.home-portal-root{color:#0f172a;background:#f8fafc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;font-size:16px;line-height:1.6}.home-portal-root .hero h1{letter-spacing:normal;color:#fff;margin:0 0 8px;font-size:2rem;font-weight:700;line-height:1.25}.home-portal-root .hero p{font-size:1rem;font-weight:inherit;color:#cbd5e1;margin:0 0 20px;line-height:1.6}@media (max-width:768px){.home-portal-root .hero h1{font-size:1.5rem}}@scope(.home-portal-root){:scope{--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--secondary:#10b981;--bg-body:#f8fafc;--bg-card:#fff;--text-main:#0f172a;--text-sub:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--radius:12px;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 12px #00000014;--transition:all .25s ease;isolation:isolate;background:var(--bg-body);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;font-size:16px;line-height:1.6}:scope *,:scope :before,:scope :after{box-sizing:border-box}:scope button,:scope input,:scope select{margin:0;font-family:inherit}.hp-link-plain{color:inherit;text-decoration:none}ul{margin:0;padding:0;list-style:none}#teaching-agent-section{scroll-margin-top:88px}.hp-main-grid{grid-template-columns:240px 1fr;gap:32px;max-width:1280px;margin:0 auto;padding:0 24px 48px;display:grid}.hero{color:#fff;text-align:center;background:linear-gradient(135deg,#3b82f6 0%,#0f172a 100%);padding:40px 24px 52px}.hero h1{letter-spacing:normal;color:#fff;margin:0 0 8px;font-size:2rem;font-weight:700;line-height:1.25}.hero p{font-size:1rem;font-weight:inherit;color:#cbd5e1;margin:0 0 20px;line-height:1.6}.search-box{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff26;border:1px solid #fff3;border-radius:50px;max-width:600px;margin:0 auto 20px;display:flex;overflow:hidden}.search-box input{color:#fff;background:0 0;border:none;outline:none;flex:1;padding:12px 20px;font-size:1rem}.search-box input::placeholder{color:#94a3b8}.search-box button{background:var(--secondary);color:#fff;cursor:pointer;border:none;padding:0 24px;font-weight:600}.stats{flex-wrap:wrap;justify-content:center;gap:40px;display:flex}.stat-item{text-align:center}.stat-num{font-size:1.5rem;font-weight:700}.stat-label{color:#94a3b8;font-size:.85rem}.quick-access{z-index:10;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:16px;max-width:1200px;margin:-32px auto 28px;padding:0 24px;display:grid;position:relative}.qa-card{background:var(--bg-card);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-md);transition:var(--transition);cursor:pointer;width:100%;font:inherit;color:inherit;border:none;flex-direction:column;align-items:center;gap:10px;padding:16px 12px;display:flex}.qa-card:hover{transform:translateY(-4px)}.qa-icon-wrap{background:#f1f5f9;border-radius:12px;flex-shrink:0;width:48px;height:48px;overflow:hidden}.qa-icon-wrap img{object-fit:contain;width:100%;height:100%;transition:transform .3s}.qa-card:hover .qa-icon-wrap img{transform:scale(1.12)}.qa-text{color:var(--text-main);font-size:.85rem;font-weight:500;line-height:1.3}.sidebar{background:var(--bg-card);border-radius:var(--radius);height:calc(100vh - 100px);box-shadow:var(--shadow-sm);padding:16px;position:sticky;top:80px;overflow-y:auto}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.sidebar h3{border-bottom:1px solid var(--border);align-items:center;gap:6px;margin:0 0 12px;padding-bottom:8px;font-size:1rem;display:flex}.college-list li{color:var(--text-sub);cursor:pointer;transition:var(--transition);border-radius:8px;justify-content:space-between;align-items:center;padding:10px 12px;font-size:.9rem;display:flex}.college-list li:hover{background:#f1f5f9}.college-list li.active{background:var(--primary-light);color:var(--primary);font-weight:600}.college-count{color:var(--text-muted);background:#e2e8f0;border-radius:10px;padding:2px 6px;font-size:.75rem}.college-list li.active .college-count{color:var(--primary);background:#2563eb26}.course-area{min-width:0;padding-top:20px}.filter-summary{background:var(--primary-light);border:1px solid #bfdbfe;border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:16px;padding:10px 16px;font-size:.9rem;display:flex}.filter-summary-text{color:var(--primary);font-weight:500}.filter-summary-text span{color:var(--text-sub);font-weight:400}.btn-reset{color:var(--primary);cursor:pointer;background:0 0;border:none;font-size:.85rem;text-decoration:underline}.btn-reset:hover{color:var(--primary-hover)}.tabs{gap:8px;margin-bottom:16px;padding-bottom:4px;display:flex;overflow-x:auto}.tab{background:var(--bg-card);border:1px