@import url("vt-fonts.css");

/**
 * viettel.dangkymang.vn - High-Converting Modern Telecom UI/UX Stylesheet 2026
 * Chuẩn Brand Identity Viettel Telecom & Tối Ưu Hóa Chuyển Đổi Mobile/Desktop
 */

:root {
  /* ==========================================================================
     QUY CHUẨN TYPOGRAPHY VIETTEL TELECOM (ĐỒNG BỘ 100% TOÀN SITE)
     ========================================================================== */
  --vt-font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --vt-font: var(--vt-font-family);
  --vt-font-heading: var(--vt-font-family);

  /* Thang độ đậm (Font Weights) */
  --vt-fw-regular: 400;
  --vt-fw-medium: 500;
  --vt-fw-semibold: 600;
  --vt-fw-bold: 700;
  --vt-fw-extrabold: 800;
  --vt-fw-black: 900;

  /* Thang chiều cao dòng (Line Heights) */
  --vt-lh-tight: 1.25;
  --vt-lh-snug: 1.4;
  --vt-lh-normal: 1.6;

  /* Palette màu thương hiệu */
  --vt-red: #ee0033;
  --vt-red-dark: #b80026;
  --vt-red-light: #fff1f3;
  --vt-orange: #ff6a00;
  --vt-gold: #f59e0b;
  --vt-blue: #0284c7;
  --vt-green: #059669;
  --vt-purple: #7c3aed;
  --vt-text-main: #0f172a;
  --vt-text-sub: #475569;
  --vt-border: #e2e8f0;
  --vt-bg-gray: #f8fafc;
  --vt-radius: 14px;
  --vt-radius-sm: 8px;
  --vt-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  --vt-shadow-hover: 0 14px 30px rgba(238, 0, 51, 0.15);
}

/* Chống tràn ngang trên thiết bị di động (Mobile Horizontal Scroll / Overflow Fix) */
html,
body {
  overflow-x: hidden !important;
  max-width: 100% !important;
  width: 100% !important;
  position: relative !important;
  -webkit-text-size-adjust: 100%;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
}

#wrapper,
.page-wrapper,
#content,
#main,
.site-content,
.section-content,
.vt-seo-longform,
.vt-packages-section,
.vt-moi-section {
  max-width: 100% !important;
  overflow-x: hidden;
}

/* ==========================================================================
   QUY CHUẨN ÁP DỤNG FONT CHỮ ĐỒNG BỘ TOÀN SITE
   ========================================================================== */
html,
body,
button,
input,
optgroup,
select,
textarea {
  font-family: var(--vt-font-family) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tiêu đề & các thành phần chính yếu */
h1, h2, h3, h4, h5, h6,
.vt-hero-h1,
.vt-hero-subtitle,
.vt-section-title,
.vt-card-name-title,
.vt-brand-name,
.vt-footer-col h4,
.new__posts h1,
.new__posts h2,
.new__posts h3,
.new__posts h4,
.entry-title,
.nav > li > a {
  font-family: var(--vt-font-heading) !important;
  letter-spacing: -0.01em;
}

/* Bảo vệ icon fonts nguyên bản không bị ảnh hưởng */
.dashicons,
.dashicons-before:before,
[class*="dashicons-"],
[class*="dashicons-"]:before,
.fa,
.fas,
.far,
.fal,
.fab,
[class*="fa-"],
[class*="fa-"]:before {
  font-family: dashicons, FontAwesome !important;
}

/* ==========================================================================
   1. HERO SECTION 2 CỘT ĐỒ HỌA CAO CẤP
   ========================================================================== */
.vt-hero-section-v2 {
  background: linear-gradient(135deg, #ee0033 0%, #b80026 60%, #8b001d 100%);
  color: #fff;
  border-radius: var(--vt-radius);
  padding: 32px 28px;
  margin-bottom: 25px;
  box-shadow: 0 10px 30px rgba(238, 0, 51, 0.22);
  position: relative;
  overflow: hidden;
}

.vt-hero-section-v2::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 70%);
  pointer-events: none;
}

.vt-hero-container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}

.vt-hero-badge-gold {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(245, 158, 11, 0.5);
  color: #fef08a;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.vt-hero-badge-gold .dashicons {
  font-size: 16px;
  width: 16px;
  height: 16px;
  color: #facc15;
}

.vt-hero-h1 {
  font-family: var(--vt-font-heading) !important;
  font-size: 27px;
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 12px 0;
  color: #ffffff !important;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.vt-hero-subtitle {
  font-size: 14.5px;
  opacity: 0.95;
  line-height: 1.6;
  margin: 0 0 16px 0;
  color: #ffe4e6;
}

.vt-hero-features-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.vt-feat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.vt-feat-icon {
  font-size: 18px;
  line-height: 1;
}

.vt-feat-item strong {
  display: block;
  font-size: 12.5px;
  color: #fff;
  line-height: 1.2;
}

.vt-feat-item span {
  font-size: 11px;
  color: #fecdd3;
}

/* Hero: Khối cú pháp đăng ký (thay cho ô tìm kiếm trùng lặp) */
.vt-hero-syntax-card {
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 14px;
}

.vt-syntax-label {
  display: block;
  font-size: 12.5px;
  color: #ffe4e6;
  margin-bottom: 8px;
  font-weight: 600;
}

.vt-syntax-line {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.vt-syntax-main,
.vt-syntax-number {
  background: #ffffff;
  color: var(--vt-red);
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 17px;
  letter-spacing: 0.3px;
  line-height: 1.3;
}

.vt-syntax-send {
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
}

.vt-syntax-free {
  display: block;
  color: #86efac;
  font-weight: 600;
  font-size: 12px;
  line-height: 1.45;
}

/* Hero: chip lối tắt tới từng nhóm gói */
.vt-hero-quicklinks {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.vt-quicklink {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #ffffff !important;
  text-decoration: none !important;
  padding: 7px 13px;
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

.vt-quicklink:hover,
.vt-quicklink:focus-visible {
  background: #ffffff;
  color: var(--vt-red) !important;
  transform: translateY(-1px);
}

/* Hero Image Card Column */
.vt-hero-image-col {
  display: flex;
  justify-content: center;
  align-items: center;
}

.vt-hero-img-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
  border: 2px solid rgba(255,255,255,0.25);
  background: #000;
  max-width: 100%;
}

.vt-hero-banner-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.vt-hero-img-card:hover .vt-hero-banner-img {
  transform: scale(1.03);
}

.vt-floating-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  padding: 8px 14px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.3);
}

.vt-badge-pulse {
  width: 10px;
  height: 10px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: vtPulse 1.8s infinite;
}

@keyframes vtPulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.vt-floating-badge strong {
  display: block;
  font-size: 11.5px;
  color: #facc15;
  letter-spacing: 0.5px;
}

.vt-floating-badge span {
  font-size: 11px;
  color: #e2e8f0;
}

/* ==========================================================================
   2. SMART FILTER BAR & CATEGORY TABS
   ========================================================================== */
.vt-packages-section {
  margin: 30px 0;
}

.vt-smart-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius-sm);
  padding: 10px 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  flex-wrap: wrap;
  gap: 12px;
}

.vt-filter-group-price {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.vt-filter-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--vt-text-sub);
}

.vt-price-filter-btn {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  color: #334155;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.vt-price-filter-btn:hover {
  background: #e2e8f0;
}

.vt-price-filter-btn.active {
  background: var(--vt-red);
  color: #ffffff;
  border-color: var(--vt-red);
  box-shadow: 0 2px 6px rgba(238,0,51,0.25);
}

.vt-live-search-mini {
  display: flex;
  align-items: center;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 20px;
  padding: 4px 12px;
  width: 250px;
}

.vt-live-search-mini .dashicons {
  color: #94a3b8;
  font-size: 16px;
  width: 16px;
  height: 16px;
  margin-right: 4px;
}

.vt-live-search-mini input {
  border: none !important;
  background: transparent !important;
  outline: none !important;
  box-shadow: none !important;
  font-size: 12.5px;
  color: var(--vt-text-main);
  width: 100%;
  padding: 2px 0;
}

/* Category Navigation Tabs */
.vt-tabs-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 14px 2px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
  border-bottom: 2px solid var(--vt-border);
}

.vt-tabs-nav::-webkit-scrollbar {
  height: 4px;
}

.vt-tabs-nav::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.vt-tab-btn {
  white-space: nowrap;
  background: #ffffff;
  border: 1.5px solid var(--vt-border);
  padding: 9px 18px;
  border-radius: 30px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--vt-text-sub);
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.vt-tab-btn:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: var(--vt-red);
}

.vt-tab-btn.active {
  background: var(--vt-red);
  color: #ffffff;
  border-color: var(--vt-red);
  box-shadow: 0 4px 12px rgba(238, 0, 51, 0.25);
}

.vt-tab-icon {
  font-size: 15px;
}

/* Tab Panels & Cards Grid */
.vt-tab-panel {
  display: none;
  padding-top: 22px;
  animation: vtFadeIn 0.25s ease-in-out;
}

.vt-tab-panel.active {
  display: block;
}

@keyframes vtFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.vt-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ==========================================================================
   3. HIGH-CONVERTING CARD UI 2026
   ========================================================================== */
.vt-card {
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  padding: 20px 18px 16px 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--vt-shadow);
  transition: all 0.25s ease;
}

.vt-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--vt-shadow-hover);
  border-color: rgba(238, 0, 51, 0.4);
}

.vt-card.featured {
  border: 2px solid var(--vt-red);
  background: linear-gradient(180deg, #fffafa 0%, #ffffff 100%);
}

