/* ════════════════════════════════════════
   AIO固有スタイル ― basic.css を前提とした上書き・追加のみ
   ════════════════════════════════════════ */
:root {
  --aio-glow:    rgba(30,64,175,0.08);
  --aio-cyan:    #0369a1;
  --aio-gold:    #c47a00;
  --aio-dim:     #94a3b8;
  --aio-card-bg: #f8fafc;
  --radius:      10px;
  --radius-lg:   16px;
}
html { scroll-behavior: smooth; }
body { background-color: var(--gray-bg); line-height: 1.8; -webkit-font-smoothing: antialiased; }
abbr { text-decoration: none; border-bottom: 1px dotted var(--aio-dim); cursor: help; }
code { font-family: 'DM Mono', monospace; font-size: 0.88em; background: var(--aio-glow); color: var(--accent); padding: 2px 7px; border-radius: 0; }
strong { font-weight: 700; color: var(--primary-deep); }
cite a { color: var(--text-sub); font-size: 0.85em; }
cite a:hover { color: var(--lita-red); }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-bg); }
::-webkit-scrollbar-thumb { background: rgba(30,64,175,0.3); border-radius: 0; }

/* ── サイト固有ヘッダー（basic.css の #header とは別） ── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 0 40px;
  box-shadow: 0 1px 8px rgba(30,64,175,0.07);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, var(--accent) 0%, var(--aio-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-nav { display: flex; gap: 28px; align-items: center; }
.header-nav a { color: var(--text-sub); font-size: 0.88rem; font-weight: 500; transition: color 0.2s; }
.header-nav a:hover { color: var(--primary-deep); text-decoration: none; }
.header-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 0;
  font-size: 0.85rem !important;
  font-weight: 700 !important;
  transition: background 0.2s, transform 0.15s;
}
.header-cta:hover { background: var(--hover-blue) !important; transform: translateY(-1px); }

/* ── HERO ── */
/* basic.css の .main-bar を上書き */
.main-bar {
  background: linear-gradient(135deg, #ddeeff 0%, #f0f7ff 60%, #e4f3fb 100%) !important;
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
  padding: 0 !important; /* .main-inner で制御 */
}
.main-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 20% 50%, rgba(30,64,175,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 80% at 80% 20%, rgba(3,105,161,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.main-bar::after {
  content: 'AIO';
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: clamp(80px, 12vw, 180px);
  color: rgba(30,64,175,0.05);
  letter-spacing: -0.05em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}
/* basic.css の .main-inner padding を活かす */
.main-bar h1 {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 900;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem) !important;
  line-height: 1.4 !important;
  color: var(--primary-deep) !important;
  margin-bottom: 1rem;
}
.main-bar h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--aio-glow);
  border: 1px solid rgba(30,64,175,0.25);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 0;
  margin-bottom: 1.2rem;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 1.2rem;
  flex-wrap: wrap;
  align-items: center;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-sub);
}
.hero-meta-item svg { opacity: 0.6; flex-shrink: 0; }

/* PDF Download Bar */
.pdf-download-bar {
  background: #f0f4ff;
  border-top: 1px solid #d0daf5;
  border-bottom: 1px solid #d0daf5;
  padding: 12px 20px;
  text-align: center;
}
.pdf-download-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1.5px solid #3b5bdb;
  border-radius: 6px;
  padding: 10px 20px;
  color: #3b5bdb;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  transition: background 0.2s, color 0.2s;
}
.pdf-download-link:hover {
  background: #3b5bdb;
  color: #fff;
}
.pdf-icon { flex-shrink: 0; }
.pdf-download-text { white-space: nowrap; }
.pdf-download-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: #666;
  border-left: 1px solid #ccd5f5;
  padding-left: 10px;
  white-space: nowrap;
}
.pdf-download-link:hover .pdf-download-sub {
  color: #cce;
  border-left-color: #8899ee;
}
@media (max-width: 600px) {
  .pdf-download-link { flex-wrap: wrap; justify-content: center; gap: 6px; }
  .pdf-download-sub { border-left: none; padding-left: 0; }
}

