/* ================================================================
   blog_style.css  — Accele Biz Blog スタイルシート
   トップ画面・問い合わせ画面のデザイントークンを継承。
   ================================================================ */

/* ----------------------------------------------------------------
   Design Tokens（top_page_mock.html と同一）
   ---------------------------------------------------------------- */
:root {
  --color-primary: #1a3a5c;
  --color-accent: #1887c5;
  --color-accent-dk: #1470a8;
  --color-accent-lt: #e8f4fb;
  --color-light-bg: #f5f7fa;
  --color-text: #1e293b;
  --color-text-mute: #64748b;
  --color-white: #ffffff;
  --color-border: rgba(26, 58, 92, 0.1);
  --font-base: 'Noto Sans JP', 'Inter', sans-serif;
  --transition: 0.25s ease;
  --radius: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
  font-size: 16px;
}

/* Navbar */
.navbar-custom {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
}

.navbar-custom.scrolled {
  box-shadow: 0 2px 16px rgba(26, 58, 92, 0.10);
}

.navbar-logo {
  height: 42px;
  width: auto;
}

.navbar-custom .nav-link {
  color: var(--color-primary) !important;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  transition: color var(--transition);
}

.navbar-custom .nav-link:hover {
  color: var(--color-accent) !important;
}

.navbar-custom .btn-cta-nav {
  background: var(--color-accent);
  color: var(--color-white) !important;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}

.navbar-custom .btn-cta-nav:hover {
  background: var(--color-accent-dk);
  transform: translateY(-1px);
}

.navbar-toggler {
  border-color: var(--color-border);
}

/* ページヘッダー */
.blog-page-header {
  background: linear-gradient(140deg, #07192e 0%, #0f2744 40%, #1470a8 100%);
  padding: 7rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.blog-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(24, 135, 197, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 135, 197, 0.12) 1px, transparent 1px);
  background-size: 55px 55px;
}

.blog-page-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 55%, rgba(24, 135, 197, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(24, 135, 197, 0.15) 0%, transparent 40%),
    linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.35) 100%);
}

.blog-page-header-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.blog-page-header-en {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
}

.blog-page-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.blog-page-header .header-badge {
  display: inline-block;
  background: rgba(24, 135, 197, 0.3);
  border: 1px solid rgba(24, 135, 197, 0.5);
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.blog-page-header .header-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 560px;
  margin: 0.5rem auto 0;
  line-height: 1.8;
}

/* 2カラムレイアウト */
.blog-layout-wrap {
  padding: 3rem 0 5rem;
  background: var(--color-light-bg);
}

/* 記事一覧カード */
.blog-article-card {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  margin-bottom: 1.75rem;
}

.blog-article-card:not(.no-hover):hover {
  box-shadow: 0 12px 36px rgba(24, 135, 197, 0.14);
  transform: translateY(-4px);
  border-color: rgba(24, 135, 197, 0.2);
}

@media (min-width: 576px) {
  .blog-article-card.card-horizontal {
    flex-direction: row;
  }

  .blog-article-card.card-horizontal .card-thumb {
    width: 220px;
    min-width: 220px;
    flex-shrink: 0;
  }
}

.blog-article-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 170px;
  display: block;
}

.blog-article-card .card-body-custom {
  padding: 1.5rem 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.65rem;
}

.card-date {
  font-size: 0.78rem;
  color: var(--color-text-mute);
}

.card-category-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--color-accent-lt);
  color: var(--color-accent-dk);
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
}

.card-series-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  background: #fff4e8;
  color: #c67c00;
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
}

.card-title-link {
  text-decoration: none;
}

.card-title-link h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.55;
  margin-bottom: 0.6rem;
  transition: color var(--transition);
}

.card-title-link:hover h2 {
  color: var(--color-accent);
}

.card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-mute);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 1rem;
}

.card-read-more {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  align-self: flex-start;
  transition: color var(--transition);
}

.card-read-more:hover {
  color: var(--color-accent-dk);
  text-decoration: underline;
}

/* 検索ボックス */
.blog-search-box {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}

.search-input-wrap {
  display: flex;
}

.search-input-wrap input {
  border: 1.5px solid var(--color-border);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-family: var(--font-base);
  color: var(--color-text);
  flex: 1;
  outline: none;
  transition: border-color var(--transition);
}

.search-input-wrap input:focus {
  border-color: var(--color-accent);
}

.search-input-wrap button {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0 1rem;
  cursor: pointer;
  transition: background var(--transition);
  font-size: 1rem;
}

.search-input-wrap button:hover {
  background: var(--color-accent-dk);
}

/* ページネーション */
.blog-pagination {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  padding-top: 1rem;
  flex-wrap: wrap;
}

.page-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-primary);
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all var(--transition);
}

.page-btn:hover,
.page-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.page-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* サイドバー */
.sidebar-card {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-section-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.35rem;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.sidebar-divider {
  width: 32px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: 1.25rem;
}

.sidebar-profile-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-accent-lt);
  box-shadow: 0 4px 16px rgba(24, 135, 197, 0.2);
}

