:root {
  --ink: #0b1624;
  --ink-soft: #425164;
  --navy: #071522;
  --navy-2: #0d2438;
  --steel: #dfe6ec;
  --mist: #f3f6f8;
  --white: #fff;
  --orange: #1569bf;
  --orange-dark: #0d477f;
  --orange-soft: #eaf3fc;
  --green: #0b8f62;
  --line: #d8e0e7;
  --shadow-sm: 0 8px 24px rgba(7, 21, 34, .08);
  --shadow-lg: 0 24px 64px rgba(7, 21, 34, .16);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 32px;
  --container: 1180px;
}

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

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

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

a {
  color: inherit;
}

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

h1,
h2,
h3 {
  line-height: 1.14;
  letter-spacing: -.035em;
}

h1 {
  font-size: clamp(2.7rem, 6vw, 5.8rem);
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.05rem, 4vw, 3.7rem);
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
}

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

:focus-visible {
  outline: 3px solid #67a8e8;
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

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

.narrow {
  width: min(calc(100% - 40px), 820px);
  margin-inline: auto;
}

.section {
  padding: 112px 0;
}

.section-sm {
  padding: 72px 0;
}

.section-muted {
  background: var(--mist);
}

.section-dark {
  color: var(--white);
  background: var(--navy);
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 52px;
}

.section-header > :last-child {
  color: var(--ink-soft);
  font-size: 1.04rem;
}

.section-dark .section-header > :last-child,
.section-dark .section-copy {
  color: #b9c8d5;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--orange-dark);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 24px;
  height: 2px;
  background: currentColor;
  content: "";
}

.section-dark .eyebrow,
.hero .eyebrow,
.page-hero .eyebrow {
  color: #ff8f50;
}

.lead {
  color: var(--ink-soft);
  font-size: clamp(1.07rem, 1.8vw, 1.27rem);
  line-height: 1.65;
}

.kicker {
  color: var(--orange-dark);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.mt-28 {
  margin-top: 28px;
}

.mt-30 {
  margin-top: 30px;
}

.mt-32 {
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

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

.btn-primary {
  color: var(--white);
  background: var(--orange);
  box-shadow: 0 12px 30px rgba(255, 107, 26, .24);
}

.btn-primary:hover {
  background: var(--orange-dark);
}

.btn-secondary {
  color: var(--ink);
  background: var(--white);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: #9daab5;
}

.btn-ghost-light {
  color: var(--white);
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .28);
  backdrop-filter: blur(12px);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .14);
}

.btn-arrow::after {
  content: "→";
  font-size: 1.2em;
  transition: transform .2s ease;
}

.btn-arrow:hover::after {
  transform: translateX(3px);
}

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(216, 224, 231, .85);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: .98rem;
  font-weight: 900;
  letter-spacing: -.025em;
  text-decoration: none;
}

.brand img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.03;
}

.brand small {
  margin-top: 4px;
  color: #728092;
  font-size: .61rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav > a:not(.btn) {
  position: relative;
  padding: 10px 0;
  color: #324153;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}

.main-nav > a:not(.btn)::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--orange);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .2s ease;
}

.main-nav > a:not(.btn):hover::after,
.main-nav > a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta {
  min-height: 44px;
  padding: 10px 18px;
}

.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}

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

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

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

.hero {
  position: relative;
  display: grid;
  min-height: min(800px, calc(100svh - 78px));
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background-color: var(--navy);
  background-image: linear-gradient(90deg, rgba(3, 13, 22, .96) 0%, rgba(3, 13, 22, .83) 39%, rgba(3, 13, 22, .24) 68%, rgba(3, 13, 22, .12) 100%), url("../images/hero-thang-may-tai-hang.webp");
  background-position: center;
  background-size: cover;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 180px;
  background: linear-gradient(0deg, rgba(3, 13, 22, .72), transparent);
  content: "";
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 96px 0 150px;
}

.hero-copy {
  max-width: 720px;
}

.hero h1 {
  max-width: 700px;
  margin-bottom: 26px;
}

.hero h1 em {
  color: #ff8d4e;
  font-style: normal;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 34px;
  color: #d8e1e8;
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.hero-chips li {
  padding: 8px 13px;
  color: #dbe5ed;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  backdrop-filter: blur(12px);
}

.hero-note {
  max-width: 620px;
  margin-top: 24px;
  color: #9fb0be;
  font-size: .79rem;
}

.hero-facts {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  color: var(--white);
  border-top: 1px solid rgba(255, 255, 255, .22);
}

.fact {
  min-height: 116px;
  padding: 24px 28px;
  border-right: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(12px);
}

.fact:first-child {
  border-left: 1px solid rgba(255, 255, 255, .18);
}

.fact strong {
  display: block;
  margin-bottom: 2px;
  color: #ff8d4e;
  font-size: 1.55rem;
  line-height: 1.1;
}

.fact span {
  color: #c8d3dc;
  font-size: .8rem;
  font-weight: 650;
}

.trust-bar {
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  display: flex;
  min-height: 100px;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-right: 1px solid var(--line);
}

.trust-item:first-child {
  border-left: 1px solid var(--line);
}

.trust-number {
  color: var(--orange-dark);
  font-size: .73rem;
  font-weight: 900;
  letter-spacing: .1em;
}

.trust-item span:last-child {
  font-size: .88rem;
  font-weight: 750;
  line-height: 1.35;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.solution-card {
  position: relative;
  grid-column: span 6;
  min-height: 390px;
  padding: 34px;
  overflow: hidden;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.solution-card:hover {
  border-color: #b8c4ce;
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.solution-card.featured {
  grid-column: span 7;
  color: var(--white);
  background: var(--navy-2);
  border-color: var(--navy-2);
}

.solution-card.compact {
  grid-column: span 5;
}

.solution-card .card-index {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
  color: var(--orange-dark);
  background: var(--orange-soft);
  border-radius: 50%;
  font-size: .76rem;
  font-weight: 900;
}

.solution-card.featured .card-index {
  color: var(--white);
  background: var(--orange);
}

.solution-card h3 {
  max-width: 460px;
  font-size: clamp(1.65rem, 3vw, 2.45rem);
}

.solution-card p {
  max-width: 510px;
  color: var(--ink-soft);
}

.solution-card.featured p {
  color: #b8c8d5;
}

.card-link {
  position: absolute;
  bottom: 30px;
  left: 34px;
  color: var(--orange-dark);
  font-size: .85rem;
  font-weight: 850;
}

.solution-card.featured .card-link {
  color: #ff8d4e;
}

.card-watermark {
  position: absolute;
  right: -12px;
  bottom: -45px;
  color: rgba(66, 81, 100, .06);
  font-size: 9rem;
  font-weight: 950;
  letter-spacing: -.08em;
  line-height: 1;
}

.solution-card.featured .card-watermark {
  color: rgba(255, 255, 255, .05);
}

.door-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.door-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.door-card h3 {
  margin-top: 24px;
  font-size: 1.25rem;
}

