@charset "utf-8";

* { box-sizing: border-box; }
html, body { width: 100%; overflow-x: hidden; }

.lnb{
  width: 260px;
  flex: 0 0 260px;
}

.sub_head {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 20px 20px 60px;
  color: #222;
}

.sub_head_title {
  border: 1px solid #ddd;
  padding: 16px;
  margin-bottom: 16px;
  background: #fafafa;
}

.sub_head_title h2 {
  margin: 0 0 8px;
  font-size: 26px;
}

.sub_head_title p {
  margin: 0;
  line-height: 1.6;
  font-size: 14px;
  color: #555;
}

.sub_content_layout {
  display: flex;
  gap: 16px;
}

.sub_content_left,
.sub_content_right {
  width: 100%;
}

.box {
  border: 1px solid #ddd;
  background: #fff;
  padding: 14px;
  margin-bottom: 16px;
}

.box h3 {
  margin: 0 0 10px;
  font-size: 18px;
  border-bottom: 1px solid #eee;
  padding-bottom: 8px;
}

.img_wrap {
  border: 1px solid #eee;
  background: #f5f5f5;
  padding: 8px;
}

.img_wrap img {
  width: 100%;
  height: auto;
  display: block;
}

.small {
  margin: 10px 0 0;
  font-size: 12px;
  color: #666;
}

.table_wrap {
  border: 1px solid #eee;
  overflow: auto;
  margin-top: 10px;
}

.area_table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.area_table th,
.area_table td {
  border: 1px solid #e5e5e5;
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

.area_table th {
  background: #f0f0f0;
}

.area_table td.sr_choice {
  padding: 0;
}

.area_table td.sr_choice > a {
  display: block;
  padding: 10px;
  color: #222;
  text-decoration: none;
  font-weight: 700;
}

.area_table tbody tr:hover td {
  background: #f4f6ff;
}

.area_table tbody tr:hover td.sr_choice > a {
  text-decoration: underline;
}

.area_table tbody tr.active td {
  background: #e7ecff;
  font-weight: 700;
}

.area_table tbody tr.active td:first-child {
  border-left: 4px solid #6b7cff;
}

.area_table tbody tr.active td.sr_choice > a {
  color: #1b2a66;
}

.area_table td.sr_choice > a:focus {
  outline: 2px solid #6b7cff;
  outline-offset: -2px;
}

.top_btn {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 10px;
  border: 1px solid #ccc;
  background: #f7f7f7;
  color: #333;
  text-decoration: none;
  font-size: 13px;
}

@media (max-width: 980px) {
  .sub_content_layout {
    flex-direction: column;
  }

  .sub_content_left,
  .sub_content_right {
    width: 100%;
  }
}