.lesson-mdc-content[data-v-3ad1c739]{margin:0 auto;max-width:650px;padding:1.5rem 1rem}.lesson-mdc-content[data-v-3ad1c739] h1{color:#2c3e50;font-family:Playfair Display,serif;font-size:1.6rem;margin:0 0 .5rem}.lesson-mdc-content[data-v-3ad1c739] h2{border-bottom:2px solid #f0f0f0;color:#2c3e50;font-family:Quicksand,sans-serif;font-size:1.15rem;font-weight:700;margin:1.5rem 0 .75rem;padding-bottom:.4rem}.lesson-mdc-content[data-v-3ad1c739] h3{color:#34495e;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:700;margin:1.25rem 0 .5rem}.lesson-mdc-content[data-v-3ad1c739] p{color:#444;font-family:Quicksand,sans-serif;font-size:.9rem;line-height:1.7;margin:0 0 .75rem}.lesson-mdc-content[data-v-3ad1c739] table{border-collapse:collapse;font-family:Quicksand,sans-serif;font-size:.85rem;margin:.75rem 0 1rem;width:100%}.lesson-mdc-content[data-v-3ad1c739] th{background:#f8f8f8;border-bottom:2px solid #e0e0e0;color:#2c3e50;font-weight:700;padding:.5rem .75rem;text-align:left}.lesson-mdc-content[data-v-3ad1c739] td{border-bottom:1px solid #f0f0f0;color:#444;padding:.45rem .75rem}.lesson-mdc-content[data-v-3ad1c739] strong{color:#2c3e50}.lesson-mdc-content[data-v-3ad1c739] ol,.lesson-mdc-content[data-v-3ad1c739] ul{margin:0 0 .75rem;padding-left:1.5rem}.lesson-mdc-content[data-v-3ad1c739] li{color:#444;font-family:Quicksand,sans-serif;font-size:.88rem;line-height:1.7;margin-bottom:.3rem}.lesson-mdc-content[data-v-3ad1c739] .callout{border-radius:8px;font-family:Quicksand,sans-serif;font-size:.85rem;line-height:1.6;margin:.75rem 0;padding:.85rem 1rem}.lesson-mdc-content[data-v-3ad1c739] .callout[type=tip]{background:#eaf7ed;border-left:3px solid #27ae60;color:#1e7e4a}.lesson-mdc-content[data-v-3ad1c739] .callout[type=info]{background:#e8f0fe;border-left:3px solid #2980b9;color:#1a5f8b}.lesson-intro[data-v-42424403]{margin:0 auto;max-width:600px;padding:2rem 1rem 6rem}.lesson-intro-header[data-v-42424403]{margin-bottom:2rem;position:relative;text-align:center}.intro-close[data-v-42424403]{background:none;border:none;color:#7f8c8d;cursor:pointer;padding:.3rem;position:absolute;right:0;top:0;transition:color .15s}.intro-close[data-v-42424403]:hover{color:#c0392b}.intro-kicker[data-v-42424403]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:600;letter-spacing:.08em;margin:0 0 .5rem;text-transform:uppercase}.intro-title[data-v-42424403]{color:#2c3e50;font-family:Playfair Display,Georgia,serif;font-size:1.8rem;font-weight:400;margin:0 0 .5rem}.intro-desc[data-v-42424403]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:500;line-height:1.6;margin:0 0 1rem}.intro-meta[data-v-42424403]{display:flex;flex-wrap:wrap;gap:1.25rem;justify-content:center}.intro-meta span[data-v-42424403]{align-items:center;color:#aaa;display:flex;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:600;gap:.3rem}.intro-meta svg[data-v-42424403]{color:#d4a855}.intro-preview[data-v-42424403]{background:#fff;border-radius:14px;box-shadow:0 2px 12px #0000000f;margin-bottom:2rem;padding:1.5rem}.intro-preview-title[data-v-42424403]{color:#aaa;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:700;letter-spacing:.1em;margin:0 0 1rem;text-transform:uppercase}.intro-word-grid[data-v-42424403]{display:grid;gap:.75rem;grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.intro-word[data-v-42424403]{align-items:center;background:#f8f8f8;border-radius:10px;display:flex;flex-direction:column;gap:.2rem;padding:.85rem .5rem}.intro-word-hanzi[data-v-42424403]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:1.5rem;font-weight:500}.intro-word-pinyin[data-v-42424403]{color:#c0392b;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:600}.intro-word-meaning[data-v-42424403]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.72rem;font-weight:500;text-align:center}.intro-actions[data-v-42424403]{text-align:center}.intro-start-btn[data-v-42424403]{align-items:center;background:#c0392b;border:none;border-radius:10px;color:#fff;cursor:pointer;display:inline-flex;font-family:Quicksand,sans-serif;font-size:.95rem;font-weight:700;gap:.5rem;padding:.85rem 