:root {
  --bg: #fff9fc;
  --bg-soft: #f4f7ff;
  --card: #ffffff;
  --ink: #1d2440;
  --sub: #5f6886;
  --line: #dce4ff;
  --pink: #ff5fa6;
  --blue: #4a73ff;
  --mint: #5fd7c5;
  --shadow: 0 20px 50px rgba(51, 61, 110, 0.18);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  scroll-behavior: smooth;
}

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

.bg-blobs {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 8% 12%, rgba(255, 95, 166, 0.16) 0 12%, transparent 36%),
    radial-gradient(circle at 85% 18%, rgba(74, 115, 255, 0.18) 0 14%, transparent 38%),
    radial-gradient(circle at 70% 80%, rgba(95, 215, 197, 0.14) 0 12%, transparent 38%),
    linear-gradient(180deg, #fffafe 0%, #f7faff 46%, #fffafe 100%);
}

.bg-blobs::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(124, 139, 196, 0.18) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: 0.4;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid rgba(220, 228, 255, 0.8);
}

.nav-wrap {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "ZCOOL KuaiLe", cursive;
  font-size: 28px;
  letter-spacing: 0.5px;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(74, 115, 255, 0.2);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.main-nav a {
  font-weight: 700;
  color: #3d486f;
  padding: 8px 12px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.main-nav a:hover {
  color: var(--blue);
  background: rgba(74, 115, 255, 0.1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font-size: 20px;
}

.section {
  padding: 72px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: #6b74a2;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0.3px;
}

.hero-copy h1 span {
  color: var(--blue);
  text-shadow: 0 8px 24px rgba(74, 115, 255, 0.22);
}

.hero-desc {
  margin: 18px 0 0;
  color: var(--sub);
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 136px;
  height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform 0.16s ease, filter 0.16s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
}

.btn-primary {
  background: linear-gradient(120deg, var(--pink), #ff8a7a 46%, #ffbe66 100%);
  color: #fff;
  box-shadow: 0 16px 28px rgba(255, 110, 143, 0.32);
}

.btn-ghost {
  border-color: #b7c7ff;
  color: var(--blue);
  background: #f5f8ff;
}

.hero-stats {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stat-chip {
  background: #ffffffd9;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
}

.stat-chip strong {
  display: block;
  font-size: 14px;
  color: #28366b;
}

.stat-chip span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: #67739e;
}

.hero-art {
  position: relative;
}

.art-card {
  position: relative;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(250, 252, 255, 0.98)),
    var(--card);
  border: 1px solid #d6e0ff;
  border-radius: 26px;
  padding: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.art-card::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -72px;
  top: -70px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95, 215, 197, 0.3), transparent 70%);
}

.badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
  background: linear-gradient(120deg, var(--blue), #7f8cff);
  border-radius: 999px;
  padding: 6px 10px;
}

.hero-logo {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(74, 115, 255, 0.28);
}

.art-lines {
  margin-top: 18px;
  display: grid;
  gap: 8px;
}

.art-lines p {
  margin: 0;
  background: #f2f6ff;
  border-radius: 10px;
  padding: 8px 10px;
  color: #3d4c79;
  font-weight: 700;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 38px);
}

.feature-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  background: #fff;
  border: 1px solid #dbe4ff;
  border-radius: var(--radius);
  padding: 18px;
  min-height: 180px;
  box-shadow: 0 8px 22px rgba(38, 52, 98, 0.08);
}

.feature-card h3 {
  margin: 0;
  font-size: 20px;
  color: #22316a;
}

.feature-card p {
  margin: 10px 0 0;
  color: var(--sub);
  line-height: 1.72;
}

.module-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.module-card {
  border: 1px solid #d9e3ff;
  border-radius: var(--radius);
  padding: 18px;
  background: linear-gradient(160deg, #ffffff, #f4f8ff);
}

.module-card h3 {
  margin: 0;
  color: #23336e;
}

.module-card ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--sub);
  line-height: 1.9;
}

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

.update-card {
  border: 1px solid #d9e3ff;
  border-radius: var(--radius);
  padding: 18px;
  background: linear-gradient(160deg, #ffffff, #f8fbff);
  box-shadow: 0 8px 22px rgba(38, 52, 98, 0.08);
}

.update-card h3 {
  margin: 0;
  color: #26356f;
}

.update-card p {
  margin: 10px 0 0;
  color: var(--sub);
  line-height: 1.72;
}

.scene-list {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.scene-item {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid #dbe4ff;
  border-radius: 16px;
  background: #fff;
}

.scene-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  color: #fff;
  font-family: "ZCOOL KuaiLe", cursive;
  font-size: 24px;
  background: linear-gradient(140deg, var(--blue), var(--pink));
}

.scene-item h3 {
  margin: 2px 0 0;
  color: #26376f;
}

.scene-item p {
  margin: 8px 0 0;
  color: var(--sub);
  line-height: 1.8;
}

.cta-wrap {
  border: 1px solid #d8e2ff;
  background:
    radial-gradient(circle at 16% 12%, rgba(95, 215, 197, 0.25), transparent 36%),
    radial-gradient(circle at 90% 82%, rgba(255, 95, 166, 0.24), transparent 36%),
    #fff;
  border-radius: 26px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.qr-cta {
  grid-template-columns: 1fr auto;
}

.cta-wrap h2 {
  margin: 0;
}

.cta-wrap p {
  margin: 10px 0 0;
  color: var(--sub);
}

.cta-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.qr-card {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid #dbe3ff;
  background: #ffffffd9;
}

.mini-qrcode {
  width: 170px;
  height: 170px;
  border-radius: 12px;
  border: 1px solid #d8e1ff;
  background: #fff;
}

.qr-card p {
  margin: 0;
  font-size: 13px;
  color: #58628a;
}

.site-footer {
  border-top: 1px solid #dae4ff;
  background: rgba(255, 255, 255, 0.82);
}

.footer-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: #68739c;
  font-size: 13px;
}

.footer-wrap a {
  color: inherit;
  text-decoration: none;
}

.footer-wrap a:hover {
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-grid,
  .module-grid,
  .update-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-wrap {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .nav-wrap {
    height: 64px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: min(600px, calc(100% - 20px));
    border: 1px solid #dce5ff;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 16px;
    padding: 10px;
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

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

  .hero,
  .section {
    padding: 56px 0;
  }

  .hero-grid,
  .feature-grid,
  .module-grid,
  .update-grid {
    grid-template-columns: 1fr;
  }

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

  .scene-item {
    grid-template-columns: 1fr;
  }

  .footer-wrap {
    min-height: 92px;
    flex-direction: column;
    justify-content: center;
  }
}