:root {
  --radius: 1rem;
  --background: 0 0% 0%;
  --foreground: 0 0% 100%;
  --muted: 0 0% 80%;
  --dim: 0 0% 60%;
  --faint: 0 0% 50%;
  --font-display: "Poppins", "Microsoft YaHei", sans-serif;
  --font-serif: "Source Serif 4", Georgia, serif;
  --font-calligraphy: "叶根友行书", "叶根友毛笔行书2.0版", "YeGenYou", "STXingkai", "华文行楷", "KaiTi", serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  color: hsl(var(--foreground));
  font-family: var(--font-display);
  background: hsl(var(--background));
}

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

button {
  font: inherit;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.bg-video,
.bg-fallback,
.shade,
.cursor-spotlight {
  position: fixed;
  inset: 0;
}

.shade::before,
.shade::after {
  content: "";
  position: absolute;
  inset: -20%;
  pointer-events: none;
}

.shade::before {
  background:
    linear-gradient(115deg, transparent 0 38%, rgba(255,255,255,.18) 45%, transparent 52%),
    repeating-linear-gradient(90deg, transparent 0 56px, rgba(255,255,255,.045) 57px, transparent 58px);
  mix-blend-mode: screen;
  animation: techSweep 7s linear infinite;
}

.shade::after {
  background:
    radial-gradient(circle at 70% 28%, rgba(255,255,255,.16), transparent 18%),
    linear-gradient(180deg, transparent, rgba(0,0,0,.45));
  mix-blend-mode: screen;
}

@keyframes techSweep {
  from { transform: translateX(-28%) skewX(-8deg); }
  to { transform: translateX(28%) skewX(-8deg); }
}

.bg-video {
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(.72);
}

.bg-fallback {
  z-index: -1;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.20), transparent 28%),
    radial-gradient(circle at 78% 72%, rgba(255,255,255,.12), transparent 30%),
    linear-gradient(135deg, #050505, #1a1a1a 52%, #000);
}

.shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(0,0,0,.58), rgba(0,0,0,.14) 54%, rgba(0,0,0,.48)),
    radial-gradient(circle at 48% 45%, rgba(255,255,255,.06), transparent 38%);
  pointer-events: none;
}

.cursor-spotlight {
  --spotlight-x: -999px;
  --spotlight-y: -999px;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity .28s ease;
  background:
    radial-gradient(
      300px circle at var(--spotlight-x) var(--spotlight-y),
      rgba(255,255,255,.34) 0%,
      rgba(255,255,255,.25) 34%,
      rgba(255,255,255,.13) 52%,
      rgba(255,255,255,.05) 70%,
      transparent 100%
    );
  mix-blend-mode: screen;
  backdrop-filter: brightness(1.24) contrast(1.05) saturate(1.08);
  -webkit-mask-image:
    radial-gradient(
      300px circle at var(--spotlight-x) var(--spotlight-y),
      rgba(0,0,0,1) 0%,
      rgba(0,0,0,1) 38%,
      rgba(0,0,0,.78) 56%,
      rgba(0,0,0,.28) 78%,
      transparent 100%
    );
  mask-image:
    radial-gradient(
      300px circle at var(--spotlight-x) var(--spotlight-y),
      rgba(0,0,0,1) 0%,
      rgba(0,0,0,1) 38%,
      rgba(0,0,0,.78) 56%,
      rgba(0,0,0,.28) 78%,
      transparent 100%
    );
}

.cursor-spotlight.is-active {
  opacity: 1;
}

.page {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 100vh;
}

.left-panel,
.right-panel {
  position: relative;
  min-height: 100vh;
  padding: 1.5rem;
}

.left-panel {
  width: 52%;
  display: flex;
  flex-direction: column;
}

.right-panel {
  width: 48%;
  display: flex;
  flex-direction: column;
}

.liquid-glass,
.liquid-glass-strong {
  position: relative;
  overflow: hidden;
  border: none;
  isolation: isolate;
  background: rgba(255, 255, 255, 0.01);
  background-blend-mode: luminosity;
}

.liquid-glass {
  backdrop-filter: blur(4px);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.1);
}

.liquid-glass-strong {
  backdrop-filter: blur(50px);
  box-shadow: 4px 4px 4px rgba(0,0,0,0.05), inset 0 1px 1px rgba(255,255,255,0.15);
}