2.5rem;transition:background .15s,transform .15s}.intro-start-btn[data-v-42424403]:hover{background:#a93226;transform:translateY(-1px)}.intro-content-toggle[data-v-42424403]{margin-bottom:1.5rem;text-align:center}.intro-read-btn[data-v-42424403]{background:none;border:1px solid #e0e0e0;border-radius:8px;color:#7f8c8d;cursor:pointer;font-family:Quicksand,sans-serif;font-size:.82rem;font-weight:600;padding:.5rem 1.25rem;transition:border-color .15s,color .15s}.intro-read-btn[data-v-42424403]:hover{border-color:#c0392b;color:#c0392b}.cp-badge[data-v-6b5c0748]{align-items:center;display:inline-flex;font-family:Quicksand,sans-serif;gap:.25rem;transition:transform .15s ease}.cp-badge--done[data-v-6b5c0748]{transform:scale(1.05)}.cp-badge-label[data-v-6b5c0748]{color:#7f8c8d;font-size:.72rem;font-weight:500}.cp-badge--done .cp-badge-label[data-v-6b5c0748]{color:#d4a855;font-weight:600}.lesson-step[data-v-44c49c43]{min-height:100dvh}.lesson-fixed-top[data-v-44c49c43],.lesson-step[data-v-44c49c43]{display:flex;flex-direction:column}.lesson-fixed-top[data-v-44c49c43]{left:0;position:fixed;right:0;top:83px;z-index:99}.lesson-fixed-top[data-v-44c49c43]>*{flex-shrink:0}.sticky-cta-bar[data-v-44c49c43]{align-items:center;background:#c0392b;cursor:pointer;display:flex;gap:.75rem;justify-content:center;padding:.45rem 1.5rem}.sticky-cta-text[data-v-44c49c43]{color:#ffffffe6;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:600;letter-spacing:.02em}.sticky-cta-btn[data-v-44c49c43]{background:#fff;border-radius:12px;color:#c0392b;font-family:Quicksand,sans-serif;font-size:.68rem;font-weight:700;letter-spacing:.08em;line-height:1.4;padding:.2rem .75rem;text-transform:uppercase;transition:background .2s,color .2s}.sticky-cta-bar:hover .sticky-cta-btn[data-v-44c49c43]{background:#f5e6c8}.sticky-cta-bar--dashboard[data-v-44c49c43]{cursor:default;gap:0;padding:0}.sticky-dash-inner[data-v-44c49c43]{display:flex;justify-content:space-between;margin:0 auto;max-width:1200px;width:100%}.sticky-dash-tab[data-v-44c49c43]{align-items:center;background:none;border:none;color:#ffffffbf;cursor:pointer;display:flex;flex:1;gap:.5rem;justify-content:center;padding:.55rem 1rem;transition:background .15s,color .15s}.sticky-dash-tab[data-v-44c49c43]:hover{background:#ffffff1a;color:#fff}.sticky-dash-tab--active[data-v-44c49c43]{background:#ffffff2e;color:#fff}.sticky-dash-icon[data-v-44c49c43]{height:18px;width:18px}.sticky-dash-label[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}@media(max-width:600px){.sticky-cta-bar[data-v-44c49c43]{gap:.5rem;padding:.35rem .75rem}.sticky-cta-text[data-v-44c49c43]{font-size:.72rem}.sticky-cta-btn[data-v-44c49c43]{font-size:.62rem;padding:.18rem .6rem}.sticky-cta-bar--dashboard[data-v-44c49c43]{padding:0}.sticky-dash-inner[data-v-44c49c43]{padding:0 .35rem}.sticky-dash-tab[data-v-44c49c43]{gap:0;padding:.5rem .25rem}.sticky-dash-icon[data-v-44c49c43]{height:22px;width:22px}.sticky-dash-label[data-v-44c49c43]{display:none}}.dash-panel[data-v-44c49c43]{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffffd9;inset:0;overflow-y:auto;padding-top:5.5rem;position:fixed;z-index:98}.dash-panel-inner[data-v-44c49c43]{background:#fff;border-radius:0 0 16px 16px;box-shadow:0 16px 64px #0000001f,0 4px 16px #0000000f,0 0 0 1px #0000000a;margin:0 auto;max-height:calc(100vh - 7rem);max-width:1200px;overflow-y:auto;padding:1.5rem 1rem 2rem;scrollbar-color:#c0392b transparent;scrollbar-width:thin}.sticky-cta-enter-active[data-v-44c49c43],.sticky-cta-leave-active[data-v-44c49c43]{transition:transform 60ms linear}.sticky-cta-enter-from[data-v-44c49c43],.sticky-cta-leave-to[data-v-44c49c43]{transform:translateY(-100%)}.dash-panel-enter-active[data-v-44c49c43],.dash-panel-leave-active[data-v-44c49c43]{transition:opacity .25s