/* Static/mobile refinements for phpStudy deployment */
html {
  scroll-padding-top: 84px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
  transform: translate(var(--zd-magnet-x, 0), var(--zd-magnet-y, 0));
}

.mobile-site-menu {
  position: fixed;
  top: 72px;
  left: 16px;
  right: 16px;
  z-index: 60;
  display: none;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  padding: 10px;
  border: 1px solid hsla(0, 0%, 100%, .12);
  border-radius: 18px;
  background: rgba(5, 5, 5, .88);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.mobile-site-menu.is-open {
  display: grid;
}

.mobile-site-menu button {
  min-height: 44px;
  border-radius: 14px;
  background: hsla(0, 0%, 100%, .07);
  color: #e8e8e8;
  font-size: 13px;
  font-weight: 600;
}

.mobile-site-menu button:active {
  background: rgba(102, 204, 255, .18);
  color: #fff;
}

@media (max-width: 767px) {
  html {
    scroll-padding-top: 76px;
  }

  body {
    font-size: 15px;
  }

  nav {
    padding-top: 14px !important;
    padding-bottom: 14px !important;
    background: rgba(5, 5, 5, .78) !important;
    border-bottom: 1px solid hsla(0, 0%, 100%, .08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  nav .max-w-7xl {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }

  main section {
    min-height: auto !important;
    padding-top: 88px !important;
    padding-bottom: 72px !important;
  }

  main section#hero,
  main section#about,
  main section#aerial,
  main section#visual,
  main section#ai {
    min-height: 100svh !important;
  }

  main section#hero {
    padding-top: 112px !important;
  }

  main section#hero .mb-12 {
    margin-bottom: 28px !important;
  }

  main section#hero h1 {
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
    font-size: 40px !important;
    line-height: 1.05 !important;
  }

  main section#hero p {
    max-width: 330px;
    font-size: 17px !important;
    line-height: 1.75 !important;
  }

  main section#hero .flex-col {
    gap: 12px !important;
  }

  main section#hero button {
    width: min(100%, 260px);
    min-height: 50px;
    padding-left: 28px !important;
    padding-right: 28px !important;
  }

  main section#about .max-w-xl {
    max-width: 330px;
  }

  main section#about h2,
  main section#aerial h2,
  main section#visual h2,
  main section#ai h2 {
    font-size: 34px !important;
    line-height: 1.12 !important;
  }

  main section#belief p {
    font-size: 20px !important;
    line-height: 1.7 !important;
  }

  main section#services,
  main section#team,
  main section#equipment,
  main section#contact {
    padding-top: 84px !important;
    padding-bottom: 84px !important;
  }

  main section#services .mb-20,
  main section#team .mb-20,
  main section#equipment .mb-20 {
    margin-bottom: 36px !important;
  }

  main section#services h2,
  main section#team h2,
  main section#equipment h2,
  main section#contact h2 {
    font-size: 32px !important;
    line-height: 1.16 !important;
  }

  main section#services .grid,
  main section#team .grid,
  main section#equipment .grid,
  main section#contact .grid {
    gap: 16px !important;
  }

  main section#services .p-8,
  main section#team .p-8,
  main section#equipment .p-8,
  main section#contact .p-8 {
    padding: 22px !important;
  }

  main section#equipment .p-10 {
    padding: 24px !important;
  }

  .rounded-3xl {
    border-radius: 18px !important;
  }

  .rounded-2xl {
    border-radius: 14px !important;
  }

  footer {
    padding-top: 56px !important;
    padding-bottom: 56px !important;
  }

  footer .grid {
    gap: 28px !important;
  }

  .tracking-\[0\.4em\],
  .tracking-\[0\.3em\],
  .tracking-\[0\.25em\] {
    letter-spacing: .16em !important;
  }
}

@media (max-width: 420px) {
  .mobile-site-menu {
    left: 12px;
    right: 12px;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
    padding: 8px;
  }

