.question-container[data-v-c1293cb9]{display:flex;flex-direction:column;gap:16px;margin:0 auto;max-width:1200px}.question-card[data-v-c1293cb9]{background:#fff;border-radius:16px;box-shadow:0 2px 12px #0000000f;padding:32px 24px;text-align:center}.question-header[data-v-c1293cb9]{margin-bottom:16px}.chinese-word[data-v-c1293cb9]{color:#1e293b;font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:48px;font-weight:700;margin:0 0 8px}.pinyin[data-v-c1293cb9]{color:#64748b;font-size:20px;font-style:italic;margin:0}.question-text[data-v-c1293cb9]{color:#64748b;font-size:16px;margin:0}.answer-options[data-v-c1293cb9]{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}.answer-option[data-v-c1293cb9]{align-items:center;background:#fff;border:2px solid #e5e7eb;border-radius:12px;cursor:pointer;display:flex;gap:12px;padding:16px 14px;transition:all .3s ease}.answer-option[data-v-c1293cb9]:hover{border-color:#4a90e2;box-shadow:0 8px 24px #4a90e226;transform:translateY(-2px)}.answer-option.selected[data-v-c1293cb9]{background:linear-gradient(135deg,#4a90e21a,#4a90e20d);border-color:#4a90e2}.answer-option.correct[data-v-c1293cb9]{background:linear-gradient(135deg,#10b9811a,#10b9810d);border-color:#10b981}.answer-option.incorrect[data-v-c1293cb9]{background:linear-gradient(135deg,#ef44441a,#ef44440d);border-color:#ef4444}.option-label[data-v-c1293cb9]{align-items:center;background:#f4f6f9;border-radius:50%;color:#64748b;display:flex;flex-shrink:0;font-size:15px;font-weight:700;height:36px;justify-content:center;line-height:1;min-height:36px;min-width:36px;width:36px}.answer-option.selected .option-label[data-v-c1293cb9]{background:#4a90e2;color:#fff}.answer-option.correct .option-label[data-v-c1293cb9]{background:#10b981;color:#fff}.answer-option.incorrect .option-label[data-v-c1293cb9]{background:#ef4444;color:#fff}.option-text[data-v-c1293cb9]{color:#1e293b;flex:1;font-size:17px;font-weight:500;text-align:left}.option-icon[data-v-c1293cb9]{flex-shrink:0}.explanation[data-v-c1293cb9]{background:linear-gradient(135deg,#e3f2fd,#bbdefb);border-left:3px solid #4a90e2;border-radius:12px;padding:16px}.explanation-header[data-v-c1293cb9]{align-items:center;color:#1e5a7d;display:flex;font-size:14px;font-weight:700;gap:6px;margin-bottom:8px}.explanation-text[data-v-c1293cb9]{color:#1e5a7d;font-size:15px;line-height:1.6;margin:0}@media(max-width:768px){.question-card[data-v-c1293cb9]{padding:24px 20px}.chinese-word[data-v-c1293cb9]{font-size:40px}.pinyin[data-v-c1293cb9]{font-size:18px}.question-text[data-v-c1293cb9]{font-size:15px}.answer-options[data-v-c1293cb9]{gap:10px;grid-template-columns:1fr}.answer-option[data-v-c1293cb9]{border-width:2px;padding:14px 12px}.option-label[data-v-c1293cb9]{font-size:14px;height:32px;width:32px}.option-text[data-v-c1293cb9]{font-size:16px}.explanation[data-v-c1293cb9]{padding:14px}.explanation-text[data-v-c1293cb9]{font-size:14px}}.question-container[data-v-7fa8e901]{display:flex;flex-direction:column;gap:24px;margin:0 auto;max-width:1200px}.question-card[data-v-7fa8e901]{background:#fff;border-radius:20px;box-shadow:0 4px 20px #00000014;padding:48px 32px;text-align:center}.question-header[data-v-7fa8e901]{margin-bottom:20px}.chinese-word[data-v-7fa8e901]{color:#1e293b;font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:64px;font-weight:700;margin:0 0 12px}.pinyin[data-v-7fa8e901]{color:#64748b;font-size:24px;font-style:italic;margin:0}.question-text[data-v-7fa8e901]{color:#64748b;font-size:18px;margin:0}.answer-options[data-v-7fa8e901]{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}.answer-option[data-v-7fa8e901]{align-items:center;background:#fff;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;display:flex;gap:16px;padding:24px 