ease}.dash-panel-enter-from[data-v-44c49c43],.dash-panel-leave-to[data-v-44c49c43]{opacity:0}.step-progress-track[data-v-44c49c43]{background:#eee;height:3px}.step-progress-bar[data-v-44c49c43]{background:linear-gradient(90deg,#c0392b,#d4a855);height:100%;transition:width .4s ease}.section-nav[data-v-44c49c43]{background:#fff;border-bottom:1px solid #eee;padding:.5rem 0}.section-nav-container[data-v-44c49c43]{margin:0 auto;max-width:1200px;padding:0 1rem}.section-nav-tabs[data-v-44c49c43]{display:flex;gap:.35rem;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}.section-nav-tabs[data-v-44c49c43]::-webkit-scrollbar{display:none}.section-tab[data-v-44c49c43]{align-items:center;background:transparent;border:1px solid transparent;border-radius:20px;color:#7f8c8d;cursor:default;display:inline-flex;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:600;gap:.35rem;padding:.4rem .9rem;transition:all .2s ease;white-space:nowrap}.section-tab--active[data-v-44c49c43]{background:#fdf2f0;border-color:#e8b4ac;color:#c0392b;font-weight:700}.section-tab-hanzi[data-v-44c49c43]{font-family:Noto Sans SC,sans-serif;font-size:.85rem;font-weight:500}.section-tab--active .section-tab-hanzi[data-v-44c49c43]{font-weight:700}@media(max-width:768px){.section-nav[data-v-44c49c43]{padding:.35rem .5rem}.section-tab[data-v-44c49c43]{font-size:.68rem;padding:.35rem .6rem}}.step-inner[data-v-44c49c43]{display:flex;flex:1;flex-direction:column;margin:0 auto;max-width:1200px;padding:8rem 1.5rem 4rem;width:100%}.step-quit-bar[data-v-44c49c43]{align-items:center;display:flex;gap:.75rem;padding:.25rem 0 0}.step-quit[data-v-44c49c43]{background:none;border:none;border-radius:50%;color:#bdc3c7;cursor:pointer;flex-shrink:0;padding:.35rem;transition:color .15s}.step-quit[data-v-44c49c43]:hover{background:#c0392b0f;color:#c0392b}.step-counter[data-v-44c49c43]{color:#95a5a6;font-family:Quicksand,sans-serif;font-size:.75rem;font-weight:600;margin-left:auto}.lesson-hero[data-v-44c49c43]{align-items:flex-start;background:#fff;border-radius:14px;box-shadow:0 2px 12px #0000000f;display:flex;gap:1rem;margin-bottom:.75rem;padding:1.25rem}.lesson-hero-icon[data-v-44c49c43]{align-items:center;background:#c0392b;border-radius:50%;color:#fff;display:flex;flex-shrink:0;height:48px;justify-content:center;width:48px}.lesson-hero-body[data-v-44c49c43]{flex:1;min-width:0}.lesson-hero-top[data-v-44c49c43]{align-items:center;display:flex;gap:.5rem;margin-bottom:.35rem}.lesson-hero-number[data-v-44c49c43]{color:#aaa;font-size:.7rem}.lesson-hero-level[data-v-44c49c43],.lesson-hero-number[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.lesson-hero-level[data-v-44c49c43]{background:#c0392b;border-radius:12px;color:#fff;font-size:.65rem;padding:.2rem .6rem}.lesson-hero-title[data-v-44c49c43]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:1.05rem;font-weight:700;line-height:1.3;margin:0 0 .3rem}.lesson-hero-desc[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.82rem;font-weight:500;line-height:1.5;margin:0 0 .6rem}.lesson-hero-meta[data-v-44c49c43]{display:flex;gap:1rem}.lesson-hero-meta span[data-v-44c49c43]{align-items:center;color:#aaa;display:flex;font-family:Quicksand,sans-serif;font-size:.75rem;font-weight:600;gap:.3rem}.lesson-hero-meta svg[data-v-44c49c43]{color:#d4a855}.step-header[data-v-44c49c43]{align-items:center;display:flex;margin-bottom:.5rem}.step-type-badge[data-v-44c49c43]{background:#c0392b12;border-radius:20px;color:#c0392b;font-family:Quicksand,sans-serif;font-size:.65rem;font-weight:700;letter-spacing:.08em;margin-left:auto;padding:.22rem .65rem;text-transform:uppercase}.step-content[data-v-44c49c43]{flex:1}.step-vocab[data-v-44c49c43]{padding:1.5rem 0;text-align:center}.vocab-hanzi[data-v-44c49c43]{color:#2c3e50;font-size:4.5rem;font-weight:500;letter-spacing:.05em;line-height:1.15}.vocab-hanzi[data-v-44c49c43],.vocab-trad[data-v-44c49c43]{font-family:Noto Sans