:root {
  --bg: #f3f9ff;
  --bg-soft: #eaf5ff;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --ink: #11254b;
  --muted: #5c739a;
  --line: rgba(45, 111, 227, 0.14);
  --line-strong: rgba(45, 111, 227, 0.28);
  --brand: #1565ff;
  --brand-soft: #e5efff;
  --brand-deep: #0f4bc3;
  --accent: #33c2ff;
  --accent-soft: rgba(51, 194, 255, 0.16);
  --shadow-lg: 0 28px 70px rgba(19, 58, 134, 0.12);
  --shadow-md: 0 16px 36px rgba(19, 58, 134, 0.1);
  --shadow-sm: 0 8px 22px rgba(19, 58, 134, 0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --font-head: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 10% 4%, rgba(51, 194, 255, 0.18), transparent 24%),
    radial-gradient(circle at 92% 10%, rgba(21, 101, 255, 0.14), transparent 22%),
    linear-gradient(180deg, #eef7ff 0%, #f7fbff 40%, #ffffff 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(47, 111, 227, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 111, 227, 0.04) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 90%);
  z-index: -3;
}

.page-glow {
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 999px;
  filter: blur(70px);
  pointer-events: none;
  z-index: -2;
  animation: floatGlow 12s ease-in-out infinite;
}

.glow-a {
  top: 60px;
  left: -120px;
  background: rgba(21, 101, 255, 0.18);
}

.glow-b {
  right: -120px;
  bottom: 80px;
  background: rgba(51, 194, 255, 0.18);
  animation-delay: 3.2s;
}

@keyframes floatGlow {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-18px) scale(1.04);
  }
}

.site-header,
main,
.site-footer {
  width: min(1220px, calc(100vw - 28px));
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 30;
  margin-top: 14px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(74, 137, 243, 0.18);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}

.brand img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid rgba(21, 101, 255, 0.14);
  box-shadow: 0 10px 22px rgba(21, 101, 255, 0.14);
}

.brand strong,
.hero h1,
.hero-brand-card h3,
.section-head h2,
.detail-panel h3,
.value-card h3,
.project-card h3,
.platform-card h3,
.service-card h3,
.trust-note h3,
.contact-card h3,
.hero-visual-card h3 {
  font-family: var(--font-head);
}

.brand strong {
  display: block;
  font-size: 1.04rem;
  letter-spacing: 0.04em;
}

.brand span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover {
  color: var(--brand);
  background: rgba(21, 101, 255, 0.08);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

main {
  margin-top: 22px;
  padding-bottom: 36px;
}

.section {
  margin-bottom: 18px;
  padding: 34px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(62, 128, 238, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 250, 255, 0.96));
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.hero {
  position: relative;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  background:
    radial-gradient(circle at 82% 14%, rgba(51, 194, 255, 0.14), transparent 28%),
    radial-gradient(circle at 8% 2%, rgba(21, 101, 255, 0.12), transparent 26%),
    linear-gradient(135deg, #f5fbff 0%, #eef7ff 46%, #ffffff 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(21, 101, 255, 0.04), transparent 38%),
    linear-gradient(180deg, transparent, rgba(51, 194, 255, 0.03));
}

.eyebrow,
.mini-title,
.section-head p,
.project-label {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--brand);
  background: rgba(21, 101, 255, 0.08);
  border: 1px solid rgba(21, 101, 255, 0.12);
}

.hero h1 {
  margin: 18px 0 12px;
  max-width: 12ch;
  font-size: clamp(2.6rem, 5vw, 4.7rem);
  line-height: 1.02;
}

.lead {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  box-shadow: 0 14px 26px rgba(21, 101, 255, 0.22);
}

.btn-ghost {
  color: var(--brand);
  background: rgba(21, 101, 255, 0.06);
  border: 1px solid rgba(21, 101, 255, 0.14);
}

.hero-tags,
.positioning-points,
.project-tags,
.pathway-line,
.platform-tags,
.stack-strip,
.hero-signal-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags {
  margin-top: 22px;
}

