:root {
  --blue: #1e5bff;
  --teal: #00bfa6;
  --ink: #101828;
  --muted: #667085;
  --line: #d9e3f0;
  --soft: #f5f8fc;
  --gold: #ffb020;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(16, 24, 40, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
}

body.menu-open {
  overflow: hidden;
}

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

.container {
  width: min(1140px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 72px;
  padding: 0 max(20px, calc((100vw - 1140px) / 2));
  color: var(--white);
  transition:
    background 0.25s ease,
    box-shadow 0.25s ease,
    color 0.25s ease;
}

.site-header.is-scrolled,
.site-header.menu-active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 227, 240, 0.9);
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 17px;
  font-weight: 750;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(30, 91, 255, 0.28);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
  font-weight: 700;
}

.site-nav a {
  padding: 9px 14px;
  border-radius: 8px;
  opacity: 0.86;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    opacity 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--blue);
  background: rgba(30, 91, 255, 0.09);
  opacity: 1;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.site-header.is-scrolled .menu-toggle,
.site-header.menu-active .menu-toggle {
  border-color: var(--line);
  background: var(--white);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  border-radius: 99px;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: min(760px, 86svh);
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background:
    image-set(url("assets/automation-hero.png") 1x),
    radial-gradient(circle at 72% 28%, rgba(0, 191, 166, 0.25), transparent 32%),
    linear-gradient(135deg, #101828 0%, #14213d 100%);
  background-position: center;
  background-size: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(16, 24, 40, 0.95) 0%, rgba(16, 24, 40, 0.72) 48%, rgba(16, 24, 40, 0.28) 100%),
    linear-gradient(180deg, rgba(16, 24, 40, 0.18) 0%, rgba(16, 24, 40, 0.72) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 118px 0 80px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-weight: 800;
  letter-spacing: 0;
}

.eyebrow {
  font-size: 18px;
}

.section-kicker {
  font-size: 16px;
}

.hero h1 {
  width: min(780px, 100%);
  margin: 0;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.05;
  font-weight: 850;
  letter-spacing: 0;
}

.hero-lead {
  width: min(720px, 100%);
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.85;
}

.hero-note {
  width: min(520px, 100%);
  margin: 22px 0 0;
  color: #d8fff8;
  font-size: 16px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

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

.button.primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 14px 30px rgba(30, 91, 255, 0.35);
}

.button.ghost {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.08);
}

.metrics {
  position: relative;
  z-index: 3;
  margin-top: -28px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.metrics-grid div {
  min-width: 0;
  padding: 26px 28px;
  border-right: 1px solid var(--line);
}

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

.metrics-grid strong {
  display: block;
  color: var(--blue);
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.1;
  font-weight: 850;
}

.metrics-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 96px 0;
  scroll-margin-top: 88px;
}

.section h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.18;
  font-weight: 820;
  letter-spacing: 0;
}

.section h3 {
  margin: 0;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: 0;
}

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

.section-copy > p:not(.section-kicker) {
  max-width: 720px;
  margin: 20px 0 0;
  font-size: 16px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
  gap: 64px;
  align-items: start;
}

.principles {
  display: grid;
  gap: 14px;
}

.principles div {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.principles span,
.service-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 28px;
  margin-bottom: 14px;
  color: var(--blue);
  background: rgba(30, 91, 255, 0.1);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 850;
}

.principles p {
  margin: 8px 0 0;
  font-size: 14px;
}

.services-section,
.process-section {
  background: var(--white);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

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

.service-card,
.case-card {
  min-width: 0;
  min-height: 100%;
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.services-section .service-card {
  background:
    linear-gradient(180deg, rgba(245, 248, 252, 0.85), rgba(255, 255, 255, 1)),
    var(--white);
}

.service-card:hover,
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 91, 255, 0.28);
  box-shadow: 0 16px 36px rgba(16, 24, 40, 0.09);
}

.service-card p,
.case-card p {
  margin: 14px 0 0;
  font-size: 15px;
}

.solutions-section {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(16, 24, 40, 0.98), rgba(20, 33, 61, 0.96)),
    var(--ink);
}

