@charset "UTF-8";

/* main */
@media screen and (min-width: 768px) {
  #wrapper > main {
    padding-bottom: 11rem;
  }
}

/* header */
#header {
  padding-top: 12.2rem;
  padding-left: 0;
  padding-right: 0;
  margin-left: 0;
  margin-right: 0;
  display: flex;
  flex-direction: column;
}
@media screen and (min-width: 768px) {
  #header {
    padding-top: 28.5rem;
    margin: 0 auto;
    max-width: 160rem;
    background: none;
    position: relative;
    /* z-index: 0; */
  }
  #header::before {
    content: "";
    position: absolute;
    top: 0;
    left: calc(50% - 50vw);
    right: calc(50% - 50vw);
    z-index: -20;
    height: 119rem;
    background-image: linear-gradient(to top, rgb(255, 255, 255) 0%, rgb(255, 255, 255, 0) 100%),
      radial-gradient(circle at 20% 36.8rem, rgb(255, 255, 255, 0.7) 12%, rgb(241, 241, 241, 0.7) 45%);
    background-repeat: no-repeat, no-repeat;
    background-position: 50% 76rem, 50% 0;
    background-size: 100% 43rem, 100% 119rem;
  }
}
#header h1 {
  padding: 0.25em 0;
  margin: 0.25em 0;
  font-size: 2.2rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: calc(3.15 / 45 * 1em);
}
@media screen and (min-width: 768px) {
  #header h1 {
    font-size: 4.5rem;
  }
}

/* photo */
#header .photo {
  width: 34rem;
  aspect-ratio: 1600 / 820;
}
@media screen and (min-width: 768px) {
  #header .photo {
    margin: 0 auto;
    width: 160rem;
  }
}
#header .photo img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
}

/* meta */
#header .meta {
  order: -10;
  display: flex;
  align-items: center;
  -moz-column-gap: 1.6rem;
  column-gap: 1.6rem;
}
#header .meta time {
  font-size: 1.3rem;
  font-weight: bold;
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgb(183, 28, 43);
}
@media screen and (min-width: 768px) {
  #header .meta time {
    font-size: 2.4rem;
  }
}
#header .meta .cat ul {
  padding: 0;
  margin: 0;
  list-style: none;
  display: flex;
  align-items: center;
  -moz-column-gap: 1.6rem;
  column-gap: 1.6rem;
}
#header .meta .cat a {
  padding: 0.15em 0.5em;
  display: inline-block;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.05em;
  text-indent: 0.05em;
  text-align: center;
  border-radius: 5px;
  background-color: rgb(230, 230, 230);
}
@media screen and (min-width: 768px) {
  #header .meta .cat a {
    padding: 0.1em 0.5em;
    font-size: 1.8rem;
    line-height: 1.2;
  }
}

/* topicpath */
#header .topicpath ol {
  padding: 1.3rem 0 3rem 0;
  margin: 0;
  list-style: none;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  row-gap: 0.25em;
}
@media screen and (min-width: 768px) {
  #header .topicpath ol {
    padding: 4rem 0;
  }
}
#header .topicpath li {
  padding: 0.1em 0;
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: calc(0.98 / 14 * 1em);
  color: rgb(128, 128, 128);
}
@media screen and (min-width: 768px) {
  #header .topicpath li {
    font-size: 1.4rem;
  }
}
#header .topicpath li:not(:first-of-type)::before {
  content: "\3009";
  margin-left: 1.75em;
  margin-right: 1em;
  color: rgb(184, 28, 43);
}
#header .topicpath a {
  line-height: 1;
  color: rgb(51, 51, 51);
  white-space: nowrap;
}
#header .topicpath li .image {
  display: inline-block;
  vertical-align: baseline;
  width: auto;
  height: 0.9rem;
}
@media screen and (min-width: 768px) {
  #header .topicpath li .image {
    height: 1.1rem;
  }
}
#header .topicpath li .image img {
  vertical-align: top;
  width: auto;
  max-width: none;
  height: 100%;
}

