/* =====================================================
 * ブログ（/blog/）
 * 対象：home.php / category.php / single.php（inc/blog.php で読み込む）
 * 本体のトンマナ（archive-ebooks / page-hero と同じ色・書体）に合わせる。
 * 記事本文の装飾 class（is-style-…）は、統合前のブログ（SWELL）で書かれた記事のもの。
 * ===================================================== */

:root {
  --blog-primary: #7CC1C9;
  --blog-light: #B4DBE0;
  --blog-accent: #28849D;
  --blog-highlight: #F0E74E;
  --blog-text: #3E5054;
  --blog-pale: #F0F8F9;
  --blog-border: #C0D5D8;
  --blog-subtle: #8AA0A4;
  --blog-font: "Zen Kaku Gothic New", YuGothic, "Yu Gothic", sans-serif;
}

.blog-archive,
.blog-single,
.blog-related {
  font-family: var(--blog-font);
  color: var(--blog-text);
}

.blog-archive *,
.blog-single *,
.blog-related * {
  color: inherit;
}

.blog-container {
  width: 90%;
  max-width: 1120px;
  margin: 0 auto;
}

.blog-container--narrow {
  max-width: 800px;
}

/* ---------- 一覧 ---------- */

.blog-archive {
  padding: 60px 0 100px;
}

.blog-cats ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 48px;
}

.blog-cats a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--blog-border);
  border-radius: 999px;
  font-size: 14px;
  text-decoration: none;
  background: #ffffff;
  transition: background .2s, border-color .2s;
}

.blog-cats a span {
  font-size: 12px;
  color: var(--blog-subtle);
}

.blog-cats a:hover,
.blog-cats a[aria-current="page"] {
  border-color: var(--blog-accent);
  background: var(--blog-pale);
  color: var(--blog-accent);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px 28px;
}

.blog-card {
  background: #ffffff;
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform .35s cubic-bezier(.22, 1, .36, 1), box-shadow .35s ease;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(40, 132, 157, .12);
}

.blog-card__link {
  display: block;
  height: 100%;
  text-decoration: none;
}

.blog-card__thumb {
  aspect-ratio: 1200 / 630;
  background: var(--blog-pale);
  overflow: hidden;
}

.blog-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card__body {
  padding: 16px 18px 20px;
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--blog-subtle);
}

.blog-card__cat {
  padding: 2px 10px;
  border-radius: 4px;
  background: var(--blog-pale);
  color: var(--blog-accent);
  letter-spacing: .5px;
}

.blog-card__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

.blog-pagination ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin-top: 56px;
}

.blog-pagination a,
.blog-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--blog-border);
  border-radius: 8px;
  font-size: 14px;
  text-decoration: none;
  background: #ffffff;
}

.blog-pagination .current {
  background: var(--blog-accent);
  border-color: var(--blog-accent);
  color: #ffffff;
}

.blog-empty {
  text-align: center;
}

/* ---------- 記事 ---------- */

.blog-single__head {
  background: var(--blog-pale);
  /* 固定ヘッダーの重なりを含む（page-hero と同じ） */
  padding: 120px 0 48px;
}

.blog-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  list-style: none;
  margin-bottom: 20px;
  font-size: 12px;
  color: var(--blog-subtle);
}

.blog-breadcrumb li + li::before {
  content: "›";
  margin: 0 8px;
}

.blog-breadcrumb a {
  color: var(--blog-subtle);
  text-decoration: none;
}

.blog-breadcrumb a:hover {
  color: var(--blog-accent);
  text-decoration: underline;
}

.blog-single__cat a {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 12px;
  border-radius: 4px;
  background: #ffffff;
  color: var(--blog-accent);
  font-size: 13px;
  text-decoration: none;
}

.blog-single__title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .5px;
  text-wrap: balance;
}

.blog-single__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--blog-subtle);
}

.blog-single__meta a {
  color: var(--blog-accent);
}

.blog-single__thumb {
  margin: 40px 0 0;
}

.blog-single__thumb img {
  border-radius: 12px;
}

.blog-toc {
  margin: 40px 0;
  padding: 24px 28px;
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  background: #ffffff;
}

