:root {
  --blue: #071b2d;
  --blue-2: #0e2e4a;
  --blue-3: #1e6f96;
  --orange: #f08a24;
  --orange-dark: #cf6f12;
  --bg: #eef3f7;
  --bg-2: #dfe9f1;
  --text: #182836;
  --muted: #66788a;
  --line: #cbd8e3;
  --white: #ffffff;
  --success: #188852;
  --radius: 12px;
  --shadow: 0 18px 44px rgba(7, 27, 45, 0.14);
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  background: var(--bg);
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--text);
  background: var(--bg);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

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

button {
  cursor: pointer;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section {
  position: relative;
  overflow: clip;
  padding: 76px 0;
  background: var(--white);
}

.section-anchor {
  scroll-margin-top: 92px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 32px;
}

.section-heading span,
.section-label,
.eyebrow,
.card-kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  color: var(--blue-3);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading h2,
.service-area-card h2 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  line-height: 1.2;
}

.section-heading p {
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 10px 18px rgba(242, 140, 40, 0.22);
}

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

.btn-secondary {
  background: var(--blue);
  color: var(--white);
}

.btn-ghost {
  background: var(--white);
  color: var(--blue);
  border-color: var(--line);
}

.text-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  margin-top: auto;
  padding: 0;
  border: 0;
  color: var(--blue-3);
  background: transparent;
  font-weight: 800;
}

.text-link::after {
  content: "→";
  margin-left: 6px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 27, 45, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.site-header.is-scrolled {
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.header-inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  gap: 18px;
}

.brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  max-width: 240px;
  min-width: 0;
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border-radius: 10px;
  background: var(--orange);
  color: #1a2630;
  font-size: 1.25rem;
  font-weight: 900;
}

.brand-words {
  display: grid;
  min-width: 0;
  line-height: 1.15;
}

.brand-words strong {
  overflow: hidden;
  font-size: 1.05rem;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-words small {
  color: #8fc6e0;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 10px 11px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.93rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.header-call {
  display: grid;
  flex: 0 0 178px;
  min-height: 48px;
  place-items: center;
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--orange);
  color: #111827;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

.header-call span,
.header-call small {
  font-size: 0.9rem;
  font-weight: 900;
  line-height: 1.1;
}

.header-call small {
  opacity: 0.95;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: var(--white);
}

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - var(--header-height));
  padding: 96px 0 74px;
  overflow: hidden;
  background:
    linear-gradient(
      110deg,
      rgba(7, 27, 45, 0.96) 0%,
      rgba(7, 27, 45, 0.88) 45%,
      rgba(7, 27, 45, 0.7) 100%
    ),
    url("../images/optimized/hero-background-campus.webp") center / cover;
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -8% -22% 38%;
  z-index: -1;
  height: 430px;
  background: radial-gradient(
    circle,
    rgba(240, 138, 36, 0.26),
    transparent 66%
  );
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, black, transparent 78%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(430px, 1.05fr);
  gap: 54px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 18px;
  color: var(--white);
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 760px;
  margin: 0 0 28px;
  color: #d3e2ec;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero .eyebrow {
  color: #8fd0ec;
}

.hero .btn-secondary {
  background: var(--white);
  color: var(--blue);
}

.hero .btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.26);
}

.hero-media {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 0.45fr;
  gap: 14px;
  min-width: 0;
}

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

.hero-main-photo,
.hero-photo-stack {
  min-width: 0;
}

.hero-main-photo {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.36);
}

.hero-main-photo img {
  aspect-ratio: 4 / 3.35;
}

.hero-photo-stack {
  display: grid;
  gap: 14px;
}

.hero-photo-stack img {
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
}

.hero-main-photo figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 2px;
  max-width: calc(100% - 36px);
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(7, 27, 45, 0.9);
  color: var(--white);
}

.hero-main-photo span {
  color: #c8d8e5;
  font-size: 0.88rem;
}

.quick-contact {
  padding: 54px 0 42px;
  background: var(--bg);
}

.capability-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  gap: 28px;
  align-items: start;
  margin-bottom: 18px;
  padding: 30px;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(7, 27, 45, 0.98), rgba(14, 46, 74, 0.96)),
    radial-gradient(circle at 0 0, rgba(240, 138, 36, 0.16), transparent 36%);
  box-shadow: 0 18px 44px rgba(7, 27, 45, 0.14);
}

.capability-copy h2 {
  max-width: 680px;
  margin: 0 0 18px;
  color: var(--white);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.2;
}

