.page-header[data-astro-cid-fbsxixki]{background:var(--gradient-hero);color:#fff;padding:var(--space-2xl) var(--space-md);text-align:center}.breadcrumb[data-astro-cid-fbsxixki]{font-size:.875rem;margin-bottom:var(--space-md);opacity:.8}.breadcrumb[data-astro-cid-fbsxixki] a[data-astro-cid-fbsxixki]{color:#fff}.breadcrumb[data-astro-cid-fbsxixki] span[data-astro-cid-fbsxixki]{margin:0 var(--space-xs)}.page-header[data-astro-cid-fbsxixki] h1[data-astro-cid-fbsxixki]{font-size:2rem;font-weight:700;margin-bottom:var(--space-sm)}.page-header[data-astro-cid-fbsxixki] p[data-astro-cid-fbsxixki]{opacity:.9;font-size:1rem}.section[data-astro-cid-fbsxixki]{padding:var(--space-2xl) var(--space-md);background:var(--color-bg)}.container[data-astro-cid-fbsxixki]{max-width:1200px;margin:0 auto}.level-selector[data-astro-cid-fbsxixki]{margin-bottom:var(--space-2xl)}.level-selector[data-astro-cid-fbsxixki] h2[data-astro-cid-fbsxixki]{font-size:1.25rem;margin-bottom:var(--space-lg);color:var(--color-text)}.level-cards[data-astro-cid-fbsxixki]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md)}.level-card[data-astro-cid-fbsxixki]{background:var(--color-bg-elevated);border:2px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:left;cursor:pointer;transition:all .2s;position:relative;overflow:hidden}.level-card[data-astro-cid-fbsxixki]:hover{border-color:var(--level-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.level-card[data-astro-cid-fbsxixki].active{border-color:var(--level-color);box-shadow:0 0 0 3px var(--level-color, --color-accent-glow)}.level-badge[data-astro-cid-fbsxixki]{display:inline-block;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-md);color:#fff;font-weight:600;font-size:.875rem;margin-bottom:var(--space-sm)}.level-info[data-astro-cid-fbsxixki]{margin-bottom:var(--space-sm)}.word-count[data-astro-cid-fbsxixki]{font-size:1.25rem;font-weight:700;color:var(--color-text);display:block}.level-desc[data-astro-cid-fbsxixki]{font-size:.8125rem;color:var(--color-text-muted);margin-top:var(--space-xs)}.progress-bar[data-astro-cid-fbsxixki]{height:6px;background:var(--color-bg-alt);border-radius:var(--radius-full);overflow:hidden}.progress-fill[data-astro-cid-fbsxixki]{height:100%;background:var(--level-color, var(--color-accent));border-radius:var(--radius-full);transition:width .3s}.study-tools[data-astro-cid-fbsxixki]{margin-bottom:var(--space-2xl)}.study-tools[data-astro-cid-fbsxixki] h2[data-astro-cid-fbsxixki]{font-size:1.25rem;margin-bottom:var(--space-lg);color:var(--color-text)}.tools-grid[data-astro-cid-fbsxixki]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md)}.tool-card[data-astro-cid-fbsxixki]{background:var(--color-bg-elevated);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center;text-decoration:none;color:var(--color-text);transition:all .2s}.tool-card[data-astro-cid-fbsxixki]:hover{border-color:var(--color-accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}.tool-icon[data-astro-cid-fbsxixki]{font-size:2.5rem;margin-bottom:var(--space-sm)}.tool-card[data-astro-cid-fbsxixki] h3[data-astro-cid-fbsxixki]{font-size:1rem;margin-bottom:var(--space-xs)}.tool-card[data-astro-cid-fbsxixki] p[data-astro-cid-fbsxixki]{font-size:.8125rem;color:var(--color-text-muted)}.vocab-browser[data-astro-cid-fbsxixki]{background:var(--color-bg-elevated);border-radius:var(--radius-xl);padding:var(--space-xl);margin-bottom:var(--space-2xl);border:1px solid