:root {
  --ink: #12303a;
  --muted: #4f6d79;
  --cream: #fff9ef;
  --sand: #f9d38a;
  --sea: #4bb7c4;
  --sea-deep: #1b7f9d;
  --mint: #b8f1cf;
  --coral: #ff9f8a;
  --berry: #ff6c7c;
  --shadow: 0 24px 80px rgba(18, 48, 58, 0.18);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Outfit", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 36%),
    linear-gradient(180deg, #c9f3ff 0%, #8be0eb 34%, #7ed2de 60%, #5cb9ca 100%);
  overflow-x: hidden;
}

.sky-glow {
  position: fixed;
  inset: auto;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.35;
  pointer-events: none;
}

.sky-glow-left {
  top: -6rem;
  left: -4rem;
  background: rgba(255, 255, 255, 0.8);
}

.sky-glow-right {
  right: -5rem;
  bottom: 6rem;
  background: rgba(255, 200, 168, 0.55);
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 2rem 2rem 18rem;
  border-radius: 2rem;
  background:
    linear-gradient(180deg, rgba(255, 249, 239, 0.95), rgba(255, 248, 240, 0.9)),
    var(--cream);
  box-shadow: var(--shadow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(18, 48, 58, 0.08);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
}

.hero-card h1 {
  margin: 1rem 0 0.6rem;
  font-family: "ZCOOL XiaoWei", serif;
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  line-height: 1.05;
}

.lead {
  max-width: 44rem;
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--muted);
}

.floating-scene {
  position: absolute;
  inset: auto 0 0;
  height: 18rem;
}

.island {
  position: absolute;
  left: 50%;
  bottom: 2.1rem;
  width: 19rem;
  height: 8.5rem;
  transform: translateX(-50%);
  border-radius: 55% 55% 48% 48%;
  background:
    radial-gradient(circle at 50% 20%, #ffe8b6 0 20%, transparent 21%),
    linear-gradient(180deg, #ffe08f 0%, #f7be5e 70%, #e1a14b 100%);
  box-shadow: 0 18px 0 rgba(18, 48, 58, 0.08);
}

.island::before,
.island::after {
  content: "";
  position: absolute;
  border-radius: 999px;
}

.island::before {
  left: 2.2rem;
  bottom: 4.2rem;
  width: 2.8rem;
  height: 6rem;
  background: linear-gradient(180deg, #87654d 0%, #6d4a31 100%);
  box-shadow:
    4rem 0 0 0 #7f5b3d,
    8.2rem -0.6rem 0 0 #926641;
}

.island::after {
  left: 1rem;
  bottom: 7rem;
  width: 15rem;
  height: 4rem;
  background:
    radial-gradient(circle at 15% 70%, #7bd18d 0 24%, transparent 25%),
    radial-gradient(circle at 35% 40%, #5fbe77 0 28%, transparent 29%),
    radial-gradient(circle at 57% 60%, #87d89a 0 24%, transparent 25%),
    radial-gradient(circle at 78% 38%, #69c47f 0 25%, transparent 26%),
    radial-gradient(circle at 93% 64%, #8ce0a4 0 20%, transparent 21%);
}

.water-ring {
  position: absolute;
  left: 50%;
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid rgba(255, 255, 255, 0.4);
}

.water-ring-a {
  bottom: 0.8rem;
  width: 24rem;
  height: 7rem;
}

.water-ring-b {
  bottom: 0;
  width: 29rem;
  height: 9rem;
  border-color: rgba(255, 255, 255, 0.24);
}

.cloud,
.star {
  position: absolute;
}

.cloud {
  width: 6rem;
  height: 2.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
}

.cloud::before,
.cloud::after {
  content: "";
  position: absolute;
  background: inherit;
  border-radius: 50%;
}

.cloud::before {
  width: 2.7rem;
  height: 2.7rem;
  left: 0.8rem;
  bottom: 1rem;
}

.cloud::after {
  width: 2rem;
  height: 2rem;
  right: 0.8rem;
  bottom: 0.9rem;
}

.cloud-a {
  top: 2rem;
  left: 8%;
}

.cloud-b {
  top: 5rem;
  right: 10%;
  transform: scale(0.85);
}

.star {
  width: 0.7rem;
  height: 0.7rem;
  background: #fff6b5;
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
}

.star-a {
  top: 3rem;
  right: 26%;
}

.star-b {
  top: 6rem;
  left: 24%;
}

.star-c {
  top: 8rem;
  right: 14%;
  transform: scale(1.2);
}

.nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.4rem;
}

.nav-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 15rem;
  padding: 1.6rem;
  border-radius: 1.6rem;
  text-decoration: none;
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 90px rgba(18, 48, 58, 0.24);
}

.desk-card {
  background:
    radial-gradient(circle at 100% 0, rgba(184, 241, 207, 0.7), transparent 36%),
    linear-gradient(160deg, #eefcf2 0%, #d7fff0 100%);
}

.ai-card {
  background:
    radial-gradient(circle at 100% 0, rgba(255, 159, 138, 0.65), transparent 34%),
    linear-gradient(160deg, #fff5ec 0%, #ffe5dc 100%);
}

.nav-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: rgba(18, 48, 58, 0.7);
}

.nav-card h2 {
  margin: 0.9rem 0 0.4rem;
  font-family: "ZCOOL XiaoWei", serif;
  font-size: 2rem;
}

.nav-card p {
  margin: 0;
  max-width: 28rem;
  line-height: 1.75;
  color: var(--muted);
}

.nav-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 9rem;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: rgba(18, 48, 58, 0.92);
  color: white;
  font-weight: 600;
}

@media (max-width: 820px) {
  .hero-card {
    padding: 1.5rem 1.25rem 16rem;
  }

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

  .floating-scene {
    transform: scale(0.92);
    transform-origin: bottom center;
  }
}

@media (max-width: 560px) {
  .shell {
    padding: 1rem 0.85rem 2.5rem;
  }

  .hero-card {
    border-radius: 1.5rem;
    padding-bottom: 15rem;
  }

  .floating-scene {
    transform: scale(0.72);
  }

  .nav-card h2 {
    font-size: 1.7rem;
  }
}