/* ── インラインTOC ── */
.toc-inline {
  background: #fff;
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--accent);
  border-radius: 0;
  padding: 1.5rem 1.8rem;
  margin-bottom: 2.5rem;
}
.toc-inline-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--aio-dim);
  margin-bottom: 1rem;
}
.toc-inline-list {
  list-style: none !important;
  padding: 0;
  columns: 2;
  column-gap: 2rem;
}
.toc-inline-list li {
  margin-bottom: 4px !important;
  padding-left: 0 !important;
  break-inside: avoid;
  text-indent: 0 !important;
}
.toc-inline-list li::before { display: none !important; }
.toc-inline-list a {
  font-size: 0.85rem;
  color: var(--text-sub);
  text-decoration: none;
  padding: 3px 0;
  display: block;
  border-bottom: none;
  transition: color 0.2s;
}
.toc-inline-list a:hover { color: var(--accent); }
.toc-inline-list .toc-ch { font-weight: 700; color: var(--text-main); }
.toc-inline-list .toc-sub-item { padding-left: 1em; color: var(--text-sub); }
@media (max-width: 640px) {
  .toc-inline-list { columns: 1; }
}

/* ── セクション間余白 ── */
/* basic.css の #article-content 奇偶交互背景はここでは使わない（article直下でないため） */

/* ── 見出し（basic.cssのh2を上書き） ── */
#aio_overviews article h2 {
  font-weight: 900 !important;
  font-size: clamp(1.25rem, 2vw, 1.6rem) !important;
  color: var(--primary-deep) !important;
  line-height: 1.4 !important;
  padding-bottom: 1.2rem;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: 1.8rem;
}
#aio_overviews article h2 .en {
  display: block;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.5em;
  color: var(--aio-dim);
  margin-top: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
/* ── .sstitle ── サブタイトルのサブタイトル */
#aio_overviews article h3 {
  font-weight: 700;
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--primary-deep);
}
#aio_overviews article h3.sstitle {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: clamp(0.88rem, 1.8vw, 1.05rem);
  color: var(--primary-deep);
  margin: 2.2em 0 0.9em;
  padding: 0.55em 1em 0.55em 1.1em;
  background: linear-gradient(90deg, rgba(30,64,175,0.06) 0%, transparent 100%);
  border-left: 3px solid var(--accent);
  border-right: 1px solid var(--border);
  letter-spacing: 0.01em;
  line-height: 1.5;
}
#aio_overviews article h3.sstitle::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--aio-cyan) 100%);
  border-radius: 0;
}
#aio_overviews article h4 {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  margin-top: 1.6em;
  margin-bottom: 0.5em;
}

/* chapter badge */
.chapter-num {
  display: inline-block;
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 0.6em;
  color: var(--accent);
  background: var(--aio-glow);
  border: 1px solid rgba(30,64,175,0.25);
  padding: 3px 12px;
  border-radius: 0;
  margin-right: 10px;
  letter-spacing: 0.05em;
  vertical-align: middle;
  display: none;
}

/* ── 段落 ── */
p { color: var(--text-main); line-height: 1.85; }

/* ── テーブル（basic.cssの.tbl_basicを上書き） ── */
.tbl_basic { overflow-x: auto; margin: 1.5rem 0; }
caption { text-align: left; font-size: 0.8rem; color: var(--aio-dim); margin-bottom: 8px; font-weight: 500; }
thead tr { background: var(--aio-glow); }
thead th { color: var(--accent) !important; font-size: 0.8rem; letter-spacing: 0.03em; }
.tbl_basic thead th { border-bottom: 2px solid rgba(30,64,175,0.25); }
tbody tr:hover { background: var(--aio-glow); }
tbody td strong { color: var(--aio-cyan); }

/* ── リスト ── */
article ul li, article ol li {
  position: relative;
  padding-left: 1.4em;
  margin-bottom: 8px;
  color: var(--text-main);
  line-height: 1.75;
}
article ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.7em;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
article ol { counter-reset: ol-counter; }
article ol li::before {
  content: counter(ol-counter);
  counter-increment: ol-counter;
  position: absolute;
  left: 0; top: 0.1em;
  font-family: 'Sora', sans-serif;
  font-size: 0.75em;
  font-weight: 700;
  color: var(--accent);
  background: var(--aio-glow);
  border: 1px solid rgba(30,64,175,0.3);
  width: 20px; height: 20px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.conclusion-list.grid-3{
	margin-top:1rem;
	gap:1rem;
}
.conclusion-list li {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent);
  border-radius: 0;
  padding: 14px 18px 14px 38px;
}
.conclusion-list li::before { top: 1.1em; left: 14px; }
.conclusion-list li strong { display: block; margin-bottom: 4px; color: var(--primary-deep); }

