/* Trang chủ — Sprint 2 */

/* ── Shared gradient text helpers ── */
.h2-grad-navy {
  font-family: var(--font-head);
  font-size: var(--text-h2);
  line-height: var(--lh-h2);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  background: var(--grad-navy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.h2-grad-white {
  font-family: var(--font-head);
  font-size: var(--text-h2);
  line-height: var(--lh-h2);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  background: linear-gradient(129deg, var(--color-white-80) 0%, var(--color-white-90) 40%, var(--color-white-60) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grad-text-orange {
  background: linear-gradient(1deg, var(--color-orange) 0%, var(--color-lightorange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grad-text-white {
  background: linear-gradient(118deg, var(--color-white-80) 0%, var(--color-white) 35%, var(--color-white) 65%, var(--color-white-80) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grad-text-white-glow {
  background: linear-gradient(128deg, var(--color-white-80) 0%, var(--color-white-90) 40%, var(--color-white-60) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: var(--glow-blue);
}

.glass-card {
  backdrop-filter: blur(3px);
  background: linear-gradient(179deg, var(--color-white-4) 1%, var(--color-white-1) 89%);
  border: 1px solid var(--color-white-12);
  border-radius: var(--radius-sm);
}

.btn-link-white {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-nav);
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.btn-link-white:hover { opacity: 0.7; }

.btn-link-navy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-nav);
  color: var(--color-darkblue);
  text-decoration: none;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.btn-link-navy:hover { opacity: 0.7; }

/* ── HERO ── */
.section-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--grad-navy);
}

.section-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.section-hero__video,
.section-hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 20, 75, 0.60);
}

.section-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 var(--pad-x);
  padding-top: calc(var(--navbar-h) + var(--space-20));
  padding-bottom: var(--space-20);
  max-width: var(--max-width);
  width: 100%;
}

.section-hero__badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  border-radius: 100px;
  background: var(--color-white-12);
  border: 1px solid var(--color-white-20);
  backdrop-filter: blur(3px);
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-white-80);
  margin-bottom: var(--space-8);
}

.section-hero__heading {
  font-family: var(--font-head);
  font-size: var(--text-h1);
  line-height: var(--lh-h1);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  color: var(--color-white);
  text-shadow: var(--glow-blue);
  margin-bottom: var(--space-6);
  max-width: 860px;
}

.section-hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-subtitle);
  line-height: var(--lh-subtitle);
  font-weight: var(--fw-regular);
  color: var(--color-white-60);
  margin-bottom: var(--space-16);
  max-width: 560px;
}

.section-hero__stats {
  display: flex;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.section-hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.section-hero__stat-number {
  font-family: var(--font-head);
  font-size: var(--text-4xl);
  line-height: 1;
  font-weight: var(--fw-bold);
  background: var(--grad-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-hero__stat-label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: var(--lh-label);
  color: var(--color-white-60);
}

.section-hero__ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

.section-hero__video-toggle {
  position: absolute;
  bottom: var(--space-8);
  right: var(--pad-x);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-white-20);
  background: var(--color-white-12);
  backdrop-filter: blur(3px);
  color: var(--color-white-80);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.section-hero__video-toggle:hover { background: var(--color-white-20); }
.section-hero__icon-play { display: none; }
.section-hero__video-toggle[aria-pressed="true"] .section-hero__icon-pause { display: none; }
.section-hero__video-toggle[aria-pressed="true"] .section-hero__icon-play { display: block; }

/* ── ĐỐI TÁC ── */
.section-doi-tac {
  padding: var(--space-10) 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
  overflow: hidden;
}

.section-doi-tac__inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.section-doi-tac__label {
  flex-shrink: 0;
  padding: 0 var(--pad-x);
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-400);
  white-space: nowrap;
}

.section-doi-tac__track-wrap {
  flex: 1;
  overflow: hidden;
}

.section-doi-tac__track {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  animation: marquee 30s linear infinite;
  width: max-content;
}

