/* TrendsNews common.css */

  /* ===== RESET & BASE ===== */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --ink:        #1a1814;
    --ink-mid:    #4a4742;
    --ink-light:  #8a8784;
    --paper:      #faf9f6;
    --paper-warm: #f3f1ec;
    --paper-card: #ffffff;
    --rule:       #e4e1da;
    --accent:     #c8521a;
    --accent-lt:  #fdf0e8;
    --accent-dk:  #8a3610;
    --teal:       #1d7a6b;
    --teal-lt:    #e4f4f1;
    --gold:       #b8920a;
    --gold-lt:    #fdf7e3;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.10);

    --font-serif: 'DM Serif Display', 'Noto Serif JP', serif;
    --font-sans:  'Noto Sans JP', sans-serif;
  }

  html { font-size: 16px; scroll-behavior: smooth; }
  body {
    font-family: var(--font-sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--accent); text-decoration: none; }
  a:hover { text-decoration: underline; }
  img { max-width: 100%; height: auto; display: block; }

  /* ===== HEADER ===== */
  .site-header {
    background: var(--ink);
    color: var(--paper);
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid var(--accent);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 24px;
  }
  .site-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--paper);
    letter-spacing: 0.03em;
    white-space: nowrap;
  }
  .site-logo span { color: var(--accent); }
  .site-nav { display: flex; gap: 24px; align-items: center; }
  .site-nav a {
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color 0.2s;
  }
  .site-nav a:hover { color: var(--accent); text-decoration: none; }
  .btn-search {
    background: none;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.7);
    padding: 5px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
  }
  .btn-search:hover { border-color: var(--accent); color: var(--accent); }

  /* ===== AD BANNER TOP ===== */
  .ad-banner-top {
    background: var(--paper-warm);
    border-bottom: 1px solid var(--rule);
    padding: 10px 24px;
    text-align: center;
  }
  .ad-slot {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #f0eee8;
    border: 1px dashed #c8c4bc;
    border-radius: var(--radius-sm);
    color: var(--ink-light);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
  }
  .ad-slot::before {
    content: "AD";
    background: var(--ink-light);
    color: white;
    font-size: 0.65rem;
    padding: 1px 5px;
    border-radius: 2px;
    letter-spacing: 0.1em;
  }
  .ad-banner-top .ad-slot { height: 90px; max-width: 728px; margin: 0 auto; }

  /* ===== BREADCRUMB ===== */
  .breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px;
    font-size: 0.78rem;
    color: var(--ink-light);
  }
  .breadcrumb a { color: var(--ink-mid); }
  .breadcrumb span { margin: 0 6px; }

  /* ===== MAIN LAYOUT ===== */
  .layout {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: start;
  }

  /* ===== ARTICLE ===== */
  .article-header { margin-bottom: 32px; }

  .category-tag {
    display: inline-block;
    background: var(--accent);
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
  }

  .article-title {
    font-family: var(--font-serif);
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    line-height: 1.3;
    color: var(--ink);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
  }

  .article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.82rem;
    color: var(--ink-light);
    padding-bottom: 20px;
    border-bottom: 1px solid var(--rule);
    flex-wrap: wrap;
  }
  .meta-author { display: flex; align-items: center; gap: 8px; }
  .meta-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-lt);
    border: 2px solid var(--accent);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-dk);
  }
  .meta-sep { color: var(--rule); }

  .article-eyecatch {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #e8e4dc 0%, #d4cfca 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 32px;
    position: relative;
  }
  .article-eyecatch img { width: 100%; height: 100%; object-fit: cover; }
  .eyecatch-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--ink-light);
    font-size: 0.85rem;
  }

  /* ===== ARTICLE BODY ===== */
  .article-body { font-size: 1rem; color: var(--ink); }

  .article-body h2 {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    color: var(--ink);
    margin: 2.5rem 0 1rem;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    line-height: 1.4;
  }
  .article-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
    margin: 2rem 0 0.75rem;
    padding-bottom: 4px;
    border-bottom: 1px dotted var(--rule);
  }
  .article-body p { margin-bottom: 1.5rem; }
  .article-body ul, .article-body ol { margin: 0 0 1.5rem 1.2rem; }
  .article-body li { margin-bottom: 6px; }

  .article-body blockquote {
    border-left: 4px solid var(--teal);
    background: var(--teal-lt);
    margin: 2rem 0;
    padding: 16px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--teal);
  }

  .article-body .info-box {
    background: var(--gold-lt);
    border: 1px solid #e8d48a;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 2rem 0;
  }
  .article-body .info-box strong {
    display: block;
    color: var(--gold);
    margin-bottom: 6px;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
  }

