@charset "UTF-8";

body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 2;
  color: #333;
  background: #faf7f2;
  margin: 0;
  padding: 20px;
}
.wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  padding: 30px 36px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.blog-header {
  border-bottom: 4px solid #4a7c59;
  padding-bottom: 14px;
  margin-bottom: 28px;
}
.blog-header h1 {
  font-size: 26px;
  margin: 0 0 6px 0;
  color: #2d4a33;
}
.blog-header .date {
  font-size: 13px;
  color: #999;
}
.tag {
  display: inline-block;
  background: #eaf3ec;
  color: #2d4a33;
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 12px;
  margin-right: 4px;
}
h2 {
  font-size: 22px;
  margin: 36px 0 14px 0;
  padding-left: 14px;
  border-left: 5px solid #4a7c59;
  color: #2d4a33;
}
h3 {
  font-size: 18px;
  margin: 24px 0 10px 0;
  color: #3d5e46;
}
h4 {
  font-size: 16px;
  margin: 18px 0 8px 0;
  color: #3d5e46;
}
p {
  margin: 10px 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
table th, table td {
  border: 1px solid #dcdcdc;
  padding: 8px 10px;
  vertical-align: top;
}
table th {
  background: #eaf3ec;
  font-weight: bold;
}
table td {
  background: #fff;
}
.highlight {
  color: #c0392b;
  font-weight: bold;
}
.marker-yellow {
  background: #fffacd;
  padding: 1px 4px;
}
.marker-green {
  background: #d4edda;
  padding: 1px 4px;
}
.box-gray {
  background: #f7f7f7;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 16px 20px;
  margin: 16px 0;
}
.box-dot {
  background: #fafafa;
  border: 2px dashed #aaa;
  border-radius: 8px;
  padding: 16px 20px;
  margin: 16px 0;
}
ul, ol {
  padding-left: 24px;
}
li {
  margin-bottom: 6px;
}
.img-placeholder {
  text-align: center;
  padding: 20px;
  background: #f0f0f0;
  border-radius: 6px;
  margin: 12px 0;
  color: #888;
  font-size: 14px;
}
a {
  color: #1a6fb5;
  text-decoration: underline;
}
a:hover {
  color: #d44;
}
.qa-q {
  background: #f4b3c2;
  font-size: 12px;
  font-weight: bold;
  text-align: center;
  width: 30px;
}
.qa-a {
  background: #c1e4e9;
  font-size: 12px;
  font-weight: bold;
  text-align: center;
  width: 30px;
}