20px;transition:all .3s ease}.answer-option[data-v-7fa8e901]:hover{border-color:#4a90e2;box-shadow:0 8px 24px #4a90e226;transform:translateY(-2px)}.answer-option.selected[data-v-7fa8e901]{background:linear-gradient(135deg,#4a90e21a,#4a90e20d);border-color:#4a90e2}.answer-option.correct[data-v-7fa8e901]{background:linear-gradient(135deg,#10b9811a,#10b9810d);border-color:#10b981}.answer-option.incorrect[data-v-7fa8e901]{background:linear-gradient(135deg,#ef44441a,#ef44440d);border-color:#ef4444}.option-label[data-v-7fa8e901]{align-items:center;background:#f4f6f9;border-radius:50%;color:#64748b;display:flex;flex-shrink:0;font-size:16px;font-weight:700;height:40px;justify-content:center;line-height:1;min-height:40px;min-width:40px;width:40px}.answer-option.selected .option-label[data-v-7fa8e901]{background:#4a90e2;color:#fff}.answer-option.correct .option-label[data-v-7fa8e901]{background:#10b981;color:#fff}.answer-option.incorrect .option-label[data-v-7fa8e901]{background:#ef4444;color:#fff}.option-text[data-v-7fa8e901]{color:#1e293b;flex:1;font-size:20px;font-weight:500;text-align:left}.pinyin-option[data-v-7fa8e901]{font-size:22px;font-style:italic}.option-icon[data-v-7fa8e901]{flex-shrink:0}.explanation[data-v-7fa8e901]{background:linear-gradient(135deg,#e3f2fd,#bbdefb);border-left:4px solid #4a90e2;border-radius:16px;padding:24px}.explanation-header[data-v-7fa8e901]{align-items:center;color:#1e5a7d;display:flex;font-size:16px;font-weight:700;gap:8px;margin-bottom:12px}.explanation-text[data-v-7fa8e901]{color:#1e5a7d;font-size:17px;line-height:1.6;margin:0}@media(max-width:768px){.question-card[data-v-7fa8e901]{padding:32px 24px}.chinese-word[data-v-7fa8e901]{font-size:48px}.pinyin[data-v-7fa8e901]{font-size:20px}.question-text[data-v-7fa8e901]{font-size:16px}.answer-options[data-v-7fa8e901]{gap:12px;grid-template-columns:1fr}.answer-option[data-v-7fa8e901]{border-width:2px;padding:16px}.option-label[data-v-7fa8e901]{font-size:14px;height:32px;width:32px}.option-text[data-v-7fa8e901]{font-size:16px}.pinyin-option[data-v-7fa8e901]{font-size:18px}.explanation[data-v-7fa8e901]{padding:16px}.explanation-text[data-v-7fa8e901]{font-size:15px}}.question-container[data-v-76f93460]{display:flex;flex-direction:column;gap:24px;margin:0 auto;max-width:1200px}.question-card[data-v-76f93460]{background:#fff;border-radius:20px;box-shadow:0 4px 20px #00000014;padding:48px 32px;text-align:center}.question-text-large[data-v-76f93460]{color:#1e293b;font-size:32px;font-weight:700;line-height:1.4;margin:0 0 16px}.question-text[data-v-76f93460]{color:#64748b;font-size:18px;margin:0}.answer-options[data-v-76f93460]{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}.answer-option[data-v-76f93460]{align-items:center;background:#fff;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;display:flex;gap:16px;padding:24px 20px;transition:all .3s ease}.answer-option[data-v-76f93460]:hover{border-color:#4a90e2;box-shadow:0 8px 24px #4a90e226;transform:translateY(-2px)}.answer-option.selected[data-v-76f93460]{background:linear-gradient(135deg,#4a90e21a,#4a90e20d);border-color:#4a90e2}.answer-option.correct[data-v-76f93460]{background:linear-gradient(135deg,#10b9811a,#10b9810d);border-color:#10b981}.answer-option.incorrect[data-v-76f93460]{background:linear-gradient(135deg,#ef44441a,#ef44440d);border-color:#ef4444}.option-label[data-v-76f93460]{align-items:center;background:#f4f6f9;border-radius:50%;color:#64748b;display:flex;flex-shrink:0;font-size:16px;font-weight:700;height:40px;justify-content:center;line-height:1;min-height:40px;min-width:40px;width:40px}.answer-option.selected .option-label[data-v-76f93460]{background:#4a90e2;color:#fff}.answer-option.correct .option-label[data-v-76f93460]{background:#10b981;color:#fff}.answer-option.incorrect .option-label[data-v-76f93460]{background:#ef4444;color:#fff}.option-text[data-v-76f93460]{color:#1e293b;flex:1;font-size:20px;font-weight:500;text-align:left}.chinese-option[data-v-76f93460]{font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:28px;font-weight:600}.option-icon[data-v-76f93460]{flex-shrink:0}.explanation[data-v-76f93460]{background:linear-gradient(135deg,#e3f2fd,#bbdefb);border-left:4px solid #4a90e2;border-radius:16px;padding:24px}.explanation-header[data-v-76f93460]{align-items:center;color:#1e5a7d;display:flex;font-size:16px;font-weight:700;gap:8px;margin-bottom:12px}.explanation-text[data-v-76f93460]{color:#1e5a7d;font-size:17px;line-height:1.6;margin:0}@media(max-width:768px){.question-card[data-v-76f93460]{padding:32px 24px}.question-text-large[data-v-76f93460]{font-size:24px}.question-text[data-v-76f93460]{font-size:16px}.answer-options[data-v-76f93460]{gap:12px;grid-template-columns:1fr}.answer-option[data-v-76f93460]{padding:16px}.option-label[data-v-76f93460]{font-size:14px;height:32px;width:32px}.option-text[data-v-76f93460]{font-size:16px}.chinese-option[data-v-76f93460]{font-size:20px}.explanation[data-v-76f93460]{padding:16px}.explanation-text[data-v-76f93460]{font-size:15px}}.question-container[data-v-ddfd6d2c]{display:flex;flex-direction:column;gap:16px;margin:0 auto;max-width:1200px}.question-card[data-v-ddfd6d2c]{background:#fff;border-radius:12px;box-shadow:0 2px 12px #0000000f;padding:24px 20px;text-align:center}.question-text[data-v-ddfd6d2c]{color:#64748b;font-size:14px;font-weight:500;margin:0 0 16px}.audio-button-container[data-v-ddfd6d2c]{display:flex;justify-content:center;margin-bottom:16px}.audio-play-btn[data-v-ddfd6d2c]{background:transparent;border:none;cursor:pointer;height:100px;position:relative;transition:transform .3s ease;width:100px}.audio-play-btn[data-v-ddfd6d2c]:hover{transform:scale(1.05)}.audio-play-btn.playing[data-v-ddfd6d2c]{animation:pulse-ddfd6d2c 1.6s ease-in-out infinite}@keyframes pulse-ddfd6d2c{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}.progress-ring[data-v-ddfd6d2c]{left:0;position:absolute;top:0;transform:rotate(-90deg)}.progress-ring-circle-bg[data-v-ddfd6d2c]{fill:none;stroke:#e0e0e0;stroke-width:2.5}.progress-ring-circle[data-v-ddfd6d2c]{fill:none;stroke:#4a90e2;stroke-dasharray:289.03;stroke-dashoffset:289.03;stroke-linecap:round;stroke-width:2.5;transition:stroke-dashoffset .1s linear}.audio-icon[data-v-ddfd6d2c]{align-items:center;background:linear-gradient(135deg,#4a90e2,#357abd);border-radius:50%;box-shadow:0 4px 16px #4a90e266;height:48px;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:48px}.audio-icon[data-v-ddfd6d2c],.speed-buttons[data-v-ddfd6d2c]{display:flex;justify-content:center}.speed-buttons[data-v-ddfd6d2c]{gap:10px;margin-bottom:12px}.speed-btn[data-v-ddfd6d2c]{background:#e0e0e0;border:none;border-radius:16px;color:#666;cursor:pointer;font-size:13px;font-weight:600;padding:6px 14px;transition:all .3s ease}.speed-btn[data-v-ddfd6d2c]:hover{background:#d0d0d0}.speed-btn.active[data-v-ddfd6d2c]{background:#4a90e2;color:#fff}.answer-reveal[data-v-ddfd6d2c]{border-top:1px solid #e5e7eb;margin-top:16px;padding-top:16px}.reveal-character[data-v-ddfd6d2c]{color:#1e293b;font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:42px;font-weight:700;margin-bottom:6px}.reveal-pinyin[data-v-ddfd6d2c]{color:#64748b;font-size:17px;font-weight:500}.answer-options[data-v-ddfd6d2c]{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}.answer-option[data-v-ddfd6d2c]{align-items:center;background:#fff;border:2px