:root {
  --ink: #030a10;
  --navy: #071b2a;
  --navy-2: #0d3147;
  --cyan: #22afe8;
  --cyan-soft: #79d8ff;
  --ice: #d8eef8;
  --muted: #90a9b6;
  --white: #ffffff;
  --gold: #dcb42d;
  color-scheme: dark;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: var(--ink); }
body { color: var(--white); -webkit-font-smoothing: antialiased; touch-action: none; }
button, input, textarea, select { font: inherit; }

#h5-app { position: relative; width: 100%; height: 100%; }
.slide {
  position: absolute;
  inset: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding:
    max(40px, env(safe-area-inset-top))
    max(24px, env(safe-area-inset-right))
    max(38px, env(safe-area-inset-bottom))
    max(24px, env(safe-area-inset-left));
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 12%, rgba(34,175,232,.18), transparent 30%),
    radial-gradient(circle at 10% 86%, rgba(22,105,145,.18), transparent 26%),
    linear-gradient(155deg, #0b2536 0%, var(--navy) 42%, var(--ink) 100%);
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 7%, 0);
  transition: opacity .55s ease, transform .7s cubic-bezier(.22,.8,.2,1), visibility .7s;
}
.slide::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .24;
  background-image:
    linear-gradient(rgba(109,203,244,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(109,203,244,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}
.slide.is-active { opacity: 1; visibility: visible; transform: translate3d(0,0,0); z-index: 2; }
.slide.is-before { transform: translate3d(0,-7%,0); }
.slide__content { position: relative; z-index: 2; width: min(100%, 560px); }
.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan-soft);
  font: 600 clamp(10px, 2.8vw, 12px)/1.2 Arial, sans-serif;
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2 {
  margin-bottom: 18px;
  letter-spacing: -.045em;
  text-wrap: balance;
}
h1 { font-size: clamp(42px, 12vw, 72px); line-height: 1.05; }
h1 span { color: var(--cyan-soft); }
h2 { font-size: clamp(34px, 9.5vw, 58px); line-height: 1.08; }
h3 { font-size: 15px; margin-bottom: 4px; }
.lead { max-width: 31em; color: var(--ice); font-size: clamp(15px, 4vw, 18px); line-height: 1.72; }
.footnote { margin: 15px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .65s cubic-bezier(.2,.75,.2,1); }
.is-active .reveal { opacity: 1; transform: translateY(0); }
.is-active .reveal:nth-child(2) { transition-delay: .08s; }
.is-active .reveal:nth-child(3) { transition-delay: .16s; }
.is-active .reveal:nth-child(4) { transition-delay: .24s; }
.is-active .reveal:nth-child(5) { transition-delay: .32s; }

.slide--hero { background: radial-gradient(circle at 78% 18%, #174f6d 0%, #081a26 36%, #02080d 76%); }
.hero { padding-bottom: 12vh; }
.hero__subtitle { margin: 28px 0 8px; color: var(--white); font-size: 18px; font-weight: 600; letter-spacing: .08em; }
.hero__identity { display: grid; gap: 6px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.hero__identity strong { color: var(--ice); font-size: 14px; }
.mesh { position: absolute; inset: 0; opacity: .7; }
.mesh i { position: absolute; width: 7px; height: 7px; border: 1px solid var(--cyan); border-radius: 50%; box-shadow: 0 0 18px var(--cyan); }
.mesh i::after { content: ""; position: absolute; left: 6px; top: 3px; width: 22vw; height: 1px; transform: rotate(var(--r, 15deg)); transform-origin: left; background: linear-gradient(90deg, rgba(34,175,232,.65), transparent); }
.mesh i:nth-child(1) { top: 16%; left: 18%; --r: 34deg; }
.mesh i:nth-child(2) { top: 25%; right: 13%; --r: 145deg; }
.mesh i:nth-child(3) { top: 46%; left: 8%; --r: -24deg; }
.mesh i:nth-child(4) { top: 55%; right: 18%; --r: 194deg; }
.mesh i:nth-child(5) { bottom: 18%; left: 28%; --r: -34deg; }
.mesh i:nth-child(6) { bottom: 12%; right: 10%; --r: 210deg; }
.mesh i:nth-child(7) { top: 38%; left: 58%; --r: 112deg; }
.swipe-cue { position: absolute; z-index: 3; bottom: max(20px, env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); display: grid; justify-items: center; gap: 7px; color: var(--muted); font-size: 10px; letter-spacing: .12em; }
.swipe-cue span { width: 18px; height: 28px; border: 1px solid rgba(255,255,255,.35); border-radius: 12px; position: relative; }
.swipe-cue span::after { content: ""; width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); position: absolute; top: 6px; left: 7px; animation: swipe 1.8s infinite; }
@keyframes swipe { 0% { opacity: 0; transform: translateY(9px); } 35% { opacity: 1; } 100% { opacity: 0; transform: translateY(-3px); } }