SC,sans-serif}.vocab-trad[data-v-44c49c43]{color:#aaa;font-size:1.2rem;margin-top:.25rem}.vocab-pinyin[data-v-44c49c43]{font-size:1.3rem}.vocab-pinyin[data-v-44c49c43],.vocab-pos[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:600;margin-top:.35rem}.vocab-pos[data-v-44c49c43]{color:#7f8c8d;font-size:.75rem;letter-spacing:.05em;text-transform:uppercase}.vocab-meanings[data-v-44c49c43]{margin-left:auto;margin-right:auto;margin-top:1rem;max-width:400px;text-align:left}.vocab-meaning[data-v-44c49c43]{align-items:baseline;border-bottom:1px solid #f0f0f0;color:#2c3e50;display:flex;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:500;gap:.5rem;padding:.4rem 0}.vocab-meaning-num[data-v-44c49c43]{color:#c0392b;flex-shrink:0;font-size:.7rem;font-weight:700}.step-example[data-v-44c49c43]{padding:1rem 0}.example-word[data-v-44c49c43]{margin-bottom:1rem;text-align:center}.example-word-hanzi[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:2rem;font-weight:500}.example-word-pinyin[data-v-44c49c43]{color:#c0392b;display:block;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:600;margin-top:.25rem}.example-card[data-v-44c49c43]{background:#fff;border-left:3px solid #d4a855;border-radius:12px;box-shadow:0 2px 12px #0000000f;margin-bottom:.6rem;padding:1rem}.example-zh[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:1.1rem;margin:0 0 .3rem}.example-pinyin[data-v-44c49c43]{color:#c0392b;font-size:.82rem;margin:0 0 .3rem}.example-en[data-v-44c49c43],.example-pinyin[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:500}.example-en[data-v-44c49c43]{color:#7f8c8d;font-size:.85rem;margin:0}.step-grammar[data-v-44c49c43]{padding:1rem 0}.grammar-word[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:2rem;font-weight:500;margin-bottom:1rem;text-align:center}.grammar-note[data-v-44c49c43]{background:#fff;border-left:3px solid #2980b9;border-radius:12px;box-shadow:0 2px 12px #0000000f;margin-bottom:.6rem;padding:1rem}.grammar-note-title[data-v-44c49c43]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:700;margin:0 0 .4rem}.grammar-note-body[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.85rem;font-weight:500;line-height:1.6;margin:0 0 .5rem}.grammar-note-example[data-v-44c49c43]{border-top:1px solid #f0f0f0;display:flex;flex-direction:column;gap:.15rem;margin:0;padding-top:.5rem}.grammar-example-zh[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:.9rem}.grammar-example-en[data-v-44c49c43]{color:#aaa;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:500}.grammar-patterns[data-v-44c49c43]{margin-top:.75rem}.grammar-patterns-title[data-v-44c49c43]{color:#aaa;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:700;letter-spacing:.08em;margin:0 0 .5rem;text-transform:uppercase}.grammar-pattern[data-v-44c49c43]{background:#f8f8f8;border-radius:6px;color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:.9rem;margin-bottom:.35rem;padding:.4rem .7rem}.step-culture[data-v-44c49c43]{padding:1rem 0}.culture-word[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:2rem;font-weight:500;margin-bottom:1rem;text-align:center}.culture-section[data-v-44c49c43]{background:#fff;border-left:3px solid #d35400;border-radius:12px;box-shadow:0 2px 12px #0000000f;margin-bottom:.6rem;padding:1rem}.culture-section-title[data-v-44c49c43]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:.85rem;font-weight:700;margin:0 0 .5rem}.culture-list[data-v-44c49c43]{margin:0;padding-left:1.2rem}.culture-list li[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.85rem;font-weight:500;line-height:1.6;margin-bottom:.3rem}.culture-proverb[data-v-44c49c43]{display:flex;flex-direction:column;gap:.15rem;padding:.4rem 0}.culture-proverb-zh[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:.95rem}.culture-proverb-en[data-v-44c49c43]{color:#aaa;font-size:.8rem;font-style:italic}.culture-note[data-v-44c49c43],.culture-proverb-en[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:500}.culture-note[data-v-44c49c43]{color:#7f8c8d;font-size:.85rem;line-height:1.6;margin:0}.step-writing[data-v-44c49c43]{padding:.75rem 