solid #e5e7eb;border-radius:10px;cursor:pointer;display:flex;gap:10px;padding:14px 12px;transition:all .3s ease}.answer-option[data-v-ddfd6d2c]:hover{border-color:#4a90e2;transform:translateY(-2px)}.answer-option.selected[data-v-ddfd6d2c]{background:linear-gradient(135deg,#4a90e214,#4a90e208);border-color:#4a90e2}.answer-option.correct[data-v-ddfd6d2c]{background:linear-gradient(135deg,#10b98114,#10b98108);border-color:#10b981}.answer-option.incorrect[data-v-ddfd6d2c]{background:linear-gradient(135deg,#ef444414,#ef444408);border-color:#ef4444}.option-label[data-v-ddfd6d2c]{align-items:center;background:#f4f6f9;border-radius:50%;color:#64748b;display:flex;flex-shrink:0;font-size:14px;font-weight:700;height:30px;justify-content:center;min-width:30px;width:30px}.answer-option.selected .option-label[data-v-ddfd6d2c]{background:#4a90e2;color:#fff}.answer-option.correct .option-label[data-v-ddfd6d2c]{background:#10b981;color:#fff}.answer-option.incorrect .option-label[data-v-ddfd6d2c]{background:#ef4444;color:#fff}.option-text[data-v-ddfd6d2c]{color:#1e293b;flex:1;font-size:15px;font-weight:500;line-height:1.4;text-align:left}.option-icon[data-v-ddfd6d2c]{flex-shrink:0}@media(max-width:768px){.question-card[data-v-ddfd6d2c]{padding:20px 16px}.audio-play-btn[data-v-ddfd6d2c],.progress-ring[data-v-ddfd6d2c]{height:90px;width:90px}.progress-ring-circle[data-v-ddfd6d2c],.progress-ring-circle-bg[data-v-ddfd6d2c]{r:42}.audio-icon[data-v-ddfd6d2c]{height:42px;width:42px}.question-text[data-v-ddfd6d2c]{font-size:13px}.reveal-character[data-v-ddfd6d2c]{font-size:36px}.reveal-pinyin[data-v-ddfd6d2c]{font-size:15px}.answer-options[data-v-ddfd6d2c]{gap:10px;grid-template-columns:1fr}.answer-option[data-v-ddfd6d2c]{gap:10px;padding:12px 10px}.option-label[data-v-ddfd6d2c]{font-size:13px;height:28px;width:28px}.option-text[data-v-ddfd6d2c]{font-size:14px}.speed-btn[data-v-ddfd6d2c]{font-size:12px;padding:5px 12px}}.question-container[data-v-15efe32e]{display:flex;flex-direction:column;gap:24px;margin:0 auto;max-width:1200px}.question-card[data-v-15efe32e]{background:#fff;border-radius:20px;box-shadow:0 4px 20px #00000014;padding:48px 32px;text-align:center}.question-text-sentence[data-v-15efe32e]{color:#1e293b;font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:24px;font-weight:600;line-height:1.6;margin:0 0 20px}.question-text[data-v-15efe32e]{color:#64748b;font-size:18px;margin:0}.answer-options[data-v-15efe32e]{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}.answer-option[data-v-15efe32e]{align-items:center;background:#fff;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;display:flex;gap:16px;padding:24px 20px;transition:all .3s ease}.answer-option[data-v-15efe32e]:hover{border-color:#4a90e2;box-shadow:0 8px 24px #4a90e226;transform:translateY(-2px)}.answer-option.selected[data-v-15efe32e]{background:linear-gradient(135deg,#4a90e21a,#4a90e20d);border-color:#4a90e2}.answer-option.correct[data-v-15efe32e]{background:linear-gradient(135deg,#10b9811a,#10b9810d);border-color:#10b981}.answer-option.incorrect[data-v-15efe32e]{background:linear-gradient(135deg,#ef44441a,#ef44440d);border-color:#ef4444}.option-label[data-v-15efe32e]{align-items:center;background:#f4f6f9;border-radius:50%;color:#64748b;display:flex;flex-shrink:0;font-size:16px;font-weight:700;height:40px;justify-content:center;line-height:1;min-height:40px;min-width:40px;width:40px}.answer-option.selected .option-label[data-v-15efe32e]{background:#4a90e2;color:#fff}.answer-option.correct .option-label[data-v-15efe32e]{background:#10b981;color:#fff}.answer-option.incorrect .option-label[data-v-15efe32e]{background:#ef4444;color:#fff}.option-text[data-v-15efe32e]{color:#1e293b;flex:1;font-size:20px;font-weight:500;text-align:left}.chinese-option[data-v-15efe32e]{font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:28px;font-weight:600}.option-icon[data-v-15efe32e]{flex-shrink:0}.explanation[data-v-15efe32e]{background:linear-gradient(135deg,#e3f2fd,#bbdefb);border-left:4px solid #4a90e2;border-radius:16px;padding:24px}.explanation-header[data-v-15efe32e]{align-items:center;color:#1e5a7d;display:flex;font-size:16px;font-weight:700;gap:8px;margin-bottom:12px}.explanation-text[data-v-15efe32e]{color:#1e5a7d;font-size:17px;line-height:1.6;margin:0}@media(max-width:768px){.question-card[data-v-15efe32e]{padding:32px 24px}.question-text-sentence[data-v-15efe32e]{font-size:20px;margin-bottom:16px}.question-text[data-v-15efe32e]{font-size:16px}.answer-options[data-v-15efe32e]{gap:12px;grid-template-columns:1fr}.answer-option[data-v-15efe32e]{border-width:2px;padding:16px}.option-label[data-v-15efe32e]{font-size:14px;height:32px;width:32px}.option-text[data-v-15efe32e]{font-size:16px}.chinese-option[data-v-15efe32e]{font-size:20px}.explanation[data-v-15efe32e]{padding:16px}.explanation-text[data-v-15efe32e]{font-size:15px}}.quiz-container[data-v-a0bcc696]{background:#f0f4f8;min-height:100vh}.quiz-header-safe[data-v-a0bcc696]{background:#fff;box-shadow:0 1px #e2e8f0,0 4px 16px #0000000d;position:sticky;top:0;z-index:100}.quiz-header[data-v-a0bcc696]{gap:14px;justify-content:space-between;margin:0 auto;max-width:1200px;padding:12px 28px}.breadcrumb[data-v-a0bcc696],.quiz-header[data-v-a0bcc696]{align-items:center;display:flex}.breadcrumb[data-v-a0bcc696]{flex:1;gap:6px;min-width:0}.bc-item[data-v-a0bcc696]{align-items:center;display:inline-flex;font-size:13px;font-weight:500;text-decoration:none;transition:color .2s}.bc-home-icon[data-v-a0bcc696],.bc-item[data-v-a0bcc696]{color:#64748b}.bc-active[data-v-a0bcc696],.bc-link[data-v-a0bcc696]:hover,.bc-link:hover .bc-home-icon[data-v-a0bcc696]{color:#1e293b}.bc-active[data-v-a0bcc696]{font-weight:600}.bc-sep[data-v-a0bcc696]{color:#cbd5e1;flex-shrink:0;font-size:12px}.bc-level-pill[data-v-a0bcc696]{border:1px solid;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.3px;padding:2px 10px}.header-right[data-v-a0bcc696]{align-items:center;display:flex;flex-shrink:0;gap:10px}.header-progress-count[data-v-a0bcc696]{align-items:baseline;background:#f1f5f9;border-radius:10px;display:flex;flex-shrink:0;gap:3px;padding:6px 14px}.hpc-current[data-v-a0bcc696]{color:#1e293b;font-size:18px;font-weight:800}.hpc-sep[data-v-a0bcc696]{color:#cbd5e1;font-size:14px;font-weight:300}.hpc-total[data-v-a0bcc696]{color:#94a3b8;font-size:14px;font-weight:500}.quiz-layout[data-v-a0bcc696]{display:grid;gap:0;grid-template-columns:1fr 280px;margin:0 auto;max-width:1200px;min-height:calc(100vh - 60px)}.quiz-main[data-v-a0bcc696]{flex:1;min-width:0}.quiz-sidebar[data-v-a0bcc696]{border-left:1px solid #e2e8f0;height:calc(100vh - 52px);overflow-y:auto;top:52px}.quiz-sidebar[data-v-a0bcc696],.sidebar-header[data-v-a0bcc696]{background:#fff;position:sticky}.sidebar-header[data-v-a0bcc696]{align-items:center;border-bottom:1px solid #f1f5f9;color:#475569;display:flex;font-size:13px;font-weight:700;gap:8px;padding:14px 16px;top:0;z-index:1}.sidebar-lessons[data-v-a0bcc696]{padding:6px}.sidebar-lesson[data-v-a0bcc696]{margin-bottom:2px}.sidebar-lesson.active>.sl-btn[data-v-a0bcc696]{background:#eff6ff;color:#3b82f6;font-weight:700}.sl-btn[data-v-a0bcc696]{align-items:center;background:transparent;border:none;border-radius:8px;color:#334155;cursor:pointer;display:flex;font-size:13px;font-weight:500;gap:8px;padding:8px 10px;transition:all .15s;width:100%}.sl-btn.expanded[data-v-a0bcc696],.sl-btn[data-v-a0bcc696]:hover,.sl-num[data-v-a0bcc696]{background:#f1f5f9}.sl-num[data-v-a0bcc696]{align-items:center;border-radius:6px;color:#64748b;display:flex;flex-shrink:0;font-size:11px;font-weight:700;height:22px;justify-content:center;width:22px}.sidebar-lesson.active .sl-num[data-v-a0bcc696]{background:#3b82f6;color:#fff}.sl-title[data-v-a0bcc696]{flex:1;text-align:left}.sl-arrow[data-v-a0bcc696]{color:#94a3b8;flex-shrink:0}.sl-practice-list[data-v-a0bcc696]{padding:2px 0 6px 14px}.sl-practice-item[data-v-a0bcc696]{align-items:center;border-radius:6px;color:#64748b;display:flex;font-size:12px;font-weight:500;gap:6px;justify-content:flex-start;overflow:hidden;padding:6px 10px;text-align:left;text-decoration:none;transition:all .15s;white-space:nowrap}.sl-practice-item[data-v-a0bcc696]:hover{background:#f1f5f9;color:#334155}.sl-practice-item.current[data-v-a0bcc696]{background:#eff6ff;color:#3b82f6;font-weight:700}.sl-left[data-v-a0bcc696]{align-items:center;display:flex;flex:1;gap:6px;min-width:0}.sl-right[data-v-a0bcc696]{flex-shrink:0;margin-left:auto}.sl-done-icon[data-v-a0bcc696]{color:#10b981}.sl-num.locked[data-v-a0bcc696]{background:#f1f5f9;color:#94a3b8}.sidebar-lesson .sl-btn[data-v-a0bcc696]:has(.sl-num.locked){opacity:.6}.upgrade-modal[data-v-a0bcc696]{background:#fff;border-radius:20px;box-shadow:0 20px 60px #00000026;max-width:400px;padding:32px;text-align:center;width:90%}.upgrade-icon-wrap[data-v-a0bcc696]{font-size:48px;margin-bottom:16px}.upgrade-modal h3[data-v-a0bcc696]{color:#1e293b;font-size:18px;font-weight:700;margin:0 0 8px}.upgrade-modal p[data-v-a0bcc696]{color:#64748b;font-size:14px;line-height:1.5;margin:0 0 24px}.btn-upgrade[data-v-a0bcc696]{align-items:center;background:linear-gradient(135deg,#f59e0b,#f97316);border:none;border-radius:10px;color:#fff;cursor:pointer;display:inline-flex;font-size:14px;font-weight:700;justify-content:center;padding:11px 24px;text-decoration:none;transition:all .2s}.btn-upgrade[data-v-a0bcc696]:hover{filter:brightness(1.1)}.progress-track[data-v-a0bcc696]{background:#e9eef4;height:4px}.progress-fill[data-v-a0bcc696]{background:linear-gradient(90deg,#4a90e2,#5b65f8);height:100%;transition:width .35s ease}.loading-state[data-v-a0bcc696]{align-items:center;display:flex;flex-direction:column;gap:16px;justify-content:center;min-height:60vh}.spinner[data-v-a0bcc696]{animation:spin-a0bcc696 .8s linear infinite;border:3px solid #e2e8f0;border-radius:50%;border-top-color:#4a90e2;height:44px;width:44px}@keyframes spin-a0bcc696{to{transform:rotate(1turn)}}.loading-state p[data-v-a0bcc696]{color:#64748b;font-size:14px;margin:0}.quiz-body[data-v-a0bcc696]{padding:28px 24px 60px}.quiz-content-wrap[data-v-a0bcc696]{margin:0 auto;max-width:680px}.action-row[data-v-a0bcc696]{display:flex;margin-top:24px}.action-row[data-v-a0bcc696],.btn[data-v-a0bcc696]{justify-content:center}.btn[data-v-a0bcc696]{align-items:center;border:none;border-radius:12px;cursor:pointer;display:inline-flex;font-size:15px;font-weight:700;gap:8px;padding:13px 32px;transition:all .25s ease}.btn-check[data-v-a0bcc696]{background:linear-gradient(135deg,#4a90e2,#357abd);box-shadow:0 4px 14px #4a90e24d;color:#fff;min-width:200px}.btn-check[data-v-a0bcc696]:disabled{box-shadow:none;cursor:not-allowed;opacity:.45}.btn-check[data-v-a0bcc696]:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}.btn-next[data-v-a0bcc696]{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 14px #10b9814d;color:#fff;min-width:200px}.btn-next[data-v-a0bcc696]:hover{filter:brightness(1.08);transform:translateY(-1px)}.result-page[data-v-a0bcc696]{padding:28px 24px 