.sidebar-profile-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0.75rem 0 0.2rem;
}

.sidebar-profile-role {
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.sidebar-profile-bio {
  font-size: 0.825rem;
  color: var(--color-text-mute);
  line-height: 1.85;
  margin-bottom: 0.85rem;
}

.sidebar-profile-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

.sidebar-profile-link:hover {
  color: var(--color-accent-dk);
  text-decoration: underline;
}

.sidebar-cta-btn {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--color-accent);
  color: var(--color-white) !important;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.75rem 1rem;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  letter-spacing: 0.02em;
}

.sidebar-cta-btn:hover {
  background: var(--color-accent-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(24, 135, 197, 0.3);
}

.sidebar-article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-article-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: flex-start;
}

.sidebar-article-item:last-child {
  border-bottom: none;
}

.sidebar-article-thumb {
  width: 60px;
  height: 60px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-article-date {
  font-size: 0.7rem;
  color: var(--color-text-mute);
}

.sidebar-article-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--transition);
  display: block;
}

.sidebar-article-title:hover {
  color: var(--color-accent);
}

.sidebar-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.sidebar-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1.5px solid var(--color-border);
  color: var(--color-text-mute);
  border-radius: 20px;
  padding: 0.25rem 0.75rem;
  text-decoration: none;
  transition: all var(--transition);
}

.sidebar-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-lt);
}

/* 記事詳細 */
.article-header-area {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  margin-bottom: 1.75rem;
}

.article-hero-img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  display: block;
}

.article-header-body {
  padding: 2rem 2.25rem 1.5rem;
}

.article-cat-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--color-accent-lt);
  color: var(--color-accent-dk);
  border-radius: 4px;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.85rem;
}

.article-series-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  background: #fff4e8;
  color: #c67c00;
  border-radius: 4px;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.85rem;
  margin-left: 0.35rem;
}

.article-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.45;
  margin-bottom: 1rem;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.article-meta-item {
  font-size: 0.8rem;
  color: var(--color-text-mute);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.article-meta-item i {
  color: var(--color-accent);
}

/* 目次 */
.article-toc {
  background: var(--color-accent-lt);
  border: 1px solid rgba(24, 135, 197, 0.2);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.25rem;
}

.article-toc-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent-dk);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.article-toc ol {
  margin: 0;
  padding-left: 1.25rem;
}

.article-toc li {
  font-size: 0.875rem;
  line-height: 1.7;
  padding: 0.1rem 0;
}

.article-toc li a {
  color: var(--color-accent-dk);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.article-toc li a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.article-toc ol ol {
  margin-top: 0.25rem;
  padding-left: 1rem;
}

.article-toc ol ol li a {
  font-weight: 400;
}

/* 記事本文 */
.article-body-area {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 2.25rem 2.5rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 575px) {
  .article-body-area {
    padding: 1.5rem 1.25rem;
  }

  .article-header-body {
    padding: 1.25rem;
  }

  .article-hero-img {
    height: 200px;
  }
}

.article-content {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
}

.article-content h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 0.6rem 0 0.6rem 1rem;
  border-left: 4px solid var(--color-accent);
  margin: 2.5rem 0 1.25rem;
  background: var(--color-light-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.article-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 2rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-accent-lt);
}

.article-content h4 {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 1.5rem 0 0.6rem;
}

.article-content p {
  margin-bottom: 1.4rem;
}

.article-content ul,
.article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
}

.article-content li {
  margin-bottom: 0.4rem;
  line-height: 1.85;
}

.article-content a {
  color: var(--color-accent);
  text-decoration: underline;
  transition: color var(--transition);
}

.article-content a:hover {
  color: var(--color-accent-dk);
}

.article-content strong {
  color: var(--color-primary);
  font-weight: 700;
}

.article-content code {
  background: #f0f4f8;
  color: #c0392b;
  border-radius: 4px;
  padding: 0.1em 0.45em;
  font-size: 0.88em;
}

.article-content pre {
  background: #1e293b;
  color: #e2e8f0;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.7;
}

.article-content pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-accent-lt);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--color-text-mute);
  font-style: italic;
}

.article-content img {
  max-width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(26, 58, 92, 0.1);
  margin: 0.5rem 0 1.5rem;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.article-content th {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.65rem 1rem;
  text-align: left;
  font-weight: 600;
}

.article-content td {
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 1rem;
}

.article-content tr:nth-child(even) td {
  background: var(--color-light-bg);
}

.article-content .video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
}

.article-content .video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* 記事末尾 CTA */
.article-cta-banner {
  background: linear-gradient(140deg, #07192e 0%, #0f2744 50%, #1470a8 100%);
  border-radius: 16px;
  padding: 2.5rem 2.25rem;
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
}

.article-cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(24, 135, 197, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 135, 197, 0.1) 1px, transparent 1px);
  background-size: 40px 40px;
}

.article-cta-inner {
  position: relative;
  z-index: 2;
}

.article-cta-badge {
  display: inline-block;
  background: rgba(24, 135, 197, 0.35);
  border: 1px solid rgba(24, 135, 197, 0.55);
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.85rem;
}

