/* ========== gym-blog 共通スタイル (本HPと統一) ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #050507;
  --bg-soft: #0a0a0c;
  --bg-card: #0e0e11;
  --accent1: #00f0ff;
  --accent2: #ff00aa;
  --accent3: #ffcc00;
  --ink: #ffffff;
  --ink-soft: #c8c8d0;
  --ink-faint: #888892;
  --line: rgba(255,255,255,0.08);
  --line-soft: rgba(255,255,255,0.04);
  --line-accent: rgba(0,240,255,0.25);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans JP', sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.85;
  overflow-x: hidden;
}

/* グリッド背景(本HPと同じ) */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,240,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 80%);
}

/* グラデーション文字 */
.grad {
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.neon {
  color: var(--accent1);
  text-shadow: 0 0 20px rgba(0,240,255,0.6), 0 0 40px rgba(0,240,255,0.3);
}

a { color: var(--accent1); text-decoration: none; transition: 0.3s; }
a:hover { color: var(--accent2); }

h1, h2, h3, h4 {
  font-family: 'Poppins', 'Noto Sans JP', sans-serif;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--ink);
}

img { max-width: 100%; height: auto; display: block; }

/* ========== ヘッダー ========== */
.gb-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 18px 6%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(5,5,7,0.6);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--line);
}
.gb-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 24px;
  letter-spacing: 0.2em;
  background: linear-gradient(90deg, #fff, var(--accent1));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.gb-logo .accent {
  color: var(--accent1);
  -webkit-text-fill-color: var(--accent1);
}
.gb-nav {
  display: flex;
  gap: 32px;
  font-family: 'Poppins', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
}
.gb-nav a {
  color: var(--ink);
  position: relative;
}
.gb-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--accent1);
  transition: 0.3s;
}
.gb-nav a:hover::after { width: 100%; }

/* ========== パンくず ========== */
.gb-breadcrumb {
  padding: 30px 6% 0;
  font-size: 11px;
  font-family: 'Poppins', sans-serif;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.gb-breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.gb-breadcrumb li { display: flex; align-items: center; gap: 6px; }
.gb-breadcrumb li + li::before {
  content: '/';
  color: var(--ink-faint);
  opacity: 0.6;
}
.gb-breadcrumb a { color: var(--accent1); }
.gb-breadcrumb [aria-current="page"] { color: var(--ink-soft); }

/* ========== ヒーロー ========== */
.gb-hero {
  position: relative;
  padding: 70px 6% 60px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  z-index: 1;
}
.gb-hero .tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid rgba(0,240,255,0.4);
  border-radius: 50px;
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  background: rgba(0,240,255,0.05);
  color: var(--ink);
  margin-bottom: 28px;
}
.gb-hero .tag::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent1);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent1);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.gb-hero h1 {
  font-size: clamp(44px, 6.5vw, 88px);
  line-height: 1.1;
  margin-bottom: 32px;
  font-weight: 900;
  letter-spacing: -0.01em;
}
.gb-hero h1 .accent {
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 24px rgba(0,240,255,0.35));
}
.gb-hero p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 2;
  max-width: 520px;
}
.gb-hero p strong { color: var(--accent1); font-weight: 700; }
.gb-hero-img {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 30px 80px rgba(0,240,255,0.15), 0 0 0 1px rgba(255,255,255,0.06);
}
.gb-hero-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(5,5,7,0.4));
  pointer-events: none;
}
.gb-hero-img img { width: 100%; height: 100%; object-fit: cover; }

/* ========== セクション ========== */
.gb-section {
  padding: 70px 6%;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.gb-section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--accent1);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.gb-section-title::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--accent1);
}
.gb-section h2.gb-heading {
  font-size: clamp(34px, 4.5vw, 58px);
  margin-bottom: 50px;
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.01em;
}

/* ========== 記事カードグリッド ========== */
.gb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}
.gb-card {
  display: block;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  color: inherit;
}
.gb-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-accent);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.gb-card-img {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-soft);
}
.gb-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: 0.6s ease;
}
.gb-card:hover .gb-card-img img { transform: scale(1.04); }
.gb-card-body { padding: 26px 28px 30px; }
.gb-card-meta {
  display: flex;
  gap: 14px;
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.gb-card-meta > span:first-child { color: var(--accent1); }
.gb-card-meta time { color: var(--ink-faint); }
.gb-card h2, .gb-card h3 {
  font-size: 18px;
  line-height: 1.55;
  margin-bottom: 12px;
  font-weight: 800;
}
.gb-card p {
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.85;
}

