:root {
  color-scheme: light;
  --paper: #f7f5ee;
  --ink: #172d28;
  --muted: #4c6259;
  --line: #cad3c9;
  --accent: #216a54;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-underline-offset: .25em; }
a:focus-visible { outline: 3px solid #28866a; outline-offset: 5px; }
.shell { width: min(1100px, calc(100% - 3rem)); margin-inline: auto; }

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-family: system-ui, sans-serif;
  font-size: 1.65rem;
  font-weight: 850;
  letter-spacing: -.07em;
  text-decoration: none;
}

.wordmark span,
h1 span { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; font-size: .9rem; }
nav a { text-decoration: none; }
nav a:hover { text-decoration: underline; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 7rem);
  padding-block: clamp(3rem, 7vw, 6.5rem);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 750;
  letter-spacing: .12em;
}

h1 {
  margin: .8rem 0 1.4rem;
  font-size: clamp(2.85rem, 6.6vw, 5.35rem);
  line-height: 1.08;
  letter-spacing: -.055em;
}

.intro,
.monitor > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.85;
}

.intro { max-width: 34ch; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
  padding: .8rem 1.1rem;
  background: var(--ink);
  color: white;
  border-radius: .35rem;
  text-decoration: none;
  font-weight: 650;
}

.button:hover { background: #29574a; }

.report {
  padding: clamp(1.4rem, 4vw, 2.65rem);
  color: #f6f4e9;
  background: #193a31;
  border-radius: .7rem;
}

.report-kicker {
  margin: 0;
  color: #bbdecf;
  font-size: .78rem;
  letter-spacing: .13em;
}

h2 { margin: .65rem 0 0; font-size: clamp(1.65rem, 3.5vw, 2.45rem); line-height: 1.2; }
.report dl { margin: 1.65rem 0 0; }
.report dl div { border-top: 1px solid #557269; padding: .8rem 0; }
.report dt { font-weight: 700; }
.report dd { margin: .25rem 0 0; color: #d4e6dd; font-size: .9rem; line-height: 1.5; }

.monitor {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 1.5rem;
  padding-block: 2.1rem;
  border-block: 1px solid var(--line);
}

.site-footer { border-bottom: 0; color: var(--muted); font-size: .86rem; }
.missing { padding-block: 3rem; }

@media (max-width: 660px) {
  .shell { width: calc(100% - 2rem); }
  .hero, .monitor { grid-template-columns: 1fr; }
}