.capability-copy h2 span {
  white-space: nowrap;
}

.capability-copy p {
  max-width: 660px;
  margin: 0 0 20px;
  color: #d4e2eb;
}

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

.capability-metrics div {
  min-height: 88px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.08);
}

.capability-metrics strong {
  display: block;
  color: var(--orange);
  font-size: 1.35rem;
  line-height: 1.2;
}

.capability-metrics span {
  color: #c9dce8;
  font-size: 0.92rem;
}

.capability-certs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.capability-certs li {
  position: relative;
  min-height: 72px;
  padding: 18px 18px 18px 46px;
  border: 1px solid rgba(11, 46, 74, 0.12);
  border-radius: 8px;
  background: var(--white);
  color: var(--blue);
  font-weight: 900;
}

.capability-certs li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--success);
}

.contact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.strip-item {
  display: grid;
  gap: 4px;
  min-height: 92px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: #102f4a;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
  color: var(--white);
  text-align: left;
  text-decoration: none;
}

button.strip-item {
  width: 100%;
}

.strip-label {
  color: #9dc5d8;
  font-size: 0.88rem;
}

.strip-call {
  background: var(--orange);
  color: #111827;
}

.strip-call .strip-label {
  color: rgba(17, 24, 39, 0.72);
}

.phone-stack {
  display: grid;
  gap: 2px;
}

.phone-stack span {
  display: block;
  font-weight: 900;
}

/* Cards and grids */
.pain-points,
.products,
.strength,
.process,
.faq {
  background:
    linear-gradient(
      180deg,
      rgba(238, 243, 247, 0.96),
      rgba(238, 243, 247, 0.96)
    ),
    radial-gradient(circle at 12% 0, rgba(30, 111, 150, 0.16), transparent 34%);
}

.pain-grid,
.industry-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.pain-grid,
.industry-grid {
  counter-reset: card;
}

.pain-card,
.industry-card,
.case-card,
.contact-panel,
.quote-form,
.quote-summary,
.cert-wall div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.pain-card,
.industry-card,
.case-card {
  position: relative;
  padding: 22px;
  box-shadow: 0 12px 30px rgba(7, 27, 45, 0.06);
}

.pain-card {
  padding-top: 58px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), #ffffff),
    linear-gradient(135deg, rgba(30, 111, 150, 0.12), transparent 58%);
}

.pain-card::before,
.industry-card::before {
  counter-increment: card;
  content: counter(card, decimal-leading-zero);
  position: absolute;
  left: 22px;
  top: 18px;
  display: grid;
  width: 36px;
  height: 32px;
  place-items: center;
  border-radius: 8px;
  background: var(--blue);
  color: var(--orange);
  font-size: 0.86rem;
  font-weight: 900;
  line-height: 1;
}

.pain-card h3,
.industry-card h3,
.case-card h3 {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 1.08rem;
}

.pain-card p,
.industry-card p,
.case-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

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

.solutions {
  color: #dce8f0;
  background:
    linear-gradient(135deg, rgba(7, 27, 45, 0.95), rgba(11, 46, 74, 0.9)),
    url("../images/optimized/strength-pipeline.webp") center / cover;
}

.solutions::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 18%,
    #000 82%,
    transparent
  );
  pointer-events: none;
}

.solutions .section-heading h2,
.cases .section-heading h2 {
  color: var(--white);
}

.solutions .section-heading span,
.cases .section-heading span {
  color: #ffb35e;
}

.solution-card,
.product-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 32px rgba(7, 27, 45, 0.08);
}

.solutions .solution-card {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(8, 28, 46, 0.86);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(10px);
}

.solution-card > img,
.product-card > img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--bg-2);
}

.solutions .solution-card > img {
  aspect-ratio: 16 / 10;
  filter: contrast(1.08) saturate(0.95);
}

.card-body,
.product-card > div {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.solution-card h3,
.product-card h3 {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 1.22rem;
}

.solutions .solution-card h3 {
  color: var(--white);
}

.solution-card p,
.product-card p {
  margin: 0 0 8px;
  color: var(--muted);
}

.solutions .solution-card p,
.solutions .solution-card dd {
  color: #c7d8e4;
}

.solution-card dl {
  display: grid;
  gap: 10px;
  margin: 0 0 14px;
}

.solution-card dl div {
  display: grid;
  gap: 2px;
}

.solution-card dt {
  color: var(--blue);
  font-weight: 900;
}

.solutions .solution-card dt {
  color: #ffb35e;
}

.solution-card dd {
  margin: 0;
  color: var(--muted);
}

/* Products */
.product-tabs {
  display: flex;
  gap: 10px;
  max-width: 100%;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.products .product-tabs {
  width: fit-content;
  max-width: 100%;
  padding: 10px;
  border: 1px solid rgba(7, 27, 45, 0.12);
  border-radius: 12px;
  background: #102235;
  box-shadow: 0 16px 38px rgba(7, 27, 45, 0.12);
}

