@font-face {
  font-family: "AlibabaPuHuiTi";
  src: url("./fonts/AlibabaPuHuiTi-3-55-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: "AlibabaPuHuiTi";
  src: url("./fonts/AlibabaPuHuiTi-3-75-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
}

@font-face {
  font-family: "SourceHanSansSC";
  src: url("./fonts/SourceHanSansSC-Normal.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
}

:root {
  --bg: #071011;
  --bg-soft: #0d1718;
  --surface: rgba(12, 19, 20, 0.74);
  --surface-strong: rgba(14, 22, 23, 0.92);
  --surface-soft: rgba(255, 255, 255, 0.03);
  --line-soft: rgba(255, 255, 255, 0.08);
  --cyan: #00ffc2;
  --cyan-soft: #8dffe0;
  --gold: #e9c349;
  --gold-soft: #f1d794;
  --text: #f3fbf8;
  --muted: #a1b7b0;
  --shadow: 0 20px 48px rgba(0, 0, 0, 0.34);
  --shell-width: min(1240px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--text);
  font-family: "AlibabaPuHuiTi", "SourceHanSansSC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 255, 194, 0.12), transparent 24%),
    radial-gradient(circle at 85% 14%, rgba(233, 195, 73, 0.08), transparent 20%),
    linear-gradient(180deg, #0b1112 0%, #060909 48%, #050606 100%);
}

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

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

.site-shell {
  position: relative;
  width: var(--shell-width);
  margin: 0 auto;
  padding: 24px 0 42px;
}

.ambient {
  position: fixed;
  inset: auto;
  border-radius: 999px;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.6;
}

.ambient--cyan {
  top: 40px;
  left: -80px;
  width: 320px;
  height: 320px;
  background: rgba(0, 255, 194, 0.12);
}

.ambient--gold {
  top: 80px;
  right: -70px;
  width: 260px;
  height: 260px;
  background: rgba(233, 195, 73, 0.08);
}

.topbar,
.hero,
.stats,
.section,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
  box-shadow: 0 0 18px rgba(0, 255, 194, 0.22);
}

.brand__text {
  display: grid;
  gap: 2px;
}

.brand__text strong {
  font-size: 20px;
  letter-spacing: 0.08em;
}

.brand__text small,
.eyebrow,
.stats span {
  color: var(--muted);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.topbar__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.topbar__nav a {
  color: #dce9e5;
  transition: color 0.18s ease;
}

.topbar__nav a:hover {
  color: var(--cyan-soft);
}

.topbar__link--accent {
  color: var(--gold-soft) !important;
}

.page-main {
  display: grid;
  gap: 26px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 28px;
  align-items: center;
  padding: 44px 0 8px;
}

.hero__copy h1,
.section__head h2,
.copy-panel h2 {
  margin: 0;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.06;
}

.hero__copy h1 {
  max-width: none;
  font-size: clamp(34px, 4.6vw, 64px);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.hero__copy p,
.section__head p,
.play-card p,
.flow__item p,
.copy-panel p,
.visual-item figcaption span {
  margin: 0;
  color: #bfd0cb;
  line-height: 1.78;
}

.hero__copy p {
  max-width: 700px;
  margin-top: 18px;
  font-size: 17px;
}

.eyebrow {
  margin-bottom: 14px;
  color: rgba(0, 255, 194, 0.72);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
}

.button--primary {
  background: linear-gradient(135deg, var(--cyan), #7effdc);
  color: #032019;
  font-weight: 600;
}

.button--primary:hover {
  background: linear-gradient(135deg, #16ffd0, #98ffe8);
}

.hero__visual {
  margin: 0;
  min-height: 460px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
}

.stats > div {
  padding: 22px 22px 20px;
  background: rgba(10, 16, 17, 0.78);
}

.stats strong {
  display: block;
  margin-top: 10px;
  font-size: 34px;
  letter-spacing: 0.06em;
}

.section {
  padding: 22px 0;
}

.section__head {
  display: grid;
  gap: 10px;
  max-width: 760px;
  margin-bottom: 22px;
}

.section__head h2,
.copy-panel h2 {
  font-size: clamp(28px, 4vw, 48px);
}

.play-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.play-card,
.flow__item,
.copy-panel,
.snapshot-panel,
.visual-item {
  background: var(--surface);
  box-shadow: var(--shadow);
}

.play-card {
  padding: 24px;
}

.play-card__index,
.flow__item span {
  display: inline-block;
  color: var(--gold);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 14px;
  letter-spacing: 0.22em;
}

.play-card h3,
.flow__item strong,
.visual-item figcaption strong,
.snapshot-panel__row strong {
  display: block;
  margin-top: 16px;
  font-size: 22px;
  color: #fbfffe;
  letter-spacing: 0.04em;
}

.play-card p {
  margin-top: 12px;
}

.section--flow {
  padding-top: 10px;
}

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

.flow__item {
  padding: 22px;
}

.flow__item p {
  margin-top: 12px;
}

.section--split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
}

.copy-panel,
.snapshot-panel {
  padding: 28px;
}

.copy-panel p {
  margin-top: 16px;
  max-width: 640px;
}

.snapshot-panel {
  display: grid;
  gap: 18px;
}

.snapshot-panel__row {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.snapshot-panel__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.snapshot-panel__row span {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.snapshot-panel__row strong {
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.6;
}

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

.visual-item {
  margin: 0;
  overflow: hidden;
}

.visual-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.visual-item figcaption {
  display: grid;
  gap: 8px;
  padding: 18px;
}

.footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px 28px;
  padding-top: 18px;
  margin-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.footer__main,
.footer__meta {
  display: grid;
  gap: 8px;
}

.footer__meta {
  justify-items: end;
}

.footer__brand {
  font-size: 18px;
  letter-spacing: 0.08em;
}

.footer__text {
  color: var(--muted);
  line-height: 1.7;
}

.footer__records {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.18s ease;
}

.footer__link:hover {
  color: var(--cyan-soft);
}

.footer__beian img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex: 0 0 auto;
}

@media (max-width: 1100px) {
  .hero,
  .section--split,
  .play-grid,
  .flow,
  .visual-grid,
  .stats {
    grid-template-columns: 1fr;
  }

  .hero__copy h1 {
    white-space: normal;
  }
}

@media (max-width: 820px) {
  :root {
    --shell-width: min(calc(100vw - 20px), 100%);
  }

  .site-shell {
    padding-top: 16px;
  }

  .topbar,
  .footer {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }

  .footer__meta,
  .footer__records {
    justify-items: start;
    justify-content: flex-start;
  }

  .hero {
    padding-top: 20px;
  }

  .hero__copy h1 {
    font-size: 36px;
  }

  .play-card,
  .flow__item,
  .copy-panel,
  .snapshot-panel {
    padding: 20px;
  }
}