
}

.vt-sd-final .vt-sd-cta {
  max-width: 500px;
  margin: 0 auto;
  background: #fff;
  box-shadow: none;
}

.vt-sd-final-syntax {
  margin-top: 9px;
  font-size: 11px;
}

.vt-sd-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100%;
  min-height: 50px;
  margin-top: 14px;
  padding: 12px 10px;
  border-radius: 13px;
  background: linear-gradient(135deg,var(--vt-red),var(--vt-red-dark));
  text-align: center;
  text-decoration: none !important;
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 6px 16px rgba(229,28,35,.24);
}

@media (max-width:640px) {
  .vt-sd-seo {
    padding-bottom: 72px;
  }

  .vt-sd-feature-grid,
  .vt-sd-manage-grid,
  .vt-sd-faq {
    grid-template-columns: 1fr;
  }

  .cond-title {
    font-size: 18px;
  }

  .cond-item {
    align-items: flex-start;
  }

  .vt-sd-upsell {
    padding: 14px;
  }

  .vt-sd-upsell-icon {
    flex-basis: 40px;
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .vt-sd-upsell h2 {
    font-size: 16px;
  }

  .vt-sd-mobile {
    position: fixed;
    z-index: 9999;
    left: 0;
    right: 0;
    bottom: 0;
    display: block;
    padding: 6px
              max(6px,env(safe-area-inset-right))
              calc(6px + env(safe-area-inset-bottom))
              max(6px,env(safe-area-inset-left));
    border-top: 1px solid #e5e7eb;
    background: rgba(255,255,255,.98);
    box-shadow: 0 -5px 18px rgba(15,23,42,.13);
  }

  .vt-sd-mobile a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 49px;
    border-radius: 11px;
    background: linear-gradient(135deg,var(--vt-red),var(--vt-red-dark));
    color: #fff !important;
    text-decoration: none !important;
    font-size: 12px;
    font-weight: 900;
  }
}

@media (prefers-reduced-motion:reduce) {
  .vt-sd-seo *,
  .vt-sd-seo *:before,
  .vt-sd-seo *:after {
    animation: none !important;
    transition: none !important;
  }
}

.viettel-package-card {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  max-width: 420px;
  margin: 20px auto;
  overflow: hidden;
  color: #333;
  border: 1px solid #f0f0f0;
}

.package-badge {
  background: linear-gradient(135deg, #e63946, #d90429);
  color: #fff;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.package-badge i {
  margin-right: 5px;
  color: #ffb703;
}

.package-header-main {
  background: linear-gradient(180deg, #d90429 0%, #ef233c 100%);
  color: #fff;
  padding: 16px 16px 20px 16px;
  text-align: left;
}

.package-main-title {
  font-size: 22px;
  margin: 0 0 10px 0;
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
  line-height: 1.35;
  text-align: center;
}

.vt-highlight-sapo {
  background: #ffffff;
  border: 2px solid #ffccd5;
  border-radius: 12px;
  padding: 14px;
  margin-top: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sapo-home {
  font-size: 14px;
  line-height: 1.55;
  color: #2b2b2b;
  margin: 0;
}

.sapo-home code {
  background: #fff5f5;
  border: 1px dashed #d90429;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: #d90429;
  font-weight: bold;
}

.package-main-box {
  background: #fff;
  margin: -15px 16px 16px 16px;
  border-radius: 12px;
  box-shadow: 0 6px 16px rgba(217, 4, 41, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border: 1px solid rgba(217, 4, 41, 0.1);
  position: relative;
  z-index: 2;
}

.price-side .code {
  display: block;
  font-size: 18px;
  font-weight: 900;
  color: #d90429;
}

.price-side .price {
  font-size: 16px;
  font-weight: 700;
  color: #2b2b2b;
}

.price-side .period {
  font-size: 11px;
  color: #666;
}

.data-side {
  background: linear-gradient(135deg, #d90429, #8d0801);
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  text-align: center;
}

.data-side .label {
  display: block;
  font-size: 10px;
  opacity: 0.8;
}

.data-side .capacity {
  display: block;
  font-size: 18px;
  font-weight: 900;
}

.data-side .tag {
  font-size: 9px;
  background: #ffb703;
  color: #000;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 700;
}

.package-benefits {
  list-style: none;
  padding: 0 16px;
  margin: 0 0 16px 0;
}

.package-benefits li {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  background: #fdfdfd;
  border: 1px solid #eee;
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 13px;
}