/* ── DL ── */
dl { background: var(--aio-card-bg); border: 1px solid var(--border-light); border-radius: 0; padding: 18px 22px; }
dt { font-weight: 700; color: var(--accent); font-size: 0.92rem; padding: 12px 0 4px; border-top: 1px solid var(--border-light); }
dl dt:first-of-type { border-top: none; padding-top: 4px; }
dd { color: var(--text-sub); padding-left: 14px; margin-bottom: 4px; font-size: 0.9rem; }

/* ── INFO BOX ── */
.info-box {
  padding: 0.2em 0;
  margin: 1.2rem 0;
}
.info-box p { color: var(--text-main); margin: 0; line-height: 1.85; }
.info-box strong { color: var(--accent); }

/* .sstitle の直後の .info-box はマージンを詰める */
h3.sstitle + .info-box {
  margin-top: 0.5rem;
}

/* ── STAT CARDS ── */
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 1.8rem 0; }
.stat-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: 22px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(30,64,175,0.06);
}
.stat-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; }
.stat-card.c-blue::after { background: var(--accent); }
.stat-card.c-cyan::after { background: var(--aio-cyan); }
.stat-card.c-gold::after { background: var(--aio-gold); }
.stat-num { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 2rem; line-height: 1; margin-bottom: 6px; }
.stat-card.c-blue .stat-num { color: var(--accent); }
.stat-card.c-cyan .stat-num { color: var(--aio-cyan); }
.stat-card.c-gold .stat-num { color: var(--aio-gold); }
.stat-label { font-size: 0.8rem; color: var(--text-sub); line-height: 1.4; }
.stat-sub { font-size: 0.72rem; color: var(--aio-dim); margin-top: 6px; }

/* ── PREP GRID ── */
.prep-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 1.5rem 0; }
.prep-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: 18px 14px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.prep-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(30,64,175,0.1); }
.prep-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--aio-cyan)); }
.prep-letter { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.5rem; color: var(--accent); display: block; }
.prep-label { font-size: 0.7rem; font-weight: 700; color: var(--aio-dim); text-transform: uppercase; letter-spacing: 0.08em; margin: 4px 0; }
.prep-text { font-size: 0.8rem; color: var(--text-sub); }

/* ── E-E-A-T GRID ── */
.eeat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 1.5rem 0; }
.eeat-card { background: #fff; border: 1px solid var(--border-light); border-radius: 0; padding: 16px; text-align: center; }
.eeat-letter { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.8rem; color: var(--accent); line-height: 1; margin-bottom: 6px; }
.eeat-word { font-weight: 700; font-size: 0.85rem; color: var(--primary-deep); margin-bottom: 4px; }
.eeat-ja { font-size: 0.78rem; color: var(--text-sub); margin-bottom: 6px; }
.eeat-desc { font-size: 0.75rem; color: var(--aio-dim); line-height: 1.5; }

/* ── GEO STEPS ── */
.geo-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 1.8rem 0;
  list-style: none;
  padding: 0;
  counter-reset: none;
}
.geo-steps > li.geo-step {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: 24px 20px;
  position: relative;
  /* article ol li の汎用スタイルをリセット */
  padding-left: 20px;
  margin-bottom: 0;
}
.geo-steps > li.geo-step::before {
  /* article ol li::before の番号バッジを非表示 */
  display: none !important;
}
.geo-step-num {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 2.8rem;
  color: rgba(30,64,175,0.08);
  line-height: 1;
  position: absolute;
  top: 10px;
  right: 16px;
}
.geo-step-title { font-weight: 700; font-size: 0.9rem; color: var(--accent); margin-bottom: 8px; }
.geo-step-desc { font-size: 0.85rem; color: var(--text-sub); line-height: 1.65; }

