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0;max-width:860px;font-weight:600;font-size:max(14px,0.92rem)}.filter-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--card-shadow);margin:0 auto 24px;max-width:860px}.filter-field{display:flex;flex-direction:column;gap:6px;flex:1;min-width:150px}.filter-field label{font-size:max(14px,0.82rem);color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:0.03em}.filter-field select{background:var(--bg);border:1.5px solid var(--border);color:var(--text);border-radius:10px;padding:10px 12px;height:44px;cursor:pointer;transition:border-color 0.15s;width:100%;max-width:100%;min-width:0;text-overflow:ellipsis}.filter-field select:focus{border-color:var(--primary);outline:none}.exam-info{background:var(--bg);border:1px dashed var(--border);border-radius:10px;padding:8px 12px;font-size:max(14px,0.85rem);color:var(--text-2);min-height:44px;display:flex;flex-direction:column;justify-content:center}#quizWrap,#examWrap,#examResult{max-width:860px;margin-left:auto;margin-right:auto;width:100%}.quiz-top{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}.progress-bar{background:var(--border);border-radius:999px;height:10px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,var(--primary),var(--accent));height:100%;width:0;transition:width 0.3s ease}.quiz-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.quiz-meta span{color:var(--muted);font-weight:700;font-variant-numeric:tabular-nums;font-size:0.95rem}.question-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--card-shadow);margin-bottom:20px;width:100%}.q-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.q-tags{display:flex;gap:8px;flex-wrap:wrap}.q-tag{font-size:max(14px,0.76rem);font-weight:700;padding:3px 11px;border-radius:999px;background:var(--primary-light);color:var(--primary)}.q-tag.topic{background:var(--accent-light);color:var(--accent)}.q-tag.critical{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad-border)}.bookmark-btn{background:none;border:1.5px solid var(--border);border-radius:999px;font-size:max(14px,0.82rem);font-weight:600;color:var(--muted);padding:4px 12px;cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:all 0.15s}.bookmark-btn:hover{border-color:var(--accent);color:var(--accent)}.bookmark-btn.active{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}.q-text{font-size:1.15rem;font-weight:700;margin:0 0 16px;line-height:1.6;word-break:break-word}.q-image-wrap picture,.review-item picture{display:block}.q-image-wrap{text-align:center;margin:0 0 16px;background:var(--bg);padding:12px;border-radius:12px;border:1px solid var(--border)}.q-image{max-width:100%;max-height:320px;border-radius:8px;cursor:zoom-in;margin:0 auto;display:block;aspect-ratio:4 / 3;object-fit:contain;background:var(--bg2);width:100%;height:auto}.q-img-hint{font-size:max(14px,0.78rem);color:var(--muted);margin-top:6px;display:inline-flex;align-items:center;gap:4px}.options{display:flex;flex-direction:column;gap:10px}.opt{display:flex;gap:12px;align-items:center;border:1.5px solid var(--border);border-radius:12px;padding:13px 16px;cursor:pointer;transition:border-color 0.12s ease,background 0.12s ease,transform 0.1s ease;background:var(--bg2);min-height:50px}.opt:hover{border-color:var(--primary);background:var(--primary-light)}.opt:active{transform:scale(0.99)}.opt-letter{flex:none;width:32px;height:32px;border-radius:50%;background:var(--bg);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:max(14px,0.9rem);transition:all 0.15s}.opt-body{flex:1;font-size:0.98rem;line-height:1.5;word-break:break-word}.opt.selected{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 1px var(--primary)}.opt.selected .opt-letter{background:var(--primary);border-color:var(--primary);color:#fff}.opt.correct{border-color:var(--ok);background:var(--ok-bg)}.opt.correct .opt-letter{background:var(--ok);border-color:var(--ok);color:#fff}.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}.opt.wrong .opt-letter{background:var(--bad);border-color:var(--bad);color:#fff}.opt.disabled{pointer-events:none}.explain{margin-top:16px;border-radius:12px;padding:14px 18px;font-size:0.95rem;line-height:1.6;word-break:break-word}.explain.ok{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-border)}.explain.bad{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad-border)}.explain strong{display:block;margin-bottom:4px;font-size:1rem}.img-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.88);z-index:100;display:none;align-items:center;justify-content:center;padding:20px;cursor:zoom-out;backdrop-filter:blur(6px)}.img-overlay.show{display:flex}.img-overlay