.benefit-icon {
  margin-right: 10px;
  color: #d90429;
  font-size: 15px;
  width: 20px;
  text-align: center;
}

.syntax-box {
  background: #fff5f5;
  border: 1px dashed #d90429;
  margin: 0 16px 16px 16px;
  padding: 12px 10px;
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: #333;
}

.syntax-code {
  background: #d90429;
  color: #fff;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.syntax-number {
  background: #212529;
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
}

.package-cta-footer {
  background: #fff;
  border-top: 1px solid #eee;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-price-info .name {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #333;
}

.footer-price-info .name i {
  color: #d90429;
  margin-right: 3px;
}

.footer-price-info .cost {
  font-size: 14px;
  font-weight: 800;
  color: #d90429;
}

.btn-register-pulse {
  background: linear-gradient(135deg, #ff4d4f, #d90429);
  color: #fff;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 4px 10px rgba(217, 4, 41, 0.3);
  transition: transform 0.2s;
}

.btn-register-pulse i {
  margin-right: 4px;
}

.btn-register-pulse:active {
  transform: scale(0.96);
}

@media (max-width: 768px) {
  .vt-highlight-sapo {
    text-align: justify;
  }
}

@media (min-width: 768px) {
  .viettel-package-card {
    max-width: 100%;
    border-radius: 20px;
  }

  .package-header-main {
    padding: 24px 30px;
  }

  .package-main-title {
    font-size: 22px;
    text-align: left;
  }

  .sapo-home {
    font-size: 14.5px;
  }

  .package-main-box {
    margin: -20px 30px 20px 30px;
    padding: 20px 24px;
  }

  .price-side .code {
    font-size: 22px;
  }

  .price-side .price {
    font-size: 18px;
  }

  .package-benefits {
    padding: 0 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .package-benefits li {
    margin-bottom: 0;
    font-size: 14px;
    padding: 12px 16px;
  }

  .syntax-box {
    margin: 0 30px 20px 30px;
    font-size: 14px;
    padding: 14px;
  }

  .package-cta-footer {
    padding: 16px 30px;
  }

  .footer-price-info .name {
    font-size: 14px;
  }

  .footer-price-info .cost {
    font-size: 16px;
  }

  .btn-register-pulse {
    font-size: 14px;
    padding: 12px 28px;
  }
}

.vt-sd-mobile {
  display: none;
}

@media (max-width:768px) {
  .vt-sd-mobile {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: block;
    padding: 8px 12px;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
    background: rgba(255,255,255,.96);
    border-top: 1px solid #e5e7eb;
    box-shadow: 0 -6px 20px rgba(15,23,42,.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .vt-sd-mobile a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    min-height: 48px;
    padding: 11px 16px;
    background: linear-gradient(
              135deg,
              #ee0033 0%,
              #d7002d 100%
          );
    color: #fff !important;
    font-size: 15px;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    text-decoration: none !important;
    border-radius: 14px;
    box-shadow: 0 5px 14px rgba(238,0,51,.28);
  }

  .vt-sd-mobile a i {
    font-size: 16px;
    color: #fff;
  }

  body {
    padding-bottom: 76px;
  }
}

.mobile-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #fff;
  backdrop-filter: blur(10px);
  box-shadow: 0 -4px 20px rgba(0,0,0,.1);
  display: flex;
  padding: 8px 4px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  z-index: 9999;
  border-top: 1px solid #f0f0f0;
  justify-content: space-between;
}

.mbn-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none !important;
  gap: 3px;
  transition: all 0.2s;
  position: relative;
  color: #64748b;
  margin: 0 3px;
  padding: 6px 2px;
  border: 1px solid #eee;
  border-radius: 8px;
  background: #f8f9fa;
}

.mbn-icon i {
  color: #555;
  font-size: 16px;
}

.mbn-text {
  text-align: center;
}

.mbn-title {
  font-weight: 800;
  font-size: 11px;
  text-transform: uppercase;
  display: block;
  color: #333;
  line-height: 1.2;
}

.mbn-price {
  font-size: 9px;
  font-weight: 500;
  margin-top: 1px;
  white-space: nowrap;
  display: block;
  color: #666;
}

.active-item {
  color: var(--red);
  flex: 1.1;
  border: none;
  background: linear-gradient(135deg,#dc2626 0%,#991b1b 100%);
  box-shadow: 0 4px 10px rgba(220,38,38,.3);
}