0}.writing-header[data-v-44c49c43]{margin-bottom:.75rem;text-align:center}.writing-hanzi[data-v-44c49c43]{color:#2c3e50;display:block;font-family:Noto Sans SC,sans-serif;font-size:3rem;font-weight:500;line-height:1.2}.writing-pinyin[data-v-44c49c43]{font-size:1.1rem;font-weight:600}.writing-gloss[data-v-44c49c43],.writing-pinyin[data-v-44c49c43]{display:block;font-family:Quicksand,sans-serif;margin-top:.25rem}.writing-gloss[data-v-44c49c43]{color:#95a5a6;font-size:.85rem;font-weight:500}.writing-instruction[data-v-44c49c43]{align-items:center;background:#fef9f0;border:1px solid #f5e6cc;border-radius:8px;color:#d4a855;display:flex;gap:.5rem;margin-bottom:.75rem;padding:.65rem 1rem}.writing-instruction span[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:500}.writing-instruction strong[data-v-44c49c43]{color:#2c3e50}.step-quiz[data-v-44c49c43]{padding:1.25rem 0}.quiz-question[data-v-44c49c43]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:1.1rem;font-weight:700;line-height:1.5;margin:0 0 1.25rem;text-align:center}.quiz-choices[data-v-44c49c43]{display:flex;flex-direction:column;gap:.5rem}.quiz-choice[data-v-44c49c43]{align-items:center;background:#fff;border:2px solid #e8e8e8;border-radius:12px;color:#2c3e50;cursor:pointer;display:flex;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:600;gap:.75rem;padding:.75rem 1rem;text-align:left;transition:border-color .15s,background .15s;width:100%}.quiz-choice[data-v-44c49c43]:not(:disabled):hover{background:#c0392b08;border-color:#c0392b}.quiz-choice-letter[data-v-44c49c43]{align-items:center;background:#f0f0f0;border-radius:50%;color:#7f8c8d;display:flex;flex-shrink:0;font-size:.75rem;font-weight:700;height:28px;justify-content:center;width:28px}.quiz-choice--correct[data-v-44c49c43]{background:#27ae600f;border-color:#27ae60}.quiz-choice--correct .quiz-choice-letter[data-v-44c49c43]{background:#27ae60;color:#fff}.quiz-choice--wrong[data-v-44c49c43]{background:#e74c3c0f;border-color:#e74c3c}.quiz-choice--wrong .quiz-choice-letter[data-v-44c49c43]{background:#e74c3c;color:#fff}.quiz-explanation[data-v-44c49c43]{background:#f8f8f8;border-radius:10px;margin-top:.75rem;padding:.85rem}.quiz-result[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:700;margin:0 0 .3rem}.quiz-result--correct[data-v-44c49c43]{color:#27ae60}.quiz-result--wrong[data-v-44c49c43]{color:#e74c3c}.quiz-explain-text[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.82rem;font-weight:500;line-height:1.5;margin:0}.step-nav[data-v-44c49c43]{align-items:center;border-top:1px solid #f0f0f0;display:flex;justify-content:space-between;margin-top:auto;padding:1rem 0}.step-nav-btn[data-v-44c49c43]{align-items:center;border:none;border-radius:10px;cursor:pointer;display:inline-flex;font-family:Quicksand,sans-serif;font-size:.85rem;font-weight:700;gap:.4rem;padding:.7rem 1.5rem;transition:background .15s,transform .1s,box-shadow .15s}.step-nav-prev[data-v-44c49c43]{background:#f5f5f5;color:#7f8c8d}.step-nav-prev[data-v-44c49c43]:hover{background:#eee;transform:translate(-2px)}.step-nav-next[data-v-44c49c43]{background:#c0392b;box-shadow:0 2px 8px #c0392b40;color:#fff}.step-nav-next[data-v-44c49c43]:hover{background:#a93226;box-shadow:0 4px 16px #c0392b4d;transform:translate(2px)}.step-nav-next--disabled[data-v-44c49c43]{box-shadow:none;cursor:not-allowed;opacity:.35}.step-dialogue-split[data-v-44c49c43]{display:grid;gap:2rem;grid-template-columns:1fr 1fr;padding:.75rem 0}@media(max-width:768px){.step-dialogue-split[data-v-44c49c43]{grid-template-columns:1fr}}.dialogue-col[data-v-44c49c43]{min-width:0}.dialogue-setting[data-v-44c49c43]{color:#95a5a6;font-family:Quicksand,sans-serif;font-size:.82rem;font-style:italic;font-weight:500;line-height:1.5;margin:0 0 