.vt-card.featured::before {
  content: "★ NỔI BẬT";
  position: absolute;
  top: -11px;
  right: 18px;
  background: var(--vt-red);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 6px rgba(238,0,51,0.3);
}

.vt-card-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.vt-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-hot {
  background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
  color: #fff;
}

.badge-5g {
  background: linear-gradient(135deg, #8a2387 0%, #e94057 50%, #f27121 100%);
  color: #fff;
}

.badge-combo {
  background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
  color: #fff;
}

.badge-mxh {
  background: linear-gradient(135deg, #f107a3 0%, #7b2ff7 100%);
  color: #fff;
}

.vt-card-cycle-pill {
  font-size: 11px;
  color: #64748b;
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.vt-card-name-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--vt-text-main);
  margin: 0 0 6px 0;
  letter-spacing: 0.5px;
}

/* Data Highlight */
.vt-card-data-highlight {
  background: #f8fafc;
  border-left: 3px solid var(--vt-red);
  padding: 10px 12px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 12px;
}

.vt-data-primary {
  font-size: 18px;
  font-weight: 900;
  color: var(--vt-red);
  line-height: 1.2;
}

.vt-data-secondary {
  font-size: 12px;
  color: var(--vt-text-sub);
  margin-top: 2px;
}

/* Price Block */
.vt-card-price-block {
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.vt-price-val {
  font-size: 21px;
  font-weight: 900;
  color: #0f172a;
}

.vt-price-sub {
  font-size: 12px;
  color: #64748b;
}

/* Features List */
.vt-card-features-list {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 0 16px 0 !important;
  flex: 1;
}

.vt-card-features-list li {
  font-size: 12.5px;
  color: #334155;
  margin-bottom: 6px;
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.vt-check-icon {
  background: #dcfce7;
  color: #16a34a;
  border-radius: 50%;
  width: 15px;
  height: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Actions */
.vt-card-actions-v2 {
  display: block;
  margin-bottom: 8px;
}

.vt-btn-register-main {
  width: 100%;
  box-sizing: border-box;
  background: linear-gradient(135deg, #ee0033 0%, #c6002b 100%);
  color: #ffffff !important;
  border: none;
  padding: 8px 16px;
  height: 38px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  white-space: nowrap;
  text-decoration: none !important;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(238, 0, 51, 0.22);
}

.vt-btn-register-main:hover {
  background: #b80026;
  color: #ffffff !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(238, 0, 51, 0.35);
  text-decoration: none !important;
}

.vt-btn-sms-icon {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.vt-card-syntax-hint {
  font-size: 11px;
  color: #64748b;
  text-align: center;
  border-top: 1px dashed #e2e8f0;
  padding-top: 8px;
  line-height: 1.5;
}

.vt-card-syntax-hint strong {
  color: var(--vt-red);
}

.vt-syntax-free-tag {
  display: inline-block;
  color: #16a34a;
  font-weight: 600;
  font-size: 10.5px;
  margin-left: 2px;
}

/* ==========================================================================
   4. INTERACTIVE CHECK SIM WIDGET
   ========================================================================== */
.vt-check-sim-box-v2 {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
  border-radius: var(--vt-radius);
  padding: 24px 26px;
  margin: 30px 0;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.15);
  border: 1px solid #334155;
}

.vt-check-sim-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  align-items: center;
}

.vt-check-sim-badge {
  display: inline-block;
  background: rgba(238, 0, 51, 0.2);
  color: #fda4af;
  border: 1px solid rgba(238, 0, 51, 0.4);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 8px;
}

.vt-check-sim-info h3 {
  font-size: 18px;
  font-weight: 800;
  color: #ffffff !important;
  margin: 0 0 6px 0;
}

.vt-check-sim-info p {
  font-size: 13.5px;
  color: #94a3b8;
  margin: 0;
  line-height: 1.5;
}

.vt-check-sim-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vt-sim-input-wrap {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: 8px;
  padding: 4px 12px;
}

.vt-sim-input-wrap .dashicons {
  color: #64748b;
  font-size: 18px;
  margin-right: 6px;
}

.vt-sim-input-wrap input {
  border: none !important;
  background: transparent !important;
  outline: none !important;
  box-shadow: none !important;
  font-size: 14px;
  color: #0f172a;
  width: 100%;
  padding: 8px 0;
}

.vt-btn-check-sim {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ee0033 0%, #c6002b 100%);
  color: #fff;
  border: none;
  padding: 11px 16px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(238,0,51,0.3);
  text-align: center;
  text-decoration: none;
}

.vt-btn-check-sim:hover {
  background: #b80026;
  transform: translateY(-1px);
}

/* ==========================================================================
   5. VISUAL 3-STEP REGISTRATION SECTION
   ========================================================================== */
.vt-steps-section-v2 {
  margin: 35px 0;
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  padding: 28px 24px;
  box-shadow: var(--vt-shadow);
}

.vt-section-header {
  margin-bottom: 22px;
}

.vt-section-sub {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--vt-red);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}

.vt-section-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--vt-text-main);
  margin: 0 0 6px 0;
}

.vt-section-desc {
  font-size: 13.5px;
  color: var(--vt-text-sub);
  margin: 0;
}

.vt-steps-banner-wrap {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
  border: 1px solid var(--vt-border);
}

.vt-step-banner-img {
  display: block;
  width: 100%;
  max-width: 850px;
  margin: 0 auto;
  height: auto;
}

.vt-steps-grid-v2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.vt-step-card-v2 {
  background: #f8fafc;
  border: 1px solid var(--vt-border);
  border-radius: 10px;
  padding: 18px 16px;
  text-align: left;
  transition: all 0.2s;
}

.vt-step-card-v2:hover {
  background: #ffffff;
  border-color: var(--vt-red);
  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.vt-step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.vt-step-badge {
  background: var(--vt-red);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 6px;
}

.vt-step-icon {
  font-size: 22px;
  color: var(--vt-red);
}

.vt-step-card-v2 h4 {
  font-size: 15px;
  font-weight: 800;
  color: var(--vt-text-main);
  margin: 0 0 6px 0;
}

.vt-step-card-v2 p {
  font-size: 12.5px;
  color: var(--vt-text-sub);
  line-height: 1.5;
  margin: 0;
}

/* ==========================================================================
   6. FAQ SECTION V2
   ========================================================================== */
.vt-faq-section-v2 {
  margin: 35px 0;
}

.vt-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.vt-faq-item {
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.vt-faq-item:hover,
.vt-faq-item[open] {
  border-color: rgba(238, 0, 51, 0.35);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

/* summary là phần tử bấm được — bỏ mũi tên mặc định của trình duyệt */
.vt-faq-question {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 18px;
  margin: 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--vt-text-main);
  line-height: 1.45;
  user-select: none;
}

.vt-faq-question::-webkit-details-marker {
  display: none;
}

.vt-faq-question:focus-visible {
  outline: 2px solid var(--vt-red);
  outline-offset: -2px;
}

.vt-faq-q-index {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--vt-red-light);
  color: var(--vt-red);
  font-size: 12.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.vt-faq-item[open] .vt-faq-q-index {
  background: var(--vt-red);
  color: #ffffff;
}

.vt-faq-q-text {
  flex: 1 1 auto;
}

.vt-faq-q-chevron {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 2px solid var(--vt-text-sub);
  border-bottom: 2px solid var(--vt-text-sub);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.vt-faq-item[open] .vt-faq-q-chevron {
  transform: rotate(-135deg);
  border-color: var(--vt-red);
}

.vt-faq-answer {
  padding: 0 18px 16px 52px;
  font-size: 14px;
  color: var(--vt-text-sub);
  line-height: 1.65;
}

.vt-faq-answer code {
  background: var(--vt-bg-gray);
  border: 1px solid var(--vt-border);
  color: var(--vt-red);
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .vt-faq-q-chevron {
    transition: none;
  }
}

@media (max-width: 480px) {
  .vt-faq-answer {
    padding-left: 18px;
  }
}

/* ==========================================================================
   7. MODAL POPUP DESKTOP (QR & SYNTAX)
   ========================================================================== */
.vt-sms-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  z-index: 999999;
  align-items: center;
  justify-content: center;
  padding: 15px;
}

.vt-sms-modal-overlay.active {
  display: flex;
}

.vt-sms-modal {
  background: #ffffff;
  border-radius: 16px;
  max-width: 520px;
  width: 100%;
  padding: 24px 22px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  position: relative;
  text-align: center;
  animation: vtModalZoom 0.2s ease;
}

@keyframes vtModalZoom {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.vt-sms-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  font-size: 24px;
  color: #94a3b8;
  cursor: pointer;
  line-height: 1;
}

.vt-sms-modal-title {
  font-size: 18px;
  font-weight: 900;
  /* style.css áp `color:#FFF !important` + nền đỏ cho mọi thẻ H3,
     nuốt mất màu chữ khai báo ở đây nên tiêu đề modal thành một dải đỏ. */
  color: var(--vt-text-main) !important;
  background: transparent !important;
  padding: 0 !important;
  display: block !important;
  margin: 0 0 6px 0;
}

.vt-sms-modal-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: center;
  background: #f8fafc;
  border: 1.5px dashed #cbd5e1;
  border-radius: 10px;
  padding: 14px;
  margin: 14px 0 6px 0;
  text-align: center;
}

.vt-modal-qr-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.vt-modal-qr-wrapper {
  background: #fff;
  padding: 4px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  display: inline-flex;
}

.vt-modal-qr-wrapper img {
  display: block;
  border-radius: 4px;
}

.vt-modal-syntax-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.vt-sms-modal-box {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.vt-sms-syntax-copy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.vt-syntax-display {
  font-size: 17px;
  font-weight: 900;
  color: var(--vt-red);
  letter-spacing: 0.5px;
}