/* toc_container */
#toc_container {
  padding: 2rem;
  margin: 2rem 0;
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
  box-shadow: 0 0 4px 0 rgba(0, 0, 0, 0.08);
  background-color: rgb(255, 255, 255);
}
@media screen and (min-width: 768px) {
  #toc_container {
    padding: 4.6rem;
    margin: 4.6rem 0;
    box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.08);
    display: flex;
  }
}
#toc_container .toc_title {
  padding: 0.2em 0 2rem 0;
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.4;
  letter-spacing: 0.05em;
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #toc_container .toc_title {
    padding: 0.2em 4.6rem 0.2em 0;
    font-size: 2.5rem;
  }
}
#toc_container ul {
  padding: 0;
  margin: 0;
  list-style: none;
}
#toc_container .toc_list > li + li {
  margin-top: 1.4rem;
}
@media screen and (min-width: 768px) {
  #toc_container .toc_list > li + li {
    margin-top: 2rem;
  }
}
#toc_container .toc_list > li li {
  padding-left: 1.3rem;
  margin-top: 1.3rem;
}
@media screen and (min-width: 768px) {
  #toc_container .toc_list > li li {
    padding-left: 3.2rem;
    margin-top: 1.6rem;
  }
}
#toc_container .toc_list {
  padding-top: 2rem;
  border-top: 1px solid rgb(230, 230, 230);
}
@media screen and (min-width: 768px) {
  #toc_container .toc_list {
    padding-top: 0;
    padding-left: 4.6rem;
    border-top: none;
    border-left: 1px solid rgb(230, 230, 230);
  }
}
#toc_container .toc_list > li > a {
  padding: 0.375em 0;
  font-size: 1.4rem;
  line-height: 1.75;
  letter-spacing: calc(1.4 / 20 * 1em);
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #toc_container .toc_list > li > a {
    font-size: 2rem;
  }
}
#toc_container .toc_list > li li a {
  padding: 0.285em 0;
  font-size: 1.3rem;
  line-height: 1.57;
  letter-spacing: calc(1.12 / 16 * 1em);
}
@media screen and (min-width: 768px) {
  #toc_container .toc_list > li li a {
    font-size: 1.6rem;
  }
}
#toc_container a:has(> .toc_number) {
  display: flex;
}
#toc_container .toc_number {
  flex-shrink: 0;
  font-weight: 500;
}
#toc_container .toc_list > li > a > .toc_number {
  min-width: 1em;
}
#toc_container .toc_list li li .toc_number {
  min-width: 2em;
}

/* content */
#content {
  padding: 4rem 0;
  display: flow-root;
  border-radius: 6px;
  position: relative;
  background-color: rgb(255, 255, 255);
}
@media screen and (min-width: 768px) {
  #content {
    padding: 6.4rem 10rem;
    margin: 0 auto;
    width: 160rem;
    min-height: 17rem;
    border-radius: 10px;
    box-sizing: border-box;
  }
}
#content h2 {
  padding: 0.15em 0;
  margin: 0;
  font-size: 1.7em;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: calc(2.45 / 35 * 1em);
}
@media screen and (min-width: 768px) {
  #content h2 {
    padding: 0.395em 0;
    font-size: 3.5rem;
    line-height: 1.69;
  }
}
#content h3 {
  padding: 0.845em 0;
  margin: 0;
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 2.69;
  letter-spacing: calc(2.45 / 35 * 1em);
  color: rgb(255, 255, 255);
  -webkit-text-decoration-line: underline;
  text-decoration-line: underline;
  text-decoration-thickness: calc(76 / 35 * 1em);
  text-underline-offset: -1.45em;
  -webkit-text-decoration-color: rgb(0, 0, 0);
  text-decoration-color: rgb(0, 0, 0);
  -webkit-text-decoration-skip-ink: none;
  text-decoration-skip-ink: none;
}
@media screen and (min-width: 768px) {
  #content h3 {
    font-size: 3.5rem;
  }
}
#content h3::before,
#content h3::after {
  content: "\a0";
  font-size: 200%;
  line-height: 0.5;
}
#content h4 {
  padding: 0.2em 0 0.2em 0.75em;
  margin: 0.4em 0;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: calc(1.82 / 26 * 1em);
  border-left: 2px solid rgb(184, 28, 43);
}
@media screen and (min-width: 768px) {
  #content h4 {
    font-size: 2.6rem;
  }
}
#content h5 {
  padding: 0.25em 0;
  margin: 0;
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: calc(1.4 / 20 * 1em);
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #content h5 {
    padding: 0.575em 0;
    font-size: 2rem;
    font-weight: bold;
    line-height: 2.15;
  }
}
#content h6 {
  padding: 0.395em 0;
  margin: 0;
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.79;
  letter-spacing: calc(1.4 / 20 * 1em);
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #content h6 {
    padding: 0.575em 0;
    font-size: 2rem;
    line-height: 2.15;
  }
}
#content p {
  padding: 0.395em 0;
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.79;
  letter-spacing: calc(1.96 / 28 * 1em);
}
@media screen and (min-width: 768px) {
  #content p {
    padding: 0.575em 0;
    font-size: 2rem;
    line-height: 2.15;
    letter-spacing: calc(1.4 / 20 * 1em);
  }
}
#content figure {
  margin-left: 0;
  margin-right: 0;
}
#content figure img {
  border-radius: 6px;
}
@media screen and (min-width: 768px) {
  #content figure img {
    border-radius: 10px;
  }
}
#content figcaption {
  padding: 0.27em 0;
  font-size: 1.3rem;
  line-height: 1.54;
  letter-spacing: calc(1.82 / 26 * 1em);
}
@media screen and (min-width: 768px) {
  #content figcaption {
    padding: 0.475em 0;
    font-size: 1.6rem;
    line-height: 1.95;
    letter-spacing: calc(1.12 / 16 * 1em);
  }
}