solid var(--border);cursor:pointer;white-space:nowrap;transition:var(--transition);border-radius:20px;padding:8px 16px;font-size:.9rem}.tab:hover{border-color:var(--primary);color:var(--primary)}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.filters{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px;display:flex}.filter-select{border:1px solid var(--border);background:var(--bg-card);color:var(--text-sub);cursor:pointer;transition:var(--transition);border-radius:8px;outline:none;padding:8px 14px;font-size:.9rem}.filter-select:hover{border-color:var(--primary)}.filter-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.result-count{color:var(--text-muted);margin-bottom:16px;font-size:.85rem}.course-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;display:grid}.course-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid var(--border);animation:.4s hp-fadeInUp;overflow:hidden}@keyframes hp-fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.course-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.card-img-wrap{background:#e2e8f0;width:100%;height:160px;position:relative;overflow:hidden}.card-img-wrap img{object-fit:cover;width:100%;height:100%;transition:transform .4s}.course-card:hover .card-img-wrap img{transform:scale(1.05)}.card-img-overlay{background:linear-gradient(#0000001a 70%,#00000080 60%,#000000bf 100%);flex-direction:column;justify-content:space-between;padding:12px 14px;display:flex;position:absolute;inset:0}.card-badges{flex-wrap:wrap;gap:6px;display:flex}.badge-img{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:6px;padding:3px 10px;font-size:.75rem;font-weight:600}.badge-required{color:#fff;background:#ef4444d9}.badge-hot{color:#fff;background:#f97316d9}.badge-new{color:#fff;background:#10b981d9}.badge-practice{color:#fff;background:#8b5cf6d9}.badge-elective{color:#fff;background:#64748bb3}.card-title-overlay{color:#fff;text-shadow:0 1px 4px #0006;font-size:1.05rem;font-weight:600;line-height:1.4}.card-body{padding:14px 16px}.card-meta{color:var(--text-muted);cursor:default;align-items:center;gap:6px;min-width:0;margin-bottom:10px;font-size:.8rem;display:flex}.card-meta-icon{flex-shrink:0}.card-meta-text{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.card-info{color:var(--text-sub);justify-content:space-between;align-items:center;font-size:.82rem;display:flex}.card-info span{white-space:nowrap;flex:0 auto;align-items:center;gap:3px;display:flex}.btn-learn{background:var(--primary);cursor:pointer;width:100%;transition:var(--transition);text-align:center;font-weight:500;font-size:inherit;border:none;border-radius:8px;margin-top:12px;padding:9px;text-decoration:none;display:block;color:#fff!important}.btn-learn:hover{background:var(--primary-hover)}.empty-state{text-align:center;color:var(--text-muted);grid-column:1/-1;padding:60px 20px;animation:.3s hp-fadeIn}@keyframes hp-fadeIn{0%{opacity:0}to{opacity:1}}.empty-icon{opacity:.6;margin-bottom:16px;font-size:3.5rem}.empty-title{color:var(--text-sub);margin-bottom:8px;font-size:1.1rem;font-weight:500}.empty-desc{margin-bottom:20px;font-size:.9rem}.btn-back{background:var(--primary-light);color:var(--primary);cursor:pointer;transition:var(--transition);border:none;border-radius:8px;padding:8px 20px;font-weight:500}.btn-back:hover{background:#dbeafe}.load-more-wrap{text-align:center;margin-top:28px}.btn-load-more{background:var(--bg-card);color:var(--text-sub);border:1px solid var(--border);cursor:pointer;transition:var(--transition);border-radius:8px;padding:10px 32px;font-size:.95rem;font-weight:500}.btn-load-more:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.btn-load-more:disabled{opacity:.5;cursor:not-allowed}.loading-spinner{border:2px solid var(--border);border-top-color:var(--primary);vertical-align:middle;border-radius:50%;width:16px;height:16px;margin-right:6px;animation:.6s linear infinite hp-spin;display:inline-block}@keyframes hp-spin{to{transform:rotate(360deg)}}.back-to-top{background:var(--primary);color:#fff;width:44px;height:44px;box-shadow:var(--shadow-md);cursor:pointer;z-index:99;transition:var(--transition);border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.2rem;display:none;position:fixed;bottom:32px;right:32px}.back-to-top:hover{background:var(--primary-hover);transform:scale(1.1)}.back-to-top.show{display:flex}.hp-footer{color:#94a3b8;text-align:center;background:#0f172a;padding:28px 