@font-face {
  font-family: "Open Sans";
  src: url("../assets/fonts/OpenSans-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("../assets/fonts/OpenSans-Medium.ttf") format("truetype");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("../assets/fonts/OpenSans-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("../assets/fonts/OpenSans-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("../assets/fonts/OpenSans-ExtraBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}

:root {
  --navy-950: #031d35;
  --navy-900: #062d50;
  --navy-800: #0a3b64;
  --green-600: #68a92f;
  --green-500: #83bd3f;
  --green-100: #eef7e7;
  --ink: #0b2744;
  --muted: #5f7080;
  --line: #dfe7ed;
  --surface: #ffffff;
  --soft: #f5f8fa;
  --shadow: 0 18px 48px rgba(4, 36, 63, .12);
  --radius: 18px;
  --container: 1180px;
  --container-wide: 1320px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "Open Sans", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.container-wide {
  width: min(var(--container-wide), calc(100% - 40px));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: #fff;
  background: var(--navy-950);
  border-radius: 8px;
  transform: translateY(-160%);
}

.skip-link:focus { transform: none; }

:focus-visible {
  outline: 3px solid #f2b84b;
  outline-offset: 3px;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  color: #fff;
  background: linear-gradient(180deg, rgba(2, 22, 41, .82), rgba(2, 22, 41, 0));
  transition: background .25s ease, box-shadow .25s ease;
}

.site-header.scrolled {
  background: rgba(3, 29, 53, .96);
  box-shadow: 0 6px 24px rgba(0, 0, 0, .15);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand img {
  width: 158px;
  height: auto;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 600;
}

.primary-nav a:not(.nav-cta) { opacity: .84; }
.primary-nav a:hover { opacity: 1; }

.nav-cta {
  padding: 11px 18px;
  background: var(--green-600);
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  background: transparent;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: #fff;
}

.hero {
  position: relative;
  min-height: 900px;
  display: grid;
  align-content: center;
  padding: 130px 0 200px;
  color: #fff;
  isolation: isolate;
  background: var(--navy-950);
}

.hero-bg {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 100% center;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, rgba(2, 25, 47, .98) 0%, rgba(2, 25, 47, .86) 36%, rgba(2, 25, 47, .25) 68%, rgba(2, 25, 47, .08) 100%);
}

.hero-shade {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: radial-gradient(circle at 25% 50%, rgba(12, 75, 117, .28), transparent 48%);
}

.hero-content { position: relative; }

.eyebrow {
  margin: 0 0 14px;
  color: #bada8d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.eyebrow.dark { color: var(--green-600); }

.hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: 48px;
  line-height: 1.18;
  letter-spacing: -.035em;
  text-transform: uppercase;
}

.hero h1 span { color: var(--green-500); }
.hero h1 .hero-line {
  display: block;
  color: inherit;
  white-space: nowrap;
}
.hero h1 .hero-highlight {
  margin-bottom: .1em;
  color: var(--green-500);
}

.hero-copy {
  max-width: 600px;
  margin: 24px 0 30px;
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .03em;
  text-transform: uppercase;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(0, 0, 0, .2);
}

.button-primary { color: #fff; background: linear-gradient(135deg, var(--green-600), #91c746); }
.button-ghost { color: #fff; border-color: rgba(255, 255, 255, .45); background: rgba(3, 29, 53, .34); }

.stat-panel {
  position: absolute;
  z-index: 2;
  bottom: 34px;
  left: 50%;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  transform: translateX(-50%);
  background: rgba(3, 29, 53, .72);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 16px;
  backdrop-filter: blur(13px);
}

.hero-stat {
  position: relative;
  display: grid;
  min-height: 132px;
  align-content: center;
  justify-items: center;
  padding: 15px 12px;
  text-align: center;
}

.hero-stat:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 25%;
  width: 1px;
  height: 50%;
  background: rgba(255, 255, 255, .2);
}