80px}.result-wrap[data-v-a0bcc696]{display:flex;flex-direction:column;gap:20px;margin:0 auto;max-width:600px}.score-card[data-v-a0bcc696]{background:#fff;border-radius:20px;box-shadow:0 2px 16px #0000000f;padding:32px 24px 24px;text-align:center}.score-ring-wrap[data-v-a0bcc696]{height:120px;margin:0 auto 20px;position:relative;width:120px}.score-ring[data-v-a0bcc696]{height:100%;width:100%}.score-ring-fill[data-v-a0bcc696]{transition:stroke-dasharray .8s cubic-bezier(.4,0,.2,1)}.score-ring-text[data-v-a0bcc696]{align-items:center;display:flex;gap:1px;inset:0;justify-content:center;position:absolute}.score-num[data-v-a0bcc696]{color:#0f172a;font-size:32px;font-weight:800;line-height:1}.score-pct[data-v-a0bcc696]{color:#94a3b8;font-size:16px;font-weight:700;margin-top:6px}.result-title[data-v-a0bcc696]{color:#0f172a;font-size:22px;font-weight:800;margin:0 0 6px}.result-message[data-v-a0bcc696]{color:#64748b;font-size:13.5px;line-height:1.5;margin:0 0 20px}.result-stats[data-v-a0bcc696]{background:#f8fafc;border-radius:14px;gap:0;padding:14px 20px}.result-stats[data-v-a0bcc696],.rs-item[data-v-a0bcc696]{align-items:center;display:flex;justify-content:center}.rs-item[data-v-a0bcc696]{flex:1;gap:6px}.rs-value[data-v-a0bcc696]{color:#1e293b;font-size:20px;font-weight:800;line-height:1}.rs-correct .rs-value[data-v-a0bcc696]{color:#10b981}.rs-incorrect .rs-value[data-v-a0bcc696]{color:#ef4444}.rs-label[data-v-a0bcc696]{color:#94a3b8;font-size:12px;font-weight:600}.rs-divider[data-v-a0bcc696]{background:#e2e8f0;height:28px;width:1px}.type-stats[data-v-a0bcc696]{background:#f8fafc;border-radius:12px;margin-top:16px;padding:14px;text-align:left}.type-stats-title[data-v-a0bcc696]{color:#64748b;font-size:12px;font-weight:700;letter-spacing:.6px;margin:0 0 12px;text-transform:uppercase}.type-stat-row[data-v-a0bcc696]{align-items:center;border-bottom:1px solid #eef2ff;display:grid;gap:10px;grid-template-columns:110px 1fr 40px;padding:6px 0}.type-stat-row[data-v-a0bcc696]:last-child{border-bottom:none}.type-stat-label[data-v-a0bcc696]{color:#334155;font-size:12px;font-weight:500}.type-stat-bar-wrap[data-v-a0bcc696]{flex:1}.type-stat-bar-bg[data-v-a0bcc696]{background:#e2e8f0;border-radius:3px;height:6px;overflow:hidden}.type-stat-bar-fill[data-v-a0bcc696]{background:linear-gradient(90deg,#4a90e2,#5b65f8);border-radius:3px;height:100%;transition:width .5s ease}.type-stat-value[data-v-a0bcc696]{color:#4a90e2;font-size:12px;font-weight:700}.result-actions[data-v-a0bcc696]{display:flex;flex-direction:column;gap:10px}.btn-action[data-v-a0bcc696]{align-items:center;border:none;border-radius:14px;cursor:pointer;display:flex;font-size:15px;font-weight:700;gap:10px;justify-content:center;padding:14px 24px;transition:all .2s ease}.btn-retry-wrong[data-v-a0bcc696]{background:linear-gradient(135deg,#f97316,#ea580c);box-shadow:0 4px 14px #f973164d;color:#fff}.btn-retry-wrong[data-v-a0bcc696]:hover{filter:brightness(1.08);transform:translateY(-1px)}.btn-save-wrong[data-v-a0bcc696]{background:linear-gradient(135deg,#8b5cf6,#7c3aed);box-shadow:0 4px 14px #8b5cf64d;color:#fff}.btn-save-wrong[data-v-a0bcc696]:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}.btn-save-wrong.saved[data-v-a0bcc696]{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 14px #10b9814d;cursor:default}.btn-retry-all[data-v-a0bcc696]{background:linear-gradient(135deg,#4a90e2,#357abd);box-shadow:0 3px 12px #4a90e240;color:#fff}.btn-retry-all[data-v-a0bcc696]:hover{filter:brightness(1.08);transform:translateY(-1px)}.btn-back[data-v-a0bcc696]{background:#f1f5f9;border:1px solid #e2e8f0;color:#475569}.btn-back[data-v-a0bcc696]:hover{background:#e2e8f0}.review-section[data-v-a0bcc696]{background:#fff;border-radius:16px;box-shadow:0 