/* ====== Articles Hub & Article pages ====== */
body.articles-page { background: #fafbfd; }

/* 아티클 허브 hero (products와 유사하되 구분) */
.articles-hero {
  padding: calc(var(--sec-y) + 60px) 0 var(--sec-y-sm);
  background: linear-gradient(180deg, #fff 0%, #fafbfd 100%);
  position: relative;
  overflow: hidden;
}
.articles-hero::before {
  content: '';
  position: absolute; top: 18%; right: -10%;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,165,116,0.13), transparent 65%);
  pointer-events: none;
}
.articles-hero .container { position: relative; }
.articles-title {
  font-size: clamp(38px, 5.6vw, 72px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 18px 0 24px;
}
.articles-title em {
  color: var(--gold);
  font-family: 'Noto Serif KR', serif;
  font-style: italic;
  padding: 0 0.04em 0.1em;
  display: inline-block;
  line-height: 1.2;
}
.articles-lead {
  font-size: 17px; line-height: 1.8;
  color: var(--ink-2);
  max-width: 720px;
  margin-bottom: 40px;
}
.articles-filter {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.af {
  padding: 11px 20px;
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 999px;
  font-family: 'Pretendard', sans-serif;
  font-size: 14px; font-weight: 700;
  color: var(--muted);
  transition: all 0.25s var(--easing);
  cursor: pointer;
}
.af:hover { color: var(--ink); border-color: var(--ink); }
.af.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.af .cnt {
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  color: var(--muted);
  font-size: 11px; font-weight: 700;
}
.af.active .cnt { background: rgba(255,255,255,0.22); color: #fff; }

/* 아티클 그리드 */
.articles-list { padding: 0 0 var(--sec-y); }
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 8px;
}
.article-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.35s var(--easing), border-color 0.25s, box-shadow 0.35s;
  text-decoration: none;
  color: inherit;
  opacity: 0;
  transform: translateY(20px);
  animation: articleReveal 0.7s var(--easing) var(--delay, 0ms) forwards;
}
@keyframes articleReveal { to { opacity: 1; transform: translateY(0); } }
.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--brand, var(--gold));
  box-shadow: 0 22px 40px -18px color-mix(in srgb, var(--brand, #111) 28%, transparent);
}
.article-card[data-cat="lab"] { --brand: var(--lab); }
.article-card[data-cat="cc"]  { --brand: var(--cc); }
.article-card[data-cat="db"]  { --brand: var(--db); }
.article-card[data-cat="guide"] { --brand: var(--ink); }
.article-card.hide { display: none; }

.ac-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--brand, var(--ink)), color-mix(in srgb, var(--brand, var(--ink)) 55%, #0a1328));
  position: relative;
  overflow: hidden;
}
.ac-thumb::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 20%, rgba(255,255,255,0.12), transparent 55%);
}
.ac-thumb .ac-tag {
  position: absolute; top: 16px; left: 16px;
  font-family: 'Inter', sans-serif;
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.92);
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  text-transform: uppercase;
}
.ac-thumb svg.ac-art {
  position: absolute; inset: 0; margin: auto;
  width: 55%; height: 55%;
  opacity: 0.9;
}
.ac-body { padding: 26px 24px 24px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.ac-meta {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.ac-meta .ac-dot {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--muted);
}
.ac-body h3 {
  font-size: 19px; font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  flex: 1;
}
.ac-body p.ac-excerpt {
  font-size: 14px; line-height: 1.7;
  color: var(--ink-2);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ac-read {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 4px;
  font-size: 13px; font-weight: 700;
  color: var(--brand, var(--gold));
  letter-spacing: 0.02em;
}
.ac-read em { font-style: normal; transition: transform 0.3s; }
.article-card:hover .ac-read em { transform: translateX(4px); }

@media (max-width: 1100px) { .articles-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; } }
@media (max-width: 640px) {
  .articles-grid { grid-template-columns: 1fr; gap: 18px; }
  .articles-title { font-size: clamp(30px, 8vw, 48px); }
  .articles-lead { font-size: 15px; margin-bottom: 30px; }
  .af { padding: 9px 16px; font-size: 12.5px; }
}

/* ====== 개별 아티클 페이지 ====== */
.article-page { padding: calc(var(--sec-y) + 40px) 0 var(--sec-y); background: #fff; }
.article-wrap { max-width: 760px; margin: 0 auto; padding: 0 clamp(20px, 3vw, 32px); }
.article-crumb {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.article-crumb a { color: inherit; }
.article-crumb a:hover { color: var(--gold); }

.article-head { margin-bottom: 40px; }
.article-head .tag {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 10.5px; font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--gold-ink);
  padding: 4px 12px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  margin-bottom: 16px;
}
.article-head h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.3;
  margin: 0 0 20px;
}
.article-head .meta {
  display: flex; align-items: center; gap: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: var(--muted);
}
.article-head .meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }

.article-body {
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
  word-break: keep-all;
}
.article-body .lead {
  font-size: 19px; font-weight: 500;
  color: var(--ink-2);
  line-height: 1.7;
  padding: 20px 24px;
  border-left: 3px solid var(--gold);
  background: color-mix(in srgb, var(--gold) 6%, #fff);
  margin: 0 0 36px;
}
.article-body h2 {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 48px 0 16px;
  color: var(--ink);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.article-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { padding-left: 24px; margin: 0 0 20px; }
.article-body li { margin-bottom: 8px; }
.article-body b, .article-body strong { color: var(--ink); font-weight: 700; }
.article-body a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.article-body blockquote {
  margin: 28px 0;
  padding: 18px 24px;
  border-left: 3px solid var(--gold);
  color: var(--ink-2);
  font-style: italic;
  background: #fafbfd;
}
.article-body table {
  width: 100%; border-collapse: collapse;
  margin: 20px 0;
  font-size: 14.5px;
}
.article-body th, .article-body td {
  padding: 10px 14px;
  border: 1px solid var(--line);
  text-align: left; vertical-align: top;
}
.article-body th { background: #f3f5f9; font-weight: 700; }
.article-body .cta-box {
  margin: 48px 0 16px;
  padding: 32px;
  background: linear-gradient(135deg, #0B1A33, #1a2947);
  color: #fff;
  border-radius: 18px;
  text-align: center;
}
.article-body .cta-box h4 {
  font-size: 22px; font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.015em;
}
.article-body .cta-box p {
  color: rgba(255,255,255,0.75);
  margin: 0 0 18px;
}
.article-body .cta-box .btn { background: var(--gold); color: var(--bg-dark); }

