/* Base */
:root {
  --ink: #142033;
  --muted: #5d6b7f;
  --soft: #f5f8fc;
  --line: #dfe7f0;
  --white: #ffffff;
  --navy: #0f2d45;
  --navy-2: #163d5b;
  --blue: #2563eb;
  --teal: #0f9f9a;
  --green: #2f9e44;
  --amber: #f59f00;
  --coral: #e76f51;
  --shadow: 0 22px 60px rgba(20, 32, 51, 0.13);
  --shadow-soft: 0 12px 34px rgba(20, 32, 51, 0.09);
  --radius: 8px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-lock {
  overflow: hidden;
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
  overflow-wrap: break-word;
}

p {
  color: var(--muted);
}

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

.section {
  padding: 96px 0;
}

.section-heading {
  width: min(760px, 100%);
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading h2,
.section-copy h2,
.delivery-copy h2,
.contact-copy h2 {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 34px;
  line-height: 1.25;
  font-weight: 800;
}

.section-heading p,
.section-copy p,
.delivery-copy p,
.contact-copy p {
  margin-bottom: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.2;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.btn:focus-visible,
.site-nav a:focus-visible,
.header-cta:focus-visible,
.nav-toggle:focus-visible,
.faq-question:focus-visible,
.back-to-top:focus-visible {
  outline: 3px solid rgba(15, 159, 154, 0.35);
  outline-offset: 3px;
}

.btn-primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
  background: #1d4ed8;
}

.btn-secondary {
  color: var(--navy);
  background: var(--white);
  border: 1px solid rgba(20, 32, 51, 0.13);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
  border-color: rgba(15, 159, 154, 0.35);
  color: var(--teal);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-right: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  font-size: 13px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(223, 231, 240, 0.92);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: var(--header-height);
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 238px;
  gap: 12px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--teal));
  font-size: 14px;
  font-weight: 900;
}

.brand-text {
  display: grid;
  gap: 1px;
  line-height: 1.2;
}

.brand-text strong {
  color: var(--ink);
  font-size: 16px;
  white-space: nowrap;
}

.brand-text small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 4px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 11px;
  border-radius: var(--radius);
  color: #334155;
  font-size: 14px;
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--teal);
  background: rgba(15, 159, 154, 0.09);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
  font-size: 14px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease;
}

.header-cta:hover {
  transform: translateY(-1px);
  background: var(--teal);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border-radius: var(--radius);
  background: var(--soft);
  border: 1px solid var(--line);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  min-height: auto;
  padding: 78px 0 72px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(15, 45, 69, 0.96), rgba(15, 45, 69, 0.82)),
    linear-gradient(135deg, rgba(15, 159, 154, 0.2), rgba(245, 159, 0, 0.16)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 88px),
    var(--navy);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 112px;
  background: linear-gradient(180deg, transparent, rgba(245, 248, 252, 0.96));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  align-items: center;
  gap: 56px;
}

.hero-grid > *,
.split-layout > *,
.faq-layout > *,
.delivery-panel > *,
.contact-panel > *,
.footer-inner > *,
.card-grid > *,
.process-list > * {
  min-width: 0;
}

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

.hero .eyebrow {
  color: #8ee8df;
}

.hero h1 {
  margin-bottom: 22px;
  color: var(--white);
  font-size: 56px;
  line-height: 1.12;
  font-weight: 900;
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.83);
  font-size: 18px;
  line-height: 1.85;
}

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

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 14px;
  font-weight: 700;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.42);
  box-shadow: 0 30px 70px rgba(4, 18, 31, 0.34);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 52px;
  padding: 0 18px;
  color: #d6e4ef;
  background: #102a43;
  font-size: 14px;
  font-weight: 800;
}

.panel-status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(47, 158, 68, 0.16);
}

.panel-body {
  padding: 22px;
  color: var(--ink);
}

.panel-block {
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.panel-block h3 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.35;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-list span,
.summary-list span,
.card-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: var(--radius);
  color: var(--navy);
  background: #edf7f6;
  font-size: 13px;
  font-weight: 750;
}

.mini-steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: mini-step;
}

.mini-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-weight: 700;
}

.mini-steps li::before {
  counter-increment: mini-step;
  content: counter(mini-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 50%;
  color: var(--white);
  background: var(--teal);
  font-size: 12px;
  font-weight: 900;
}

.metric-grid {
  display: grid;
  gap: 14px;
}

.metric-grid div {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 3px solid var(--amber);
}

.metric-grid strong {
  color: var(--ink);
  font-size: 18px;
}

.metric-grid span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

@media (min-width: 981px) {
  .hero-panel .mini-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
  }