.vt-btn-copy {
  background: #e2e8f0;
  border: none;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.vt-btn-copy:hover {
  background: #cbd5e1;
}

/* ==========================================================================
   8. MOBILE STICKY ACTION BAR
   ========================================================================== */
.vt-mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #ffffff;
  border-top: 1px solid var(--vt-border);
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.08);
  z-index: 99999;
  padding: 5px 6px calc(5px + env(safe-area-inset-bottom));
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
}

.vt-sticky-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none !important;
  color: var(--vt-text-sub) !important;
  padding: 5px 2px;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
  min-height: 46px;
}

.vt-sticky-item:hover,
.vt-sticky-item:focus-visible {
  background: var(--vt-red-light);
  color: var(--vt-red) !important;
}

.vt-sticky-icon {
  font-size: 16px;
  line-height: 1;
  margin-bottom: 2px;
}

.vt-sticky-label {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.2px;
  line-height: 1.2;
}

.vt-sticky-hint {
  font-size: 9px;
  font-weight: 600;
  color: var(--vt-text-sub);
  opacity: 0.75;
  line-height: 1.25;
  margin-top: 1px;
}

.vt-sticky-zalo {
  color: var(--vt-blue) !important;
}

/* Nút Zalo nổi: trên mobile đã gộp vào thanh sticky nên ẩn đi để hết che nội dung.
   Trên desktop giữ lại nhưng đưa sang phải và thu nhỏ. */
@media (max-width: 768px) {
  .zalo-fixed {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .zalo-fixed {
    left: auto !important;
    right: 20px !important;
    bottom: 24px !important;
    width: 52px !important;
    height: 52px !important;
  }
  .zalo-fixed img {
    width: 52px !important;
    height: auto !important;
  }
}

/* ==========================================================================
   9. RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 900px) {
  .vt-hero-container {
    grid-template-columns: 1fr;
  }
  .vt-hero-image-col {
    order: -1;
  }
  .vt-hero-banner-img {
    max-height: 240px;
  }
  .vt-check-sim-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .vt-steps-grid-v2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .vt-mobile-sticky-bar {
    display: grid;
  }
  body {
    padding-bottom: 62px !important;
  }
  .vt-hero-h1 {
    font-size: 21px;
  }
  .vt-hero-features-bar {
    flex-direction: column;
    gap: 6px;
  }
  .vt-syntax-main,
  .vt-syntax-number {
    font-size: 15.5px;
    padding: 5px 10px;
  }
  .vt-smart-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .vt-live-search-mini {
    width: 100%;
  }
  .vt-cards-grid {
    grid-template-columns: 1fr;
  }
  .vt-sms-modal-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
/* ==========================================================================
   10. HEADER & MENU ĐIỀU HƯỚNG - SỬA LỖI MENU TRÀN & TỐI ƯU GIAO DIỆN
   ========================================================================== */

/* 1. Header Wrapper & Masthead Bar */
#header,
.header,
.header-wrapper,
#masthead,
.header-main {
  background: var(--vt-red, #ee0033) !important;
  background-color: var(--vt-red, #ee0033) !important;
  height: 70px !important;
  min-height: 70px !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
  position: relative;
  z-index: 999;
}

/* 2. Header Inner: Căn chỉnh linh hoạt full-width, gỡ bỏ hạn chế 80% / 1080px */
#masthead .header-inner {
  width: 100% !important;
  max-width: 1400px !important;
  margin: 0 auto !important;
  padding: 0 20px !important;
  height: 70px !important;
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: space-between !important;
  box-sizing: border-box !important;
}

/* 3. Logo Viettel gọn gàng */
#masthead #logo.logo {
  flex: 0 0 auto !important;
  width: auto !important;
  max-width: 160px !important;
  margin: 0 16px 0 0 !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  order: 1 !important;
}

#masthead #logo a {
  display: inline-flex !important;
  align-items: center !important;
  text-decoration: none !important;
}

#masthead #logo img.header_logo {
  height: 44px !important;
  width: auto !important;
  max-width: 155px !important;
  object-fit: contain !important;
  display: block !important;
}

/* 4. Khung Menu chính (Desktop >= 992px) */
@media screen and (min-width: 992px) {
  #masthead .top-menu {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    order: 2 !important;
  }

  /* 5. Max Mega Menu Top Level - Khóa trên 1 hàng ngang duy nhất không tràn/xuống dòng */
  #masthead #mega-menu-wrap-primary {
    background: transparent !important;
    width: auto !important;
    clear: none !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
    height: 70px !important;
    margin: 0 !important;
    padding: 0 !important;
    white-space: nowrap !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item {
    flex: 0 0 auto !important;
    display: inline-flex !important;
    align-items: center !important;
    height: 70px !important;
    margin: 0 !important;
    padding: 0 !important;
    white-space: nowrap !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item > a.mega-menu-link {
    height: 70px !important;
    line-height: 70px !important;
    padding: 0 9px !important;
    font-size: 13.5px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    white-space: nowrap !important;
    display: inline-flex !important;
    align-items: center !important;
    background: transparent !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    letter-spacing: -0.1px !important;
    box-sizing: border-box !important;
    transition: background-color 0.15s ease, color 0.15s ease !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item:hover > a.mega-menu-link,
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item > a.mega-menu-link:focus,
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item.mega-toggle-on > a.mega-menu-link {
    background-color: rgba(255, 255, 255, 0.18) !important;
    color: #ffffff !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-item-has-children > a.mega-menu-link > span.mega-indicator {
    margin-left: 4px !important;
    font-size: 9px !important;
    display: inline-block !important;
    vertical-align: middle !important;
  }

  /* Sub-menu dropdown */
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-flyout ul.mega-sub-menu {
    top: 70px !important;
    background: #ffffff !important;
    border-radius: 8px !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2) !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    overflow: hidden !important;
    z-index: 99999 !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link {
    height: 38px !important;
    line-height: 38px !important;
    padding: 0 16px !important;
    font-size: 13.5px !important;
    color: #2b2b2b !important;
    background: #ffffff !important;
    transition: background-color 0.15s ease, color 0.15s ease !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link:hover,
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link:focus {
    background: #fff1f3 !important;
    color: var(--vt-red, #ee0033) !important;
  }
}

/* 6. Hotline trên Header */
#masthead .vt-header-hotline-col {
  flex: 0 0 auto !important;
  margin: 0 0 0 16px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  order: 3 !important;
}

.vt-header-hotline {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  text-decoration: none !important;
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.14) !important;
  border: 1px solid rgba(255, 255, 255, 0.25) !important;
  padding: 6px 13px !important;
  border-radius: 22px !important;
  transition: background 0.2s !important;
  white-space: nowrap !important;
}

.vt-header-hotline:hover,
.vt-header-hotline:focus-visible {
  background: #ffffff !important;
  color: var(--vt-red, #ee0033) !important;
}

.vt-header-hotline-icon {
  font-size: 15px !important;
  line-height: 1 !important;
}

.vt-header-hotline-text {
  display: flex !important;
  flex-direction: column !important;
  line-height: 1.2 !important;
}

.vt-header-hotline-label {
  font-size: 10px !important;
  opacity: 0.85 !important;
}

.vt-header-hotline-num {
  font-size: 14px !important;
  font-weight: 800 !important;
  letter-spacing: 0.3px !important;
}

/* 7. Tablet ngang & Laptop nhỏ (992px - 1240px) */
@media screen and (min-width: 992px) and (max-width: 1240px) {
  #masthead .header-inner {
    padding: 0 10px !important;
  }
  #masthead #logo.logo {
    margin-right: 8px !important;
  }
  #masthead #logo img.header_logo {
    height: 38px !important;
    max-width: 125px !important;
  }
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item > a.mega-menu-link {
    padding: 0 5px !important;
    font-size: 12.5px !important;
    letter-spacing: -0.3px !important;
  }
  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-item-has-children > a.mega-menu-link > span.mega-indicator {
    margin-left: 2px !important;
  }
  #masthead .vt-header-hotline-col {
    margin-left: 8px !important;
  }
  .vt-header-hotline {
    padding: 5px 9px !important;
    gap: 4px !important;
  }
  .vt-header-hotline-label {
    display: none !important;
  }
  .vt-header-hotline-num {
    font-size: 13px !important;
  }
}

/* 8. Tablet dọc & Mobile (<= 991px) */
@media screen and (max-width: 991px) {
  #header,
  .header-wrapper,
  #masthead.header-main {
    height: 60px !important;
    min-height: 60px !important;
  }
  #masthead .header-inner {
    height: 60px !important;
    padding: 0 12px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
  }
  #masthead #logo.logo {
    order: 1 !important;
    margin: 0 !important;
  }
  #masthead #logo img.header_logo {
    height: 34px !important;
    max-width: 115px !important;
  }
  #masthead .vt-header-hotline-col {
    order: 2 !important;
    margin: 0 8px !important;
  }
  .vt-header-hotline {
    padding: 5px 10px !important;
    gap: 4px !important;
  }
  .vt-header-hotline-label {
    display: none !important;
  }
  .vt-header-hotline-num {
    font-size: 13px !important;
  }
  #masthead .top-menu {
    order: 3 !important;
    flex: 0 0 auto !important;
    margin: 0 !important;
    display: block !important;
  }
  #masthead #mega-menu-wrap-primary {
    width: auto !important;
    background: transparent !important;
  }
  #masthead #mega-menu-wrap-primary .mega-menu-toggle {
    height: 36px !important;
    line-height: 36px !important;
    padding: 0 10px !important;
    background: rgba(255, 255, 255, 0.15) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    border-radius: 18px !important;
    display: flex !important;
    align-items: center !important;
    box-sizing: border-box !important;
  }
  #masthead #mega-menu-wrap-primary .mega-menu-toggle .mega-toggle-block-1 button.mega-toggle-standard {
    color: #ffffff !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    gap: 5px !important;
    display: flex !important;
    align-items: center !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    height: 100% !important;
  }