var(--color-border-light)}.browser-header[data-astro-cid-fbsxixki]{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:var(--space-md);margin-bottom:var(--space-xl)}.browser-header[data-astro-cid-fbsxixki] h2[data-astro-cid-fbsxixki]{font-size:1.25rem}.browser-controls[data-astro-cid-fbsxixki]{display:flex;flex-wrap:wrap;gap:var(--space-sm)}.search-box[data-astro-cid-fbsxixki]{position:relative}.search-box[data-astro-cid-fbsxixki] input[data-astro-cid-fbsxixki]{padding:var(--space-sm) var(--space-md);padding-right:40px;border:1px solid var(--color-border);border-radius:var(--radius-md);width:200px}.search-btn[data-astro-cid-fbsxixki]{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer}.filter-select[data-astro-cid-fbsxixki]{padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg)}.flashcard-container[data-astro-cid-fbsxixki]{max-width:500px;margin:0 auto var(--space-xl)}.flashcard[data-astro-cid-fbsxixki]{width:100%;height:300px;perspective:1000px;cursor:pointer}.flashcard-inner[data-astro-cid-fbsxixki]{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .6s}.flashcard[data-astro-cid-fbsxixki].flipped .flashcard-inner[data-astro-cid-fbsxixki]{transform:rotateY(180deg)}.flashcard-front[data-astro-cid-fbsxixki],.flashcard-back[data-astro-cid-fbsxixki]{position:absolute;width:100%;height:100%;backface-visibility:hidden;background:var(--gradient-card);border-radius:var(--radius-xl);border:1px solid var(--color-border-light);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-xl);box-shadow:var(--shadow-md)}.flashcard-back[data-astro-cid-fbsxixki]{transform:rotateY(180deg)}.flashcard-level[data-astro-cid-fbsxixki]{position:absolute;top:var(--space-md);right:var(--space-md);padding:var(--space-xs) var(--space-sm);background:var(--color-accent);color:#fff;border-radius:var(--radius-md);font-size:.75rem;font-weight:600}.flashcard-char[data-astro-cid-fbsxixki]{font-size:4rem;font-family:var(--font-chinese);color:var(--color-text)}.hint[data-astro-cid-fbsxixki]{position:absolute;bottom:var(--space-md);font-size:.75rem;color:var(--color-text-muted)}.flashcard-pinyin[data-astro-cid-fbsxixki]{font-size:1.5rem;color:var(--color-accent);margin-bottom:var(--space-sm)}.flashcard-english[data-astro-cid-fbsxixki]{font-size:1.25rem;color:var(--color-text);margin-bottom:var(--space-lg)}.flashcard-actions[data-astro-cid-fbsxixki]{display:flex;gap:var(--space-md)}.action-btn[data-astro-cid-fbsxixki]{width:44px;height:44px;border-radius:50%;border:1px solid var(--color-border);background:var(--color-bg);cursor:pointer;font-size:1.25rem;transition:all .2s}.action-btn[data-astro-cid-fbsxixki]:hover{background:var(--color-accent);border-color:var(--color-accent)}.flashcard-controls[data-astro-cid-fbsxixki]{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-lg)}.control-btn[data-astro-cid-fbsxixki]{padding:var(--space-sm) var(--space-lg);background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;font-size:.875rem;transition:all .2s}.control-btn[data-astro-cid-fbsxixki]:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.card-counter[data-astro-cid-fbsxixki]{font-size:.875rem;color:var(--color-text-muted)}.vocab-list[data-astro-cid-fbsxixki]{display:none;overflow-x:auto}.vocab-table[data-astro-cid-fbsxixki]{width:100%;border-collapse:collapse}.vocab-table[data-astro-cid-fbsxixki] th[data-astro-cid-fbsxixki],.vocab-table[data-astro-cid-fbsxixki] td[data-astro-cid-fbsxixki]{padding:var(--space-md);text-align:left;border-bottom:1px solid