.hero-stat .stat-icon {
  width: 30px;
  height: 30px;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(88%) sepia(21%) saturate(779%) hue-rotate(41deg) brightness(101%) contrast(83%);
}
.hero-stat strong { margin-top: 8px; font-size: 19px; }
.hero-stat > span:last-child { color: rgba(255, 255, 255, .72); font-size: 12px; }

.section-pad { padding: 20px 0; }

.need-grid {
  display: grid;
  grid-template-columns: .92fr 1.35fr;
  align-items: center;
  column-gap: 56px;
  row-gap: 34px;
}

.need-section-heading {
  grid-column: 1 / -1;
  text-align: center;
}

.need-section-heading h2 {
  margin: 0;
  color: var(--navy-900);
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -.025em;
  text-transform: uppercase;
  white-space: nowrap;
}

.need-section-heading span {
  color: var(--green-600);
}

.need-visual {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.need-visual img {
  width: 100%;
  height: 430px;
  object-fit: cover;
  object-position: center bottom;
  transform: scale(1.35);
  transform-origin: center bottom;
}

.need-visual::after {
  display: none;
}

.section-heading span { color: var(--green-600); }

.need-content .lead { color: var(--ink); font-size: 19px; font-weight: 600; }
.need-content > p:last-child { color: var(--muted); }

.need-features {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin: 35px 0;
}

.need-features article { text-align: center; }
.need-features .need-icon {
  display: block;
  width: 38px;
  height: 38px;
  margin: 0 auto;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(46%) sepia(79%) saturate(459%) hue-rotate(45deg) brightness(92%) contrast(91%);
}
.need-features h3 { margin: 10px 0 5px; font-size: 13px; line-height: 1.35; }
.need-features p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.45; }

.advantages, .ecosystem { background: var(--soft); }

.advantages .section-heading {
  max-width: 100%;
}

.ecosystem .section-heading {
  max-width: 100%;
}

.advantages .section-heading h2 {
  white-space: nowrap;
}

.ecosystem .section-heading h2 {
  white-space: nowrap;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -.025em;
  text-transform: uppercase;
}

.section-subheading {
  max-width: 720px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.advantage-card {
  min-height: 230px;
  padding: 28px 18px 22px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(5, 42, 72, .05);
  transition: transform .25s ease, box-shadow .25s ease;
}

.advantage-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow);
}

.card-icon {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  margin: 0 auto 18px;
  color: #68a92f;
  background: #fff;
  border-radius: 16px;
}

.card-icon img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(57%) sepia(62%) saturate(589%) hue-rotate(42deg) brightness(91%) contrast(89%);
}

.advantage-card h3 {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.35;
  text-transform: uppercase;
}

.advantage-card p { margin: 0; color: var(--muted); font-size: 11px; }

.infra-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.infra-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(4, 36, 63, .07);
}

.infra-card > img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  transition: transform .45s ease;
}

.infra-card:hover > img { transform: scale(1.05); }

.infra-body {
  position: relative;
  min-height: 210px;
  padding: 31px 17px 22px;
  text-align: center;
}

.infra-number {
  position: absolute;
  top: -24px;
  left: 50%;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: #fff;
  background: #2879b6;
  border: 4px solid #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  transform: translateX(-50%);
}

.infra-number img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.infra-number.orange { background: #ef8a3d; }
.infra-number.cyan { background: #1d9db2; }
.infra-number.purple { background: #8155a2; }
.infra-body h3 { margin: 0 0 10px; font-size: 14px; text-transform: uppercase; }
.infra-body strong { display: block; color: var(--navy-800); font-size: 17px; }
.infra-body p { margin: 8px 0 0; color: var(--muted); font-size: 11px; }

.video-section { padding-top: 20px; }

.video-shell {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  padding: 26px;
  color: #fff;
  background: linear-gradient(135deg, #083c66, var(--navy-950));
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.video-poster {
  position: relative;
  display: block;
  min-height: 300px;
  padding: 0;
  overflow: hidden;
  border: 2px solid rgba(116, 184, 58, .6);
  border-radius: 12px;
  cursor: pointer;
}

.video-poster img { width: 100%; height: 100%; object-fit: cover; }
.video-poster::after { content: ""; position: absolute; inset: 0; background: rgba(4, 34, 58, .2); }