  /* Off-canvas Drawer chuẩn mobile - Dùng transform translateX để chống tràn ngang */
  #masthead #mega-menu-wrap-primary #mega-menu-primary {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    left: auto !important;
    width: 300px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    background: linear-gradient(180deg, #ba0024 0%, #820017 100%) !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    padding: 60px 0 40px 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    z-index: 9999999999 !important;
    box-shadow: -6px 0 25px rgba(0, 0, 0, 0.45) !important;
    transform: translateX(105%) !important;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.28s !important;
    visibility: hidden !important;
    display: flex !important;
    white-space: normal !important;
    pointer-events: none !important;
  }

  #masthead #mega-menu-wrap-primary .mega-menu-toggle.mega-menu-open + #mega-menu-primary {
    transform: translateX(0) !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  /* Nút đóng drawer trên mobile */
  #masthead #mega-menu-wrap-primary .mega-menu-toggle ~ button.mega-close {
    position: fixed !important;
    top: 12px !important;
    right: 14px !important;
    left: auto !important;
    width: 36px !important;
    height: 36px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.2) !important;
    color: #ffffff !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border: 1px solid rgba(255, 255, 255, 0.35) !important;
    z-index: 10000000000 !important;
    cursor: pointer !important;
    visibility: hidden !important;
    opacity: 0 !important;
    transition: opacity 0.2s ease, visibility 0.2s ease !important;
  }

  #masthead #mega-menu-wrap-primary .mega-menu-toggle.mega-menu-open ~ button.mega-close {
    visibility: visible !important;
    opacity: 1 !important;
  }

  /* Lớp phủ mờ nền khi mở menu mobile */
  #masthead #mega-menu-wrap-primary .mega-menu-toggle.mega-menu-open:after {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    content: "" !important;
    background: rgba(0, 0, 0, 0.5) !important;
    backdrop-filter: blur(2px) !important;
    -webkit-backdrop-filter: blur(2px) !important;
    z-index: 9999999998 !important;
    cursor: pointer !important;
  }

  /* Các mục menu cấp 1 trên mobile */
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    flex: 0 0 auto !important;
    margin: 0 !important;
    padding: 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
    box-sizing: border-box !important;
    white-space: normal !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item > a.mega-menu-link {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    height: auto !important;
    min-height: 48px !important;
    line-height: 1.4 !important;
    padding: 12px 18px !important;
    font-size: 14.5px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    background: transparent !important;
    border-radius: 0 !important;
    text-decoration: none !important;
    box-sizing: border-box !important;
    white-space: normal !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item:hover > a.mega-menu-link,
  #masthead #mega-menu-wrap-primary #mega-menu-primary > li.mega-menu-item.mega-toggle-on > a.mega-menu-link {
    background-color: rgba(255, 255, 255, 0.12) !important;
    color: #ffffff !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-item-has-children > a.mega-menu-link > span.mega-indicator {
    float: none !important;
    margin-left: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 26px !important;
    height: 26px !important;
    border-radius: 4px !important;
    background: rgba(255, 255, 255, 0.15) !important;
    font-size: 10px !important;
  }

  /* Sub-menu cấp 2 trong drawer mobile (dạng accordion) */
  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu {
    display: none !important;
    position: static !important;
    width: 100% !important;
    top: auto !important;
    left: auto !important;
    background: rgba(0, 0, 0, 0.18) !important;
    padding: 4px 0 !important;
    margin: 0 !important;
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout.mega-toggle-on ul.mega-sub-menu {
    display: block !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07) !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item:last-child {
    border-bottom: none !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    min-height: 40px !important;
    line-height: 1.4 !important;
    padding: 10px 18px 10px 28px !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    color: rgba(255, 255, 255, 0.92) !important;
    background: transparent !important;
    box-sizing: border-box !important;
    text-decoration: none !important;
    border-radius: 0 !important;
  }

  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link:hover,
  #masthead #mega-menu-wrap-primary #mega-menu-primary li.mega-menu-flyout ul.mega-sub-menu li.mega-menu-item a.mega-menu-link:focus {
    background: rgba(255, 255, 255, 0.15) !important;
    color: #ffffff !important;
  }
}


/* ==========================================================================
   11. CÁC KHỐI NỘI DUNG CHUYÊN SÂU TRANG CHỦ (Đợt 2)
   ========================================================================== */
.vt-block {
  margin: 38px 0;
}

.vt-block-title {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--vt-text-main);
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--vt-red);
}

.vt-block-lead {
  font-size: 15px;
  line-height: 1.65;
  color: var(--vt-text-sub);
  margin: 0 0 20px;
}

.vt-block h3 {
  font-size: 17.5px;
  font-weight: 700;
  color: var(--vt-text-main);
  margin: 24px 0 10px;
  line-height: 1.4;
}

.vt-block p,
.vt-block li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--vt-text-sub);
}

.vt-block code {
  background: var(--vt-bg-gray);
  border: 1px solid var(--vt-border);
  color: var(--vt-red);
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

/* Ghi chú nhấn mạnh */
.vt-note {
  border-radius: 10px;
  padding: 14px 16px;
  margin: 18px 0;
  font-size: 14.5px;
  line-height: 1.65;
}

.vt-note-info {
  background: #eff6ff;
  border-left: 4px solid var(--vt-blue);
  color: #1e3a5f;
}

.vt-note-warn {
  background: #fffbeb;
  border-left: 4px solid var(--vt-gold);
  color: #713f12;
}

/* Danh sách có dấu tích */
.vt-check-list {
  list-style: none;
  padding: 0;
  margin: 14px 0;
}

.vt-check-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}

.vt-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--vt-green);
  font-weight: 800;
}

.vt-steps-ol {
  padding-left: 20px;
  margin: 14px 0;
}

.vt-steps-ol li {
  margin-bottom: 10px;
}

/* --- Bảng cuộn ngang có gợi ý --- */
.vt-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--vt-border);
  border-radius: 10px;
  background: #ffffff;
}

.vt-scroll-hint {
  display: none;
  font-size: 12.5px;
  color: var(--vt-text-sub);
  margin: 0 0 6px;
  font-style: italic;
}

.vt-block table {
  border-collapse: collapse;
  width: 100%;
  min-width: 640px;
  font-size: 14px;
}

.vt-block th,
.vt-block td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--vt-border);
  vertical-align: top;
  line-height: 1.55;
}

.vt-block thead th {
  background: var(--vt-red);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: none;
}

.vt-block tbody th {
  font-weight: 700;
  color: var(--vt-text-main);
  width: 22%;
}

.vt-block tbody tr:last-child th,
.vt-block tbody tr:last-child td {
  border-bottom: none;
}

.vt-block tbody tr:nth-child(even) th,
.vt-block tbody tr:nth-child(even) td {
  background: #fdf7f8;
}

.vt-error-quick {
  white-space: normal;
  font-weight: 600;
  color: var(--vt-text-main);
}

.vt-number-table tbody th {
  width: 15%;
  font-size: 17px;
  color: var(--vt-red);
  font-weight: 800;
}

/* --- Điều kiện theo nhóm SIM --- */
.vt-cond-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.vt-cond-item {
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-left: 4px solid var(--vt-text-sub);
  border-radius: 10px;
  padding: 15px 17px;
}

.vt-cond-ok {
  border-left-color: var(--vt-green);
  background: #f0fdf4;
}

.vt-cond-warn {
  border-left-color: var(--vt-gold);
}

.vt-cond-gic {
  border-left-color: var(--vt-purple);
  background: #faf5ff;
}

.vt-cond-name {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--vt-text-main);
  margin: 0 0 7px;
  line-height: 1.35;
}

.vt-cond-desc {
  font-size: 14px;
  margin: 0 0 9px;
}

.vt-cond-pkgs {
  font-size: 13.5px;
  margin: 0;
  color: var(--vt-text-main);
  font-weight: 600;
}

.vt-cond-pkgs span {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--vt-text-sub);
  margin-bottom: 2px;
}

/* --- Gợi ý theo đối tượng --- */
.vt-persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}

.vt-persona-card {
  background: #ffffff;
  border: 1px solid var(--vt-border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--vt-shadow);
}

.vt-persona-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px dashed var(--vt-border);
}

.vt-persona-icon {
  font-size: 26px;
  line-height: 1.1;
  flex: 0 0 auto;
}

.vt-persona-name {
  font-size: 16px;
  font-weight: 800;
  color: var(--vt-text-main);
  margin: 0 0 4px;
  line-height: 1.3;
}

.vt-persona-need {
  font-size: 13.5px;
  color: var(--vt-text-sub);
  margin: 0;
  line-height: 1.5;
}

.vt-persona-picks {
  list-style: none;
  padding: 0;
  margin: 0;
}

.vt-persona-picks li {
  padding: 9px 0;
  border-bottom: 1px solid var(--vt-border);
  font-size: 14px;
}

.vt-persona-picks li:last-child {
  border-bottom: none;
}

.vt-persona-code {
  display: inline-block;
  font-weight: 800;
  color: var(--vt-red);
  margin-bottom: 3px;
  text-decoration: none;
}

a.vt-persona-code:hover,
a.vt-persona-code:focus-visible {
  text-decoration: underline;
}

.vt-persona-why {
  display: block;
  font-size: 13.5px;
  color: var(--vt-text-sub);
  line-height: 1.6;
}

