/* ============================================
   CSS カスタムプロパティ
   ============================================ */
:root {
  /* ブランドカラー */
  --color-blue:      #12A9D8;
  --color-blue-dark: #0E8CB5;
  --color-purple:    #5B5EA6;
  --color-purple-dark: #4A4D8A;

  /* グラデーション */
  --gradient-main: linear-gradient(135deg, var(--color-blue) 0%, var(--color-purple) 100%);

  /* テキスト */
  --color-text:      #2C2C2C;
  --color-text-sub:  #666666;
  --color-text-light: #999999;
  --color-logo-gray: #808285;

  /* 背景 */
  --color-white:     #FFFFFF;
  --color-bg-light:  #F5F7FA;
  --color-bg-gray:   #EEEFF2;

  /* ボーダー */
  --color-border:    #DDDDDD;

  /* レイアウト */
  --container-max:   1200px;
  --container-pad:   clamp(16px, 4vw, 40px);
  --header-height:   120px;

  /* スペーシング */
  --section-pad:     clamp(60px, 8vw, 100px);

  /* タイポグラフィ */
  --font-weight-regular: 400;
  --font-weight-medium:  500;
  --font-weight-bold:    700;

  /* トランジション */
  --transition: 0.3s ease;

  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
}


/* ============================================
   コンテナ
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

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


/* ============================================
   セクション共通
   ============================================ */
.section {
  padding-block: var(--section-pad);
}

.section--gray {
  background-color: var(--color-bg-light);
}

.section-head {
  text-align: center;
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-label {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2.4rem, 3.5vw, 3.6rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.4;
  color: var(--color-text);
}

.section-title--white {
  color: var(--color-white);
}

.section-desc {
  font-size: clamp(1.4rem, 1.8vw, 1.6rem);
  color: var(--color-text-sub);
  margin-top: 16px;
  max-width: 600px;
  margin-inline: auto;
}


/* ============================================
   ボタン
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  border-radius: 50px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-main);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(18, 169, 216, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(18, 169, 216, 0.45);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.7);
}

.btn--outline:hover {
  background: rgba(255,255,255,0.15);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-blue);
  border: 2px solid var(--color-blue);
}

.btn--outline-dark:hover {
  background: var(--color-blue);
  color: var(--color-white);
}

.btn--lg {
  padding: 18px 48px;
  font-size: 1.7rem;
  min-width: 260px;
}

/* ボタン内矢印 */
.btn__arrow {
  display: inline-block;
  width: 20px;
  height: 20px;
  position: relative;
}

.btn__arrow::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: 5px;
}


/* ============================================
   ヘッダー
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--color-white);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.header.is-transparent {
  background: transparent;
  box-shadow: none;
}

.header.is-transparent .header__logo-default {
  filter: invert(1);
}

.header__logo-color {
  display: none;
}

.header:not(.is-transparent) .header__logo-default {
  display: none;
}

.header:not(.is-transparent) .header__logo-color {
  display: block;
}

.header .container {
  height: 100%;
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header__logo {
  flex-shrink: 0;
}

.header__logo img {
  height: 64px;
  width: auto;
  max-width: none;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header__nav-link {
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding-block: 4px;
  position: relative;
  transition: color var(--transition);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-purple);
  transition: width var(--transition);
}

.header__nav-link:hover {
  color: var(--color-blue);
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__cta {
  flex-shrink: 0;
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 6px;
}

.hamburger__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.is-open .hamburger__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.is-open .hamburger__bar:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open .hamburger__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}


/* ============================================
   スマホナビ
   ============================================ */
.sp-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100dvh - var(--header-height));
  background: var(--color-white);
  z-index: 999;
  padding: 32px var(--container-pad);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition);
}

.sp-nav.is-open {
  transform: translateX(0);
}

.sp-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.sp-nav__item {
  border-bottom: 1px solid var(--color-border);
}

.sp-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  font-size: 1.6rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.sp-nav__link::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--color-text-sub);
  border-right: 2px solid var(--color-text-sub);
  transform: rotate(45deg);
}

.sp-nav__cta {
  margin-top: 32px;
}

.sp-nav__cta .btn {
  width: 100%;
}


/* ============================================
   フッター
   ============================================ */
.footer {
  position: relative;
  overflow: hidden;
  background: #1E2233;
  color: rgba(255,255,255,0.75);
  padding-top: clamp(48px, 6vw, 72px);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 58%;
  height: 100%;
  background: var(--gradient-main);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

.footer .container {
  position: relative;
  z-index: 1;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer__brand {}

.footer__logo img {
  height: 64px;
  width: auto;
  filter: invert(1);
  margin-bottom: 16px;
}

