:root {
  --green-900: #003e07;
  --green-800: #005508;
  --green-700: #006308;
  --green-600: #087b12;
  --green-100: #eaf5eb;
  --green-50: #f4faf4;
  --red-800: #c90000;
  --red-700: #c90000;
  --red-100: #fff0f0;
  --ink-900: #18221a;
  --ink-800: #263229;
  --ink-700: #3f4b42;
  --ink-600: #5d6860;
  --line: #dfe8e1;
  --surface: #ffffff;
  --surface-soft: #f7faf7;
  --cream: #fbf8f1;
  --shadow-sm: 0 8px 24px rgba(0, 63, 7, .08);
  --shadow-md: 0 18px 50px rgba(0, 63, 7, .13);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink-800);
  background: var(--surface);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink-900);
  line-height: 1.16;
  letter-spacing: -.025em;
}

h1 {
  font-size: clamp(2.3rem, 5.1vw, 4.6rem);
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(1.9rem, 3.6vw, 3.25rem);
  margin-bottom: 20px;
}

h3 {
  font-size: clamp(1.12rem, 1.7vw, 1.45rem);
  margin-bottom: 12px;
}

p:last-child {
  margin-bottom: 0;
}

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

.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--surface-soft);
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-heading p {
  color: var(--ink-600);
  font-size: 1.05rem;
}

.section-heading-light h2,
.section-heading-light p {
  color: #fff;
}

.section-heading-light p {
  opacity: .78;
}

.section-copy {
  max-width: 680px;
}

.lead {
  color: var(--ink-700);
  font-size: 1.12rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--green-700);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 28px;
  height: 2px;
  content: "";
  background: currentColor;
}

.eyebrow-light {
  color: #d7f1da;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink-900);
  border-radius: 8px;
  transform: translateY(-150%);
}

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

.topbar {
  color: #fff;
  background: var(--green-900);
  font-size: .84rem;
}

.topbar-inner {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar p {
  margin: 0;
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-actions span {
  opacity: .76;
}

.topbar a {
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition: box-shadow .25s ease, border-color .25s ease;
}

.site-header.scrolled {
  border-color: var(--line);
  box-shadow: 0 8px 30px rgba(15, 50, 21, .08);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  width: 205px;
  height: auto;
  max-height: 62px;
  object-fit: contain;
}

.footer-logo {
  padding: 5px 8px;
  background: #fff;
  border-radius: 10px;
}

.primary-nav {
  margin-left: auto;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.primary-nav a {
  position: relative;
  display: block;
  padding: 28px 0;
  color: var(--ink-700);
  font-size: .92rem;
  font-weight: 700;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--green-700);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--green-700);
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--ink-900);
  transition: transform .2s ease, opacity .2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.btn-primary {
  color: #fff;
  background: var(--red-800);
  box-shadow: 0 12px 24px rgba(201, 0, 0, .22);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #a90000;
  box-shadow: 0 15px 28px rgba(201, 0, 0, .3);
}

.btn-secondary {
  color: #fff;
  background: var(--green-700);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--green-800);
}

.btn-outline {
  color: var(--green-800);
  background: rgba(255, 255, 255, .78);
  border-color: rgba(0, 99, 8, .28);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: #fff;
  border-color: var(--green-700);
}

.btn-light {
  color: var(--green-900);
  background: #fff;
}

.btn-lg {
  min-height: 54px;
  padding: 15px 25px;
}

.btn-block {
  width: 100%;
}

.header-cta {
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  min-width: 150px;
  padding: 10px 18px;
  border-radius: 14px;
  font-size: .74rem;
}

.header-cta strong {
  font-size: .95rem;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 680px;
  display: flex;
  align-items: center;
  padding: 86px 0 94px;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, .97) 0%, rgba(247, 252, 247, .93) 43%, rgba(0, 62, 7, .48) 100%),
    url('images/bg-diet-moi-tai-da-nang.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image:
    linear-gradient(rgba(0, 99, 8, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 99, 8, .05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 90%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  align-items: center;
  gap: 70px;
}

.hero-content h1 span {
  color: var(--green-700);
}

.hero-lead {
  max-width: 720px;
  margin-bottom: 30px;
  color: var(--ink-600);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-700);
  font-size: .92rem;
  font-weight: 700;
}