.liquid-glass::before,
.liquid-glass-strong::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  padding: 1.4px;
  border-radius: inherit;
  pointer-events: none;
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.liquid-glass::before {
  background: linear-gradient(180deg, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0.15) 20%, transparent 40%, transparent 60%, rgba(255,255,255,0.15) 80%, rgba(255,255,255,0.45) 100%);
}

.liquid-glass-strong::before {
  background: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0.2) 20%, transparent 40%, transparent 60%, rgba(255,255,255,0.2) 80%, rgba(255,255,255,0.5) 100%);
}

.left-glass {
  position: absolute;
  inset: 1.5rem;
  z-index: -1;
  border-radius: 1.5rem;
}

.nav,
.right-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.06em;
}

.brand img,
.hero-logo {
  filter: drop-shadow(0 12px 28px rgba(0,0,0,.32));
}

.nav-pill,
.account,
.social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  min-height: 44px;
  padding: 0 .95rem;
  border-radius: 999px;
  color: rgba(255,255,255,.82);
  background-color: transparent;
  cursor: pointer;
  transition: transform .22s ease, color .22s ease;
}

.nav-pill:hover,
.account:hover,
.social a:hover,
.cta:hover,
.plus:hover {
  transform: scale(1.05);
}

.nav-pill:active,
.account:active,
.cta:active,
.plus:active {
  transform: scale(.95);
}

.hero-copy {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 7vh 2rem 3rem;
}

.hero-logo {
  width: 80px;
  height: 80px;
  margin-bottom: 1.6rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: rgba(255,255,255,.5);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
}

h1 {
  max-width: 850px;
  margin: 0;
  color: #fff;
  font-size: clamp(3.8rem, 6vw, 6rem);
  line-height: .9;
  font-weight: 500;
  letter-spacing: -0.06em;
}

.hero-slogan {
  font-family: var(--font-calligraphy);
  font-weight: 500;
  letter-spacing: .02em;
  text-shadow:
    0 0 24px rgba(255,255,255,.18),
    0 12px 42px rgba(0,0,0,.38);
}

.hero-slogan em {
  position: relative;
  font-family: var(--font-calligraphy);
  color: rgba(255,255,255,.9);
}

.hero-slogan em::after {
  content: "";
  position: absolute;
  left: 2%;
  right: 0;
  bottom: .08em;
  height: .08em;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.7), transparent);
  filter: blur(.5px);
}

h1 em,
h2 em,
h3 em {
  font-family: var(--font-serif);
  color: rgba(255,255,255,.8);
  font-style: italic;
}

.lead {
  max-width: 690px;
  margin: 1.45rem auto 0;
  color: rgba(255,255,255,.72);
  line-height: 1.8;
  font-size: 1rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .85rem;
  margin-top: 2rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 56px;
  padding: .55rem .72rem .55rem 1.35rem;
  border-radius: 999px;
  color: #fff;
  transition: transform .22s ease;
}

.primary-cta {
  min-width: 13.5rem;
}

.secondary-cta {
  min-width: 12rem;
  color: rgba(255,255,255,.82);
}

.icon-circle {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(255,255,255,.1);
}

.cta .icon-circle {
  width: 1.75rem;
  height: 1.75rem;
  background: rgba(255,255,255,.15);
}

.launch-strip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  margin-top: 1.05rem;
  padding: .58rem .9rem;
  border-radius: 999px;
  color: rgba(255,255,255,.7);
  font-size: .72rem;
  letter-spacing: .04em;
}

.launch-strip i {
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
}

.deploy-note {
  max-width: 620px;
  margin: .78rem auto 0;
  color: rgba(255,255,255,.52);
  font-size: .78rem;
  line-height: 1.7;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .65rem;
  margin-top: 1.35rem;
}

.pills span {
  padding: .56rem .86rem;
  border-radius: 999px;
  color: rgba(255,255,255,.8);
  font-size: .74rem;
}

.quote {
  padding: 0 2rem 2rem;
  text-align: center;
}

.quote .label {
  margin: 0 0 .8rem;
  color: rgba(255,255,255,.5);
  font-size: .72rem;
  letter-spacing: .2em;
}

blockquote {
  max-width: 680px;
  margin: 0 auto;
  color: rgba(255,255,255,.82);
  font-size: clamp(1.25rem, 2vw, 1.85rem);
  line-height: 1.35;
  font-weight: 500;
}

.author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  margin-top: 1.1rem;
  color: rgba(255,255,255,.58);
  font-size: .72rem;
  letter-spacing: .18em;
}

