/* cn：步骤驱动 — 时间轴编号、森林绿与沙色 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: #e8dcc4;
  color: #0f2419;
  font-family: "Trebuchet MS", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
.wrap { width: min(860px, 92vw); margin: 0 auto; }

.bar {
  background: #1e4d3a;
  color: #e8dcc4;
  padding: 22px 0 0;
}
.bar .wrap { padding-bottom: 0; }
.mark {
  display: block;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #f3ead6;
  text-decoration: none;
  letter-spacing: 0.06em;
}
.links {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 16px;
}
.links a {
  color: #c9dcc8;
  text-decoration: none;
  padding: 10px 22px;
  border: 1px solid #3a6b55;
  border-bottom: none;
  background: #16382b;
}
.links a.here { background: #e8dcc4; color: #1e4d3a; font-weight: 700; }

.intro {
  background: #0f2419;
  color: #f4ecda;
  padding: 42px 0 36px;
  text-align: center;
}
.intro h1 {
  font-size: 1.75rem;
  margin-bottom: 14px;
  line-height: 1.4;
}
.intro p { margin: 0 auto 18px; max-width: 38em; color: #d5cbb3; }
.intro a.big {
  display: inline-block;
  background: #c4a35a;
  color: #0f2419;
  font-weight: 800;
  text-decoration: none;
  padding: 12px 28px;
}

.rail {
  position: relative;
  padding: 36px 0 20px;
}
.rail::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: #1e4d3a;
}
.step {
  position: relative;
  background: #f7f1e4;
  margin: 0 0 22px 72px;
  padding: 18px 20px 20px;
  border: 1px solid #c9b896;
}
.step .num {
  position: absolute;
  left: -60px;
  top: 16px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #1e4d3a;
  color: #f3ead6;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h2 { font-size: 1.15rem; color: #1e4d3a; margin-bottom: 8px; }
.step p { margin-bottom: 10px; }
.step ul, .step ol { margin: 0 0 10px 1.2em; }
.step table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 8px 0;
}
.step th, .step td { border: 1px solid #c9b896; padding: 6px 8px; }
.step th { background: #1e4d3a; color: #f3ead6; }
.danger { background: #f8e6e2; border-color: #a85a4a; }
.danger .num { background: #8a2b2b; }
.btns a {
  display: inline-block;
  margin: 4px 6px 4px 0;
  padding: 8px 12px;
  background: #1e4d3a;
  color: #f3ead6;
  text-decoration: none;
}
.faq h3 { font-size: 1rem; margin: 12px 0 6px; color: #1e4d3a; }

.base {
  background: #0f2419;
  color: #c9c0aa;
  padding: 28px 0 36px;
  font-size: 0.86rem;
}
.base p { margin: 0 0 10px; }
.base a { color: #d4b56a; }

@media (max-width: 600px) {
  .rail::before { left: 18px; }
  .step { margin-left: 52px; }
  .step .num { left: -46px; width: 32px; height: 32px; }
  .links { flex-direction: column; align-items: stretch; }
}