:root {
  color-scheme: dark;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color: #edf6ff;
  background: radial-gradient(circle at top left, rgba(72, 165, 226, .18), transparent 30%),
    radial-gradient(circle at top right, rgba(109, 216, 241, .12), transparent 25%),
    linear-gradient(180deg, #050a14, #091423 36%, #0a192a);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: transparent;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }

.particle-network {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -2;
  pointer-events: none;
}
.particle-network__canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.page-shell {
  --bg-deep: #06101c;
  --bg-panel: #0a1828;
  --bg-panel-strong: #0b2134;
  --accent-soft: #8dd8f5;
  --accent-main: #5cb8ff;
  --accent-bright: #7fd7ff;
  --border-soft: rgba(123, 177, 230, .14);
  --border-strong: rgba(134, 203, 245, .28);
  --text-main: #edf6ff;
  --text-muted: rgba(220, 233, 248, .76);
  position: relative;
  overflow: clip;
  isolation: isolate;
}
.page-background {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -3;
  background: linear-gradient(115deg, rgba(6,16,28,.9), rgba(8,20,34,.52)),
    linear-gradient(transparent 95%, rgba(92,184,255,.05) 95%);
  background-size: auto, 100% 48px;
  pointer-events: none;
}
.page-background::before,
.page-background::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(70px);
  opacity: .55;
}
.page-background::before {
  top: 6%;
  left: -8%;
  width: 320px;
  height: 320px;
  background: rgba(79,177,235,.28);
}
.page-background::after {
  right: -4%;
  top: 18%;
  width: 260px;
  height: 260px;
  background: rgba(118,222,240,.16);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .68rem clamp(.9rem, 2vw, 1.45rem);
  background: rgba(6, 16, 28, .22);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: padding .2s ease, background-color .2s ease, border-color .2s ease;
}
.topbar--scrolled {
  background: rgba(6, 16, 28, .5);
  border-bottom: 1px solid rgba(123,177,230,.12);
}
.brand-mark {
  display: flex;
  align-items: center;
  gap: .7rem;
  min-width: 0;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.brand-mark__logo {
  width: clamp(2.4rem, 3vw, 3rem);
  height: clamp(2.4rem, 3vw, 3rem);
  object-fit: contain;
  flex: 0 0 auto;
  filter: drop-shadow(0 10px 22px rgba(8,24,44,.28));
}
.brand-mark__title {
  margin: 0;
  color: var(--text-main);
  font-size: clamp(1.125rem, 1.6vw, 1.305rem);
  font-weight: 700;
  letter-spacing: .08em;
}
.nav-strip {
  display: flex;
  gap: .55rem;
  overflow-x: auto;
  padding-bottom: .12rem;
  scrollbar-width: none;
}
.nav-strip::-webkit-scrollbar { display: none; }
.nav-chip {
  flex: 0 0 auto;
  padding: .58rem .86rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(10, 24, 40, .52);
  color: rgba(233,242,251,.86);
  font: inherit;
  font-size: .84rem;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.nav-chip:hover,
.nav-chip:focus-visible {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  background: rgba(11, 33, 54, .84);
  color: var(--text-main);
  box-shadow: 0 10px 28px rgba(18,65,116,.18);
}
.nav-chip--active {
  border-color: rgba(127,215,255,.46);
  background: linear-gradient(135deg, rgba(30,96,164,.88), rgba(74,173,216,.72));
  color: var(--text-main);
}

.page-main {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 5rem;
}
.section-block {
  padding: clamp(4.25rem, 7vw, 6.5rem) 0;
}
.section-block--hero {
  min-height: calc(100vh - 84px);
  display: grid;
  align-items: center;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(2rem, 4vw, 4rem);
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1rem;
  color: var(--accent-soft);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.section-tag::before {
  content: "";
  width: 2.6rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(141,216,245,.16), rgba(141,216,245,.9));
}
.hero__title,
.section-heading h2,
.business-card h3 {
  margin: 0;
  color: var(--text-main);
}
.hero__title {
  max-width: 10ch;
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: .96;
  letter-spacing: -.05em;
}
.hero__description {
  max-width: 42rem;
  margin: 1.35rem 0 0;
  color: rgba(227,238,249,.8);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
}
.hero__visual { position: relative; }