/* ========== カテゴリハブカード ========== */
.gb-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.gb-cat-card {
  display: block;
  position: relative;
  padding: 44px 32px 68px;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 18px;
  text-decoration: none;
  color: inherit;
  transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 240px;
  overflow: hidden;
}
.gb-cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent1), transparent);
  transition: 0.6s;
}
.gb-cat-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-accent);
}
.gb-cat-card:hover::before { left: 100%; }
.gb-cat-card .num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 56px;
  color: var(--accent1);
  letter-spacing: 0.15em;
  margin-bottom: 24px;
  line-height: 1;
  text-shadow: 0 0 30px rgba(0,240,255,0.5);
}
.gb-cat-card h2 {
  font-size: 24px;
  margin-bottom: 10px;
  line-height: 1.35;
  font-weight: 900;
}
.gb-cat-card p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
  font-weight: 300;
}
.gb-cat-card .arrow {
  position: absolute;
  bottom: 24px;
  right: 30px;
  color: var(--accent1);
  font-size: 18px;
  transition: 0.3s;
}
.gb-cat-card:hover .arrow { transform: translateX(6px); }

/* ========== 記事ページ ========== */
.gb-article-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 50px 24px 80px;
  position: relative;
  z-index: 1;
}
.gb-article-meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  margin-bottom: 24px;
}
.gb-article-meta .cat {
  color: var(--accent1);
}
.gb-article-title {
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.4;
  margin-bottom: 32px;
  font-weight: 900;
  letter-spacing: 0.02em;
}
.gb-article-cover {
  aspect-ratio: 3/2;
  overflow: hidden;
  margin-bottom: 40px;
  border-radius: 12px;
  position: relative;
}
.gb-article-cover img { width: 100%; height: 100%; object-fit: cover; }

/* ========== 関係性開示 ========== */
.gb-disclosure {
  margin: 0 0 36px;
  padding: 22px 24px;
  border-left: 3px solid var(--accent1);
  background: rgba(0,240,255,0.05);
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.85;
  border-radius: 0 8px 8px 0;
}
.gb-disclosure strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent1);
  font-family: 'Poppins', 'Noto Sans JP', sans-serif;
  font-weight: 700;
  letter-spacing: 0.15em;
  font-size: 11px;
}

/* ========== 著者カード ========== */
.gb-author {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 40px;
}
.gb-author-img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--accent1);
  box-shadow: 0 0 0 3px rgba(0,240,255,0.1);
}
.gb-author-img img { width: 100%; height: 100%; object-fit: cover; }
.gb-author-info { flex: 1; }
.gb-author-name {
  font-family: 'Poppins', 'Noto Sans JP', sans-serif;
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 4px;
  color: var(--ink);
}
.gb-author-role {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent1);
  margin-bottom: 8px;
}
.gb-author-bio {
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.8;
}

/* ========== 目次 ========== */
.gb-toc {
  margin: 36px 0;
  padding: 24px 28px;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 12px;
}
.gb-toc-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--accent1);
  margin-bottom: 14px;
}
.gb-toc ol {
  list-style: none;
  counter-reset: toc;
}
.gb-toc li {
  counter-increment: toc;
  padding: 6px 0;
}
.gb-toc li::before {
  content: counter(toc, decimal-leading-zero);
  color: var(--accent1);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  margin-right: 14px;
  letter-spacing: 0.1em;
}
.gb-toc a {
  color: var(--ink-soft);
  font-size: 14px;
}
.gb-toc a:hover { color: var(--accent1); }

