/* ===========================================================================
   VNPT TP.HỒ CHÍ MINH — TRANG GIỚI THIỆU WEBSITE
   Design System: VNPT MODERN TECH BLUE 2026
   Scope: .vnpt-about-page
   =========================================================================== */

.vnpt-about-page {
  background-color: var(--vnpt-bg, #ffffff);
  color: var(--vnpt-text, #0f172a);
  font-family: var(--font-body, "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  -webkit-font-smoothing: antialiased;
}

/* 1. CONTAINER SYSTEM: 1400px (Đồng bộ với tin tức và chi tiết bài viết) */
.vnpt-about-page .vnpt-about-container {
  width: min(calc(100% - 48px), 1400px);
  max-width: 1400px;
  margin-inline: auto;
  padding: 0;
}

@media (max-width: 767.98px) {
  .vnpt-about-page .vnpt-about-container {
    width: calc(100% - 32px);
  }
}

/* 2. HERO SECTION */
.vnpt-about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 2.5vw, 2.25rem) 0 clamp(4rem, 6vw, 5.5rem);
  background:
    radial-gradient(circle at 92% 16%, rgba(34, 184, 255, 0.16), transparent 24rem),
    radial-gradient(circle at 10% 84%, rgba(0, 104, 255, 0.08), transparent 26rem),
    var(--vnpt-gradient-hero, linear-gradient(135deg, #ffffff 0%, #f4f8ff 50%, #eaf4ff 100%));
  border-bottom: 1px solid var(--vnpt-border, #dce8f7);
}

.vnpt-about-page .vnpt-about-breadcrumb {
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
}

.vnpt-about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.vnpt-about-hero-copy {
  max-width: 780px;
}

.vnpt-about-badge-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2, 8px);
  margin-bottom: var(--space-4, 16px);
}

.vnpt-about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill, 999px);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(0, 104, 255, 0.2);
  color: var(--vnpt-primary-dark, #0052cc);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 104, 255, 0.08);
}

.vnpt-about-eyebrow i {
  color: var(--vnpt-primary, #0068ff);
  font-size: 15px;
}

.vnpt-about-tag-city {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-pill, 999px);
  background: var(--vnpt-bg-section-blue, #eaf4ff);
  color: var(--vnpt-navy, #082e6b);
  font-size: 12.5px;
  font-weight: 700;
}

.vnpt-about-hero h1 {
  margin-bottom: var(--space-4, 16px);
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: clamp(2.4rem, 4.2vw, 3.5rem);
  font-weight: 850;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.vnpt-about-hero h1 .highlight {
  display: inline-block;
  background: linear-gradient(135deg, #0068ff 0%, #0052cc 60%, #082e6b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vnpt-about-lead {
  margin-bottom: var(--space-3, 12px);
  color: var(--vnpt-navy, #082e6b);
  font-size: clamp(1.05rem, 1.35vw, 1.2rem);
  font-weight: 550;
  line-height: 1.68;
}

.vnpt-about-desc {
  margin-bottom: var(--space-6, 24px);
  color: var(--vnpt-text-secondary, #334155);
  font-size: 15.5px;
  line-height: 1.68;
}

.vnpt-about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3, 12px);
  margin-bottom: var(--space-8, 32px);
}

.vnpt-about-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  border-radius: var(--radius-md, 12px);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.vnpt-about-button-primary {
  color: #ffffff !important;
  background: var(--vnpt-gradient-primary, linear-gradient(135deg, #168bff 0%, #0068ff 50%, #0047b9 100%));
  box-shadow: 0 4px 16px rgba(0, 104, 255, 0.28);
}

.vnpt-about-button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 104, 255, 0.36);
}

.vnpt-about-button-secondary {
  color: var(--vnpt-primary-dark, #0052cc) !important;
  background: #ffffff;
  border-color: rgba(0, 104, 255, 0.32);
  box-shadow: 0 2px 10px rgba(0, 68, 160, 0.05);
}

