:root {
  --bg: #090d14;
  --bg-deep: #0e1520;
  --bg-soft: #151d29;
  --surface: rgba(16, 22, 31, 0.78);
  --surface-soft: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --text: #f6f0e4;
  --text-muted: rgba(246, 240, 228, 0.72);
  --text-faint: rgba(246, 240, 228, 0.46);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --brand: #ff7b22;
  --brand-strong: #ff9e3d;
  --brand-soft: #ffd1a0;
  --brand-deep: #d34b00;
  --glow: rgba(255, 164, 90, 0.26);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
  --shadow-soft: 0 18px 44px rgba(0, 0, 0, 0.18);
  --radius: 30px;
  --radius-lg: 38px;
  --radius-sm: 18px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 125, 34, 0.2), transparent 22%),
    radial-gradient(circle at 88% 10%, rgba(255, 208, 162, 0.12), transparent 18%),
    radial-gradient(circle at 50% 100%, rgba(255, 111, 0, 0.08), transparent 30%),
    linear-gradient(180deg, #0a0d14 0%, #101722 34%, #090d14 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: 0;
  border-radius: 999px;
  filter: blur(24px);
}

body::before {
  top: 120px;
  left: -140px;
  width: 320px;
  height: 320px;
  background: rgba(255, 123, 34, 0.16);
}

body::after {
  right: -140px;
  bottom: 8%;
  width: 360px;
  height: 360px;
  background: rgba(255, 188, 128, 0.12);
}

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

button {
  font: inherit;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.site-shell {
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.site-shell::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 50%;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 16%,
    rgba(255, 255, 255, 0.02) 86%,
    transparent 100%
  );
  opacity: 0.55;
  transform: translateX(-50%);
  pointer-events: none;
}

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

.hero {
  position: relative;
  min-height: 100vh;
  padding-bottom: 64px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 140px;
  background: linear-gradient(180deg, transparent, rgba(9, 13, 20, 0.95));
  pointer-events: none;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(28px);
  animation: drift 14s ease-in-out infinite;
}

.glow-a {
  top: 120px;
  left: -120px;
  width: 420px;
  height: 420px;
  background: rgba(255, 123, 34, 0.18);
}

.glow-b {
  top: 190px;
  right: -110px;
  width: 380px;
  height: 380px;
  background: rgba(255, 199, 146, 0.12);
  animation-delay: -5s;
}

.grid {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  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: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 1), transparent 88%);
}

.nav {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: var(--container);
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(10, 13, 20, 0.68);
  backdrop-filter: blur(20px);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
}

.nav::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.brand {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(255, 171, 103, 0.16), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff7ed;
  font-weight: 800;
  letter-spacing: 0.12em;
  box-shadow: 0 16px 36px rgba(211, 75, 0, 0.32);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-copy small {
  color: var(--text-faint);
  font-size: 0.82rem;
}

.nav-menu {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-muted);
  transition:
    color 200ms ease,
    background 200ms ease,
    transform 200ms ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav-menu a:hover {
  transform: translateY(-1px);
}

.nav-cta {
  padding: 10px 18px;
  border: 1px solid rgba(255, 183, 129, 0.22);
  background:
    linear-gradient(135deg, rgba(255, 123, 34, 0.22), rgba(255, 123, 34, 0.08)),
    rgba(255, 255, 255, 0.02);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.nav-cta:hover {
  background:
    linear-gradient(135deg, rgba(255, 123, 34, 0.3), rgba(255, 123, 34, 0.12)),
    rgba(255, 255, 255, 0.03);
}

.nav-toggle {
  display: none;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
  transition: transform 200ms ease, opacity 200ms ease;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.96fr);
  gap: 44px;
  align-items: center;
  padding-top: 156px;
}

.hero-copy {
  position: relative;
  max-width: 680px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--brand-soft);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.eyebrow::before {
  content: "";
  width: 38px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 209, 160, 0.12), rgba(255, 209, 160, 0.8));
}

.hero-copy h1,
.section-heading h2,
.split-copy h2,
.accent-copy h2,
.contact-copy h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "Songti SC", "STSong", serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.08;
}

.hero-copy h1 {
  max-width: 11ch;
  font-size: clamp(3.2rem, 7vw, 5.9rem);
}

.headline-accent {
  display: block;
  color: transparent;
  background: linear-gradient(135deg, #ffe0b6 0%, #ffb46e 46%, #ff7b22 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-text {
  max-width: 620px;
  margin: 28px 0 0;
  font-size: 1.08rem;
  line-height: 1.95;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 152px;
  padding: 15px 22px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    background 220ms ease,
    border-color 220ms ease;
}