.author span {
  width: 3.4rem;
  height: 1px;
  background: rgba(255,255,255,.28);
}

.social {
  gap: .25rem;
  padding: .35rem;
}

.social a,
.arrow {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.9);
  transition: transform .22s ease, color .22s ease;
}

.social a:hover {
  color: rgba(255,255,255,.78);
}

.community {
  width: 14rem;
  margin-top: 15vh;
  margin-left: auto;
  padding: 1rem;
  border-radius: 1.35rem;
}

.community h2,
.feature h3,
.bottom-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.community p,
.feature p,
.bottom-card p {
  margin: .5rem 0 0;
  color: rgba(255,255,255,.62);
  font-size: .8rem;
  line-height: 1.65;
}

.mini-link {
  display: inline-flex;
  margin-top: .85rem;
  padding: .42rem .68rem;
  border-radius: 999px;
  color: rgba(255,255,255,.9);
  font-size: .72rem;
  background: rgba(255,255,255,.1);
  transition: transform .22s ease, background .22s ease;
}

.mini-link:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,.16);
}

.feature-wrap {
  margin-top: auto;
  padding: 1rem;
  border-radius: 2.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .9rem;
}

.feature {
  min-height: 11rem;
  padding: 1rem;
  border-radius: 1.5rem;
}

.feature .icon-circle {
  margin-bottom: 1rem;
}

.bottom-card {
  display: grid;
  grid-template-columns: 96px 1fr 42px;
  gap: 1rem;
  align-items: center;
  margin-top: .9rem;
  padding: .85rem;
  border-radius: 1.5rem;
}

.mini-screen {
  width: 96px;
  height: 64px;
  display: grid;
  gap: 5px;
  padding: .55rem;
  border-radius: 1rem;
  background:
    linear-gradient(135deg, rgba(255,255,255,.28), transparent),
    rgba(255,255,255,.08);
}

.mini-screen span {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.52);
}

.mini-screen span:nth-child(2) {
  width: 68%;
  background: rgba(255,255,255,.35);
}

.mini-screen span:nth-child(3) {
  width: 86%;
  background: rgba(255,255,255,.25);
}

.plus {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  color: #fff;
  background: rgba(255,255,255,.1);
  cursor: pointer;
  transition: transform .22s ease;
}

.commercial-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(0,0,0,.58);
  backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}

.commercial-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.commercial-card {
  width: min(100%, 620px);
  padding: 1.45rem;
  border-radius: 1.5rem;
  color: #fff;
  transform: translateY(14px) scale(.98);
  transition: transform .22s ease;
}

.commercial-modal.is-open .commercial-card {
  transform: translateY(0) scale(1);
}

.commercial-card h2 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.35rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.commercial-card p:not(.eyebrow) {
  margin: 1rem 0 0;
  color: rgba(255,255,255,.72);
  line-height: 1.8;
}

.modal-close {
  position: absolute;
  top: .9rem;
  right: .9rem;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 999px;
  color: #fff;
  background: rgba(255,255,255,.1);
  cursor: pointer;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .65rem;
  margin-top: 1.1rem;
}

.contact-grid span {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: .55rem .7rem;
  border-radius: 999px;
  color: rgba(255,255,255,.78);
  background: rgba(255,255,255,.08);
  font-size: .82rem;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 1.25rem;
}

@media (max-width: 1024px) {
  .page {
    display: block;
  }

  .left-panel {
    width: 100%;
    min-height: 100vh;
    padding: 1rem;
  }

  .left-glass {
    inset: 1rem;
    border-radius: 1.35rem;
  }

  .right-panel {
    display: none;
  }

  .hero-copy {
    padding-inline: 1.25rem;
  }

  .cta-row {
    width: 100%;
  }

  .cta {
    min-width: min(100%, 18rem);
  }

  h1 {
    font-size: clamp(3.05rem, 14vw, 5.1rem);
  }
}

@media (max-width: 560px) {
  .brand span {
    font-size: 1.2rem;
  }

  .nav-pill span {
    display: none;
  }

  .quote {
    padding-inline: 1.1rem;
  }

  .launch-strip {
    width: 100%;
    max-width: 21rem;
    gap: .42rem;
    padding-inline: .65rem;
    font-size: .66rem;
  }

  .launch-strip i {
    width: 12px;
  }

  .deploy-note {
    font-size: .72rem;
  }

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

  .modal-actions .cta {
    width: 100%;
  }

  .author span {
    width: 1.7rem;
  }
}