.vnpt-about-button-secondary:hover {
  background: var(--vnpt-bg-light-blue, #f1f6ff);
  border-color: var(--vnpt-primary, #0068ff);
  transform: translateY(-2px);
}

.vnpt-about-trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, 2vw, 20px);
  padding-top: var(--space-5, 20px);
  border-top: 1px solid rgba(0, 104, 255, 0.12);
}

.vnpt-trust-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 13.5px;
  font-weight: 650;
}

.vnpt-trust-item i {
  color: var(--vnpt-primary, #0068ff);
  font-size: 16px;
}

/* 3. THẺ ĐỊNH DANH NHÂN SỰ SỐ (DIGITAL IDENTITY CARD) */
.vnpt-about-identity-card {
  position: relative;
  border-radius: var(--radius-2xl, 24px);
  background: #ffffff;
  border: 1px solid rgba(0, 104, 255, 0.18);
  box-shadow: 0 16px 44px rgba(0, 68, 160, 0.1);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.vnpt-about-identity-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--vnpt-gradient-primary, linear-gradient(135deg, #168bff 0%, #0068ff 50%, #0047b9 100%));
}

.vnpt-identity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--vnpt-border, #dce8f7);
  background: var(--vnpt-bg-soft, #f7faff);
}

.vnpt-identity-org {
  display: flex;
  align-items: center;
  gap: 8px;
}

.vnpt-identity-org-pill {
  padding: 4px 10px;
  border-radius: var(--radius-sm, 8px);
  background: var(--vnpt-primary, #0068ff);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.vnpt-identity-role {
  color: var(--vnpt-text-secondary, #334155);
  font-size: 12.5px;
  font-weight: 700;
}

.vnpt-identity-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill, 999px);
  background: #dcfce7;
  color: #166534;
  font-size: 12px;
  font-weight: 750;
}

.vnpt-identity-status i {
  color: var(--vnpt-success, #16a34a);
  font-size: 13px;
}

.vnpt-identity-body {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px;
}

.vnpt-identity-avatar {
  display: grid;
  place-items: center;
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl, 20px);
  background: linear-gradient(135deg, #082e6b 0%, #0052cc 100%);
  color: #ffffff;
  font-size: 1.85rem;
  box-shadow: 0 8px 20px rgba(8, 46, 107, 0.25);
}

.vnpt-identity-info {
  flex: 1;
  min-width: 0;
}

.vnpt-identity-kicker {
  display: block;
  margin-bottom: 2px;
  color: var(--vnpt-primary, #0068ff);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.vnpt-identity-name {
  margin: 0 0 4px;
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.45rem;
  font-weight: 850;
  line-height: 1.25;
}

.vnpt-identity-title {
  margin: 0;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 13px;
  line-height: 1.5;
}

.vnpt-identity-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 0 24px 20px;
}

.vnpt-identity-field {
  padding: 12px 14px;
  border-radius: var(--radius-md, 12px);
  background: var(--vnpt-bg-light-blue, #f1f6ff);
  border: 1px solid rgba(0, 104, 255, 0.08);
}

.vnpt-field-full {
  grid-column: 1 / -1;
}

.vnpt-field-label {
  display: block;
  margin-bottom: 3px;
  color: var(--vnpt-text-muted, #64748b);
  font-size: 11.5px;
  font-weight: 700;
}

.vnpt-field-value {
  display: block;
  color: var(--vnpt-dark-navy, #071f46);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.45;
}

.vnpt-id-highlight {
  color: var(--vnpt-primary-dark, #0052cc);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 15px;
  font-weight: 850;
  font-variant-numeric: tabular-nums lining-nums;
  letter-spacing: 0.04em;
}

.vnpt-identity-footer {
  padding: 16px 24px;
  background: #f0fdf4;
  border-top: 1px solid rgba(22, 163, 74, 0.2);
}