.play-button {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  padding-left: 5px;
  color: var(--navy-900);
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .25);
  transform: translate(-50%, -50%);
}

.video-copy { align-self: center; padding: 14px 20px 14px 0; }
.video-copy h2 { margin: 0; font-size: 32px; line-height: 1.25; text-transform: uppercase; }
.video-copy > p:not(.eyebrow) { color: rgba(255, 255, 255, .75); }
.video-values { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.video-values span { padding: 8px 12px; border: 1px solid rgba(255, 255, 255, .2); border-radius: 999px; font-size: 11px; text-transform: uppercase; }

.company-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.company-card {
  display: flex;
  min-height: 160px;
  flex-direction: column;
  justify-content: center;
  padding: 20px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.company-card strong { color: var(--navy-800); font-size: 18px; }
.company-card span { margin: 8px 0; color: var(--ink); font-size: 11px; }
.company-card small { color: var(--muted); }

.process-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: #d5e0e7;
}

.process-list li {
  position: relative;
  z-index: 1;
  text-align: center;
}

.process-list li > span {
  display: grid;
  width: 45px;
  height: 45px;
  place-items: center;
  margin: 0 auto 18px;
  color: #fff;
  background: var(--green-600);
  border: 5px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px #cfe0c2;
  font-size: 10px;
  font-weight: 800;
}

.process-list h3 { min-height: 39px; margin: 0 0 7px; font-size: 12px; text-transform: uppercase; }
.process-list p { margin: 0; color: var(--muted); font-size: 10px; }

.contact-section {
  position: relative;
  padding: 78px 0;
  color: #fff;
  isolation: isolate;
  background: var(--navy-950) url("../assets/images/aerial.webp") center / cover no-repeat;
}

.contact-section::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(3, 29, 53, .91);
}

.contact-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr .55fr;
  align-items: center;
  gap: 34px;
}

#contact-title { margin: 0; font-size: 28px; line-height: 1.28; text-transform: uppercase; }
.check-list { margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; margin: 8px 0; padding-left: 25px; color: rgba(255, 255, 255, .8); font-size: 13px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green-500); font-weight: 800; }

.form-card {
  width: 100%;
  max-width: 580px;
  justify-self: center;
  padding: 4px 0;
  color: #fff;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}

.form-heading { margin-bottom: 13px; }
.form-heading p { margin: 0 0 3px; font-size: 18px; line-height: 1.25; font-weight: 800; text-transform: uppercase; }
.form-heading span { color: rgba(255, 255, 255, .7); font-size: 11px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 10px;
}

.field { display: grid; gap: 3px; align-content: start; }
.field-full { grid-column: 1 / -1; }
.field label { color: rgba(255, 255, 255, .88); font-size: 10px; line-height: 1.25; font-weight: 700; }
.field label > span, .check-control b { color: #c73535; }

.field input, .field select, .field textarea {
  width: 100%;
  min-height: 34px;
  padding: 7px 9px;
  color: #fff;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .48);
  border-radius: 4px;
  font-size: 11px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.field textarea { min-height: 52px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: rgba(255, 255, 255, .5); }
.field select option { color: #fff; background: var(--navy-900); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(104, 169, 47, .14); }
.field [aria-invalid="true"] { border-color: #bc3030; }
.field-error { color: #ffb4b4; font-size: 9px; line-height: 1.2; }
.field-error:empty { display: none; }

.check-control {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 7px;
  align-items: start;
  cursor: pointer;
  font-weight: 400 !important;
}

.consent-field { margin-top: 1px; }
.check-control input { width: 16px; min-height: 16px; margin: 1px 0 0; accent-color: var(--green-600); }
.check-control span { font-size: 9px; line-height: 1.35; }
.check-control a { color: #b9e47c; text-decoration: underline; }
.hp-field { position: absolute !important; left: -9999px !important; }