.service-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin: 28px 0 24px; }
.service-cloud span, .tech-list span, .delivery-grid span, .cooperation-list span {
  border: 1px solid rgba(121,216,255,.25);
  background: rgba(12,51,72,.58);
  color: var(--ice);
  backdrop-filter: blur(10px);
}
.service-cloud span { padding: 9px 13px; border-radius: 999px; font-size: 13px; }
.platforms { color: var(--muted); font-size: 12px; letter-spacing: .05em; }
.orb { position: absolute; width: 260px; height: 260px; border: 1px solid rgba(121,216,255,.16); border-radius: 50%; }
.orb::before, .orb::after { content: ""; position: absolute; inset: 16%; border: inherit; border-radius: inherit; }
.orb::after { inset: 34%; }
.orb--right { right: -130px; bottom: -40px; }

.advantage-grid { display: grid; gap: 10px; margin-top: 26px; }
.advantage { display: grid; grid-template-columns: 42px 1fr; gap: 13px; align-items: center; padding: 13px 14px; border: 1px solid rgba(121,216,255,.17); border-radius: 14px; background: linear-gradient(100deg, rgba(13,49,71,.76), rgba(5,21,31,.5)); }
.advantage img { width: 34px; height: 34px; object-fit: contain; filter: hue-rotate(160deg) saturate(1.2); }
.advantage p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.45; }

.system-visual, .opc-visual { margin: 0; overflow: hidden; border-radius: 16px; border: 1px solid rgba(121,216,255,.22); box-shadow: 0 18px 50px rgba(0,0,0,.35); }
.system-visual { aspect-ratio: 1.85; }
.system-visual img, .opc-visual img { width: 100%; height: 100%; display: block; object-fit: cover; }
.tech-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 14px; }
.tech-list span { min-height: 54px; padding: 10px; border-radius: 10px; display: flex; align-items: center; font-size: 11px; line-height: 1.4; }

.business-orbit { position: relative; width: min(82vw, 360px); aspect-ratio: 1; margin: 10px auto 16px; border: 1px solid rgba(121,216,255,.18); border-radius: 50%; }
.business-orbit::before { content: ""; position: absolute; inset: 18%; border: 1px dashed rgba(121,216,255,.2); border-radius: 50%; }
.orbit-core { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%,-50%); width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; text-align: center; background: var(--cyan); color: #04131c; font-weight: 800; box-shadow: 0 0 35px rgba(34,175,232,.35); }
.orbit-item { position: absolute; width: 125px; padding: 9px 8px; border-radius: 10px; background: rgba(4,21,31,.92); border: 1px solid rgba(121,216,255,.22); text-align: center; }
.orbit-item b, .orbit-item span { display: block; }
.orbit-item b { font-size: 12px; }
.orbit-item span { margin-top: 3px; color: var(--muted); font-size: 10px; }
.orbit-item--one { left: 50%; top: -4px; transform: translateX(-50%); }
.orbit-item--two { right: -18px; top: 50%; transform: translateY(-50%); }
.orbit-item--three { left: 50%; bottom: -4px; transform: translateX(-50%); }
.orbit-item--four { left: -18px; top: 50%; transform: translateY(-50%); }
.flow-copy { text-align: center; color: var(--muted); font-size: 11px; }