.blog-toc__title {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 12px;
}

.blog-toc ol {
  list-style: none;
  counter-reset: toc;
}

.blog-toc__list > li {
  counter-increment: toc;
  padding: 6px 0;
  border-top: 1px dashed var(--blog-border);
}

.blog-toc__list > li:first-child {
  border-top: 0;
}

.blog-toc__list > li > a::before {
  content: counter(toc) ".";
  margin-right: 8px;
  color: var(--blog-accent);
  font-weight: 700;
}

.blog-toc ol ol {
  margin: 6px 0 0 26px;
}

.blog-toc ol ol li {
  padding: 3px 0;
  font-size: 14px;
}

.blog-toc a {
  text-decoration: none;
  line-height: 1.6;
}

.blog-toc a:hover {
  color: var(--blog-accent);
  text-decoration: underline;
}

/* ---------- 記事本文 ---------- */

.blog-content {
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: .3px;
  padding-bottom: 20px;
}

.blog-content > * + *,
.blog-content section > * + * {
  margin-top: 1.4em;
}

.blog-content section + section,
.blog-content > section {
  margin-top: 3em;
}

.blog-content h2 {
  margin-top: 2.6em;
  padding: 14px 18px;
  border-left: 5px solid var(--blog-accent);
  background: var(--blog-pale);
  font-size: 23px;
  line-height: 1.5;
  scroll-margin-top: 100px;
}

.blog-content h3 {
  margin-top: 2em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blog-light);
  font-size: 19px;
  line-height: 1.55;
  scroll-margin-top: 100px;
}

.blog-content h4 {
  margin-top: 1.6em;
  font-size: 17px;
}

.blog-content a {
  color: var(--blog-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-content strong {
  font-weight: 700;
  background: linear-gradient(transparent 62%, rgba(240, 231, 78, .55) 62%);
}

.blog-content ul,
.blog-content ol {
  padding-left: 1.4em;
}

.blog-content li + li {
  margin-top: .4em;
}

.blog-content img {
  width: auto;
  max-width: 100%;
  height: auto;
}

.blog-content figure {
  margin-left: 0;
  margin-right: 0;
}

.blog-content .aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.blog-content blockquote {
  padding: 16px 20px;
  border-left: 4px solid var(--blog-border);
  background: #fafcfc;
  color: var(--blog-subtle);
}

.blog-content table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}

.blog-content th,
.blog-content td {
  padding: 10px 12px;
  border: 1px solid var(--blog-border);
  text-align: left;
  vertical-align: top;
  min-width: 7em;
}

.blog-content th {
  background: var(--blog-pale);
  font-weight: 700;
}

/* 統合前のブログ（SWELL）の装飾 */
.blog-content .is-style-big_icon_good,
.blog-content .is-style-big_icon_point,
.blog-content .is-style-big_icon_memo {
  position: relative;
  margin-top: 2em;
  padding: 22px 24px 22px 76px;
  border-radius: 12px;
  border: 1px solid var(--blog-border);
  background: #ffffff;
}

.blog-content .is-style-big_icon_good::before,
.blog-content .is-style-big_icon_point::before,
.blog-content .is-style-big_icon_memo::before {
  position: absolute;
  top: 22px;
  left: 22px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
  line-height: 1;
}

.blog-content .is-style-big_icon_good {
  background: var(--blog-pale);
}

.blog-content .is-style-big_icon_good::before {
  content: "✓";
  background: var(--blog-accent);
}

.blog-content .is-style-big_icon_point::before {
  content: "!";
  background: #E8A33D;
}

.blog-content .is-style-big_icon_memo::before {
  content: "✎";
  background: var(--blog-subtle);
}

.blog-content .is-style-big_icon_good > p:first-child,
.blog-content .is-style-big_icon_point > p:first-child,
.blog-content .is-style-big_icon_memo > p:first-child {
  font-weight: 700;
}

.blog-content .is-style-big_icon_good > * + *,
.blog-content .is-style-big_icon_point > * + *,
.blog-content .is-style-big_icon_memo > * + * {
  margin-top: .8em;
}