/* ========== 本文 ========== */
.gb-body {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 2;
}
.gb-body h2 {
  font-size: 26px;
  margin: 56px 0 22px;
  padding-left: 18px;
  border-left: 3px solid var(--accent1);
  line-height: 1.5;
  color: var(--ink);
  font-weight: 900;
}
.gb-body h3 {
  font-size: 20px;
  margin: 38px 0 16px;
  color: var(--ink);
  font-weight: 800;
}
.gb-body p { margin-bottom: 24px; }
.gb-body strong { color: var(--accent1); font-weight: 700; }
.gb-body ul, .gb-body ol { padding-left: 26px; margin-bottom: 24px; }
.gb-body ul li, .gb-body ol li { margin-bottom: 8px; }
.gb-body blockquote {
  margin: 30px 0;
  padding: 8px 24px;
  border-left: 3px solid var(--accent2);
  color: var(--ink-soft);
  font-style: italic;
}
.gb-body img { margin: 28px 0; border-radius: 4px; }

/* ========== FAQ ========== */
.gb-faq {
  margin: 56px 0 40px;
}
.gb-faq-item {
  border-bottom: 1px solid var(--line);
  padding: 0;
}
.gb-faq-item summary {
  padding: 24px 4px;
  cursor: pointer;
  list-style: none;
  display: flex;
  gap: 18px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  color: var(--ink);
  align-items: center;
  font-weight: 700;
}
.gb-faq-item summary::-webkit-details-marker { display: none; }
.gb-faq-item summary::before {
  content: 'Q';
  font-family: 'Bebas Neue', sans-serif;
  color: var(--accent1);
  font-size: 22px;
  letter-spacing: 0.1em;
}
.gb-faq-item summary::after {
  content: '+';
  margin-left: auto;
  color: var(--accent1);
  font-size: 22px;
  transition: 0.3s;
}
.gb-faq-item[open] summary::after { transform: rotate(45deg); }
.gb-faq-item-body {
  padding: 4px 4px 24px 50px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 2;
}

/* ========== CTA ========== */
.gb-cta {
  margin: 60px 0 30px;
  padding: 50px 36px;
  background: linear-gradient(135deg, rgba(0,240,255,0.08), rgba(255,0,170,0.05));
  border: 1px solid var(--line-accent);
  border-radius: 16px;
  text-align: center;
}
.gb-cta h3 {
  font-size: 22px;
  margin-bottom: 16px;
  line-height: 1.5;
  font-weight: 800;
}
.gb-cta h3 .accent {
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.gb-cta p {
  color: var(--ink-soft);
  font-size: 14px;
  margin-bottom: 24px;
}
.gb-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 40px;
  border-radius: 50px;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  color: #000;
  font-family: 'Poppins', 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-decoration: none;
  border: none;
  transition: 0.3s;
}
.gb-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0,240,255,0.4);
  color: #000;
}
.gb-cta-btn::after { content: '→'; font-size: 16px; transition: 0.3s; }
.gb-cta-btn:hover::after { transform: translateX(5px); }

/* ========== 関連記事 ========== */
.gb-related {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.gb-related h2 {
  font-size: 14px;
  margin-bottom: 24px;
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.3em;
  color: var(--accent1);
  font-weight: normal;
}
.gb-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.gb-related-card {
  display: block;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  text-decoration: none;
  color: inherit;
  transition: 0.3s;
}
.gb-related-card:hover { border-color: var(--line-accent); }
.gb-related-card .cat {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--accent1);
  margin-bottom: 8px;
}
.gb-related-card h3 {
  font-size: 14px;
  line-height: 1.55;
  font-weight: 700;
}

/* ========== 空状態 ========== */
.gb-empty {
  padding: 70px 30px;
  text-align: center;
  border: 1px dashed var(--line);
  color: var(--ink-faint);
  border-radius: 12px;
}
.gb-empty p {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 0.3em;
}

/* ========== 近日公開予定セクション ========== */
.upcoming-articles {
  max-width: 900px;
  margin: 0 auto;
  padding: 50px 6% 60px;
}
.upcoming-articles h2 {
  font-family: 'Poppins', 'Noto Sans JP', sans-serif;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 12px;
}
.upcoming-articles .lead {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 2;
  margin-bottom: 36px;
  max-width: 640px;
}
.upcoming-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}
.upcoming-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
  row-gap: 4px;
  padding: 20px 22px;
  background: linear-gradient(145deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: 0.25s;
}
.upcoming-list li:hover {
  border-color: rgba(0,240,255,0.25);
  background: linear-gradient(145deg, rgba(0,240,255,0.04), rgba(0,240,255,0.01));
}
.upcoming-list .status {
  grid-row: 1 / 3;
  align-self: center;
  padding: 4px 10px;
  border-radius: 50px;
  font-family: 'Poppins', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.upcoming-list .status.writing {
  background: rgba(255, 170, 0, 0.15);
  color: #ffaa00;
  border: 1px solid rgba(255, 170, 0, 0.3);
}
.upcoming-list .status.planned {
  background: rgba(255,255,255,0.06);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.upcoming-list h3 {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  align-self: end;
}
.upcoming-list p {
  font-size: 13px;
  color: var(--ink-faint);
  line-height: 1.7;
  align-self: start;
}
.upcoming-cta-note {
  font-size: 13px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
@media (max-width: 600px) {
  .upcoming-articles { padding: 40px 18px 50px; }
  .upcoming-list li { padding: 16px 16px; column-gap: 12px; }
  .upcoming-list h3 { font-size: 14px; }
}