.tab-btn {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--blue);
  font-weight: 900;
  white-space: nowrap;
}

.products .tab-btn {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: #d8e6ef;
}

.tab-btn.active {
  border-color: var(--blue-3);
  background: var(--blue-3);
  color: var(--white);
}

.products .tab-btn.active {
  border-color: var(--orange);
  background: var(--orange);
  color: #111827;
}

.product-grid {
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.product-grid.active {
  display: grid;
}

.product-card {
  position: relative;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  z-index: 1;
  height: 4px;
  background: linear-gradient(90deg, var(--orange), var(--blue-3));
}

.product-card > img {
  aspect-ratio: 16 / 10.5;
}

.product-card h3 small {
  color: var(--blue-3);
  font-size: 0.85rem;
}

.product-card button {
  width: fit-content;
  margin-top: auto;
  padding: 9px 14px;
  border: 0;
  border-radius: 7px;
  background: var(--blue-3);
  color: var(--white);
  font-weight: 800;
}

.product-card button:hover {
  background: var(--blue);
}

/* Industries and cases */
.industries {
  background:
    linear-gradient(180deg, #ffffff, #f7fafc 56%, #ffffff),
    radial-gradient(
      circle at 85% 10%,
      rgba(240, 138, 36, 0.12),
      transparent 32%
    );
}

.industry-card {
  min-height: 190px;
  padding-top: 62px;
  border-color: rgba(11, 46, 74, 0.12);
  background: linear-gradient(180deg, #ffffff, #f8fbfd);
}

.industry-card::before {
  background: #102235;
}

.industry-card::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 50px;
  height: 1px;
  background: linear-gradient(90deg, rgba(240, 138, 36, 0.7), transparent);
}

.cases {
  background:
    linear-gradient(180deg, rgba(7, 27, 45, 0.97), rgba(12, 37, 59, 0.96)),
    url("../images/optimized/strength-cylinder-truck.webp") center / cover;
}

.case-grid {
  gap: 16px;
}

.cases .case-card {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.075);
  color: #d9e5ed;
  box-shadow: none;
  backdrop-filter: blur(10px);
}

.cases .case-card h3 {
  color: var(--white);
}

.cases .case-card p {
  color: #c7d7e2;
}

.cases .case-card::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 3px;
  border-radius: 999px;
  background: var(--orange);
}

/* Strength */
.strength-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 28px;
  align-items: start;
  padding: 30px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(7, 27, 45, 0.97), rgba(14, 46, 74, 0.94)),
    radial-gradient(circle at 0 0, rgba(240, 138, 36, 0.18), transparent 34%);
  box-shadow: 0 24px 56px rgba(7, 27, 45, 0.14);
}

.strength-copy h3 {
  margin: 0 0 12px;
  color: var(--white);
  font-size: 1.55rem;
}

.strength-copy p {
  color: #c8d8e4;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.metric-grid div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
}

.metric-grid strong {
  display: block;
  color: var(--orange);
  font-size: 1.25rem;
}

.metric-grid span {
  color: #c8d8e4;
  font-size: 0.9rem;
}

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

.cert-wall div {
  position: relative;
  min-height: 86px;
  padding: 18px 18px 18px 44px;
  color: var(--blue);
  font-weight: 900;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.14);
}

.cert-wall div::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--success);
}

.strength-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.strength-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 34px rgba(7, 27, 45, 0.12);
}

.strength-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.strength-gallery figcaption {
  padding: 12px 14px;
  color: var(--blue);
  font-weight: 900;
}

/* Process and service area */
.process-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.process-list li {
  position: relative;
  min-height: 140px;
  padding: 46px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #f8fbfd);
  box-shadow: 0 12px 28px rgba(7, 27, 45, 0.06);
}

.process-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  background: var(--blue);
  color: var(--white);
  font-weight: 900;
}

.process-list strong {
  display: block;
  color: var(--blue);
}

.process-list span {
  color: var(--muted);
  font-size: 0.92rem;
}

.service-area {
  background: var(--blue);
}

.service-area-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: var(--white);
}