.door-card p {
  color: var(--ink-soft);
  font-size: .89rem;
}

.card-detail-link,
.product-detail-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  margin-top: 14px;
  color: var(--orange-dark);
  font-size: .86rem;
  font-weight: 850;
  text-decoration: none;
}

.card-detail-link:hover,
.product-detail-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.door-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.door-meta small {
  color: #728092;
  font-weight: 650;
}

.rating {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 6px 11px;
  color: #0d477f;
  background: var(--orange-soft);
  border: 1px solid #bfd9f2;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 900;
}

.rating.neutral {
  color: #536273;
  background: #edf1f4;
  border-color: #d8e0e7;
}

.door-diagram {
  position: relative;
  display: grid;
  height: 170px;
  gap: 3px;
  align-items: stretch;
  overflow: hidden;
  padding: 14px;
  background: #d7dfe5;
  border: 7px solid #aeb9c2;
  border-bottom-width: 11px;
  border-radius: 8px 8px 3px 3px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .65);
}

.door-diagram-large {
  height: 330px;
}

.product-visual-stack {
  display: grid;
  gap: 16px;
}

.product-photo {
  overflow: hidden;
  margin: 0;
  background: #e7edf2;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.product-photo img {
  width: 100%;
  height: 390px;
  object-fit: cover;
}

.product-photo figcaption {
  padding: 12px 16px;
  color: var(--ink-soft);
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: .8rem;
}

.catalogue-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 14px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.catalogue-facts article {
  display: flex;
  min-width: 0;
  min-height: 146px;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  border-right: 1px solid var(--line);
}

.catalogue-facts article:last-child {
  border-right: 0;
}

.catalogue-facts small {
  color: var(--orange);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.catalogue-facts strong {
  margin: 8px 0 5px;
  color: var(--navy-2);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
}

.catalogue-facts span,
.catalogue-source {
  color: var(--ink-soft);
  font-size: .8rem;
}

.catalogue-source {
  margin: 0 0 32px;
}

.real-photo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.real-photo {
  overflow: hidden;
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.real-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: #dfe5e9;
}

.real-photo figcaption {
  display: grid;
  gap: 5px;
  padding: 17px 18px 19px;
}

.real-photo figcaption strong {
  color: var(--navy-2);
  font-size: .94rem;
}

.real-photo figcaption span {
  color: var(--ink-soft);
  font-size: .76rem;
}

.real-photo-grid + .scope-note {
  margin-top: 24px;
}

.product-visual-stack .door-diagram-large {
  height: 150px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.project-card {
  display: grid;
  min-height: 430px;
  grid-template-columns: minmax(190px, .82fr) minmax(0, 1.18fr);
  overflow: hidden;
  background: #0b2132;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.project-card > img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}

.project-card-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 30px;
}

.project-location {
  margin-bottom: 18px;
  color: #82bdf5;
  font-size: .75rem;
  font-weight: 850;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.project-card h3 {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.project-card dl {
  margin: 22px 0 28px;
}

.project-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.project-card dt {
  color: #91a7b8;
  font-size: .78rem;
}

.project-card dd {
  margin: 0;
  color: var(--white);
  font-size: .82rem;
  font-weight: 800;
  text-align: right;
}

.project-source {
  width: fit-content;
  margin-top: auto;
  color: #82bdf5;
  font-size: .82rem;
  font-weight: 850;
  text-decoration: none;
}

.project-source:hover {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.door-diagram::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 8px;
  background: repeating-linear-gradient(135deg, #151f28 0 8px, #f59138 8px 16px);
  content: "";
}

.door-diagram span {
  position: relative;
  background: linear-gradient(90deg, #aeb9c2, #eff3f5 48%, #bac4cc);
  border: 1px solid #8c9aa5;
}

.door-diagram span::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 45%;
  width: 1px;
  background: rgba(255, 255, 255, .8);
  content: "";
}

.door-center.four {
  grid-template-columns: repeat(4, 1fr);
}

.door-center.six {
  grid-template-columns: repeat(6, 1fr);
}

.door-up.two {
  grid-template-rows: repeat(2, 1fr);
}

.door-up.three {
  grid-template-rows: repeat(3, 1fr);
}

.door-up span::before {
  right: 0;
  bottom: auto;
  left: 0;
  width: auto;
  height: 1px;
}

.scope-note {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  padding: 20px 22px;
  color: #243d55;
  background: #f1f7fd;
  border: 1px solid #c9dff3;
  border-radius: var(--radius-sm);
  font-size: .89rem;
}

.scope-note strong {
  flex: 0 0 auto;
  color: var(--orange-dark);
}

.engineering-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 72px;
  align-items: center;
}

.engineering-list {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.engineering-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 17px 0;
  border-top: 1px solid rgba(255, 255, 255, .13);
}

.engineering-list li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, .13);
}

.engineering-list b {
  color: #ff8d4e;
  font-size: .77rem;
  letter-spacing: .08em;
}

.engineering-list span {
  color: #d4dee5;
  font-weight: 700;
}

.spec-board {
  padding: 34px;
  background: #112c42;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .24);
}

.spec-board-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.spec-board-top strong {
  letter-spacing: -.02em;
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #9bd9c1;
  font-size: .73rem;
  font-weight: 750;
}

.status-dot::before {
  width: 8px;
  height: 8px;
  background: #44cf94;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(68, 207, 148, .12);
  content: "";
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.spec-cell {
  min-height: 118px;
  padding: 18px;
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 14px;
}

.spec-cell small {
  display: block;
  margin-bottom: 8px;
  color: #8fa5b6;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.spec-cell strong {
  display: block;
  color: #edf4f8;
  line-height: 1.35;
}

.fire-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.fire-card {
  position: relative;
  min-height: 360px;
  padding: 38px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.fire-card::after {
  position: absolute;
  right: -30px;
  bottom: -70px;
  color: rgba(255, 107, 26, .06);
  font-size: 11rem;
  font-weight: 950;
  line-height: 1;
  content: attr(data-rating);
}

.fire-rating {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--orange-dark);
}

.fire-rating strong {
  font-size: 3.3rem;
  line-height: 1;
}

.fire-rating span {
  color: var(--ink-soft);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

.check-list li {
  position: relative;
  margin: 10px 0;
  padding-left: 28px;
  color: var(--ink-soft);
}

.check-list li::before {
  position: absolute;
  top: .35em;
  left: 0;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  color: var(--white);
  background: var(--green);
  border-radius: 50%;
  content: "✓";
  font-size: .68rem;
  font-weight: 900;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  counter-reset: process;
}

.process-grid.process-four {
  grid-template-columns: repeat(4, 1fr);
}

.process-step {
  position: relative;
  min-height: 250px;
  padding: 30px 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  counter-increment: process;
}

.process-step:last-child {
  border-right: 1px solid var(--line);
}

.process-step::before {
  display: block;
  margin-bottom: 52px;
  color: var(--orange-dark);
  content: "0" counter(process);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.process-step::after {
  position: absolute;
  z-index: 1;
  top: 36px;
  right: -7px;
  width: 13px;
  height: 13px;
  background: var(--orange);
  border: 3px solid var(--white);
  border-radius: 50%;
  content: "";
}

