:root {
  --ink: #101617;
  --ink-soft: #536063;
  --paper: #f4f6f3;
  --white: #ffffff;
  --line: rgba(16, 22, 23, 0.14);
  --cyan: #5ee5d1;
  --cyan-deep: #17bba9;
  --coral: #ff6b4a;
  --night: #0b1012;
  --max-width: 1240px;
  --header-height: 84px;
  --font-sans: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

img,
svg {
  display: block;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--night);
  background: var(--cyan);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.page-shell {
  width: min(calc(100% - 64px), var(--max-width));
  margin-inline: auto;
}

.section {
  padding: 128px 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  color: var(--ink);
  background: rgba(244, 246, 243, 0.94);
  border-color: var(--line);
  box-shadow: 0 10px 40px rgba(16, 22, 23, 0.08);
  backdrop-filter: blur(18px);
}

.header-inner {
  width: min(calc(100% - 64px), var(--max-width));
  min-height: var(--header-height);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}

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

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  transform: rotate(-12deg);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  content: "";
  display: block;
  width: 2px;
  height: 20px;
  position: absolute;
  background: currentColor;
  transform-origin: center;
}

.brand-mark::before {
  transform: rotate(45deg);
}

.brand-mark::after {
  transform: rotate(-45deg);
}

.brand-mark span {
  height: 28px;
  background: var(--coral);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 15px;
  font-weight: 700;
}

.brand-copy small {
  margin-top: 5px;
  font-size: 7px;
  font-weight: 600;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 38px;
}

.desktop-nav a {
  position: relative;
  padding: 31px 0 27px;
  font-size: 13px;
  font-weight: 500;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 20px;
  height: 2px;
  background: var(--coral);
  transition: right 0.25s ease;
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after {
  right: 0;
}

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 18px;
  color: var(--night);
  background: var(--cyan);
  font-size: 13px;
  font-weight: 700;
}

.header-cta svg,
.button svg,
.text-link svg {
  width: 17px;
  height: 17px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  cursor: pointer;
}

.menu-toggle svg {
  width: 21px;
  height: 21px;
}

.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 760px;
  height: 96svh;
  max-height: 980px;
  color: var(--white);
  overflow: hidden;
  background: var(--night);
}

.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-grid {
  opacity: 0.1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(90deg, black, transparent 68%);
}

.hero-content {
  position: relative;
  z-index: 2;
  height: calc(100% - 124px);
  padding-top: var(--header-height);
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  align-items: center;
  gap: 12px;
}

.hero-main {
  position: relative;
  z-index: 3;
  max-width: 650px;
  padding-top: 24px;
}

.eyebrow,
.section-index {
  margin: 0 0 24px;
  font-size: 11px;
  font-weight: 700;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--cyan);
}

.eyebrow span {
  width: 34px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  margin: 0;
  font-size: 78px;
  line-height: 0.98;
  font-weight: 700;
}

.hero h1 .hero-title-effect {
  display: inline-block;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
}

.hero h1 small {
  display: inline-block;
  font-size: 42px;
  line-height: 1.2;
  font-weight: 600;
}

.hero-lead {
  max-width: 670px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 15px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  color: var(--night);
  background: var(--cyan);
}

.button-primary:hover {
  background: var(--white);
}

.button-ghost {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.36);
  backdrop-filter: blur(8px);
}

.button-ghost:hover {
  color: var(--night);
  background: var(--white);
  border-color: var(--white);
}

.hero-visual {
  position: relative;
  align-self: center;
  min-width: 0;
  transform: translateX(-4%);
}

.hero-visual img {
  width: min(920px, 68vw);
  max-width: none;
  height: auto;
  filter: saturate(1.04) contrast(1.02);
  animation: object-float 6s ease-in-out infinite;
}

.hero-visual-caption {
  position: absolute;
  z-index: 2;
  right: 1%;
  top: 44%;
  width: 230px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
}

.hero-visual-caption span {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 8px;
  font-weight: 700;
}

.hero-visual-caption strong {
  font-size: 14px;
  line-height: 1.7;
  font-weight: 500;
}

@keyframes object-float {
  50% { transform: translateY(-10px); }
}

.hero-footer {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  min-height: 124px;
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr)) 1.6fr;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-right: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-stat + .hero-stat {
  padding-left: 24px;
}

.hero-stat strong {
  font-size: 28px;
  font-weight: 600;
}

.hero-stat sup {
  margin-left: 2px;
  color: var(--cyan);
  font-size: 12px;
}

.hero-stat > span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
}

.hero-scroll {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 9px;
  font-weight: 600;
}

