:root {
  color-scheme: dark;
  --bg: #070a0d;
  --panel: rgba(17, 24, 31, 0.72);
  --panel-strong: rgba(25, 35, 45, 0.92);
  --line: rgba(174, 232, 255, 0.16);
  --text: #edf7f8;
  --muted: #94a7ad;
  --dim: #64767d;
  --cyan: #38d8ff;
  --green: #73ffbf;
  --blue: #6aa7ff;
  --amber: #ffd27a;
  --danger: #ff7a7a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 18% 12%, rgba(56, 216, 255, 0.16), transparent 30%),
    radial-gradient(circle at 92% 4%, rgba(115, 255, 191, 0.11), transparent 28%),
    linear-gradient(180deg, #071015 0%, #070a0d 38%, #090d10 100%);
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(174, 232, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(174, 232, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image: radial-gradient(rgba(255, 255, 255, 0.18) 0.7px, transparent 0.7px);
  background-size: 3px 3px;
  opacity: 0.12;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-shell {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 12px;
  margin: 18px 0 56px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 10, 13, 0.74);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.nav-cta {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(115, 255, 191, 0.42);
  border-radius: 50%;
  color: var(--green);
  background: rgba(115, 255, 191, 0.08);
  font-size: 12px;
}

.nav-links {
  gap: 22px;
  color: var(--muted);
  font-size: 13px;
}

.nav-links a:hover,
.text-link:hover {
  color: var(--green);
}

.nav-cta {
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(56, 216, 255, 0.1);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
}

.hero {
  min-height: calc(100vh - 132px);
  align-items: center;
  padding-bottom: 96px;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.86fr);
  gap: 54px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  max-width: 100%;
  padding: 8px 13px;
  border: 1px solid rgba(115, 255, 191, 0.28);
  border-radius: 999px;
  background: rgba(115, 255, 191, 0.08);
  color: #cafde7;
  font-size: 13px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(115, 255, 191, 0.62);
  animation: pulse 2s infinite;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-family: "DIN Condensed", "Arial Narrow", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 800px;
  margin: 22px 0 22px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(46px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 0;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(32px, 4.8vw, 58px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  font-size: 22px;
  line-height: 1.25;
}

.hero-lede {
  max-width: 680px;
  color: #c8d8dc;
  font-size: 18px;
}

.hero-actions,
.contact-actions,
.case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.04);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button.primary {
  border-color: rgba(115, 255, 191, 0.48);
  background: linear-gradient(135deg, rgba(115, 255, 191, 0.92), rgba(56, 216, 255, 0.86));
  color: #031112;
}

.button.primary::after {
  position: absolute;
  inset: -80% -20%;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.58), transparent);
  transform: translateX(-110%) rotate(14deg);
  transition: transform 560ms ease;
}

.button.primary:hover::after {
  transform: translateX(110%) rotate(14deg);
}

.button.ghost:hover,
.button.quiet:hover,
.button.primary:hover {
  transform: translateY(-2px);
}

.button[aria-disabled="true"] {
  color: var(--dim);
  cursor: not-allowed;
}

.button.quiet {
  color: #d8e5e8;
  border-color: rgba(174, 232, 255, 0.22);
}

.hero-panel {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(56, 216, 255, 0.09), transparent 38%),
    rgba(13, 18, 23, 0.72);
  box-shadow: var(--shadow);
}

.hero-panel::before,
.case-media::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  opacity: 0.5;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  min-width: 0;
  min-height: 174px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
}

.metric-card.strong {
  grid-row: span 2;
  min-height: 360px;
  background:
    radial-gradient(circle at 70% 16%, rgba(115, 255, 191, 0.22), transparent 36%),
    rgba(255, 255, 255, 0.06);
}

.metric-card span,
.case-kicker,
.metric-card p {
  color: var(--muted);
}

.metric-card strong {
  display: block;
  margin: 14px 0 8px;
  max-width: 100%;
  color: var(--text);
  font-family: "DIN Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(38px, 4.1vw, 52px);
  font-variant-numeric: tabular-nums;
  line-height: 0.9;
  white-space: nowrap;
}

.metric-card.strong strong {
  font-size: clamp(40px, 4vw, 50px);
}

.metric-card p {
  margin-bottom: 0;
  font-size: 14px;
  overflow-wrap: anywhere;
}

.route-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.route-line span::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--cyan);
  content: "";
  box-shadow: 0 0 14px rgba(56, 216, 255, 0.8);
}

section {
  padding: 92px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 34px;
}

.fit-grid,
.case-grid,
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.fit-card,
.case-card,
.method-grid article,
.contact-section,
.artifact,
.process-card,
.detail-card,
.tools-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 16px 54px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
}

.fit-card,
.method-grid article,
.tools-section {
  padding: 24px;
}

.fit-card {
  min-height: 250px;
}

.fit-card span {
  color: var(--cyan);
  font-family: "DIN Condensed", "Arial Narrow", sans-serif;
  font-size: 44px;
}

.fit-card p,
.method-grid p,
.case-card p,
.timeline-item p,
.contact-section p,
.detail-card p,
.process-card p,
.artifact p {
  color: var(--muted);
}