.process-step:last-child::after {
  display: none;
}

.process-step h3 {
  font-size: 1.12rem;
}

.process-step p {
  color: var(--ink-soft);
  font-size: .84rem;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.use-case {
  min-height: 210px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.use-case-icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 42px;
  place-items: center;
  color: var(--orange-dark);
  background: var(--orange-soft);
  border-radius: 12px;
  font-size: 1.3rem;
  font-weight: 900;
}

.use-case p {
  color: var(--ink-soft);
  font-size: .85rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 72px;
  align-items: start;
}

.faq-list {
  border-top: 1px solid var(--line);
}

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

.faq-list summary {
  position: relative;
  padding: 24px 46px 24px 0;
  font-weight: 800;
  line-height: 1.45;
  list-style: none;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 22px;
  right: 4px;
  color: var(--orange-dark);
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  transition: transform .2s ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 48px 24px 0;
  color: var(--ink-soft);
}

.quote-section {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.quote-section::before {
  position: absolute;
  top: -280px;
  left: -180px;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(255, 107, 26, .18), transparent 67%);
  content: "";
  pointer-events: none;
}

.quote-grid {
  position: relative;
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 78px;
  align-items: start;
}

.quote-copy {
  position: sticky;
  top: 112px;
}

.quote-copy .lead {
  color: #b9c8d5;
}

.quote-points {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.quote-points li {
  display: flex;
  gap: 12px;
  margin: 14px 0;
  color: #d1dce4;
  font-size: .9rem;
}

.quote-points li::before {
  color: #ff8d4e;
  content: "↳";
  font-weight: 900;
}

.quote-form {
  padding: 38px;
  color: var(--ink);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .3);
}

.quote-form h3 {
  margin-bottom: 26px;
  font-size: 1.45rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

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

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

.hp-field {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.form-field label {
  font-size: .79rem;
  font-weight: 800;
}

.form-field label span {
  color: var(--orange-dark);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  color: var(--ink);
  background: #f8fafb;
  border: 1px solid #cfd8df;
  border-radius: 10px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.form-field textarea {
  min-height: 112px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: var(--white);
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 26, .12);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #8996a3;
}

.checkbox-field {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  margin-top: 4px;
  color: #5f6c7a;
  font-size: .75rem;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--orange);
}

.checkbox-field a {
  color: var(--orange-dark);
  font-weight: 750;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
}

.form-hint {
  color: #758291;
  font-size: .72rem;
  line-height: 1.4;
}

.form-status {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: .8rem;
}

.form-status:empty {
  display: none;
}

.form-status.is-note {
  color: #75410f;
  background: #fff3d8;
}

.form-status.is-success {
  color: #075b3f;
  background: #def7ec;
}

.form-status.is-error {
  color: #8f1d1d;
  background: #fee7e7;
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 88px;
  color: var(--white);
  background: var(--navy);
}

.page-hero::after {
  position: absolute;
  top: -180px;
  right: -100px;
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, rgba(255, 107, 26, .18), transparent 68%);
  content: "";
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr);
  gap: 60px;
  align-items: end;
}

.page-hero h1 {
  max-width: 850px;
  margin-bottom: 0;
  font-size: clamp(2.7rem, 6vw, 5.3rem);
}

.page-hero-copy {
  color: #bdcbd6;
  font-size: 1.05rem;
}

.breadcrumbs {
  margin-bottom: 30px;
  color: #95a7b5;
  font-size: .75rem;
}

.breadcrumbs a {
  color: #d8e2e9;
  text-decoration: none;
}

.breadcrumbs span {
  margin: 0 8px;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.product-detail {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 28px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.product-detail .door-diagram {
  height: 210px;
}

.product-detail ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: .87rem;
}

.product-detail li {
  margin: 7px 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: var(--white);
}

.compare-table th,
.compare-table td {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.compare-table th:last-child,
.compare-table td:last-child {
  border-right: 0;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.compare-table thead th {
  color: var(--white);
  background: var(--navy-2);
  font-size: .78rem;
  letter-spacing: .04em;
}

.compare-table tbody th {
  width: 190px;
  color: var(--ink);
  background: #f6f8fa;
  font-size: .85rem;
}

.compare-table td {
  color: var(--ink-soft);
  font-size: .85rem;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 72px;
}

.article h2 {
  margin-top: 54px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.article h2:first-child {
  margin-top: 0;
}

.article h3 {
  margin-top: 32px;
}

.article p,
.article li {
  color: var(--ink-soft);
}

.article li {
  margin: 8px 0;
}

.sidebar-card {
  position: sticky;
  top: 106px;
  padding: 28px;
  color: var(--white);
  background: var(--navy-2);
  border-radius: var(--radius);
}

.sidebar-card p {
  color: #b9c8d5;
  font-size: .87rem;
}

.sidebar-card .btn {
  width: 100%;
  margin-top: 14px;
}

.contact-grid {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 70px;
  align-items: start;
}

.contact-card {
  padding: 30px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.contact-line {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.contact-line:last-child {
  border-bottom: 0;
}

.contact-line small {
  display: block;
  margin-bottom: 4px;
  color: #738191;
  font-weight: 750;
}

.contact-line a {
  color: var(--orange-dark);
  font-weight: 800;
  text-decoration: none;
}

.site-footer {
  padding: 72px 0 28px;
  color: #b9c8d5;
  background: #04101b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .7fr .7fr;
  gap: 60px;
  padding-bottom: 58px;
}

.footer-brand .brand {
  margin-bottom: 22px;
  color: var(--white);
}

.footer-brand .brand small {
  color: #7f94a5;
}

.footer-brand p {
  max-width: 460px;
  color: #8fa3b3;
  font-size: .88rem;
}

.footer-column h2 {
  margin-bottom: 18px;
  color: var(--white);
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.footer-column a,
.footer-column span {
  display: block;
  margin: 10px 0;
  color: #a9b9c6;
  font-size: .84rem;
  text-decoration: none;
}

.footer-column a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  color: #738897;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: .75rem;
}

.footer-bottom a {
  color: #9eb0bd;
  text-decoration: none;
}

.cookie-banner {
  position: fixed;
  z-index: 2000;
  right: 20px;
  bottom: 20px;
  width: min(calc(100% - 40px), 440px);
  padding: 20px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

.cookie-banner p {
  margin-bottom: 14px;
  color: var(--ink-soft);
  font-size: .78rem;
}

.cookie-actions {
  display: flex;
  gap: 8px;
}

.cookie-actions .btn {
  min-height: 40px;
  padding: 8px 14px;
  font-size: .75rem;
}

.mobile-dock {
  display: none;
}

/* Freight landing: image-led industrial presentation. */
.freight-page {
  background: #f4f7f9;
}

.freight-topbar {
  color: #d9e7f3;
  background: #061522;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.freight-topbar-inner {
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: .72rem;
  font-weight: 700;
}