.footer__tagline {
  font-size: 1.6rem;
  line-height: 1.7;
}

.footer__address {
  font-style: normal;
  font-size: 1.4rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
}

.footer__logo-group {
  display: inline-grid;
}

.footer__since {
  font-size: 0.85rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.2em;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.footer__nav-title {
  font-size: 1.6rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__nav-link {
  font-size: 1.6rem;
  color: rgba(255,255,255,0.6);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.footer__nav-link:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-purple);
}

.footer__nav-link--main {
  font-weight: var(--font-weight-bold);
  color: rgba(255,255,255,0.85);
}

.footer__nav-list--sub .footer__nav-link {
  padding-left: 24px;
  position: relative;
}

.footer__nav-list--sub .footer__nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: 20px;
  text-align: center;
}

.footer__copy {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.4);
}


/* ============================================
   ページ共通ヒーロー（サブページ用）
   ============================================ */
.page-hero {
  padding-top: calc(var(--header-height) + clamp(40px, 5vw, 60px));
  padding-bottom: clamp(40px, 5vw, 60px);
  background: var(--color-bg-light);
}

.page-hero__label {
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.page-hero__title {
  font-size: clamp(2.8rem, 4vw, 4.2rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
}

.page-hero__desc {
  font-size: 1.5rem;
  color: var(--color-text-sub);
  margin-top: 16px;
  max-width: 600px;
}


/* ============================================
   アクセシビリティ
   ============================================ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}


/* ============================================
   パンくず
   ============================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.2rem;
  color: var(--color-text-sub);
}

.breadcrumb__item:not(:last-child)::after {
  content: '/';
  color: var(--color-text-light);
}

.breadcrumb__link {
  color: var(--color-blue);
}

.breadcrumb__link:hover {
  text-decoration: underline;
}


/* ============================================
   スクロールアニメーション
   ============================================ */
[data-anim] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-anim].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-anim][data-delay="1"] { transition-delay: 0.1s; }
[data-anim][data-delay="2"] { transition-delay: 0.2s; }
[data-anim][data-delay="3"] { transition-delay: 0.3s; }
[data-anim][data-delay="4"] { transition-delay: 0.4s; }


/* ============================================
   サブページ共通ヒーロー
   ============================================ */
.page-hero--sub {
  padding: 0;
  background: transparent;
}

.page-hero__upper {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-height) + clamp(40px, 5vw, 60px));
  padding-bottom: clamp(48px, 6vw, 72px);
  background: var(--color-bg-light);
}

.page-hero__deco {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.page-hero__ring {
  position: absolute;
  border-radius: 50%;
  border: 5px solid;
}

.page-hero__ring--1 {
  width: 340px;
  height: 340px;
  top: -90px;
  right: -90px;
  border-color: rgba(18, 169, 216, 0.32);
}

.page-hero__ring--2 {
  width: 230px;
  height: 230px;
  top: 10px;
  right: 60px;
  border-color: rgba(91, 94, 166, 0.26);
}

.page-hero__ring--3 {
  width: 130px;
  height: 130px;
  top: 50px;
  right: -10px;
  border-color: rgba(18, 169, 216, 0.18);
}

.page-hero__upper .container {
  position: relative;
  z-index: 1;
}

.page-hero__intro {
  background: var(--gradient-main);
  padding-top: calc(clamp(36px, 5vw, 64px) + clamp(48px, 10vw, 130px));
  padding-bottom: clamp(36px, 5vw, 64px);
  clip-path: polygon(0 clamp(48px, 10vw, 130px), 100% 0, 100% 100%, 0 100%);
}

.hero-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.hero-intro__body {
  flex: 1;
  min-width: 0;
}

.hero-intro__title {
  font-size: clamp(1.9rem, 2.3vw, 2.4rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.hero-intro__desc {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.75;
  max-width: 560px;
  overflow-wrap: break-word;
  word-break: auto-phrase;
}

.hero-intro__btn {
  flex-shrink: 0;
  padding: 16px 36px;
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  border-radius: 50px;
  background: var(--color-white);
  color: var(--color-blue-dark);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: transform var(--transition), box-shadow var(--transition);
}

.hero-intro__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}


/* ============================================
   CTAバナー
   ============================================ */
.cta-banner {
  padding-block: var(--section-pad);
  background: var(--gradient-main);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  border: 80px solid rgba(255,255,255,0.05);
  border-radius: 50%;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: 5%;
  width: 300px;
  height: 300px;
  border: 50px solid rgba(255,255,255,0.04);
  border-radius: 50%;
}

