/* ─────────────────────────────────────────────────────────────
 * Deal List — 데이터 안내 (about/) 전용 스타일
 * ───────────────────────────────────────────────────────────── */

.container {
  max-width: 880px; margin: 0 auto;
  padding: 40px 40px 60px;
}

/* DCM/ECM 탭 (발행정보 페이지와 동일 폴더탭 스타일) */
.about-tabs {
  display:flex; gap:6px; padding:14px 40px 0;
  background:var(--surface); border-bottom:1px solid var(--border);
}
.about-tabs .ecm-tab {
  font:inherit; font-size:14px; font-weight:600;
  padding:9px 22px; cursor:pointer;
  background:transparent; color:var(--muted);
  border:1px solid transparent; border-bottom:none;
  border-radius:8px 8px 0 0; margin-bottom:-1px;
}
.about-tabs .ecm-tab:hover { color:var(--text); }
.about-tabs .ecm-tab.active {
  background:var(--bg); color:var(--accent);
  border-color:var(--border); border-bottom:1px solid var(--bg);
}
.about-panel[hidden] { display:none; }
@media (max-width:720px){ .about-tabs{ padding:14px 16px 0; } }

/* TOC */
.toc {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 28px;
}
.toc-title {
  font-size: 16px; font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text); margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.toc-title::before {
  content: ''; width: 4px; height: 16px;
  background: var(--accent); border-radius: 2px;
}
.toc-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px;
  font-size: 13px;
}
.toc-list a {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 4px; color: var(--text-2);
  text-decoration: none; border-radius: 5px;
}
.toc-list a:hover { background: var(--surface); color: var(--accent); }
.toc-list a .num {
  width: 20px; height: 20px; border-radius: 4px;
  background: var(--surface); border: 1px solid var(--border);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; color: var(--muted);
  flex-shrink: 0;
}

/* Section */
.about-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  margin-bottom: 18px;
}
.about-section > h2 {
  margin: 0 0 8px; font-size: 18px; font-weight: 700;
  letter-spacing: -0.02em; color: var(--text);
  display: flex; align-items: center; gap: 10px;
}
.about-section > h2::before {
  content: ''; width: 4px; height: 18px;
  background: var(--accent); border-radius: 2px;
}
.about-section > .section-meta {
  font-size: 12px; color: var(--muted);
  margin-bottom: 18px; padding-left: 14px;
}

/* Q&A */
.qa {
  padding: 18px 0;
  border-top: 1px solid var(--border-soft);
}
.qa:first-of-type { border-top: 0; padding-top: 0; }
.qa h3 {
  margin: 0 0 8px; font-size: 15px; font-weight: 700;
  letter-spacing: -0.015em; color: var(--text);
  display: flex; gap: 8px; align-items: flex-start;
}
.qa h3::before {
  content: 'Q'; flex-shrink: 0;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; margin-top: 1px;
}
.qa .a {
  margin: 0 0 0 30px; font-size: 13.5px; line-height: 1.7;
  color: var(--text-2);
}
.qa .a strong { color: var(--text); font-weight: 600; }
.qa .a ol, .qa .a ul {
  margin: 10px 0; padding-left: 22px;
}
.qa .a li { padding: 4px 0; }
.qa .a li small {
  display: block; color: var(--muted); font-size: 12px; margin-top: 3px;
}
.qa .a .formula {
  display: block;
  padding: 12px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  margin: 10px 0;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 12.5px;
  color: var(--text);
}

/* Disclaimer */
.disclaimer {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 28px;
}
.disclaimer h3 {
  margin: 0 0 8px; font-size: 13px; font-weight: 700;
  color: var(--text); letter-spacing: 0.04em; text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}
.disclaimer h3 svg { width: 14px; height: 14px; }
.disclaimer p {
  margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--muted);
}

/* Mobile */
@media (max-width: 720px) {
  .container { padding: 24px 16px 40px; }
  .toc { padding: 14px 16px; }
  .toc-list { grid-template-columns: 1fr; }
  .about-section { padding: 20px 18px; }
  .qa .a { margin-left: 0; }
}