.hero-scroll svg {
  width: 18px;
  height: 18px;
  color: var(--cyan);
  animation: down 1.8s ease-in-out infinite;
}

@keyframes down {
  50% { transform: translateY(5px); }
}

.section-heading {
  display: grid;
  grid-template-columns: 1.5fr 0.75fr;
  gap: 64px;
  align-items: end;
  margin-bottom: 64px;
}

.section-index {
  color: var(--coral);
}

.section-heading h2,
.about h2,
.scope h2,
.contact h2 {
  margin: 0;
  font-size: 58px;
  line-height: 1.2;
  font-weight: 600;
}

.section-summary {
  margin: 0 0 8px;
  color: var(--ink-soft);
  font-size: 15px;
}

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

.capability-card {
  min-height: 430px;
  padding: 32px 28px 36px;
  border-left: 1px solid var(--line);
  transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
}

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

.capability-card:hover {
  color: var(--white);
  background: var(--ink);
  transform: translateY(-8px);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 76px;
}

.card-number {
  color: var(--coral);
  font-size: 11px;
  font-weight: 700;
}

.icon-wrap {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--cyan);
  border-radius: 50%;
}

.icon-wrap svg {
  width: 21px;
  height: 21px;
}

.capability-card h3 {
  margin: 0 0 16px;
  font-size: 22px;
  line-height: 1.35;
  font-weight: 600;
}

.capability-card p {
  min-height: 82px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  transition: color 0.3s ease;
}

.capability-card:hover p {
  color: rgba(255, 255, 255, 0.64);
}

.capability-card ul {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.capability-card li {
  position: relative;
  padding-left: 14px;
  color: currentColor;
  font-size: 11px;
}

.capability-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 4px;
  height: 4px;
  background: var(--coral);
}

.solutions {
  color: var(--white);
  background: var(--night);
}

.section-heading.light .section-summary {
  color: rgba(255, 255, 255, 0.54);
}

.solution-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.5fr;
  gap: 72px;
  align-items: stretch;
}

.solution-tabs {
  display: flex;
  flex-direction: column;
}

.solution-tab {
  min-height: 82px;
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 0;
  color: rgba(255, 255, 255, 0.44);
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  text-align: left;
  cursor: pointer;
  transition: color 0.25s ease, padding 0.25s ease;
}

.solution-tab span {
  color: var(--coral);
  font-size: 10px;
}

.solution-tab strong {
  font-size: 18px;
  font-weight: 500;
}

.solution-tab svg {
  width: 17px;
  height: 17px;
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.solution-tab:hover,
.solution-tab.active {
  padding-left: 8px;
  color: var(--white);
}

.solution-tab.active svg {
  color: var(--cyan);
  opacity: 1;
  transform: translateX(0);
}

.solution-panel {
  min-height: 520px;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  background: #161e20;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.solution-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 360px;
  overflow: hidden;
  background: linear-gradient(135deg, #202b2d, #101719);
}

.solution-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

.solution-visual > img {
  position: relative;
  z-index: 2;
  width: 86%;
  max-height: 400px;
  object-fit: contain;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.visual-label {
  position: absolute;
  z-index: 2;
  left: 24px;
  bottom: 20px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 9px;
  font-weight: 600;
}

.solution-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 52px;
}

.solution-kicker {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 11px;
  font-weight: 600;
}

.solution-copy h3 {
  margin: 0 0 22px;
  font-size: 30px;
  line-height: 1.35;
  font-weight: 600;
}

.solution-copy > p:not(.solution-kicker) {
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 14px;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}

.solution-tags span {
  padding: 7px 11px;
  color: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 2px;
  font-size: 10px;
}

.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 12%;
  align-items: start;
}

.about-lead {
  margin: 36px 0 20px;
  color: var(--ink);
  font-size: 17px;
}

.about-copy > p:not(.section-index):not(.about-lead) {
  color: var(--ink-soft);
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.about-details {
  border-top: 2px solid var(--ink);
}

.detail-row {
  position: relative;
  min-height: 96px;
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.detail-row > span {
  color: var(--ink-soft);
  font-size: 11px;
}

.detail-row strong {
  font-size: 15px;
  font-weight: 600;
}

.address-row {
  padding-right: 54px;
}

.copy-button {
  position: absolute;
  right: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
}

.copy-button:hover {
  color: var(--white);
  background: var(--ink);
}

.copy-button svg {
  width: 16px;
  height: 16px;
}

.scope {
  padding-top: 112px;
  background: #e9eeea;
}

.scope-heading {
  display: grid;
  grid-template-columns: 0.6fr 1fr 1.2fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 54px;
}