.vt-persona-note {
  font-size: 13px;
  color: var(--vt-text-main);
  background: var(--vt-red-light);
  border-radius: 8px;
  padding: 9px 12px;
  margin: 12px 0 0;
}

/* --- Khối tin cậy (Mục 5: Tại sao nên đăng ký...) --- */
.vt-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.vt-trust-card {
  background: #ffffff;
  border: 1px solid var(--vt-border, #e2e8f0);
  border-top: 3px solid var(--vt-red, #ee0033);
  border-radius: 10px;
  padding: 18px 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.vt-trust-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--vt-text-main, #0f172a);
  margin: 0 0 10px;
  line-height: 1.4;
}

.vt-trust-card p {
  font-size: 14.5px;
  color: var(--vt-text-sub, #334155);
  line-height: 1.6;
  margin: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}

@media (max-width: 768px) {
  .vt-trust-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .vt-trust-card {
    padding: 15px 16px !important;
  }
  .vt-trust-card h3 {
    font-size: 15.5px !important;
    line-height: 1.4 !important;
  }
  .vt-trust-card p {
    font-size: 14px !important;
    line-height: 1.55 !important;
  }
}

.vt-why-code-title {
  margin-top: 28px;
}

/* --- Link chi tiết trên thẻ gói --- */
.vt-card-detail-link {
  display: block;
  text-align: center;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--vt-border);
  font-size: 13px;
  font-weight: 600;
  color: var(--vt-text-sub) !important;
  text-decoration: none !important;
}

.vt-card-detail-link:hover,
.vt-card-detail-link:focus-visible {
  color: var(--vt-red) !important;
}

@media (max-width: 768px) {
  .vt-block-title {
    font-size: 19px;
  }
  .vt-block h3 {
    font-size: 16px;
  }
  .vt-scroll-hint {
    display: block;
  }
  .vt-block tbody th {
    width: auto;
  }
}

/* ==========================================================================
   12. GỠ NỀN ĐỎ ĐẶC KHỎI TIÊU ĐỀ TRÊN TRANG CHỦ
   --------------------------------------------------------------------------
   style.css (kế thừa theme cũ) có rule toàn cục `.h3, h3, h2` gắn nền đỏ đặc
   + color:#FFF !important cho MỌI thẻ H2/H3. Rule đó nuốt luôn các khối nội dung
   mới, và cũng là thứ làm phần nội dung SEO trông nặng nề.
   Chỉ ghi đè trong phạm vi bài viết trang chủ (`.new__posts`) để không đụng tới
   trang chi tiết gói cước và trang chuyên mục.
   ========================================================================== */
.new__posts .section-content h2,
.new__posts .section-content h3 {
  background: transparent !important;
  color: var(--vt-text-main) !important;
  padding: 0 !important;
  border-radius: 0 !important;
  display: block !important;
  font-weight: 800;
}

.new__posts .section-content h2 {
  font-size: 21px !important;
  line-height: 1.32;
  margin: 34px 0 12px;
  padding-bottom: 10px !important;
  border-bottom: 3px solid var(--vt-red) !important;
}

.new__posts .section-content h3 {
  font-size: 17px !important;
  line-height: 1.4;
  margin: 22px 0 9px;
  color: var(--vt-red-dark) !important;
}

/* Tiêu đề nằm trong các khối dựng sẵn giữ đúng kiểu riêng của khối */
.new__posts .vt-section-title,
.new__posts .vt-faq-question,
.new__posts .vt-cond-name,
.new__posts .vt-persona-name,
.new__posts .vt-trust-card h3,
.new__posts .vt-card-name-title {
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

.new__posts .vt-cond-name,
.new__posts .vt-persona-name,
.new__posts .vt-trust-card h3 {
  color: var(--vt-text-main) !important;
  font-size: 15.5px !important;
  margin: 0 0 7px !important;
}

.new__posts .vt-section-title {
  color: var(--vt-text-main) !important;
  font-size: 22px !important;
  font-weight: 900 !important;
  margin: 0 0 6px !important;
}

.new__posts .vt-card-name-title {
  color: #c6002b !important;
  font-size: 22px !important;
  font-weight: 900 !important;
  margin: 0 0 6px !important;
}

.new__posts .vt-block .vt-block-title {
  font-size: 22px !important;
  margin: 0 0 10px !important;
}

/* Tiêu đề trong hero và các khối nền đỏ/gradient giữ nguyên chữ trắng */
.new__posts .vt-hero-h1,
.new__posts .vt-check-sim-box-v2 h2,
.new__posts .vt-check-sim-box-v2 h3 {
  color: #ffffff !important;
}

@media (max-width: 768px) {
  .new__posts .section-content h2 {
    font-size: 19px !important;
  }
  .new__posts .section-content h3 {
    font-size: 16px !important;
  }
  .new__posts .vt-section-title {
    font-size: 18px !important;
  }
  .new__posts .vt-card-name-title {
    font-size: 16px !important;
  }
}

/* ==========================================================================
   13. ĐỢT 3 — LƯỚI 2 CỘT TRÊN MOBILE, TAB GHIM, THẺ GÓI GỌN
   ========================================================================== */

/* --- Ưu đãi gập trong thẻ (desktop mở sẵn, mobile gập lại) --- */
.vt-card-features {
  margin-bottom: 12px;
  flex: 1;
}

.vt-card-features-toggle {
  display: none; /* desktop: không cần nút gập */
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--vt-text-sub);
  padding: 6px 0;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--vt-border);
}

.vt-card-features-toggle::-webkit-details-marker {
  display: none;
}

.vt-card-features-chevron {
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--vt-text-sub);
  border-bottom: 2px solid var(--vt-text-sub);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.vt-card-features[open] .vt-card-features-chevron {
  transform: rotate(-135deg);
}

@media (prefers-reduced-motion: reduce) {
  .vt-card-features-chevron {
    transition: none;
  }
}

/* --- Dải tab ghim khi cuộn --- */
.vt-tabs-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--vt-bg-gray);
  scroll-snap-type: x proximity;
}

.vt-tabs-nav .vt-tab-btn {
  scroll-snap-align: start;
}

/* --- Chip lọc giá cuộn ngang một hàng --- */
.vt-filter-group-price {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  flex-wrap: nowrap;
  scrollbar-width: none;
}

.vt-filter-group-price::-webkit-scrollbar {
  display: none;
}

.vt-filter-group-price .vt-price-filter-btn,
.vt-filter-group-price .vt-filter-label {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

/* ==========================================================================
   MOBILE: lưới 2 cột + thẻ gọn
   ========================================================================== */
@media (max-width: 768px) {
  .vt-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .vt-card {
    padding: 12px 11px 11px;
    border-radius: 11px;
  }

  /* Ruy băng góc thay cho huy hiệu "NỔI BẬT" tràn ra ngoài khung */
  .vt-card.featured::before {
    top: 8px;
    right: 8px;
    left: auto;
    content: "★";
    font-size: 11px;
    padding: 1px 5px;
    border-radius: 4px;
  }

  .vt-card-top-row {
    gap: 4px;
    margin-bottom: 6px;
  }

  .vt-card-badge {
    font-size: 8.5px;
    padding: 2px 6px;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .vt-card-cycle-pill {
    font-size: 9px;
    padding: 2px 6px;
  }

  .vt-card-name-title {
    font-size: 14px !important;
    padding: 3px 8px !important;
    margin: 0 0 7px !important;
  }

  .vt-card-data-highlight {
    padding: 7px 9px;
    margin-bottom: 7px;
  }

  .vt-data-primary {
    font-size: 17px;
    line-height: 1.15;
  }

  .vt-data-secondary {
    font-size: 10.5px;
  }

  .vt-card-price-block {
    margin-bottom: 8px;
  }

  .vt-price-val {
    font-size: 17px;
  }

  .vt-price-sub {
    font-size: 10px;
  }

  /* Ưu đãi gập lại — đây là phần cắt được nhiều chiều cao nhất */
  .vt-card-features-toggle {
    display: flex;
  }

  .vt-card-features-list {
    margin: 7px 0 0 !important;
  }

  .vt-card-features-list li {
    font-size: 11.5px;
    line-height: 1.45;
    margin-bottom: 5px;
    gap: 5px;
  }

  .vt-card-actions-v2 {
    display: block;
    margin-bottom: 6px;
  }

  .vt-btn-register-main {
    padding: 7px 10px;
    height: 34px;
    font-size: 12px;
    letter-spacing: 0;
  }

  .vt-btn-register-main .dashicons {
    display: inline-block;
    font-size: 14px;
    width: 14px;
    height: 14px;
    line-height: 14px;
    margin-right: 2px;
  }

  .vt-card-syntax-hint {
    font-size: 10.5px;
    line-height: 1.4;
  }

  .vt-card-detail-link {
    font-size: 11px;
    margin-top: 6px;
    padding-top: 6px;
  }

  /* Tab ghim: chừa chỗ cho header dính phía trên */
  .vt-tabs-nav {
    padding: 8px 2px 10px;
    margin-bottom: 4px;
    box-shadow: 0 4px 10px -6px rgba(0, 0, 0, 0.25);
  }

  .vt-tab-btn {
    font-size: 12px;
    padding: 7px 12px;
  }
}

/* Máy rất nhỏ (dưới 340px) thì quay lại 1 cột cho khỏi vỡ chữ */
@media (max-width: 339px) {
  .vt-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Ruy băng ★ không được đè lên chip chu kỳ ở góc phải thẻ */
@media (max-width: 768px) {
  .vt-card.featured .vt-card-top-row {
    padding-right: 24px;
  }
}

/* Liên kết mã gói trong khối điều kiện */
.vt-cond-pkgs a {
  color: var(--vt-red) !important;
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}

.vt-cond-pkgs a:hover,
.vt-cond-pkgs a:focus-visible {
  border-bottom-style: solid;
}