.freight-topbar-inner > span {
  color: #9fb2c1;
  letter-spacing: .045em;
}

.freight-topbar-inner div {
  display: flex;
  align-items: center;
  gap: 24px;
}

.freight-topbar a {
  color: #dce9f2;
  text-decoration: none;
}

.freight-topbar a:hover {
  color: var(--white);
}

.freight-topbar strong {
  color: #78bcf4;
}

.freight-page .site-header {
  box-shadow: 0 8px 24px rgba(5, 19, 31, .06);
}

.freight-page .section {
  padding: 92px 0;
}

.freight-page .section-header {
  margin-bottom: 38px;
}

.freight-page .section-header h2 {
  max-width: 720px;
  font-size: clamp(2.2rem, 3.7vw, 3.35rem);
}

.freight-page .freight-hero {
  padding: 0 0 22px;
  background: #071724;
}

.freight-hero::after {
  top: auto;
  right: auto;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 130px;
  background: linear-gradient(0deg, rgba(2, 12, 20, .35), transparent);
  pointer-events: none;
}

.freight-hero .container {
  width: min(calc(100% - 40px), 1380px);
}

.freight-hero .breadcrumbs {
  position: relative;
  z-index: 3;
  margin: 0;
  padding: 18px 0;
}

.freight-hero-grid {
  position: relative;
  display: grid;
  min-height: 610px;
  align-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 4px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .25);
}

.freight-hero-media {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  margin: 0;
  background: #101c26;
}

.freight-hero-media::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(2, 12, 20, .98) 0%, rgba(2, 12, 20, .91) 31%, rgba(2, 12, 20, .55) 50%, rgba(2, 12, 20, .08) 76%);
  content: "";
}

.freight-hero-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.freight-hero-content {
  position: relative;
  z-index: 2;
  width: min(57%, 710px);
  padding: 62px 0 72px 48px;
}

.freight-hero-content h1 {
  max-width: 680px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 5.5vw, 5.15rem);
}

.freight-hero-content h1 em {
  display: block;
  color: #78bcf4;
  font-style: normal;
}

.freight-hero-content > p {
  max-width: 590px;
  margin-bottom: 30px;
  color: #c5d3dd;
  font-size: 1.06rem;
  line-height: 1.68;
}

.freight-hero-actions {
  align-items: center;
}

.freight-phone {
  display: inline-grid;
  gap: 1px;
  color: var(--white);
  text-decoration: none;
}

.freight-phone span {
  color: #8fa7b8;
  font-size: .68rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.freight-phone strong {
  font-size: 1.03rem;
}

.freight-hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 34px 0 0;
  padding: 21px 0 0;
  border-top: 1px solid rgba(255, 255, 255, .15);
  list-style: none;
}

.freight-hero-proof li {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #d4e0e8;
  font-size: .76rem;
  font-weight: 750;
}

.freight-hero-proof li::before {
  width: 7px;
  height: 7px;
  background: #f28b39;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(242, 139, 57, .13);
  content: "";
}

.freight-photo-label {
  position: absolute;
  z-index: 2;
  right: 26px;
  bottom: 22px;
  margin: 0;
  padding: 7px 11px;
  color: #e4edf3;
  background: rgba(4, 17, 28, .68);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 999px;
  font-size: .67rem;
  font-weight: 750;
  backdrop-filter: blur(10px);
}

.freight-capacity-badge {
  position: absolute;
  z-index: 2;
  right: 26px;
  bottom: 70px;
  display: grid;
  min-width: 190px;
  padding: 18px 20px;
  color: var(--ink);
  background: rgba(255, 255, 255, .94);
  border-left: 4px solid #f28b39;
  box-shadow: 0 18px 45px rgba(0, 0, 0, .22);
  backdrop-filter: blur(12px);
}

.freight-capacity-badge strong {
  color: #0c3152;
  font-size: 1.25rem;
  line-height: 1.2;
}

.freight-capacity-badge span {
  margin-top: 3px;
  color: #5c6d7b;
  font-size: .7rem;
  font-weight: 700;
}

.freight-assurance {
  position: relative;
  z-index: 2;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(7, 21, 34, .06);
}

.freight-assurance-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.freight-assurance article {
  display: flex;
  min-height: 112px;
  align-items: center;
  gap: 14px;
  padding: 22px 20px;
  border-right: 1px solid var(--line);
}

.freight-assurance article:first-child {
  border-left: 1px solid var(--line);
}

.freight-assurance article > span {
  color: #f28b39;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.freight-assurance article div {
  display: grid;
  gap: 2px;
}

.freight-assurance strong {
  color: #0c2840;
  font-size: .88rem;
  line-height: 1.35;
}

.freight-assurance small {
  color: #71808d;
  font-size: .7rem;
  line-height: 1.45;
}

.freight-config-section {
  background: #f4f7f9;
}

.freight-page .catalogue-facts {
  color: var(--white);
  background: #0b263c;
  border-color: #173c58;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(6, 25, 40, .15);
}

.freight-page .catalogue-facts article {
  min-height: 128px;
  border-color: rgba(255, 255, 255, .12);
}

.freight-page .catalogue-facts small {
  color: #75b9f0;
}

.freight-page .catalogue-facts strong {
  color: var(--white);
}

.freight-page .catalogue-facts span {
  color: #aebfcb;
}

.freight-page .catalogue-source {
  margin-bottom: 30px;
  padding-left: 2px;
}

.config-showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.config-showcase-card {
  display: flex;
  min-width: 0;
  min-height: 390px;
  flex-direction: column;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 12px 34px rgba(7, 21, 34, .08);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.config-number {
  display: block;
  margin-bottom: 28px;
  color: #9a1f2d;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
}

.config-showcase-card:hover {
  border-color: #abc1d2;
  box-shadow: 0 22px 50px rgba(7, 21, 34, .14);
  transform: translateY(-5px);
}

.config-showcase-media {
  position: relative;
  display: grid;
  height: 250px;
  flex: 0 0 auto;
  overflow: hidden;
  color: var(--white);
  background: #dce4ea;
  text-decoration: none;
}

.config-showcase-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 58%;
  transition: transform .4s ease;
}

.config-showcase-card:hover .config-showcase-media > img {
  transform: scale(1.035);
}

.config-showcase-media > span {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  padding: 6px 9px;
  color: #eaf4fb;
  background: rgba(5, 22, 35, .8);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 999px;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .035em;
  backdrop-filter: blur(8px);
}

.config-showcase-diagram {
  place-items: center;
  background-color: #0c273d;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 24px 24px;
}

.config-showcase-diagram .door-diagram {
  width: 76%;
  height: 166px;
  box-shadow: 0 20px 36px rgba(0, 0, 0, .28);
}

.config-showcase-body {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  padding: 24px 22px 25px;
}

.config-showcase-body h3 {
  margin-top: 6px;
  font-size: 1.42rem;
}

.config-showcase-body > p {
  color: var(--ink-soft);
  font-size: .84rem;
  line-height: 1.58;
}