.hero-tags span,
.positioning-points span,
.project-tags span,
.pathway-line span,
.platform-tags span,
.stack-strip span {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  color: #284f90;
  background: #f7fbff;
  border: 1px solid rgba(83, 145, 247, 0.16);
}

.stack-strip {
  margin-top: 20px;
}

.stack-strip span {
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #edf5ff);
}

.hero-stage {
  display: grid;
  gap: 16px;
}

.hero-visual-card,
.hero-brand-card,
.hero-signal-grid article,
.value-card,
.detail-panel,
.project-card,
.platform-copy-card,
.platform-card,
.service-card,
.process-grid article,
.trust-note,
.license-card,
.cert-card,
.contact-card,
.positioning-panel,
.pathway,
.metric-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(244, 249, 255, 0.98));
  box-shadow: var(--shadow-sm);
}

.hero-visual-card {
  position: relative;
  margin: 0;
  min-height: 380px;
  overflow: hidden;
}

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

.hero-visual-card figcaption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(21, 101, 255, 0.14);
}

.hero-visual-card h3 {
  margin: 8px 0 0;
  font-size: 1.2rem;
}

.hero-side-grid {
  display: grid;
  gap: 16px;
}

.hero-brand-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
}

.hero-brand-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(21, 101, 255, 0.14);
}

.hero-brand-card h3 {
  margin: 8px 0 10px;
  font-size: 1.18rem;
}

.hero-brand-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.85;
}

.hero-signal-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-signal-grid article {
  padding: 16px;
}

.hero-signal-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-signal-grid strong {
  display: block;
  margin-top: 10px;
  font-size: 1.05rem;
  font-family: var(--font-head);
  color: var(--brand-deep);
}

.hero-signal-grid p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.9rem;
}

.section-head p,
.mini-title,
.project-label {
  color: var(--brand);
}

.section-head h2 {
  margin: 10px 0 0;
  font-size: clamp(1.7rem, 2.5vw, 2.4rem);
  line-height: 1.18;
}

.value-grid,
.project-grid,
.platform-grid,
.service-grid,
.contact-layout {
  margin-top: 22px;
}

.value-grid,
.platform-grid,
.service-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.value-card,
.project-card,
.platform-copy-card,
.platform-card,
.service-card,
.trust-note,
.contact-card {
  padding: 20px;
}

.value-card h3,
.project-card h3,
.platform-copy-card h3,
.platform-card h3,
.service-card h3,
.trust-note h3,
.contact-card h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
}

.value-card p,
.project-card p,
.platform-copy-card p,
.platform-card p,
.service-card p,
.trust-note p,
.contact-card p,
.detail-panel p,
.detail-panel li,
.metric-grid p,
.license-card figcaption {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.positioning-panel,
.pathway {
  margin-top: 18px;
  padding: 20px;
}

.positioning-panel {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.positioning-panel h3,
.pathway h3 {
  margin: 8px 0 0;
  font-size: 1.24rem;
}

.curriculum-shell,
.practice-shell {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
}

.curriculum-tabs,
.resource-tabs {
  display: grid;
  gap: 10px;
}

.curriculum-tabs button,
.resource-tabs button {
  border: 1px solid rgba(83, 145, 247, 0.16);
  border-radius: 16px;
  padding: 14px 16px;
  background: linear-gradient(180deg, #ffffff, #f1f7ff);
  color: var(--ink);
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.curriculum-tabs button:hover,
.curriculum-tabs button.active,
.resource-tabs button:hover,
.resource-tabs button.active {
  transform: translateX(4px);
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--brand-deep), var(--accent));
}

.detail-panel {
  padding: 22px;
}

.detail-panel h3 {
  margin: 0;
  font-size: 1.6rem;
}

.detail-tagline {
  margin-top: 10px;
  color: var(--brand);
  font-weight: 800;
}

