* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f6f3ee;
  color: #2f2a25;
  font-family: "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.8;
}

a {
  color: #8a4b21;
  text-decoration: none;
}

a:hover {
  color: #b45f22;
  text-decoration: underline;
}

.explain-page {
  width: min(1040px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.explain-header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.explain-header a,
.explain-cycle a,
.explain-link-grid a {
  border: 1px solid #e4d2bb;
  background: #fffaf3;
  border-radius: 8px;
}

.explain-header a {
  padding: 7px 12px;
  font-size: 14px;
}

.explain-article,
.explain-more,
.explain-footer {
  background: #fff;
  border: 1px solid #eadcc9;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 18px rgba(80, 50, 25, 0.06);
}

.eyebrow {
  margin: 0 0 6px;
  color: #926135;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0 0 16px;
  color: #4a2a15;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.25;
}

h2 {
  margin: 0 0 12px;
  color: #4a2a15;
  font-size: 22px;
  line-height: 1.35;
}

p {
  margin: 0 0 12px;
}

.lead {
  color: #6f6258;
  font-size: 15px;
  line-height: 1.8;
  border-left: 3px solid #d8b58b;
  padding-left: 12px;
  background: #fffaf3;
}

.auto-supplement {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #eadcc9;
}

.auto-supplement h2 {
  font-size: 20px;
}

.explain-cycle {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.explain-cycle a {
  min-height: 44px;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 14px;
}

.explain-more {
  margin-top: 14px;
}

.explain-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 8px;
}

.explain-link-grid a {
  min-height: 38px;
  padding: 7px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 14px;
  color: #5a351f;
}

.explain-index .explain-link-grid {
  grid-template-columns: repeat(auto-fit, minmax(104px, 1fr));
}

.explain-footer {
  margin-top: 14px;
  color: #73665d;
  font-size: 13px;
  text-align: center;
}

@media (max-width: 700px) {
  .explain-page {
    width: min(100% - 18px, 1040px);
    padding-top: 14px;
  }

  .explain-article,
  .explain-more,
  .explain-footer {
    padding: 15px;
  }

  .explain-cycle {
    grid-template-columns: 1fr;
  }
}