24px;font-size:.9rem}.hp-footer a{color:#cbd5e1;margin:0 8px}#knowledge-base-section{scroll-margin-top:88px}.knowledge-embed-wrap{max-width:1280px;margin:0 auto;padding:0 24px 40px}.knowledge-embed-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;display:flex}.knowledge-embed-head h2{color:var(--text-main);margin:0;font-size:1.1rem;font-weight:600}.knowledge-embed-open{color:var(--primary);font-size:.85rem;font-weight:500;text-decoration:none}.knowledge-embed-open:hover{color:var(--primary-hover);text-decoration:underline}.knowledge-embed-frame{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card);width:100%;height:80vh;min-height:85vh;box-shadow:var(--shadow-sm)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0f172a99;justify-content:center;align-items:center;animation:.2s hp-fadeIn;display:none;position:fixed;inset:0}.modal-overlay.show{display:flex}.modal{background:var(--bg-card);border-radius:16px;width:420px;max-width:90vw;animation:.3s hp-slideUp;overflow:hidden;box-shadow:0 20px 60px #0003}@keyframes hp-slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-header{justify-content:space-between;align-items:center;padding:24px 28px 0;display:flex}.modal-header h2{color:var(--text-main);margin:0;font-size:1.3rem}.modal-close{cursor:pointer;width:32px;height:32px;color:var(--text-sub);transition:var(--transition);background:#f1f5f9;border:none;border-radius:8px;justify-content:center;align-items:center;font-size:1.2rem;display:flex}.modal-close:hover{background:#e2e8f0}.modal-body{padding:24px 28px 28px;position:relative}.auth-tabs{background:#f1f5f9;border-radius:10px;gap:0;margin-bottom:24px;padding:4px;display:flex}.auth-tab{text-align:center;color:var(--text-sub);cursor:pointer;transition:var(--transition);background:0 0;border:none;border-radius:8px;flex:1;padding:10px;font-size:.95rem;font-weight:500}.auth-tab.active{background:var(--bg-card);color:var(--primary);box-shadow:var(--shadow-sm)}.auth-form{opacity:1;transition:opacity .3s}.auth-form.hidden{opacity:0;pointer-events:none;visibility:hidden;position:absolute}.auth-form.visible{opacity:1;pointer-events:auto;visibility:visible;position:relative}.form-group{margin-bottom:18px}.form-group label{color:var(--text-sub);margin-bottom:6px;font-size:.85rem;font-weight:500;display:block}.form-input{border:1px solid var(--border);width:100%;color:var(--text-main);transition:var(--transition);box-sizing:border-box;background:#f8fafc;border-radius:8px;outline:none;padding:10px 14px;font-size:.95rem}.form-input:focus{border-color:var(--primary);background:var(--bg-card);box-shadow:0 0 0 3px #2563eb1a}.form-input::placeholder{color:var(--text-muted)}.form-row{gap:12px;display:flex}.form-row .form-group{flex:1}.btn-submit{background:var(--primary);color:#fff;cursor:pointer;width:100%;transition:var(--transition);border:none;border-radius:8px;margin-top:8px;padding:12px;font-size:1rem;font-weight:600}.btn-submit:hover{background:var(--primary-hover)}.btn-submit:disabled{opacity:.6;cursor:not-allowed}.form-footer{text-align:center;color:var(--text-muted);margin-top:16px;font-size:.85rem}.form-footer button.linkish{color:var(--primary);cursor:pointer;font-weight:500;font-size:inherit;background:0 0;border:none;padding:0;text-decoration:none;display:inline}.form-footer button.linkish:hover{text-decoration:underline}.auth-error{color:#ef4444;margin-top:6px;font-size:.82rem;display:none}.auth-error.show{display:block}.auth-success{text-align:center;padding:20px 0;display:none}.auth-success.show{display:block}.success-icon{margin-bottom:12px;font-size:3rem}.success-text{color:var(--text-main);margin-bottom:4px;font-size:1.1rem;font-weight:600}.success-sub{color:var(--text-muted);font-size:.9rem}.user-profile{cursor:pointer;align-items:center;gap:10px;display:flex}@media (min-width:768px) and (max-width:1024px){.hp-main-grid{grid-template-columns:minmax(140px,180px) 1fr;gap:20px;padding:0 16px 40px}.sidebar h3{font-size:.95rem}.college-list li{padding:8px 10px;font-size:.82rem}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-access{grid-template-columns:repeat(3,minmax(0,1fr));padding:0 16px}}@media (max-width:768px){.hp-main-grid{grid-template-columns:1fr;padding:0 16px 36px}.sidebar{display:none}.hero h1{font-size:1.5rem}.hero p{font-size:.95rem}.search-box{border-radius:12px;max-width:100%}.search-box input{min-width:0;padding:10px 14px;font-size:.9rem}.search-box button{flex-shrink:0;padding:0 