.service-area-card h2,
.service-area-card .section-label {
  color: var(--white);
}

.service-area-card p {
  max-width: 760px;
  color: #d5e4ef;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
}

.faq-list summary {
  padding: 18px 20px;
  color: var(--blue);
  font-weight: 900;
  cursor: pointer;
}

.faq-list p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.65fr);
  gap: 24px;
  align-items: start;
}

.quote-form,
.contact-panel,
.quote-summary {
  padding: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.quote-form label {
  display: grid;
  gap: 8px;
  color: var(--blue);
  font-weight: 900;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  font-weight: 500;
}

.quote-form input,
.quote-form select {
  height: 46px;
  padding: 0 12px;
}

.quote-form textarea {
  min-height: 120px;
  margin-top: 16px;
  padding: 12px;
  resize: vertical;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: 2px solid rgba(31, 95, 134, 0.22);
  border-color: var(--blue-3);
}

.quote-form .is-invalid {
  border-color: #c2410c;
  background: #fff7ed;
}

.form-errors {
  min-height: 24px;
  margin: 14px 0;
  color: #a33b13;
  font-weight: 800;
}

.field-error {
  color: #a33b13;
  font-size: 0.86rem;
  font-weight: 800;
}

.form-submit {
  width: 100%;
}

.contact-panel {
  background: var(--blue);
  color: var(--white);
}

.contact-panel h3 {
  margin: 0 0 18px;
  font-size: 1.3rem;
}

.contact-panel p {
  display: grid;
  gap: 4px;
  margin: 0 0 18px;
  color: #d8e6ef;
}

.contact-panel span {
  color: #8fc6e0;
  font-size: 0.85rem;
  font-weight: 900;
}

.contact-panel a {
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 900;
  text-decoration: none;
}

.contact-panel .phone-list {
  gap: 8px;
}

.contact-panel .phone-list a {
  width: fit-content;
  line-height: 1.2;
}

.contact-panel img {
  width: 180px;
  height: 180px;
  margin: 8px 0 20px;
  border-radius: 10px;
  background: var(--white);
}

.quote-summary {
  display: grid;
  gap: 14px;
  margin-top: 22px;
  border-color: rgba(31, 95, 134, 0.28);
}

.quote-summary[hidden] {
  display: none;
}

.quote-summary h3 {
  margin: 0 0 4px;
  color: var(--blue);
}

.quote-summary p {
  margin: 0;
  color: var(--muted);
}

.quote-summary textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  resize: vertical;
}

.summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.copy-status {
  min-height: 22px;
  color: var(--success);
  font-weight: 900;
}

/* Footer and floating actions */
.site-footer {
  background: #102235;
  color: #d6e1e9;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 32px;
  padding: 44px 0;
}

.site-footer h2,
.site-footer h3 {
  margin: 0 0 12px;
  color: var(--white);
}

.site-footer p {
  margin: 8px 0;
}

.site-footer a {
  color: var(--white);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 20px;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
}

.floating-contact {
  position: fixed;
  right: 18px;
  top: 50%;
  z-index: 80;
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-50%);
}

.floating-contact a,
.floating-contact button {
  display: grid;
  min-width: 56px;
  min-height: 52px;
  place-items: center;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: var(--white);
  color: var(--blue);
  font-weight: 900;
  text-decoration: none;
}

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

.mobile-bottom {
  display: none;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(9, 22, 34, 0.58);
}

.wechat-modal[hidden] {
  display: none;
}

.modal-panel {
  position: relative;
  width: min(360px, 100%);
  padding: 28px;
  border-radius: 14px;
  background: var(--white);
  text-align: center;
}

.modal-panel h2 {
  margin: 0 0 8px;
  color: var(--blue);
}

.modal-panel p {
  color: var(--muted);
}

.modal-panel img {
  width: 240px;
  height: 240px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.modal-close {
  position: absolute;
  right: 12px;
  top: 10px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--bg);
  color: var(--blue);
  font-size: 1.35rem;
  line-height: 1;
}

.reveal {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.35s ease,
    transform 0.35s ease;
}

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

@media (max-width: 1180px) {
  .container {
    width: min(100% - 32px, 1080px);
  }

  .nav-links a {
    padding-inline: 9px;
    font-size: 0.9rem;
  }

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

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

@media (max-width: 980px) {
  :root {
    --header-height: 62px;
  }

  .header-inner {
    gap: 10px;
    justify-content: space-between;
  }

  .brand {
    max-width: min(230px, calc(100vw - 92px));
  }

  .site-nav {
    flex: 0 0 auto;
    justify-content: flex-end;
    margin-left: auto;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(100% + 8px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 13px 14px;
    color: var(--blue);
  }