img{max-width:95vw;max-height:90vh;border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,0.5)}.quiz-nav{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between}.exam-sets-wrap{margin:8px auto 28px;max-width:860px;width:100%}.exam-sets-head{margin-bottom:12px}.exam-sets-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.set-card{background:var(--bg2);border:1.5px solid var(--border);border-radius:12px;padding:14px 16px;text-align:left;box-shadow:var(--card-shadow);cursor:pointer;transition:transform 0.15s ease,border-color 0.15s ease,box-shadow 0.15s ease;display:flex;flex-direction:column;color:inherit}.set-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--card-shadow-hover)}.set-card.random{border-color:var(--accent);background:linear-gradient(135deg,var(--bg2),var(--accent-light))}.set-card.random:hover{border-color:var(--accent-2)}.set-card-title{font-weight:800;font-size:0.98rem;display:flex;align-items:center;justify-content:space-between;gap:6px}.set-card-badge{font-size:max(14px,0.72rem);font-weight:700;padding:2px 8px;border-radius:999px;background:var(--primary-light);color:var(--primary)}.set-card.random .set-card-badge{background:var(--accent-light);color:var(--accent)}.set-card-desc{font-size:max(14px,0.82rem);color:var(--muted);margin-top:4px;flex:1;line-height:1.45}.set-card-status{margin-top:10px;font-size:max(14px,0.76rem);font-weight:700;padding:3px 9px;border-radius:999px;align-self:flex-start;display:inline-flex;align-items:center;gap:4px}.set-status-pass{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-border)}.set-status-fail{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad-border)}.set-status-none{background:var(--bg);color:var(--muted);border:1px solid var(--border)}.exam-layout{display:grid;grid-template-columns:310px 1fr;gap:22px;align-items:start;width:100%;margin-top:10px}.exam-layout>*{min-width:0;max-width:100%}.exam-sidebar{position:sticky;top:75px;z-index:20}.exam-sidebar-card{background:var(--bg2);border:1.5px solid var(--border);border-radius:var(--radius);padding:18px 16px;box-shadow:var(--card-shadow);display:flex;flex-direction:column;gap:14px}.exam-header-info{border-bottom:1px solid var(--border);padding-bottom:12px}.exam-title-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}.exam-class-badge{background:var(--primary);color:#fff;font-weight:800;font-size:max(14px,0.78rem);padding:3px 10px;border-radius:999px}.exam-set-title{font-weight:800;font-size:1.05rem;color:var(--text)}.exam-mode-badge{font-size:max(14px,0.76rem);font-weight:700;color:var(--accent);background:var(--accent-light);padding:2px 8px;border-radius:6px;display:inline-block}.exam-timer-box{background:var(--bg3);border:1px solid var(--border);border-radius:12px;padding:10px 12px;text-align:center}.timer-label{font-size:max(14px,0.76rem);color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:0.04em;margin-bottom:2px}.exam-timer{font-size:1.85rem;font-weight:900;color:var(--primary);font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.2}.exam-timer.warn{color:var(--bad);animation:blink 1s infinite}@keyframes blink{50%{opacity:0.35}}.exam-progress-summary{display:flex;flex-direction:column;gap:6px;width:100%;box-sizing:border-box}.exam-progress-text{display:flex;justify-content:space-between;align-items:center;font-size:max(14px,0.86rem);font-weight:700;color:var(--muted);width:100%}.progress-bar{width:100%;height:7px;background:var(--bg3);border-radius:999px;overflow:hidden;box-sizing:border-box}.progress-fill{height:100%;width:0;background:var(--primary);border-radius:999px;transition:width 0.25s ease}.exam-grid-wrap{display:flex;flex-direction:column;gap:8px;width:100%;box-sizing:border-box;overflow:hidden}.exam-grid-header{font-size:max(14px,0.82rem);font-weight:700;color:var(--text-2)}.question-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;max-height:240px;overflow-y:auto;padding:4px 2px;width:100%;box-sizing:border-box;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.question-grid::-webkit-scrollbar{width:4px}.question-grid::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}.q-dot{border:1.5px solid var(--border);background:var(--bg);border-radius:8px;padding:7px 0;text-align:center;font-weight:700;font-size:max(14px,0.84rem);color:var(--muted);transition:all 0.12s ease;cursor:pointer;width:100%;min-width:0;box-sizing:border-box;display:flex;align-items:center;justify-content:center}.q-dot:hover{border-color:var(--primary);color:var(--primary)}.q-dot.answered{background:var(--primary);border-color:var(--primary);color:#fff}.q-dot.dot-correct{background:var(--ok) !important;border-color:var(--ok) !important;color:#fff !important}.q-dot.dot-wrong{background:var(--bad) !important;border-color:var(--bad) !important;color:#fff !important}.q-dot.critical{border-color:var(--bad);color:var(--bad)}.q-dot.critical.answered{background:var(--bad);border-color:var(--bad);color:#fff}.q-dot.active{outline:2.5px solid var(--accent);outline-offset:1px}.exam-sidebar-footer{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--border);padding-top:12px;width:100%;box-sizing:border-box}.exam-legend{display:flex;align-items:center;gap:8px 12px;font-size:max(14px,0.76rem);color:var(--muted);flex-wrap:wrap;width:100%;box-sizing:border-box}.legend-item{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.btn-submit-exam{width:100%;padding:12px;font-size:1rem;box-sizing:border-box}.btn-exit-exam{width:100%;box-sizing:border-box}.exam-main-content{min-width:0;width:100%;box-sizing:border-box}.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,0.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:150;display:flex;align-items:center;justify-content:center;padding:16px}.modal-overlay.hidden{display:none !important}.modal-card{background:var(--bg2);border:1px solid var(--border);border-radius:20px;box-shadow:0 20px 40px rgba(15,23,42,0.2);width:100%;max-width:580px;padding:28px 24px 22px;text-align:left;animation:modalPop 0.2s cubic-bezier(0.16,1,0.3,1)}@keyframes modalPop{0%{transform:scale(0.94);opacity:0}100%{transform:scale(1);opacity:1}}.modal-head{text-align:center;margin-bottom:20px}.modal-badge{display:inline-block;background:var(--primary-light);color:var(--primary);font-weight:800;font-size:max(14px,0.82rem);padding:4px 14px;border-radius:999px;margin-bottom:10px}.modal-title{font-size:1.35rem;font-weight:800;margin:0 0 6px;color:var(--text)}.modal-sub{color:var(--muted);font-size:max(14px,0.92rem);margin:0}.mode-options-grid{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}.mode-opt-card{background:var(--bg);border:2px solid var(--border);border-radius:14px;padding:16px;text-align:left;display:flex;gap:14px;align-items:flex-start;cursor:pointer;transition:all 0.15s ease}.mode-opt-card:hover{border-color:var(--primary);background:var(--primary-light);transform:translateY(-2px)}.mode-opt-ico{font-size:2rem;flex-shrink:0;line-height:1}.mode-opt-body{flex:1}.mode-opt-title{font-weight:800;font-size:1.02rem;color:var(--text);margin-bottom:4px}.mode-opt-desc{font-size:max(14px,0.86rem);color:var(--muted);line-height:1.5;margin-bottom:10px}.mode-opt-btn{font-size:max(14px,0.84rem);font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:4px}.modal-footer{text-align:center}.hint-dot{display:inline-block;width:11px;height:11px;border-radius:3px;background:var(--primary);margin-right:4px;vertical-align:-1px}.dot-open{background:var(--bg);border:1.5px solid var(--border)}.dot-flag{background:var(--bad)}.result-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:32px 20px;box-shadow:var(--card-shadow);text-align:center;margin-bottom:24px}.result-card h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 8px}.result-pass{color:var(--ok)}.result-fail{color:var(--bad)}.result-num{font-size:clamp(2.4rem,5vw,3.2rem);font-weight:900;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}.result-stats{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:18px 0}.result-chip{background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:6px 16px;font-size:max(14px,0.9rem);font-weight:600}.review-item{border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:12px;text-align:left;background:var(--bg2);box-shadow:var(--card-shadow)}.review-item h4{margin:0 0 8px;font-size:1rem;line-height:1.5;word-break:break-word}.review-ans{font-size:max(14px,0.92rem);line-height:1.5;word-break:break-word}.review-ans .right{color:var(--ok);font-weight:700}.review-ans .wrong{color:var(--bad);font-weight:700}.tips-section{margin-bottom:36px}.tips-section-head{margin-bottom:16px}.exam-roadmap-wrap{margin-top:16px;border-radius:16px;overflow:hidden;box-shadow:0 4px 24px rgba(15,23,42,0.10);background:#f0f4ff;border:1px solid var(--border)}.exam-roadmap-img{display:block;width:100%;height:auto;border-radius:16px}.roadmap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.roadmap-card{background:var(--bg2);border:1px solid var(--border);border-top:4px solid var(--primary);border-radius:14px;padding:18px 16px;box-shadow:var(--card-shadow);display:flex;flex-direction:column;position:relative;transition:transform 0.15s ease,box-shadow 0.15s