:root {
  color-scheme: dark;
  font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
  background: #070b12;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-width: thin;
  scrollbar-color: rgba(151, 151, 158, 0.62) transparent;
}

html::-webkit-scrollbar {
  width: 12px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  min-height: 72px;
  border: 3px solid transparent;
  border-radius: 999px;
  background: rgba(151, 151, 158, 0.62);
  background-clip: padding-box;
}

html::-webkit-scrollbar-thumb:hover {
  background-color: rgba(184, 184, 190, 0.78);
}

html::-webkit-scrollbar-button {
  display: none;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: #f4f8ff;
  background:
    radial-gradient(circle at 50% 0, rgba(47, 185, 235, 0.18), transparent 34%),
    linear-gradient(180deg, #07101b, #05070b 70%);
}

main {
  width: min(1600px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 56px;
}

.showcase-copy {
  margin: 0 0 28px;
}

.showcase-copy p {
  margin: 0 0 10px;
  color: #50d7ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.showcase-copy h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 58px);
}

.showcase-copy span,
.app-frame figcaption {
  color: rgba(219, 229, 241, 0.68);
}

.demo-notice {
  display: flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  margin-top: 20px;
  padding: 11px 15px;
  border: 1px solid rgba(255, 190, 74, 0.35);
  border-radius: 8px;
  color: #ffe4ad;
  background: rgba(255, 174, 45, 0.08);
}

.demo-notice strong {
  flex: 0 0 auto;
  color: #ffc45e;
  font-size: 13px;
}

.demo-notice span {
  color: #ffe4ad;
  font-size: 14px;
}

.industry-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: 36px;
  margin: 0 0 28px;
  padding: 28px;
  border: 1px solid rgba(101, 209, 245, 0.2);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(28, 107, 142, 0.18), rgba(255, 255, 255, 0.025));
}

.industry-copy > p:first-child {
  margin: 0 0 9px;
  color: #50d7ff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.industry-copy h2 {
  margin: 0 0 14px;
  font-size: clamp(22px, 2.5vw, 34px);
}

.industry-copy > p:last-child {
  max-width: 760px;
  margin: 0;
  color: rgba(224, 234, 245, 0.76);
  font-size: 15px;
  line-height: 1.9;
}

.industry-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.industry-points li {
  padding: 16px;
  border: 1px solid rgba(113, 218, 250, 0.14);
  border-radius: 10px;
  background: rgba(3, 12, 21, 0.48);
}

.industry-points strong,
.industry-points span {
  display: block;
}

.industry-points strong {
  margin-bottom: 7px;
  color: #8ce8ff;
  font-size: 14px;
}

.industry-points span {
  color: rgba(219, 229, 241, 0.66);
  font-size: 13px;
  line-height: 1.65;
}

.app-frame {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(101, 209, 245, 0.28);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.44);
}

.app-preview-scroll {
  overflow-x: auto;
  overscroll-behavior-x: contain;
}

.app-preview-scroll img {
  display: block;
  width: 100%;
  height: auto;
}

.mobile-hint {
  display: none;
}

.app-frame figcaption {
  padding: 16px 20px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

@media (max-width: 960px) {
  .industry-intro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  main {
    width: min(100% - 24px, 1600px);
    padding-top: 58px;
  }

  .demo-notice {
    align-items: flex-start;
  }

  .industry-intro {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 20px;
  }

  .industry-points {
    grid-template-columns: 1fr;
  }

  .app-preview-scroll img {
    width: 920px;
    max-width: none;
  }

  .mobile-hint {
    display: block;
    margin: 0;
    padding: 10px 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #70e6ff;
    background: rgba(48, 213, 255, 0.06);
    font-size: 12px;
    text-align: center;
  }
}