/* ==========================================================================
   14. BRANDED VIETTEL RED FOOTER (MOCKUP 2026)
   ========================================================================== */
.vt-footer-viettel {
  background: linear-gradient(180deg, #ee0033 0%, #c6002b 100%) !important;
  color: #ffffff !important;
  padding: 48px 0 24px 0 !important;
  font-family: var(--vt-font) !important;
  line-height: 1.5;
  width: 100%;
}

.vt-footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.vt-footer-main-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
}

/* Cột thương hiệu */
.vt-footer-col-brand {
  flex: 0 0 290px;
  max-width: 320px;
}

.vt-footer-brand-logo a {
  text-decoration: none !important;
  display: block;
}

.vt-brand-name {
  display: block;
  font-size: 38px;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -1.5px;
  line-height: 1;
  text-transform: lowercase;
}

.vt-brand-slogan {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 4px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.vt-footer-social {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0;
}

.vt-social-icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff !important;
  text-decoration: none !important;
  transition: all 0.2s ease;
  background: rgba(255, 255, 255, 0.06);
}

.vt-social-icon-btn:hover {
  background: #ffffff;
  color: #ee0033 !important;
  border-color: #ffffff;
  transform: translateY(-2px);
}

.vt-social-zalo .vt-zalo-txt {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: -0.2px;
}

/* Hotline Card */
.vt-footer-hotline-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 10px 16px;
  border-radius: 12px;
  margin-top: 5px;
}

.vt-hotline-circle-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff;
  color: #ee0033;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vt-hotline-meta {
  display: flex;
  flex-direction: column;
}

.vt-hotline-number-big {
  font-size: 18px;
  font-weight: 900;
  color: #ffffff !important;
  text-decoration: none !important;
  line-height: 1.2;
}

.vt-hotline-desc {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.8);
}

/* 4 Cột liên kết */
.vt-footer-nav-cols {
  flex: 1 1 560px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.vt-footer-heading {
  font-size: 15px;
  font-weight: 800;
  color: #ffffff !important;
  margin: 0 0 14px 0;
  letter-spacing: 0.3px;
  position: relative;
  padding-bottom: 6px;
}

.vt-footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.45);
  border-radius: 2px;
}

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

.vt-footer-links li {
  margin-bottom: 9px !important;
  list-style: none !important;
}

.vt-footer-links a {
  color: rgba(255, 255, 255, 0.85) !important;
  text-decoration: none !important;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.2s ease;
  display: inline-block;
}

.vt-footer-links a:hover {
  color: #ffffff !important;
  transform: translateX(3px);
  text-decoration: underline !important;
}

/* Bottom Bar */
.vt-footer-bottom-row {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
}

.vt-footer-bottom-legal {
  flex: 1 1 500px;
  line-height: 1.5;
}

.vt-footer-bottom-copy {
  flex: 0 0 auto;
}

/* Responsive Footer */
@media (max-width: 900px) {
  .vt-footer-nav-cols {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .vt-footer-viettel {
    padding: 36px 0 75px 0 !important; /* chừa khoảng trống cho mobile sticky bar */
  }
  .vt-footer-main-row {
    flex-direction: column;
    gap: 24px;
  }
  .vt-footer-col-brand {
    flex: none !important;
    width: 100% !important;
    max-width: 100% !important;
    text-align: center;
  }
  .vt-footer-social {
    justify-content: center;
  }
  .vt-footer-hotline-box {
    margin: 0 auto;
  }
  .vt-footer-nav-cols {
    flex: none !important;
    width: 100% !important;
    max-width: 100% !important;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 14px;
  }
  .vt-footer-links a {
    overflow-wrap: break-word;
    word-break: break-word;
  }
  .vt-footer-bottom-row {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    margin-top: 24px;
    padding-top: 16px;
  }
  .vt-footer-bottom-legal {
    flex: none !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  .vt-footer-bottom-copy {
    flex: none !important;
    width: 100% !important;
  }
}

@media (max-width: 380px) {
  .vt-footer-container {
    padding: 0 14px;
  }
  .vt-footer-nav-cols {
    gap: 16px 8px;
  }
  .vt-footer-heading {
    font-size: 14px;
  }
  .vt-footer-links a {
    font-size: 12.5px;
  }
}

/* ==========================================================================
   GÓI CƯỚC VỪA CẬP NHẬT — khối [vt_goi_moi_cap_nhat] trên trang chủ
   Thiết kế cao cấp, nổi bật, tối ưu tỷ lệ chuyển đổi (CRO) 2026
   ========================================================================== */
.vt-moi-section {
  margin: 36px 0;
  background: linear-gradient(180deg, #fff5f6 0%, #ffffff 180px);
  border: 1.5px solid rgba(238, 0, 51, 0.15);
  border-radius: 20px;
  padding: 32px 24px 24px;
  box-shadow: 0 8px 30px rgba(238, 0, 51, 0.05);
}

.vt-moi-badge-header {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(238, 0, 51, 0.08);
  color: var(--vt-red);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
  border: 1px solid rgba(238, 0, 51, 0.15);
}

.vt-pulse-dot {
  width: 7px;
  height: 7px;
  background: var(--vt-red);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(238, 0, 51, 0.7);
  animation: vtPulseDot 1.8s infinite;
}

@keyframes vtPulseDot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(238, 0, 51, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(238, 0, 51, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(238, 0, 51, 0); }
}

.vt-moi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.vt-moi-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  padding: 24px 18px 18px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.vt-moi-card:hover {
  transform: translateY(-6px);
  border-color: rgba(238, 0, 51, 0.45);
  box-shadow: 0 16px 36px rgba(238, 0, 51, 0.14);
}

/* Thẻ Featured (Gói nổi bật nhất / Khuyên dùng) */
.vt-moi-card.featured {
  border: 2.5px solid var(--vt-red);
  background: linear-gradient(180deg, #fff7f8 0%, #ffffff 140px);
  box-shadow: 0 10px 32px rgba(238, 0, 51, 0.18);
  transform: scale(1.02);
  z-index: 2;
}

.vt-moi-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
  box-shadow: 0 18px 42px rgba(238, 0, 51, 0.22);
}

.vt-moi-ribbon {
  position: absolute;
  top: -13px;
  right: 14px;
  background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 12px;
  letter-spacing: 0.4px;
  box-shadow: 0 3px 10px rgba(255, 65, 108, 0.4);
  z-index: 3;
}

.vt-moi-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

/* Nhãn Badges nhận diện từng nhóm gói */
.vt-moi-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 12px;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.vt-moi-tag-all {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

.vt-moi-tag-5g {
  background: linear-gradient(135deg, #8a2387 0%, #e94057 50%, #f27121 100%);
}

.vt-moi-tag-mxh,
.vt-moi-tag-hot {
  background: linear-gradient(135deg, #f107a3 0%, #7b2ff7 100%);
}

.vt-moi-tag-vip {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.vt-moi-cycle-pill {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 8px;
}

.vt-moi-header {
  margin-bottom: 12px;
}

.vt-moi-name {
  font-size: 24px;
  font-weight: 900;
  color: #0f172a;
  margin: 0 0 2px;
  line-height: 1.2;
  letter-spacing: -0.4px;
}

.vt-moi-price-row {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.vt-moi-price {
  font-size: 24px;
  font-weight: 900;
  color: var(--vt-red);
  margin: 0;
  line-height: 1.2;
}

.vt-moi-cycle {
  font-size: 12.5px;
  font-weight: 600;
  color: #64748b;
}

.vt-moi-daily-cost {
  font-size: 11.5px;
  font-weight: 700;
  color: #059669;
  margin-top: 2px;
}

/* Khối Data nổi bật (Hero Data Pill) */
.vt-moi-data-highlight {
  background: linear-gradient(135deg, rgba(238, 0, 51, 0.05) 0%, rgba(255, 77, 109, 0.12) 100%);
  border: 1.5px solid rgba(238, 0, 51, 0.22);
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 14px;
  text-align: center;
  transition: border-color 0.2s ease;
}

.vt-moi-card.featured .vt-moi-data-highlight {
  background: linear-gradient(135deg, rgba(238, 0, 51, 0.08) 0%, rgba(255, 77, 109, 0.18) 100%);
  border-color: rgba(238, 0, 51, 0.35);
}

.vt-moi-data-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.vt-moi-data-num {
  font-size: 22px;
  font-weight: 900;
  color: var(--vt-red);
  line-height: 1;
}

.vt-moi-data-unit {
  font-size: 13.5px;
  font-weight: 800;
  color: #0f172a;
}

.vt-moi-data-sub {
  font-size: 12px;
  font-weight: 600;
  color: #475569;
  margin-top: 3px;
}

.vt-moi-mxh-badge {
  display: inline-block;
  margin-top: 6px;
  font-size: 11px;
  font-weight: 800;
  color: #7b2ff7;
  background: rgba(123, 47, 247, 0.1);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid rgba(123, 47, 247, 0.2);
}

/* Danh sách ưu đãi với Checkmark */
.vt-moi-feats {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  flex: 1 1 auto;
}

.vt-moi-feats li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12.8px;
  line-height: 1.45;
  color: #334155;
}

.vt-moi-feats li strong {
  color: #0f172a;
  font-weight: 700;
}

.vt-moi-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  min-width: 17px;
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
  border-radius: 50%;
  font-size: 10.5px;
  font-weight: 900;
  margin-top: 2px;
}

/* Hành động: Nút SMS + Cú pháp */
.vt-moi-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  margin-top: auto;
}

