/* ============================================================
   Whitepaper · Long-form scholarly article typography
   Used by: hospital-marketing, imc, voucher, ad-search, ad-display, ad-youtube
   ============================================================ */

.wp-hero {
  padding: clamp(72px, 10vw, 112px) 0 clamp(40px, 5vw, 56px);
  background: radial-gradient(ellipse 60% 55% at 50% 0%, rgba(228,0,43,0.05) 0%, transparent 70%), var(--paper);
  border-bottom: 1px solid var(--rule);
}
.wp-hero .wrap { max-width: 900px; text-align: center; }
.wp-kicker {
  display: inline-block; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.28em; color: var(--insa-red); font-weight: 700; text-transform: uppercase;
  padding: 6px 14px; background: rgba(228,0,43,0.08); border-radius: 999px; margin-bottom: 24px;
}
.wp-hero h1 {
  font-size: clamp(34px, 4.8vw, 56px); font-weight: 800; line-height: 1.15;
  letter-spacing: -0.028em; color: var(--ink); margin: 0; text-wrap: balance;
}
.wp-hero h1 em { font-style: normal; color: var(--insa-red); font-weight: 800; }
.wp-hero .subtitle {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.06em;
  color: var(--muted); font-weight: 500; margin-top: 20px;
}
.wp-hero .meta {
  display: flex; justify-content: center; gap: 24px; flex-wrap: wrap;
  margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--rule);
  font-size: 13px; color: var(--ink-3);
}
.wp-hero .meta strong { color: var(--ink); font-weight: 700; }
.wp-hero .meta .dot { color: var(--insa-grey-30); }

.wp-abstract {
  max-width: 900px; margin: 40px auto 0;
  padding: 32px 40px; background: var(--paper-2);
  border-left: 3px solid var(--insa-red);
}
.wp-abstract .lbl {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--insa-red); font-weight: 700; text-transform: uppercase;
  margin-bottom: 12px;
}
.wp-abstract p {
  font-size: 15.5px; line-height: 1.85; color: var(--ink-2); margin: 0;
}
.wp-abstract p + p { margin-top: 14px; }
.wp-abstract strong { color: var(--ink); font-weight: 700; }

.wp-body {
  max-width: 800px; margin: 0 auto; padding: clamp(48px, 6vw, 72px) var(--gutter);
  font-size: 16.5px; line-height: 1.85; color: var(--ink-2);
}
.wp-body h2 {
  font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: -0.02em;
  color: var(--ink); margin: 56px 0 4px; line-height: 1.2;
  padding-bottom: 12px; border-bottom: 1.5px solid var(--ink);
  scroll-margin-top: 100px;
}
.wp-body h2 .sec-num {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  color: var(--insa-red); font-weight: 700; display: block; margin-bottom: 6px;
  text-transform: uppercase;
}

/* ==== EN 페이지용 · .wp-article / .wp-section 구조 (KO는 .wp-body 사용) ==== */
.wp-article {
  max-width: 860px; margin: 0 auto;
  padding: clamp(48px, 6vw, 88px) 0;
}
.wp-article .wrap { max-width: 860px; padding: 0 clamp(20px, 4vw, 40px); }
.wp-hero {
  padding-bottom: 32px; margin-bottom: 48px;
  border-bottom: 1px solid var(--rule);
}
.wp-meta-top {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--muted); text-transform: uppercase; font-weight: 600;
  margin-bottom: 24px;
}
.wp-meta-top .wp-vol {
  padding: 4px 10px; background: var(--insa-red); color: #fff;
  border-radius: 2px; font-weight: 700;
}
.wp-hero h1 {
  font-size: clamp(28px, 4vw, 48px); font-weight: 800;
  line-height: 1.15; letter-spacing: -0.025em; color: var(--ink);
  margin: 0 0 20px; text-wrap: balance;
}
.wp-hero h1 em {
  font-style: normal; color: var(--insa-red); font-weight: 800;
}
.wp-hero .wp-subtitle {
  font-size: 17px; color: var(--ink-2); line-height: 1.65;
  margin: 0 0 28px; max-width: 720px;
}
.wp-author-meta {
  padding-top: 20px; border-top: 1px solid var(--rule);
}
.wpa-name { font-size: 14px; color: var(--ink); }
.wpa-name strong { font-weight: 700; }
.wpa-name span { color: var(--muted); font-weight: 500; }
.wpa-affil {
  font-family: var(--mono); font-size: 11.5px; color: var(--muted);
  letter-spacing: 0.04em; margin-top: 4px; line-height: 1.65;
}