.active-item .mbn-title,
.active-item .mbn-price,
.active-item .mbn-icon i {
  color: #fff;
}

.mbn-tag {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 2px 6px;
  border-radius: 4px;
  background: #f59e0b;
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0,0,0,.15);
}

@media (min-width:769px) {
  .mobile-bottom-nav {
    display: none;
  }
}


.vt-choice-box {
  margin: 0;
  padding: 16px;
  border: 1px solid #bbf7d0;
  border-radius: 16px;
  background: linear-gradient(180deg,#f0fdf4 0%,#ffffff 100%);
  box-shadow: 0 5px 18px rgba(15,23,42,.05);
}

.vt-choice-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid #e5e5e5;
  padding-bottom: 10px;
  color: #166534;
  font-size: 15px;
  line-height: 1.4;
  font-weight: 900;
  text-transform: uppercase;
}

.vt-choice-title i {
  color: #16a34a;
  font-size: 16px;
}

.vt-choice-list {
  margin: 0;
  padding: 0;
  list-style: none !important;
}

.vt-choice-list li {
  position: relative;
  margin: 0;
  padding: 9px 0 9px 26px;
  border-bottom: 1px solid #dcfce7;
  color: #475569;
  font-size: 12.8px;
  line-height: 1.55;
}

.vt-choice-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.vt-choice-list li:first-child {
  padding-top: 0;
}

.vt-choice-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: #16a34a;
  color: #fff;
  font-size: 10px;
  line-height: 1;
  font-weight: 900;
}

.vt-choice-list li:first-child::before {
  top: 0;
}

.vt-package-specs-wrap {
  overflow: hidden;
  border: 1px solid #e5e7eb;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 5px 18px rgba(15,23,42,.05);
}

.vt-package-specs {
  width: 100%;
  margin: 0;
  border: 0;
  border-collapse: collapse;
  background: #fff;
  font-size: 12.8px;
  line-height: 1.5;
}

.vt-package-specs td {
  padding: 11px 13px;
  vertical-align: top;
  border: 0;
}

.vt-package-specs tr:not(:last-child) td {
  border-bottom: 1px solid #eef2f7;
}

.vt-package-specs td:first-child {
  width: 34%;
  background: #f8fafc;
  color: #475569;
  font-weight: 700;
}

.vt-package-specs td:last-child {
  color: #1e293b;
}

.vt-package-specs strong {
  color: #111827;
}

.vt-package-specs tr:first-child td {
  background: #fff1f2;
}

.vt-package-specs tr:first-child td:first-child,
.vt-package-specs tr:first-child td:last-child {
  color: #b51218;
}

.vt-package-specs tr:last-child td {
  background: #fff7f8;
}

.vt-package-specs tr:last-child td:first-child {
  color: #b51218;
}

.vt-package-specs tr:last-child td:last-child strong {
  color: #d90429;
}

#dieu-kien,
#phu-hop,
#data,
#thong-so,
#so-sanh,
#dang-ky,
#khong-dang-ky-duoc,
#chu-ky-dai,
#quan-ly,
#faq {
  scroll-margin-top: 85px;
}

@media (max-width:640px) {
  .vt-choice-box {
    padding: 14px;
    border-radius: 14px;
  }

  .vt-choice-title {
    font-size: 14px;
  }

  .vt-choice-list li {
    padding-left: 24px;
    font-size: 12.3px;
    line-height: 1.55;
  }

  .vt-package-specs {
    font-size: 12px;
  }

  .vt-package-specs td {
    padding: 10px 9px;
  }

  .vt-package-specs td:first-child {
    width: 37%;
  }
}



  /* ---------- WRAPPER ---------- */
  .vt-dangky-section{
    background:linear-gradient(180deg,#fff7f9 0%,#ffeef2 100%);
    border:1px solid #ffd8de;
    border-radius:22px;
    padding:24px 24px 20px;
    box-shadow:var(--vt-shadow);
  }

  /* ---------- TIÊU ĐỀ + SUB ---------- */
  .vt-dangky-section .vt-sms-head{
    display:flex;align-items:center;justify-content:center;
    gap:10px;margin-bottom:6px;
  }
  .vt-dangky-section .vt-sms-head .fa-bolt{
    color:var(--vt-red);font-size:20px;
    filter:drop-shadow(0 2px 4px rgba(237,28,36,.3));
  }
  .vt-dangky-section .vt-sms-head h2{
    margin:0 !important;font-size:20px;font-weight:800;color:#222;letter-spacing:.3px;
  }
  .vt-dangky-section .vt-sms-sub{
    text-align:center;font-size:12px;color:var(--vt-muted);
    letter-spacing:1.8px;font-weight:600;text-transform:uppercase;margin-bottom:14px;
  }