  /* ===== AD IN-CONTENT ===== */
  .ad-in-content { margin: 2.5rem 0; text-align: center; }
  .ad-in-content .ad-slot { height: 250px; width: 100%; border-radius: var(--radius-md); }

  /* ===== TABLE OF CONTENTS ===== */
  .toc {
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin: 0 0 2.5rem;
  }
  .toc-title {
    font-weight: 700;
    font-size: 0.88rem;
    letter-spacing: 0.08em;
    color: var(--ink-mid);
    margin-bottom: 12px;
  }
  .toc ol { margin: 0; padding-left: 1.2rem; }
  .toc li { font-size: 0.88rem; margin-bottom: 6px; }
  .toc a { color: var(--ink-mid); }
  .toc a:hover { color: var(--accent); text-decoration: none; }

  /* ===== TAGS ===== */
  .article-tags {
    margin: 2rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }
  .tags-label { font-size: 0.78rem; color: var(--ink-light); font-weight: 500; }
  .tag {
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    border-radius: 100px;
    padding: 3px 12px;
    font-size: 0.78rem;
    color: var(--ink-mid);
    transition: all 0.2s;
  }
  .tag:hover { background: var(--accent-lt); border-color: var(--accent); color: var(--accent); text-decoration: none; }

  /* ===== SNS SHARE ===== */
  .sns-share {
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    padding: 20px 0;
    margin: 2rem 0;
  }
  .sns-share-label { font-size: 0.78rem; color: var(--ink-light); letter-spacing: 0.08em; text-align: center; margin-bottom: 12px; }
  .sns-buttons { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
  .sns-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
  }
  .sns-btn:hover { opacity: 0.85; }
  .sns-btn.x { background: #000; color: #fff; }
  .sns-btn.line { background: #06c755; color: #fff; }
  .sns-btn.facebook { background: #1877f2; color: #fff; }
  .sns-btn.copy { background: var(--paper-warm); color: var(--ink-mid); border: 1px solid var(--rule); }

  /* ===== AUTHOR BOX ===== */
  .author-box {
    background: var(--paper-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 2.5rem 0;
    box-shadow: var(--shadow-sm);
  }
  .author-box-header { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
  .author-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--accent-lt);
    border: 3px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--accent-dk);
    font-weight: 700;
    flex-shrink: 0;
    overflow: hidden;
  }
  .author-avatar img { width: 100%; height: 100%; object-fit: cover; }
  .author-info-name { font-weight: 700; font-size: 1rem; color: var(--ink); }
  .author-info-role { font-size: 0.78rem; color: var(--accent); font-weight: 500; margin-top: 2px; }
  .author-bio { font-size: 0.88rem; color: var(--ink-mid); line-height: 1.7; margin-bottom: 12px; }
  .author-sns { display: flex; gap: 10px; flex-wrap: wrap; }
  .author-sns a {
    font-size: 0.78rem;
    color: var(--ink-light);
    border: 1px solid var(--rule);
    border-radius: 100px;
    padding: 3px 12px;
    transition: all 0.2s;
  }
  .author-sns a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

  /* ===== RELATED POSTS ===== */
  .related-posts { margin: 2.5rem 0; }
  .section-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--ink);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .section-title::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
  .related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .related-card {
    background: var(--paper-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
  }
  .related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); text-decoration: none; }
  .related-thumb {
    aspect-ratio: 16/9;
    background: var(--paper-warm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-light);
    font-size: 0.75rem;
    overflow: hidden;
  }
  .related-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .related-info { padding: 12px; }
  .related-cat { font-size: 0.68rem; color: var(--accent); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
  .related-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* ===== AD BOTTOM ===== */
  .ad-bottom { margin: 2.5rem 0; text-align: center; }
  .ad-bottom .ad-slot { height: 250px; width: 100%; border-radius: var(--radius-md); }

  /* ===== SIDEBAR ===== */
  .sidebar { position: sticky; top: 80px; }

  .sidebar-widget {
    background: var(--paper-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
  }
  .widget-title {
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
  }

  .sidebar-ad .ad-slot { height: 250px; width: 100%; border-radius: var(--radius-md); }

  .rank-list { list-style: none; }
  .rank-item { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--rule); }
  .rank-item:last-child { border-bottom: none; }
  .rank-num {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--ink);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .rank-item:nth-child(1) .rank-num { background: #c9952a; }
  .rank-item:nth-child(2) .rank-num { background: #9aa0ab; }
  .rank-item:nth-child(3) .rank-num { background: #a06030; }
  .rank-item a { font-size: 0.85rem; color: var(--ink); line-height: 1.4; }
  .rank-item a:hover { color: var(--accent); text-decoration: none; }