1px 8px #0000000a;overflow:hidden}.review-toggle[data-v-a0bcc696]{align-items:center;background:transparent;border:none;color:#334155;cursor:pointer;display:flex;font-size:14px;font-weight:700;gap:8px;padding:16px 20px;transition:background .15s;width:100%}.review-toggle span[data-v-a0bcc696]{flex:1;text-align:left}.review-toggle[data-v-a0bcc696]:hover{background:#f8fafc}.review-list[data-v-a0bcc696]{padding:0 16px 16px}.review-card[data-v-a0bcc696]{background:#fff;border-left:4px solid;border-radius:12px;box-shadow:0 1px 4px #0000000d;margin-bottom:10px;padding:14px 16px;transition:box-shadow .2s}.review-card[data-v-a0bcc696]:hover{box-shadow:0 3px 12px #00000014}.review-card.correct[data-v-a0bcc696]{background:#f0fdf4;border-left-color:#10b981}.review-card.incorrect[data-v-a0bcc696]{background:#fef2f2;border-left-color:#ef4444}.review-header[data-v-a0bcc696]{justify-content:space-between;margin-bottom:8px}.review-header[data-v-a0bcc696],.rh-left[data-v-a0bcc696]{align-items:center;display:flex}.rh-left[data-v-a0bcc696]{gap:8px}.review-num[data-v-a0bcc696]{align-items:center;background:#e2e8f0;border-radius:50%;color:#475569;display:flex;font-size:11px;font-weight:700;height:22px;justify-content:center;width:22px}.review-type-badge[data-v-a0bcc696]{background:#eff6ff;border-radius:6px;color:#4a90e2;font-size:11px;font-weight:600;padding:2px 8px}.review-char[data-v-a0bcc696]{color:#1e293b;font-family:Noto Sans SC,Microsoft YaHei,sans-serif;font-size:22px;font-weight:700;margin-bottom:4px}.review-question-text[data-v-a0bcc696]{color:#64748b;font-size:13px;margin-bottom:8px}.review-answer-row[data-v-a0bcc696]{align-items:center;display:flex;gap:10px;margin-top:6px}.review-answer-label[data-v-a0bcc696]{color:#94a3b8;font-size:11px;font-weight:600;white-space:nowrap}.ans-correct[data-v-a0bcc696]{color:#10b981}.ans-correct[data-v-a0bcc696],.ans-wrong[data-v-a0bcc696]{font-size:13.5px;font-weight:700}.ans-wrong[data-v-a0bcc696]{color:#ef4444}.ans-verdict[data-v-a0bcc696]{margin-left:4px}.modal-overlay[data-v-a0bcc696]{align-items:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172a8c;display:flex;inset:0;justify-content:center;padding:16px;position:fixed;z-index:1000}.exit-modal[data-v-a0bcc696]{animation:scaleIn-a0bcc696 .25s cubic-bezier(.34,1.56,.64,1);background:#fff;border-radius:18px;box-shadow:0 20px 60px #0003;max-width:380px;padding:28px 24px;text-align:center;width:100%}@keyframes scaleIn-a0bcc696{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.exit-icon-wrap[data-v-a0bcc696]{align-items:center;background:#fffbeb;border-radius:50%;display:flex;height:60px;justify-content:center;margin:0 auto 14px;width:60px}.exit-modal h3[data-v-a0bcc696]{color:#1e293b;font-size:18px;font-weight:700;margin:0 0 6px}.exit-modal p[data-v-a0bcc696]{color:#64748b;font-size:13px;margin:0 0 20px}.modal-actions[data-v-a0bcc696]{display:grid;gap:10px;grid-template-columns:1fr 1fr}.btn-danger-solid[data-v-a0bcc696]{align-items:center;background:#ef4444;border:none;border-radius:10px;color:#fff;cursor:pointer;display:inline-flex;font-size:14px;font-weight:700;justify-content:center;padding:11px 20px;transition:all .2s}.btn-danger-solid[data-v-a0bcc696]:hover{background:#dc2626}@media(max-width:900px){.quiz-layout[data-v-a0bcc696]{grid-template-columns:1fr}.quiz-sidebar[data-v-a0bcc696]{display:none}.result-wrap[data-v-a0bcc696]{max-width:680px}}@media(max-width:640px){.quiz-header[data-v-a0bcc696]{padding:10px 16px}.quiz-body[data-v-a0bcc696],.result-page[data-v-a0bcc696]{padding:16px 16px 60px}.result-stats[data-v-a0bcc696]{gap:6px}.rs-value[data-v-a0bcc696]{font-size:22px}.breadcrumb .bc-item[data-v-a0bcc696]{font-size:12px}}