  .mobile-site-menu button {
    min-height: 42px;
    border-radius: 12px;
    font-size: 12px;
  }

  main section#hero h1 {
    font-size: 36px !important;
  }

  main section#about h2,
  main section#aerial h2,
  main section#visual h2,
  main section#ai h2 {
    font-size: 30px !important;
  }

  main section#services h2,
  main section#team h2,
  main section#equipment h2,
  main section#contact h2 {
    font-size: 29px !important;
  }

  main section#contact p.break-all {
    font-size: 18px !important;
  }
}

/* Visual polish layer */
:root {
  --zd-panel: rgba(255, 255, 255, .055);
  --zd-panel-strong: rgba(255, 255, 255, .078);
  --zd-line: rgba(255, 255, 255, .12);
  --zd-ice: #66ccff;
  --zd-sand: #d8b26e;
}

body {
  background:
    linear-gradient(180deg, #030505 0%, #050505 46%, #000 100%),
    #050505;
}

nav {
  transform: none !important;
  background: linear-gradient(180deg, rgba(5, 5, 5, .78), rgba(5, 5, 5, .48)) !important;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 18px 70px rgba(0, 0, 0, .28);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

nav .max-w-7xl {
  max-width: 1180px;
}

nav button,
footer button {
  white-space: nowrap;
}

#hero {
  background:
    linear-gradient(180deg, rgba(5, 5, 5, .18) 0%, rgba(5, 5, 5, .76) 70%, #050505 100%),
    linear-gradient(120deg, rgba(102, 204, 255, .16), transparent 38%),
    linear-gradient(250deg, rgba(216, 178, 110, .12), transparent 42%),
    url("../images/desert.jpg") center/cover no-repeat;
}

#hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, #050505 82%);
  z-index: 11;
}

#hero .relative.z-20 {
  width: min(100%, 980px);
  padding-top: 72px;
}

#hero h1 {
  letter-spacing: 0 !important;
  text-wrap: balance;
  text-shadow: 0 20px 80px rgba(0, 0, 0, .6);
}

#hero p,
main section h2 + p,
main section .text-titanium-400 {
  text-wrap: pretty;
}

.text-gradient {
  background: linear-gradient(135deg, #fff 0%, #e8f7ff 38%, var(--zd-ice) 72%, #f3d8a3 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
}

.btn-liquid-primary,
.btn-liquid {
  min-height: 44px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, .25);
  will-change: transform;
}

.btn-liquid-primary {
  background: linear-gradient(135deg, #ffffff 0%, #eaf8ff 54%, #cceeff 100%) !important;
}

.btn-liquid {
  background: linear-gradient(135deg, rgba(255, 255, 255, .13), rgba(255, 255, 255, .035)) !important;
}

main section {
  isolation: isolate;
}

main section[id] > .absolute.inset-0:first-child {
  opacity: .96;
}

main section#about .max-w-xl {
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(0, 0, 0, .36), rgba(0, 0, 0, .12));
  box-shadow: 0 28px 90px rgba(0, 0, 0, .28);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

main section#belief {
  background:
    linear-gradient(180deg, #050505 0%, #071014 48%, #050505 100%);
}

main section#belief .space-y-6 {
  padding: 40px 22px;
}

main section#services .group > .relative,
main section#team .group > .relative,
main section#equipment .group,
main section#contact .group {
  border-radius: 18px !important;
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}

main section#services .group:hover > .relative,
main section#team .group:hover > .relative,
main section#equipment .group:hover,
main section#contact .group:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .34);
}

main section#equipment .grid .group,
main section#contact .grid .group {
  background: linear-gradient(135deg, var(--zd-panel-strong), rgba(255, 255, 255, .018));
  border: 1px solid var(--zd-line);
}

main section#equipment .mt-12 {
  border-radius: 22px !important;
  box-shadow: 0 28px 90px rgba(102, 204, 255, .08);
}

main section#contact .grid .group {
  min-height: 210px;
}

footer {
  background: linear-gradient(180deg, #020202, #000);
}

footer .max-w-7xl {
  max-width: 1180px;
}

footer .grid {
  align-items: start;
}

@media (min-width: 768px) {
  #hero .relative.z-20::before {
    content: "ZERO DRONE / ALXA";
    display: block;
    margin-bottom: 22px;
    color: rgba(255, 255, 255, .54);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .28em;
  }