@media (prefers-reduced-motion: reduce) {
  .section-doi-tac__track { animation: none; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.section-doi-tac__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.section-doi-tac__logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.5;
  transition: filter var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}

.section-doi-tac__logo img:hover {
  filter: grayscale(0);
  opacity: 1;
}

/* ── BRAND GROWTH FRAMEWORK ── */
.section-brand-growth {
  background: var(--grad-navy);
  padding: var(--section-margin-lg) var(--pad-x);
}

.section-brand-growth__inner {
  display: flex;
  gap: var(--col-gap);
  align-items: flex-start;
  max-width: var(--content-width);
  margin: 0 auto;
}

.section-brand-growth__left {
  flex-shrink: 0;
  width: 410px;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  padding-top: var(--space-10);
}

.section-brand-growth__heading-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section-brand-growth__eyebrow {
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-lightorange);
}

.section-brand-growth__heading {
  text-align: left;
}

.section-brand-growth__desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-60);
}

.section-brand-growth__right {
  flex: 1;
  min-width: 0;
}

.section-brand-growth__phases {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.section-brand-growth__phase {
  border-bottom: 1px solid var(--color-white-12);
  cursor: pointer;
}

.section-brand-growth__phase-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  user-select: none;
}

.section-brand-growth__phase-number {
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-lightorange);
  flex-shrink: 0;
  width: 28px;
}

.section-brand-growth__phase-title {
  flex: 1;
  font-family: var(--font-head);
  font-size: var(--text-h4);
  line-height: var(--lh-h4);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  background: linear-gradient(128deg, var(--color-white-80) 0%, var(--color-white-90) 40%, var(--color-white-60) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-brand-growth__phase-arrow {
  color: var(--color-white-40);
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-out);
}

.section-brand-growth__phase.is-active .section-brand-growth__phase-arrow {
  transform: rotate(180deg);
  color: var(--color-lightorange);
}

.section-brand-growth__phase-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}

.section-brand-growth__phase.is-active .section-brand-growth__phase-body {
  max-height: 200px;
}

.section-brand-growth__phase-desc {
  padding: 0 0 var(--space-5) calc(28px + var(--space-4));
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-60);
}

/* ── GIẢI PHÁP TỔNG THỂ ── */
.section-giai-phap {
  background: var(--color-whiteblue);
  padding: var(--section-margin) var(--pad-x);
}

.section-giai-phap__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--col-gap);
  margin-bottom: var(--section-gap-lg);
}

.section-giai-phap__heading-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 560px;
}

.section-giai-phap__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-black-80);
}

.btn--link-dark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  font-family: var(--font-head);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--color-darkblue);
  text-decoration: none;
  white-space: nowrap;
}

.section-giai-phap__slider-wrap {
  position: relative;
}

.section-giai-phap__slider {
  display: flex;
  gap: var(--col-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: var(--space-2);
}

.section-giai-phap__slider::-webkit-scrollbar { display: none; }

.section-giai-phap__card {
  flex-shrink: 0;
  width: 320px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  background: var(--grad-navy);
  border: 1px solid var(--color-white-12);
  transition: transform var(--dur-base) var(--ease-out);
}

.section-giai-phap__card:hover {
  transform: translateY(-4px);
}

.section-giai-phap__card-icon {
  width: 40px;
  height: 40px;
}

.section-giai-phap__card-title {
  font-family: var(--font-head);
  font-size: var(--text-h4);
  line-height: var(--lh-h4);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  background: linear-gradient(128deg, var(--color-white-80) 0%, var(--color-white-90) 40%, var(--color-white-60) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: var(--glow-blue);
}

.section-giai-phap__card-desc {
  flex: 1;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-60);
}

.section-giai-phap__card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-head);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--color-white-80);
  text-decoration: none;
}

.section-giai-phap__nav {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-6);
}

