:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #17342d;
  background: #f5f7f4;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #edf4ef 0, #f8f9f7 28rem);
}

a {
  color: #0b5d4b;
  text-underline-offset: 0.2em;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid #c88c2b;
  outline-offset: 4px;
  border-radius: 0.25rem;
}

.shell {
  width: min(100% - 2rem, 52rem);
  margin-inline: auto;
}

.page {
  padding: 3rem 0 2rem;
}

.hero {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 2.25rem 0 1.5rem;
}

.brand-mark {
  display: grid;
  width: 4.25rem;
  height: 4.25rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 1.2rem;
  color: #fff;
  background: #0b5d4b;
  box-shadow: 0 0.75rem 2rem rgb(17 72 59 / 18%);
  font-size: 1.75rem;
  font-weight: 700;
}

h1,
h2 {
  color: #143a31;
  line-height: 1.25;
}

h1 {
  margin: 0.25rem 0;
  font-size: clamp(2rem, 7vw, 3.2rem);
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 1.25rem;
}

p,
li {
  line-height: 1.75;
}

.eyebrow {
  margin: 0;
  color: #52766d;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.03em;
}

.lead {
  margin: 0.5rem 0 0;
  color: #456a61;
  font-size: 1.05rem;
}

.meta {
  color: #617b75;
  font-size: 0.9rem;
}

.notice,
.legal section,
.link-card {
  border: 1px solid #d6e3dc;
  border-radius: 1rem;
  background: rgb(255 255 255 / 92%);
  box-shadow: 0 0.6rem 1.8rem rgb(16 66 54 / 6%);
}

.notice,
.legal section {
  margin: 1rem 0;
  padding: 1.25rem;
}

.notice p:last-child,
.legal section p:last-child,
.legal section ul:last-child {
  margin-bottom: 0;
}

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

.link-card {
  display: grid;
  gap: 0.4rem;
  padding: 1.25rem;
  color: #143a31;
  text-decoration: none;
}

.link-card:hover {
  border-color: #7ba795;
  transform: translateY(-1px);
}

.link-card span {
  font-size: 1.12rem;
  font-weight: 700;
}

.link-card small {
  color: #5c766f;
  line-height: 1.55;
}

.legal header {
  padding: 1.5rem 0 0.5rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 0.75rem;
}

ul {
  padding-left: 1.25rem;
}

details {
  border-top: 1px solid #e0e8e4;
  padding: 0.95rem 0;
}

details:first-of-type {
  border-top: 0;
}

summary {
  cursor: pointer;
  color: #173f35;
  font-weight: 700;
}

details p {
  margin-bottom: 0;
}

footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-top: 1.5rem;
  padding: 1.25rem 0;
  color: #6c7e79;
  font-size: 0.85rem;
}

footer p {
  margin: 0;
}

@media (max-width: 520px) {
  .page {
    padding-top: 1.5rem;
  }

  .hero {
    align-items: flex-start;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}