.hero-checks li {
  position: relative;
  padding-left: 24px;
}

.hero-checks li::before {
  position: absolute;
  top: .42em;
  left: 0;
  width: 13px;
  height: 13px;
  content: "";
  border: 2px solid var(--green-700);
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px #fff;
  background: var(--green-700);
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.visual-glow {
  position: absolute;
  top: 12%;
  left: 15%;
  width: 320px;
  height: 320px;
  background: rgba(0, 99, 8, .14);
  filter: blur(50px);
  border-radius: 50%;
}

.visual-card {
  position: absolute;
  border: 1px solid rgba(0, 99, 8, .12);
  box-shadow: var(--shadow-md);
}

.visual-card-main {
  top: 20px;
  right: 24px;
  width: min(420px, 88%);
  min-height: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 42px;
  color: #fff;
  text-align: center;
  border-radius: 32px;
  transform: rotate(2deg);
}

.visual-card-label {
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .11em;
}

.visual-shield {
  width: 120px;
  margin: 24px 0 14px;
}

.visual-card-main h2 {
  margin-bottom: 14px;
  color: #fff;
  font-size: 2.2rem;
}

.visual-card-main p {
  max-width: 290px;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, .76);
}

.visual-card-main a {
  font-size: 1.3rem;
  font-weight: 900;
}

.visual-card-small {
  z-index: 2;
  width: 235px;
  padding: 18px;
  background: rgba(255, 255, 255, .96);
  border-radius: 18px;
}

.visual-card-small strong,
.visual-card-small small {
  display: block;
}

.visual-card-small strong {
  margin-top: 8px;
  color: var(--ink-900);
}

.visual-card-small small {
  margin-top: 4px;
  color: var(--ink-600);
  line-height: 1.45;
}

.mini-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: #fff;
  background: var(--red-800);
  border-radius: 10px;
  font-size: .8rem;
  font-weight: 900;
}

.card-a {
  bottom: 88px;
  left: 0;
}

.card-b {
  right: 0;
  bottom: 0;
}

.trust-strip {
  position: relative;
  z-index: 2;
  margin-top: -28px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-md);
}

.trust-grid > div {
  position: relative;
  padding: 24px;
}

.trust-grid > div:not(:last-child)::after {
  position: absolute;
  top: 22%;
  right: 0;
  width: 1px;
  height: 56%;
  content: "";
  background: var(--line);
}

.trust-grid strong,
.trust-grid span {
  display: block;
}

.trust-grid strong {
  margin-bottom: 4px;
  color: var(--green-700);
}

.trust-grid span {
  color: var(--ink-600);
  font-size: .88rem;
  line-height: 1.5;
}

.two-column {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: start;
  gap: 72px;
}

.text-link {
  color: var(--green-700);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgba(0, 99, 8, .25);
  text-underline-offset: 4px;
}

.info-note {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--green-50);
  border-left: 4px solid var(--green-700);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.info-note strong {
  color: var(--green-800);
}

.diagnostic-card {
  padding: 34px;
  background: var(--cream);
  border: 1px solid #eee6d9;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.card-kicker,
.quote-label,
.tech-label,
.map-top > span,
.form-heading > span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--red-800);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.check-list {
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin: 10px 0;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  top: .45em;
  left: 0;
  width: 15px;
  height: 15px;
  content: "✓";
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--green-700);
  border-radius: 50%;
  font-size: .64rem;
  font-weight: 900;
}

.check-list.compact {
  margin-bottom: 0;
}

.small-note,
.form-note {
  color: var(--ink-600);
  font-size: .84rem;
}

.diagnostic-card .small-note {
  margin: 14px 0 0;
  text-align: center;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  min-height: 100%;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(18, 51, 23, .04);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 99, 8, .28);
  box-shadow: var(--shadow-md);
}

.service-card p,
.service-card li {
  color: var(--ink-600);
}

.service-card ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.service-card li + li {
  margin-top: 7px;
}

.service-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--green-700);
  background: var(--green-100);
  border-radius: 13px;
  font-size: .78rem;
  font-weight: 900;
}

.service-card-cta {
  color: #fff;
  background: linear-gradient(145deg, var(--green-900), var(--green-700));
  border-color: transparent;
}

.service-card-cta h3,
.service-card-cta p {
  color: #fff;
}

.service-card-cta p {
  opacity: .78;
}

.service-card-cta .service-icon {
  color: #fff;
  background: rgba(255, 255, 255, .14);
}