.config-showcase-points {
  display: grid;
  gap: 8px;
  margin: 8px 0 20px;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  color: #33475a;
  font-size: .76rem;
  list-style: none;
}

.config-showcase-points li {
  position: relative;
  padding-left: 17px;
}

.config-showcase-points li::before {
  position: absolute;
  top: .62em;
  left: 0;
  width: 6px;
  height: 6px;
  background: #168665;
  border-radius: 50%;
  content: "";
}

.config-showcase-body .product-detail-link {
  margin-top: auto;
  padding-top: 4px;
}

.freight-page .table-wrap {
  box-shadow: 0 12px 34px rgba(7, 21, 34, .06);
}

.freight-page .real-photo {
  border-radius: 14px;
}

.freight-page .real-photo-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
  gap: 18px;
}

.freight-page .real-photo img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* Cửa chống cháy: trang tra cứu hồ sơ và cấu hình */
.fire-door-page .section-header h2 {
  max-width: 760px;
}

.fire-hero {
  position: relative;
  overflow: hidden;
  padding: 46px 0 88px;
  color: var(--white);
  background:
    radial-gradient(circle at 8% 12%, rgba(21, 105, 191, .28), transparent 31%),
    radial-gradient(circle at 88% 80%, rgba(255, 124, 48, .16), transparent 30%),
    linear-gradient(135deg, #06131f 0%, #0a2235 60%, #071522 100%);
}

.fire-hero::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 90%);
  pointer-events: none;
}

.fire-hero .container {
  position: relative;
  z-index: 1;
}

.fire-hero .breadcrumbs {
  margin-bottom: 44px;
}

.fire-hero .eyebrow {
  color: #84bdf4;
}

.fire-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
  gap: 74px;
  align-items: center;
}

.fire-hero-copy h1 {
  max-width: 790px;
  margin-bottom: 28px;
  font-size: clamp(3rem, 4.5vw, 4.6rem);
}

.fire-hero-copy > .lead {
  max-width: 690px;
  margin-bottom: 32px;
  color: #c6d4df;
  font-size: clamp(1.02rem, 1.5vw, 1.2rem);
}

.fire-hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 630px;
  margin-top: 44px;
  border-top: 1px solid rgba(255, 255, 255, .15);
  border-bottom: 1px solid rgba(255, 255, 255, .15);
}

.fire-hero-metrics div {
  padding: 19px 16px 20px;
  border-right: 1px solid rgba(255, 255, 255, .15);
}

.fire-hero-metrics div:first-child {
  padding-left: 0;
}

.fire-hero-metrics div:last-child {
  border-right: 0;
}

.fire-hero-metrics strong,
.fire-hero-metrics span {
  display: block;
}

.fire-hero-metrics strong {
  color: #f5f9fc;
  font-size: 1.65rem;
  line-height: 1.15;
}

.fire-hero-metrics span {
  margin-top: 5px;
  color: #91a8b9;
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.fire-hero-media {
  position: relative;
  margin: 0;
  padding: 14px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 30px;
  box-shadow: 0 34px 80px rgba(0, 0, 0, .38);
}

.fire-hero-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 20px;
}

.fire-hero-media figcaption {
  position: absolute;
  right: 28px;
  bottom: 28px;
  left: 28px;
  padding: 14px 17px;
  color: #e9f2f8;
  background: rgba(4, 18, 29, .82);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 12px;
  font-size: .77rem;
  font-weight: 750;
  backdrop-filter: blur(10px);
}

.fire-source-badge {
  position: absolute;
  top: -19px;
  right: 26px;
  display: grid;
  padding: 11px 15px;
  color: #164668;
  background: #e8f4ff;
  border: 1px solid #b9d9f4;
  border-radius: 11px;
  box-shadow: var(--shadow-sm);
  font-size: .65rem;
  line-height: 1.35;
}

.fire-source-badge b {
  color: #0b3554;
  font-size: .72rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.fire-jump {
  position: sticky;
  z-index: 50;
  top: 76px;
  overflow: hidden;
  background: rgba(255, 255, 255, .95);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(7, 21, 34, .05);
  backdrop-filter: blur(14px);
}

.fire-jump .container {
  display: flex;
  gap: 32px;
  overflow-x: auto;
  scrollbar-width: none;
}

.fire-jump .container::-webkit-scrollbar {
  display: none;
}

.fire-jump a {
  flex: 0 0 auto;
  padding: 16px 0 14px;
  color: #3f5162;
  border-bottom: 2px solid transparent;
  font-size: .75rem;
  font-weight: 850;
  letter-spacing: .025em;
  text-decoration: none;
}

.fire-jump a:hover {
  color: var(--orange-dark);
  border-bottom-color: var(--orange);
}

.fire-principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fire-principle-grid article {
  min-height: 225px;
  padding: 28px 25px;
  border-right: 1px solid var(--line);
}

.fire-principle-grid article:last-child {
  border-right: 0;
}

.fire-principle-grid article > span {
  display: block;
  margin-bottom: 42px;
  color: var(--orange-dark);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.fire-principle-grid h3 {
  font-size: 1.18rem;
}

.fire-principle-grid p {
  color: var(--ink-soft);
  font-size: .84rem;
}

.fire-model-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fire-model-card {
  position: relative;
  display: flex;
  min-height: 480px;
  flex-direction: column;
  padding: 30px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 38px rgba(7, 21, 34, .07);
}

.fire-model-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: #8bb8df;
  content: "";
}

.fire-model-card.featured::before {
  background: var(--orange);
}

.fire-model-card.e45-report::before {
  background: #327fbd;
}

.fire-model-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 30px;
}

.fire-model-top small {
  color: #68798a;
  font-size: .64rem;
  font-weight: 750;
  text-align: right;
}

.fire-model-rating {
  display: inline-flex;
  padding: 9px 11px;
  color: var(--white);
  background: var(--navy-2);
  border-radius: 8px;
  font-size: .82rem;
  font-weight: 950;
  letter-spacing: .06em;
}

.fire-model-code {
  margin-bottom: 7px;
  color: var(--orange-dark);
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .06em;
}

.fire-model-card h3 {
  margin-bottom: 24px;
  font-size: 1.55rem;
}

.fire-dimensions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 24px;
}

.fire-dimensions div {
  padding: 15px 13px;
  background: #f3f7fa;
  border: 1px solid #e1e8ee;
  border-radius: 11px;
}

.fire-dimensions small,
.fire-dimensions strong {
  display: block;
}

.fire-dimensions small {
  margin-bottom: 5px;
  color: #6c7c8c;
  font-size: .62rem;
  font-weight: 750;
}

.fire-dimensions strong {
  color: #162b3d;
  font-size: .95rem;
  line-height: 1.3;
}

.fire-model-card > p:not(.fire-model-code) {
  color: var(--ink-soft);
  font-size: .83rem;
}

.fire-document-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  padding-top: 20px;
  color: var(--orange-dark);
  border-top: 1px solid var(--line);
  font-size: .8rem;
  font-weight: 900;
  text-decoration: none;
}