.scope-heading .section-index,
.scope-heading h2,
.scope-heading p {
  margin: 0;
}

.scope-heading p:last-child {
  color: var(--ink-soft);
  font-size: 13px;
}

.scope-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.scope-cloud span {
  padding: 10px 15px;
  color: #374144;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(16, 22, 23, 0.1);
  border-radius: 2px;
  font-size: 12px;
  transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.scope-cloud span:hover {
  color: var(--night);
  background: var(--cyan);
  transform: translateY(-2px);
}

.scope-note {
  margin: 28px 0 0;
  color: #768083;
  font-size: 10px;
}

.contact {
  position: relative;
  color: var(--white);
  overflow: hidden;
  background: #11191b;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, black, transparent 66%);
}

.contact-glow {
  position: absolute;
  left: -160px;
  bottom: -250px;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(94, 229, 209, 0.32);
  border-radius: 50%;
  box-shadow: 0 0 100px rgba(94, 229, 209, 0.08) inset;
}

.contact-glow::before,
.contact-glow::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(255, 107, 74, 0.26);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.contact-glow::before { width: 390px; height: 390px; }
.contact-glow::after { width: 220px; height: 220px; }

.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 10%;
}

.contact-copy > p:not(.section-index) {
  max-width: 480px;
  margin: 32px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
}

.contact-address {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 56px;
  font-size: 12px;
}

.contact-address svg {
  width: 18px;
  color: var(--coral);
}

.contact-form {
  display: grid;
  gap: 26px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.contact-form label {
  position: relative;
  display: grid;
  gap: 8px;
}

.contact-form label > span {
  font-size: 11px;
  font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  color: var(--white);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 2px;
  outline: 0;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.contact-form input,
.contact-form select {
  height: 52px;
  padding: 0 15px;
}

.contact-form textarea {
  min-height: 130px;
  padding: 13px 15px;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--cyan);
}

.contact-form .invalid {
  border-color: var(--coral);
}

.field-error {
  min-height: 14px;
  color: #ff8c72;
  font-size: 9px;
}

.button-submit {
  width: 100%;
  color: var(--night);
  background: var(--cyan);
}

.button-submit:hover {
  background: var(--white);
}

.form-note {
  margin: -14px 0 0;
  color: rgba(255, 255, 255, 0.36);
  font-size: 9px;
  text-align: center;
}

.site-footer {
  color: var(--white);
  background: #080c0d;
}

.footer-main {
  min-height: 150px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 36px;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.56);
  font-size: 11px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--cyan);
}

.back-top {
  position: fixed;
  z-index: 90;
  right: 28px;
  bottom: 28px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: rgba(11, 16, 18, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, background-color 0.2s ease;
  backdrop-filter: blur(10px);
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-top:hover {
  color: var(--night);
  background: var(--cyan);
}

.back-top svg {
  width: 17px;
  height: 17px;
}

.footer-bottom {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.32);
  font-size: 9px;
}

.toast {
  position: fixed;
  z-index: 200;
  left: 50%;
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  color: var(--night);
  background: var(--cyan);
  border-radius: 2px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.24);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 20px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  font-size: 12px;
  font-weight: 700;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast svg {
  width: 17px;
  height: 17px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.capability-card:nth-child(2) { transition-delay: 0.08s; }
.capability-card:nth-child(3) { transition-delay: 0.16s; }
.capability-card:nth-child(4) { transition-delay: 0.24s; }

@media (max-width: 1100px) {
  .desktop-nav {
    gap: 24px;
  }

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

  .capability-card:nth-child(2) {
    border-right: 1px solid var(--line);
  }

  .capability-card:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .solution-layout {
    grid-template-columns: 0.65fr 1.35fr;
    gap: 40px;
  }

  .solution-panel {
    grid-template-columns: 1fr;
  }

  .solution-copy {
    padding: 38px;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 72px;
  }

  .page-shell,
  .header-inner {
    width: min(calc(100% - 40px), var(--max-width));
  }

  .section {
    padding: 92px 0;
  }

  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-menu {
    position: fixed;
    z-index: -1;
    inset: var(--header-height) 0 0;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    color: var(--white);
    background: rgba(8, 12, 13, 0.98);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .mobile-menu a {
    display: flex;
    align-items: center;
    min-height: 66px;
    padding: 0 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 20px;
  }