  /* ---------- HỘP CÚ PHÁP SMS ---------- */
  .vt-dangky-section .vt-syntax-wrap{text-align:center;margin-bottom:12px}
  .vt-dangky-section .vt-syntax-box{
    background:#fff;border-radius:14px;padding:11px 18px;
    display:inline-flex;align-items:center;gap:14px;
    box-shadow:var(--vt-shadow-strong);
    border:1px solid #ffd8de;
    max-width:100%;flex-wrap:wrap;justify-content:center;
  }
  .vt-dangky-section .vt-syntax-pkg{
    font-family:'JetBrains Mono','Consolas',monospace;
    font-size:24px;font-weight:800;color:var(--vt-red);letter-spacing:.8px;
  }
  .vt-dangky-section .vt-syntax-pkg em{font-style:normal;color:var(--vt-red-dark);margin-left:6px}
  .vt-dangky-section .vt-syntax-sep{font-size:14px;color:#777;font-weight:600}
  .vt-dangky-section .vt-syntax-num{
    background:var(--vt-red);color:#fff;
    font-size:24px;font-weight:800;
    padding:5px 20px;border-radius:10px;letter-spacing:.8px;
    box-shadow:0 5px 12px rgba(237,28,36,.32);
  }

  /* ---------- VÍ DỤ ---------- */
  .vt-dangky-section .vt-sms-examples{
    display:flex;align-items:center;justify-content:center;
    gap:10px;flex-wrap:wrap;font-size:13px;margin-bottom:0px;
  }
  .vt-dangky-section .vt-sms-examples .vt-ex-label{color:var(--vt-muted);font-weight:600}
  .vt-dangky-section .vt-ex-item{
    background:#fff;border:1px solid #ffd8de;color:var(--vt-red-dark);
    padding:4px 12px;border-radius:8px;font-weight:700;
    font-family:'JetBrains Mono','Consolas',monospace;font-size:12.5px;
  }
  .vt-dangky-section .vt-ex-item em{font-style:normal;color:var(--vt-red);margin-left:4px}
  .vt-dangky-section .vt-ex-divider{color:#e3a5af;font-weight:300}

  /* ---------- 4 FEATURE CARDS ---------- */
  .vt-dangky-section .vt-features{
    display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
    padding-top:18px;border-top:1px dashed #ffc8d1;

  }
  .vt-dangky-section .vt-feature{
    background:#fff;border:1px solid #ffe0e6;border-radius:12px;
    padding:12px 14px;display:flex;align-items:center;gap:12px;
    box-shadow:0 2px 8px rgba(237,28,36,.05);
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .vt-dangky-section .vt-feature:hover{transform:translateY(-2px);box-shadow:var(--vt-shadow)}
  .vt-dangky-section .vt-feature-ico{
    flex:0 0 auto;width:42px;height:42px;border-radius:50%;
    background:linear-gradient(135deg,var(--vt-red) 0%,var(--vt-red-dark) 100%);
    color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;
    box-shadow:0 4px 10px rgba(237,28,36,.3);
  }
  .vt-dangky-section .vt-feature-ico.is-5g{font-size:13px;font-weight:800;letter-spacing:.5px}
  .vt-dangky-section .vt-feature-body{display:flex;flex-direction:column;line-height:1.3;min-width:0; text-align:left}
  .vt-dangky-section .vt-feature-body strong{font-size:14.5px;color:#1a1a1a;font-weight:700}
  .vt-dangky-section .vt-feature-body span{font-size:12.5px;color:var(--vt-muted);margin-top:2px}