.hero__visual::before {
  content: "";
  position: absolute;
  inset: 12% auto auto 4%;
  width: 90%;
  height: 74%;
  border-radius: 2rem;
  background: linear-gradient(135deg, rgba(92,184,255,.1), rgba(141,216,245,.05));
  filter: blur(10px);
}
.hero__image-frame {
  position: relative;
  padding: clamp(1.2rem, 2vw, 1.8rem);
  border: 1px solid var(--border-soft);
  border-radius: 2rem;
  background: linear-gradient(145deg, var(--bg-panel-strong), var(--bg-panel)), linear-gradient(180deg, rgba(255,255,255,.02), transparent);
  box-shadow: 0 18px 40px rgba(2,10,19,.24), 0 0 0 1px rgba(255,255,255,.03) inset;
}
.hero-dashboard {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.hero-dashboard__header {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.hero-dashboard__eyebrow,
.hero-dashboard__title { margin: 0; }
.hero-dashboard__eyebrow {
  color: var(--accent-soft);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.hero-dashboard__title {
  font-size: clamp(1.3rem, 2.1vw, 1.8rem);
  font-weight: 700;
  color: var(--text-main);
}
.hero-dashboard__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.hero-dashboard__stat {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: .85rem;
  min-height: 8.25rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  background: var(--bg-panel);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}
.hero-dashboard__stat:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-panel-strong);
  box-shadow: 0 20px 42px rgba(7,23,41,.32);
}
.hero-dashboard__label {
  color: var(--text-muted);
  font-size: .92rem;
}
.hero-dashboard__value {
  color: var(--accent-bright);
  font-size: clamp(1.85rem, 2.8vw, 2.35rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}
.hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.metric-card {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  background: var(--bg-panel);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}
.metric-card:hover {
  transform: translateY(-4px);
  border-color: rgba(134,203,245,.24);
  background: var(--bg-panel-strong);
  box-shadow: 0 18px 38px rgba(8,23,40,.32);
}
.metric-card__value {
  display: block;
  color: var(--accent-bright);
  font-size: 1.35rem;
  font-weight: 700;
}
.metric-card__label {
  display: block;
  margin-top: .35rem;
  color: var(--text-muted);
  font-size: .92rem;
}

.section-heading {
  max-width: 40rem;
  margin-bottom: 2rem;
}
.section-heading--wide { max-width: 52rem; }
.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.08;
}
.section-intro {
  margin: 1rem 0 0;
  color: var(--text-muted);
}
.capability-grid,
.operations-grid { display: grid; gap: 1.1rem; }
.capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.capability-card,
.operation-card,
.future-panel,
.business-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--bg-panel-strong), var(--bg-panel)), rgba(255,255,255,.012);
  box-shadow: 0 18px 45px rgba(4,12,22,.2);
}
.tilt-card {
  --card-rotate-x: 0deg;
  --card-rotate-y: 0deg;
  --card-glow-x: 50%;
  --card-glow-y: 50%;
}
.capability-card,
.operation-card,
.future-panel,
.business-card {
  border-radius: 1.6rem;
  animation: rise-in .7s ease both;
  transform: perspective(1200px) rotateX(var(--card-rotate-x)) rotateY(var(--card-rotate-y));
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform .18s ease, border-color .24s ease, box-shadow .24s ease, background-color .24s ease;
}
.capability-card:hover,
.operation-card:hover,
.future-panel:hover,
.business-card:hover {
  transform: perspective(1200px) translateY(-8px) rotateX(var(--card-rotate-x)) rotateY(var(--card-rotate-y));
  border-color: rgba(134,203,245,.22);
  box-shadow: 0 24px 52px rgba(5,14,26,.24);
}
.capability-card::after,
.operation-card::after,
.future-panel::after,
.business-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--card-glow-x) var(--card-glow-y), rgba(127,215,255,.16), transparent 42%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}
.capability-card:hover::after,
.operation-card:hover::after,
.future-panel:hover::after,
.business-card:hover::after { opacity: 1; }
.capability-card { min-height: 18rem; padding: 1.5rem; }

.capability-card:nth-child(1) { animation-delay: 0ms; }
.capability-card:nth-child(2) { animation-delay: 90ms; }
.capability-card:nth-child(3) { animation-delay: 180ms; }