  .nav-links a:hover,
  .nav-links a.active {
    background: var(--bg-2);
    color: var(--blue-3);
  }

  .header-call {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-grid,
  .capability-card,
  .strength-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-media {
    max-width: 680px;
  }

  .solution-grid,
  .pain-grid,
  .industry-grid,
  .case-grid,
  .strength-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .floating-contact {
    display: none;
  }
}

@media (max-width: 760px) {
  html,
  body {
    overflow-x: hidden;
    background: var(--bg);
  }

  body {
    padding-bottom: calc(78px + env(safe-area-inset-bottom));
  }

  main {
    background: var(--bg);
  }

  .container {
    width: calc(100% - 32px);
  }

  .section {
    overflow: visible;
    padding: 52px 0;
  }

  .section-anchor {
    scroll-margin-top: 78px;
  }

  .site-header {
    backdrop-filter: none;
  }

  .reveal,
  .reveal.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .hero {
    min-height: auto;
    padding: 34px 0 40px;
    background-position: center top;
  }

  .hero-grid {
    gap: 28px;
  }

  .hero h1 {
    margin-bottom: 14px;
    font-size: clamp(1.9rem, 8.2vw, 2.1rem);
    line-height: 1.2;
    text-wrap: balance;
  }

  .hero-lead {
    margin-bottom: 22px;
    font-size: 0.98rem;
    line-height: 1.68;
  }

  .hero-actions,
  .summary-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions {
    gap: 10px;
    margin-bottom: 18px;
  }

  .hero-media {
    grid-template-columns: 1fr;
    margin-top: 4px;
  }

  .hero-main-photo img,
  .hero-photo-stack img {
    aspect-ratio: 16 / 9;
  }

  .hero-main-photo figcaption {
    right: 12px;
    bottom: 12px;
    padding: 10px 12px;
  }

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

  .btn {
    width: 100%;
    white-space: normal;
  }

  .contact-strip,
  .capability-metrics,
  .capability-certs,
  .solution-grid,
  .pain-grid,
  .industry-grid,
  .case-grid,
  .strength-gallery,
  .product-grid.active,
  .form-grid,
  .metric-grid,
  .cert-wall,
  .process-list {
    grid-template-columns: 1fr;
  }

  .quick-contact {
    padding: 28px 0 0;
  }

  .capability-card {
    padding: 22px;
  }

  .capability-copy h2 {
    font-size: 1.7rem;
  }

  .capability-certs li {
    min-height: 64px;
  }

  .product-tabs {
    margin-inline: -16px;
    padding: 0 16px 8px;
  }

  .product-card > div,
  .card-body,
  .quote-form,
  .contact-panel,
  .quote-summary {
    padding: 18px;
  }

  .solution-card > img,
  .product-card > img,
  .strength-gallery img {
    background:
      linear-gradient(135deg, #dfe9f1, #f4f7fa),
      var(--bg-2);
  }

  .service-area-card {
    display: grid;
  }

  .mobile-bottom {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 110;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding-bottom: env(safe-area-inset-bottom);
    border-top: 1px solid var(--line);
    background: var(--white);
    box-shadow: 0 -10px 22px rgba(11, 46, 74, 0.12);
  }

  .mobile-bottom a,
  .mobile-bottom button {
    display: grid;
    min-width: 0;
    min-height: 56px;
    place-items: center;
    border: 0;
    border-right: 1px solid var(--line);
    background: var(--white);
    color: var(--blue);
    font-weight: 900;
    text-decoration: none;
  }

  .mobile-bottom a:first-child {
    background: var(--orange);
    color: var(--white);
  }

  .mobile-bottom :last-child {
    border-right: 0;
  }
}

@media (max-width: 420px) {
  .container {
    width: calc(100% - 28px);
  }

  .brand {
    max-width: min(212px, calc(100vw - 82px));
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
    border-radius: 9px;
    font-size: 1.08rem;
  }

  .brand-words strong {
    font-size: 0.98rem;
  }

  .brand-words small {
    font-size: 0.58rem;
  }

  .hero {
    padding-top: 30px;
    padding-bottom: 34px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 8.6vw, 1.95rem);
    line-height: 1.22;
  }

  .hero-lead {
    font-size: 0.95rem;
  }

  .section-heading h2,
  .service-area-card h2 {
    font-size: 1.7rem;
  }
}