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

.button-primary {
  color: #fff7ec;
  background:
    linear-gradient(145deg, rgba(255, 197, 141, 0.18), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, var(--brand), var(--brand-deep));
  box-shadow: 0 18px 36px rgba(211, 75, 0, 0.28);
}

.button-primary:hover {
  box-shadow: 0 22px 44px rgba(211, 75, 0, 0.34);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 16px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  backdrop-filter: blur(10px);
}

.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-soft), var(--brand));
  box-shadow: 0 0 0 5px rgba(255, 123, 34, 0.12);
}

.hero-panel {
  display: grid;
  gap: 18px;
}

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

.panel-card,
.service-card,
.feature-card,
.timeline-item,
.advantage-card,
.contact-card,
.metrics article {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.panel-card {
  padding: 24px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(14, 20, 29, 0.7);
}

.panel-card::before,
.service-card::before,
.feature-card::before,
.timeline-item::before,
.advantage-card::before,
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.06),
    transparent 36%,
    transparent 70%,
    rgba(255, 255, 255, 0.03)
  );
  pointer-events: none;
}

.panel-main {
  padding: 32px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 85% 18%, rgba(255, 160, 92, 0.16), transparent 28%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03)),
    rgba(16, 21, 30, 0.82);
}

.panel-main::after {
  content: "";
  position: absolute;
  right: -52px;
  bottom: -58px;
  width: 190px;
  height: 190px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 123, 34, 0.22), transparent 72%);
  pointer-events: none;
}

.panel-tag {
  display: inline-flex;
  padding: 9px 15px;
  border-radius: 999px;
  color: var(--brand-soft);
  font-size: 0.86rem;
  font-weight: 700;
  background: rgba(255, 123, 34, 0.12);
  border: 1px solid rgba(255, 183, 129, 0.16);
}

.panel-main h2 {
  margin: 18px 0 14px;
  font-size: clamp(2rem, 3.2vw, 2.9rem);
}

.panel-main p,
.panel-card p,
.section-heading p,
.split-copy p,
.feature-card p,
.timeline-item p,
.advantage-card p,
.contact-copy p,
.footer p,
.footer span {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.9;
}

.signal-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.signal-track span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.94rem;
}

.signal-track span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-soft), var(--brand));
}

.panel-mini {
  min-height: 156px;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background 220ms ease;
}

.panel-mini:nth-child(2),
.panel-mini:nth-child(4) {
  transform: translateY(22px);
}

.panel-mini:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 183, 129, 0.22);
}

.panel-mini strong,
.service-card h3,
.feature-card h3,
.timeline-item h3,
.advantage-card h3 {
  display: block;
  margin-bottom: 10px;
}

.panel-mini strong {
  font-size: 1.08rem;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 0;
  position: relative;
  z-index: 2;
}

.metrics article {
  padding: 24px 22px;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025)),
    rgba(13, 18, 27, 0.76);
  backdrop-filter: blur(14px);
}

.metrics article::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 179, 124, 0.36), transparent 80%);
}

.metrics strong {
  display: block;
  font-family: "Source Han Serif SC", "Songti SC", "STSong", serif;
  font-size: clamp(2.4rem, 4vw, 3.9rem);
  color: var(--brand-soft);
  line-height: 1;
}

.metrics span {
  display: block;
  margin-top: 10px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.section {
  position: relative;
  padding: 112px 0;
}

.section-heading,
.accent-copy {
  max-width: 780px;
}

.section-heading h2,
.split-copy h2,
.accent-copy h2,
.contact-copy h2 {
  font-size: clamp(2.1rem, 4vw, 3.5rem);
}

.section-heading p:last-child,
.accent-copy p:last-child {
  margin-top: 18px;
  max-width: 660px;
}

.service-grid,
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 38px;
}

.service-card {
  min-height: 274px;
  padding: 30px;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 140, 60, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025)),
    rgba(14, 19, 28, 0.76);
  transition:
    transform 240ms ease,
    border-color 240ms ease,
    box-shadow 240ms ease;
}

.service-card:hover,
.feature-card:hover,
.timeline-item:hover,
.advantage-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 183, 129, 0.24);
  box-shadow: var(--shadow);
}

.service-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  color: var(--brand-soft);
  font-weight: 800;
  letter-spacing: 0.05em;
  background:
    linear-gradient(145deg, rgba(255, 190, 139, 0.12), rgba(255, 255, 255, 0)),
    rgba(255, 123, 34, 0.12);
  border: 1px solid rgba(255, 183, 129, 0.14);
}