.triad { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin: 28px 0 16px; }
.triad article { min-height: 112px; display: grid; align-content: center; gap: 9px; padding: 12px 8px; text-align: center; border-radius: 50% 50% 14px 14px; background: linear-gradient(155deg, rgba(34,175,232,.25), rgba(6,26,38,.7)); border: 1px solid rgba(121,216,255,.2); }
.triad b { font-size: 16px; color: var(--cyan-soft); }
.triad span { font-size: 10px; color: var(--ice); line-height: 1.4; }
.value-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.value-row span { padding: 9px; text-align: center; font-size: 11px; color: var(--muted); border-bottom: 1px solid rgba(121,216,255,.22); }

.opc-visual { width: 100%; aspect-ratio: 1.58; border-color: rgba(220,180,45,.3); }
blockquote { margin: 18px 0 14px; color: #f5d96d; font-size: 19px; font-weight: 700; text-align: center; }
.delivery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; }
.delivery-grid span { padding: 9px 5px; border-color: rgba(220,180,45,.24); color: #f2e4ad; border-radius: 8px; text-align: center; font-size: 10px; }

.global-media { position: absolute; inset: 0; }
.global-media img:first-child { position: absolute; width: 92%; right: -28%; top: 9%; opacity: .14; filter: invert(1) grayscale(1); }
.global-media img:last-child { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 28%; object-fit: cover; opacity: .16; mask-image: linear-gradient(to bottom, transparent, black); }
.cooperation-list { display: grid; gap: 9px; margin-top: 28px; }
.cooperation-list span { position: relative; padding: 13px 16px 13px 42px; border-radius: 12px; font-size: 14px; font-weight: 600; }
.cooperation-list span::before { content: ""; position: absolute; left: 16px; top: 50%; width: 10px; height: 10px; border: 2px solid var(--cyan); border-radius: 50%; transform: translateY(-50%); }

.contact { text-align: center; }
.qr-card { width: min(68vw, 290px); margin: 0 auto 12px; border-radius: 18px; padding: 8px; background: #fff; box-shadow: 0 18px 60px rgba(0,0,0,.45), 0 0 0 1px rgba(121,216,255,.18); }
.qr-card img { display: block; width: 100%; height: auto; border-radius: 12px; }
.contact__name { margin-bottom: 5px; color: var(--white); font-size: 15px; font-weight: 700; }
.contact__hint { margin-bottom: 18px; color: var(--muted); font-size: 11px; }
.contact__company { display: grid; gap: 4px; font-size: 11px; color: var(--muted); }
.contact__company strong { color: var(--ice); font-size: 13px; }

.progress { position: fixed; z-index: 10; right: max(13px, env(safe-area-inset-right)); top: 50%; transform: translateY(-50%); display: grid; justify-items: center; gap: 7px; color: rgba(216,238,248,.55); font: 600 9px/1 Arial, sans-serif; }
.progress i { width: 1px; height: 96px; background: rgba(255,255,255,.14); position: relative; }
.progress b { position: absolute; left: 0; top: 0; width: 1px; height: 11.111%; background: var(--cyan); transition: height .55s ease; box-shadow: 0 0 8px var(--cyan); }

@media (max-height: 730px) {
  .slide { padding-top: max(28px, env(safe-area-inset-top)); padding-bottom: max(24px, env(safe-area-inset-bottom)); }
  h1 { font-size: clamp(38px, 10.5vw, 58px); }
  h2 { font-size: clamp(30px, 8.4vw, 48px); margin-bottom: 13px; }
  .lead { font-size: 14px; line-height: 1.55; }
  .advantage { padding: 9px 12px; }
  .business-orbit { width: min(70vw, 300px); }
  .system-visual { max-height: 160px; }
  .opc-visual { max-height: 190px; }
  .qr-card { width: min(56vw, 230px); }
  .cooperation-list { margin-top: 18px; gap: 6px; }
  .cooperation-list span { padding-top: 10px; padding-bottom: 10px; }
}

@media (min-width: 720px) {
  .progress { right: 28px; }
  .advantage-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}