.meta-grid {
  margin-top: 16px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.meta-grid span {
  display: block;
  padding: 12px 14px;
  border-radius: 16px;
  color: #2b4f8a;
  background: #f5f9ff;
  border: 1px solid rgba(83, 145, 247, 0.14);
  font-size: 0.92rem;
}

.detail-points {
  margin: 18px 0 0;
  padding-left: 18px;
}

.detail-points li {
  margin-bottom: 10px;
}

.panel-outcome {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 18px;
  color: var(--brand-deep);
  font-weight: 700;
  background: linear-gradient(135deg, rgba(21, 101, 255, 0.08), rgba(51, 194, 255, 0.08));
  border: 1px solid rgba(21, 101, 255, 0.12);
}

.pathway-line {
  margin-top: 16px;
}

.metric-grid {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-grid article {
  padding: 18px;
}

.metric-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.metric-grid strong {
  display: block;
  margin-top: 10px;
  font-size: 1.88rem;
  font-family: var(--font-head);
  color: var(--brand);
}

.metric-grid p {
  margin-top: 10px;
  font-size: 0.9rem;
}

.platform-intro {
  margin-top: 20px;
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: start;
}

.platform-gallery {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gallery-card {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.gallery-card img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}

.gallery-card figcaption {
  padding: 14px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.gallery-wide {
  grid-column: span 2;
}

.process-grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-grid article {
  padding: 18px;
}

.process-grid span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  color: #fff;
  font-weight: 800;
  box-shadow: 0 12px 22px rgba(21, 101, 255, 0.16);
}

.process-grid h3 {
  margin: 14px 0 8px;
  font-size: 1.05rem;
}

.process-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.trust-layout {
  margin-top: 20px;
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.license-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.license-card {
  margin: 0;
  padding: 14px;
}

.license-card img {
  width: 100%;
  aspect-ratio: 1 / 1.2;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid rgba(21, 101, 255, 0.12);
}

.license-card figcaption {
  margin-top: 10px;
  text-align: center;
}

.cert-grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cert-card {
  padding: 16px;
}

.cert-card h3 {
  margin: 0 0 12px;
  font-size: 1.06rem;
}

.cert-card div {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cert-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(21, 101, 255, 0.12);
}

.cta-section {
  background: linear-gradient(135deg, #f9fcff 0%, #eef7ff 62%, #f8fbff 100%);
}

.contact-layout {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cta-actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer {
  margin-bottom: 18px;
  text-align: center;
  color: #6a7fa4;
  font-size: 0.86rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1160px) {
  .hero,
  .platform-intro,
  .trust-layout,
  .curriculum-shell,
  .practice-shell {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 14ch;
  }

  .value-grid,
  .platform-grid,
  .service-grid,
  .metric-grid,
  .contact-layout,
  .license-grid,
  .hero-signal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .site-header,
  main,
  .site-footer {
    width: calc(100vw - 18px);
  }

  .site-header {
    top: 10px;
    margin-top: 10px;
    padding: 10px 12px;
  }

  .brand img {
    width: 48px;
    height: 48px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: min(260px, 80vw);
    padding: 10px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border-radius: 18px;
    border: 1px solid rgba(62, 128, 238, 0.16);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
  }

  .site-nav.open {
    display: flex;
  }

  .section {
    padding: 22px;
  }

  .hero h1 {
    max-width: none;
    font-size: 2.3rem;
  }

  .hero-brand-card {
    grid-template-columns: 1fr;
  }

  .value-grid,
  .project-grid,
  .platform-grid,
  .service-grid,
  .process-grid,
  .metric-grid,
  .contact-layout,
  .license-grid,
  .cert-grid,
  .platform-gallery,
  .hero-signal-grid,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .gallery-wide {
    grid-column: auto;
  }

  .curriculum-tabs button:hover,
  .curriculum-tabs button.active,
  .resource-tabs button:hover,
  .resource-tabs button.active {
    transform: none;
  }
}