.section-giai-phap__nav-btn,
.section-nghien-cuu__nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-darkblue-20);
  background: var(--color-white);
  color: var(--color-darkblue);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
  box-shadow: var(--shadow-btn-sm);
}

.section-giai-phap__nav-btn:hover,
.section-nghien-cuu__nav-btn:hover {
  background: var(--color-darkblue);
  color: var(--color-white);
  border-color: transparent;
}

.section-giai-phap__nav-btn:disabled,
.section-nghien-cuu__nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ── GÓC NHÌN CHIẾN LƯỢC ── */
.section-goc-nhin {
  display: flex;
  gap: 0;
  background: var(--color-whiteblue);
  padding-top: var(--section-margin);
  overflow: hidden;
}

.section-goc-nhin__left {
  flex-shrink: 0;
  width: 410px;
  padding: var(--space-10) var(--pad-x) var(--section-margin) var(--pad-x);
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.section-goc-nhin__heading-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section-goc-nhin__desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-black-80);
}

.section-goc-nhin__right {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--col-gap);
  padding: var(--space-10) var(--pad-x) var(--section-margin) var(--space-10);
  border-left: 1px solid var(--color-white);
  backdrop-filter: blur(3px);
  background: linear-gradient(90deg, var(--color-white-80) 0%, var(--color-white-90) 50%, var(--color-white-80) 100%);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  box-shadow: var(--shadow-nav);
}

.section-goc-nhin__card {
  display: flex;
  gap: var(--col-gap);
  align-items: flex-start;
}

.section-goc-nhin__card-image {
  flex-shrink: 0;
  width: 260px;
  aspect-ratio: 520 / 292;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: block;
}

.section-goc-nhin__thumbnail,
.section-nghien-cuu__thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--dur-base) var(--ease-out);
}

.section-goc-nhin__card-image:hover .section-goc-nhin__thumbnail {
  transform: scale(1.03);
}

.section-goc-nhin__thumbnail-placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-gray-100);
}

.section-goc-nhin__card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
  justify-content: space-between;
  align-self: stretch;
}

.section-goc-nhin__card-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.section-goc-nhin__card-title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: var(--lh-para-lg);
  font-weight: var(--fw-medium);
  color: var(--color-black);
}

.section-goc-nhin__card-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

.section-goc-nhin__card-title a:hover { color: var(--color-darkblue); }

.section-goc-nhin__card-excerpt {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-black-80);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── NGHIÊN CỨU MỚI NHẤT ── */
.section-nghien-cuu {
  background: var(--grad-navy);
  padding: var(--section-margin-lg) var(--pad-x);
}

.section-nghien-cuu__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--col-gap);
  margin-bottom: var(--section-gap-lg);
}

.section-nghien-cuu__heading-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section-nghien-cuu__eyebrow {
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-lightorange);
}

.section-nghien-cuu__slider-wrap {
  position: relative;
}

.section-nghien-cuu__slider {
  display: flex;
  gap: var(--col-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: var(--space-2);
}

.section-nghien-cuu__slider::-webkit-scrollbar { display: none; }

.section-nghien-cuu__card {
  flex-shrink: 0;
  width: 360px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-white-4);
  border: 1px solid var(--color-white-12);
}

.section-nghien-cuu__card-image {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.section-nghien-cuu__thumbnail-placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-white-12);
}

.section-nghien-cuu__card-content {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section-nghien-cuu__card-cat {
  font-family: var(--font-head);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-lightorange);
}

.section-nghien-cuu__card-title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: var(--lh-para-lg);
  font-weight: var(--fw-medium);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.section-nghien-cuu__card-title a {
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.section-nghien-cuu__card-title a:hover { opacity: 0.8; }

.section-nghien-cuu__card-date {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-white-40);
}

.section-nghien-cuu__nav {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-6);
}

.section-nghien-cuu__nav-btn {
  border-color: var(--color-white-20);
  background: var(--color-white-12);
  color: var(--color-white-80);
}

