*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}#root{width:100%;max-width:100%}*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0f1117;--bg-secondary:#1a1d27;--bg-card:#1e2130;--bg-input:#252836;--text-primary:#e8eaed;--text-secondary:#9aa0a6;--text-muted:#6b7280;--accent:#3b82f6;--accent-hover:#2563eb;--border:#2d3148;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px #0000004d}body{background:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6}.app{max-width:960px;margin:0 auto;padding:20px}.app-header{text-align:center;padding:40px 0 30px}.logo{justify-content:center;align-items:center;gap:12px;margin-bottom:8px;display:flex}.logo-icon{color:#fff;letter-spacing:2px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:10px;padding:6px 14px;font-size:18px;font-weight:800}.logo h1{background:linear-gradient(135deg,#e8eaed,#9ca3af);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:28px;font-weight:700}.subtitle{color:var(--text-secondary);font-size:14px}.input-section{background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:16px;padding:20px}.url-input-wrapper{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.url-input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:280px;color:var(--text-primary);outline:none;flex:1;padding:14px 18px;font-size:15px;transition:border-color .2s}.url-input:focus{border-color:var(--accent)}.url-input::placeholder{color:var(--text-muted);font-size:13px}.input-actions{align-items:center;gap:8px;display:flex}.detected-badge{color:#fff;white-space:nowrap;border-radius:20px;padding:6px 14px;font-size:13px;font-weight:600}.parser-trigger{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);cursor:pointer;white-space:nowrap;padding:8px 16px;font-size:13px;transition:all .2s}.parser-trigger:hover{border-color:var(--accent);color:#60a5fa}.parser-panel{background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);max-height:360px;margin-top:16px;padding:16px;overflow-y:auto}.parser-group{margin-bottom:14px}.parser-group:last-child{margin-bottom:0}.parser-group-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;font-size:12px}.parser-list{flex-wrap:wrap;gap:6px;display:flex}.parser-item{background:var(--bg-input);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;border-radius:20px;padding:6px 14px;font-size:12px;transition:all .2s}.parser-item:hover{border-color:var(--accent);color:var(--text-primary);background:#3b82f61a}.parser-item.active{border-color:var(--accent);color:#60a5fa;background:#3b82f633}.parser-item.popup{border-style:dashed}.play-btn{border-radius:var(--radius-sm);color:#fff;cursor:pointer;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border:none;width:100%;margin-top:14px;padding:14px;font-size:16px;font-weight:600;transition:opacity .2s,transform .1s}.play-btn:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}.play-btn:disabled{opacity:.4;cursor:not-allowed}.tabs{border-bottom:1px solid var(--border);gap:0;margin-bottom:16px;display:flex}.tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:12px 24px;font-size:14px;transition:all .2s}.tab:hover{color:var(--text-primary)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.player-section{border-radius:var(--radius);border:1px solid var(--border);background:#000;margin-bottom:24px;overflow:hidden}.player-wrapper{width:100%}.player-bar{background:var(--bg-secondary);color:var(--text-secondary);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 16px;font-size:13px;display:flex}.platform-tag{color:#fff;border-radius:10px;padding:2px 10px;font-size:11px;font-weight:600}.close-btn{color:#fca5a5;cursor:pointer;background:#ef444426;border:1px solid #ef44444d;border-radius:6px;margin-left:auto;padding:4px 12px;font-size:12px;transition:all .2s}.close-btn:hover{background:#ef444440}.video-iframe{border:none;width:100%;height:520px;display:block}.player-empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:80px 20px;display:flex}.empty-icon{letter-spacing:4px;color:var(--text-muted);opacity:.3;margin-bottom:16px;font-size:36px;font-weight:900}.player-empty p{color:var(--text-secondary);font-size:14px}.empty-detected{color:var(--text-primary);border:1px dashed;border-radius:20px;margin-top:12px;padding:8px 16px;font-size:13px}.platforms-section{padding:0}.platforms-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px;display:grid}.platform-card{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;align-items:center;gap:12px;padding:20px 16px;transition:all .25s;display:flex}.platform-card:hover{box-shadow:var(--shadow);border-color:var(--accent);transform:translateY(-2px)}.platform-card.selected,.platform-card.detected{transform:translateY(-2px);box-shadow:0 4px 20px #0006}.platform-icon{color:#fff;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:18px;font-weight:800;display:flex}.platform-info{min-width:0}.platform-name{color:var(--text-primary);margin-bottom:2px;font-size:15px;font-weight:600}.platform-domain{color:var(--text-muted);font-size:11px}.features-section{background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:24px;padding:24px}.features-section h3{color:var(--text-primary);margin-bottom:16px;font-size:16px;font-weight:600}.features-list{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.feature{align-items:flex-start;gap:12px;display:flex}.feature-num{color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:700;display:flex}.feature strong{color:var(--text-primary);margin-bottom:2px;font-size:14px;display:block}.feature p{color:var(--text-secondary);font-size:12px;line-height:1.5}.app-footer{text-align:center;border-top:1px solid var(--border);padding:20px 0 40px}.app-footer p{color:var(--text-muted);font-size:12px;line-height:1.8}@media (width<=640px){.app{padding:12px}.app-header{padding:24px 0 16px}.logo h1{font-size:22px}.url-input-wrapper{flex-direction:column}.url-input{min-width:100%}.input-actions{justify-content:space-between;width:100%}.platforms-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.video-iframe{height:280px}.features-list{grid-template-columns:1fr}}