var(--color-border-light)}.vocab-table[data-astro-cid-fbsxixki] th[data-astro-cid-fbsxixki]{background:var(--color-bg-alt);font-weight:600;font-size:.8125rem;color:var(--color-text-secondary)}.chinese-cell[data-astro-cid-fbsxixki]{display:flex;align-items:center;gap:var(--space-sm)}.chinese-char[data-astro-cid-fbsxixki]{font-size:1.25rem;font-family:var(--font-chinese)}.audio-btn-sm[data-astro-cid-fbsxixki]{background:none;border:none;cursor:pointer;font-size:.875rem;opacity:.6}.audio-btn-sm[data-astro-cid-fbsxixki]:hover{opacity:1}.level-tag[data-astro-cid-fbsxixki]{padding:2px 8px;border-radius:var(--radius-sm);font-size:.6875rem;color:#fff;font-weight:600}.table-action-btn[data-astro-cid-fbsxixki]{background:none;border:none;cursor:pointer;font-size:1rem;padding:var(--space-xs);opacity:.6;transition:opacity .2s}.table-action-btn[data-astro-cid-fbsxixki]:hover{opacity:1}.view-toggle[data-astro-cid-fbsxixki]{display:flex;justify-content:center;gap:var(--space-sm);margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid var(--color-border-light)}.toggle-btn[data-astro-cid-fbsxixki]{padding:var(--space-sm) var(--space-lg);background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;font-size:.875rem;transition:all .2s}.toggle-btn[data-astro-cid-fbsxixki].active{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.study-stats[data-astro-cid-fbsxixki]{margin-bottom:var(--space-2xl)}.study-stats[data-astro-cid-fbsxixki] h2[data-astro-cid-fbsxixki]{font-size:1.25rem;margin-bottom:var(--space-lg);color:var(--color-text)}.stats-grid[data-astro-cid-fbsxixki]{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-md)}.stat-box[data-astro-cid-fbsxixki]{background:var(--color-bg-elevated);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center}.stat-number[data-astro-cid-fbsxixki]{display:block;font-size:2rem;font-weight:700;color:var(--color-accent)}.stat-label[data-astro-cid-fbsxixki]{font-size:.8125rem;color:var(--color-text-muted)}.daily-goal[data-astro-cid-fbsxixki] h2[data-astro-cid-fbsxixki]{font-size:1.25rem;margin-bottom:var(--space-lg);color:var(--color-text)}.goal-card[data-astro-cid-fbsxixki]{background:var(--color-bg-elevated);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);padding:var(--space-xl);display:flex;align-items:center;gap:var(--space-xl)}.goal-progress[data-astro-cid-fbsxixki]{position:relative;width:120px;height:120px;flex-shrink:0}.progress-ring[data-astro-cid-fbsxixki]{width:100%;height:100%;transform:rotate(-90deg)}.progress-ring-bg[data-astro-cid-fbsxixki]{fill:none;stroke:var(--color-bg-alt);stroke-width:8}.progress-ring-fill[data-astro-cid-fbsxixki]{fill:none;stroke:var(--color-accent);stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset .5s}.goal-text[data-astro-cid-fbsxixki]{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}.goal-current[data-astro-cid-fbsxixki]{font-size:1.5rem;font-weight:700;color:var(--color-text)}.goal-target[data-astro-cid-fbsxixki]{font-size:.75rem;color:var(--color-text-muted)}.goal-info[data-astro-cid-fbsxixki] h3[data-astro-cid-fbsxixki]{font-size:1.125rem;margin-bottom:var(--space-sm)}.goal-info[data-astro-cid-fbsxixki] p[data-astro-cid-fbsxixki]{color:var(--color-text-muted);margin-bottom:var(--space-md)}@media (max-width: 768px){.goal-card[data-astro-cid-fbsxixki]{flex-direction:column;text-align:center}.browser-header[data-astro-cid-fbsxixki]{flex-direction:column;align-items:stretch}.browser-controls[data-astro-cid-fbsxixki]{flex-direction:column}.search-box[data-astro-cid-fbsxixki] input[data-astro-cid-fbsxixki]{width:100%}}