1.25rem;text-align:center}.dialogue-lines[data-v-44c49c43]{gap:.65rem}.dialogue-line[data-v-44c49c43],.dialogue-lines[data-v-44c49c43]{display:flex;flex-direction:column}.dialogue-line[data-v-44c49c43]{align-items:flex-start}.dialogue-line--alt[data-v-44c49c43]{align-items:flex-end}.dialogue-speaker[data-v-44c49c43]{color:#c0392b;font-family:Quicksand,sans-serif;font-size:.7rem;font-weight:700;letter-spacing:.06em;margin-bottom:.2rem;padding:0 .5rem;text-transform:uppercase}.dialogue-bubble[data-v-44c49c43]{background:#fff;border:1px solid #eee;border-radius:16px;box-shadow:0 1px 6px #0000000d;max-width:100%;padding:.75rem 1rem}.dialogue-line--alt .dialogue-bubble[data-v-44c49c43]{background:#fef9f0;border-color:#f0e4d0}.dialogue-hanzi[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:1.05rem;margin:0 0 .2rem}.dialogue-pinyin[data-v-44c49c43]{color:#c0392b;font-size:.78rem;margin:0 0 .2rem}.dialogue-english[data-v-44c49c43],.dialogue-pinyin[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:500}.dialogue-english[data-v-44c49c43]{color:#95a5a6;font-size:.8rem;margin:0}.dialogue-sidebar[data-v-44c49c43]{align-self:start;display:flex;flex-direction:column;gap:1rem;position:sticky;top:5rem}.sidebar-section[data-v-44c49c43]{background:#fff;border:1px solid #f0f0f0;border-left:3px solid #c0392b;border-radius:12px;box-shadow:0 1px 8px #0000000d;padding:.85rem 1rem}.sidebar-section-header[data-v-44c49c43]{align-items:center;color:#c0392b;display:flex;gap:.5rem;margin-bottom:.6rem}.sidebar-section-title[data-v-44c49c43]{color:#2c3e50;flex:1;font-size:.78rem;letter-spacing:.06em;margin:0;text-transform:uppercase}.sidebar-count[data-v-44c49c43],.sidebar-section-title[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-weight:700}.sidebar-count[data-v-44c49c43]{background:#c0392b;border-radius:10px;color:#fff;font-size:.65rem;line-height:1.3;padding:.1rem .45rem}.sidebar-word-list[data-v-44c49c43]{display:flex;flex-direction:column;gap:.15rem}.sidebar-word[data-v-44c49c43]{align-items:baseline;border-bottom:1px solid #f5f5f5;display:grid;gap:.5rem;grid-template-columns:auto auto 1fr;padding:.3rem 0}.sidebar-word[data-v-44c49c43]:last-child{border-bottom:none}.sidebar-word-hanzi[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:.95rem;font-weight:500}.sidebar-word-pinyin[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-size:.75rem;font-weight:600}.sidebar-word-gloss[data-v-44c49c43]{color:#95a5a6;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:500;overflow:hidden;text-align:right;text-overflow:ellipsis;white-space:nowrap}.sidebar-grammar-list[data-v-44c49c43]{display:flex;flex-direction:column;gap:.5rem}.sidebar-grammar[data-v-44c49c43]{background:#f8f8f8;border-radius:8px;display:flex;flex-direction:column;gap:.15rem;padding:.4rem .6rem}.sidebar-grammar-label[data-v-44c49c43]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:.75rem;font-weight:700}.sidebar-grammar-meaning[data-v-44c49c43]{font-size:.78rem}.sidebar-description[data-v-44c49c43],.sidebar-grammar-meaning[data-v-44c49c43]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-weight:500}.sidebar-description[data-v-44c49c43]{font-size:.82rem;line-height:1.55;margin:0 0 .6rem}.sidebar-stats[data-v-44c49c43]{display:flex;gap:.75rem}.sidebar-stat[data-v-44c49c43]{align-items:center;background:#f8f8f8;border-radius:8px;display:flex;flex:1;flex-direction:column;padding:.4rem 0}.sidebar-stat-value[data-v-44c49c43]{color:#c0392b;font-family:Quicksand,sans-serif;font-size:1.15rem;font-weight:700}.sidebar-stat-label[data-v-44c49c43]{color:#95a5a6;font-family:Quicksand,sans-serif;font-size:.65rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.step-flashcard[data-v-44c49c43]{padding:1rem 0}.flashcard-word[data-v-44c49c43]{margin-bottom:1rem;text-align:center}.flashcard-word-hanzi[data-v-44c49c43]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:2rem;font-weight:500}.flashcard-word-pinyin[data-v-44c49c43]{color:#c0392b;display:block;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:600;margin-top:.25rem}.flashcard-deck[data-v-44c49c43]{display:flex;flex-direction:column;gap:.6rem}.flashcard-card[data-v-44c49c43]{cursor:pointer;min-height:90px;perspective:600px}.flashcard-face[data-v-44c49c43]{background:#fff;border:2px