:root {
  --wine: #7f1d1d;
  --clay: #9a3412;
  --cream: #faf6f1;
  --sheet: #fffdf8;
  --rule: #e7d5c5;
  --ink: #1c1917;
  --soft: #57534e;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  font-size: 17px;
  line-height: 1.85;
}

.top {
  background: var(--wine);
  color: #fef2f2;
  padding: 26px 0 0;
}
.top-box {
  width: min(720px, 92vw);
  margin: 0 auto;
  padding-bottom: 22px;
}
.wordmark {
  font-size: 15px;
  letter-spacing: 0.28em;
  text-transform: none;
}
.top h1 {
  font-size: 32px;
  line-height: 1.4;
  margin: 12px 0 14px;
  font-weight: 600;
}
.top .intro { margin: 0 0 16px; color: #fecaca; }
.acts a {
  display: inline-block;
  background: #fff7ed;
  color: var(--wine);
  text-decoration: none;
  padding: 9px 16px;
  margin: 0 8px 8px 0;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.acts a.alt {
  background: transparent;
  color: #fecaca;
  border: 1px solid #fca5a5;
}

.navline {
  background: #fffdf8;
  border-bottom: 1px solid var(--rule);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.navline ol {
  width: min(720px, 92vw);
  margin: 0 auto;
  padding: 12px 0;
  display: flex;
  gap: 28px;
  list-style: none;
}
.navline a { color: var(--clay); text-decoration: none; }
.navline a.here { color: var(--wine); font-weight: 700; border-bottom: 2px solid var(--wine); }

.sheet {
  width: min(720px, 92vw);
  margin: 0 auto 48px;
  padding-top: 8px;
}

.spine {
  position: relative;
  margin: 36px 0 0;
  padding-left: 56px;
}
.spine::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: #d6b29a;
}
.step { position: relative; margin-bottom: 32px; }
.step .num {
  position: absolute;
  left: -56px;
  top: 2px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--wine);
  color: #fff7ed;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h2 {
  font-size: 22px;
  margin: 0 0 10px;
  font-weight: 600;
}
.step p { margin: 0 0 10px; color: var(--soft); }
.step ul { margin: 0; padding-left: 1.2em; color: var(--soft); }

.block {
  margin-top: 36px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 22px 22px 16px;
}
.block h2 { font-size: 22px; margin: 0 0 10px; }
.block p { margin: 0 0 10px; color: var(--soft); }

table.slim {
  width: 100%;
  border-collapse: collapse;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
table.slim th, table.slim td {
  border-bottom: 1px solid var(--rule);
  padding: 8px 4px;
  text-align: left;
}

.q { margin: 16px 0 0; }
.q h3 {
  font-size: 17px;
  margin: 0 0 6px;
  font-family: "Microsoft YaHei", sans-serif;
}
.q p { margin: 0 0 8px; color: var(--soft); }

.foot {
  background: #1c1917;
  color: #e7e5e4;
  padding: 26px 0 34px;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 12px;
  line-height: 1.7;
}
.foot .box { width: min(720px, 92vw); margin: 0 auto; }
.foot a { color: #fca5a5; }

.ico { width: 16px; height: 16px; vertical-align: -3px; margin-right: 4px; }

@media (max-width: 640px) {
  .top h1 { font-size: 24px; }
  .spine { padding-left: 44px; }
  .step .num { width: 30px; height: 30px; left: -44px; }
}