.nav[data-astro-cid-cphhfbs2]{z-index:100;-webkit-backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--border);background:#ffffffeb;padding:10px 0;position:fixed;top:0;left:0;right:0}@media (prefers-color-scheme:dark){.nav[data-astro-cid-cphhfbs2]{background:#111527eb}}.nav-inner[data-astro-cid-cphhfbs2]{align-items:center;gap:14px;display:flex}.nav-brand[data-astro-cid-cphhfbs2]{flex-shrink:0;align-items:center;gap:8px;text-decoration:none;display:flex}.nav-logo[data-astro-cid-cphhfbs2]{border-radius:7px}.nav-title[data-astro-cid-cphhfbs2]{color:var(--text);font-family:Outfit,sans-serif;font-size:.9rem;font-weight:700}.breadcrumb[data-astro-cid-cphhfbs2]{align-items:center;gap:5px;display:flex;overflow:hidden}.crumb[data-astro-cid-cphhfbs2]{color:var(--muted);white-space:nowrap;font-size:.78rem;text-decoration:none}.crumb[data-astro-cid-cphhfbs2]:hover{color:var(--text)}.crumb-sep[data-astro-cid-cphhfbs2]{color:var(--border)}.crumb-current[data-astro-cid-cphhfbs2]{color:var(--text);font-weight:600}.btn-nav[data-astro-cid-cphhfbs2]{background:var(--text);color:var(--bg);border-radius:999px;flex-shrink:0;margin-left:auto;padding:6px 16px;font-size:.8rem;font-weight:600;text-decoration:none;transition:opacity .15s}.btn-nav[data-astro-cid-cphhfbs2]:hover{opacity:.8}.sub-header[data-astro-cid-cphhfbs2]{background:var(--surface);border-bottom:1px solid var(--border);padding:80px 0 0;position:relative;overflow:hidden}.header-bg[data-astro-cid-cphhfbs2]{pointer-events:none;position:absolute;inset:0}.header-content[data-astro-cid-cphhfbs2]{padding:36px 0 32px;position:relative}.sub-breadcrumb-tags[data-astro-cid-cphhfbs2]{align-items:center;gap:8px;margin-bottom:14px;display:flex}.tag-link[data-astro-cid-cphhfbs2]{background:color-mix(in srgb, var(--dept-color) 12%, transparent);color:var(--dept-color);letter-spacing:.03em;border-radius:999px;padding:3px 12px;font-size:.75rem;font-weight:700;text-decoration:none;transition:opacity .15s}.tag-link[data-astro-cid-cphhfbs2]:hover{opacity:.8}.code-tag[data-astro-cid-cphhfbs2]{background:var(--surface-2);border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:3px 12px;font-size:.75rem;font-weight:600}.sub-title[data-astro-cid-cphhfbs2]{color:var(--text);letter-spacing:-.04em;margin-bottom:16px;font-family:Outfit,sans-serif;font-size:clamp(1.5rem,3vw,2.2rem);font-weight:900;line-height:1.15}.sub-stats[data-astro-cid-cphhfbs2]{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.info-chip[data-astro-cid-cphhfbs2]{background:var(--surface-2);border:1px solid var(--border);color:var(--muted);border-radius:999px;align-items:center;gap:5px;padding:4px 12px;font-size:.78rem;display:flex}.sub-desc[data-astro-cid-cphhfbs2]{color:var(--muted);max-width:560px;margin-top:14px;font-size:.9rem;line-height:1.65}.main-content[data-astro-cid-cphhfbs2]{padding:48px 0 80px}.papers-layout[data-astro-cid-cphhfbs2]{grid-template-columns:1fr 300px;align-items:start;gap:32px;display:grid}@media (width<=900px){.papers-layout[data-astro-cid-cphhfbs2]{grid-template-columns:1fr}.papers-sidebar[data-astro-cid-cphhfbs2]{order:-1}}.papers-list[data-astro-cid-cphhfbs2]{flex-direction:column;gap:36px;display:flex}.year-group[data-astro-cid-cphhfbs2]{scroll-margin-top:80px}.year-label[data-astro-cid-cphhfbs2]{border-bottom:2px solid var(--border);align-items:center;gap:12px;margin-bottom:16px;padding-bottom:12px;display:flex}.year-num[data-astro-cid-cphhfbs2]{color:var(--text);letter-spacing:-.04em;font-family:Outfit,sans-serif;font-size:1.25rem;font-weight:800}.year-count[data-astro-cid-cphhfbs2]{color:var(--muted);font-size:.8rem}.paper-cards[data-astro-cid-cphhfbs2]{flex-direction:column;gap:12px;display:flex}.paper-card[data-astro-cid-cphhfbs2]{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;transition:border-color .2s,box-shadow .2s,transform .2s;display:flex}.paper-card[data-astro-cid-cphhfbs2]:hover{border-color:color-mix(in srgb, var(--dept-color) 30%, var(--border));box-shadow:var(--shadow);transform:translateY(-1px)}.paper-card-left[data-astro-cid-cphhfbs2]{flex:1;align-items:center;gap:16px;display:flex}.paper-year-badge[data-astro-cid-cphhfbs2]{color:var(--dept-color);background:color-mix(in srgb, var(--dept-color) 