.capability-grid {
  display: grid;
  grid-template-columns: minmax(190px, 0.36fr) minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.capability-key,
.capability-copy {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.capability-key {
  color: var(--green);
  font-weight: 900;
}

.capability-copy {
  color: #d2dee1;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item time {
  color: var(--cyan);
  font-family: "DIN Condensed", "Arial Narrow", sans-serif;
  font-size: 24px;
}

.case-card {
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(115, 255, 191, 0.36);
}

.case-card.featured {
  grid-column: span 2;
}

.case-media {
  position: relative;
  min-height: 220px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(56, 216, 255, 0.22), transparent 42%),
    linear-gradient(45deg, rgba(115, 255, 191, 0.14), transparent 48%),
    #0d151a;
}

.case-media.blueprint {
  background-image:
    linear-gradient(rgba(115, 255, 191, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 216, 255, 0.16) 1px, transparent 1px),
    url("新单据结构.png");
  background-size: 34px 34px, 34px 34px, cover;
  background-position: center;
  background-blend-mode: screen, screen, normal;
}

.case-media.health {
  background-image:
    linear-gradient(180deg, rgba(7, 10, 13, 0.1), rgba(7, 10, 13, 0.84)),
    url("IMG_6109.PNG");
  background-size: cover;
  background-position: center 18%;
}

.case-media.ai {
  background:
    radial-gradient(circle at 26% 28%, rgba(115, 255, 191, 0.22), transparent 25%),
    radial-gradient(circle at 72% 32%, rgba(56, 216, 255, 0.22), transparent 24%),
    linear-gradient(135deg, rgba(255, 210, 122, 0.14), rgba(12, 20, 25, 0.8));
}

.case-body {
  padding: 24px;
}

.case-body dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0;
}

.case-body dl div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

dt {
  color: var(--dim);
  font-size: 12px;
}

dd {
  margin: 0;
  color: var(--green);
  font-weight: 900;
}

.text-link {
  color: var(--cyan);
  font-weight: 900;
}

.tool-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tool-cloud span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: #d8e5e8;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 34px;
  margin-bottom: 80px;
  background:
    radial-gradient(circle at 84% 24%, rgba(115, 255, 191, 0.14), transparent 28%),
    var(--panel-strong);
}

.contact-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  color: #d7e5e8;
}

.contact-list span:first-child {
  min-width: 38px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.contact-list a:hover {
  color: var(--cyan);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  padding: 12px 14px;
  border: 1px solid rgba(115, 255, 191, 0.34);
  border-radius: var(--radius);
  background: rgba(10, 18, 20, 0.92);
  color: var(--text);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

.case-hero {
  padding: 36px 0 76px;
}

.breadcrumb {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
}

.case-hero h1 {
  max-width: 920px;
}

.case-summary {
  display: grid;
  grid-template-columns: 1fr 0.84fr;
  gap: 18px;
  margin-top: 34px;
}

.detail-card,
.process-card,
.artifact {
  padding: 24px;
}

.proof-grid,
.process-grid,
.artifact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.platform-proof {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
  margin-bottom: 16px;
  border: 1px solid rgba(56, 216, 255, 0.22);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(56, 216, 255, 0.13), transparent 42%),
    var(--panel);
  box-shadow: 0 16px 54px rgba(0, 0, 0, 0.22);
}

.platform-proof h3 {
  margin-bottom: 8px;
}

.platform-proof p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
}

.platform-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.artifact-wide {
  overflow: hidden;
}

.scroll-shot {
  max-height: 560px;
  margin-top: 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
}

.process-card strong {
  color: var(--green);
}

.proof-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.proof-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: #d7e5e8;
}

.artifact img {
  width: 100%;
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.scroll-shot img {
  margin-top: 0;
  border: 0;
  border-radius: 0;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 10px rgba(115, 255, 191, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(115, 255, 191, 0);
  }
}

@media (max-width: 920px) {
  .site-shell {
    width: min(100% - 24px, var(--max));
  }

  .topbar {
    align-items: flex-start;
    border-radius: var(--radius);
  }

  .nav-links {
    display: none;
  }

  .section-grid,
  .fit-grid,
  .case-grid,
  .method-grid,
  .contact-section,
  .case-summary,
  .proof-grid,
  .process-grid,
  .artifact-grid {
    grid-template-columns: 1fr;
  }

  .platform-proof {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: auto;
  }

  .case-card.featured {
    grid-column: auto;
  }

  .timeline-item,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  .capability-key {
    padding-bottom: 4px;
    border-bottom: 0;
  }

  .capability-copy {
    padding-top: 0;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }

  .metric-card.strong {
    grid-row: auto;
    min-height: 210px;
  }

  h1 {
    font-size: 48px;
  }
}

@media (max-width: 520px) {
  .topbar {
    margin-bottom: 42px;
  }

  .nav-cta {
    display: none;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 32px;
  }

  section {
    padding: 64px 0;
  }

  .case-body dl,
  .route-line {
    grid-template-columns: 1fr;
  }

  .route-line {
    align-items: flex-start;
    flex-direction: column;
    border-radius: var(--radius);
  }
}