.solutions-section h2,
.solutions-section h3 {
  color: var(--white);
}

.solutions-section p {
  color: rgba(255, 255, 255, 0.76);
}

.solutions-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 56px;
  align-items: start;
}

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

.pain-grid div {
  position: relative;
  min-height: 112px;
  padding: 22px 22px 22px 44px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  font-size: 15px;
}

.pain-grid div::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 22px;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(255, 176, 32, 0.14);
}

.industry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.industry-list span {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 18px;
  color: #0f3a38;
  background: rgba(0, 191, 166, 0.12);
  border: 1px solid rgba(0, 191, 166, 0.24);
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.process-list li {
  position: relative;
  min-height: 132px;
  padding: 22px 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 17px;
  font-weight: 800;
}

.process-list li::after {
  content: "";
  position: absolute;
  right: -15px;
  top: 50%;
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}

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

.process-list span {
  display: block;
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 850;
}

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

.case-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.case-card {
  grid-column: span 2;
}

.case-card:nth-child(4),
.case-card:nth-child(5) {
  grid-column: span 3;
}

.case-card span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.contact-section {
  padding: 82px 0;
  background:
    linear-gradient(90deg, rgba(30, 91, 255, 0.12), rgba(0, 191, 166, 0.13)),
    var(--white);
}

.contact-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.contact-layout h2 {
  max-width: 680px;
}

.contact-info {
  display: grid;
  gap: 10px;
  min-width: min(340px, 100%);
  padding: 26px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(16, 24, 40, 0.08);
  font-style: normal;
}

.contact-info a {
  color: var(--blue);
  font-size: 20px;
  font-weight: 850;
  overflow-wrap: anywhere;
}

.contact-info span {
  color: var(--muted);
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 15px;
}

.footer-inner span:first-child {
  color: var(--white);
  font-weight: 800;
}

@media (min-width: 821px) {
  .process-section .section-heading {
    max-width: none;
  }

  #process-title {
    white-space: nowrap;
  }
}

.reveal {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

@media (max-width: 1020px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process-list li::after {
    display: none;
  }

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

  .case-card,
  .case-card:nth-child(4),
  .case-card:nth-child(5) {
    grid-column: span 1;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 28px, 1140px);
  }

  .site-header {
    height: 64px;
    padding: 0 14px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 14px;
    right: 14px;
    display: grid;
    gap: 4px;
    padding: 12px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity 0.2s ease,
      transform 0.2s ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 13px 14px;
  }

  .hero {
    min-height: 78svh;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(16, 24, 40, 0.95) 0%, rgba(16, 24, 40, 0.78) 100%),
      linear-gradient(180deg, rgba(16, 24, 40, 0.14) 0%, rgba(16, 24, 40, 0.76) 100%);
  }

  .hero-inner {
    padding: 104px 0 68px;
  }

  .hero h1 {
    font-size: clamp(36px, 11vw, 58px);
  }

  .hero-lead {
    font-size: 16px;
    line-height: 1.78;
  }

  .button {
    width: 100%;
  }

  .metrics {
    margin-top: 0;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    box-shadow: none;
  }

  .metrics-grid div {
    padding: 22px 18px;
    border-bottom: 1px solid var(--line);
  }

  .metrics-grid div:nth-child(2n) {
    border-right: 0;
  }

  .metrics-grid div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .section {
    padding: 70px 0;
    scroll-margin-top: 76px;
  }

  .split-layout,
  .solutions-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    display: grid;
    gap: 32px;
  }

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

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

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

@media (max-width: 560px) {
  .brand {
    font-size: 16px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .hero-actions {
    gap: 10px;
  }

  .metrics-grid,
  .service-grid,
  .process-list {
    grid-template-columns: 1fr;
  }

  .metrics-grid div,
  .metrics-grid div:nth-child(2n) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metrics-grid div:last-child {
    border-bottom: 0;
  }

  .section h2 {
    font-size: clamp(27px, 8vw, 36px);
  }

  .service-card,
  .case-card,
  .principles div,
  .contact-info {
    padding: 22px;
  }

  .industry-list span {
    min-height: 40px;
    padding: 0 14px;
    font-size: 14px;
  }

  .footer-inner {
    display: grid;
  }
}

@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;
  }

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