:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#18181f;--bg-card-hover:#1f1f28;--bg-card-selected:#1a2a24;--border-color:#2a2a35;--border-selected:#00d084;--text-primary:#f5f5f7;--text-secondary:#8e8e93;--text-muted:#636366;--accent-green:#00d084;--accent-green-dim:rgba(0,208,132,.15);--accent-red:#ff3b5c;--accent-red-dim:rgba(255,59,92,.15);--accent-blue:#007aff;--accent-orange:#ff9500}*{margin:0;padding:0;box-sizing:border-box}body{font-family:DM Sans,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.5}.app{height:100vh;display:flex;flex-direction:column;overflow:hidden}.header{justify-content:space-between;padding:20px 32px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary);flex-shrink:0}.header,.logo{display:flex;align-items:center}.logo{gap:12px}.logo-icon{width:46px;height:46px;border-radius:50%;object-fit:cover;-webkit-clip-path:circle(50%);clip-path:circle(50%)}.logo-text{font-size:22px;font-weight:700;letter-spacing:-.5px}.logo-text span{color:var(--accent-orange)}.header-meta{display:flex;align-items:center;gap:10px;color:var(--text-secondary);font-size:13px}.live-dot{width:8px;height:8px;background:var(--accent-green);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.main-layout{display:flex;flex:1 1;overflow:hidden}.commodities-list{width:320px;min-width:280px;border-right:1px solid var(--border-color);overflow-y:auto;background:var(--bg-secondary);flex-shrink:0}.commodity-card{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;transition:all .15s ease;border-bottom:1px solid var(--border-color);border-left:3px solid transparent}.commodity-card:hover{background:var(--bg-card-hover)}.commodity-card.selected{background:var(--bg-card-selected);border-left-color:var(--accent-green)}.card-left{display:flex;flex-direction:column;gap:6px}.commodity-name{font-size:15px;font-weight:600;color:var(--text-primary)}.commodity-meta{display:flex;align-items:center;gap:10px}.commodity-code{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-muted)}.commodity-type{font-size:11px;padding:3px 8px;border-radius:12px;background:var(--bg-card);color:var(--text-secondary);font-weight:500}.card-right{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.price-value{font-family:JetBrains Mono,monospace;font-size:20px;font-weight:600;letter-spacing:-.5px}.price-change{display:flex;align-items:center;gap:3px;font-size:12px;font-weight:500;padding:3px 8px;border-radius:6px}.price-change.positive{color:var(--accent-green);background:var(--accent-green-dim)}.price-change.negative{color:var(--accent-red);background:var(--accent-red-dim)}.price-change.neutral{color:var(--text-muted);background:transparent;font-size:12px}.loading-card{opacity:.7}.card-spinner{width:24px;height:24px;border:2px solid var(--border-color);border-top-color:var(--accent-orange);border-radius:50%;animation:spin .8s linear infinite}.skeleton-block{position:relative;overflow:hidden;background:#e8e8ea;border-radius:8px}.skeleton-block:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.75),transparent);animation:shimmer 1.4s infinite}@keyframes shimmer{to{transform:translateX(100%)}}.commodity-card-skeleton{cursor:default}.commodity-card-skeleton:hover{background:transparent}.skeleton-title{width:170px;height:16px}.skeleton-code{width:95px;height:12px}.skeleton-type{width:72px;height:22px;border-radius:12px}.skeleton-price{width:90px;height:24px}.skeleton-change{width:74px;height:20px;border-radius:6px}.skeleton-current-price{width:140px;height:40px}.chart-container-skeleton{display:flex;align-items:center}.skeleton-chart{width:100%;height:100%;border-radius:12px}.skeleton-stat-label{width:70px;height:11px}.skeleton-stat-value{width:85px;height:20px}.chart-panel{flex:1 1;display:flex;flex-direction:column;padding:32px;overflow-y:auto;background:#fff}.chart-panel.empty{align-items:center;justify-content:center}.chart-panel .chart-current-price,.chart-panel .chart-title{color:#1a1a1a}.chart-panel .chart-code{color:#666}.chart-panel .price-change.neutral{color:#888}.empty-state{text-align:center;color:#888}.empty-icon{font-size:64px;margin-bottom:20px;opacity:.5}.empty-title{font-size:20px;font-weight:600;color:#333;margin-bottom:8px}.empty-subtitle{font-size:14px;color:#888}.chart-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:32px}.chart-title-section{display:flex;flex-direction:column;gap:4px}.chart-title{font-size:28px;font-weight:700;letter-spacing:-.5px}.chart-code{font-family:JetBrains Mono,monospace;font-size:13px;color:var(--text-muted)}.time-range-buttons{display:flex;gap:8px;margin-top:12px}.range-btn{padding:8px 16px;border:1px solid #e0e0e0;background:#f5f5f7;color:#666;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.range-btn:hover{background:#e8e8ea;color:#333}.range-btn.active{background:#ff9500;border-color:#ff9500;color:#fff}.chart-price-section{display:flex;flex-direction:column;align-items:flex-end;gap:6px}.chart-current-price{font-family:JetBrains Mono,monospace;font-size:36px;font-weight:700;letter-spacing:-1px}.chart-container{height:500px;background:#fff;padding:24px}.chart-container,.chart-loading{margin-bottom:32px;border-radius:16px;border:1px solid #e0e0e0}.chart-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;gap:12px;color:#666;background:#f5f5f7}.chart-loading .empty-icon{font-size:48px;opacity:.5}.chart-loading-hint{font-size:13px;color:#888}.chart-stats{display:flex;gap:24px;flex-wrap:wrap;padding:24px;background:#f5f5f7;border-radius:16px;border:1px solid #e0e0e0}.chart-stat{display:flex;flex-direction:column;gap:4px;min-width:100px}.chart-stat-label{font-size:11px;color:#888;text-transform:uppercase;letter-spacing:.5px}.chart-stat-value{font-family:JetBrains Mono,monospace;font-size:18px;font-weight:600;color:#1a1a1a}.chart-stat-value.time{font-size:14px;font-weight:400}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1 1;gap:16px}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--accent-orange);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.loading-text{color:var(--text-secondary);font-size:14px}.error{background:var(--accent-red-dim);border:1px solid var(--accent-red);border-radius:12px;padding:20px 24px;color:var(--accent-red);text-align:center;margin:32px}.chart-panel::-webkit-scrollbar,.commodities-list::-webkit-scrollbar{width:8px}.chart-panel::-webkit-scrollbar-track,.commodities-list::-webkit-scrollbar-track{background:transparent}.chart-panel::-webkit-scrollbar-thumb,.commodities-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.chart-panel::-webkit-scrollbar-thumb:hover,.commodities-list::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (max-width:900px){.main-layout{flex-direction:column}.commodities-list{width:100%;min-width:unset;max-height:300px;border-right:none;border-bottom:1px solid var(--border-color)}.chart-panel{padding:24px}.chart-container{height:280px}.chart-current-price{font-size:28px}}@media (max-width:640px){.header{flex-direction:column;gap:12px;align-items:flex-start}.commodity-card,.header{padding:16px 20px}.price-value{font-size:18px}.chart-title{font-size:22px}.chart-stats{gap:16px}.chart-stat{min-width:80px}.chart-stat-value{font-size:16px}}