/* 第4套：步骤驱动 · 左侧编号轨 · 松绿 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #eef4ef;
  color: #163027;
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  min-height: 100vh;
}
a { color: #0d4f3c; }
.side {
  background: #0d4f3c;
  color: #d7efe4;
  padding: 24px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.side .logo { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: 0.12em; }
.side .logo b { display: block; font-size: 11px; font-weight: 400; letter-spacing: 0.16em; color: #9ad4bc; margin-top: 6px; }
.side nav { margin-top: 28px; display: flex; flex-direction: column; gap: 6px; }
.side nav a {
  color: #d7efe4;
  text-decoration: none;
  padding: 9px 10px;
  border-left: 3px solid transparent;
}
.side nav a.here { background: #14624c; border-left-color: #e7b547; color: #fff; }
.side .mini { margin-top: 28px; font-size: 13px; line-height: 1.6; }
.side .mini a { color: #e7b547; }

.main { padding: 0 0 40px; }
.crumb {
  background: #fff;
  border-bottom: 1px solid #c9ddd3;
  padding: 10px 36px;
  font-size: 13px;
  color: #4d6b5e;
}
.hero-step {
  padding: 32px 36px 12px;
  background: linear-gradient(90deg, #dcece4, #eef4ef);
}
.hero-step h1 { font-size: 28px; line-height: 1.4; margin-bottom: 12px; }
.hero-step p { max-width: 720px; margin-bottom: 16px; }
.btns { display: flex; gap: 10px; flex-wrap: wrap; }
.go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #e7b547;
  color: #163027;
  text-decoration: none;
  font-weight: 700;
  padding: 10px 18px;
}
.go.soft { background: #fff; border: 1px solid #0d4f3c; color: #0d4f3c; }

section.step {
  margin: 18px 36px;
  background: #fff;
  border: 1px solid #c9ddd3;
  border-left: 6px solid #0d4f3c;
  padding: 20px 22px 18px 22px;
  position: relative;
}
section.step h2 { font-size: 20px; margin-bottom: 10px; color: #0d4f3c; }
section.step p { margin: 8px 0; }
.num {
  position: absolute;
  right: 16px;
  top: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #0d4f3c;
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
ol.flow { margin: 10px 0 10px 22px; }
ol.flow li { margin: 6px 0; }
table.req { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 14px; }
table.req th, table.req td { border: 1px solid #c9ddd3; padding: 7px 8px; text-align: left; }
table.req th { background: #e5f2ea; }
.q { margin: 12px 0; padding-bottom: 10px; border-bottom: 1px dashed #c9ddd3; }
.q b { display: block; margin-bottom: 4px; }

.base {
  margin: 24px 36px 0;
  padding-top: 14px;
  border-top: 1px solid #c9ddd3;
  font-size: 13px;
  color: #3d5a4d;
}
.base a { margin-right: 12px; }
.ok { color: #0d4f3c; font-weight: 700; }

@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .side { position: relative; height: auto; }
  .side nav { flex-direction: row; flex-wrap: wrap; }
}