.vnpt-identity-notice {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
  color: #166534;
  font-size: 12px;
  font-weight: 750;
}

.vnpt-identity-notice i {
  color: var(--vnpt-success, #16a34a);
  font-size: 14px;
}

.vnpt-identity-proof-btn {
  display: flex;
  width: 100%;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-radius: var(--radius-md, 12px);
  border: 1px solid rgba(22, 163, 74, 0.35);
  background: #ffffff;
  color: #166534;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
  transition: all 0.2s ease;
}

.vnpt-identity-proof-btn:hover {
  background: #dcfce7;
  border-color: var(--vnpt-success, #16a34a);
}

/* 4. SECTION RHYTHM & HEADINGS */
.vnpt-about-section {
  padding: clamp(4rem, 6.5vw, 6rem) 0;
}

.vnpt-about-section-soft {
  background: var(--vnpt-bg-soft, #f7faff);
  border-block: 1px solid var(--vnpt-border, #dce8f7);
}

.vnpt-about-section-heading {
  max-width: 820px;
  margin: 0 auto clamp(2.5rem, 4.5vw, 3.75rem);
  text-align: center;
}

.vnpt-about-section-kicker {
  display: inline-block;
  margin-bottom: var(--space-2, 8px);
  color: var(--vnpt-primary-dark, #0052cc);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.vnpt-about-section-heading h2 {
  margin-bottom: var(--space-3, 12px);
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  font-weight: 850;
  line-height: 1.22;
}

.vnpt-about-section-heading p {
  margin: 0 auto;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 16px;
  line-height: 1.68;
}

/* 5. WORKFLOW: 4 BƯỚC TIẾP NHẬN */
.vnpt-workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4, 16px);
  position: relative;
}

.vnpt-workflow-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  border-radius: var(--radius-xl, 20px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 8px 24px rgba(0, 68, 160, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.vnpt-workflow-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 104, 255, 0.35);
  box-shadow: 0 16px 36px rgba(0, 89, 210, 0.12);
}

.vnpt-workflow-step-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(0, 104, 255, 0.12);
  letter-spacing: -0.04em;
  pointer-events: none;
}

.vnpt-workflow-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-4, 16px);
  border-radius: var(--radius-lg, 16px);
  background: var(--vnpt-bg-section-blue, #eaf4ff);
  color: var(--vnpt-primary, #0068ff);
  font-size: 1.35rem;
  transition: all 0.2s ease;
}

.vnpt-workflow-card:hover .vnpt-workflow-icon {
  background: var(--vnpt-gradient-primary, linear-gradient(135deg, #168bff 0%, #0068ff 50%, #0047b9 100%));
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(0, 104, 255, 0.24);
}

.vnpt-workflow-card h3 {
  margin-bottom: var(--space-2, 8px);
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.35;
}

.vnpt-workflow-card p {
  margin: 0;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 13.5px;
  line-height: 1.62;
}

/* 6. HỆ SINH THÁI DỊCH VỤ TƯ VẤN (ECOSYSTEM) */
.vnpt-ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6, 24px);
}

.vnpt-ecosystem-card {
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 3.5vw, 40px);
  border-radius: var(--radius-2xl, 24px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 10px 30px rgba(0, 68, 160, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.vnpt-ecosystem-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(0, 89, 210, 0.12);
}

.vnpt-ecosystem-badge {
  display: inline-block;
  margin-bottom: var(--space-3, 12px);
  padding: 5px 12px;
  border-radius: var(--radius-pill, 999px);
  background: var(--vnpt-bg-section-blue, #eaf4ff);
  color: var(--vnpt-primary-dark, #0052cc);
  font-size: 12.5px;
  font-weight: 750;
}

.vnpt-badge-enterprise {
  background: #e0f2fe;
  color: #0369a1;
}

.vnpt-ecosystem-card-header h3 {
  margin-bottom: var(--space-2, 8px);
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.5rem;
  font-weight: 850;
  line-height: 1.3;
}