.fire-document-link:hover {
  color: var(--orange);
}

.fire-document-link span {
  font-size: 1.05rem;
}

.fire-document-note {
  display: block;
  margin-top: auto;
  padding-top: 20px;
  color: #56697a;
  border-top: 1px solid var(--line);
  font-size: .76rem;
  line-height: 1.65;
}

.fire-document-note b {
  color: #18364d;
}

.fire-test-detail {
  margin-top: 24px;
  padding: 34px;
  background: #edf5fb;
  border: 1px solid #cfe0ed;
  border-radius: var(--radius);
}

.fire-test-detail-head {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr);
  gap: 10px 42px;
  align-items: end;
  margin-bottom: 26px;
}

.fire-test-detail-head .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.fire-test-detail-head h3 {
  margin: 0;
  font-size: 1.8rem;
}

.fire-test-detail-head p {
  margin: 0;
  color: var(--ink-soft);
  font-size: .84rem;
}

.fire-test-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.fire-test-facts article {
  padding: 19px;
  background: rgba(255, 255, 255, .8);
  border: 1px solid #d7e4ee;
  border-radius: 12px;
}

.fire-test-facts small,
.fire-test-facts strong {
  display: block;
}

.fire-test-facts small {
  margin-bottom: 8px;
  color: #52728b;
  font-size: .64rem;
  font-weight: 850;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.fire-test-facts strong {
  color: #102c42;
  font-size: .91rem;
  line-height: 1.45;
}

.fire-test-facts p {
  margin: 7px 0 0;
  color: #5a6c7b;
  font-size: .75rem;
}

.fire-test-result {
  margin: 12px 0 0;
  padding: 16px 18px;
  color: #3d5364;
  background: #fff;
  border-left: 4px solid #327fbd;
  border-radius: 8px;
  font-size: .79rem;
}

.fire-scope-panel {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr);
  gap: 46px;
  margin-top: 24px;
  padding: 38px;
  color: var(--white);
  background: var(--navy-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.fire-scope-heading > span {
  display: inline-block;
  margin-bottom: 22px;
  color: #7fb9ee;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

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

.fire-scope-heading p {
  color: #aebdca;
  font-size: .88rem;
}

.fire-condition-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fire-condition-list li {
  padding: 14px 0;
  color: #becbd5;
  border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: .78rem;
}

.fire-condition-list li:nth-child(-n + 2) {
  border-top: 0;
}

.fire-condition-list b {
  color: #f1f6f9;
}

.fire-review-note {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  margin-top: 16px;
  padding: 19px 22px;
  color: #5b4218;
  background: #fff7e7;
  border: 1px solid #ead8ad;
  border-radius: 13px;
  font-size: .79rem;
}

.fire-review-note strong {
  color: #4c350f;
}

.fire-review-note p {
  margin: 0;
}

.fire-status-table .rating {
  white-space: nowrap;
}

.fire-status-table td {
  color: var(--ink-soft);
  font-size: .84rem;
}

.fire-legal-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.fire-legal-panel > div {
  min-height: 210px;
  padding: 26px 24px;
  border-right: 1px solid var(--line);
}

.fire-legal-panel > div:last-child {
  border-right: 0;
}

.fire-legal-panel small,
.fire-legal-panel strong,
.fire-legal-panel span {
  display: block;
}

.fire-legal-panel small {
  margin-bottom: 25px;
  color: var(--orange-dark);
  font-size: .65rem;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.fire-legal-panel strong {
  color: #142c3f;
  font-size: 1.02rem;
  line-height: 1.45;
}

.fire-legal-panel span {
  margin-top: 9px;
  color: var(--ink-soft);
  font-size: .76rem;
}

.fire-private-note {
  margin: 14px 0 0;
  color: #657687;
  font-size: .75rem;
}

.fire-criteria-grid {
  display: grid;
  gap: 12px;
}

.fire-criteria-grid article {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 22px;
  align-items: center;
  padding: 24px;
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: 16px;
}

.fire-criteria-grid article > span {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  color: #dceeff;
  background: rgba(21, 105, 191, .22);
  border: 1px solid rgba(127, 185, 238, .32);
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 950;
}

.fire-criteria-grid h3 {
  margin-bottom: 6px;
  color: #eef5fa;
}

.fire-criteria-grid article p {
  color: #b7c6d2;
  font-size: .82rem;
}

.fire-criteria-warning {
  margin: 3px 0 0;
  padding: 18px 20px;
  color: #dce8ef;
  background: rgba(255, 143, 80, .1);
  border: 1px solid rgba(255, 143, 80, .25);
  border-radius: 13px;
  font-size: .8rem;
}

.fire-criteria-warning b {
  color: #ffab7c;
}

.fire-evidence-grid {
  display: grid;
  grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr);
  gap: 20px;
  align-items: stretch;
}

.fire-evidence-photo,
.fire-component-panel {
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.fire-evidence-photo {
  position: relative;
  min-height: 720px;
}

.fire-evidence-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fire-evidence-photo figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  padding: 16px 18px;
  color: var(--white);
  background: rgba(6, 20, 31, .84);
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: 13px;
  backdrop-filter: blur(10px);
}

.fire-evidence-photo figcaption b,
.fire-evidence-photo figcaption span {
  display: block;
}

.fire-evidence-photo figcaption span {
  margin-top: 4px;
  color: #c4d1da;
  font-size: .72rem;
}

.fire-component-panel {
  display: grid;
  grid-template-rows: 270px 1fr;
}

.fire-component-panel > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fire-component-copy {
  padding: 30px 34px 24px;
}

.fire-component-list {
  margin-top: 20px;
}

.fire-component-list article {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.fire-component-list article > b {
  color: var(--orange-dark);
  font-size: .68rem;
  letter-spacing: .06em;
}

.fire-component-list h3 {
  margin-bottom: 5px;
  font-size: 1rem;
}

.fire-component-list p {
  color: var(--ink-soft);
  font-size: .78rem;
}

.fire-survey-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.fire-survey-grid article {
  min-height: 200px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 15px;
}

.fire-survey-grid small {
  display: block;
  margin-bottom: 35px;
  color: var(--orange-dark);
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.fire-survey-grid h3 {
  font-size: 1.05rem;
}

.fire-survey-grid p {
  color: var(--ink-soft);
  font-size: .79rem;
}

.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1080px) {
  .main-nav {
    gap: 18px;
  }

  .main-nav > a:not(.btn) {
    font-size: .82rem;
  }

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

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

  .catalogue-facts,
  .real-photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalogue-facts article:nth-child(2) {
    border-right: 0;
  }

  .catalogue-facts article:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .process-step:nth-child(3) {
    border-right: 1px solid var(--line);
  }

  .process-step:nth-child(n + 4) {
    border-top: 0;
  }
}

@media (max-width: 900px) {
  html {
    scroll-padding-top: 76px;
  }

  .section {
    padding: 86px 0;
  }

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

  .menu-button {
    display: block;
  }

  .main-nav {
    position: fixed;
    z-index: 999;
    top: 72px;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 26px 20px 100px;
    overflow-y: auto;
    background: var(--white);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform .25s ease, visibility .25s ease;
  }

