.c-content * {
  line-height: 1.65;
}
.c-content p {
  font-size: 1.8rem;
  line-height: 1.65;
  margin-bottom: 3rem;
}
.c-content p + :is(h1, h2, h3, h4, h5, h6) {
  margin-top: 6rem;
}
.c-content h2 {
  font-size: 2.6rem;
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: 6rem;
  padding-left: 1.2rem;
  border-left: 0.6rem solid var(--c-blue);
}
.c-content h3 {
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 3rem;
}
.c-content h3::after {
  content: "";
  display: block;
  width: 9rem;
  height: 0.2rem;
  background-color: var(--c-blue);
  margin-top: 0.3rem;
}
.c-content h4 {
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.5;
  border-bottom: 0.2rem solid var(--c-blue);
  padding-bottom: 1rem;
  margin-bottom: 3rem;
}
.c-content h5 {
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  padding: 0.15rem 0 0.15rem 0.9rem;
  border-left: 0.3rem solid var(--c-blue);
}
.c-content h6 {
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1.5rem;
}
.c-content ol {
  list-style: decimal;
  margin-bottom: 3rem;
  padding: 3rem 3rem 3rem 5rem;
  background-color: var(--c-light);
}
.c-content ul:not(.c-category) {
  list-style: disc;
  margin-bottom: 3rem;
  padding: 3rem 3rem 3rem 5rem;
  background-color: var(--c-light);
}
.c-content li {
  font-size: 1.8rem;
  line-height: 1.5;
}
.c-content li:not(:last-child) {
  margin-bottom: 1.5rem;
}
.c-content hr {
  margin: 6rem 0;
}
.c-content img {
  margin-bottom: 3rem;
}
.c-content strong {
  padding-bottom: 0.2rem;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(70%, transparent), color-stop(70%, var(--c-light-yellow)));
  background: linear-gradient(transparent 70%, var(--c-light-yellow) 70%);
}

.c-footer {
  margin-top: 6rem;
}

.container {
  overflow: initial;
}

.c-singleflex {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 5rem;
}
.c-singleflex .c-content {
  width: calc(100% - 41rem);
}
.c-singleflex .c-single__nav {
  width: 36rem;
}

.c-date {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--c-black);
}

.c-date__published {
  font-size: 1.4rem !important;
  border: 1px solid var(--c-gray);
  padding: 0.2rem 1rem;
  background-color: var(--c-light-blue);
  margin-bottom: 0 !important;
}

.c-date__updated {
  font-size: 1.4rem !important;
  border: 1px solid var(--c-blue);
  padding: 0.2rem 1rem;
  background-color: var(--c-light-blue);
  margin-bottom: 0 !important;
}

@media screen and (max-width: 1000px) {
  .c-singleflex {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .c-singleflex .c-content {
    -webkit-box-ordinal-group: 3;
        -ms-flex-order: 2;
            order: 2;
    width: 100%;
  }
  .c-singleflex .c-single__nav {
    -webkit-box-ordinal-group: 2;
        -ms-flex-order: 1;
            order: 1;
    width: 100%;
  }
}
@media screen and (max-width: 750px) {
  .c-content p {
    font-size: 2.8rem;
    margin-bottom: 5rem;
  }
  .c-content img {
    margin-bottom: 5rem;
  }
  .c-content h2 {
    font-size: 3.4rem;
    margin-bottom: 8rem;
  }
  .c-content h3 {
    font-size: 3.2rem;
    margin-bottom: 5rem;
  }
  .c-content h4 {
    font-size: 3rem;
    margin-bottom: 5rem;
  }
  .c-content h5 {
    font-size: 2.8rem;
    margin-bottom: 2rem;
  }
  .c-content h6 {
    font-size: 2.8rem;
    margin-bottom: 2rem;
  }
  .c-content ol {
    padding: 4rem 4rem 4rem 8rem;
    margin-bottom: 5rem;
  }
  .c-content ul:not(.c-category) {
    margin-bottom: 5rem;
    padding: 4rem 4rem 4rem 8rem;
  }
  .c-content li {
    font-size: 2.8rem;
  }
  .c-content li:not(:last-child) {
    margin-bottom: 2rem;
  }
  .c-date {
    gap: 2rem;
  }
  .c-date__published {
    font-size: 2.2rem !important;
    padding: 0.4rem 2rem;
  }
  .c-date__updated {
    font-size: 2.2rem !important;
    padding: 0.4rem 2rem;
  }
}
.c-toc__wrap {
  position: sticky;
  top: 0;
  background-color: var(--c-light);
  max-height: 100vh;
  overflow: scroll;
}
.c-toc__wrap ul:not(.c-category) {
  background-color: transparent;
}

.c-toc__wrap--inner {
  padding: 0 2rem 2rem;
}

.c-toc__title {
  font-size: 1.6rem;
  padding: 2rem;
  cursor: pointer;
}
.c-toc__title.active span::after {
  opacity: 0;
  -webkit-transform: rotate(0deg);
          transform: rotate(0deg);
}
.c-toc__title span {
  display: inline-block;
  position: relative;
}
.c-toc__title span::after, .c-toc__title span::before {
  content: "";
  display: block;
  width: 1.4rem;
  height: 0.3rem;
  background-color: var(--c-black);
  position: absolute;
}
.c-toc__title span::after {
  right: -3rem;
  top: calc(50% - 0.1rem);
  -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
  -webkit-transition: 0.3s;
  transition: 0.3s;
}
.c-toc__title span::before {
  right: -3rem;
  top: calc(50% - 0.1rem);
}

.c-toc {
  padding-left: 3rem;
  list-style: decimal-leading-zero !important;
}
.c-toc li {
  font-size: 1.6rem;
  line-height: 1.5;
}
.c-toc li:not(:last-child) {
  margin-bottom: 1rem;
}
.c-toc > li {
  position: relative;
}
.c-toc > li:not(:last-child) {
  margin-bottom: 2rem;
}
.c-toc > li > a {
  margin-right: 2.2rem;
}
.c-toc a {
  color: var(--c-black);
  display: block;
}
.c-toc .arrow {
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-right: 1rem solid transparent;
  border-left: 1rem solid transparent;
  border-top: 1.3rem solid var(--c-black);
  border-bottom: 0;
  position: absolute;
  right: 0;
  top: 0.7rem;
  z-index: 1;
  cursor: pointer;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}
.c-toc .arrow.active {
  -webkit-transform: rotate(180deg);
          transform: rotate(180deg);
}

.c-toc--child {
  margin-top: 1rem;
  list-style: disc !important;
  display: none;
}

@media screen and (max-width: 1000px) {
  .c-toc__wrap {
    position: static;
    max-height: initial;
  }
}
@media screen and (max-width: 750px) {
  .c-toc {
    padding-left: 4.5rem;
  }
  .c-toc li {
    font-size: 2.4rem;
  }
  .c-toc > li:not(:last-child) {
    margin-bottom: 4rem;
  }
  .c-toc > li > a {
    margin-right: 5.5rem;
  }
  .c-toc .arrow {
    top: 0.9rem;
    border-right: 1.5rem solid transparent;
    border-left: 1.5rem solid transparent;
    border-top: 1.4rem solid var(--c-black);
  }
  .c-toc--child {
    margin-top: 2rem;
  }
  .c-toc__title {
    font-size: 2.8rem;
    padding: 3rem;
  }
  .c-toc__title span::after, .c-toc__title span::before {
    width: 2.2rem;
    height: 0.4rem;
  }
  .c-toc__wrap--inner {
    padding: 0 3rem 3rem;
  }
}