/* ── SCHEMA TAGS ── */
.schema-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.2rem 0; }
.schema-tag { background: rgba(3,105,161,0.07); border: 1px solid rgba(3,105,161,0.22); color: var(--aio-cyan); font-family: 'DM Mono', monospace; font-size: 0.82rem; padding: 6px 12px; border-radius: 0; }

/* ── FAQ（basic.cssの.faq-cardを上書き） ── */
.faq-list { margin-top: 1.5rem; }
.faq-card {
  background: #fff !important;
  border: 1px solid var(--border-light) !important;
  border-bottom: 1px solid var(--border-light) !important;
  border-radius: 0;
  margin-bottom: 8px !important;
  padding: 0 !important;
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.faq-card:hover { box-shadow: 0 2px 12px rgba(30,64,175,0.08); }
.faq-card h3 { display: none; } /* basic.css の h3スタイルを打ち消し */
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
}
.faq-q-text {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
  line-height: 1.5;
  flex: 1;
}
.faq-q-text::before {
  content: 'Q.';
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--lita-blue);
  margin-right: 10px;
}
.faq-icon {
  flex-shrink: 0;
  width: 22px; height: 22px;
  background: var(--aio-glow);
  border: 1px solid rgba(30,64,175,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  transition: transform 0.3s;
  margin-top: 2px;
}
.faq-card.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-card.open .faq-a { max-height: 500px; }
.faq-a-inner { padding: 14px 20px 18px; font-size: 0.9rem; color: var(--text-sub); line-height: 1.8; border-top: 1px solid var(--border-light); }
.faq-a-inner::before {
  content: 'A.';
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--lita-blue);
  margin-right: 10px;
}

/* ── CTA（basic.cssの aside.cta-section を補完） ── */
.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}
.cta-text h2 { border-bottom: none !important; padding-bottom: 0 !important; margin-bottom: 0.8rem !important; }
.cta-text p { color: var(--text-sub); font-size: 0.92rem; max-width: 520px; }
.cta-contact {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: 28px;
  text-align: center;
  min-width: 220px;
  box-shadow: 0 4px 16px rgba(30,64,175,0.1);
}
.cta-company { font-weight: 700; color: var(--primary-deep); margin-bottom: 8px; }
.cta-tel { font-family: 'Sora', sans-serif; font-weight: 700; font-size: 1.3rem; color: var(--accent); display: block; margin-bottom: 18px; }

/* ── FOOTER（basic.cssの#footerとは別） ── */
#site-footer { background: var(--primary-deep); border-top: 1px solid var(--dark-border); padding: 28px 40px; text-align: center; }
#site-footer p { color: #94a3b8; font-size: 0.82rem; padding: 0; }
#site-footer a { color: #94a3b8; }
#site-footer a:hover { color: #fff; }

/* ── PAGE TOP（basic.cssの#pageTopスタイルを活かす） ── */
/* basic.css: .show で opacity/visibility を切り替え。JSを合わせる。 */