  .main-nav[data-open="true"] {
    transform: translateX(0);
    visibility: visible;
  }

  .main-nav > a:not(.btn) {
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
  }

  .main-nav > a:not(.btn)::after {
    display: none;
  }

  .main-nav .btn {
    margin-top: 24px;
  }

  .hero {
    min-height: 830px;
    background-image: linear-gradient(90deg, rgba(3, 13, 22, .96) 0%, rgba(3, 13, 22, .79) 60%, rgba(3, 13, 22, .35) 100%), url("../images/hero-thang-may-tai-hang.webp");
    background-position: 58% center;
  }

  .hero-inner {
    padding: 78px 0 260px;
  }

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

  .fact {
    min-height: 88px;
    padding: 17px 20px;
    border-top: 1px solid rgba(255, 255, 255, .14);
  }

  .fact strong {
    font-size: 1.25rem;
  }

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

  .trust-item:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .section-header,
  .engineering-grid,
  .faq-grid,
  .quote-grid,
  .page-hero-inner,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section-header {
    gap: 10px;
  }

  .engineering-grid,
  .quote-grid,
  .contact-grid {
    gap: 48px;
  }

  .quote-copy {
    position: static;
  }

  .content-layout {
    grid-template-columns: 1fr;
  }

  .sidebar-card {
    position: static;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  body {
    padding-bottom: 66px;
  }

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

  .section {
    padding: 68px 0;
  }

  .section-sm {
    padding: 50px 0;
  }

  .brand {
    font-size: .85rem;
  }

  .brand img {
    width: 46px;
    height: 46px;
  }

  .brand small {
    font-size: .55rem;
  }

  .hero {
    min-height: 800px;
    align-items: start;
    background-image: linear-gradient(180deg, rgba(3, 13, 22, .98) 0%, rgba(3, 13, 22, .85) 55%, rgba(3, 13, 22, .53) 100%), url("../images/hero-thang-may-tai-hang.webp");
    background-position: 68% center;
  }

  .hero-inner {
    padding-top: 62px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 13vw, 4.3rem);
  }

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

  .hero .button-row .btn {
    width: 100%;
  }

  .hero-chips li:nth-child(3) {
    display: none;
  }

  .facts-grid {
    width: 100%;
  }

  .fact {
    padding: 14px;
  }

  .fact span {
    font-size: .69rem;
  }

  .trust-grid,
  .door-grid,
  .fire-grid,
  .project-grid,
  .catalogue-facts,
  .real-photo-grid,
  .use-case-grid,
  .spec-grid,
  .form-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .catalogue-facts article,
  .catalogue-facts article:nth-child(2) {
    min-height: 120px;
    border-top: 1px solid var(--line);
    border-right: 0;
  }

  .catalogue-facts article:first-child {
    border-top: 0;
  }

  .trust-item,
  .trust-item:nth-child(3) {
    min-height: 70px;
    border-right: 1px solid var(--line);
    border-left: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .solution-grid {
    display: block;
  }

  .solution-card,
  .solution-card.featured,
  .solution-card.compact {
    display: block;
    min-height: 360px;
    margin-bottom: 16px;
    padding: 28px;
  }

  .card-link {
    left: 28px;
  }

  .scope-note {
    flex-direction: column;
    gap: 4px;
  }

  .spec-board,
  .quote-form,
  .fire-card {
    padding: 25px;
  }

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

  .process-grid.process-four {
    grid-template-columns: 1fr;
  }

  .process-step,
  .process-step:nth-child(n + 4) {
    min-height: 170px;
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .process-step:last-child {
    border-bottom: 1px solid var(--line);
  }

  .process-step::before {
    margin-bottom: 24px;
  }

  .process-step::after {
    display: none;
  }

  .product-detail {
    grid-template-columns: 1fr;
  }

  .product-detail .door-diagram {
    height: 180px;
  }

  .door-diagram-large {
    height: 230px;
  }

  .product-photo img {
    height: 300px;
  }

  .project-card {
    grid-template-columns: 1fr;
  }

  .project-card > img {
    height: 300px;
    min-height: 0;
  }

  .product-visual-stack .door-diagram-large {
    height: 130px;
  }

  .page-hero {
    padding: 76px 0 64px;
  }

  .page-hero-inner {
    gap: 28px;
  }

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

  .form-actions {
    align-items: stretch;
    flex-direction: column;
  }

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

  .footer-brand,
  .footer-column {
    grid-column: auto;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .cookie-banner {
    right: 10px;
    bottom: 76px;
    width: calc(100% - 20px);
  }

  .mobile-dock {
    position: fixed;
    z-index: 1500;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    min-height: 66px;
    padding-bottom: env(safe-area-inset-bottom);
    color: var(--white);
    background: var(--navy);
    box-shadow: 0 -6px 24px rgba(7, 21, 34, .2);
  }

  .mobile-dock a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 5px;
    border-right: 1px solid rgba(255, 255, 255, .13);
    font-size: .72rem;
    font-weight: 800;
    text-align: center;
    text-decoration: none;
  }

  .mobile-dock a:last-child {
    color: var(--white);
    background: var(--orange);
    border-right: 0;
  }

}

@media (max-width: 1080px) {
  .freight-hero-grid {
    min-height: 570px;
  }

  .freight-hero-content {
    width: min(64%, 650px);
    padding-left: 36px;
  }

  .config-showcase-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .config-showcase-card {
    min-height: 570px;
  }
}

@media (max-width: 900px) {
  .freight-topbar-inner > span {
    display: none;
  }

  .freight-topbar-inner div {
    width: 100%;
    justify-content: center;
  }

  .freight-hero-grid {
    min-height: 690px;
    align-items: start;
  }

  .freight-hero-media::after {
    background: linear-gradient(180deg, rgba(2, 12, 20, .98) 0%, rgba(2, 12, 20, .89) 42%, rgba(2, 12, 20, .28) 72%, rgba(2, 12, 20, .08) 100%);
  }

  .freight-hero-media > img {
    object-position: 63% center;
  }

  .freight-hero-content {
    width: min(100%, 680px);
    padding: 46px 34px 300px;
  }

  .freight-hero-content h1 {
    font-size: clamp(3rem, 8.5vw, 4.7rem);
  }

  .freight-capacity-badge {
    right: 20px;
    bottom: 64px;
  }

  .freight-photo-label {
    right: 20px;
    bottom: 18px;
  }

  .freight-assurance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .freight-assurance article:nth-child(2) {
    border-right: 1px solid var(--line);
  }

  .freight-assurance article:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  .freight-topbar-inner {
    min-height: 34px;
  }

  .freight-topbar-inner div {
    justify-content: space-between;
    gap: 12px;
    font-size: .65rem;
  }