.vnpt-ecosystem-card-header p {
  margin-bottom: var(--space-5, 20px);
  color: var(--vnpt-text-secondary, #334155);
  font-size: 14.5px;
  line-height: 1.6;
}

.vnpt-ecosystem-list {
  display: grid;
  gap: var(--space-4, 16px);
  margin: 0 0 var(--space-6, 24px);
  padding: 0;
  list-style: none;
  flex: 1;
}

.vnpt-ecosystem-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.vnpt-ecosystem-list li i {
  display: grid;
  place-items: center;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md, 12px);
  background: var(--vnpt-bg-light-blue, #f1f6ff);
  color: var(--vnpt-primary, #0068ff);
  font-size: 1.15rem;
}

.vnpt-ecosystem-list li strong {
  display: block;
  margin-bottom: 2px;
  color: var(--vnpt-dark-navy, #071f46);
  font-size: 14.5px;
  font-weight: 750;
}

.vnpt-ecosystem-list li span {
  display: block;
  color: var(--vnpt-text-muted, #64748b);
  font-size: 13px;
  line-height: 1.5;
}

.vnpt-ecosystem-footer {
  padding-top: var(--space-4, 16px);
  border-top: 1px solid var(--vnpt-border, #dce8f7);
}

.vnpt-ecosystem-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--vnpt-primary, #0068ff);
  font-size: 14.5px;
  font-weight: 750;
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}

.vnpt-ecosystem-link:hover {
  gap: 12px;
  color: var(--vnpt-primary-dark, #0052cc);
}

/* 7. RANH GIỚI HỖ TRỢ (SUPPORT BOUNDARIES) */
.vnpt-scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6, 24px);
}

.vnpt-scope-card {
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 3.5vw, 36px);
  border-radius: var(--radius-2xl, 24px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 10px 30px rgba(0, 68, 160, 0.06);
}

.vnpt-scope-card-primary {
  border-top: 4px solid var(--vnpt-primary, #0068ff);
}

.vnpt-scope-card-tech {
  border-top: 4px solid #64748b;
  background: #fdfefe;
}

.vnpt-scope-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: var(--space-5, 20px);
}

.vnpt-scope-icon {
  display: grid;
  place-items: center;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md, 12px);
  font-size: 1.35rem;
}

.vnpt-icon-primary {
  background: var(--vnpt-bg-section-blue, #eaf4ff);
  color: var(--vnpt-primary, #0068ff);
}

.vnpt-icon-tech {
  background: #f1f5f9;
  color: #475569;
}

.vnpt-scope-subtitle {
  display: block;
  margin-bottom: 2px;
  color: var(--vnpt-text-muted, #64748b);
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.vnpt-scope-head h3 {
  margin: 0;
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.35rem;
  font-weight: 850;
  line-height: 1.3;
}

.vnpt-scope-list {
  display: grid;
  gap: var(--space-3, 12px);
  margin: 0 0 var(--space-6, 24px);
  padding: 0;
  list-style: none;
  flex: 1;
}

.vnpt-scope-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 14.5px;
  line-height: 1.55;
}

.vnpt-scope-card-primary .vnpt-scope-list li i {
  color: var(--vnpt-success, #16a34a);
  font-size: 16px;
  flex: 0 0 auto;
  margin-top: 2px;
}

.vnpt-scope-card-tech .vnpt-scope-list li i {
  color: #64748b;
  font-size: 15px;
  flex: 0 0 auto;
  margin-top: 2px;
}

.vnpt-scope-action {
  padding: 16px 20px;
  border-radius: var(--radius-lg, 16px);
  background: var(--vnpt-bg-light-blue, #f1f6ff);
  border: 1px solid rgba(0, 104, 255, 0.12);
}