  #hero h1 {
    font-size: clamp(56px, 7vw, 92px) !important;
    line-height: .96 !important;
  }

  #hero p {
    color: rgba(232, 240, 244, .84) !important;
  }
}

@media (max-width: 767px) {
  #hero {
    background-position: 58% center;
  }

  #hero .relative.z-20 {
    padding-top: 34px;
  }

  #hero h1 {
    max-width: 360px;
  }

  main section#about .max-w-xl {
    max-width: none;
    padding: 24px;
    border-radius: 18px;
  }

  main section#belief .space-y-6 {
    padding-left: 0;
    padding-right: 0;
  }

  main section#contact .grid .group {
    min-height: 0;
  }
}

/* Apple-like product motion */
#aerial,
#visual {
  scroll-margin-top: 96px;
  min-height: 120vh !important;
  align-items: flex-start !important;
  padding-top: 132px !important;
  padding-bottom: 110px !important;
  background: #000;
}

#aerial::before,
#visual::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 24%, rgba(255, 255, 255, .12), transparent 24%),
    radial-gradient(circle at 20% 70%, rgba(102, 204, 255, .12), transparent 22%),
    linear-gradient(180deg, #050505 0%, #000 34%, #050505 100%);
  z-index: 1;
}

#aerial > .absolute,
#visual > .absolute {
  opacity: .5;
}

#aerial .relative.z-10 > .relative.mb-16,
#visual .relative.z-10 > .mb-16:first-child {
  display: none !important;
}

#aerial:target,
#visual:target {
  padding-top: 72px !important;
}

#aerial:target .relative.z-10,
#visual:target .relative.z-10 {
  opacity: 1 !important;
  transform: none !important;
}

#aerial:target .zd-product-stage,
#visual:target .zd-product-stage {
  margin-top: 0 !important;
}

.zd-product-stage {
  --zd-scroll: 0;
  --zd-tilt-x: 0deg;
  --zd-tilt-y: 0deg;
  scroll-margin-top: 96px;
  position: relative;
  width: min(100%, 1120px);
  min-height: 660px;
  margin: 0 auto 64px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, .1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .018)),
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, .18), transparent 30%),
    #020202;
  box-shadow:
    0 60px 160px rgba(0, 0, 0, .58),
    inset 0 1px 0 rgba(255, 255, 255, .14);
  perspective: 1400px;
  cursor: default;
}

.zd-product-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 12%, rgba(255, 255, 255, .22) 36%, transparent 58%);
  transform: translateX(calc(-52% + var(--zd-scroll) * -16%));
  opacity: .18;
  filter: blur(8px);
}

.zd-product-stage::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: 42px;
  height: 42px;
  border-radius: 999px;
  background: radial-gradient(ellipse, rgba(102, 204, 255, .28), rgba(0, 0, 0, 0) 70%);
  filter: blur(24px);
  transform: translateY(calc(var(--zd-scroll) * -18px));
}

.zd-product-ambient {
  position: absolute;
  z-index: 1;
  width: 56%;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, .14), transparent 55%),
    conic-gradient(from 120deg, rgba(102, 204, 255, .12), rgba(216, 178, 110, .1), rgba(255, 255, 255, .08), rgba(102, 204, 255, .12));
  filter: blur(40px);
  opacity: .72;
  transform: translateY(calc(var(--zd-scroll) * 24px)) rotate(calc(var(--zd-scroll) * 16deg));
}

.zd-product-image-wrap {
  position: relative;
  z-index: 4;
  width: min(88%, 900px);
  transform:
    rotateX(var(--zd-tilt-x))
    rotateY(var(--zd-tilt-y))
    translate3d(0, calc(var(--zd-scroll) * -34px), 0)
    scale(1.02);
  transition: transform .18s ease-out;
  transform-style: preserve-3d;
}

