:root {
  color-scheme: light;
  --paper: #f4f5f2;
  --paper-strong: #ffffff;
  --ink: #18201c;
  --ink-soft: #4f5953;
  --line: #cfd5d1;
  --line-strong: #9ba7a0;
  --accent: #365b49;
  --accent-soft: #e2e9e4;
  --content-width: 68rem;
  --reading-width: 46rem;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--paper);
}

a {
  color: inherit;
  text-decoration-color: var(--line-strong);
  text-decoration-thickness: 0.08rem;
  text-underline-offset: 0.24rem;
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

a:focus-visible {
  border-radius: 0.15rem;
  outline: 0.18rem solid var(--accent);
  outline-offset: 0.22rem;
}

.site-header {
  border-bottom: 0.0625rem solid var(--line);
  background: rgba(244, 245, 242, 0.96);
}

.site-header__inner {
  display: flex;
  width: min(calc(100% - 3rem), var(--content-width));
  min-height: 4.5rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 650;
  text-decoration: none;
}

.brand::before {
  width: 1.65rem;
  height: 0.32rem;
  border: 0.0625rem solid var(--accent);
  background: var(--accent-soft);
  content: "";
}

.site-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 1.5rem;
  white-space: nowrap;
}

.site-nav a {
  border-bottom: 0.125rem solid transparent;
  color: var(--ink-soft);
  font-size: 0.9rem;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  border-bottom-color: var(--accent);
  color: var(--ink);
}

.page-shell {
  width: min(calc(100% - 3rem), var(--content-width));
  margin: 0 auto;
}

.home-main {
  padding: 5.75rem 0 4rem;
}

.home-hero {
  max-width: 49rem;
  padding-bottom: 5rem;
}

.home-hero h1 {
  margin: 0;
  font-size: 5rem;
  font-weight: 640;
  line-height: 1.08;
}

.home-hero__lead {
  max-width: 34rem;
  margin: 1.6rem 0 2.4rem;
  color: var(--accent);
  font-size: 1.55rem;
  line-height: 1.5;
}

.home-hero__body {
  max-width: 42rem;
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 1.06rem;
}

.home-facts {
  display: grid;
  padding: 2rem 0;
  border-top: 0.0625rem solid var(--line-strong);
  border-bottom: 0.0625rem solid var(--line);
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2rem;
}

.home-facts p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.home-navigation-note {
  margin: 1.4rem 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.legal-main {
  padding: 4.5rem 0 6rem;
}

.legal-article {
  width: min(100%, var(--reading-width));
  margin: 0 auto;
}

.legal-article__header {
  padding-bottom: 2.75rem;
  border-bottom: 0.0625rem solid var(--line-strong);
  margin-bottom: 3rem;
}

.legal-article h1 {
  margin: 0 0 1rem;
  font-size: 3rem;
  font-weight: 640;
  line-height: 1.2;
}

.legal-article__header p {
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
}

.legal-article section {
  padding-top: 0.4rem;
}

.legal-article h2 {
  margin: 3rem 0 1rem;
  padding-top: 1.35rem;
  border-top: 0.0625rem solid var(--line);
  font-size: 1.38rem;
  font-weight: 650;
  line-height: 1.4;
}

.legal-article h3 {
  margin: 2rem 0 0.65rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.legal-article p,
.legal-article li {
  color: #313b35;
  font-size: 1rem;
}

.legal-article p {
  margin: 0.85rem 0;
}

.legal-article ul,
.legal-article ol {
  padding-left: 1.35rem;
  margin: 1rem 0 1.5rem;
}

.legal-article li + li {
  margin-top: 0.48rem;
}

.support-contact {
  padding: 1.5rem 0;
  border-top: 0.0625rem solid var(--line-strong);
  border-bottom: 0.0625rem solid var(--line);
  margin: 2.5rem 0 3rem;
}

.support-contact p {
  margin: 0.35rem 0;
}

.site-footer {
  border-top: 0.0625rem solid var(--line);
}

.site-footer__inner {
  display: flex;
  width: min(calc(100% - 3rem), var(--content-width));
  min-height: 6rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-footer p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

@media (max-width: 48rem) {
  .site-header__inner {
    width: min(calc(100% - 2rem), var(--content-width));
    min-height: auto;
    padding: 1rem 0 0.8rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.85rem;
  }

  .site-nav {
    width: 100%;
    padding-bottom: 0.2rem;
    gap: 1.15rem;
    overflow-x: auto;
  }

  .site-nav a {
    padding-bottom: 0.2rem;
  }

  .page-shell {
    width: min(calc(100% - 2rem), var(--content-width));
  }

  .home-main {
    padding: 3.75rem 0 3rem;
  }

  .home-hero {
    padding-bottom: 3.75rem;
  }

  .home-hero h1 {
    font-size: 3.5rem;
  }

  .home-hero__lead {
    margin: 1.25rem 0 2rem;
    font-size: 1.3rem;
  }

  .home-facts {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .legal-main {
    padding: 3.25rem 0 4.5rem;
  }

  .legal-article h1 {
    font-size: 2.2rem;
  }

  .legal-article h2 {
    margin-top: 2.4rem;
    font-size: 1.25rem;
  }

  .site-footer__inner {
    width: min(calc(100% - 2rem), var(--content-width));
    padding: 1.6rem 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }
}