10%, var(--surface-2));border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;font-family:Outfit,sans-serif;font-size:1.1rem;font-weight:800;display:flex}.paper-title[data-astro-cid-cphhfbs2]{color:var(--text);margin-bottom:5px;font-size:.95rem;font-weight:700}.paper-type-row[data-astro-cid-cphhfbs2]{align-items:center;gap:8px;display:flex}.exam-type-badge[data-astro-cid-cphhfbs2]{border-radius:999px;padding:2px 8px;font-size:.7rem;font-weight:600}.exam-type-badge[data-astro-cid-cphhfbs2].regular{color:#16a34a;background:#16a34a1f}.exam-type-badge[data-astro-cid-cphhfbs2].back{color:#c27d10;background:#f5a62324}.paper-marks[data-astro-cid-cphhfbs2]{color:var(--muted);font-size:.75rem}.btn-view[data-astro-cid-cphhfbs2]{background:var(--dept-color);color:#fff;border-radius:var(--radius-sm);white-space:nowrap;align-items:center;gap:6px;padding:9px 18px;font-size:.82rem;font-weight:700;text-decoration:none;transition:opacity .15s,transform .1s;display:inline-flex}.btn-view[data-astro-cid-cphhfbs2]:hover{opacity:.88}.btn-view[data-astro-cid-cphhfbs2]:active{transform:scale(.97)}.empty-state[data-astro-cid-cphhfbs2]{text-align:center;flex-direction:column;align-items:center;gap:16px;padding:80px 20px;display:flex}.empty-icon[data-astro-cid-cphhfbs2]{font-size:3rem}.empty-state[data-astro-cid-cphhfbs2] h2[data-astro-cid-cphhfbs2]{color:var(--text);font-size:1.4rem}.empty-state[data-astro-cid-cphhfbs2] p[data-astro-cid-cphhfbs2]{color:var(--muted);max-width:380px;font-size:.9rem}.btn-back[data-astro-cid-cphhfbs2]{border:1.5px solid var(--border);border-radius:var(--radius);color:var(--text);align-items:center;padding:10px 20px;font-size:.875rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.btn-back[data-astro-cid-cphhfbs2]:hover{background:var(--surface-2)}.papers-sidebar[data-astro-cid-cphhfbs2]{flex-direction:column;gap:16px;display:flex;position:sticky;top:80px}.sidebar-card[data-astro-cid-cphhfbs2]{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.sidebar-title[data-astro-cid-cphhfbs2]{color:var(--text);letter-spacing:-.01em;margin-bottom:14px;font-size:.85rem;font-weight:700}.sidebar-dl[data-astro-cid-cphhfbs2]{grid-template-columns:auto 1fr;gap:8px 16px;display:grid}.sidebar-dl[data-astro-cid-cphhfbs2] dt[data-astro-cid-cphhfbs2]{color:var(--muted);font-size:.78rem;font-weight:500}.sidebar-dl[data-astro-cid-cphhfbs2] dd[data-astro-cid-cphhfbs2]{color:var(--text);font-size:.78rem;font-weight:600}.cta-card[data-astro-cid-cphhfbs2]{border-color:color-mix(in srgb, var(--dept-color) 25%, var(--border));background:color-mix(in srgb, var(--dept-color) 5%, var(--surface));text-align:center;flex-direction:column;align-items:center;gap:10px;display:flex}.cta-icon[data-astro-cid-cphhfbs2]{font-size:1.75rem}.cta-card[data-astro-cid-cphhfbs2] h3[data-astro-cid-cphhfbs2]{color:var(--text);font-size:.9rem;font-weight:700}.cta-card[data-astro-cid-cphhfbs2] p[data-astro-cid-cphhfbs2]{color:var(--muted);font-size:.78rem;line-height:1.55}.btn-cta[data-astro-cid-cphhfbs2]{background:var(--dept-color);color:#fff;border-radius:var(--radius-sm);justify-content:center;align-items:center;width:100%;padding:9px 20px;font-size:.82rem;font-weight:700;text-decoration:none;transition:opacity .15s;display:inline-flex}.btn-cta[data-astro-cid-cphhfbs2]:hover{opacity:.88}.year-jump-list[data-astro-cid-cphhfbs2]{flex-direction:column;gap:4px;display:flex}.year-jump-link[data-astro-cid-cphhfbs2]{border-radius:var(--radius-sm);color:var(--muted);justify-content:space-between;align-items:center;padding:7px 10px;font-size:.82rem;font-weight:600;text-decoration:none;transition:background .15s,color .15s;display:flex}.year-jump-link[data-astro-cid-cphhfbs2]:hover{background:color-mix(in srgb, var(--dept-color) 10%, var(--surface-2));color:var(--dept-color)}.year-jump-count[data-astro-cid-cphhfbs2]{color:var(--muted);background:var(--surface-2);border-radius:999px;padding:1px 6px;font-size:.72rem;font-weight:500}.footer[data-astro-cid-cphhfbs2]{border-top:1px solid var(--border);background:var(--surface);padding:24px 0}.footer-inner[data-astro-cid-cphhfbs2]{justify-content:space-between;align-items:center;display:flex}.footer-brand[data-astro-cid-cphhfbs2]{color:var(--text);align-items:center;gap:8px;font-size:.88rem;font-weight:700;text-decoration:none;display:flex}.footer-nav[data-astro-cid-cphhfbs2]{gap:20px;display:flex}.footer-nav[data-astro-cid-cphhfbs2] a[data-astro-cid-cphhfbs2]{color:var(--muted);font-size:.83rem;text-decoration:none}.footer-nav[data-astro-cid-cphhfbs2] a[data-astro-cid-cphhfbs2]:hover{color:var(--text)}