  .hero-panel .mini-steps li {
    flex-direction: column;
    align-items: center;
    gap: 7px;
    text-align: center;
    font-size: 13px;
    line-height: 1.4;
  }

  .hero-panel .metric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .hero-panel .metric-grid div {
    padding: 12px 0 0;
    border-left: 0;
    border-top: 3px solid var(--amber);
  }

  .hero-panel .metric-grid span {
    font-size: 13px;
  }
}

/* Shared cards */
.services,
.process,
.faq {
  background: var(--soft);
}

.card-grid {
  display: grid;
  gap: 22px;
}

.service-grid,
.solution-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.advantage-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card,
.solution-card,
.advantage-card,
.capability-item,
.process-item {
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(20, 32, 51, 0.03);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.service-card:hover,
.solution-card:hover,
.advantage-card:hover,
.capability-item:hover,
.process-item:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 159, 154, 0.32);
  box-shadow: var(--shadow-soft);
}

.service-card {
  display: flex;
  flex-direction: column;
  min-height: 322px;
  padding: 24px;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
  font-size: 14px;
  font-weight: 900;
}

.service-card:nth-child(2n) .card-icon {
  background: var(--teal);
}

.service-card:nth-child(3n) .card-icon {
  background: var(--coral);
}

.service-card h3,
.solution-card h3,
.advantage-card h3,
.capability-item h3,
.process-item h3 {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.35;
}

.service-card p,
.solution-card p,
.advantage-card p,
.capability-item p,
.process-item p {
  margin-bottom: 0;
  font-size: 15px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 18px;
}

.card-tags span {
  color: #136f63;
  background: #eef8f5;
}

/* Capabilities */
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 52px;
  align-items: start;
}

.section-copy {
  position: sticky;
  top: calc(var(--header-height) + 32px);
}

.section-copy p {
  font-size: 17px;
}

.summary-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.summary-list span {
  color: var(--navy);
  background: #eef3fb;
}

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

.capability-item {
  position: relative;
  min-height: 156px;
  padding: 22px;
  overflow: hidden;
}

.capability-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--teal);
}

.capability-item:nth-child(3n)::before {
  background: var(--amber);
}

.capability-item:nth-child(4n)::before {
  background: var(--coral);
}

/* Solutions and advantages */
.solutions {
  background:
    linear-gradient(180deg, #ffffff, #fbfcff);
}

.solution-card,
.advantage-card {
  min-height: 190px;
  padding: 24px;
}

.solution-card h3::before,
.advantage-card h3::before {
  content: "";
  display: block;
  width: 34px;
  height: 4px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: var(--teal);
}

.solution-card:nth-child(3n) h3::before,
.advantage-card:nth-child(3n) h3::before {
  background: var(--amber);
}

.solution-card:nth-child(4n) h3::before,
.advantage-card:nth-child(4n) h3::before {
  background: var(--coral);
}

.advantages {
  background: #fbfcff;
}

.advantage-card {
  min-height: 154px;
}

/* Process */
.process-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-item {
  position: relative;
  min-height: 270px;
  padding: 22px 18px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
  font-size: 14px;
  font-weight: 900;
}

.process-item:nth-child(even) .step-number {
  background: var(--teal);
}

.process-item:nth-child(3n) .step-number {
  background: var(--coral);
}

.process-item h3 {
  font-size: 18px;
}

.process-item p {
  font-size: 14px;
}

/* Delivery */
.delivery {
  padding-top: 0;
  background: #fbfcff;
}

.delivery-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.65fr);
  gap: 40px;
  align-items: center;
  padding: 48px;
  border-radius: var(--radius);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(15, 45, 69, 0.97), rgba(21, 87, 104, 0.94)),
    var(--navy);
  box-shadow: var(--shadow);
}

.delivery-copy h2,
.delivery-copy p {
  color: var(--white);
}

.delivery-copy p {
  color: rgba(255, 255, 255, 0.82);
}

.delivery-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.delivery-list li {
  position: relative;
  padding: 12px 14px 12px 40px;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.delivery-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

/* FAQ */
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 54px;
  align-items: start;
}

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

.faq-item {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(20, 32, 51, 0.03);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 18px;
  padding: 20px 22px;
  color: var(--ink);
  background: var(--white);
  text-align: left;
  font-weight: 850;
}

.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  border-radius: 50%;
  color: var(--white);
  background: var(--navy);
  line-height: 1;
  transition: transform 180ms ease, background 180ms ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background: var(--teal);
}