.vnpt-scope-action-label {
  display: block;
  margin-bottom: 4px;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 12.5px;
  font-weight: 700;
}

.vnpt-scope-phone-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--vnpt-primary, #0068ff);
  font-size: 1.35rem;
  text-decoration: none;
}

.vnpt-scope-phone-link strong {
  font-family: var(--font-display, "Manrope", sans-serif);
  font-weight: 850;
  letter-spacing: 0.02em;
}

.vnpt-scope-helplines {
  padding: 18px 20px;
  border-radius: var(--radius-lg, 16px);
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.vnpt-helpline-title {
  display: block;
  margin-bottom: 10px;
  color: #334155;
  font-size: 12.5px;
  font-weight: 750;
}

.vnpt-helpline-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.vnpt-helpline-tag {
  display: block;
  margin-bottom: 4px;
  color: var(--vnpt-text-muted, #64748b);
  font-size: 11.5px;
  font-weight: 650;
}

.vnpt-helpline-call {
  display: flex;
  flex-direction: column;
  padding: 8px 12px;
  border-radius: var(--radius-md, 12px);
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: #0f172a;
  text-decoration: none;
  transition: all 0.15s ease;
}

.vnpt-helpline-call:hover {
  border-color: var(--vnpt-primary, #0068ff);
  color: var(--vnpt-primary, #0068ff);
  box-shadow: 0 4px 12px rgba(0, 68, 160, 0.08);
}

.vnpt-helpline-call strong {
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 14px;
  font-weight: 800;
}

.vnpt-helpline-call small {
  color: var(--vnpt-success, #16a34a);
  font-size: 11px;
  font-weight: 700;
}

/* 8. MINH BẠCH DOANH NGHIỆP / CỔNG TẬP ĐOÀN (CORPORATE BOX) */
.vnpt-about-corporate-box {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(2rem, 4.5vw, 4rem);
  align-items: center;
  padding: clamp(2rem, 4.5vw, 3.5rem);
  border-radius: var(--radius-hero, 32px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 16px 40px rgba(0, 68, 160, 0.08);
}

.vnpt-corporate-content h2 {
  margin-bottom: var(--space-3, 12px);
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: clamp(1.8rem, 2.8vw, 2.25rem);
  font-weight: 850;
  line-height: 1.25;
}

.vnpt-corporate-content p {
  margin-bottom: var(--space-3, 12px);
  color: var(--vnpt-text-secondary, #334155);
  font-size: 15px;
  line-height: 1.68;
}

.vnpt-corporate-action {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2rem);
  border-radius: var(--radius-2xl, 24px);
  background: linear-gradient(135deg, #082e6b 0%, #0052cc 100%);
  color: #ffffff;
  box-shadow: 0 14px 32px rgba(8, 46, 107, 0.22);
}

.vnpt-corporate-badge {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--space-4, 16px);
}

.vnpt-corporate-badge i {
  font-size: 1.75rem;
  color: var(--vnpt-cyan, #22b8ff);
  margin-bottom: 6px;
}

.vnpt-corporate-badge span {
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  font-weight: 600;
}

.vnpt-corporate-badge strong {
  color: #ffffff;
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.6rem;
  font-weight: 850;
  letter-spacing: -0.01em;
}

.vnpt-corporate-action .vnpt-about-button {
  background: #ffffff;
  color: var(--vnpt-primary-dark, #0052cc) !important;
  font-weight: 750;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.vnpt-corporate-action .vnpt-about-button:hover {
  background: var(--vnpt-bg-light-blue, #f1f6ff);
  transform: translateY(-2px);
}

/* 9. FAQ ACCORDION */
.vnpt-about-faq-list {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.vnpt-about-faq-item {
  border-radius: var(--radius-xl, 20px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 4px 14px rgba(0, 68, 160, 0.04);
  overflow: hidden;
  transition: all 0.2s ease;
}