16px;font-size:.9rem}.stats{gap:20px}.stat-num{font-size:1.25rem}.course-grid{grid-template-columns:1fr}.quick-access{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:-24px;padding:0 12px}.qa-card{padding:12px 8px}.qa-text{font-size:.78rem}.filters{gap:8px}.filter-select{flex:calc(50% - 4px);min-width:0;max-width:100%}.filter-summary{flex-direction:column;align-items:flex-start;gap:8px}.modal{width:min(420px,100vw - 32px)}}@media (max-width:480px){.quick-access{grid-template-columns:repeat(2,minmax(0,1fr))}.filters{flex-direction:column;align-items:stretch}.filter-select{flex:none;width:100%}.tabs{-webkit-overflow-scrolling:touch}}@media (min-width:1025px) and (max-width:1366px){.course-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}@media (min-width:1920px){.hp-main-grid{max-width:1440px}.quick-access{max-width:1320px}}@media (max-width:932px) and (orientation:landscape){.hero{padding:22px 16px 28px}.hero p{margin-bottom:12px}.stats{gap:18px;margin-top:14px}.hp-main-grid{padding-left:16px;padding-right:16px}.quick-access{grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}.qa-card{padding:12px 10px}.qa-icon-wrap{width:44px;height:44px}}@media (max-width:767px){.hero,.hp-main-grid,.knowledge-embed-wrap{padding-left:calc(16px + env(safe-area-inset-left));padding-right:calc(16px + env(safe-area-inset-right))}.hp-footer{padding-left:calc(20px + env(safe-area-inset-left));padding-right:calc(20px + env(safe-area-inset-right));padding-bottom:calc(24px + env(safe-area-inset-bottom))}.back-to-top{right:calc(16px + env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom))}}}
.home-portal-root{--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--secondary:#10b981;--bg-body:#f8fafc;--bg-card:#fff;--text-main:#0f172a;--text-sub:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--radius:12px;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 12px #00000014;--transition:all .25s ease;isolation:isolate;background:var(--bg-body);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;font-size:16px;line-height:1.6}.home-portal-root *,.home-portal-root :before,.home-portal-root :after{box-sizing:border-box}.home-portal-root ul{margin:0;padding:0;list-style:none}.home-portal-root .hp-main-grid{grid-template-columns:240px 1fr;gap:32px;max-width:1280px;margin:0 auto;padding:0 24px 48px;display:grid}.home-portal-root .hero{color:#fff;text-align:center;background:linear-gradient(135deg,#3b82f6 0%,#0f172a 100%);padding:40px 24px 52px}.home-portal-root .search-box{background:#fff;border-radius:999px;max-width:640px;margin:0 auto;display:flex;overflow:hidden;box-shadow:0 8px 24px #0f172a2e}.home-portal-root .search-box input{color:#0f172a;border:none;outline:none;flex:1;min-width:0;padding:14px 18px;font-size:.95rem}.home-portal-root .search-box button{background:var(--primary);color:#fff;cursor:pointer;border:none;outline:none;padding:0 22px;font-weight:600}.home-portal-root .stats{flex-wrap:wrap;justify-content:center;gap:48px;margin-top:26px;display:flex}.home-portal-root .course-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;display:grid}.home-portal-root .course-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border);overflow:hidden}.home-portal-root .card-img-wrap{background:#e2e8f0;width:100%;height:160px;position:relative;overflow:hidden}.home-portal-root .card-img-wrap img{object-fit:cover;width:100%;height:100%}.home-portal-root .card-body{padding:14px 16px}.home-portal-root .card-meta{cursor:default;min-width:0}.home-portal-root .card-meta-icon{flex-shrink:0}.home-portal-root .card-meta-text{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}@media (min-width:768px) and (max-width:1024px){.home-portal-root .hp-main-grid{grid-template-columns:minmax(140px,180px) 1fr;gap:20px;padding:0 16px 40px}.home-portal-root .course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:767px){.home-portal-root .hp-main-grid{grid-template-columns:1fr}.home-portal-root .sidebar{display:none}.home-portal-root .course-grid{grid-template-columns:1fr}.home-portal-root .stats{gap:24px}}@media (max-width:932px) and (orientation:landscape){.home-portal-root .hero{padding:22px 16px 28px}.home-portal-root .stats{gap:18px;margin-top:14px}.home-portal-root .hp-main-grid{padding-left:16px;padding-right:16px}}@media (max-width:767px){.home-portal-root .hero,.home-portal-root .hp-main-grid{padding-left:calc(16px + env(safe-area-inset-left));padding-right:calc(16px + env(safe-area-inset-right))}}