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:900px){
    .vt-dangky-section .vt-features{grid-template-columns:repeat(2,1fr)}
    .vt-dangky-section .vt-syntax-pkg,
    .vt-dangky-section .vt-syntax-num{font-size:22px}
  }
  @media (max-width:600px){
    .vt-dangky-section .vt-features{grid-template-columns:1fr;gap:10px}
    .vt-dangky-section .vt-feature{padding:11px 13px}
    .vt-dangky-section .vt-feature-ico{width:40px;height:40px;font-size:17px}
  }
  @media (max-width:480px){
    .vt-dangky-section{padding:18px 16px 16px;border-radius:18px}
    .vt-dangky-section .vt-sms-head h2{font-size:16px}
    .vt-dangky-section .vt-sms-sub{letter-spacing:1.2px;margin-bottom:10px}
    .vt-dangky-section .vt-syntax-box{padding:9px 14px;gap:10px}
    .vt-dangky-section .vt-syntax-pkg,
    .vt-dangky-section .vt-syntax-num{font-size:19px}
    .vt-dangky-section .vt-syntax-num{padding:4px 14px;border-radius:8px}
    .vt-dangky-section .vt-sms-examples{gap:6px;font-size:12px}
    .vt-dangky-section .vt-ex-item{padding:3px 10px;font-size:11.5px}
  }
  
  
  /* ==========================================================================
   4. VD FINAL ANSWER / WARNING / BRIDGE
   ========================================================================== */
.vd-final-answer,
.vd-warning {
  margin: 25px 0;
  font-family: 'Segoe UI', Roboto, sans-serif;
  position: relative;
}
.vd-final-answer {
  background-color: #fff5f5;
  border-left: 0px solid #e03;
  padding: 15px;
  border-radius: 0 12px 12px 0;
  color: #333;
  box-shadow: 0 4px 15px rgba(238, 0, 51, 0.08);
}
.vd-final-answer strong,
.vd-warning strong { color: #b91c1c; }

.vd-final-answer .answer-title {
  margin: 0 0 15px;
  font-weight: 700;
  font-size: 18px;
  color: #b91c1c;
  position: relative;
  padding-left: 30px;
  line-height: 1.4;
}
.vd-final-answer .answer-title::before {
  content: "\f0e7";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  color: #e03;
  font-size: 20px;
}
.vd-final-answer .answer-list { list-style: none; padding: 0; margin: 0; }
.vd-final-answer .answer-list li {
  position: relative;
  padding-left: 35px;
  margin-bottom: 12px;
  line-height: 1.5;
  font-size: 15px;
}
.vd-final-answer .answer-list li::before {
  position: absolute;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  left: 0;
  top: 2px;
  color: #e03;
  font-size: 16px;
  width: 25px;
  text-align: center;
}
.vd-final-answer .li-wifi::before   { content: "\f1eb"; }
.vd-final-answer .li-social::before { content: "\f144"; }
.vd-final-answer .li-day::before    { content: "\f783"; }

.vd-final-answer .answer-note {
  margin: 15px 0 0;
  padding-top: 15px;
  border-top: 1px dashed #fecaca;
  font-size: 14px;
  color: #64748b;
  font-style: italic;
}

.vd-warning {
  background-color: #fff;
  border: 1px solid #fecaca;
  border-left: 5px solid #b91c1c;
  padding: 20px 20px 20px 65px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(185, 28, 28, 0.05);
}
.vd-warning::before {
  content: "\f071";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 20px;
  top: 22px;
  font-size: 28px;
  color: #b91c1c;
}
.vd-warning .warn-title {
  display: block;
  font-weight: 700;
  font-size: 16px;
  color: #b91c1c;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.vd-warning p,
.vd-bridge p {
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}
.vd-warning p { color: #333; }

.vd-bridge {
  background-color: #f8fafc;
  border-top: 3px solid #e03;
  padding: 20px 25px;
  margin: 0;
  border-radius: 0 0 8px 8px;
  position: relative;
  font-family: 'Segoe UI', Roboto, sans-serif;
}
.vd-bridge p {
  position: relative;
  padding-left: 35px;
  color: #334155;
}
.vd-bridge p::before {
  content: "\f05a";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 22px;
  color: #e03;
}
.vd-bridge strong { color: #e03; }

/* ==========================================================================
   28. STEP GUIDE (hướng dẫn các bước)
   ========================================================================== */
.step-guide {
  max-width: 800px;
  margin: 30px auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.step-item {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  border: 1px solid #e2e8f0;
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
@media (hover: hover) and (pointer: fine) {
  .step-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(238, 0, 51, 0.1);
  }
}
@media (min-width: 600px) {
  .step-item { flex-direction: row; }
}