.service-card h3 {
  margin: 22px 0 12px;
  font-size: 1.42rem;
}

.service-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.85;
}

.split-section {
  background:
    radial-gradient(circle at 20% 8%, rgba(255, 124, 34, 0.08), transparent 18%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0.008)),
    rgba(255, 255, 255, 0.012);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
  gap: 36px;
  align-items: center;
}

.split-copy p + p {
  margin-top: 18px;
}

.feature-stack {
  display: grid;
  gap: 18px;
}

.feature-card {
  padding: 28px 28px 28px 30px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.025)),
    rgba(14, 19, 27, 0.76);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 28px;
  left: 0;
  width: 4px;
  height: calc(100% - 56px);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--brand-soft), var(--brand));
  opacity: 0.75;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.28rem;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 46px;
  padding-top: 34px;
}

.timeline::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 183, 129, 0.16), rgba(255, 255, 255, 0.14));
}

.timeline-item {
  padding: 28px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.022)),
    rgba(13, 18, 26, 0.8);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.timeline-item:nth-child(even) {
  margin-top: 28px;
}

.timeline-item::after {
  content: "";
  position: absolute;
  top: -30px;
  left: 28px;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-soft), var(--brand));
  box-shadow:
    0 0 0 8px rgba(255, 123, 34, 0.1),
    0 0 0 1px rgba(255, 255, 255, 0.1);
}

.timeline-item span {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: rgba(255, 123, 34, 0.12);
  color: var(--brand-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.timeline-item h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.accent-section {
  position: relative;
}

.accent-wrap {
  padding: 46px;
  border: 1px solid rgba(255, 200, 145, 0.18);
  border-radius: 40px;
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 123, 34, 0.16), transparent 24%),
    radial-gradient(circle at 100% 100%, rgba(255, 196, 138, 0.08), transparent 18%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.advantage-grid {
  margin-top: 34px;
}

.advantage-card {
  padding: 30px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.022)),
    rgba(13, 18, 26, 0.68);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.advantage-card h3 {
  margin: 0 0 12px;
  font-size: 1.3rem;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  align-items: start;
  padding: 36px;
  border-radius: 38px;
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 123, 34, 0.18), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.028)),
    rgba(13, 18, 27, 0.82);
  box-shadow: var(--shadow);
}

.contact-card::after {
  content: "";
  position: absolute;
  inset: auto -70px -86px auto;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 123, 34, 0.24), transparent 70%);
  pointer-events: none;
}

.contact-details {
  display: grid;
  gap: 18px;
}

.contact-details div {
  position: relative;
  padding: 22px 24px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
}

.contact-details span {
  display: block;
  margin-bottom: 10px;
  color: var(--brand-soft);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.contact-details strong {
  display: block;
  font-size: 1.04rem;
  line-height: 1.72;
}

.footer {
  padding: 0 0 42px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: right;
}

.footer-meta a {
  color: var(--text-muted);
  transition: color 180ms ease;
}

.footer-meta a:hover {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 720ms ease,
    transform 720ms ease;
}

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

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(0, 16px, 0) scale(1.04);
  }
}

@media (max-width: 1120px) {
  .hero-content,
  .split-layout,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: 100%;
  }

  .panel-mini:nth-child(2),
  .panel-mini:nth-child(4) {
    transform: none;
  }

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

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

  .timeline::after {
    display: none;
  }

  .timeline-item:nth-child(even) {
    margin-top: 0;
  }

  .timeline-item::after {
    top: 20px;
    left: auto;
    right: 20px;
  }
}

@media (max-width: 780px) {
  .site-shell::before {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-bottom: 36px;
  }

  .nav {
    top: 12px;
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-block;
    position: relative;
    z-index: 3;
  }

  .nav-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    display: grid;
    gap: 10px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
      rgba(10, 13, 20, 0.96);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 180ms ease;
  }

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

  .nav-menu a {
    padding: 10px 12px;
  }

  .hero-content {
    gap: 28px;
    padding-top: 122px;
  }

  .hero-copy h1 {
    font-size: clamp(2.55rem, 13vw, 4.2rem);
  }

  .hero-text {
    font-size: 1rem;
  }

  .signal-track,
  .panel-grid,
  .service-grid,
  .advantage-grid,
  .timeline,
  .metrics {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 88px 0;
  }

  .panel-card,
  .service-card,
  .feature-card,
  .timeline-item,
  .advantage-card,
  .contact-card {
    padding: 24px;
  }

  .panel-main {
    padding: 28px 24px;
  }

  .accent-wrap {
    padding: 28px;
    border-radius: 30px;
  }

  .contact-card {
    border-radius: 30px;
  }

  .hero-points {
    gap: 12px;
  }

  .footer-inner,
  .footer-meta {
    text-align: left;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

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