:root {
  --bg: #0c1726;
  --bg-soft: #13243a;
  --panel: rgba(11, 24, 42, 0.72);
  --panel-strong: rgba(14, 30, 50, 0.92);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4efe7;
  --muted: #aac0cf;
  --accent: #d89b4a;
  --mint: #72d6c0;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(216, 155, 74, 0.16), transparent 30%),
    radial-gradient(circle at 90% 10%, rgba(114, 214, 192, 0.14), transparent 24%),
    linear-gradient(180deg, #091321 0%, #0d1a2b 45%, #132945 100%);
  min-width: 320px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 92%);
}

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.page-shell {
  position: relative;
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(7, 15, 26, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 13px;
}

.topbar-inner,
.nav-wrap,
.hero-grid,
.trust-band-inner,
.split-heading,
.about-grid,
.contact-grid,
.footer-inner,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.topbar-inner {
  min-height: 46px;
}

.topbar-inner p,
.footer-bottom p {
  margin: 0;
}

.topbar-contact {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-wrap {
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(216, 155, 74, 0.95), rgba(114, 214, 192, 0.65));
  color: #0d1622;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: grid;
  gap: 3px;
}

.brand-copy strong {
  font-size: 18px;
  line-height: 1.3;
}

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

.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 15px;
}

.site-nav a {
  position: relative;
  padding-bottom: 6px;
  color: rgba(244, 239, 231, 0.86);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--mint));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  padding: 11px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero {
  position: relative;
  padding: 72px 0 48px;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(216, 155, 74, 0.22), transparent 26%),
    radial-gradient(circle at 80% 28%, rgba(114, 214, 192, 0.2), transparent 24%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.03), transparent 55%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.service-card,
.solution-card,
.showcase,
.timeline-item,
.about-highlights article,
.contact-card,
.contact-side {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-copy {
  flex: 1.2;
  padding: 42px;
  border-radius: var(--radius-xl);
}

.hero-panel {
  flex: 0.95;
  border-radius: var(--radius-xl);
  padding: 26px;
}

.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 12px;
  color: var(--mint);
}

.hero h1,
.section-heading h2,
.split-heading h2,
.about-copy h2,
.contact-card h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "Songti SC", "STSong", serif;
  line-height: 1.22;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(34px, 4.7vw, 62px);
  max-width: 12ch;
}

.hero-text {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(244, 239, 231, 0.88);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

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

.button.primary {
  color: #122031;
  background: linear-gradient(135deg, var(--accent), #f3c879);
}

.button.ghost {
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
}

.hero-metrics {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 34px 0 0;
}

.hero-metrics li {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-metrics strong {
  display: block;
  font-size: 34px;
  color: var(--accent);
}

.hero-metrics span,
.section-heading p,
.split-heading > p,
.service-card p,
.solution-card p,
.showcase-copy li,
.timeline-item p,
.about-copy p,
.about-highlights p,
.contact-card p,
.contact-promise p,
.site-footer p {
  color: var(--muted);
  line-height: 1.85;
}

.panel-card {
  padding: 28px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-label {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(114, 214, 192, 0.12);
  color: var(--mint);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.panel-card h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.45;
}

.panel-card p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.panel-list,
.service-card ul,
.showcase-copy ul {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  gap: 10px;
}

.panel-list li,
.service-card li,
.showcase-copy li {
  position: relative;
  padding-left: 18px;
}

.panel-list li::before,
.service-card li::before,
.showcase-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--mint));
}

.floating-notes {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.note {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  animation: drift 5s ease-in-out infinite;
}

.note:nth-child(2) {
  animation-delay: 0.8s;
}

.note:nth-child(3) {
  animation-delay: 1.6s;
}

.note span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(216, 155, 74, 0.18);
  color: var(--accent);
  font-weight: 700;
}

.trust-band {
  padding-bottom: 30px;
}

.trust-band-inner {
  padding: 18px 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.trust-band-inner p {
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.trust-list,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.trust-list span {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
}

