:root {
  color-scheme: dark;
  --bg: #050706;
  --bg-2: #0a0f0d;
  --panel: rgba(18, 24, 21, 0.86);
  --panel-solid: #111714;
  --ink: #f5fbf7;
  --muted: #9aa7a0;
  --line: rgba(226, 242, 234, 0.13);
  --green: #76b900;
  --green-soft: #a7ef4d;
  --blue: #39bdf8;
  --purple: #b98cff;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.44);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, transparent, black 10%, black 86%, transparent);
  pointer-events: none;
}

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

img {
  max-width: 100%;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 22px;
  min-height: 72px;
  padding: 0 clamp(18px, 5vw, 72px);
  background: rgba(5, 7, 6, 0.76);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.hero-metrics,
.solution-row,
.tags,
.ecosystem {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  min-width: 0;
  font-weight: 760;
}

.brand strong {
  color: var(--green-soft);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--green);
  color: #071006;
  font-size: 13px;
  font-weight: 900;
}

.nav-links {
  justify-content: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover,
.nav-action:hover,
.site-footer a:hover {
  color: var(--green-soft);
}

.nav-action {
  justify-self: end;
  color: var(--green-soft);
  font-weight: 760;
  font-size: 14px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: 92vh;
  padding: 108px clamp(18px, 6vw, 88px) 52px;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -12% 0 -12%;
  height: 34%;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  top: 14%;
  left: 8%;
  width: 42vw;
  height: 42vw;
  max-width: 560px;
  max-height: 560px;
  background: radial-gradient(circle, rgba(118, 185, 0, 0.16), transparent 64%);
  filter: blur(20px);
  pointer-events: none;
}

.hero-content,
.hero-visual {
  position: relative;
  z-index: 1;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  padding: 7px 11px;
  border: 1px solid rgba(118, 185, 0, 0.36);
  border-radius: 999px;
  background: rgba(118, 185, 0, 0.08);
  color: var(--green-soft);
  font-size: 12px;
  font-weight: 800;
}

.pill span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(118, 185, 0, 0.12);
}

.eyebrow {
  margin: 0;
  color: var(--green-soft);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
small,
strong {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(42px, 6.1vw, 76px);
  line-height: 0.96;
  font-weight: 880;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.06;
  font-weight: 840;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.24;
}

.hero-copy {
  max-width: 700px;
  margin: 20px 0 0;
  color: #d7e4dd;
  font-size: 18px;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
  white-space: nowrap;
}

.button.primary {
  background: var(--green);
  color: #071006;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--ink);
}

.button:hover,
.text-link:hover,
.ecosystem a:hover {
  transform: translateY(-1px);
}

.hero-metrics {
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
}

.hero-metrics div {
  min-width: 150px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--green);
  border-radius: 8px;
  background: rgba(17, 23, 20, 0.74);
}

.hero-metrics dt {
  font-size: 24px;
  line-height: 1;
  font-weight: 880;
}

.hero-metrics dd {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #1a201c, #050706);
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 10;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.82), transparent 48%);
  pointer-events: none;
}

.hero-visual figcaption {
  position: absolute;
  z-index: 2;
  left: 24px;
  bottom: 24px;
  display: grid;
  gap: 2px;
}

.hero-visual span {
  color: var(--green-soft);
  font-size: 11px;
  font-weight: 850;
}

.hero-visual strong {
  font-size: 28px;
}

.hero-visual small {
  color: var(--muted);
}

.section {
  padding: clamp(72px, 9vw, 122px) clamp(18px, 6vw, 88px);
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 36px;
}

.section-heading.center {
  justify-items: center;
  text-align: center;
}

.section-heading p:not(.eyebrow),
.model-note {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.specs {
  background: var(--panel-solid);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.spec-card {
  min-height: 250px;
  padding: 26px;
  background: #080c0a;
  border-right: 1px solid var(--line);
}

.spec-card:last-child {
  border-right: 0;
}

.spec-icon,
.box-mark,
.ecosystem span {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 8px;
  font-weight: 900;
}

.spec-icon {
  margin-bottom: 34px;
  color: var(--green-soft);
  border: 1px solid rgba(118, 185, 0, 0.28);
  background: rgba(118, 185, 0, 0.08);
}

.spec-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.spec-card em {
  display: inline-flex;
  padding: 4px 8px;
  border: 1px solid rgba(118, 185, 0, 0.24);
  border-radius: 6px;
  color: var(--green-soft);
  background: rgba(118, 185, 0, 0.06);
  font-size: 12px;
  font-style: normal;
  font-weight: 760;
}

