:root {
  color-scheme: light;
  --ink: #17132f;
  --muted: #625e78;
  --violet: #6950e8;
  --violet-dark: #29204f;
  --line: rgba(58, 45, 112, 0.12);
  --surface: rgba(255, 255, 255, 0.9);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #f7f5ff;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 5%, rgba(101, 215, 237, 0.2), transparent 30rem),
    radial-gradient(circle at 88% 24%, rgba(119, 89, 231, 0.19), transparent 28rem),
    linear-gradient(180deg, #fbfaff 0%, #f4f1ff 100%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 40px;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 7vw, 76px);
  color: #fff;
  border-radius: 32px;
  background:
    linear-gradient(135deg, rgba(33, 28, 74, 0.98), rgba(77, 53, 157, 0.94)),
    #29204f;
  box-shadow: 0 24px 70px rgba(47, 33, 105, 0.2);
}

.hero::after {
  position: absolute;
  right: -100px;
  top: -120px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(97, 222, 242, 0.35);
  border-radius: 50%;
  box-shadow: 0 0 0 54px rgba(97, 222, 242, 0.05), 0 0 0 108px rgba(97, 222, 242, 0.035);
  content: "";
}

.brand-row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 13px;
  color: #25203f;
  background: #7ce3ed;
}

.eyebrow {
  position: relative;
  z-index: 1;
  margin: 72px 0 12px;
  color: #8be5ee;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

h1 {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(17px, 2.3vw, 21px);
  line-height: 1.8;
}

.feature-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(8px);
}

.content-card {
  margin-top: 24px;
  padding: 34px 38px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 16px 45px rgba(45, 35, 92, 0.07);
}

.content-card h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

.content-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.content-card .contact {
  margin-top: 10px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  padding: 0 24px 36px;
  color: #77728b;
  font-size: 13px;
  line-height: 1.8;
  text-align: center;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.policy-shell {
  max-width: 900px;
}

.back-link {
  display: inline-flex;
  margin: 0 0 18px;
  color: var(--violet);
  font-weight: 650;
  text-decoration: none;
}

.policy-card {
  margin-top: 0;
}

.policy-card h1 {
  margin: 0 0 24px;
  color: var(--ink);
  font-size: clamp(34px, 5vw, 52px);
}

.policy-card h2 {
  margin: 30px 0 10px;
  font-size: 20px;
}

.policy-card .policy-eyebrow {
  margin: 0 0 14px;
  color: var(--violet);
  letter-spacing: 0.08em;
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 24px, 1080px);
    padding-top: 20px;
  }

  .hero {
    border-radius: 24px;
  }

  .eyebrow {
    margin-top: 54px;
  }

  .content-card {
    padding: 26px 24px;
  }
}