.cta-banner__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-banner__title {
  font-size: clamp(2.4rem, 3.5vw, 3.4rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 12px;
}

.cta-banner__sub {
  font-size: clamp(1.4rem, 1.8vw, 1.6rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
}

.cta-banner__actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-banner__actions .btn--outline {
  border-color: rgba(255,255,255,0.65);
  color: rgba(255,255,255,0.9);
}

.cta-banner__actions .btn--outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.95);
  color: var(--color-white);
}

.btn--cta-white {
  background: var(--color-white);
  color: var(--color-blue-dark);
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}

.btn--cta-white:hover {
  background: var(--gradient-main);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(18,169,216,0.45);
}


/* ============================================
   投稿リスト（お知らせ・ブログ共通）
   ============================================ */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
  transition: opacity var(--transition);
}

.post-item:hover {
  opacity: 0.75;
}

.post-item:first-child {
  padding-top: 0;
}

.post-item__date {
  font-size: 1.2rem;
  color: var(--color-text-light);
  white-space: nowrap;
  padding-top: 2px;
}

.post-item__cat {
  grid-column: 1;
  grid-row: 2;
  font-size: 1.1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-blue);
  padding: 2px 8px;
  background: rgba(18,169,216,0.1);
  border-radius: 2px;
  white-space: nowrap;
  align-self: start;
}

.post-item__title {
  grid-column: 2;
  grid-row: 1 / 3;
  font-size: 1.6rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-text);
}

.post-item__title:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}


/* ============================================
   レスポンシブ
   ============================================ */
@media (max-width: 768px) {
  .header__nav,
  .header__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .sp-nav {
    display: block;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer::before {
    width: 100%;
    height: 100%;
    clip-path: polygon(0 0, 100% 0, 100% 38%, 0 58%);
  }

  .page-hero__ring--1 { width: 200px; height: 200px; top: -50px; right: -50px; }
  .page-hero__ring--2 { width: 130px; height: 130px; top: 0; right: 20px; }
  .page-hero__ring--3 { display: none; }

  .hero-intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .hero-intro__btn {
    width: 100%;
    justify-content: center;
  }

  .cta-banner__actions {
    flex-direction: column;
  }

  .cta-banner__actions .btn {
    width: 100%;
    min-width: unset;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 72px;
  }
  .header__logo img {
    height: 48px;
  }
}

@media (max-width: 480px) {
  :root {
    --header-height: 64px;
  }
  .header__logo img {
    height: 40px;
  }
}


/* ============================================
   コンテンツレイアウト（お知らせ・ブログ共通）
   ============================================ */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 48px;
  align-items: start;
}

.content-main {
  min-width: 0;
}

.content-side {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}


/* ============================================
   サイドバーウィジェット（共通）
   ============================================ */
.widget {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.widget__title {
  background: var(--gradient-main);
  color: #ffffff;
  font-size: 1.3rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.05em;
  padding: 11px 20px;
  margin-bottom: 0;
  border-bottom: none;
}

.widget__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 20px 16px;
}

.widget__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 4px;
  font-size: 1.4rem;
  color: var(--color-text);
  border-bottom: 1px solid #EEEEEE;
  transition: color var(--transition);
}

.widget__link::after {
  content: '›';
  font-size: 1.8rem;
  line-height: 1;
  color: var(--color-blue);
  font-weight: var(--font-weight-regular);
  flex-shrink: 0;
}

.widget__link:hover {
  color: var(--color-blue);
}

/* カテゴリータグ（ブログ専用：多カテゴリー対応） */
.cat-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 20px;
}

.cat-tag {
  display: inline-block;
  padding: 4px 6px;
  font-size: 1.2rem;
  color: var(--color-text);
  background: var(--color-white);
  border-radius: 50px;
  border: 1.5px solid #BBBBBB;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.cat-tag:hover {
  color: var(--color-blue);
  background: rgba(18,169,216,0.06);
  border-color: var(--color-blue);
}

/* アーカイブアコーディオン */
.widget__archive {
  display: flex;
  flex-direction: column;
  padding: 8px 20px 16px;
}

.archive-year {
  border-bottom: 1px solid #EEEEEE;
}

.archive-year__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px;
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color var(--transition);
}

.archive-year__label::-webkit-details-marker { display: none; }
.archive-year__label::marker { content: none; }

.archive-year__label::after {
  content: '+';
  font-size: 1.8rem;
  font-weight: var(--font-weight-regular);
  color: var(--color-text-light);
  line-height: 1;
}

details[open] > .archive-year__label::after {
  content: '−';
}

.archive-year__label:hover {
  color: var(--color-blue);
}

.archive-year__months {
  display: flex;
  flex-direction: column;
  padding: 4px 0 8px 12px;
}