.model-note {
  margin: 26px auto 0;
  text-align: center;
}

.solutions {
  background: #f5f3ea;
  color: #071006;
}

.solutions .eyebrow {
  color: #477800;
}

.solution-row {
  align-items: stretch;
  gap: 16px;
}

.solution-row article {
  flex: 1 1 0;
  padding: 24px;
  border: 1px solid rgba(7, 16, 6, 0.12);
  border-radius: 8px;
  background: #ffffff;
}

.solution-row p {
  margin: 0;
  color: #5d6962;
}

.boxes {
  background:
    radial-gradient(circle at 85% 20%, rgba(57, 189, 248, 0.1), transparent 28%),
    var(--bg);
}

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

.box-card {
  position: relative;
  min-height: 340px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.box-card::after {
  content: "译";
  position: absolute;
  top: -28px;
  right: 18px;
  color: rgba(255, 255, 255, 0.035);
  font-size: 160px;
  line-height: 1;
  font-weight: 900;
}

.box-card.accent::after {
  content: "审";
}

.box-mark {
  margin-bottom: 22px;
  color: white;
  font-size: 24px;
}

.box-mark.green {
  background: linear-gradient(135deg, var(--green), #245d1f);
}

.box-mark.blue {
  background: linear-gradient(135deg, var(--blue), #0e4e92);
}

.tags {
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 22px;
}

.tags span {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: #cbd8d1;
  font-size: 12px;
}

.box-card p {
  position: relative;
  z-index: 1;
  margin: 0 0 28px;
  color: var(--muted);
}

.text-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--green-soft);
  font-weight: 760;
  transition: transform 160ms ease, border-color 160ms ease;
}

.ecosystem {
  gap: 18px;
  margin-top: 18px;
}

.ecosystem a {
  flex: 1 1 0;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  min-height: 112px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  transition: transform 160ms ease, border-color 160ms ease;
}

.ecosystem a:hover {
  border-color: rgba(118, 185, 0, 0.45);
}

.ecosystem span {
  grid-row: span 2;
  color: var(--green-soft);
  border: 1px solid rgba(118, 185, 0, 0.24);
  background: rgba(118, 185, 0, 0.08);
}

.ecosystem strong {
  align-self: end;
  font-size: 18px;
}

.ecosystem small {
  align-self: start;
  color: var(--muted);
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(28px, 6vw, 88px);
  align-items: center;
  padding: clamp(70px, 8vw, 112px) clamp(18px, 6vw, 88px);
  background: var(--panel-solid);
  border-top: 1px solid var(--line);
}

.contact-copy p:not(.eyebrow) {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
}

.contact-copy ul {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  color: #d8e5de;
  list-style: none;
}

.contact-copy li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--green);
}

.qr-card {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: #071006;
  box-shadow: var(--shadow);
}

.qr-card img {
  display: block;
  width: 180px;
  height: 180px;
  object-fit: contain;
}

.qr-card figcaption {
  margin-top: 10px;
  color: #3d473f;
  font-size: 13px;
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(18px, 6vw, 88px);
  border-top: 1px solid var(--line);
  background: #020302;
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 108px;
  }

  .hero-visual {
    order: -1;
    max-height: 520px;
  }

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

  .spec-card:nth-child(2) {
    border-right: 0;
  }

  .spec-card:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .solution-row,
  .ecosystem {
    flex-direction: column;
  }

  .ecosystem a,
  .solution-row article {
    width: 100%;
  }

  .qr-card {
    justify-self: start;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 64px;
    padding: 0 16px;
  }

  .brand {
    font-size: 14px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .nav-action {
    font-size: 13px;
  }

  .hero,
  .section,
  .contact-band {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero {
    padding-top: 94px;
    min-height: auto;
  }

  .hero-visual {
    aspect-ratio: 4 / 3;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 32px;
  }

  .hero-copy,
  .section-heading p:not(.eyebrow) {
    font-size: 16px;
  }

  .button {
    width: 100%;
  }

  .hero-metrics div,
  .spec-grid,
  .box-grid {
    width: 100%;
  }

  .spec-grid,
  .box-grid {
    grid-template-columns: 1fr;
  }

  .spec-card,
  .spec-card:nth-child(2),
  .spec-card:nth-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .spec-card:last-child {
    border-bottom: 0;
  }

  .box-card {
    min-height: auto;
    padding: 24px;
  }

  .ecosystem a {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .ecosystem span {
    width: 44px;
    height: 44px;
  }

  .site-footer {
    flex-direction: column;
  }
}