.page-hero { background: linear-gradient(160deg, #1A1A2E 0%, #0A2A2A 40%, #1A1A2E 70%, #0F1A30 100%); }
.page-hero::before { background: radial-gradient(ellipse 60% 50% at 30% 60%, rgba(42,157,143,0.12), transparent 70%), radial-gradient(ellipse 40% 60% at 70% 30%, rgba(82,183,136,0.06), transparent 70%); }
.page-hero h1 { text-shadow: 0 2px 20px rgba(42,157,143,0.3); }
.tone-viz { background: #1A1A2E; border-radius: 12px; padding: 32px; margin: 28px 0; }
.tone-viz h3 { color: #fff; text-align: center; margin-bottom: 20px; }
.tone-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.tone-card { background: rgba(255,255,255,0.05); border-radius: 10px; padding: 16px; border: 1px solid rgba(255,255,255,0.08); text-align: center; transition: all 0.3s; }
.tone-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.tone-num { font-size: 2rem; font-weight: 800; margin-bottom: 2px; }
.tone-name { font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-bottom: 4px; }
.tone-pitch { font-size: 0.8rem; color: #F0D078; }
.tone-example { font-size: 1.1rem; color: #fff; margin-top: 6px; }
.tone-card:nth-child(1) .tone-num { color: #C41E3A; }
.tone-card:nth-child(2) .tone-num { color: #D4A843; }
.tone-card:nth-child(3) .tone-num { color: #2E86AB; }
.tone-card:nth-child(4) .tone-num { color: #E76F51; }
.tone-card:nth-child(5) .tone-num { color: #2A9D8F; }
.tone-card:nth-child(6) .tone-num { color: #6C5CE7; }
.learn-tabs { display: flex; gap: 4px; margin-bottom: 20px; flex-wrap: wrap; }
.learn-tab { padding: 8px 20px; border-radius: 20px; border: 1px solid #E8E0D5; background: #fff; cursor: pointer; font-size: 0.9rem; transition: all 0.3s; font-family: inherit; }
.learn-tab.active, .learn-tab:hover { background: #C41E3A; color: #fff; border-color: #C41E3A; }
.phrase-table { width: 100%; border-collapse: collapse; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,0.06); margin: 20px 0; }
.phrase-table th { background: #C41E3A; color: #fff; padding: 12px 14px; }
.phrase-table td { padding: 12px 14px; border-bottom: 1px solid #E8E0D5; background: #fff; }
.phrase-table tr:hover td { background: rgba(196,30,58,0.02); }
.phrase-table .ph-canto { font-weight: 600; color: #C41E3A; }
.ph-jyutping { color: #999; font-size: 0.85rem; }
.resource-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 20px 0; }
.resource-card { background: #fff; border-radius: 10px; padding: 20px; box-shadow: 0 2px 12px rgba(0,0,0,0.05); border: 1px solid #E8E0D5; }
.resource-card h4 { font-size: 1rem; margin-bottom: 8px; }
.resource-card ul { margin: 0; padding-left: 18px; }
.resource-card li { font-size: 0.88rem; color: #666; margin-bottom: 6px; }
@media (max-width: 768px) { .resource-grid { grid-template-columns: 1fr; } }