.blog-content .is-style-border_sg {
  display: block;
  padding: 20px 24px;
  border: 2px solid var(--blog-border);
  border-radius: 10px;
}

.blog-content .is-style-border_sg > * + * {
  margin-top: .6em;
}

.blog-content .is-style-check_list,
.blog-content .is-style-check_icon {
  list-style: none;
  padding-left: 0;
}

.blog-content .is-style-check_list li,
.blog-content .is-style-check_icon li {
  position: relative;
  padding-left: 1.8em;
}

.blog-content .is-style-check_list li::before,
.blog-content .is-style-check_icon li::before {
  content: "";
  position: absolute;
  left: .2em;
  top: .55em;
  width: .9em;
  height: .5em;
  border-left: 3px solid var(--blog-accent);
  border-bottom: 3px solid var(--blog-accent);
  transform: rotate(-45deg);
}

.blog-content .is-style-btn_normal,
.blog-content .is-style-btn_solid {
  margin-top: 1.6em;
  text-align: center;
}

.blog-content .is-style-btn_normal a,
.blog-content .is-style-btn_solid a {
  display: inline-block;
  min-width: min(100%, 320px);
  padding: 14px 32px;
  border-radius: 999px;
  background: var(--blog-accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(40, 132, 157, .25);
  transition: transform .2s, box-shadow .2s;
}

.blog-content .is-style-btn_normal a:hover,
.blog-content .is-style-btn_solid a:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(40, 132, 157, .3);
}

/* ---------- 記事下 ---------- */

.blog-cta {
  margin: 56px 0 0;
  padding: 32px;
  border-radius: 14px;
  background: var(--blog-pale);
  text-align: center;
}

.blog-cta__title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.5;
}

.blog-cta__text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
}

.blog-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.blog-cta__button {
  display: inline-block;
  padding: 12px 26px;
  border: 2px solid var(--blog-accent);
  border-radius: 999px;
  background: #ffffff;
  color: var(--blog-accent);
  font-weight: 700;
  text-decoration: none;
}

.blog-cta__button--primary {
  background: var(--blog-accent);
  color: #ffffff !important;
}

.blog-cta__service {
  margin-top: 16px;
  font-size: 13px;
}

.blog-cta__service a {
  color: var(--blog-accent);
}

.blog-pn {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 48px 0 80px;
}

.blog-pn a {
  display: block;
  height: 100%;
  padding: 16px 18px;
  border: 1px solid var(--blog-border);
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
}

.blog-pn a:hover {
  border-color: var(--blog-accent);
}

.blog-pn span {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--blog-subtle);
}

.blog-pn__next {
  text-align: right;
}

.blog-related {
  padding: 64px 0 100px;
  background: var(--blog-pale);
}

.blog-related__title {
  margin-bottom: 32px;
  font-size: 24px;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .blog-card,
  .blog-content .is-style-btn_normal a {
    transition: none;
  }
  .blog-card:hover {
    transform: none;
  }
}

@media screen and (max-width: 1050px) {
  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media screen and (max-width: 770px) {
  .blog-archive {
    padding: 36px 0 72px;
  }
  .blog-cats ul {
    justify-content: flex-start;
    margin-bottom: 32px;
  }
  .blog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .blog-single__head {
    padding: 90px 0 32px;
  }
  .blog-single__title {
    font-size: 22px;
  }
  .blog-content {
    font-size: 15px;
  }
  .blog-content h2 {
    font-size: 19px;
    padding: 12px 14px;
  }
  .blog-content h3 {
    font-size: 17px;
  }
  .blog-content .is-style-big_icon_good,
  .blog-content .is-style-big_icon_point,
  .blog-content .is-style-big_icon_memo {
    padding: 64px 18px 18px;
  }
  .blog-content .is-style-big_icon_good::before,
  .blog-content .is-style-big_icon_point::before,
  .blog-content .is-style-big_icon_memo::before {
    top: 16px;
    left: 18px;
  }
  .blog-cta {
    padding: 24px 18px;
  }
  .blog-pn {
    grid-template-columns: 1fr;
  }
  .blog-pn__next {
    text-align: left;
  }
}