.submit-button { width: 100%; min-height: 40px; margin-top: 8px; padding: 9px; border: 0; border-radius: 7px; font-size: 12px; }
.submit-button[disabled] { cursor: wait; opacity: .72; }
.submit-spinner { display: none; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.45); border-top-color: #fff; border-radius: 50%; animation: spin .8s linear infinite; }
.submit-button.is-loading .submit-spinner { display: inline-block; }
.form-status { margin-top: 6px; color: #ffb4b4; font-size: 10px; }
.form-status:empty { display: none; }

.form-success { padding: 35px 10px; text-align: center; }
.form-success > span { display: grid; width: 62px; height: 62px; place-items: center; margin: 0 auto 18px; color: #fff; background: var(--green-600); border-radius: 50%; font-size: 28px; }
.form-success h3 { margin: 0 0 8px; }
.form-success p { margin: 0; color: rgba(255, 255, 255, .72); }

.contact-details { display: grid; gap: 9px; }
.contact-details img { width: 170px; height: auto; margin-bottom: 12px; }
.contact-details a { font-size: 13px; }
.contact-details .contact-label { margin: 0; color: rgba(255,255,255,.58); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.contact-details .hotline { color: #a5d566; font-size: 24px; font-weight: 800; }
.contact-details address { margin-top: 10px; color: rgba(255,255,255,.7); font-size: 12px; font-style: normal; }
.contact-item { display: flex; align-items: center; gap: 9px; }
.contact-icon { position: relative; display: inline-block; width: 18px; height: 18px; flex: 0 0 18px; color: #a5d566; }
.contact-icon-email { border: 1.5px solid currentColor; border-radius: 3px; }
.contact-icon-email::before, .contact-icon-email::after {
  content: "";
  position: absolute;
  top: 3px;
  width: 9px;
  border-top: 1.5px solid currentColor;
}
.contact-icon-email::before { left: 1px; transform: rotate(32deg); }
.contact-icon-email::after { right: 1px; transform: rotate(-32deg); }
.contact-icon-website { border: 1.5px solid currentColor; border-radius: 50%; }
.contact-icon-website::before {
  content: "";
  position: absolute;
  inset: 2px 5px;
  border-right: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
  border-radius: 50%;
}
.contact-icon-website::after {
  content: "";
  position: absolute;
  top: 7px;
  right: 1px;
  left: 1px;
  border-top: 1.5px solid currentColor;
}
.contact-icon-location::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 3px;
  width: 11px;
  height: 11px;
  border: 1.5px solid currentColor;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
}
.contact-icon-location::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 7px;
  width: 3px;
  height: 3px;
  background: currentColor;
  border-radius: 50%;
}

.site-footer { padding: 10px 0; color: rgba(255,255,255,.65); background: #021524; font-size: 11px; }
.site-footer .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-footer p { margin: 0; }
.back-to-top {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  margin-left: auto;
  color: #fff;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
  font-size: 18px;
  line-height: 1;
}

.icon-credit {
  color: rgba(255,255,255,.55);
  font-size: 9px;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.contact-widget {
  position: fixed;
  z-index: 120;
  right: 24px;
  bottom: 24px;
  display: grid;
  justify-items: center;
}

.contact-widget-actions {
  position: static;
  display: grid;
  gap: 14px;
  visibility: visible;
  opacity: 1;
  transform: none;
}

.contact-widget.is-open .contact-widget-actions {
  visibility: visible;
  opacity: 1;
  transform: none;
}

