.dpr-content { padding: 74px 0 110px; background: #f7fafb; }
.dpr-layout { display: grid; grid-template-columns: 245px minmax(0, 1fr); gap: 34px; align-items: start; }
.dpr-nav { position: sticky; top: 98px; padding: 14px; border: 1px solid #dbe6ec; border-radius: 20px; background: #fff; box-shadow: 0 16px 38px rgba(16,42,67,.08); }
.dpr-nav strong { display: block; padding: 12px 13px 15px; border-bottom: 1px solid #dbe6ec; margin-bottom: 7px; font-size: 13px; }
.dpr-nav a { position: relative; display: block; padding: 11px 12px 11px 36px; border-radius: 11px; color: #607086; font-size: 12px; font-weight: 700; text-decoration: none; transition: .2s ease; }
.dpr-nav a:before { content: ''; position: absolute; left: 14px; top: 50%; width: 8px; height: 8px; border: 2px solid #a7b8c4; border-radius: 50%; transform: translateY(-50%); }
.dpr-nav a:hover { color: #1475a7; background: #e8f5fa; }
.dpr-nav a:hover:before { border-color: #26b99a; background: #26b99a; box-shadow: 0 0 0 4px rgba(38,185,154,.13); }
.dpr-main-column { min-width: 0; }
.dpr-library { padding: 0 0 72px; }
.dpr-pdf-section { padding-top: 8px; scroll-margin-top: 100px; }
.dpr-pdf-list { overflow: hidden; border: 1px solid #dbe6ec; border-radius: 22px; background: #fff; box-shadow: 0 12px 34px rgba(16,42,67,.07); }
.dpr-pdf-link { display: grid; grid-template-columns: 48px 1fr auto; gap: 18px; align-items: center; padding: 22px 26px; color: #102a43; text-decoration: none; border-bottom: 1px solid #dbe6ec; transition: .2s ease; scroll-margin-top: 110px; }
.dpr-pdf-link:last-child { border-bottom: 0; }
.dpr-pdf-link:hover { color: #1475a7; background: #f4fafc; padding-left: 32px; }
.dpr-pdf-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; color: #1475a7; background: #e8f5fa; }
.dpr-pdf-icon svg { width: 23px; height: 23px; }
.dpr-pdf-copy strong { display: block; font-size: 16px; }
.dpr-pdf-copy span { display: block; margin-top: 4px; color: #607086; font-size: 12px; }
.dpr-pdf-open { color: #1475a7; font-size: 12px; font-weight: 800; }
@media (max-width: 900px) {
  .dpr-layout { grid-template-columns: 1fr; }
  .dpr-nav { position: sticky; top: 72px; z-index: 20; display: flex; gap: 4px; overflow-x: auto; border-radius: 14px; }
  .dpr-nav strong { display: none; }
  .dpr-nav a { flex: 0 0 auto; padding: 10px 13px; white-space: nowrap; }
  .dpr-nav a:before { display: none; }
}
@media (max-width: 560px) {
  .dpr-content { padding: 32px 0 72px; }
  .dpr-layout { gap: 24px; }
  .dpr-pdf-link { grid-template-columns: 40px 1fr; gap: 12px; padding: 17px 14px; }
  .dpr-pdf-link:hover { padding-left: 18px; }
  .dpr-pdf-icon { width: 40px; height: 40px; }
  .dpr-pdf-copy strong { font-size: 14px; }
  .dpr-pdf-copy span { font-size: 11px; }
  .dpr-pdf-open { display: none; }
}