.process-section {
  background: linear-gradient(to bottom, #fff 0%, #fff 58%, var(--green-50) 58%, var(--green-50) 100%);
}

.process-list {
  max-width: 980px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  position: relative;
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 24px;
  padding: 26px 28px;
  margin-bottom: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.process-list li > span {
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--green-700);
  border-radius: 18px;
  font-size: .8rem;
  font-weight: 900;
}

.process-list li:nth-child(even) > span {
  background: var(--red-800);
}

.process-list h3 {
  margin-bottom: 6px;
}

.process-list p {
  margin: 0;
  color: var(--ink-600);
}

.tech-section {
  color: #fff;
  background:
    radial-gradient(circle at 15% 15%, rgba(255, 255, 255, .08), transparent 24%),
    linear-gradient(145deg, #003b07, #006308 62%, #087b12);
}

.tech-tabs {
  overflow: hidden;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .18);
}

.tab-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.tab-button {
  min-height: 60px;
  padding: 14px;
  color: rgba(255, 255, 255, .7);
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, .1);
  cursor: pointer;
  font-weight: 800;
}

.tab-button:last-child {
  border-right: 0;
}

.tab-button.active,
.tab-button:hover,
.tab-button:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, .11);
}

.tab-panel {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 54px;
  padding: 50px;
}

.tab-copy h3 {
  color: #fff;
  font-size: clamp(1.6rem, 2.8vw, 2.45rem);
}

.tab-copy p,
.tab-copy li {
  color: rgba(255, 255, 255, .76);
}

.tab-copy .check-list li::before {
  color: var(--green-900);
  background: #ccebcf;
}

.tech-label {
  color: #d7f1da;
}

.tech-visual {
  min-height: 270px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 30px;
  text-align: center;
  background:
    linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 26px;
}

.tech-visual span {
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  font-weight: 950;
  letter-spacing: -.05em;
}

.tech-visual small {
  color: rgba(255, 255, 255, .68);
}

.construction-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.construction-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.construction-card::after {
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 90px;
  height: 90px;
  content: "";
  background: var(--green-50);
  border-radius: 50%;
}

.construction-card > span {
  display: block;
  margin-bottom: 22px;
  color: var(--red-800);
  font-size: .78rem;
  font-weight: 900;
}

.construction-card p {
  position: relative;
  z-index: 1;
  color: var(--ink-600);
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  margin-top: 34px;
  padding: 34px 38px;
  background: var(--cream);
  border: 1px solid #eee6d9;
  border-radius: var(--radius-md);
}

.cta-panel h3 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
}

.product-section {
  background: var(--surface-soft);
}

.table-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  text-align: left;
}

caption {
  padding: 22px 24px;
  color: var(--ink-900);
  font-weight: 800;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th,
td {
  padding: 18px 20px;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

th {
  color: #fff;
  background: var(--green-700);
  font-size: .88rem;
  letter-spacing: .02em;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:nth-child(even) {
  background: var(--green-50);
}

.safety-note {
  margin-top: 22px;
  padding: 22px 24px;
  background: var(--red-100);
  border-left: 4px solid var(--red-800);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.safety-note strong {
  color: var(--red-800);
}

.safety-note p {
  margin: 6px 0 0;
}

.pest-section {
  color: #fff;
  background: #142318;
}

.pest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.pest-card {
  padding: 30px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.11);
  border-radius: var(--radius-md);
  transition: transform .22s ease, background-color .22s ease;
}

.pest-card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,.1);
}

.pest-card h3 {
  color: #fff;
}

.pest-card p {
  color: rgba(255,255,255,.7);
}

.pest-letter {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: #fff;
  background: var(--red-800);
  border-radius: 14px;
  font-weight: 900;
}

.audience-section {
  background: var(--cream);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.audience-grid span {
  padding: 18px;
  color: var(--green-900);
  background: #fff;
  border: 1px solid #e8e2d7;
  border-radius: 14px;
  font-weight: 800;
  text-align: center;
}

.area-section {
  background: linear-gradient(180deg, #fff, var(--green-50));
}

.area-grid {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  align-items: center;
  gap: 64px;
}

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.area-tags span {
  padding: 8px 13px;
  color: var(--green-800);
  background: #fff;
  border: 1px solid rgba(0, 99, 8, .18);
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 750;
}

.map-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.map-top {
  padding: 24px;
}