  .hero {
    min-height: 760px;
    height: 94svh;
  }

  .hero-content {
    position: relative;
    height: calc(100% - 110px);
    grid-template-columns: 1fr;
  }

  .hero-main {
    padding-top: 0;
  }

  .hero h1 {
    font-size: 62px;
  }

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

  .hero-lead {
    max-width: 590px;
  }

  .hero-visual {
    position: absolute;
    z-index: 1;
    right: -22%;
    bottom: 64px;
    width: 92%;
    opacity: 0.66;
    transform: none;
  }

  .hero-visual img {
    width: 100%;
  }

  .hero-visual-caption {
    display: none;
  }

  .hero-footer {
    min-height: 110px;
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-stat {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
  }

  .hero-scroll {
    display: none;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-summary {
    max-width: 540px;
  }

  .section-heading h2,
  .about h2,
  .scope h2,
  .contact h2 {
    font-size: 48px;
  }

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

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

  .solution-tab {
    min-height: 64px;
    grid-template-columns: 26px 1fr;
    padding: 0 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
  }

  .solution-tab svg {
    display: none;
  }

  .solution-tab:hover,
  .solution-tab.active {
    padding-left: 12px;
    color: var(--night);
    background: var(--cyan);
  }

  .solution-tab.active span {
    color: var(--night);
  }

  .solution-panel {
    grid-template-columns: 0.9fr 1.1fr;
    min-height: 430px;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 72px;
  }

  .scope-heading {
    grid-template-columns: 1fr 1fr;
  }

  .scope-heading p:last-child {
    grid-column: 1 / -1;
  }

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

  .footer-links {
    display: none;
  }
}

@media (max-width: 560px) {
  .page-shell,
  .header-inner {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .section {
    padding: 76px 0;
  }

  .brand-copy strong {
    font-size: 13px;
  }

  .brand-copy small {
    font-size: 6px;
  }

  .hero {
    min-height: 720px;
    height: 92svh;
  }

  .hero-content {
    align-items: center;
    height: calc(100% - 100px);
  }

  .hero-main {
    margin-top: 16px;
  }

  .eyebrow {
    margin-bottom: 18px;
    font-size: 9px;
  }

  .hero h1 {
    font-size: 46px;
    line-height: 1.04;
  }

  .hero h1 small {
    font-size: 28px;
  }

  .hero-lead {
    max-width: 340px;
    margin-top: 22px;
    font-size: 13px;
    line-height: 1.85;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 28px;
  }

  .hero-visual {
    right: -72%;
    bottom: 90px;
    width: 138%;
    opacity: 0.5;
  }

  .button {
    width: 100%;
  }

  .hero-footer {
    min-height: 100px;
  }

  .hero-stat {
    gap: 0;
    padding-right: 8px;
  }

  .hero-stat + .hero-stat {
    padding-left: 12px;
  }

  .hero-stat strong {
    font-size: 19px;
  }

  .hero-stat > span {
    font-size: 8px;
  }

  .section-heading {
    margin-bottom: 42px;
  }

  .section-heading h2,
  .about h2,
  .scope h2,
  .contact h2 {
    font-size: 38px;
  }

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

  .capability-card {
    min-height: 0;
    padding: 28px 24px 32px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .capability-card:last-child {
    border-bottom: 0;
  }

  .card-top {
    margin-bottom: 44px;
  }

  .capability-card p {
    min-height: 0;
  }

  .solution-tabs {
    grid-template-columns: 1fr;
  }

  .solution-tab {
    min-height: 58px;
  }

  .solution-panel {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .solution-visual {
    min-height: 300px;
  }

  .solution-copy {
    padding: 32px 24px 38px;
  }

  .solution-copy h3 {
    font-size: 25px;
  }

  .about-grid,
  .contact-grid {
    gap: 54px;
  }

  .detail-row {
    min-height: 84px;
    grid-template-columns: 90px 1fr;
    gap: 12px;
  }

  .detail-row strong {
    font-size: 13px;
  }

  .address-row {
    padding-right: 42px;
  }

  .copy-button {
    width: 36px;
    height: 36px;
  }

  .scope-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .scope-heading p:last-child {
    grid-column: auto;
    margin-top: 10px;
  }

  .scope-cloud {
    gap: 7px;
  }

  .scope-cloud span {
    padding: 8px 10px;
    font-size: 10px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .contact-address {
    margin-top: 38px;
  }

  .footer-main {
    min-height: 124px;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 20px;
    padding: 30px 0;
  }

  .footer-brand,
  .back-top {
    justify-self: center;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
  }

  .footer-bottom {
    min-height: 84px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    text-align: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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