.article-cta-title {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  line-height: 1.45;
}

.article-cta-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.btn-cta-white {
  background: var(--color-white);
  color: var(--color-accent-dk);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.85rem 2.25rem;
  letter-spacing: 0.02em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-cta-white:hover {
  background: var(--color-accent-lt);
  color: var(--color-accent-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* コメントエリア */
.comment-section {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 2rem 2.25rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 575px) {
  .comment-section {
    padding: 1.5rem 1.25rem;
  }
}

.comment-section-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
}

.comment-section-divider {
  width: 36px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.comment-step-nav {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 0;
  margin-bottom: 1.75rem;
  max-width: 520px;
}

.cmt-step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.cmt-step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 16px;
  left: calc(50% + 16px);
  width: calc(100% - 32px);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.cmt-step-item.done:not(:last-child)::after {
  background: var(--color-accent);
}

.cmt-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-mute);
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

.cmt-step-item.active .cmt-circle {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 0 0 3px var(--color-accent-lt);
}

.cmt-step-item.done .cmt-circle {
  background: var(--color-accent-dk);
  border-color: var(--color-accent-dk);
  color: var(--color-white);
}

.cmt-label {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--color-text-mute);
  margin-top: 0.35rem;
  text-align: center;
  line-height: 1.3;
}

.cmt-step-item.active .cmt-label {
  color: var(--color-accent);
  font-weight: 700;
}

.cmt-step-item.done .cmt-label {
  color: var(--color-accent-dk);
}

.comment-form-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
  display: block;
}

.comment-form-label .badge-required {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  background: #dc3545;
  color: #fff;
  border-radius: 3px;
  padding: 0.1rem 0.45rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.comment-form-control {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  font-family: var(--font-base);
  color: var(--color-text);
  background: #fff;
  width: 100%;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 1.1rem;
}

.comment-form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-lt);
}

.comment-form-control::placeholder {
  color: #b0bec5;
}

.comment-hint {
  font-size: 0.8rem;
  color: var(--color-text-mute);
  margin-bottom: 1.25rem;
  background: var(--color-light-bg);
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  border-left: 3px solid var(--color-accent);
}

.btn-comment-submit {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.75rem 1.75rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-comment-submit:hover {
  background: var(--color-accent-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(24, 135, 197, 0.3);
}

.comment-list {
  margin-top: 1.5rem;
}

.comment-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.comment-item:last-child {
  border-bottom: none;
}

.comment-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-accent);
  flex-shrink: 0;
  font-weight: 700;
}

.comment-avatar.admin-avatar {
  background: var(--color-primary);
  color: var(--color-white);
}

.comment-author {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.1rem;
}

.comment-author .admin-badge {
  display: inline-block;
  font-size: 0.62rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 3px;
  padding: 0.05rem 0.4rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.comment-date {
  font-size: 0.72rem;
  color: var(--color-text-mute);
  margin-bottom: 0.5rem;
}

.comment-text {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-text);
  margin: 0;
}

.comment-profile-photo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-accent-lt);
  box-shadow: 0 4px 16px rgba(24, 135, 197, 0.2);
}

/* シリーズカード */
.series-grid-card {
  background: var(--color-white);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.series-grid-card:hover {
  box-shadow: 0 16px 48px rgba(24, 135, 197, 0.16);
  transform: translateY(-6px);
  border-color: rgba(24, 135, 197, 0.22);
}

.series-cover-wrap {
  position: relative;
  overflow: hidden;
}

.series-cover-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.series-grid-card:hover .series-cover-img {
  transform: scale(1.04);
}

.series-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 58, 92, 0.55) 0%, transparent 55%);
}

.series-article-count {
  position: absolute;
  bottom: 0.75rem;
  right: 0.85rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 20px;
  padding: 0.25rem 0.7rem;
  letter-spacing: 0.03em;
}

.series-card-body {
  padding: 1.35rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.series-card-title {
  font-size: 1.0rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
  line-height: 1.5;
}

.series-card-desc {
  font-size: 0.845rem;
  color: var(--color-text-mute);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 1rem;
}

.series-card-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color var(--transition);
  align-self: flex-start;
}

.series-grid-card:hover .series-card-link {
  color: var(--color-accent-dk);
}

/* フッター */
.footer-custom {
  background: #0a1c30;
  color: rgba(255, 255, 255, 0.5);
  padding: 2rem 0;
  font-size: 0.85rem;
}

.footer-custom a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-custom a:hover {
  color: var(--color-white);
}

/* ユーティリティ */
.section-label-en {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.35rem;
}

.section-heading {
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
}

.section-divider {
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 0.75rem 0 2rem;
}

.breadcrumb-custom {
  font-size: 0.8rem;
  color: var(--color-text-mute);
  padding: 0.75rem 0;
  margin-bottom: 0;
}

.breadcrumb-custom a {
  color: var(--color-accent);
  text-decoration: none;
}

.breadcrumb-custom a:hover {
  text-decoration: underline;
}

.breadcrumb-custom .sep {
  margin: 0 0.4rem;
}