/* author */
#author {
  padding: 1.8rem;
  margin: 1.8rem 0 0 0;
  box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.08);
  box-sizing: border-box;
  background-color: rgb(255, 255, 255);
}
@media screen and (min-width: 768px) {
  #author {
    padding: 3.6rem;
    margin: 3rem auto 0 auto;
    max-width: 140rem;
  }
}
#author dl {
  margin: 0;
}
@media screen and (min-width: 768px) {
  #author dl > div {
    display: flex;
    align-items: flex-start;
  }
  #author dl > div > dt {
    flex-basis: 36.8rem;
    flex-shrink: 0;
    padding-right: 3.6rem;
    box-sizing: border-box;
  }
  #author dl > div > dd {
    flex-grow: 1;
    padding-left: 3.6rem;
    box-sizing: border-box;
  }
}
#author dt {
  padding-bottom: 1.8rem;
  display: flex;
  align-items: center;
  -moz-column-gap: 1.5rem;
  column-gap: 1.5rem;
}
@media screen and (min-width: 768px) {
  #author dt {
    padding-bottom: 0;
    -moz-column-gap: 2.2rem;
    column-gap: 2.2rem;
  }
}
#author dt .avatar .image {
  width: 8.5rem;
  height: 8.5rem;
}
@media screen and (min-width: 768px) {
  #author dt .avatar .image {
    width: 12rem;
    height: 12rem;
  }
}
#author dt .avatar .image img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  -o-object-fit: cover;
  object-fit: cover;
}
#author dt .name {
  padding: 0.1em 0;
  display: block;
  font-size: 1.7rem;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #author dt .name {
    font-size: 1.8rem;
  }
}
#author dt .ttl {
  padding: 0.2em 0;
  display: block;
  font-size: 1.3rem;
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #author dt .ttl {
    font-size: 1.4rem;
  }
}
#author dd {
  padding-top: 1.8rem;

  margin: 0;
  border-top: 1px solid rgb(230, 230, 230);
}
@media screen and (min-width: 768px) {
  #author dd {
    padding-top: 0;
    border-top: none;
    border-left: 1px solid rgb(230, 230, 230);
  }
}
#author dd section + section {
  margin-top: 1.4rem;
}
@media screen and (min-width: 768px) {
  #author dd section + section {
    margin-top: 1.6rem;
  }
}
#author dd h3 {
  padding: 0.23em 0;
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.46;
  letter-spacing: calc(1.4 / 20 * 1em);
  color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px) {
  #author dd h3 {
    font-size: 2rem;
  }
}
#author dd .desc {
  padding: 0.395em 0;
  font-size: 1.4rem;
  line-height: 1.79;
}
@media screen and (min-width: 768px) {
  #author dd .desc {
    padding: 0.475em 0;
    font-size: 1.6rem;
    line-height: 1.95;
  }
}
#author dd .desc p {
  margin: 0;
  letter-spacing: calc(1.12 / 16 * 1em);
}

/* pagination */
#pagination {
  padding: 6.2rem 0;
}
#pagination > div {
  display: flex;
  align-items: center;
  justify-content: center;
}
@media screen and (min-width: 768px) {
  #pagination > div {
    margin: 0 auto;
    width: -webkit-fit-content;
    width: -moz-fit-content;
    width: fit-content;
    min-width: 64rem;
  }
}
#pagination .back {
  padding: 7px 1rem 4px 1rem;
  display: block;
  border-bottom: 3px solid rgb(172, 40, 44);
}
#pagination .back .image {
  display: inline-block;
  width: 11.4rem;
}
@media screen and (min-width: 768px) {
  #pagination .back .image {
    width: 11.4rem;
  }
}
#pagination .back .image img {
  width: 100%;
}

#pagination a[rel] {
  white-space: nowrap;
  overflow: hidden;
}
#pagination a[rel]::before {
  content: "";
  display: inline-block;
  width: 100%;
}
#pagination > div:not(:has(a[rel="prev"]))::before,
#pagination > div:not(:has(a[rel="next"]))::after {
  content: "";
  -webkit-filter: grayscale(100%) contrast(0) brightness(170%);
  filter: grayscale(100%) contrast(0) brightness(170%);
}
#pagination a[rel],
#pagination > div:not(:has(a[rel="prev"]))::before,
#pagination > div:not(:has(a[rel="next"]))::after {
  display: inline-block;
  width: 4.5rem;
  height: 4.5rem;
  border: solid 1px rgb(184, 28, 43);
  border-radius: 50%;
  box-sizing: border-box;
  background: url(../images/ico_arrow1.svg) no-repeat 50% 50% / 0.9rem 1.4rem;
}
@media screen and (min-width: 768px) {
  #pagination a[rel],
  #pagination > div:not(:has(a[rel="prev"]))::before,
  #pagination > div:not(:has(a[rel="next"]))::after {
    width: 5.6rem;
    height: 5.6rem;
  }
}
#pagination a[rel="prev"],
#pagination > div:not(:has(a[rel="prev"]))::before {
  margin-right: 1.6rem;
  margin-right: auto;
  scale: -1 1;
}
#pagination a[rel="next"],
#pagination > div:not(:has(a[rel="next"]))::after {
  margin-left: 1.6rem;
  margin-left: auto;
}