:root {
  --bg0: #050b1c;
  --bg1: #0a1740;
  --ink: #f4f7ff;
  --muted: #a8b4d4;
  --cyan: #3ecbff;
  --magenta: #ff4fd8;
  --blue: #2f7bff;
  --green: #1ecf7a;
  --line: rgba(255, 255, 255, 0.12);
  --glass: rgba(12, 24, 56, 0.55);
  --font-display: "Sora", "Noto Sans SC", "Noto Sans TC", system-ui, sans-serif;
  --font-body: "Manrope", "Noto Sans SC", "Noto Sans TC", system-ui, sans-serif;
}

*,
*::before,
*::after {
  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(ellipse 90% 70% at 70% 10%, rgba(255, 79, 216, 0.18), transparent 55%),
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(62, 203, 255, 0.22), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 55%, #071233);
  overflow-x: hidden;
}

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

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

.wrap {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* —— Top bar —— */
.top {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0 0.4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.lang {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
}

.lang button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 0.78rem/1 var(--font-body);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
}

.lang button[aria-pressed="true"] {
  color: var(--ink);
  background: linear-gradient(120deg, rgba(62, 203, 255, 0.28), rgba(255, 79, 216, 0.22));
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: center;
  padding: 1.5rem 0 3rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 8% -8% auto auto;
  width: min(62vw, 720px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 40% 40%, rgba(62, 203, 255, 0.25), transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(255, 79, 216, 0.2), transparent 50%);
  filter: blur(8px);
  pointer-events: none;
  animation: drift 14s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-3%, 4%, 0) scale(1.06); }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.2vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero h1 span {
  background: linear-gradient(110deg, #fff 20%, var(--cyan) 55%, var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.65;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  color: #041022;
  background: linear-gradient(120deg, var(--cyan), #8ad7ff 40%, #ff9ae8);
  box-shadow: 0 10px 30px rgba(62, 203, 255, 0.25);
}

.btn-ghost {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-visual {
  position: relative;
  justify-self: end;
  width: min(100%, 460px);
}

.hero-visual .orb {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 203, 255, 0.35), transparent 65%);
  filter: blur(18px);
  animation: pulse 4.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.55; transform: scale(0.96); }
  50% { opacity: 1; transform: scale(1.05); }
}

.hero-visual img.logo {
  position: relative;
  width: 100%;
  filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.45));
  animation: floaty 6s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* —— Platforms —— */
.section {
  padding: 1rem 0 4.5rem;
}

.section-head {
  margin-bottom: 1.4rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0.55rem 0 0;
  color: var(--muted);
  max-width: 40rem;
  line-height: 1.6;
}

.platforms {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
}

.platform {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.15rem 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(12px);
  min-height: 100%;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.platform:hover {
  border-color: rgba(62, 203, 255, 0.45);
  transform: translateY(-3px);
}

.platform-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: 0.8rem;
  background: rgba(62, 203, 255, 0.12);
  color: var(--cyan);
}

.platform h3 {
  margin: 0;
  font-size: 1.05rem;
  font-family: var(--font-display);
}

.platform .desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  flex: 1;
}

.platform .actions {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.platform .actions a,
.platform .actions span.soon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  border-radius: 0.75rem;
  font-size: 0.86rem;
  font-weight: 700;
}

.platform .actions a.store {
  background: linear-gradient(120deg, rgba(62, 203, 255, 0.9), rgba(47, 123, 255, 0.95));
  color: #041022;
}

.platform .actions a.direct {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.platform .actions span.soon {
  border: 1px dashed rgba(255, 255, 255, 0.18);
  color: var(--muted);
  font-weight: 600;
}

/* —— Features strip —— */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2.2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.feature h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-family: var(--font-display);
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* —— Footer —— */
.footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
  align-items: center;
}

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

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-visual {
    justify-self: center;
    width: min(72%, 320px);
    order: -1;
  }

  .platforms {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 560px) {
  .platforms {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}