.zd-hotspots {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
}

.zd-hotspot {
  position: absolute;
  width: 34px;
  height: 34px;
  margin: -17px 0 0 -17px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .4);
  background: rgba(3, 8, 10, .42);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .42), inset 0 1px 0 rgba(255, 255, 255, .24);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  pointer-events: auto;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.zd-hotspot span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #eaf8ff;
  box-shadow: 0 0 18px rgba(102, 204, 255, .9);
}

.zd-hotspot::before {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(102, 204, 255, .2);
  border-radius: inherit;
  animation: zd-hotspot-pulse 2.2s ease-out infinite;
}

.zd-hotspot:hover,
.zd-hotspot.is-active {
  border-color: rgba(102, 204, 255, .78);
  background: rgba(102, 204, 255, .18);
  transform: translate(var(--zd-magnet-x, 0), var(--zd-magnet-y, 0)) scale(1.12);
}

@keyframes zd-hotspot-pulse {
  0% {
    opacity: .75;
    transform: scale(.72);
  }
  100% {
    opacity: 0;
    transform: scale(1.55);
  }
}

.zd-product-image {
  width: 100%;
  max-height: 480px;
  object-fit: contain;
  mix-blend-mode: normal;
  filter:
    drop-shadow(0 36px 70px rgba(0, 0, 0, .72))
    drop-shadow(0 0 44px rgba(102, 204, 255, .12));
}

.zd-product-drone .zd-product-image {
  transform: scale(1.08);
}

.zd-product-camera .zd-product-image-wrap {
  width: min(86%, 820px);
}

.zd-product-camera .zd-product-image {
  border-radius: 18px;
  box-shadow: 0 34px 90px rgba(0, 0, 0, .45);
}

.zd-product-copy {
  position: absolute;
  z-index: 5;
  left: clamp(24px, 5vw, 70px);
  top: clamp(28px, 6vw, 76px);
  max-width: 420px;
  text-align: left;
}

.zd-product-copy span {
  display: block;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, .58);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.zd-product-copy h3 {
  color: #fff;
  font-size: clamp(38px, 6vw, 78px);
  font-weight: 800;
  letter-spacing: 0;
  line-height: .95;
}

.zd-product-copy p {
  margin-top: 18px;
  color: rgba(255, 255, 255, .68);
  font-size: 16px;
  line-height: 1.8;
}

.zd-inspector {
  position: absolute;
  z-index: 6;
  right: clamp(24px, 5vw, 70px);
  top: clamp(34px, 6vw, 82px);
  width: min(300px, 28vw);
  min-height: 150px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .095), rgba(255, 255, 255, .028));
  box-shadow: 0 26px 80px rgba(0, 0, 0, .32), inset 0 1px 0 rgba(255, 255, 255, .12);
  text-align: left;
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
}

.zd-inspector span {
  display: block;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, .48);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.zd-inspector strong {
  display: block;
  color: #fff;
  font-size: 20px;
  line-height: 1.15;
}

.zd-inspector p {
  margin-top: 12px;
  color: rgba(255, 255, 255, .68);
  font-size: 13px;
  line-height: 1.7;
}

.zd-inspector.is-pulsing {
  animation: zd-inspector-pulse .42s ease;
}

@keyframes zd-inspector-pulse {
  0% { transform: scale(.98); border-color: rgba(102, 204, 255, .12); }
  55% { transform: scale(1.015); border-color: rgba(102, 204, 255, .5); }
  100% { transform: scale(1); border-color: rgba(255, 255, 255, .12); }
}

.zd-spec-strip {
  position: absolute;
  z-index: 5;
  left: clamp(24px, 5vw, 70px);
  right: clamp(24px, 5vw, 70px);
  bottom: clamp(24px, 5vw, 52px);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.zd-spec-strip b {
  display: grid;
  min-height: 54px;
  place-items: center;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .11);
  background: rgba(255, 255, 255, .055);
  color: rgba(255, 255, 255, .86);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.zd-spec-strip button {
  border-radius: 16px;
  will-change: transform;
}

.zd-spec-strip button b {
  width: 100%;
}

.zd-spec-strip button.is-active b {
  border-color: rgba(102, 204, 255, .45);
  background: linear-gradient(145deg, rgba(102, 204, 255, .18), rgba(255, 255, 255, .06));
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14), 0 14px 38px rgba(102, 204, 255, .08);
}