.map-top strong,
.map-top p {
  display: block;
}

.map-top strong {
  color: var(--ink-900);
  font-size: 1.3rem;
}

.map-top p {
  margin: 4px 0 0;
  color: var(--ink-600);
}

.map-card iframe {
  width: 100%;
  height: 320px;
  display: block;
  border: 0;
}

.map-card .btn {
  margin: 18px 24px 24px;
  width: calc(100% - 48px);
}

.pricing-section {
  background: #fff;
}

.pricing-grid {
  align-items: center;
}

.quote-card {
  padding: 36px;
  color: #fff;
  background: linear-gradient(145deg, var(--green-900), var(--green-700));
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.quote-card h3 {
  color: #fff;
  font-size: 1.75rem;
}

.quote-card ol {
  margin: 22px 0 28px;
  padding-left: 22px;
}

.quote-card li + li {
  margin-top: 8px;
}

.quote-label {
  color: #d7f1da;
}

.why-section {
  background: var(--surface-soft);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.why-item {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.why-item > span {
  display: block;
  margin-bottom: 18px;
  color: var(--red-800);
  font-size: .8rem;
  font-weight: 900;
}

.why-item p {
  color: var(--ink-600);
}

.faq-section {
  background: #fff;
}

.faq-grid {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  align-items: start;
  gap: 64px;
}

.faq-intro {
  position: sticky;
  top: 120px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  color: var(--ink-900);
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-weight: 800;
}

.faq-question i {
  position: relative;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.faq-question i::before,
.faq-question i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  content: "";
  background: var(--green-700);
  transform: translate(-50%, -50%);
  transition: transform .2s ease;
}

.faq-question i::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-question[aria-expanded="true"] i::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .26s ease;
}

.faq-answer > p {
  overflow: hidden;
  margin: 0;
  color: var(--ink-600);
}

.faq-item.open .faq-answer {
  grid-template-rows: 1fr;
}

.faq-item.open .faq-answer > p {
  padding-bottom: 22px;
}

.contact-section {
  padding: 100px 0;
  color: #fff;
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.1), transparent 24%),
    linear-gradient(135deg, var(--green-900), var(--green-700));
}

.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 70px;
}

.contact-copy h2 {
  color: #fff;
}

.contact-copy > p {
  color: rgba(255,255,255,.76);
  font-size: 1.05rem;
}

.contact-details {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.contact-details a,
.contact-details > div {
  display: flex;
  flex-direction: column;
  padding: 18px 20px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
}

.contact-details span {
  color: rgba(255,255,255,.62);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.contact-details strong {
  margin-top: 4px;
  font-size: 1.08rem;
}

.contact-form {
  padding: 36px;
  color: var(--ink-800);
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
}

.form-heading h3 {
  font-size: 1.8rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-grid label > span {
  color: var(--ink-700);
  font-size: .86rem;
  font-weight: 750;
}

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

input,
textarea {
  width: 100%;
  color: var(--ink-900);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}

input {
  height: 48px;
  padding: 0 14px;
}

textarea {
  padding: 12px 14px;
  resize: vertical;
}

input:focus,
textarea:focus {
  background: #fff;
  border-color: var(--green-700);
  box-shadow: 0 0 0 4px rgba(0, 99, 8, .1);
}

.form-note {
  margin: 12px 0 0;
  text-align: center;
}

.site-footer {
  padding: 70px 0 26px;
  color: rgba(255,255,255,.72);
  background: #0d1710;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 46px;
}

.brand-light {
  color: #fff;
}

.footer-brand p {
  max-width: 370px;
  margin-top: 18px;
}

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer li + li {
  margin-top: 8px;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: #fff;
}

.site-footer address {
  font-style: normal;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 54px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .84rem;
}

.footer-bottom p {
  margin: 0;
}

.mobile-contact-bar {
  display: none;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--green-700);
  border: 0;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .2s ease, transform .2s ease;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1120px) {
  .primary-nav ul {
    gap: 16px;
  }

  .primary-nav a {
    font-size: .86rem;
  }

  .header-cta {
    display: none;
  }

  .hero-grid {
    gap: 36px;
  }

  .service-grid,
  .construction-grid,
  .pest-grid,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .section {
    padding: 78px 0;
  }

  .topbar-actions span {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .primary-nav {
    position: fixed;
    top: 120px;
    right: 20px;
    left: 20px;
    z-index: 999;
    display: none;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow-md);
  }