/* 관련 아티클 */
.article-related {
  max-width: 1080px; margin: 0 auto;
  padding: 60px clamp(20px, 3vw, 32px) 0;
}
.article-related h2 {
  font-size: 22px; font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}
.article-related .articles-grid { margin-top: 0; }

.aa-profile-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--gold, #D4A574);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.aa-profile-link:hover { text-decoration: underline; }

/* 자동 생성 목차 */
.article-toc {
  margin: 32px 0 36px;
  padding: 22px 26px 20px;
  background: #fafaf7;
  border: 1px solid rgba(0,0,0,0.08);
  border-left: 3px solid #D4A574;
  border-radius: 8px;
}
.atoc-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #8a6a45;
  margin-bottom: 10px;
}
.atoc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc;
}
.atoc-list li {
  position: relative;
  padding: 5px 0 5px 28px;
  counter-increment: toc;
  font-size: 14.5px;
  line-height: 1.55;
}
.atoc-list li::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 5px;
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  font-weight: 700;
  color: #D4A574;
  letter-spacing: 0.02em;
}
.atoc-list a {
  color: rgba(0,0,0,0.78);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color .15s, border-color .15s;
}
.atoc-list a:hover {
  color: #0B1A33;
  border-bottom-color: #D4A574;
}
@media (max-width: 640px) {
  .article-toc { padding: 18px 18px 14px; }
  .atoc-list li { font-size: 13.5px; }
}

/* 본문 내 클러스터 카드 (ar-grid) */
.article-body .article-related {
  padding: 40px 0 0;
  margin: 48px 0 0;
  border-top: 1px solid rgba(0,0,0,0.08);
}
.article-body .article-related h2 {
  font-size: 19px;
  margin: 0 0 18px;
}
.ar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.ar-card {
  position: relative;
  display: block;
  padding: 18px 18px 22px;
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: 12px;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.ar-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold, #D4A574);
  box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}
.ar-card .ar-arrow {
  position: absolute;
  top: 14px; right: 16px;
  font-size: 16px;
  color: var(--gold, #D4A574);
  opacity: .6;
}
.ar-card h3 {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  line-height: 1.4;
  padding-right: 24px;
}
.ar-card p {
  font-size: 13px;
  color: rgba(0,0,0,0.62);
  margin: 0;
  line-height: 1.5;
}
@media (max-width: 760px) {
  .ar-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .article-head h1 { font-size: clamp(24px, 6vw, 32px); }
  .article-body { font-size: 15.5px; }
  .article-body .lead { font-size: 16.5px; padding: 16px 18px; }
  .article-body h2 { font-size: 20px; margin-top: 36px; }
  .article-body h3 { font-size: 17px; }
  .article-body .cta-box { padding: 24px 20px; }
}

/* ====== E-E-A-T Signals: Author · Verification · References ====== */
.article-author {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px 22px;
  margin: 0 0 32px;
  background: linear-gradient(180deg, #fafbfd, #f3f5f9);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 14px;
}
.aa-avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0B1A33, #1a2947);
  color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Inter', sans-serif;
  font-weight: 800; font-size: 18px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
  box-shadow: 0 4px 10px -2px rgba(11,26,51,0.25);
}
.aa-info { flex: 1; min-width: 0; }
.aa-name {
  font-size: 15px; font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 2px;
  display: flex; align-items: center; gap: 6px;
  flex-wrap: wrap;
}
.aa-verified {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px;
  background: #10b981;
  color: #fff;
  border-radius: 50%;
  font-size: 10px; font-weight: 900;
  line-height: 1;
}
.aa-role {
  font-size: 12.5px; font-weight: 600;
  color: var(--gold-ink, #8a5e2e);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}
.aa-bio {
  font-size: 13px; line-height: 1.65;
  color: var(--muted);
  margin: 0;
  word-break: keep-all;
}
.article-updated {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--muted);
  font-family: 'Inter', 'Pretendard', sans-serif;
  letter-spacing: 0.01em;
}
.article-updated::before {
  content: '✓';
  color: #10b981;
  font-weight: 900;
}

.article-refs {
  margin: 48px 0 16px;
  padding: 24px 26px;
  background: #fafbfd;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.article-refs h2 {
  font-size: 16px !important;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 14px !important;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.article-refs ul {
  margin: 0 0 12px;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-2);
}
.article-refs li { margin-bottom: 4px; }
.article-refs li b { color: var(--ink); font-weight: 700; }
.article-refs li a { color: var(--gold); text-decoration: underline; text-underline-offset: 2px; }
.article-refs .aa-note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  font-style: italic;
}

@media (max-width: 640px) {
  .article-author { padding: 16px; gap: 12px; }
  .aa-avatar { width: 44px; height: 44px; font-size: 15px; }
  .aa-name { font-size: 14px; }
  .aa-bio { font-size: 12.5px; }
  .article-refs { padding: 18px 20px; }
}