/* Abstract block */
.wp-abstract {
  max-width: 900px;
  background: var(--paper-2); border: 1px solid var(--rule);
  border-left: 4px solid var(--insa-red);
  padding: 28px 32px; margin: 32px auto 48px;
}
.wp-abstract h2 {
  font-size: 13px; font-family: var(--mono); letter-spacing: 0.2em;
  color: var(--insa-red); text-transform: uppercase; font-weight: 700;
  margin: 0 0 14px; padding: 0; border: 0;
}
.wp-abstract p {
  font-size: 15px; color: var(--ink-2); line-height: 1.75;
  margin: 0 0 12px;
}
.wp-abstract p:last-child { margin-bottom: 0; }
.wp-abstract strong { color: var(--ink); font-weight: 700; }
.wp-abstract em { font-style: italic; color: var(--ink-2); }

/* Section (EN 구조) */
.wp-section {
  margin: 56px 0;
  scroll-margin-top: 100px;
}
.wp-section h2 {
  font-size: clamp(22px, 2.6vw, 30px); font-weight: 800;
  letter-spacing: -0.02em; color: var(--ink);
  margin: 0 0 18px; padding-bottom: 14px;
  border-bottom: 1.5px solid var(--ink);
  line-height: 1.25;
}
.wp-section h2 .sec-num {
  display: block;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  color: var(--insa-red); font-weight: 700; text-transform: uppercase;
  margin-bottom: 8px;
}
.wp-section h3 {
  font-size: 18px; font-weight: 700; letter-spacing: -0.01em; color: var(--ink);
  margin: 32px 0 10px;
}
.wp-section p {
  font-size: 15px; color: var(--ink-2); line-height: 1.75; margin: 14px 0;
}
.wp-section p strong { color: var(--ink); font-weight: 700; }
.wp-section p em { color: var(--ink-2); font-style: italic; }
.wp-section ul, .wp-section ol {
  padding-left: 22px; margin: 14px 0;
  font-size: 15px; color: var(--ink-2); line-height: 1.7;
}
.wp-section li { margin-bottom: 8px; padding-left: 4px; }
.wp-section li::marker { color: var(--insa-red); font-weight: 700; }
.wp-section li strong { color: var(--ink); font-weight: 700; }
.wp-section a {
  color: var(--insa-red);
  border-bottom: 1px solid rgba(228,0,43,0.4);
  transition: background .15s, border-color .15s;
}
.wp-section a:hover { background: rgba(228,0,43,0.06); border-bottom-color: var(--insa-red); }

/* Table for EN wp-section */
.wp-table-wrap { overflow-x: auto; margin: 20px 0; }
.wp-table {
  width: 100%; border-collapse: collapse; font-size: 13.5px;
}
.wp-table caption {
  text-align: left; font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.06em; color: var(--muted); font-weight: 700;
  padding-bottom: 10px;
}
.wp-table thead th {
  padding: 12px 14px; background: var(--paper-2); color: var(--ink);
  font-weight: 700; text-align: left; border: 1px solid var(--rule);
  border-right-color: transparent;
}
.wp-table thead th:last-child { border-right: 1px solid var(--rule); }
.wp-table tbody td {
  padding: 11px 14px; border: 1px solid var(--rule);
  color: var(--ink-2);
}

/* Author-inline (Kim Hun quote block) */
.author-inline {
  background: var(--paper); border-left: 3px solid var(--insa-red);
  padding: 20px 26px; margin: 24px 0;
}
.author-inline p {
  margin: 0 0 8px; font-size: 15px; color: var(--ink);
  line-height: 1.65; font-style: italic;
}
.author-inline cite {
  font-family: var(--mono); font-size: 11.5px; color: var(--muted);
  letter-spacing: 0.06em; font-style: normal; font-weight: 600;
}