.zd-orbit {
  position: absolute;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 50%;
  transform: rotateX(68deg) rotateZ(calc(var(--zd-scroll) * 24deg));
}

.zd-orbit-a {
  width: 720px;
  height: 720px;
}

.zd-orbit-b {
  width: 520px;
  height: 520px;
  border-color: rgba(102, 204, 255, .18);
  transform: rotateX(68deg) rotateZ(calc(var(--zd-scroll) * -34deg));
}

.zd-reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity .9s cubic-bezier(.16, 1, .3, 1), transform .9s cubic-bezier(.16, 1, .3, 1);
  animation: zd-soft-rise .9s cubic-bezier(.16, 1, .3, 1) both;
}

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

.zd-scroll-progress {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 80;
  height: 2px;
  pointer-events: none;
  background: rgba(255, 255, 255, .04);
}

.zd-scroll-progress span {
  display: block;
  width: calc(var(--zd-progress, 0) * 100%);
  height: 100%;
  background: linear-gradient(90deg, rgba(102, 204, 255, .2), #eaf8ff, rgba(216, 178, 110, .8));
  box-shadow: 0 0 20px rgba(102, 204, 255, .45);
}

.zd-copied::after {
  content: "已复制";
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(102, 204, 255, .16);
  color: #eaf8ff;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .28);
}

@keyframes zd-soft-rise {
  from {
    opacity: 0;
    transform: translateY(28px) scale(.986);
    filter: blur(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

#hero .relative.z-20 > * {
  animation: zd-hero-rise .95s cubic-bezier(.16, 1, .3, 1) both;
}

#hero .relative.z-20 > :nth-child(2) { animation-delay: .08s; }
#hero .relative.z-20 > :nth-child(3) { animation-delay: .16s; }
#hero .relative.z-20 > :nth-child(4) { animation-delay: .24s; }

@keyframes zd-hero-rise {
  from {
    opacity: 0;
    transform: translateY(26px) scale(.98);
    filter: blur(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@media (max-width: 767px) {
  #aerial,
  #visual {
    min-height: auto !important;
  }

  .zd-product-stage {
    min-height: 640px;
    margin-bottom: 42px;
    border-radius: 22px;
  }

  .zd-product-copy {
    left: 22px;
    right: 22px;
    top: 28px;
    max-width: none;
  }

  .zd-inspector {
    left: 18px;
    right: 18px;
    top: auto;
    bottom: 136px;
    width: auto;
    min-height: 104px;
    padding: 15px;
    border-radius: 16px;
  }

  .zd-inspector strong {
    font-size: 17px;
  }

  .zd-inspector p {
    margin-top: 8px;
    font-size: 12px;
  }

  .zd-hotspot {
    width: 32px;
    height: 32px;
  }

  .zd-product-copy h3 {
    font-size: 38px;
  }

  .zd-product-copy p {
    max-width: 300px;
    font-size: 14px;
  }

  .zd-product-image-wrap {
    width: 112%;
    margin-top: 58px;
  }

  .zd-product-drone .zd-product-image {
    transform: scale(1.18);
  }

  .zd-product-camera .zd-product-image-wrap {
    width: 118%;
  }

  .zd-spec-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    left: 18px;
    right: 18px;
    bottom: 18px;
    gap: 8px;
  }

  .zd-spec-strip b {
    min-height: 46px;
    border-radius: 13px;
    font-size: 12px;
  }
}

/* Final refinement: quieter, more premium interactions */
.btn-liquid,
.btn-liquid-primary,
nav button,
.zd-spec-strip button,
.zd-hotspot {
  transition:
    transform .28s cubic-bezier(.2, .8, .2, 1),
    border-color .28s ease,
    background .28s ease,
    opacity .28s ease,
    box-shadow .28s ease;
}

.btn-liquid:hover,
.btn-liquid-primary:hover,
.liquid-glass-hover:hover {
  transform: translate(var(--zd-magnet-x, 0), var(--zd-magnet-y, 0)) translateY(-1px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .28);
}