.section-nghien-cuu__nav-btn:hover {
  background: var(--color-white);
  color: var(--color-darkblue);
  border-color: transparent;
}

/* ── THE BRAND GROWTH FIRM ── */
.section-brand-growth-firm {
  position: relative;
  background: var(--grad-navy);
  padding: var(--section-margin-lg) var(--pad-x);
  min-height: 920px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.section-brand-growth-firm__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--section-gap-lg);
}

.section-brand-growth-firm__heading-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.section-brand-growth-firm__heading {
  text-align: center;
}

.section-brand-growth-firm__subtitle {
  font-family: var(--font-head);
  font-size: var(--text-h4);
  line-height: var(--lh-h4);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  text-align: center;
  max-width: 560px;
}

.section-brand-growth-firm__vm-row {
  display: flex;
  gap: var(--col-gap);
  justify-content: center;
  width: 100%;
  margin-bottom: var(--space-8);
  position: relative;
  z-index: 2;
}

.section-brand-growth-firm__vm-card {
  width: 560px;
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.section-brand-growth-firm__vm-title {
  font-family: var(--font-head);
  font-size: var(--text-h4);
  line-height: var(--lh-h4);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
}

.section-brand-growth-firm__vm-desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-80);
}

.section-brand-growth-firm__arc-wrap {
  position: relative;
  width: 100%;
  height: 480px;
  z-index: 1;
}

.section-brand-growth-firm__arc-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(138, 213, 238, 0.15) 0%, transparent 70%);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}

.section-brand-growth-firm__values {
  position: relative;
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 100%;
  padding: 0 var(--space-16);
}

.section-brand-growth-firm__value-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  width: 240px;
  cursor: default;
}

.section-brand-growth-firm__value-card:nth-child(1) { transform: translateY(-40px); }
.section-brand-growth-firm__value-card:nth-child(2) { transform: translateY(-10px); }
.section-brand-growth-firm__value-card:nth-child(3) { transform: translateY(-80px); }
.section-brand-growth-firm__value-card:nth-child(4) { transform: translateY(-50px); }

.section-brand-growth-firm__value-box {
  backdrop-filter: blur(6px);
  background: linear-gradient(179deg, transparent 1%, var(--color-white-4) 89%);
  padding: var(--space-6);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
  transition: background var(--dur-base) var(--ease-out), border var(--dur-base) var(--ease-out);
}

.section-brand-growth-firm__value-card:hover .section-brand-growth-firm__value-box {
  background: linear-gradient(179deg, var(--color-white-4) 1%, var(--color-white-1) 89%);
  border: 1px solid var(--color-white-12);
}

.section-brand-growth-firm__value-icon {
  color: var(--color-white-60);
}

.section-brand-growth-firm__value-title {
  font-family: var(--font-head);
  font-size: var(--text-h4);
  line-height: var(--lh-h4);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  display: block;
}

.section-brand-growth-firm__value-desc {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: var(--lh-para);
  color: var(--color-white-60);
  display: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}

.section-brand-growth-firm__value-card:hover .section-brand-growth-firm__value-desc {
  display: block;
  max-height: 200px;
}

.section-brand-growth-firm__value-card:hover .section-brand-growth-firm__value-title {
  background: linear-gradient(4deg, var(--color-darkorange) 0%, var(--color-lightorange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

.section-brand-growth-firm__value-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-white-40);
  border: 2px solid var(--color-white-20);
  transition: background var(--dur-fast) var(--ease-out);
}

.section-brand-growth-firm__value-card:first-child .section-brand-growth-firm__value-dot {
  background: var(--color-lightorange);
  border-color: var(--color-darkorange);
}

/* ── LIÊN HỆ ── */
.section-lien-he {
  background: var(--grad-navy);
  padding: var(--section-margin-lg) var(--pad-x);
  min-height: 920px;
  display: flex;
  align-items: center;
}