.step-num {
  background: var(--red);
  color: #fff;
  font-weight: 800;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
@media (min-width: 600px) {
  .step-num {
    flex: 0 0 150px;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}
.step-item:nth-child(1) .step-num::before { content: '\f058'; }
.step-item:nth-child(2) .step-num::before { content: '\f53c'; }
.step-item:nth-child(3) .step-num::before { content: '\f1d8'; }
.step-item:nth-child(4) .step-num::before { content: '\f0e0'; }
.step-item .step-num::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 2rem;
}
.step-content {
  padding: 20px 25px;
  line-height: 1.7;
  color: #334155;
  background: #f8fafc;
  flex: 1;
}
.step-content strong { color: #0f172a; }
.step-content code {
  background: #fff;
  border: 1px solid #cbd5e1;
  padding: 3px 8px;
  border-radius: 6px;
  color: var(--red);
  font-weight: 700;
  font-family: monospace;
  font-size: 1.15rem;
}

/* ==========================================================================
   30. CONCLUSION SECTION
   ========================================================================== */
.list-hub,
.super-hub-content { padding: 25px; background: #fff; }

.admin-conclusion-section {
  background: #fff;
  padding: 40px 15px;
}
.conclusion-box {
  margin: 0 auto;
  background: #fdf8f8;
  padding: 30px !important;
  position: relative;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}
.conclusion-content {
  color: #444;
  font-size: 15px;
  line-height: 1.6;
  font-style: italic;
  text-align: justify;

}
#dieu-kien-dang-ky
{
	padding-left:15px!important;
	padding-right:15px!important;
}
.admin-sign { margin-top: 25px; text-align: right; }
.admin-sign strong {
  display: block;
  color: #c00;
  font-size: 16px;
  font-weight: 700;
}
.admin-sign span { font-size: 13px; color: #666; }

.conclusion-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 0;
  border-bottom: 0 solid #eee;
  padding-bottom: 15px;
  gap: 15px;
}
.conclusion-icon {
  width: 40px;
  height: 40px;
  fill: #c00;
  font-size: 32px;
  color: #c00;
  margin: 0;
}
.conclusion-header h3 {
  text-align: left;
  margin: 0;
  color: #c00;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
}


/* ====== DESKTOP SIDE NAV ====== */
.vt-desktop-nav { display: none; }

@media (min-width: 1200px) {
  .vt-desktop-nav {
    display: block;
    position: fixed;
    top: 110px;
    right: 16px;
    width: 230px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
    z-index: 90;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    font-size: 13px;
  }
  .vt-desktop-nav .vdn-header {
    background: linear-gradient(135deg, #ee0033 0%, #c80029 100%);
    color: #fff;
    padding: 11px 14px;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.4px;
    border-radius: 14px 14px 0 0;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .vt-desktop-nav .vdn-list {
    list-style: none;
    margin: 0;
    padding: 6px 0;
  }
  .vt-desktop-nav .vdn-list li { margin: 0; }
  .vt-desktop-nav .vdn-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 14px;
    color: #475569;
    text-decoration: none;
    font-size: 13px;
    line-height: 1.4;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
  }
  .vt-desktop-nav .vdn-link i {
    width: 16px;
    text-align: center;
    color: #94a3b8;
    flex-shrink: 0;
    font-size: 12px;
  }
  .vt-desktop-nav .vdn-link:hover {
    background: #fef2f2;
    color: #ee0033;
    border-left-color: #ee0033;
  }
  .vt-desktop-nav .vdn-link:hover i { color: #ee0033; }
  .vt-desktop-nav .vdn-link.active {
    background: #fef2f2;
    color: #ee0033;
    font-weight: 700;
    border-left-color: #ee0033;
  }
  .vt-desktop-nav .vdn-link.active i { color: #ee0033; }
  .vt-desktop-nav .vdn-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin: 10px 14px 14px;
    padding: 10px 12px;
    background: linear-gradient(135deg, #ee0033 0%, #c80029 100%);
    color: #fff;
    text-decoration: none;
    text-align: center;
    border-radius: 50px;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(238, 0, 51, 0.3);
    transition: all 0.3s;
  }
  .vt-desktop-nav .vdn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(238, 0, 51, 0.42);
    color: #fff;
  }
  .vt-desktop-nav::-webkit-scrollbar { width: 4px; }
  .vt-desktop-nav::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 2px;
  }
  .vt-desktop-nav ul li::before
  {
  content:"";
  }
  .vt-desktop-nav ul li
  {
  	padding-left:0px;
  }
}

@media (min-width: 1440px) {
  .vt-desktop-nav { right: 28px; width: 250px; }
}