.zd-product-stage {
  border-color: rgba(255, 255, 255, .085);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .052), rgba(255, 255, 255, .018)),
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, .105), transparent 34%),
    #020202;
  box-shadow:
    0 44px 120px rgba(0, 0, 0, .52),
    inset 0 1px 0 rgba(255, 255, 255, .08);
}

.zd-product-stage::before {
  opacity: .07;
  filter: blur(12px);
}

.zd-product-stage::after {
  height: 28px;
  opacity: .5;
  background: radial-gradient(ellipse, rgba(255, 255, 255, .16), rgba(0, 0, 0, 0) 68%);
  filter: blur(22px);
}

.zd-product-ambient {
  background: radial-gradient(circle, rgba(255, 255, 255, .105), transparent 62%);
  filter: blur(56px);
  opacity: .42;
}

.zd-orbit {
  opacity: .28;
  border-color: rgba(255, 255, 255, .08);
}

.zd-orbit-b {
  border-color: rgba(255, 255, 255, .075);
}

.zd-product-image-wrap {
  transition: transform .24s cubic-bezier(.2, .8, .2, 1);
}

.zd-product-image {
  filter: drop-shadow(0 32px 66px rgba(0, 0, 0, .64));
}

.zd-hotspot {
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
  border-color: rgba(255, 255, 255, .28);
  background: rgba(12, 14, 16, .58);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .36), inset 0 1px 0 rgba(255, 255, 255, .16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.zd-hotspot span {
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, .9);
  box-shadow: none;
}

.zd-hotspot::before {
  display: none;
}

.zd-hotspot:hover,
.zd-hotspot.is-active {
  border-color: rgba(255, 255, 255, .62);
  background: rgba(255, 255, 255, .12);
  transform: translate(var(--zd-magnet-x, 0), var(--zd-magnet-y, 0)) scale(1.04);
}

.zd-inspector {
  border-color: rgba(255, 255, 255, .085);
  background: linear-gradient(145deg, rgba(255, 255, 255, .064), rgba(255, 255, 255, .024));
  box-shadow: 0 22px 62px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .075);
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
}

.zd-inspector span {
  color: rgba(255, 255, 255, .42);
}

.zd-inspector strong {
  font-weight: 650;
}

.zd-inspector.is-pulsing {
  animation: zd-inspector-settle .28s ease;
}

@keyframes zd-inspector-settle {
  0% { opacity: .78; transform: translateY(2px); }
  100% { opacity: 1; transform: translateY(0); }
}

.zd-spec-strip b {
  border-color: rgba(255, 255, 255, .085);
  background: rgba(255, 255, 255, .04);
  color: rgba(255, 255, 255, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.zd-spec-strip button:hover b,
.zd-spec-strip button.is-active b {
  border-color: rgba(255, 255, 255, .22);
  background: rgba(255, 255, 255, .085);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1);
}

.zd-scroll-progress {
  height: 1px;
  background: rgba(255, 255, 255, .035);
}

.zd-scroll-progress span {
  background: rgba(255, 255, 255, .72);
  box-shadow: none;
}

.zd-reveal {
  animation: zd-final-rise .7s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes zd-final-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
    filter: blur(3px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
}

@media (max-width: 767px) {
  .zd-hotspot {
    width: 28px;
    height: 28px;
  }
}

/* Final stability pass: no content should depend on entrance animation */
.zd-reveal,
#hero .relative.z-20 > * {
  animation: none !important;
  opacity: 1 !important;
  filter: none !important;
}

.zd-reveal {
  transform: translateY(0) scale(1) !important;
}

#hero .relative.z-20 > * {
  transform: none !important;
}

.zerodrone-static body [style*="opacity:0"] {
  opacity: 1 !important;
}

.zerodrone-static body [style*="filter:"] {
  filter: none !important;
}

/* Final mobile product layout */
@media (max-width: 767px) {
  #aerial,
  #visual {
    scroll-margin-top: 72px;
    padding-top: 96px !important;
    padding-bottom: 82px !important;
  }