.section {
  padding: 42px 0 24px;
}

.section-heading,
.split-heading {
  margin-bottom: 28px;
}

.section-heading h2,
.split-heading h2,
.about-copy h2,
.contact-card h2 {
  font-size: clamp(28px, 3.6vw, 46px);
}

.section-heading p,
.split-heading > p {
  max-width: 760px;
  margin: 16px 0 0;
}

.service-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card,
.solution-card,
.timeline-item {
  border-radius: var(--radius-lg);
  padding: 28px;
}

.service-card h3,
.solution-card h3,
.showcase-copy h3,
.timeline-item h3,
.about-highlights h3,
.contact-side h3 {
  margin: 12px 0 0;
  font-size: 24px;
}

.solution-grid,
.timeline {
  display: grid;
  gap: 20px;
}

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

.solution-card span,
.timeline-item span,
.about-highlights h3,
.contact-list span {
  color: var(--accent);
}

.solution-card span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.showcase {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  margin-top: 22px;
  padding: 28px;
  border-radius: var(--radius-xl);
}

.board-screen {
  width: 100%;
  padding: 18px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(7, 17, 29, 0.9), rgba(13, 31, 49, 0.88)),
    linear-gradient(135deg, rgba(216, 155, 74, 0.12), transparent);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.board-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.board-row:last-child {
  border-bottom: 0;
}

.board-row span {
  color: var(--muted);
}

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

.timeline-item span {
  font-size: 42px;
  font-weight: 800;
  opacity: 0.45;
}

.about-copy {
  flex: 1.2;
}

.about-highlights,
.contact-side {
  flex: 0.95;
}

.about-highlights {
  display: grid;
  gap: 18px;
}

.about-highlights article,
.contact-side {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.contact-card {
  flex: 1.05;
  padding: 34px;
  border-radius: var(--radius-xl);
}

.contact-side {
  display: grid;
  gap: 18px;
  border-radius: var(--radius-xl);
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.contact-list a {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.contact-list strong {
  font-size: 20px;
  text-align: right;
}

.contact-meta dl {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
}

.contact-meta div {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-meta div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.contact-meta dt {
  color: var(--muted);
  margin-bottom: 6px;
}

.contact-meta dd {
  margin: 0;
  line-height: 1.75;
}

.contact-promise {
  padding: 20px;
  border-radius: 18px;
  background: rgba(216, 155, 74, 0.1);
  border: 1px solid rgba(216, 155, 74, 0.16);
}

.site-footer {
  padding: 34px 0 28px;
}

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

.footer-inner strong {
  display: block;
  font-size: 18px;
}

.footer-links {
  color: var(--muted);
}

.footer-bottom {
  margin-top: 12px;
  padding-bottom: 10px;
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal-delay {
  transition-delay: 0.12s;
}

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

@keyframes drift {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(10px);
  }
}

@media (max-width: 1080px) {
  .hero-grid,
  .about-grid,
  .contact-grid,
  .showcase {
    flex-direction: column;
    display: flex;
  }

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

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

  .trust-band-inner,
  .split-heading,
  .footer-inner,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 860px) {
  .topbar {
    display: none;
  }

  .nav-wrap {
    min-height: 74px;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 8px);
    display: grid;
    gap: 6px;
    padding: 16px;
    border-radius: 20px;
    background: rgba(9, 18, 31, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

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

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

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

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

@media (max-width: 720px) {
  :root {
    --container: min(100vw - 28px, 1180px);
  }

  .hero {
    padding-top: 36px;
  }

  .hero-copy,
  .hero-panel,
  .contact-card,
  .service-card,
  .solution-card,
  .timeline-item,
  .about-highlights article,
  .contact-side,
  .showcase {
    padding: 22px;
    border-radius: 22px;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-metrics,
  .service-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .contact-list a,
  .board-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-list strong {
    text-align: left;
  }

  .brand-copy strong {
    font-size: 16px;
  }

  .brand-copy small {
    font-size: 11px;
  }
}

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

  .note,
  .js .reveal,
  .button,
  .site-nav,
  .nav-toggle span {
    animation: none !important;
    transition: none !important;
  }
}