ease}.roadmap-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,0.08)}.roadmap-step{font-size:max(14px,0.76rem);font-weight:800;color:var(--primary);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:2px}.roadmap-day{font-size:1.15rem;font-weight:900;color:var(--text);margin-bottom:8px}.roadmap-title{font-size:0.98rem;font-weight:800;color:var(--primary);margin:0 0 6px}.roadmap-desc{font-size:max(14px,0.88rem);color:var(--muted);line-height:1.5;margin:0}.priority-banner{background:linear-gradient(135deg,#fff5f5 0%,#fff 100%);border:2px solid #fed7d7;border-radius:16px;padding:24px 22px;box-shadow:0 8px 24px rgba(229,62,62,0.08);margin-bottom:20px}.priority-tag{display:inline-block;background:var(--bad);color:#fff;font-size:max(14px,0.74rem);font-weight:800;text-transform:uppercase;letter-spacing:0.06em;padding:4px 10px;border-radius:6px;margin-bottom:10px}.priority-title{font-size:1.32rem;font-weight:900;color:#c53030;margin:0 0 8px}.priority-summary{font-size:0.94rem;color:var(--text);line-height:1.6;margin:0 0 16px;font-weight:600}.priority-highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:10px;background:rgba(254,215,215,0.35);border:1px dashed #feb2b2;border-radius:10px;padding:14px 16px;margin-bottom:20px}.priority-hl-item{font-size:max(14px,0.9rem);color:var(--text);line-height:1.5}.priority-action{text-align:center}.critical-section-wrap{margin-top:16px}.critical-head-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;flex-wrap:wrap;gap:8px}.critical-title{font-size:1rem;font-weight:800;color:var(--text);margin:0}.critical-count{font-size:max(14px,0.85rem);font-weight:800;color:var(--bad);background:#fff5f5;border:1px solid #feb2b2;padding:3px 10px;border-radius:999px}.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin-bottom:16px}.tip-card{background:var(--bg2);border:1px solid var(--border);border-top:4px solid var(--accent);border-radius:14px;padding:20px;box-shadow:var(--card-shadow);display:flex;flex-direction:column}.tip-card-head{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.tip-card-badge{align-self:flex-start;font-size:max(14px,0.72rem);font-weight:800;color:var(--accent);background:var(--accent-light);padding:3px 8px;border-radius:6px;text-transform:uppercase}.tip-card h3{margin:0;font-size:1.05rem;color:var(--primary);font-weight:800}.tip-card ul{margin:0;padding-left:18px}.tip-card li{margin-bottom:8px;font-size:max(14px,0.92rem);line-height:1.55;color:var(--text)}.tip-card-more{display:inline-block;margin-top:auto;padding-top:14px;font-size:max(14px,0.85rem);font-weight:700;color:var(--accent);text-decoration:none;border-top:1px dashed var(--border)}.tip-card-more:hover{color:var(--primary);text-decoration:underline}.coming-soon-card{background:linear-gradient(135deg,#f0f7ff 0%,#fbfdff 100%);border:2px dashed #93c5fd;border-radius:18px;padding:26px 22px;box-shadow:0 10px 30px rgba(37,99,235,0.08);position:relative;overflow:hidden}.coming-soon-badge{display:inline-block;background:var(--primary);color:#fff;font-size:max(14px,0.78rem);font-weight:800;letter-spacing:0.05em;padding:4px 12px;border-radius:999px;margin-bottom:14px;box-shadow:0 2px 8px var(--primary-glow)}.coming-soon-body{display:flex;gap:18px;align-items:flex-start}.coming-soon-icon{font-size:3rem;line-height:1;flex-shrink:0}.coming-soon-content{flex:1}.coming-soon-title{font-size:1.25rem;font-weight:900;color:var(--primary);margin:0 0 8px}.coming-soon-desc{font-size:0.94rem;color:var(--text);line-height:1.6;margin:0 0 14px}.coming-soon-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:8px;background:#ffffff;border:1px solid #dbeafe;border-radius:12px;padding:14px 16px}.cs-feat-item{font-size:max(14px,0.88rem);font-weight:600;color:#1e3a8a;line-height:1.45}@media (max-width:640px){.coming-soon-body{flex-direction:column;gap:10px}}.critical-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:10px;margin-bottom:16px}.critical-item{display:flex;align-items:center;gap:12px;background:var(--bg2);border:1px solid var(--border);border-left:4px solid var(--bad);border-radius:12px;padding:12px 14px;text-align:left;box-shadow:var(--card-shadow);transition:transform 0.12s,border-color 0.12s;cursor:pointer}.critical-item:hover{transform:translateY(-2px);border-color:var(--bad)}.crit-num{flex:none;width:38px;height:38px;border-radius:50%;background:var(--bad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;font-size:max(14px,0.92rem)}.crit-text{font-size:max(14px,0.9rem);font-weight:600;line-height:1.45;word-break:break-word}.footer{margin-top:40px;border-top:1px solid var(--border);background:var(--bg2);padding:36px 0 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