.vt-moi-section .vt-moi-btn,
.vt-moi-section a.vt-moi-btn.dangky.data-sms.signup {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100% !important;
  margin: 0 !important;
  background: linear-gradient(135deg, #ee0033 0%, #c4002b 100%) !important;
  background-image: linear-gradient(135deg, #ee0033 0%, #c4002b 100%) !important;
  color: #ffffff !important;
  text-align: center;
  text-transform: none;
  text-decoration: none !important;
  font-size: 14.5px !important;
  font-weight: 800 !important;
  line-height: normal;
  padding: 12px 14px !important;
  border: 0 !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 14px rgba(238, 0, 51, 0.32) !important;
  cursor: pointer;
  transition: all 0.2s ease !important;
}

.vt-moi-section .vt-moi-btn:hover,
.vt-moi-section a.vt-moi-btn.dangky.data-sms.signup:hover {
  background: linear-gradient(135deg, #d6002c 0%, #9e0020 100%) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(238, 0, 51, 0.42) !important;
  color: #ffffff !important;
}

.vt-moi-syntax-hint {
  font-size: 11px;
  color: #64748b;
  text-align: center;
  margin-top: 4px;
}

.vt-moi-syntax-hint strong {
  color: #0f172a;
}

.vt-moi-syntax-hint .vt-free-tag {
  color: #059669;
  font-weight: 700;
}

.vt-moi-link {
  text-align: center;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--vt-blue);
  text-decoration: none;
  margin-top: 4px;
  transition: color 0.2s ease;
}

.vt-moi-link:hover {
  text-decoration: underline;
  color: var(--vt-red);
}

.vt-moi-soon {
  text-align: center;
  font-size: 12px;
  color: #94a3b8;
  font-style: italic;
}

.vt-moi-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: var(--vt-lh-normal);
  color: var(--vt-text-sub);
  text-align: center;
}

/* Responsive */
@media (max-width: 1100px) {
  .vt-moi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .vt-moi-card.featured {
    transform: none;
  }
  .vt-moi-card.featured:hover {
    transform: translateY(-5px);
  }
}

@media (max-width: 640px) {
  .vt-moi-section {
    padding: 22px 14px 18px;
    margin: 24px 0;
  }
  .vt-moi-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

/* ==========================================================================
   17. HUB DANH MỤC GÓI CƯỚC
   Dùng chung ngôn ngữ hình ảnh với trang chủ và trang chi tiết gói.
   ========================================================================== */
.vt-hub-page {
  margin-top: 0 !important;
  padding: 22px 0 48px;
  background: linear-gradient(180deg, #f8fafc 0, #ffffff 340px);
}

.vt-hub-container > .col {
  padding: 0 12px;
}

.vt-hub-breadcrumb {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--vt-text-sub);
}

.vt-hub-breadcrumb a {
  color: var(--vt-text-sub);
  text-decoration: none;
}

.vt-hub-breadcrumb a:hover,
.vt-hub-breadcrumb a:focus-visible {
  color: var(--vt-red);
  text-decoration: underline;
}

.vt-hub-breadcrumb .separator {
  margin: 0 7px;
  opacity: 0.55;
}

.vt-hub-breadcrumb .last {
  color: var(--vt-text-main);
  font-weight: var(--vt-fw-semibold);
}

.vt-hub-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 32px;
  border-radius: var(--vt-radius);
  background: linear-gradient(135deg, var(--vt-red) 0%, var(--vt-red-dark) 72%, #8b001d 100%);
  box-shadow: 0 12px 30px rgba(238, 0, 51, 0.18);
  color: #fff;
}

.vt-hub-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -120px;
  width: 330px;
  height: 330px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.18), rgba(255,255,255,0) 68%);
  pointer-events: none;
}

.vt-hub-eyebrow,
.vt-hub-section-kicker {
  display: inline-block;
  font-size: 11.5px;
  font-weight: var(--vt-fw-extrabold);
  letter-spacing: 0.75px;
  text-transform: uppercase;
}

.vt-hub-eyebrow {
  position: relative;
  z-index: 1;
  margin-bottom: 8px;
  padding: 4px 11px;
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 20px;
  background: rgba(0,0,0,.14);
  color: #ffe4e6;
}

.vt-hub-title {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0;
  padding: 0;
  background: transparent;
  color: #fff !important;
  font-size: clamp(25px, 3vw, 38px);
  font-weight: var(--vt-fw-black);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.vt-hub-subtitle {
  position: relative;
  z-index: 1;
  max-width: 790px;
  margin: 12px 0 0;
  color: #ffe4e6;
  font-size: 14.5px;
  line-height: 1.65;
}

.vt-hub-intro {
  margin: 24px 0 34px;
  padding: 24px 28px;
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  background: #fff;
  box-shadow: var(--vt-shadow);
}

/* Gỡ kiểu heading đỏ đặc của theme cũ trong nội dung hub. */
.vt-hub-intro h2,
.vt-hub-intro h3 {
  display: block !important;
  width: auto;
  padding: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: var(--vt-text-main) !important;
}

.vt-hub-intro h2 {
  margin: 28px 0 12px;
  padding-bottom: 9px !important;
  border-bottom: 3px solid var(--vt-red) !important;
  font-size: 21px !important;
  line-height: 1.35;
}

.vt-hub-intro h2:first-child {
  margin-top: 0;
}

.vt-hub-intro h3 {
  margin: 20px 0 8px;
  color: var(--vt-red-dark) !important;
  font-size: 17px !important;
  line-height: 1.4;
}

.vt-hub-intro #toc_container {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: none;
}

.vt-hub-intro table {
  border-radius: 10px;
  overflow: hidden;
}

.vt-hub-packages {
  margin-top: 8px;
}

.vt-hub-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 16px;
}

.vt-hub-section-kicker {
  color: var(--vt-red);
}

.vt-hub-section-head h2 {
  display: block !important;
  margin: 4px 0 0;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  color: var(--vt-text-main) !important;
  font-size: 25px !important;
  line-height: 1.3;
}

.vt-hub-section-head p {
  max-width: 470px;
  margin: 0;
  color: var(--vt-text-sub);
  font-size: 13.5px;
  text-align: right;
}

.vt-hub-package-browser {
  margin: 0;
}

.vt-hub-package-browser .vt-tab-panel {
  padding-top: 4px;
}

.vt-hub-cards-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
}

.vt-hub-card .vt-card-name-title {
  display: block !important;
  width: auto;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: #c6002b !important;
  font-size: 22px !important;
  line-height: 1.25;
}

.badge-stopped {
  background: #fff3cd;
  color: #8a5a00;
}

.vt-card.is-stopped {
  border-color: #e5e7eb;
  background: #f8fafc;
  box-shadow: none;
}

.vt-card.is-stopped:hover {
  transform: none;
  border-color: #d1d5db;
  box-shadow: 0 6px 16px rgba(15,23,42,.06);
}

.vt-card.is-stopped .vt-card-data-highlight {
  border-left-color: #94a3b8;
  background: #f1f5f9;
}

.vt-card.is-stopped .vt-data-primary,
.vt-card.is-stopped .vt-card-name-title {
  color: #64748b !important;
}

.vt-card-stopped-note {
  margin-top: auto;
  padding: 9px 10px;
  border: 1px solid #f3d48a;
  border-radius: var(--vt-radius-sm);
  background: #fff8e6;
  color: #8a5a00;
  font-size: 12px;
  font-weight: var(--vt-fw-bold);
  text-align: center;
}

.vt-hub-pagination {
  margin: 28px 0 0;
}

.vt-hub-pagination-list,
.vt-hub-pagination ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.vt-hub-pagination a,
.vt-hub-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--vt-border);
  border-radius: 9px;
  background: #fff;
  color: var(--vt-text-main);
  font-size: 13px;
  font-weight: var(--vt-fw-bold);
}

.vt-hub-pagination a:hover,
.vt-hub-pagination .current {
  border-color: var(--vt-red);
  background: var(--vt-red);
  color: #fff;
}

.vt-hub-empty {
  padding: 24px;
  border: 1px dashed var(--vt-border);
  border-radius: var(--vt-radius);
  background: #fff;
  text-align: center;
}

@media (max-width: 1024px) {
  .vt-hub-cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .vt-hub-page {
    padding: 14px 0 34px;
  }

  .vt-hub-container > .col {
    padding: 0 10px;
  }

  .vt-hub-hero {
    padding: 23px 20px;
  }

  .vt-hub-title {
    font-size: 25px;
  }

  .vt-hub-subtitle {
    font-size: 13.5px;
  }

  .vt-hub-intro {
    margin: 16px 0 26px;
    padding: 18px 15px;
  }

  .vt-hub-intro h2 {
    font-size: 18px !important;
  }

  .vt-hub-intro h3 {
    font-size: 16px !important;
  }

  .vt-hub-section-head {
    display: block;
  }

  .vt-hub-section-head h2 {
    font-size: 21px !important;
  }

  .vt-hub-section-head p {
    margin-top: 7px;
    text-align: left;
  }

  .vt-hub-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vt-hub-card .vt-card-name-title {
    font-size: 17px !important;
    padding: 0 !important;
  }

  .vt-hub-package-browser .vt-smart-filter-bar {
    align-items: stretch;
  }

  .vt-hub-package-browser .vt-live-search-mini {
    width: 100%;
  }
}

@media (max-width: 380px) {
  .vt-hub-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   11. HERO TOP 3 GÓI QUỐC DÂN & TABLE OF CONTENTS (TOC) STYLES 2026
   ========================================================================== */
.vt-hero-image-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.vt-hero-img-card {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
}

.vt-hero-banner-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 12px;
}

.vt-hero-top-pkgs {
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 12px 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.vt-top-pkgs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.vt-top-pkgs-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.vt-top-pkgs-header .vt-top-icon {
  font-size: 15px;
}