/* ── BENEFIT CARDS ── */
.benefit-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 1.8rem 0;
  padding: 0;
}
.benefit-cards > li {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: 22px 22px 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(30,64,175,0.05);
  transition: box-shadow 0.2s, transform 0.2s;
}
.benefit-cards > li:hover {
  box-shadow: 0 4px 16px rgba(30,64,175,0.1);
  transform: translateY(-2px);
}
.benefit-cards > li::before { display: none !important; }
.benefit-cards > li::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--aio-cyan));
}
.benefit-cards > li.is-caution::after {
  background: var(--aio-gold);
}
#aio_overviews article .benefit-cards > li h4 {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--accent);
  margin: 0 0 8px;
  padding: 0;
  letter-spacing: 0.02em;
}
#aio_overviews article .benefit-cards > li h4::before {
  content: '— ';
  opacity: 0.5;
}
#aio_overviews article .benefit-cards > li.is-caution h4 {
  color: var(--aio-gold);
}
.benefit-cards > li p {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .page-layout { padding: 0 1.2rem; }
  .main-bar::after { display: none; }
  .prep-grid { grid-template-columns: repeat(2, 1fr); }
  .eeat-grid { grid-template-columns: repeat(2, 1fr); }
  .geo-steps { grid-template-columns: 1fr; }
  .benefit-cards { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .header-nav { display: none; }
  #site-header { padding: 0 20px; }
}
@media (max-width: 640px) {
  .prep-grid { grid-template-columns: repeat(2, 1fr); }
  .eeat-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-contact { min-width: unset; width: 100%; }
}
/* ════════════════════════════════════════
   ① SEO vs AIO 比較インフォグラフィック
   ════════════════════════════════════════ */
.aio-seo-compare {
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  margin: 1.8rem 0 2rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(30,64,175,0.09);
}
.compare-col {
  padding: 26px 24px;
}
.compare-seo {
  background: #f8f9fa;
}
.compare-aio {
  background: linear-gradient(140deg, #e8f0fe 0%, #f0f7ff 100%);
}
.compare-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-left: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
}
.compare-vs-badge {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 0.72rem;
  color: var(--aio-dim);
  background: var(--aio-glow);
  border: 1px solid rgba(30,64,175,0.2);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0;
}
.compare-col-header {
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 2px solid;
}
.compare-seo .compare-col-header { border-color: #dadce0; }
.compare-aio .compare-col-header { border-color: var(--accent); }
.compare-type-label {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: 4px;
}
.compare-seo .compare-type-label { color: #5f6368; }
.compare-aio .compare-type-label { color: var(--accent); }
.compare-type-desc {
  font-size: 0.8rem;
  font-weight: 700;
}
.compare-seo .compare-type-desc { color: #80868b; }
.compare-aio .compare-type-desc { color: var(--aio-cyan); }
.compare-rows {
  display: flex;
  flex-direction: column;
}
.compare-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 9px 0;
  border-bottom: 1px solid;
}
.compare-seo .compare-row { border-color: #e9ecef; }
.compare-aio .compare-row { border-color: rgba(30,64,175,0.12); }
.compare-row:last-child { border-bottom: none; }
.compare-row-key {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aio-dim);
}
.compare-row-val {
  font-size: 0.87rem;
  font-weight: 600;
  line-height: 1.4;
}
.compare-seo .compare-row-val { color: #5f6368; }
.compare-aio .compare-row-val { color: var(--primary-deep); }

@media (max-width: 640px) {
  .aio-seo-compare {
    grid-template-columns: 1fr;
  }
  .compare-divider {
    padding: 10px 16px;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    flex-direction: row;
    gap: 10px;
  }
  .compare-divider::before,
  .compare-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-light);
  }
}

/* ════════════════════════════════════════
   ② 重複率の急落グラフ
   ════════════════════════════════════════ */
.overlap-graph {
  margin: 1.2rem 0 0;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 20px 16px 10px;
  box-shadow: 0 2px 10px rgba(30,64,175,0.06);
}
.overlap-graph figcaption {
  display: block;
  text-align: center;
  font-size: 0.76rem;
  color: var(--aio-dim);
  margin-top: 10px;
  letter-spacing: 0.03em;
}
.overlap-graph svg {
  width: 100%;
  height: auto;
  display: block;
}
/* SVGグリッド・軸 */
.og-grid        { stroke: #f1f5f9; stroke-width: 1; fill: none; }
.og-grid-dash   { stroke-dasharray: 4 3; }
.og-axis        { stroke: #e2e8f0; stroke-width: 1.5; fill: none; }
/* 棒 */
.og-bar-1 { fill: var(--accent); }
.og-bar-2 { fill: var(--aio-cyan); }
.og-bar-3 { fill: var(--aio-gold); }
/* 数値ラベル */
.og-val {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 22px;
}
.og-val-3 { font-size: 15px; }
.og-val-1 { fill: var(--accent); }
.og-val-2 { fill: var(--aio-cyan); }
.og-val-3 { fill: var(--aio-gold); }
/* トレンドライン */
.og-trend     { fill: none; stroke: #ef4444; stroke-width: 2; stroke-dasharray: 6 3; opacity: 0.55; }
.og-trend-dot { fill: #ef4444; opacity: 0.6; }
/* 下落インジケーター */
.og-arrow   { fill: #ef4444; opacity: 0.65; font-size: 20px; }
.og-decline { fill: #ef4444; opacity: 0.8; font-size: 10px; font-weight: 700; }
/* 軸ラベル */
.og-y-label { fill: #94a3b8; font-size: 10px; }
.og-label   { fill: #64748b; font-size: 11px; }