:root{--g1:#5C258D;--g2:#4389A2;--ink:#1f2433;--mut:#6b7280;--bg:#f6f7fb;--card:#fff;--line:#e7e8ef}
*{box-sizing:border-box;font-family:'Cairo',system-ui,sans-serif}
html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.85}
a{color:inherit;text-decoration:none}code{font-family:ui-monospace,Menlo,monospace;direction:ltr;unicode-bidi:bidi-override}
.muted{color:var(--mut)}
.site-nav{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;position:sticky;top:0;z-index:20}
.site-nav .brand{font-weight:800;font-size:1.05rem;display:flex;gap:9px;align-items:center}
.site-nav nav a{margin-inline-start:18px;opacity:.92;font-weight:600}.site-nav nav a:hover{opacity:1}
.hero{background:linear-gradient(135deg,rgba(92,37,141,.93),rgba(67,137,162,.93)),url('https://clp.uod.ac/2nd/bg.jpg') center/cover fixed;color:#fff;text-align:center;padding:54px 18px 60px}
.hero .logo{height:74px;margin-bottom:14px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.3))}
.hero h1{font-size:clamp(1.4rem,3.3vw,2.3rem);margin:.2em auto;max-width:1000px;font-weight:900}
.hero .sub{max-width:820px;margin:0 auto 26px;opacity:.95;font-size:1.02rem}
.search-wrap{max-width:760px;margin:0 auto;background:#fff;border-radius:16px;display:flex;align-items:center;padding:6px 18px;box-shadow:0 18px 50px rgba(0,0,0,.28)}
.search-wrap i{color:var(--g1);font-size:1.1rem}
.search-wrap input{flex:1;border:0;outline:0;background:transparent;font-size:1.05rem;padding:16px 12px;color:var(--ink)}
.stats{margin-top:22px;display:flex;gap:26px;justify-content:center;flex-wrap:wrap;font-size:.95rem;opacity:.95}
.stats b{font-size:1.25rem;display:block}
.hint{margin-top:14px;font-size:.9rem;opacity:.9}
.wrap{max-width:1180px;margin:0 auto;padding:34px 20px 10px}
.toc{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.toc a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:600;font-size:.92rem}
.toc a:hover{border-color:var(--g2);color:var(--g1)}.toc b{color:var(--g1);margin-inline-start:6px}
.track{margin-bottom:42px}
.track h2{display:flex;align-items:center;gap:12px;font-size:1.3rem;border-bottom:3px solid var(--line);padding-bottom:10px}
.track .tn{background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;border-radius:10px;padding:3px 12px;font-size:1rem}
.track .cnt{margin-inline-start:auto;font-size:.85rem;color:var(--mut);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:16px;margin-top:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(67,137,162,.16);border-color:var(--g2)}
.card-h{display:flex;gap:10px;align-items:flex-start}
.card .num{background:#eef;color:var(--g1);font-weight:800;border-radius:8px;padding:2px 9px;font-size:.85rem;flex-shrink:0}
.card .ttl{font-weight:700;font-size:1.02rem;line-height:1.6}
.card .ttl:hover{color:var(--g1)}
.card-au{color:var(--mut);font-size:.88rem;margin:10px 0 14px;flex:1}
.card-f{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:11px;font-size:.85rem}
.card-f code{color:var(--mut);font-size:.78rem}.card-f .sp{flex:1}
.card-f .mini{font-weight:700;color:var(--g2)}.card-f .mini:hover{color:var(--g1)}
.results{display:flex;flex-direction:column;gap:12px}
.rcard{background:#fff;border:1px solid var(--line);border-radius:13px;padding:15px 18px;display:flex;gap:14px;transition:.2s}
.rcard:hover{border-color:var(--g2);box-shadow:0 10px 26px rgba(67,137,162,.14);transform:translateY(-2px)}
.rnum{background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;font-weight:800;border-radius:9px;padding:6px 12px;height:fit-content}
.rmain{display:flex;flex-direction:column;gap:5px}
.rttl{font-weight:700;font-size:1.05rem}.rmeta{color:var(--mut);font-size:.85rem}
.rsnip{font-size:.9rem;color:#444;margin-top:3px}
mark{background:#ffe9a8;color:inherit;padding:0 2px;border-radius:3px}
.paper{max-width:920px;margin:0 auto;padding:30px 20px 60px}
.crumbs{font-size:.85rem;color:var(--mut);margin-bottom:18px}.crumbs a:hover{color:var(--g1)}
.track-badge{display:inline-block;background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;border-radius:999px;padding:5px 16px;font-size:.85rem;font-weight:700}
.paper h1{font-size:clamp(1.3rem,2.6vw,1.9rem);margin:.45em 0;line-height:1.55}
.paper .authors{color:var(--g1);font-weight:600;margin-bottom:20px}
.doi-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.doi-box .lbl{display:block;font-size:.75rem;color:var(--mut);margin-bottom:3px}
.doi-box code{font-size:.92rem;color:var(--g1)}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:22px 0}
.btn{background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 18px;font-weight:700;font-size:.95rem;display:inline-flex;gap:8px;align-items:center;cursor:pointer}
.btn:hover{border-color:var(--g2);color:var(--g1)}
.btn.primary{background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;border:0}
.btn.primary:hover{color:#fff;opacity:.93}
.pages{color:var(--mut);font-size:.9rem}
.copy{background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;border:0;border-radius:9px;padding:9px 15px;font-weight:700;cursor:pointer;font-family:inherit;display:inline-flex;gap:7px;align-items:center}
.copy:hover{opacity:.92}
.paper h2{font-size:1.18rem;margin:30px 0 10px;border-inline-start:5px solid var(--g2);padding-inline-start:12px}
.abstract{text-align:justify;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;color:#333}
.kws{display:flex;flex-wrap:wrap;gap:9px}
.kw{background:#eef;color:var(--g1);border-radius:999px;padding:5px 14px;font-size:.85rem;font-weight:600}
.cite{background:#0f1320;color:#dfe3ee;border-radius:12px;padding:16px 18px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;font-size:.9rem;direction:ltr;text-align:left}
.cite span{flex:1}
.pdf{width:100%;height:78vh;border:1px solid var(--line);border-radius:12px;margin-top:6px;background:#fff}
.pager{display:flex;justify-content:space-between;margin-top:34px}
.pager .pn{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 18px;font-weight:700}
.pager .pn:hover{border-color:var(--g2);color:var(--g1)}
.site-foot{background:#0f1320;color:#aeb4c6;text-align:center;padding:34px 18px;margin-top:40px}
.site-foot img{height:54px;opacity:.9;margin-bottom:10px}
.site-foot p{margin:5px 0}.site-foot .muted{color:#7e8499;font-size:.85rem}
@media(max-width:560px){.hero{padding:38px 14px}.pdf{height:62vh}.doi-box{flex-direction:column;align-items:flex-start}}