.capability-card:nth-child(4) { animation-delay: 270ms; }
.operation-card:nth-child(1) { animation-delay: 0ms; }
.operation-card:nth-child(2) { animation-delay: 70ms; }
.operation-card:nth-child(3) { animation-delay: 140ms; }
.operation-card:nth-child(4) { animation-delay: 210ms; }
.operation-card:nth-child(5) { animation-delay: 280ms; }
.operation-card:nth-child(6) { animation-delay: 350ms; }
.operation-card:nth-child(7) { animation-delay: 420ms; }
.operation-card:nth-child(8) { animation-delay: 490ms; }
.capability-card__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 198px;
  align-items: end;
  gap: 1rem;
  height: 100%;
}
.capability-card__content { align-self: start; }
.capability-card__visual {
  display: grid;
  place-items: center;
  align-self: end;
  min-height: 198px;
  padding: .6rem;
  border: 1px solid rgba(167,213,236,.22);
  border-radius: 1.25rem;
  background: linear-gradient(180deg, rgba(237,245,250,.96), rgba(219,231,241,.9));
  box-shadow: 0 18px 36px rgba(4,12,22,.2), inset 0 1px rgba(255,255,255,.64);
  transition: transform .24s ease, box-shadow .24s ease;
}
.capability-card:hover .capability-card__visual {
  transform: translate3d(0, -4px, 28px) scale(1.02);
  box-shadow: 0 24px 44px rgba(4,12,22,.24), inset 0 1px rgba(255,255,255,.72);
}
.capability-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .24s ease;
}
.capability-card:hover .capability-card__visual img { transform: scale(1.03); }
.capability-card::before,
.operation-card::before,
.future-panel::before,
.business-card::before {
  content: "";
  position: absolute;
  inset: auto auto 0 -8%;
  width: 11rem;
  height: 11rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(92,184,255,.18), transparent 68%);
  pointer-events: none;
}
.capability-card__index {
  margin: 0 0 2rem;
  color: rgba(148,194,222,.34);
  font-size: .85rem;
  letter-spacing: .3em;
}
.capability-card h3,
.operation-card h3 {
  margin: 0 0 1rem;
  color: var(--accent-main);
  font-size: 1.35rem;
}
.capability-card p,
.operation-card p,
.future-panel p,
.business-card dd {
  margin: 0;
  color: rgba(239,246,251,.92);
}
.capability-card p + p,
.future-panel p + p { margin-top: .55rem; }
.operations-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.operation-card {
  min-height: 15.5rem;
  padding: 1.4rem;
  border-radius: 1.5rem;
}
.operation-card__icon {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1.15rem;
  border: 1px solid rgba(134,203,245,.18);
  border-radius: 1.1rem;
  background: linear-gradient(180deg, rgba(13,42,72,.94), rgba(10,25,43,.88));
  font-size: 1.9rem;
  line-height: 1;
  box-shadow: inset 0 1px rgba(255,255,255,.05);
  transform: translateZ(22px);
}
.business-list {
  display: grid;
  gap: 1.4rem;
}
.business-card {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 1.6rem;
  padding: clamp(1rem, 2vw, 1.5rem);
  border-radius: 1.8rem;
  animation: rise-in .76s ease both;
}
.business-card--order-1,
.business-card--order-3 {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
}
.business-card--order-1 .business-card__media,
.business-card--order-3 .business-card__media { order: 2; }
.business-card__media {
  display: grid;
  place-items: center;
  overflow: hidden;
  min-height: clamp(240px, 26vw, 360px);
  padding: clamp(.8rem, 1.4vw, 1.1rem);
  border-radius: 1.3rem;
  border: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)), var(--bg-panel);
}
.business-card__media img {
  width: 100%;
  height: auto;
  max-height: clamp(220px, 24vw, 330px);
  object-fit: contain;
  border-radius: 1rem;
  transition: transform .32s ease;
}
.business-card:hover .business-card__media img { transform: scale(1.015); }
.business-card__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.business-card__eyebrow {
  margin: 0 0 .75rem;
  color: var(--accent-soft);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.business-card h3 { font-size: clamp(1.6rem, 2.4vw, 2.5rem); }
.business-card__summary { margin: 1.3rem 0 0; }
.business-card__row + .business-card__row { margin-top: 1rem; }
.business-card dt {
  margin-bottom: .35rem;
  color: var(--accent-bright);
  font-weight: 700;
}
.business-card dd { line-height: 1.75; }
.section-block--future { padding-bottom: 3rem; }
.future-panel {
  padding: clamp(1.4rem, 2vw, 2rem);
  border-radius: 1.8rem;