  .cat-list { list-style: none; }
  .cat-item { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--rule); font-size: 0.88rem; }
  .cat-item:last-child { border-bottom: none; }
  .cat-item a { color: var(--ink-mid); display: flex; align-items: center; gap: 6px; }
  .cat-item a::before { content: "▸"; color: var(--accent); font-size: 0.7rem; }
  .cat-item a:hover { color: var(--accent); text-decoration: none; }
  .cat-count { font-size: 0.75rem; color: var(--ink-light); background: var(--paper-warm); border-radius: 100px; padding: 1px 8px; }

  .site-intro { text-align: center; }
  .site-intro-logo { font-family: var(--font-serif); font-size: 1.4rem; color: var(--ink); margin-bottom: 8px; }
  .site-intro-logo span { color: var(--accent); }
  .site-intro p { font-size: 0.82rem; color: var(--ink-mid); line-height: 1.7; margin-bottom: 14px; }
  .site-intro-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px; }
  .stat-item { background: var(--paper-warm); border-radius: var(--radius-md); padding: 8px; text-align: center; }
  .stat-num { font-family: var(--font-serif); font-size: 1.1rem; color: var(--accent); font-weight: 700; }
  .stat-label { font-size: 0.65rem; color: var(--ink-light); margin-top: 2px; }

  .newsletter-form { display: flex; flex-direction: column; gap: 10px; }
  .newsletter-form p { font-size: 0.82rem; color: var(--ink-mid); margin-bottom: 4px; }
  .newsletter-input {
    width: 100%; padding: 9px 12px;
    border: 1px solid var(--rule);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    background: var(--paper-warm);
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s;
  }
  .newsletter-input:focus { border-color: var(--accent); }
  .newsletter-btn {
    width: 100%; padding: 10px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
  }
  .newsletter-btn:hover { background: var(--accent-dk); }

  .tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
  .tag-cloud .tag { font-size: 0.75rem; }

  /* ===== FOOTER ===== */
  .site-footer { background: var(--ink); color: rgba(255,255,255,0.7); padding: 48px 24px 24px; margin-top: 60px; }
  .footer-inner { max-width: 1200px; margin: 0 auto; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
  .footer-logo { font-family: var(--font-serif); font-size: 1.4rem; color: white; margin-bottom: 10px; }
  .footer-logo span { color: var(--accent); }
  .footer-desc { font-size: 0.82rem; line-height: 1.7; margin-bottom: 16px; }
  .footer-heading { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: white; margin-bottom: 14px; }
  .footer-links { list-style: none; }
  .footer-links li { margin-bottom: 8px; }
  .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.82rem; transition: color 0.2s; }
  .footer-links a:hover { color: var(--accent); text-decoration: none; }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    flex-wrap: wrap;
    gap: 10px;
  }
  .footer-bottom-links { display: flex; gap: 16px; }
  .footer-bottom-links a { color: rgba(255,255,255,0.5); }
  .footer-bottom-links a:hover { color: var(--accent); text-decoration: none; }

  /* ===== RESPONSIVE ===== */
  @media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .related-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 600px) {
    .site-nav { display: none; }
    .layout { padding: 0 16px 40px; gap: 28px; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .site-footer { padding: 32px 16px 20px; }
  }

  /* ===== スマホ対応追加 ===== */
  @media (max-width: 768px) {
    .header-inner { height: auto; padding: 12px 16px; flex-wrap: wrap; gap: 12px; }
    .site-logo { font-size: 1.2rem; }
    .site-nav { display: none; }
    .btn-search { padding: 4px 10px; font-size: 0.75rem; }
    .layout { grid-template-columns: 1fr; padding: 0 16px 40px; gap: 24px; }
    .sidebar { position: static; }
    .article-title { font-size: 1.5rem; }
    .article-meta { gap: 10px; font-size: 0.78rem; }
    .related-grid { grid-template-columns: 1fr; }
    .author-box-header { flex-direction: column; align-items: flex-start; }
    .sns-buttons { gap: 8px; }
    .sns-btn { padding: 8px 12px; font-size: 0.78rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
    .footer-bottom-links { flex-wrap: wrap; gap: 10px; }
    .toc { padding: 14px 16px; }
    .ad-banner-top { padding: 8px 12px; }
    .site-intro-stats { gap: 6px; }
    .stat-item { padding: 6px; }
    .stat-num { font-size: 0.95rem; }
    .rank-full-item { flex-direction: column; gap: 10px; }
    .rank-badge { width: 32px; height: 32px; }
    .page-title { font-size: 1.4rem; }
    .card-grid { grid-template-columns: 1fr; }
    .breadcrumb { padding: 10px 16px; font-size: 0.75rem; }
  }
  @media (max-width: 480px) {
    .article-title { font-size: 1.3rem; }
    .footer-grid { padding: 0; }
  }