solid #e8e8e8;border-radius:12px;box-shadow:0 2px 12px #0000000f;padding:1rem;transition:transform .3s}.flashcard-card--flipped .flashcard-front[data-v-44c49c43],.flashcard-card:not(.flashcard-card--flipped) .flashcard-back[data-v-44c49c43]{display:none}.flashcard-card--flipped .flashcard-face[data-v-44c49c43]{background:#fef9f0;border-color:#d4a855}.flashcard-card-type[data-v-44c49c43]{color:#95a5a6;font-family:Quicksand,sans-serif;font-size:.65rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.flashcard-card-content[data-v-44c49c43]{color:#2c3e50;font-size:1rem;font-weight:600;line-height:1.5}.flashcard-card-content[data-v-44c49c43],.flashcard-card-hint[data-v-44c49c43]{font-family:Quicksand,sans-serif;margin:.5rem 0 0}.flashcard-card-hint[data-v-44c49c43]{color:#95a5a6;font-size:.8rem;font-style:italic;font-weight:500}.flashcard-tap-hint[data-v-44c49c43]{color:#bdc3c7;display:block;font-family:Quicksand,sans-serif;font-size:.7rem;font-weight:500;margin-top:.5rem}.bottom-nav[data-v-44c49c43]{background:#fff;border-top:1px solid #e8e8e8;bottom:0;box-shadow:0 -2px 12px #0000000f;left:0;padding:.35rem 0 calc(.35rem + env(safe-area-inset-bottom,0px));position:fixed;right:0;z-index:200}.bottom-nav-inner[data-v-44c49c43]{align-items:stretch;display:flex;margin:0 auto;max-width:1200px}.bottom-nav-tab[data-v-44c49c43]{align-items:center;color:#c0392b;display:flex;flex:1;flex-direction:column;gap:.2rem;justify-content:center;padding:.4rem 0;text-decoration:none;transition:color .2s;-webkit-tap-highlight-color:transparent}.bottom-nav-tab[data-v-44c49c43]:hover{color:#a93226}.bottom-nav-icon[data-v-44c49c43]{height:22px;width:22px}.bottom-nav-label[data-v-44c49c43]{font-family:Quicksand,sans-serif;font-size:.65rem;font-weight:600;letter-spacing:.02em;max-width:100%;overflow:hidden;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap}@media(max-width:400px){.bottom-nav-label[data-v-44c49c43]{font-size:.58rem;letter-spacing:0}.bottom-nav-icon[data-v-44c49c43]{height:20px;width:20px}}.lesson-hero-xp[data-v-44c49c43]{transition:color .3s ease}.lesson-hero-xp--earning[data-v-44c49c43]{color:#d4a855;font-weight:700}.section-tab--xp-earned[data-v-44c49c43]{background:#27ae6014}.quiz-xp-badge[data-v-44c49c43]{align-items:center;background:#d4a85526;border-radius:10px;color:#d4a855;display:inline-flex;font-family:Quicksand,sans-serif;font-size:.72rem;font-weight:700;gap:.2rem;margin-left:.5rem;padding:.15rem .5rem;vertical-align:middle}.quiz-xp-badge--missed[data-v-44c49c43]{background:#c0392b14;color:#95a5a6;font-size:.68rem;font-weight:600}.lesson-summary[data-v-dd8f2e68]{margin:0 auto;max-width:560px;padding:2.5rem 1rem 6rem}.summary-header[data-v-dd8f2e68]{margin-bottom:2rem;text-align:center}.summary-trophy[data-v-dd8f2e68]{align-items:center;background:linear-gradient(135deg,#d4a855,#f0d28e);border-radius:50%;box-shadow:0 4px 20px #d4a8554d;color:#fff;display:inline-flex;height:80px;justify-content:center;margin-bottom:1rem;width:80px}.summary-title[data-v-dd8f2e68]{color:#2c3e50;font-family:Playfair Display,Georgia,serif;font-size:1.8rem;font-weight:400;margin:0 0 .3rem}.summary-perf[data-v-dd8f2e68]{font-family:Quicksand,sans-serif;font-size:1rem;font-weight:700;margin:0}.summary-stats[data-v-dd8f2e68]{display:flex;gap:.75rem;margin-bottom:1.5rem}@media(max-width:480px){.summary-stats[data-v-dd8f2e68]{flex-direction:column}}.summary-stat[data-v-dd8f2e68]{align-items:center;background:#fff;border-radius:14px;box-shadow:0 2px 12px #0000000f;display:flex;flex:1;gap:.75rem;padding:1rem 