:root {
  --paper: #f6f5f2;
  --ink: #1f1e1c;
  --muted: #7a776f;
  --orange: #ff6b14;
  --glass: rgba(255, 255, 255, .58);
  --line: rgba(31, 30, 28, .08);
  --sans: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
  background:
    radial-gradient(920px 560px at 50% 0%, rgba(255, 107, 20, .07), transparent 58%),
    radial-gradient(640px 380px at 88% 12%, rgba(255, 176, 120, .1), transparent 52%),
    var(--paper);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 20; background: #fff; padding: 8px 12px; }
.skip-link:focus { top: 12px; }

header {
  position: fixed; inset: 0 0 auto; z-index: 10;
  height: 72px; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo img {
  height: 42px;
  width: 64px;
  object-fit: contain;
  object-position: center bottom;
}
.header-text { color: var(--muted); font-size: 14px; font-weight: 600; }
.header-text:hover { color: var(--orange); }

.hero {
  min-height: 100dvh;
  padding: 108px 24px 64px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}
.mascot {
  width: min(360px, 68vw);
  margin: 0 0 28px;
  filter: drop-shadow(0 24px 40px rgba(40, 32, 24, .1));
}
.kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .04em;
}
.hero h1 {
  margin: 0;
  font-size: clamp(44px, 8vw, 80px);
  font-weight: 650;
  letter-spacing: .12em;
  line-height: 1.08;
}
.cta-grid {
  width: min(720px, 100%);
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cta-grid a {
  padding: 26px 24px 24px;
  text-align: left;
  border-radius: 22px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, .75);
  box-shadow: 0 10px 40px rgba(40, 32, 24, .05);
  backdrop-filter: blur(18px);
  transition: transform .2s ease, box-shadow .2s ease;
}
.cta-grid a:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 44px rgba(255, 107, 20, .12);
}
.cta-grid b {
  display: block;
  color: var(--orange);
  font-size: 22px;
  font-weight: 700;
}
.cta-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.about {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 24px 96px;
  color: var(--muted);
  font-size: 16px;
}
.about p:first-child { margin-top: 0; }

footer {
  padding: 28px 28px 32px;
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
}
.foot-brand { color: var(--ink); font-weight: 700; letter-spacing: .12em; }
.foot-links { display: flex; flex-wrap: wrap; gap: 18px; }
.foot-links a:hover { color: var(--orange); }
footer small { color: #a3a099; }

@media (max-width: 680px) {
  .cta-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 96px; }
  .mascot { width: min(280px, 78vw); }
  .hero h1 { letter-spacing: .08em; }
}
@media (max-height: 820px) {
  .mascot { width: min(240px, 52vw); margin-bottom: 16px; }
  .hero { padding: 88px 20px 36px; }
  .cta-grid { margin-top: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cta-grid a { transition: none; }
}