/* References */
.wp-refs h2 { border-bottom: 1.5px solid var(--ink); }
.wp-refs ol { font-size: 13.5px; line-height: 1.75; color: var(--ink-2); }
.wp-refs ol li { margin-bottom: 10px; }
.wp-refs em { font-style: italic; color: var(--ink); }

/* Owned network */
.wp-network { background: var(--paper-2); padding: 32px 30px; margin: 48px 0 0; }
.wp-network h2 { border-bottom: 1.5px solid var(--ink); }
.wp-network-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px 24px;
}
.wp-network-list li {
  font-size: 14px; color: var(--ink-2);
  padding: 6px 0; border-bottom: 1px dotted var(--rule);
}
.wp-network-list a {
  color: var(--ink); font-weight: 700;
  border-bottom: 1px solid transparent;
}
.wp-network-list a:hover { color: var(--insa-red); border-bottom-color: var(--insa-red); }

@media (max-width: 640px) {
  .wp-abstract { padding: 22px 20px; }
  .wp-network { padding: 24px 20px; }
}
.wp-body h3 {
  font-size: 20px; font-weight: 700; letter-spacing: -0.015em; color: var(--ink);
  margin: 36px 0 8px;
}
.wp-body p { margin: 16px 0; }
.wp-body p strong { color: var(--ink); font-weight: 700; }
.wp-body a {
  color: var(--insa-red);
  border-bottom: 1px solid rgba(228,0,43,0.4);
  padding-bottom: 1px; transition: background .2s, border-color .2s;
}
.wp-body a:hover { background: rgba(228,0,43,0.06); border-bottom-color: var(--insa-red); }
.wp-body ul, .wp-body ol { padding-left: 22px; margin: 16px 0; }
.wp-body li { margin-bottom: 8px; padding-left: 6px; }
.wp-body li::marker { color: var(--insa-red); font-weight: 700; }

.fn {
  font-size: 11px; vertical-align: super; line-height: 0;
  color: var(--insa-red); font-weight: 700;
  padding: 0 2px; text-decoration: none;
}
.fn:hover { background: rgba(228,0,43,0.1); }

.wp-body blockquote {
  margin: 32px 0; padding: 24px 28px;
  background: var(--paper-2); border-left: 3px solid var(--insa-red);
  font-size: 17px; line-height: 1.7; color: var(--ink);
  font-weight: 500; letter-spacing: -0.005em;
}
.wp-body blockquote cite {
  display: block; margin-top: 12px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted); font-style: normal; font-weight: 600;
}

.wp-body table {
  width: 100%; border-collapse: collapse; margin: 28px 0;
  font-size: 14px; background: var(--paper); border: 1px solid var(--rule);
}
.wp-body table caption {
  caption-side: top; text-align: left; padding: 12px 0;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  color: var(--muted); text-transform: uppercase; font-weight: 600;
}
.wp-body table thead th {
  background: var(--insa-black); color: #fff; padding: 12px 16px;
  text-align: left; font-weight: 700; font-size: 12.5px;
  border-right: 1px solid rgba(255,255,255,0.1);
}
.wp-body table thead th:last-child { border-right: 0; }
.wp-body table tbody td, .wp-body table tbody th {
  padding: 12px 16px; border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule); text-align: left; vertical-align: top;
  line-height: 1.55; font-weight: normal;
}
.wp-body table tbody th { background: var(--paper-2); font-weight: 700; color: var(--ink); }
.wp-body table tbody td:last-child, .wp-body table tbody th:last-child { border-right: 0; }
.wp-body table tbody td.hi { color: var(--insa-red); font-weight: 600; }

.author-inline {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; background: var(--paper-2);
  border: 1px solid var(--rule); margin: 24px 0;
}
.author-inline .av {
  width: 48px; height: 48px; background: var(--insa-black); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 14px;
  flex-shrink: 0;
}
.author-inline .txt { flex: 1; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.author-inline .txt strong { color: var(--ink); }