  .primary-nav.open {
    display: block;
  }

  .primary-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav a {
    padding: 13px 14px;
    border-radius: 10px;
  }

  .primary-nav a:hover {
    background: var(--green-50);
  }

  .primary-nav a::after {
    display: none;
  }

  .hero {
    padding-top: 66px;
  }

  .hero-grid,
  .two-column,
  .area-grid,
  .faq-grid,
  .contact-grid,
  .tab-panel {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 500px;
    max-width: 620px;
    width: 100%;
    margin-inline: auto;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-grid > div:nth-child(2)::after {
    display: none;
  }

  .trust-grid > div:nth-child(-n+2) {
    border-bottom: 1px solid var(--line);
  }

  .two-column,
  .area-grid,
  .faq-grid,
  .contact-grid {
    gap: 42px;
  }

  .tab-panel {
    gap: 30px;
  }

  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .faq-intro {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body {
    padding-bottom: 70px;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .section {
    padding: 66px 0;
  }

  .section-heading {
    margin-bottom: 38px;
    text-align: left;
  }

  .topbar-inner {
    min-height: 42px;
    justify-content: center;
  }

  .topbar p {
    display: none;
  }

  .topbar-actions {
    width: 100%;
    justify-content: center;
  }

  .header-inner {
    min-height: 72px;
    gap: 12px;
  }

  .brand-logo {
    width: 166px;
    max-height: 54px;
  }

  .primary-nav {
    top: 104px;
  }

  .hero {
    min-height: 580px;
    padding: 54px 0 74px;
    background-image:
      linear-gradient(90deg, rgba(255, 255, 255, .97) 0%, rgba(247, 252, 247, .94) 58%, rgba(0, 62, 7, .38) 100%),
      url('images/bg-diet-moi-tai-da-nang.png');
    background-position: 58% center;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-content {
    padding: 24px 18px;
    background: rgba(255, 255, 255, .88);
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: 22px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(5px);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-checks {
    display: grid;
    gap: 10px;
  }

  .hero-visual {
    min-height: 450px;
  }

  .visual-card-main {
    right: 8px;
    width: 92%;
    min-height: 370px;
    padding: 30px 22px;
  }

  .visual-shield {
    width: 90px;
  }

  .visual-card-main h2 {
    font-size: 1.8rem;
  }

  .visual-card-small {
    width: 210px;
  }

  .card-a {
    bottom: 58px;
  }

  .card-b {
    bottom: -12px;
  }

  .trust-strip {
    margin-top: -20px;
  }

  .trust-grid {
    grid-template-columns: 1fr;
  }

  .trust-grid > div {
    padding: 20px;
  }

  .trust-grid > div::after {
    display: none;
  }

  .trust-grid > div:not(:last-child) {
    border-bottom: 1px solid var(--line);
  }

  .diagnostic-card,
  .contact-form,
  .quote-card {
    padding: 26px;
  }

  .service-grid,
  .construction-grid,
  .pest-grid,
  .why-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .construction-card,
  .pest-card,
  .why-item {
    padding: 24px;
  }

  .process-list li {
    grid-template-columns: 52px 1fr;
    gap: 16px;
    padding: 22px 18px;
  }

  .process-list li > span {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .tab-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .tab-button:nth-child(2) {
    border-right: 0;
  }

  .tab-button:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  .tab-panel {
    padding: 28px 22px;
  }

  .tech-visual {
    min-height: 210px;
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 28px;
  }

  .cta-panel .btn {
    width: 100%;
  }

  .map-card iframe {
    height: 270px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .full-field {
    grid-column: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-grid > div:last-child {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    margin-top: 36px;
  }

  .mobile-contact-bar {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1100;
    display: grid;
    grid-template-columns: 1.4fr .8fr;
    min-height: 64px;
    color: #fff;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 -10px 30px rgba(0,0,0,.12);
  }

  .mobile-contact-bar a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    text-align: center;
    font-weight: 850;
  }

  .mobile-contact-bar .mobile-call {
    flex-direction: column;
    gap: 1px;
    color: #fff;
    background: var(--red-800);
  }

  .mobile-contact-bar .mobile-call span {
    font-size: .7rem;
    letter-spacing: .06em;
    text-transform: uppercase;
  }

  .mobile-contact-bar > a:last-child {
    color: #fff;
    background: var(--green-700);
  }

  .back-to-top {
    right: 14px;
    bottom: 82px;
  }
}