.vnpt-about-faq-item[open] {
  border-color: rgba(0, 104, 255, 0.35);
  box-shadow: 0 8px 24px rgba(0, 104, 255, 0.08);
}

.vnpt-faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 16px;
  font-weight: 800;
  color: var(--vnpt-dark-navy, #071f46);
  list-style: none;
  transition: color 0.15s ease;
}

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

.vnpt-faq-question i {
  color: var(--vnpt-primary, #0068ff);
  font-size: 16px;
  transition: transform 0.25s ease;
  flex: 0 0 auto;
}

.vnpt-about-faq-item[open] .vnpt-faq-question i {
  transform: rotate(180deg);
}

.vnpt-faq-answer {
  padding: 0 24px 22px;
  color: var(--vnpt-text-secondary, #334155);
  font-size: 15px;
  line-height: 1.68;
  border-top: 1px solid rgba(0, 104, 255, 0.08);
  margin-top: -4px;
  padding-top: 16px;
}

.vnpt-faq-answer p {
  margin: 0;
}

/* 10. LIÊN HỆ TƯ VẤN (CONTACT ACTION CARDS) */
.vnpt-about-section-contact {
  background: var(--vnpt-bg-soft, #f7faff);
  border-top: 1px solid var(--vnpt-border, #dce8f7);
}

.vnpt-about-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6, 24px);
}

.vnpt-about-contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  border-radius: var(--radius-2xl, 24px);
  background: #ffffff;
  border: 1px solid var(--vnpt-border, #dce8f7);
  box-shadow: 0 8px 24px rgba(0, 68, 160, 0.05);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.vnpt-about-contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 104, 255, 0.35);
  box-shadow: 0 18px 40px rgba(0, 89, 210, 0.12);
}

.vnpt-about-contact-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-4, 16px);
  border-radius: var(--radius-lg, 16px);
  font-size: 1.35rem;
}

.vnpt-contact-icon-phone {
  background: #fee2e2;
  color: #dc2626;
}

.vnpt-contact-icon-zalo {
  background: #e0f2fe;
  color: #0284c7;
}

.vnpt-contact-icon-mail {
  background: var(--vnpt-bg-section-blue, #eaf4ff);
  color: var(--vnpt-primary, #0068ff);
}

.vnpt-contact-label {
  display: block;
  margin-bottom: 4px;
  color: var(--vnpt-text-muted, #64748b);
  font-size: 12.5px;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.vnpt-contact-value {
  display: block;
  margin-bottom: 6px;
  color: var(--vnpt-dark-navy, #071f46);
  font-family: var(--font-display, "Manrope", sans-serif);
  font-size: 1.4rem;
  font-weight: 850;
  line-height: 1.25;
}

.vnpt-contact-desc {
  display: block;
  margin-bottom: var(--space-4, 16px);
  color: var(--vnpt-text-secondary, #334155);
  font-size: 13.5px;
  line-height: 1.5;
  flex: 1;
}

.vnpt-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--vnpt-primary, #0068ff);
  font-size: 13.5px;
  font-weight: 750;
  transition: gap 0.15s ease;
}

.vnpt-about-contact-card:hover .vnpt-contact-btn {
  gap: 10px;
  color: var(--vnpt-primary-dark, #0052cc);
}

/* 11. RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .vnpt-workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .vnpt-about-hero-grid,
  .vnpt-about-corporate-box {
    grid-template-columns: 1fr;
    gap: var(--space-8, 32px);
  }
  .vnpt-about-hero-copy {
    max-width: none;
  }
}

@media (max-width: 860px) {
  .vnpt-ecosystem-grid,
  .vnpt-scope-grid,
  .vnpt-about-contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .vnpt-workflow-grid {
    grid-template-columns: 1fr;
  }
  .vnpt-identity-grid,
  .vnpt-helpline-row {
    grid-template-columns: 1fr;
  }
  .vnpt-about-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .vnpt-about-button {
    width: 100%;
  }
}