1.1rem}.summary-stat-icon[data-v-dd8f2e68]{align-items:center;border-radius:50%;color:#fff;display:flex;flex-shrink:0;height:40px;justify-content:center;width:40px}.summary-stat-info[data-v-dd8f2e68]{display:flex;flex-direction:column}.summary-stat-value[data-v-dd8f2e68]{color:#2c3e50;font-family:Quicksand,sans-serif;font-size:1.2rem;font-weight:700}.summary-stat-label[data-v-dd8f2e68]{color:#aaa;font-family:Quicksand,sans-serif;font-size:.7rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.summary-accuracy-bar[data-v-dd8f2e68]{background:#fff;border-radius:14px;box-shadow:0 2px 12px #0000000f;margin-bottom:1.5rem;padding:1.1rem 1.25rem}.accuracy-bar-label[data-v-dd8f2e68]{display:flex;justify-content:space-between;margin-bottom:.6rem}.accuracy-bar-label span[data-v-dd8f2e68]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:600}.accuracy-bar-track[data-v-dd8f2e68]{background:#f0f0f0;border-radius:4px;height:8px;overflow:hidden}.accuracy-bar-fill[data-v-dd8f2e68]{border-radius:4px;height:100%;transition:width .6s ease}.summary-words[data-v-dd8f2e68]{background:#fff;border-radius:14px;box-shadow:0 2px 12px #0000000f;margin-bottom:2rem;padding:1.25rem}.summary-words-title[data-v-dd8f2e68]{color:#aaa;font-family:Quicksand,sans-serif;font-size:.78rem;font-weight:700;letter-spacing:.1em;margin:0 0 1rem;text-transform:uppercase}.summary-word-grid[data-v-dd8f2e68]{display:grid;gap:.65rem;grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}.summary-word[data-v-dd8f2e68]{align-items:center;background:#f8f8f8;border-radius:10px;display:flex;flex-direction:column;gap:.15rem;padding:.75rem .5rem}.summary-word-hanzi[data-v-dd8f2e68]{color:#2c3e50;font-family:Noto Sans SC,sans-serif;font-size:1.35rem;font-weight:500}.summary-word-pinyin[data-v-dd8f2e68]{color:#c0392b;font-family:Quicksand,sans-serif;font-size:.75rem;font-weight:600}.summary-word-meaning[data-v-dd8f2e68]{color:#7f8c8d;font-family:Quicksand,sans-serif;font-size:.68rem;font-weight:500;text-align:center}.summary-actions[data-v-dd8f2e68]{text-align:center}.summary-finish-btn[data-v-dd8f2e68]{align-items:center;background:#c0392b;border:none;border-radius:10px;color:#fff;cursor:pointer;display:inline-flex;font-family:Quicksand,sans-serif;font-size:.95rem;font-weight:700;gap:.5rem;padding:.85rem 2.5rem;transition:background .15s,transform .15s}.summary-finish-btn[data-v-dd8f2e68]:hover{background:#a93226;transform:translateY(-1px)}.cp-progress[data-v-77081862]{background:#fafafa;border:1px solid #f0f0f0;border-radius:10px;font-family:Quicksand,sans-serif;padding:.3rem .75rem}.cp-progress-top[data-v-77081862]{align-items:center;display:flex;justify-content:space-between;margin-bottom:.25rem}.cp-progress-stats[data-v-77081862]{color:#95a5a6;font-size:.75rem;font-weight:500}.cp-progress-count[data-v-77081862]{color:#2c3e50;font-size:.85rem;font-weight:700}.cp-progress-total[data-v-77081862]{color:#95a5a6}.cp-progress-xp[data-v-77081862]{color:#d4a855;font-size:.82rem;font-weight:700}.cp-progress-xp-label[data-v-77081862]{font-size:.65rem;font-weight:600;letter-spacing:.04em}.cp-progress-bar[data-v-77081862]{background:#e8e8e8;border-radius:4px;height:5px;overflow:hidden}.cp-progress-fill[data-v-77081862]{border-radius:4px;height:100%;transition:width .4s ease,background-color .4s ease}.cp-progress-footer[data-v-77081862]{display:flex;justify-content:flex-end;margin-top:.35rem}.cp-progress-level[data-v-77081862]{background:#f0f0f0;border-radius:8px;color:#7f8c8d;font-size:.62rem;font-weight:700;letter-spacing:.08em;padding:.15rem .55rem;text-transform:uppercase}.cp-progress-level--beginner[data-v-77081862]{background:#e8f4fd;color:#2980b9}.cp-progress-level--elementary[data-v-77081862]{background:#eafaf1;color:#27ae60}.cp-progress-level--intermediate[data-v-77081862]{background:#fef9e7;color:#d4a855}.cp-progress-level--advanced[data-v-77081862]{background:#fdf2f0;color:#c0392b}.cp-progress-level--proficient[data-v-77081862]{background:#f3eafa;color:#8e44ad}.cp-progress-level--master[data-v-77081862]{background:#fdf2f0;color:#c0392b}