.wp-refs { max-width: 800px; margin: 40px auto 0; padding: 0 var(--gutter); }
.wp-refs h2 {
  font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: -0.02em;
  color: var(--ink); margin: 0 0 24px; padding-bottom: 12px; border-bottom: 1.5px solid var(--ink);
}
.wp-refs ol { list-style: none; counter-reset: ref; padding: 0; margin: 0; }
.wp-refs ol li {
  counter-increment: ref;
  position: relative; padding: 16px 0 16px 44px;
  border-bottom: 1px solid var(--rule-2);
  font-size: 13.5px; line-height: 1.65; color: var(--ink-2);
  scroll-margin-top: 100px;
}
.wp-refs ol li::before {
  content: '[' counter(ref) ']';
  position: absolute; left: 0; top: 16px;
  font-family: var(--mono); font-size: 12px;
  color: var(--insa-red); font-weight: 700;
}
.wp-refs ol li a { color: var(--insa-red); }
.wp-refs ol li strong { color: var(--ink); font-weight: 700; }
.wp-refs ol li .type {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
  color: var(--muted); text-transform: uppercase; font-weight: 600;
  margin-left: 8px;
}

.wp-network {
  max-width: 1200px; margin: clamp(48px, 6vw, 72px) auto 0;
  padding: clamp(48px, 6vw, 72px) var(--gutter);
  background: var(--paper-2); border-top: 1px solid var(--rule);
}
.wp-network h2 {
  font-size: clamp(24px, 2.8vw, 32px); font-weight: 800; letter-spacing: -0.02em;
  color: var(--ink); margin: 0 0 8px;
}
.wp-network .sec-lbl {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--insa-red); font-weight: 700; text-transform: uppercase; margin-bottom: 12px;
}
.wp-network .desc { color: var(--ink-3); font-size: 14.5px; margin: 8px 0 32px; line-height: 1.65; max-width: 60ch; }
.net-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px;
}
.net-card {
  background: var(--paper); border: 1px solid var(--rule);
  padding: 24px 24px; text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.net-card:hover {
  border-color: var(--insa-red); transform: translateY(-2px);
  box-shadow: 0 8px 24px -12px rgba(228,0,43,0.2);
}
.net-card .dom {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em;
  color: var(--insa-red); font-weight: 700; text-transform: uppercase;
}
.net-card h4 {
  font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; margin: 0;
}
.net-card p { font-size: 13px; color: var(--ink-3); line-height: 1.55; margin: 0; }
.net-card .visit {
  margin-top: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  color: var(--muted); text-transform: uppercase; font-weight: 600;
}
.net-card:hover .visit { color: var(--insa-red); }

.wp-section-head {
  max-width: 900px; margin: clamp(48px, 6vw, 72px) auto 32px;
  padding: 0 var(--gutter);
}
.wp-section-head h2 {
  font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; letter-spacing: -0.02em;
  color: var(--ink); margin: 0 0 12px; padding-bottom: 12px; border-bottom: 1.5px solid var(--ink);
}
.wp-section-head .sec-num {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  color: var(--insa-red); font-weight: 700; text-transform: uppercase; margin-bottom: 6px;
  display: block;
}
.wp-faq { max-width: 900px; margin: 0 auto; padding: 0 var(--gutter); }
.wp-faq details {
  border-bottom: 1px solid var(--rule); padding: 20px 4px;
}
.wp-faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: baseline; gap: 16px;
  font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em;
}
.wp-faq summary::-webkit-details-marker { display: none; }
.wp-faq summary .q { font-family: var(--mono); font-size: 13px; color: var(--insa-red); font-weight: 700; flex-shrink: 0; }
.wp-faq summary .plus { margin-left: auto; font-family: var(--mono); font-size: 18px; color: var(--muted); transition: transform .3s, color .3s; }
.wp-faq details[open] summary .plus { transform: rotate(45deg); color: var(--insa-red); }
.wp-faq .a { padding: 16px 0 4px 48px; font-size: 14.5px; line-height: 1.75; color: var(--ink-2); }
.wp-faq .a a { color: var(--insa-red); }

@media (max-width: 700px) {
  .wp-abstract { padding: 24px; }
  .wp-body { padding: 40px 20px; }
  .author-inline { flex-direction: column; }
}