.download-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.download-toolbar p{color:#768291}.download-toolbar input{width:280px;padding:12px 14px;border:1px solid #dfe5ec;background:#fff}.document-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.document-card{background:#fff;border:1px solid #e7ebf0;display:flex;flex-direction:column}.document-cover{height:145px;background:#eaf0f6;display:grid;place-items:center;overflow:hidden}.document-cover img{width:100%;height:100%;object-fit:cover}.document-cover span{font-size:44px;font-weight:700;color:#d14a50}.document-body{padding:20px}.document-body h2{font-size:19px;margin:0 0 10px}.document-body p{color:#768291;font-size:13px;line-height:1.7;min-height:44px}.document-actions{display:flex;align-items:center;gap:14px;margin-top:18px}.document-actions .btn{padding:10px 14px;font-size:12px}.download-link,.back-link{color:#3f6dba;font-size:13px}.document-detail{max-width:1100px}.document-detail h1{font-size:38px;margin:24px 0 12px}.document-detail-actions{margin-bottom:24px}.article-content{background:#fff;padding:35px;line-height:1.9;border:1px solid #e7ebf0;font-size:16px}.article-content img{max-width:100%}.pdf-preview{display:block;width:100%;height:min(82vh,980px);min-height:720px;border:1px solid #dfe5ec;background:#fff}.document-detail h2{margin-top:35px}@media(max-width:900px){.document-grid{grid-template-columns:repeat(2,1fr)}.pdf-preview{height:72vh;min-height:620px}}@media(max-width:560px){.download-toolbar{display:block}.download-toolbar input{width:100%}.document-grid{grid-template-columns:1fr}.document-detail h1{font-size:30px}.article-content{padding:24px}.pdf-preview{height:65vh;min-height:520px}}