.faq-answer {
  display: none;
  padding: 0 22px 22px;
}

.faq-answer p {
  margin-bottom: 0;
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Contact */
.contact {
  background: var(--white);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 42px;
  align-items: stretch;
  padding: 48px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(245, 248, 252, 0.92), rgba(255, 255, 255, 0.98)),
    var(--soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.wechat-box {
  display: inline-grid;
  gap: 4px;
  margin-top: 28px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
}

.wechat-box span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.wechat-box strong {
  color: var(--teal);
  font-size: 26px;
  line-height: 1.2;
}

.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  padding: 28px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
}

.contact-card h3 {
  margin-bottom: 0;
  color: var(--white);
  font-size: 22px;
}

.contact-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-card li {
  position: relative;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.contact-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.copy-wechat {
  width: 100%;
}

.copy-wechat.is-copied {
  background: var(--green);
  box-shadow: 0 14px 28px rgba(47, 158, 68, 0.2);
}

/* Footer */
.site-footer {
  padding: 52px 0 28px;
  color: rgba(255, 255, 255, 0.82);
  background: #0d2234;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) minmax(150px, 0.7fr) minmax(150px, 0.7fr) minmax(260px, 1.1fr);
  gap: 34px;
  align-items: start;
}

.footer-brand strong {
  display: block;
  margin-bottom: 12px;
  color: var(--white);
  font-size: 20px;
}

.footer-brand p,
.footer-info p,
.footer-bottom p {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}

.footer-column h2,
.footer-info h2 {
  margin-bottom: 14px;
  color: var(--white);
  font-size: 15px;
  line-height: 1.35;
}

.footer-links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li,
.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  transition: color 180ms ease;
}

.footer-links a:hover {
  color: #8ee8df;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p {
  margin-bottom: 0;
}

.icp-number a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.icp-number a:hover {
  color: #8ee8df;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease, background 180ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--teal);
}

/* Enhanced by JS */
.js-enabled .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1180px) {
  .header-inner {
    gap: 12px;
  }

  .brand {
    min-width: 216px;
  }

  .site-nav a {
    padding: 0 8px;
  }

  .service-grid,
  .solution-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .process-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(100% - 32px, 860px);
  }

  .section {
    padding: 72px 0;
  }

  .section-heading h2,
  .section-copy h2,
  .delivery-copy h2,
  .contact-copy h2 {
    font-size: 30px;
  }

  .header-inner {
    position: relative;
    min-height: var(--header-height);
  }

  .brand {
    min-width: 0;
  }

  .brand-text strong {
    font-size: 15px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    display: grid;
    justify-content: stretch;
    gap: 0;
    max-height: calc(100vh - var(--header-height));
    padding: 10px 16px 18px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  }

  .site-header.nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    min-height: 46px;
    padding: 0 14px;
    border-radius: var(--radius);
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 76px 0 68px;
  }

  .hero-grid,
  .split-layout,
  .faq-layout,
  .delivery-panel,
  .contact-panel,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 34px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-lead {
    font-size: 17px;
  }

  .section-copy {
    position: static;
  }

  .capability-list,
  .advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .process-item {
    min-height: 230px;
  }

  .delivery {
    padding-top: 0;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 560px);
  }

  .section {
    padding: 58px 0;
  }

  .section-heading {
    margin-bottom: 30px;
    text-align: left;
  }

  .section-heading h2,
  .section-copy h2,
  .delivery-copy h2,
  .contact-copy h2 {
    font-size: 26px;
  }

  .eyebrow {
    font-size: 12px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .brand-text small {
    display: none;
  }

  .hero {
    padding: 62px 0 54px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 16px;
    line-height: 1.75;
  }

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

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

  .hero-panel,
  .delivery-panel,
  .contact-panel {
    margin-left: -2px;
    margin-right: -2px;
  }

  .hero-panel {
    display: none;
  }

  .panel-body,
  .service-card,
  .solution-card,
  .advantage-card,
  .capability-item {
    padding: 20px;
  }

  .service-grid,
  .solution-grid,
  .capability-list,
  .advantage-grid,
  .process-list {
    grid-template-columns: 1fr;
  }

  .service-card,
  .solution-card,
  .advantage-card,
  .capability-item,
  .process-item {
    min-height: auto;
  }

  .process-item {
    padding: 20px;
  }

  .delivery-panel,
  .contact-panel {
    padding: 26px 20px;
  }

  .contact-card {
    padding: 22px;
  }

  .faq-question {
    padding: 18px;
  }

  .faq-answer {
    padding: 0 18px 18px;
  }

  .footer-inner {
    gap: 24px;
  }

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

@media (max-width: 390px) {
  .brand-text strong {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero h1 {
    font-size: 30px;
  }

  .btn {
    padding-left: 14px;
    padding-right: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}