}
.future-slide {
  padding-top: 0;
}
.future-slide__image {
  width: 100%;
  border-radius: 1.8rem;
  border: 1px solid var(--border-soft);
  box-shadow: 0 22px 52px rgba(4,12,22,.24);
  object-fit: cover;
}
.site-footer {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
  border-top: 1px solid rgba(123,177,230,.1);
  color: rgba(204,221,239,.66);
  font-size: .92rem;
  text-align: center;
}
.site-footer p { margin: 0; }
.site-footer__contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem 1.4rem;
  margin-bottom: .7rem;
  color: rgba(226,239,250,.82);
  line-height: 1.7;
}
.site-footer__contact a {
  color: var(--accent-soft);
  transition: color .2s ease;
}
.site-footer__contact a:hover { color: var(--accent-bright); }
.wechat-float {
  position: fixed;
  right: clamp(.75rem, 1.6vw, 1.4rem);
  top: 52%;
  z-index: 60;
  display: grid;
  gap: .55rem;
  justify-items: center;
  transform: translateY(-50%);
}
.wechat-float__icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid rgba(134,203,245,.26);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(16, 128, 92, .94), rgba(12, 88, 68, .94));
  color: #fff;
  box-shadow: 0 14px 34px rgba(2, 10, 19, .3), inset 0 1px rgba(255,255,255,.18);
}
.wechat-float__icon svg {
  width: 1.55rem;
  height: 1.55rem;
  fill: currentColor;
}
.wechat-float__panel {
  position: absolute;
  right: calc(100% + .7rem);
  top: 50%;
  width: 7.5rem;
  padding: .5rem;
  border: 1px solid rgba(134,203,245,.2);
  border-radius: 1rem;
  background: rgba(7, 18, 31, .84);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 44px rgba(2, 10, 19, .34), inset 0 1px rgba(255,255,255,.05);
  opacity: 0;
  pointer-events: none;
  transform: translate(10px, -50%);
  transition: opacity .2s ease, transform .2s ease;
}
.wechat-float:hover .wechat-float__panel,
.wechat-float:focus-within .wechat-float__panel {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, -50%);
}
.wechat-float__panel img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: .65rem;
  background: #fff;
}
.simple-page { padding-top: 2rem; }
.content-body { color: rgba(239,246,251,.9); }

@keyframes rise-in {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1279px) {
  .hero,
  .business-card,
  .business-card--order-1,
  .business-card--order-3 {
    grid-template-columns: 1fr;
  }
  .business-card--order-1 .business-card__media,
  .business-card--order-3 .business-card__media { order: initial; }
  .operations-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .topbar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding-inline: 1rem;
  }
  .brand-mark {
    flex: 0 0 auto;
    min-width: auto;
  }
  .nav-strip {
    flex: 0 0 auto;
    margin-inline: 0;
    padding-bottom: 0;
  }
  .page-main { width: min(100% - 1.25rem, 100%); }
  .section-block { padding: 3.5rem 0; }
  .section-block--hero {
    min-height: auto;
    padding-top: 2.6rem;
  }
  .hero__title { max-width: none; }
  .brand-mark__title {
    font-size: 1.085rem;
    letter-spacing: .06em;
  }
  .brand-mark__logo {
    width: 2.2rem;
    height: 2.2rem;
  }
  .nav-chip {
    padding: .5rem .74rem;
    font-size: .78rem;
  }
  .capability-grid,
  .operations-grid,
  .hero__metrics,
  .hero-dashboard__grid,
  .capability-card__body {
    grid-template-columns: 1fr;
  }
  .capability-card__visual {
    max-width: 246px;
    justify-self: end;
  }
  .capability-card,
  .operation-card,
  .future-panel,
  .business-card {
    border-radius: 1.35rem;
  }
  .future-slide__image {
    border-radius: 1.35rem;
  }
  .site-footer { padding-top: 1.2rem; }
  .site-footer__contact {
    flex-direction: column;
    align-items: center;
    gap: .2rem;
  }
  .wechat-float {
    right: .55rem;
    top: auto;
    bottom: .75rem;
    transform: none;
  }
  .wechat-float__icon {
    width: 2.5rem;
    height: 2.5rem;
  }
  .wechat-float__icon svg {
    width: 1.3rem;
    height: 1.3rem;
  }
  .wechat-float__panel {
    right: 0;
    top: auto;
    bottom: calc(100% + .55rem);
    width: 5.5rem;
    padding: .38rem;
    border-radius: .85rem;
    transform: translateY(10px);
  }
  .wechat-float:hover .wechat-float__panel,
  .wechat-float:focus-within .wechat-float__panel {
    transform: translateY(0);
  }
}

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