  .zd-product-stage {
    scroll-margin-top: 72px;
    min-height: 800px;
    padding: 0;
    border-radius: 20px;
  }

  .zd-product-copy {
    top: 24px;
    left: 18px;
    right: 18px;
    z-index: 10;
  }

  .zd-product-copy span {
    margin-bottom: 10px;
    font-size: 10px;
    letter-spacing: .16em;
  }

  .zd-product-copy h3 {
    font-size: 32px;
    line-height: 1;
  }

  .zd-product-copy p {
    max-width: 310px;
    margin-top: 12px;
    font-size: 13px;
    line-height: 1.65;
  }

  .zd-product-image-wrap {
    width: 118%;
    margin-top: 132px;
  }

  .zd-product-drone .zd-product-image {
    transform: scale(1.02);
  }

  .zd-product-camera .zd-product-image-wrap {
    width: 108%;
    margin-top: 134px;
  }

  .zd-product-camera .zd-product-image {
    border-radius: 0;
    box-shadow: none;
  }

  .zd-inspector {
    bottom: 130px;
  }

  .zd-spec-strip {
    bottom: 16px;
  }
}

/* Premium liquid glass atmosphere */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0 18%, rgba(255, 255, 255, .035) 28%, transparent 42% 100%),
    linear-gradient(72deg, transparent 0 34%, rgba(102, 204, 255, .026) 48%, transparent 62% 100%),
    repeating-linear-gradient(105deg, rgba(255, 255, 255, .018) 0 1px, transparent 1px 16px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .82), rgba(0, 0, 0, .32) 72%, rgba(0, 0, 0, .1));
  opacity: .62;
  transform: translate3d(0, 0, 0);
  animation: zd-glass-drift 18s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: -18%;
  z-index: 0;
  pointer-events: none;
  background:
    conic-gradient(from 210deg at 48% 38%, transparent 0deg, rgba(255, 255, 255, .055) 42deg, transparent 78deg, rgba(102, 204, 255, .035) 126deg, transparent 168deg, rgba(216, 178, 110, .034) 238deg, transparent 286deg),
    linear-gradient(180deg, rgba(255, 255, 255, .025), transparent 40%, rgba(255, 255, 255, .018));
  filter: blur(38px);
  opacity: .34;
  mix-blend-mode: screen;
  animation: zd-glass-breathe 24s ease-in-out infinite alternate;
}

body > nav,
body > main,
body > footer,
.mobile-site-menu,
.zd-scroll-progress {
  position: relative;
  z-index: 1;
}

.mobile-site-menu {
  position: fixed;
  z-index: 80;
}

.zd-scroll-progress {
  position: fixed;
  z-index: 70;
}

#hero::before,
#about::before,
#belief::before,
#aerial::after,
#visual::after,
#equipment::before,
#contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .052), transparent 18% 68%, rgba(255, 255, 255, .026)),
    repeating-linear-gradient(118deg, rgba(255, 255, 255, .022) 0 1px, transparent 1px 22px);
  opacity: .28;
  mix-blend-mode: screen;
}

#hero .relative.z-20,
#about .relative.z-10,
#belief .relative.z-10,
#aerial .relative.z-10,
#visual .relative.z-10,
#equipment .relative.z-10,
#contact .relative.z-10 {
  z-index: 3;
}

#hero .relative.z-20 {
  z-index: 20;
}

.zd-product-stage {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .018)),
    linear-gradient(118deg, rgba(255, 255, 255, .06), transparent 27% 72%, rgba(255, 255, 255, .035)),
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, .1), transparent 34%),
    #020202;
}

.zd-product-stage .zd-product-ambient {
  opacity: .5;
}

@keyframes zd-glass-drift {
  from {
    transform: translate3d(-1.5%, -1%, 0) skewY(-1deg);
  }
  to {
    transform: translate3d(1.5%, 1%, 0) skewY(1deg);
  }
}

@keyframes zd-glass-breathe {
  from {
    transform: scale(1) rotate(-1deg);
    opacity: .26;
  }
  to {
    transform: scale(1.05) rotate(1deg);
    opacity: .38;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after {
    animation: none !important;
  }
}