.contact-widget-button,
.contact-widget-launcher {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  padding: 0;
  color: #fff;
  background: var(--contact-button-bg, #031d35);
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(0,0,0,.24);
  cursor: pointer;
  isolation: isolate;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.contact-widget-launcher { width: 58px; height: 58px; }
.contact-widget-button:hover,
.contact-widget-launcher:hover { background: var(--contact-button-bg, #031d35); box-shadow: 0 9px 24px rgba(0,0,0,.32); filter: brightness(1.06); transform: translateY(-2px) scale(1.03); }
.contact-widget-button.is-zalo {
  --contact-button-bg: #83bd3f;
  box-shadow: 0 6px 18px rgba(0,0,0,.24);
}
.contact-widget-button.is-phone {
  --contact-button-bg: #83bd3f;
  box-shadow: 0 0 0 8px rgba(131,189,63,.18), 0 6px 18px rgba(0,0,0,.24);
}
.contact-widget-button.is-phone::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -9px;
  border: 2px solid rgba(131,189,63,.36);
  border-radius: 50%;
  animation: contact-pulse 1.8s ease-out infinite;
}
.contact-widget-button.is-visit { --contact-button-bg: #83bd3f; }
.contact-widget-button::after {
  content: attr(title);
  position: absolute;
  top: 50%;
  right: calc(100% + 12px);
  width: max-content;
  padding: 7px 12px;
  color: #fff;
  background: rgba(3,29,53,.9);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  pointer-events: none;
  opacity: 0;
  transform: translate(8px,-50%);
  transition: opacity .18s ease, transform .18s ease;
}
.contact-widget-button:hover::after,
.contact-widget-button:focus-visible::after { opacity: 1; transform: translate(0,-50%); }
.contact-widget-button:focus-visible,
.contact-widget-launcher:focus-visible,
.contact-form-close:focus-visible { outline: 3px solid #a5d566; outline-offset: 3px; }
.contact-widget-button img,
.contact-widget-launcher img {
  width: 25px;
  height: 25px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.contact-widget-launcher img { width: 28px; height: 28px; }
.contact-widget-button .contact-svg {
  width: 42px;
  height: 42px;
  overflow: visible;
  animation: contact-breathe .8s ease-in-out infinite alternate;
}
.contact-widget-button .contact-zalo-file {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: none;
  animation: contact-breathe .8s ease-in-out infinite alternate;
}
.contact-svg-phone {
  fill: none;
  stroke: #fff;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.contact-svg-phone > path:first-child { fill: #fff; stroke: none; }
.contact-svg-phone .phone-wave { stroke-width: 2.5; }
.contact-widget-button.is-zalo:hover,
.contact-widget-button.is-phone:hover { filter: brightness(1.04); }

@keyframes contact-breathe {
  from { transform: scale(.92); }
  to { transform: scale(1); }
}
.contact-widget-launcher[aria-expanded="true"] img { transform: rotate(-8deg) scale(.92); }

@keyframes contact-pulse {
  0% { opacity: .9; transform: scale(.82); }
  75%, 100% { opacity: 0; transform: scale(1.18); }
}

.contact-form-modal {
  width: min(650px, calc(100% - 32px));
  max-height: min(90vh, 820px);
  padding: 28px 34px 30px;
  overflow: auto;
  color: #fff;
  background: #031d35;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 16px;
  box-shadow: 0 30px 80px rgba(0,0,0,.48);
}

.contact-form-modal::backdrop { background: rgba(0, 15, 29, .78); backdrop-filter: blur(4px); }
.contact-form-modal .form-card { max-width: none; }
.contact-form-close {
  position: sticky;
  z-index: 1;
  top: -17px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  margin: -12px -17px -22px auto;
  padding: 0;
  color: #fff;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  cursor: pointer;
  font-size: 26px;
  line-height: 1;
}

.video-modal {
  width: min(960px, calc(100% - 32px));
  padding: 0;
  overflow: hidden;
  color: #fff;
  background: var(--navy-950);
  border: 0;
  border-radius: 15px;
  box-shadow: 0 30px 80px rgba(0,0,0,.45);
}

.video-modal::backdrop { background: rgba(0, 15, 29, .84); backdrop-filter: blur(5px); }
.video-embed { aspect-ratio: 16 / 9; background: #000; }
.video-embed iframe { display: block; width: 100%; height: 100%; border: 0; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 15px 18px; }
.modal-head h2 { margin: 0; font-size: 32px; }
.modal-head button { width: 38px; height: 38px; color: #fff; background: transparent; border: 0; cursor: pointer; font-size: 28px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 1100px) {
  .need-section-heading h2 { white-space: normal; }
  .advantages .section-heading h2 { white-space: normal; }
  .ecosystem .section-heading h2 { white-space: normal; }
  .advantage-grid { grid-template-columns: repeat(3, 1fr); }
  .infra-grid { grid-template-columns: repeat(3, 1fr); }
  .company-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: .8fr 1.25fr; }
  .contact-details { grid-column: 1 / -1; grid-template-columns: repeat(4, 1fr); align-items: center; }
  .contact-details img { margin: 0; }
  .need-features { grid-template-columns: repeat(3, 1fr); row-gap: 25px; }
}