  .freight-page .section {
    padding: 62px 0;
  }

  .freight-page .section-header {
    margin-bottom: 28px;
  }

  .freight-page .section-header h2 {
    font-size: 2.15rem;
  }

  .freight-page .freight-hero {
    padding: 0;
  }

  .freight-hero .container {
    width: 100%;
  }

  .freight-hero .breadcrumbs {
    padding: 12px 14px;
  }

  .freight-hero-grid {
    min-height: 720px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .freight-hero-media > img {
    object-position: 66% center;
  }

  .freight-hero-content {
    padding: 34px 14px 305px;
  }

  .freight-hero-content h1 {
    margin-bottom: 18px;
    font-size: clamp(2.55rem, 12vw, 3.4rem);
  }

  .freight-hero-content > p {
    margin-bottom: 22px;
    font-size: .94rem;
    line-height: 1.58;
  }

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

  .freight-phone {
    display: none;
  }

  .freight-hero-proof {
    gap: 8px 14px;
    margin-top: 22px;
    padding-top: 16px;
  }

  .freight-hero-proof li {
    font-size: .67rem;
  }

  .freight-capacity-badge {
    right: 14px;
    bottom: 58px;
    min-width: 168px;
    padding: 14px 16px;
  }

  .freight-capacity-badge strong {
    font-size: 1.08rem;
  }

  .freight-photo-label {
    right: 14px;
    bottom: 14px;
  }

  .freight-assurance article {
    min-height: 106px;
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
    padding: 16px 13px;
  }

  .freight-assurance article:first-child,
  .freight-assurance article:nth-child(3) {
    border-left: 0;
  }

  .freight-assurance article:nth-child(2n) {
    border-right: 0;
  }

  .freight-assurance strong {
    font-size: .78rem;
  }

  .freight-assurance small {
    font-size: .64rem;
  }

  .freight-page .catalogue-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .freight-page .catalogue-facts article,
  .freight-page .catalogue-facts article:nth-child(2) {
    min-height: 122px;
    padding: 17px 14px;
    border-top: 0;
    border-right: 1px solid rgba(255, 255, 255, .12);
  }

  .freight-page .catalogue-facts article:nth-child(2n) {
    border-right: 0;
  }

  .freight-page .catalogue-facts article:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, .12);
  }

  .freight-page .catalogue-facts strong {
    font-size: 1.15rem;
  }

  .config-showcase-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .config-showcase-card {
    min-height: 0;
  }

  .config-showcase-media {
    height: 280px;
  }

  .config-showcase-body {
    padding: 23px 20px 25px;
  }
}

@media (max-width: 900px) {
  .fire-hero-grid,
  .fire-scope-panel,
  .fire-evidence-grid {
    grid-template-columns: 1fr;
  }

  .fire-hero-grid {
    gap: 58px;
  }

  .fire-hero-media {
    width: min(100%, 680px);
  }

  .fire-principle-grid,
  .fire-survey-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fire-principle-grid article:nth-child(2) {
    border-right: 0;
  }

  .fire-principle-grid article:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .fire-model-grid {
    grid-template-columns: 1fr;
  }

  .fire-model-card {
    min-height: 0;
  }

  .fire-test-detail-head {
    grid-template-columns: 1fr;
  }

  .fire-test-detail-head .eyebrow {
    grid-column: auto;
  }

  .fire-test-facts,
  .fire-legal-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fire-legal-panel > div:nth-child(2) {
    border-right: 0;
  }

  .fire-legal-panel > div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .fire-scope-panel {
    gap: 24px;
  }

  .fire-evidence-photo {
    min-height: 620px;
  }
}

@media (max-width: 680px) {
  .fire-door-page .section {
    padding: 66px 0;
  }

  .fire-door-page .section-header {
    margin-bottom: 30px;
  }

  .fire-hero {
    padding: 28px 0 60px;
  }

  .fire-hero .breadcrumbs {
    margin-bottom: 32px;
  }

  .fire-hero-grid {
    gap: 48px;
  }

  .fire-hero-copy h1 {
    margin-bottom: 22px;
    font-size: clamp(2.35rem, 11vw, 3.2rem);
  }

  .fire-hero-copy .button-row .btn {
    width: 100%;
  }

  .fire-hero-metrics {
    margin-top: 32px;
  }

  .fire-hero-metrics div {
    padding: 15px 9px;
  }

  .fire-hero-metrics div:first-child {
    padding-left: 0;
  }

  .fire-hero-metrics strong {
    font-size: 1.3rem;
  }

  .fire-hero-metrics span {
    font-size: .58rem;
  }

  .fire-hero-media {
    padding: 8px;
    border-radius: 20px;
  }

  .fire-hero-media img {
    border-radius: 14px;
  }

  .fire-hero-media figcaption {
    right: 17px;
    bottom: 17px;
    left: 17px;
  }

  .fire-source-badge {
    top: -24px;
    right: 14px;
  }

  .fire-jump {
    top: 69px;
  }

  .fire-jump .container {
    gap: 24px;
  }

  .fire-principle-grid,
  .fire-survey-grid,
  .fire-condition-list {
    grid-template-columns: 1fr;
  }

  .fire-principle-grid article,
  .fire-principle-grid article:nth-child(2) {
    min-height: 180px;
    border-top: 1px solid var(--line);
    border-right: 0;
  }

  .fire-principle-grid article:first-child {
    border-top: 0;
  }

  .fire-principle-grid article > span {
    margin-bottom: 28px;
  }

  .fire-model-card {
    padding: 25px 22px;
  }

  .fire-test-detail {
    padding: 25px 20px;
  }

  .fire-test-facts,
  .fire-legal-panel {
    grid-template-columns: 1fr;
  }

  .fire-legal-panel > div,
  .fire-legal-panel > div:nth-child(2) {
    min-height: 0;
    border-top: 1px solid var(--line);
    border-right: 0;
  }

  .fire-legal-panel > div:first-child {
    border-top: 0;
  }

  .fire-model-top {
    align-items: flex-start;
  }

  .fire-dimensions {
    grid-template-columns: 1fr;
  }

  .fire-scope-panel {
    padding: 25px 22px;
  }

  .fire-condition-list li:nth-child(2) {
    border-top: 1px solid rgba(255, 255, 255, .12);
  }

  .fire-review-note {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .fire-criteria-grid article {
    grid-template-columns: 62px 1fr;
    gap: 15px;
    padding: 20px 17px;
  }

  .fire-criteria-grid article > span {
    width: 56px;
    height: 56px;
    font-size: 1rem;
  }

  .fire-evidence-photo {
    min-height: 500px;
  }

  .fire-component-panel {
    grid-template-rows: 200px 1fr;
  }

  .fire-component-copy {
    padding: 26px 21px 18px;
  }

  .fire-survey-grid article {
    min-height: 165px;
  }

  .fire-survey-grid small {
    margin-bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .site-header,
  .mobile-dock,
  .cookie-banner,
  .button-row,
  .quote-section {
    display: none !important;
  }

  body {
    color: #000;
    padding: 0;
  }

  .section,
  .page-hero {
    padding: 30px 0;
  }

  .page-hero,
  .section-dark {
    color: #000;
    background: #fff;
  }
}