:root {
  --green: #12b767;
  --green-deep: #079653;
  --text: #171c23;
  --muted: #56616d;
  --line: #dfece7;
  --soft: #f2fbf7;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  background: #f7fbf9;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(100% - 44px, 960px); margin: 0 auto; }
header { border-bottom: 1px solid #e2ece8; background: #fff; }
.top {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; font-size: 26px; font-weight: 850; }
.brand img { width: 42px; height: 42px; }
.links { display: flex; flex-wrap: wrap; gap: 18px; color: var(--green-deep); font-weight: 750; }
main { padding: 56px 0 72px; }
article {
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(27, 74, 54, 0.07);
}
.eyebrow { margin: 0 0 12px; color: var(--green-deep); font-size: 14px; font-weight: 850; }
h1 { max-width: 760px; margin: 0 0 18px; font-size: 38px; line-height: 1.22; }
h2 { margin: 34px 0 14px; font-size: 23px; line-height: 1.35; }
h3 { margin: 0 0 8px; font-size: 18px; }
p, li, td, th { color: var(--muted); font-size: 16px; line-height: 1.8; }
p { margin: 0 0 14px; }
ul, ol { margin: 0; padding-left: 24px; }
.lead { max-width: 780px; font-size: 18px; }
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.scene {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--soft);
}
.scene p { margin: 0; font-size: 15px; }
.note {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f7fbf9;
}
.guide-table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
}
.guide-table th,
.guide-table td {
  padding: 13px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.guide-table th { color: var(--text); background: var(--soft); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--green-deep);
  border-radius: 10px;
  color: #fff;
  background: var(--green-deep);
  font-weight: 800;
}
.button-secondary { color: var(--green-deep); background: #fff; }
footer { padding: 26px 0; color: #7a858f; text-align: center; font-size: 13px; }
footer a:hover, .links a:hover { text-decoration: underline; }

@media (max-width: 680px) {
  .top { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  main { padding: 34px 0 52px; }
  article { padding: 24px; }
  h1 { font-size: 31px; }
  .scene-grid { grid-template-columns: 1fr; }
  .guide-table { display: block; overflow-x: auto; }
  .button { width: 100%; }
}