.section-lien-he__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--section-gap-lg);
}

.section-lien-he__heading-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.section-lien-he__heading {
  text-align: center;
  max-width: 840px;
}

.section-lien-he__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-80);
  max-width: 560px;
}

.section-lien-he__cards {
  display: flex;
  gap: var(--col-gap);
  align-items: center;
  justify-content: center;
  width: 100%;
}

.section-lien-he__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-10);
  width: 410px;
  padding: var(--space-12) var(--space-10);
  position: relative;
}

.section-lien-he__card--featured {
  width: 560px;
  border: 1px solid var(--color-white-12);
  border-radius: var(--radius-sm);
  background: linear-gradient(179deg, var(--color-white-4) 1%, var(--color-white-1) 89%);
  padding-bottom: calc(var(--space-12) + 26px + var(--space-4));
}

.section-lien-he__card-tag {
  position: absolute;
  top: -21px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  padding: var(--space-2) var(--space-5);
  border-radius: 100px;
  border: 1px solid var(--color-white-12);
  background: var(--color-white-1);
  backdrop-filter: blur(2px);
  font-family: var(--font-head);
  font-size: var(--text-subtitle);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  background: linear-gradient(130deg, var(--color-white-80) 0%, var(--color-white) 35%, var(--color-white) 65%, var(--color-white-80) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-lien-he__card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  width: 100%;
}

.section-lien-he__card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-lien-he__card-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
  width: 100%;
}

.section-lien-he__card-title {
  font-family: var(--font-head);
  font-size: var(--text-h3);
  line-height: var(--lh-h3);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
}

.section-lien-he__card-desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--lh-para);
  color: var(--color-white-80);
}

.section-lien-he__card-btn {
  position: absolute;
  bottom: calc(-1 * var(--space-8));
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .section-hero__stats { gap: var(--space-8); }
  .section-goc-nhin { flex-direction: column; }
  .section-goc-nhin__left { width: 100%; padding: var(--space-10) var(--pad-x); }
  .section-goc-nhin__right { padding: var(--space-8) var(--pad-x); }
  .section-brand-growth__inner { flex-direction: column; }
  .section-brand-growth__left { width: 100%; }
  .section-lien-he__cards { flex-direction: column; align-items: stretch; }
  .section-lien-he__card,
  .section-lien-he__card--featured { width: 100%; max-width: 560px; margin: 0 auto; }
  .section-brand-growth-firm__vm-row { flex-direction: column; align-items: center; }
  .section-brand-growth-firm__vm-card { width: 100%; max-width: 560px; }
  .section-brand-growth-firm__values { flex-wrap: wrap; height: auto; gap: var(--space-8); padding: 0; }
  .section-brand-growth-firm__value-card { transform: none !important; }
}

@media (max-width: 768px) {
  .section-hero__heading { font-size: var(--text-3xl); }
  .section-hero__stats { flex-wrap: wrap; gap: var(--space-6); justify-content: center; }
  .section-hero__inner,
  .section-brand-growth,
  .section-giai-phap,
  .section-nghien-cuu,
  .section-brand-growth-firm,
  .section-lien-he { padding-left: var(--pad-x-mobile); padding-right: var(--pad-x-mobile); }
  .section-goc-nhin__left { padding: var(--space-10) var(--pad-x-mobile); }
  .section-goc-nhin__right { padding: var(--space-8) var(--pad-x-mobile); }
  .section-goc-nhin__card { flex-direction: column; }
  .section-goc-nhin__card-image { width: 100%; }
  .h2-grad-navy, .h2-grad-white { font-size: var(--text-2xl); line-height: var(--lh-h3); }
  .section-doi-tac__label { padding: 0 var(--pad-x-mobile); }
  .section-giai-phap__head,
  .section-nghien-cuu__head { flex-direction: column; align-items: flex-start; }
  .section-giai-phap__card { width: 280px; }
  .section-nghien-cuu__card { width: 280px; }
}