/* ---------- 記事内のリンクカード [post_link] ---------- */

.blog-content .blog-linkcard {
  display: block;
  margin: 1.2em 0;
}

.blog-content .blog-linkcard__link {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--blog-border);
  border-radius: 10px;
  background: #ffffff;
  text-decoration: none;
  transition: border-color .2s, box-shadow .2s;
}

.blog-content .blog-linkcard__link:hover {
  border-color: var(--blog-accent);
  box-shadow: 0 6px 18px rgba(40, 132, 157, .1);
}

.blog-content .blog-linkcard__thumb {
  flex: 0 0 160px;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 6px;
  background: var(--blog-pale);
}

.blog-content .blog-linkcard__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-content .blog-linkcard__body {
  display: block;
  min-width: 0;
}

.blog-content .blog-linkcard__caption {
  display: inline-block;
  margin-bottom: 4px;
  padding: 1px 8px;
  border-radius: 4px;
  background: var(--blog-pale);
  color: var(--blog-accent);
  font-size: 11px;
  font-weight: 700;
}

.blog-content .blog-linkcard__title {
  display: block;
  color: var(--blog-text);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
}

.blog-content .blog-linkcard__excerpt {
  display: block;
  margin-top: 4px;
  color: var(--blog-subtle);
  font-size: 12px;
  line-height: 1.6;
}

@media screen and (max-width: 770px) {
  .blog-content .blog-linkcard__thumb {
    flex-basis: 96px;
  }
  .blog-content .blog-linkcard__excerpt {
    display: none;
  }
}

/* ---------- 追従バナー（無料相談LPへの案内。トップページの追従バナーと同じ内容・見た目） ---------- */

.blog-float {
  position: fixed;
  right: clamp(16px, 1.67vw, 24px);
  bottom: clamp(16px, 1.67vw, 24px);
  /* ヘッダー（z=100）・SPドロワー（z=99）より下 */
  z-index: 90;
  width: clamp(240px, 21.25vw, 306px);
  box-sizing: border-box;
  padding: clamp(18px, 1.81vw, 26px) clamp(14px, 1.32vw, 19px);
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
  font-family: var(--blog-font);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(7px, .76vw, 11px);
  animation: blogFloatIn .4s ease both;
}

.blog-float[hidden] {
  display: none;
}

@keyframes blogFloatIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

.blog-float * {
  color: inherit;
}

.blog-float__close {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  padding: 6px;
  border: 0;
  background: transparent;
  color: #aaaaaa;
  cursor: pointer;
}

.blog-float__close:hover,
.blog-float__close:focus-visible {
  color: #333333;
}

.blog-float__title {
  font-size: clamp(14px, 1.18vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: #333333;
}

.blog-float__text {
  font-size: clamp(11px, .9vw, 13px);
  line-height: 1.7;
  color: #666666;
  text-align: left;
}

.blog-float__features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  list-style: none;
}

.blog-float__features li {
  padding: 3px 10px;
  border: 1px solid #d9e6e7;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  color: #469295;
}

.blog-float__btn {
  display: block;
  width: 100%;
  padding: 12px 10px;
  background: #469295;
  color: #ffffff !important;
  font-size: clamp(13px, 1.04vw, 15px);
  font-weight: 700;
  text-decoration: none;
  transition: opacity .2s;
}

.blog-float__btn:hover {
  opacity: .85;
}

@media (prefers-reduced-motion: reduce) {
  .blog-float {
    animation: none;
  }
}

@media screen and (max-width: 770px) {
  /* SP：画面下のバー。本文を隠しすぎないよう、見出しとボタンだけにする */
  .blog-float {
    left: 12px;
    right: 12px;
    bottom: 12px;
    width: auto;
    padding: 12px 40px 12px 14px;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    text-align: left;
  }
  .blog-float__title {
    flex: 1;
    font-size: 12px;
  }
  .blog-float__title br,
  .blog-float__text,
  .blog-float__features {
    display: none;
  }
  .blog-float__btn {
    width: auto;
    flex: 0 0 auto;
    padding: 10px 12px;
    font-size: 12px;
  }
  .blog-float__close {
    top: 50%;
    transform: translateY(-50%);
  }
}