/* ========== フッター ========== */
.gb-footer {
  padding: 50px 6% 40px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--ink-faint);
  background: var(--bg-soft);
  position: relative;
  z-index: 1;
}
.gb-footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

/* ========== レスポンシブ ========== */
@media (max-width: 900px) {
  .gb-hero { grid-template-columns: 1fr; gap: 40px; }
  .gb-hero-img { max-width: 460px; margin: 0 auto; aspect-ratio: 4/3; }
}
@media (max-width: 768px) {
  .gb-header { padding: 14px 18px; gap: 12px; }
  .gb-logo { font-size: 16px; letter-spacing: 0.1em; white-space: nowrap; }
  .gb-nav { gap: 14px; font-size: 10px; letter-spacing: 0.1em; }
  .gb-breadcrumb { padding: 22px 18px 0; font-size: 10px; }
  .gb-hero { padding: 40px 18px 36px; gap: 32px; }
  .gb-hero .tag { font-size: 10px; letter-spacing: 0.15em; padding: 6px 14px; margin-bottom: 20px; }
  .gb-hero h1 { font-size: clamp(36px, 11vw, 56px); line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.01em; }
  .gb-hero p { font-size: 14px; line-height: 1.95; }
  .gb-hero-img { aspect-ratio: 4/3; max-width: 100%; }
  .gb-section { padding: 50px 18px; }
  .gb-section h2.gb-heading { font-size: 24px; margin-bottom: 24px; }
  .gb-cat-card { padding: 30px 24px 60px; min-height: 200px; }
  .gb-cat-card .num { font-size: 44px; margin-bottom: 14px; }
  .gb-cat-card h2 { font-size: 20px; }
  .gb-cat-card p { font-size: 13px; }
  .gb-cat-card .arrow { bottom: 18px; right: 22px; }
  .gb-article-wrap { padding: 24px 18px 60px; }
  .gb-article-title { font-size: 24px; line-height: 1.4; margin-bottom: 22px; }
  .gb-article-meta { gap: 12px; font-size: 10px; letter-spacing: 0.12em; }
  .gb-body { font-size: 15px; }
  .gb-body h2 { font-size: 20px; margin: 40px 0 16px; padding-left: 14px; }
  .gb-body h3 { font-size: 17px; margin: 28px 0 12px; }
  .gb-disclosure { padding: 16px 18px; font-size: 12px; }
  .gb-author { padding: 18px; gap: 14px; }
  .gb-author-img { width: 52px; height: 52px; }
  .gb-toc { padding: 18px 20px; }
  .gb-toc a { font-size: 13px; }
  .gb-cta { padding: 36px 22px; margin: 40px auto 24px; }
  .gb-cta h3 { font-size: 19px; margin-bottom: 12px; }
  .gb-cta p { font-size: 13px; margin-bottom: 18px; }
  .gb-cta-btn { padding: 14px 28px; font-size: 12px; }
  .gb-footer { padding: 36px 18px; flex-direction: column; gap: 8px; }
  .gb-footer-logo { font-size: 18px; }
}
@media (max-width: 380px) {
  .gb-logo { font-size: 14px; letter-spacing: 0.08em; }
  .gb-nav { gap: 10px; font-size: 9px; }
  .gb-hero h1 { font-size: 38px; }
  .gb-section h2.gb-heading { font-size: 28px; margin-bottom: 36px; }
  .gb-article-title { font-size: 24px; }
  .gb-cat-card .num { font-size: 38px; }
}