.vt-top-pkgs-title {
  font-size: 12px;
  font-weight: 800;
  color: #fef08a;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.vt-top-pkgs-sub {
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
}

.vt-top-pkgs-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.vt-top-pkg-row {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 8px 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  transition: all 0.2s ease;
}

.vt-top-pkg-row:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateX(2px);
}

.vt-top-pkg-row.is-highlight {
  background: linear-gradient(135deg, rgba(255,255,255,0.18) 0%, rgba(245,158,11,0.22) 100%);
  border: 1.5px solid #facc15;
  box-shadow: 0 2px 10px rgba(250, 204, 21, 0.2);
}

.vt-top-pkg-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.vt-top-pkg-meta-top {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.vt-top-pkg-badge {
  font-size: 8.5px;
  font-weight: 800;
  color: #fff;
  background: rgba(0, 0, 0, 0.45);
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.2px;
}

.vt-top-pkg-row.is-highlight .vt-top-pkg-badge {
  background: #facc15;
  color: #78350f;
}

.vt-top-pkg-code {
  font-size: 15.5px;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: 0.3px;
}

.vt-top-pkg-price {
  font-size: 13px;
  font-weight: 800;
  color: #fef08a;
  margin-left: 2px;
}

.vt-top-pkg-price small {
  font-size: 10px;
  font-weight: normal;
  opacity: 0.85;
}

.vt-top-pkg-data-line {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vt-top-pkg-data-line strong {
  color: #67e8f9;
  font-size: 12px;
}

.vt-btn-row-reg {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: #ee0033 !important;
  font-size: 11px;
  font-weight: 800;
  padding: 7px 14px;
  border-radius: 6px;
  text-decoration: none !important;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
}

.vt-btn-row-reg:hover {
  background: #fff1f3;
  transform: scale(1.04);
}

.vt-top-pkg-row.is-highlight .vt-btn-row-reg {
  background: linear-gradient(135deg, #facc15 0%, #f59e0b 100%);
  color: #78350f !important;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}

/* Table of Contents (TOC) */
.vt-toc-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-left: 4px solid var(--vt-red, #ee0033);
  border-radius: 12px;
  margin: 24px 0 32px 0;
  padding: 14px 18px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.04);
}

.vt-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  padding: 4px 0;
}

.vt-toc-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.vt-toc-icon {
  font-size: 18px;
}

.vt-toc-title {
  font-size: 14.5px;
  font-weight: 800;
  color: #1e293b;
  letter-spacing: 0.3px;
}

.vt-toc-toggle-btn {
  background: #e2e8f0;
  border: none;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 700;
  color: #475569;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.vt-toc-toggle-btn:hover {
  background: #cbd5e1;
  color: #0f172a;
}

.vt-toc-chevron {
  font-size: 9px;
}

.vt-toc-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
  margin: 14px 0 4px 0 !important;
  padding-left: 20px !important;
}

.vt-toc-list li {
  font-size: 13.5px;
  line-height: 1.5;
  color: #334155;
}

.vt-toc-list li a {
  color: #0f766e;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s;
}

.vt-toc-list li a:hover {
  color: var(--vt-red, #ee0033);
  text-decoration: underline;
}

@media (max-width: 900px) {
  .vt-hero-container {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }
}

@media (max-width: 768px) {
  .vt-top-pkg-row {
    grid-template-columns: 1fr auto;
    gap: 8px;
    padding: 7px 8px;
  }
  .vt-top-pkg-code {
    font-size: 14.5px;
  }
  .vt-top-pkg-price {
    font-size: 12px;
  }
  .vt-btn-row-reg {
    padding: 6px 10px;
    font-size: 10.5px;
  }
  .vt-hero-top-pkgs {
    margin-top: 10px;
    padding: 10px 12px;
  }
  .vt-toc-list {
    grid-template-columns: 1fr;
    gap: 9px;
  }
  .vt-toc-title {
    font-size: 13px;
  }
}

/* ==========================================================================
   BẢNG DỮ LIỆU & NÚT ĐĂNG KÝ TRONG BÀI VIẾT (POST_CONTENT)
   ========================================================================== */
.vt-seo-longform .vt-table-wrap,
.vt-table-wrap {
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch !important;
  margin: 20px 0 26px;
  border: 1px solid var(--vt-border, #e2e8f0);
  border-radius: var(--vt-radius, 14px);
  box-shadow: var(--vt-shadow, 0 4px 16px rgba(0, 0, 0, .06));
  background: #ffffff;
  width: 100% !important;
  max-width: 100% !important;
}

.vt-seo-longform table.vt-data-table,
table.vt-data-table {
  width: 100% !important;
  min-width: 580px;
  margin: 0 !important;
  border: 0 !important;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  font-size: 14px !important;
  line-height: 1.55 !important;
}

.vt-seo-longform table.vt-data-table th,
table.vt-data-table th {
  background: linear-gradient(90deg, var(--vt-red, #ee0033), #c9002b) !important;
  color: #ffffff !important;
  font-weight: 800 !important;
  font-size: 12.5px !important;
  letter-spacing: .5px;
  text-transform: uppercase;
  text-align: left;
  padding: 12px 14px !important;
  border: 0 !important;
  vertical-align: middle;
}

.vt-seo-longform table.vt-data-table td,
table.vt-data-table td {
  padding: 11px 14px !important;
  border: 0 !important;
  border-bottom: 1px solid var(--vt-border, #e2e8f0) !important;
  vertical-align: middle;
  color: var(--vt-text-main, #0f172a) !important;
}

.vt-seo-longform table.vt-data-table tbody tr:last-child td,
table.vt-data-table tbody tr:last-child td {
  border-bottom: 0 !important;
}

.vt-seo-longform table.vt-data-table tbody tr:nth-child(even) td,
table.vt-data-table tbody tr:nth-child(even) td {
  background: var(--vt-bg-gray, #f8fafc);
}

.vt-seo-longform table.vt-data-table tbody tr:hover td,
table.vt-data-table tbody tr:hover td {
  background: var(--vt-red-light, #fff1f3);
}

.vt-seo-longform table.vt-data-table tbody tr.vt-row-me td,
table.vt-data-table tbody tr.vt-row-me td {
  background: #fff5f7 !important;
  box-shadow: inset 3px 0 0 var(--vt-red, #ee0033);
}

.vt-seo-longform a.vt-td-btn,
a.vt-td-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  padding: 7px 15px !important;
  border-radius: 20px !important;
  background: var(--vt-red, #ee0033) !important;
  color: #ffffff !important;
  font-size: 12.5px !important;
  font-weight: 800 !important;
  white-space: nowrap !important;
  text-decoration: none !important;
  box-shadow: 0 2px 6px rgba(238, 0, 51, 0.25) !important;
  transition: all 0.2s ease !important;
}

.vt-seo-longform a.vt-td-btn:hover,
a.vt-td-btn:hover {
  background: var(--vt-red-dark, #b80026) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(238, 0, 51, 0.35) !important;
  color: #ffffff !important;
}

.vt-badge-stopped {
  display: inline-block;
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 6px;
  white-space: nowrap;
}

.vt-badge-hot {
  background: #ee0033;
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  margin-left: 4px;
  display: inline-block;
  vertical-align: middle;
}

.vt-scroll-hint {
  display: block;
  font-size: 12px;
  color: var(--vt-text-sub);
  margin: 12px 0 6px;
  font-style: italic;
}

.vt-table-wrap::-webkit-scrollbar {
  height: 6px;
}
.vt-table-wrap::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 4px;
}
.vt-table-wrap::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
.vt-table-wrap::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Callout Box - Cú pháp SMS chính thống */
.vt-syntax-box {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border: 1.5px solid #fed7aa;
  border-radius: var(--vt-radius, 14px);
  padding: 18px 22px;
  margin: 20px 0 26px;
  position: relative;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.08);
}
.vt-syntax-box-title {
  font-size: 15px;
  font-weight: 800;
  color: #c2410c;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.vt-syntax-display {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #ffffff;
  border: 1.5px dashed #f97316;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
}
.vt-syntax-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--vt-red, #ee0033);
  letter-spacing: 0.5px;
  font-size: 17px;
}
.vt-syntax-explain {
  font-size: 13.5px;
  color: #475569;
  margin-top: 10px;
  line-height: 1.5;
}

/* Callout Box - Ghi chú thông tin & Cảnh báo */
.vt-note-info {
  background: #f0f9ff;
  border-left: 4px solid #0284c7;
  border-radius: 0 12px 12px 0;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.6;
  color: #0f172a;
}
.vt-note-warn {
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  border-radius: 0 12px 12px 0;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.6;
  color: #78350f;
}
.vt-note-warn strong,
.vt-note-info strong {
  color: #0f172a;
}

/* Lưới Cam Kết Dịch Vụ Điểm Bán (Mục 8) */
.vt-commit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 22px 0 28px;
}
@media (max-width: 768px) {
  .vt-commit-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}
@media (max-width: 480px) {
  .vt-commit-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
.vt-commit-item,
.vt-trust-item {
  background: #ffffff;
  border: 1px solid var(--vt-border, #e2e8f0);
  border-radius: 12px;
  padding: 16px 14px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.vt-commit-item:hover,
.vt-trust-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}
.vt-commit-icon,
.vt-trust-icon {
  font-size: 28px;
  margin-bottom: 8px;
  display: block;
}
.vt-commit-title,
.vt-trust-title {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--vt-text-main, #0f172a);
  margin-bottom: 4px;
}
.vt-commit-desc,
.vt-trust-desc {
  font-size: 12px;
  color: var(--vt-text-sub, #475569);
  line-height: 1.4;
  word-break: break-word;
}