.archive-year__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 4px;
  font-size: 1.3rem;
  color: var(--color-text);
  transition: color var(--transition);
}

.archive-year__link::after {
  content: '›';
  font-size: 1.8rem;
  line-height: 1;
  color: var(--color-blue);
  font-weight: var(--font-weight-regular);
  flex-shrink: 0;
}

.archive-year__link:hover {
  color: var(--color-blue);
}


/* ============================================
   ページネーション（共通）
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.pagination__item:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.pagination__item--current {
  background: var(--gradient-main);
  color: var(--color-white);
  border-color: transparent;
  pointer-events: none;
}

/* WP paginate_links 出力クラス */
.pagination a.page-numbers,
.pagination span.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 6px;
  border-radius: 6px;
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.pagination a.page-numbers:hover {
  background: var(--color-bg-light);
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.pagination .page-numbers.current {
  background: var(--gradient-main);
  color: var(--color-white);
  border-color: transparent;
  pointer-events: none;
}

.pagination .page-numbers.dots {
  border: none;
  min-width: auto;
}


/* ============================================
   記事ヒーロー（詳細ページ共通）
   ============================================ */
.entry-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.entry-hero__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.5;
  margin-bottom: 24px;
}


/* ============================================
   記事詳細（共通）
   ============================================ */
.entry-page {
  padding-top: clamp(40px, 6vw, 72px);
}

.entry__header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.entry__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.entry__title {
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.5;
  color: var(--color-text);
}

.entry__eyecatch {
  margin-bottom: 40px;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 866 / 380;
}

.entry__eyecatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 65%;
  display: block;
}

.entry__body {
  font-size: 1.6rem;
  line-height: 1.9;
  color: var(--color-text);
}

.entry__body p + p {
  margin-top: 1.5em;
}

.entry__body h2 {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  margin-top: 2.5em;
  margin-bottom: 0.8em;
  padding-left: 12px;
  border-left: 4px solid var(--color-blue);
}

.entry__body h3 {
  font-size: 1.8rem;
  font-weight: var(--font-weight-bold);
  margin-top: 2em;
  margin-bottom: 0.6em;
}

.entry__body ul,
.entry__body ol {
  margin-top: 1em;
  margin-bottom: 1em;
  padding-left: 1.8em;
}

.entry__body ul li {
  list-style: disc;
  margin-bottom: 0.4em;
}

.entry__body ol li {
  list-style: decimal;
  margin-bottom: 0.4em;
}

/* 前後ナビ */
.entry-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.entry-nav__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: var(--color-bg-light);
  border-radius: 6px;
  border-top: 3px solid transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.entry-nav__item:hover {
  background: var(--color-bg-gray);
  box-shadow: var(--shadow-sm);
}

.entry-nav__item--prev {
  align-items: flex-start;
  border-top-color: var(--color-blue);
}

.entry-nav__item--next {
  align-items: flex-end;
  text-align: right;
  border-top-color: var(--color-purple);
}

.entry-nav__label {
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-blue);
}

.entry-nav__item--prev .entry-nav__label::before {
  content: '← ';
}

.entry-nav__item--next .entry-nav__label::after {
  content: ' →';
}

.entry-nav__item--next .entry-nav__label {
  color: var(--color-purple);
}

.entry-nav__title {
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  line-height: 1.5;
}

.entry__back {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}


/* ============================================
   レコメンド記事（共通）
   ============================================ */
.recommend-posts {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.recommend-posts__title {
  font-size: 1.6rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--color-blue);
  display: inline-block;
}

.recommend-posts__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  list-style: none;
}

.recommend-card__link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: var(--color-bg-light);
  border-radius: 8px;
  height: 100%;
  transition: background var(--transition), box-shadow var(--transition);
}

.recommend-card__link:hover {
  background: var(--color-bg-gray);
  box-shadow: var(--shadow-sm);
}

.recommend-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.recommend-card__date {
  font-size: 1.2rem;
  color: var(--color-text-light);
}

.recommend-card__title {
  font-size: 1.4rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  line-height: 1.6;
}


/* ============================================
   レスポンシブ（共通追加分）
   ============================================ */
@media (max-width: 768px) {
  .content-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .content-side {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
  }

  .widget {
    flex: 1;
    min-width: 200px;
  }

  .recommend-posts__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .entry-nav {
    grid-template-columns: 1fr;
  }

  .entry-nav__item--next {
    align-items: flex-start;
    text-align: left;
  }

  .recommend-posts__list {
    grid-template-columns: 1fr;
  }
}