:root {
  --bg-top: #edf6ff;
  --bg-bottom: #dfeefa;
  --panel: rgba(248, 252, 255, 0.76);
  --panel-strong: rgba(252, 254, 255, 0.96);
  --text: #182330;
  --muted: #516273;
  --line: rgba(70, 106, 141, 0.14);
  --accent: #3f7fb2;
  --accent-deep: #265b84;
  --accent-soft: rgba(63, 127, 178, 0.12);
  --shadow: 0 30px 80px rgba(54, 93, 135, 0.14);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "IBM Plex Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(114, 176, 226, 0.24), transparent 24%),
    radial-gradient(circle at 88% 20%, rgba(136, 198, 229, 0.2), transparent 22%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

a {
  color: inherit;
}

.page-shell {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 40px 24px 24px;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(12px);
  opacity: 0.75;
  pointer-events: none;
}

.ambient-left {
  top: 88px;
  left: -48px;
  width: 220px;
  height: 220px;
  background: rgba(119, 183, 231, 0.22);
}

.ambient-right {
  right: -60px;
  bottom: 120px;
  width: 260px;
  height: 260px;
  background: rgba(97, 160, 212, 0.16);
}

.main {
  position: relative;
  z-index: 1;
  flex: 1;
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
}

.hero {
  padding: 48px 44px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--panel);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  margin: 0 0 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: clamp(42px, 6.6vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.lead {
  max-width: 580px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-meta span {
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  font-size: 14px;
}

.footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  width: 100%;
  margin: auto auto 0;
  padding: 28px 6px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer a {
  text-decoration: none;
  border-bottom: 1px solid rgba(81, 98, 115, 0.3);
}

.footer a:hover {
  color: var(--accent-deep);
  border-color: rgba(38, 91, 132, 0.4);
}

@media (max-width: 860px) {
  .page-shell {
    padding-top: 24px;
  }

  .hero {
    padding: 30px 24px;
    border-radius: 24px;
  }

  .footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .page-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .lead {
    font-size: 16px;
  }
}