@media (max-width: 860px) {
  .container { width: min(100% - 32px, var(--container)); }
  .header-inner { min-height: 70px; }
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 69px;
    left: 0;
    display: none;
    width: 100%;
    padding: 18px 24px 24px;
    align-items: stretch;
    flex-direction: column;
    gap: 3px;
    color: #fff;
    background: rgba(3, 29, 53, .98);
    box-shadow: 0 18px 25px rgba(0,0,0,.18);
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 11px 8px; }
  .nav-cta { margin-top: 7px; text-align: center; }
  .hero { min-height: 980px; padding-bottom: 350px; }
  .hero-bg { object-position: 62% center; }
  .hero h1 .hero-highlight { margin-bottom: 0; }
  .hero::after { background: linear-gradient(90deg, rgba(2,25,47,.96), rgba(2,25,47,.55)); }
  .stat-panel { bottom: 30px; grid-template-columns: repeat(3, 1fr); }
  .hero-stat { min-height: 105px; }
  .hero-stat:nth-child(3)::after { display: none; }
  .need-grid { grid-template-columns: 1fr; }
  .need-visual { border-radius: var(--radius); }
  .video-shell { grid-template-columns: 1fr; }
  .video-copy { padding: 15px; }
  .process-list { grid-template-columns: repeat(3, 1fr); row-gap: 35px; }
  .process-list::before { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-details { grid-column: auto; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .container { width: min(100% - 24px, var(--container)); }
  .section-pad { padding: 20px 0; }
  .brand img { width: 136px; }
  .hero {
    min-height: 920px;
    padding: 112px 0 385px;
    align-content: start;
  }
  .hero-bg { object-position: 67% center; }
  .hero h1 {
    font-size: clamp(25px, 7.5vw, 32px);
    line-height: 1.15;
  }
  .hero-copy { font-size: 14px; }
  .hero-actions { display: grid; }
  .stat-panel { bottom: 18px; grid-template-columns: repeat(2, 1fr); }
  .hero-stat { min-height: 105px; padding: 11px 6px; }
  .hero-stat:nth-child(2)::after, .hero-stat:nth-child(4)::after { display: none; }
  .hero-stat:last-child { grid-column: 1 / -1; }
  .hero-stat strong { font-size: 16px; }
  .need-grid { gap: 28px; }
  .need-visual, .need-visual img { min-height: 390px; height: 390px; }
  .need-features { grid-template-columns: repeat(2, 1fr); }
  .advantage-grid, .infra-grid, .company-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-card { min-height: 215px; padding: 23px 12px 18px; }
  .infra-card:last-child, .company-card:last-child { grid-column: 1 / -1; }
  .infra-card > img { height: 130px; }
  .video-shell { width: calc(100% - 24px); padding: 13px; gap: 12px; }
  .video-poster { min-height: 220px; }
  .video-copy h2 { font-size: 32px; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .form-card { padding: 4px 0; }
  .contact-details { grid-template-columns: 1fr; }
  .site-footer .container { flex-direction: row; }
  .contact-widget { right: 14px; bottom: 14px; }
  .contact-widget-button { width: 48px; height: 48px; }
  .contact-widget-launcher { width: 54px; height: 54px; }
  .contact-form-modal { width: calc(100% - 20px); padding: 24px 16px 22px; }
  .contact-form-close { top: -14px; margin: -10px -4px -24px auto; }
}

@media (max-width: 480px) {
  .form-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
}

@media (max-width: 390px) {
  .advantage-grid, .infra-grid, .company-grid { grid-template-columns: 1fr; }
  .infra-card:last-child, .company-card:last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}