.site {
  min-height: 100vh;
  color: #172033;
  background:
    radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.18), transparent 32%),
    radial-gradient(circle at 100% 8%, rgba(190, 58, 90, 0.14), transparent 28%),
    radial-gradient(circle at 70% 40%, rgba(217, 119, 6, 0.12), transparent 26%),
    linear-gradient(180deg, #f3f7ff 0%, #f7f4ee 46%, #f4eef8 100%);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 7vw;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}
.mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, #2563eb, #0f6e6a);
  color: #fff;
  font-weight: 650;
}
.brand strong,
.brand small {
  display: block;
}
.brand strong {
  font-size: 15px;
  letter-spacing: 0.02em;
}
.brand small,
.eyebrow {
  color: #2563eb;
  letter-spacing: 0.16em;
}
.brand small {
  margin-top: 2px;
  font-size: 11px;
}
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 22px;
}
nav a {
  color: #243246;
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
}
nav a:hover {
  color: #2563eb;
}
main {
  width: min(1120px, calc(100% - 12vw));
  margin: 0 auto;
  padding: 72px 0 48px;
}
.hero {
  max-width: 820px;
  padding-bottom: 56px;
}
.eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 620;
}
h1 {
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.18;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, #1d4ed8 0%, #0f6e6a 58%, #be3a5a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead,
.about p,
footer span {
  color: #3d4b5c;
  font-size: 18px;
  line-height: 1.8;
}
.lead {
  max-width: 680px;
  margin: 22px 0 0;
}
.panel,
.about {
  scroll-margin-top: 92px;
}
.panel {
  padding: 36px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.82);
}
h2 {
  font-size: 28px;
  line-height: 1.35;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
li {
  min-height: 168px;
  padding: 20px 16px 22px;
  border-radius: 18px;
  border-top: 4px solid transparent;
}
li.teal {
  background: #e7f6f4;
  border-top-color: #0f6e6a;
}
li.blue {
  background: #e8f0ff;
  border-top-color: #2563eb;
}
li.amber {
  background: #fff4e5;
  border-top-color: #d97706;
}
li.violet {
  background: #f3eaff;
  border-top-color: #7c3aed;
}
li.rose {
  background: #fdecef;
  border-top-color: #be3a5a;
}
h3 {
  font-size: 22px;
}
li.teal h3 { color: #0f6e6a; }
li.blue h3 { color: #1d4ed8; }
li.amber h3 { color: #b45309; }
li.violet h3 { color: #6d28d9; }
li.rose h3 { color: #be3a5a; }
li p {
  margin: 12px 0 0;
  color: #526170;
  font-size: 14px;
  line-height: 1.7;
}
.about {
  max-width: 760px;
  padding: 64px 0 24px;
}
.about p {
  margin: 16px 0 0;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 7vw 36px;
  border-top: 1px solid rgba(23, 32, 51, 0.08);
}
footer strong {
  font-size: 15px;
}
footer span,
footer p {
  max-width: 640px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  text-align: right;
}
footer a {
  color: #1d4ed8;
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}
.split article,
.contact dl {
  padding: 24px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(37, 99, 235, 0.12);
}
.split p,
.contact dd {
  margin: 10px 0 0;
  color: #526170;
  font-size: 15px;
  line-height: 1.75;
}
.contact {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}
.contact dt {
  margin-top: 14px;
  color: #2563eb;
  font-size: 12px;
  letter-spacing: 0.12em;
}
.contact dt:first-child {
  margin-top: 0;
}
.notice {
  margin-top: 16px;
  color: #526170;
  font-size: 14px;
  line-height: 1.7;
}
@media (max-width: 980px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 720px) {
  .top,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
  main {
    width: min(1120px, calc(100% - 40px));
    padding-top: 48px;
  }
  .panel {
    padding: 22px 18px;
  }
  .cards,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }
  footer span {
    text-align: left;
  }
}