:root{--primary: #6366f1;--primary-hover: #4f46e5;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--bg: #f8fafc;--card: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.app{max-width:600px;margin:0 auto;padding:20px;min-height:100vh}@media(max-width:768px){.app{padding:12px}}.header{text-align:center;padding:24px 0}.header h1{font-size:26px;background:linear-gradient(135deg,var(--primary),#8b5cf6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header p{font-size:14px;color:var(--text-muted);margin-top:8px}.card{background:var(--card);border-radius:16px;padding:24px;margin-bottom:20px;box-shadow:0 2px 8px #0000000d}.config-toggle{display:flex;justify-content:space-between;align-items:center;padding:12px;background:var(--bg);border-radius:8px;cursor:pointer;margin-bottom:16px;transition:all .2s}.config-toggle:hover{background:var(--border)}.config-panel{padding:16px;background:var(--bg);border-radius:8px;margin-bottom:16px}.config-panel label{display:block;font-size:13px;font-weight:500;margin-bottom:8px;color:var(--text)}.config-panel input{width:100%;padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px;margin-bottom:8px;background:var(--card);color:var(--text)}.config-panel .hint{font-size:12px;color:var(--text-muted);margin-bottom:12px}.btn{padding:16px 28px;border:none;border-radius:14px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:#f87171;color:#fff}.btn-danger:hover{background:#ef4444}.btn-secondary{background:#e2e8f0;color:var(--text)}.btn-sm{padding:8px 16px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.connect-row{display:flex;gap:12px;align-items:center}.connect-row input{flex:1;padding:12px 16px;border:2px solid var(--border);border-radius:10px;font-size:15px;background:var(--card);color:var(--text);transition:all .2s}.connect-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.connect-row input:disabled{background:var(--bg);cursor:not-allowed;opacity:.7}.btn-small{padding:6px 12px;font-size:12px;border:1px solid var(--border);border-radius:8px;background:transparent;cursor:pointer}.btn-icon{width:28px;height:28px;border:none;border-radius:8px;background:#fee2e2;color:var(--danger);cursor:pointer;font-size:12px}.status-bar{display:flex;align-items:center;justify-content:center;gap:12px;padding:16px;margin-top:20px;background:#f1f5f9;border-radius:12px}.status-dot{width:12px;height:12px;border-radius:50%;background:#cbd5e1}.status-dot.connecting{background:var(--warning);animation:pulse 1.5s infinite}.status-dot.connected{background:var(--success)}.status-dot.error{background:var(--danger)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.status-text{font-size:15px;font-weight:500}.network-info{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;padding:12px;margin-top:12px;background:#f1f5f9;border-radius:10px}.badge{padding:4px 12px;border-radius:6px;font-size:12px;font-weight:500}.badge-success{background:#d1fae5;color:#059669}.badge-warning{background:#fef3c7;color:#d97706}.badge-info,.badge-primary{background:#e0e7ff;color:var(--primary)}.badge-secondary{background:#f1f5f9;color:var(--text-muted)}.drop-zone{border:2px dashed var(--border);border-radius:16px;padding:48px 24px;text-align:center;cursor:pointer;transition:all .2s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:#6366f108}.drop-zone.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.drop-icon{font-size:48px;margin-bottom:12px}.drop-text{font-size:16px;font-weight:500}.drop-hint{font-size:13px;color:var(--text-muted);margin-top:8px}.drop-buttons{display:flex;gap:12px;justify-content:center;margin-top:20px}.btn-choice{padding:12px 24px;border:2px solid var(--primary);border-radius:10px;font-size:14px;font-weight:500;color:var(--primary);background:#fff;cursor:pointer;transition:all .2s}.btn-choice:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}.file-list{max-height:320px;overflow-y:auto;margin-top:20px}.file-item{display:flex;align-items:center;gap:14px;padding:14px;background:#f8fafc;border-radius:12px;margin-bottom:10px}.file-icon{width:44px;height:44px;background:linear-gradient(135deg,var(--primary),#8b5cf6);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.file-info{flex:1;min-width:0}.file-name{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:12px;color:var(--text-muted);margin-top:4px}.file-progress{width:100%;height:6px;background:var(--border);border-radius:3px;margin-top:8px;overflow:hidden}.file-progress-bar{height:100%;background:var(--primary);border-radius:3px;transition:width .2s ease-out}.file-progress-bar.transferring{background:linear-gradient(90deg,var(--primary),#8b5cf6);animation:progress-shine 1.5s infinite}.file-progress-bar.complete{background:var(--success)}@keyframes progress-shine{0%{opacity:1}50%{opacity:.8}to{opacity:1}}.speed-tag{color:var(--success);font-weight:500}.progress-text{color:var(--primary);font-weight:600}.file-status{font-size:11px;padding:4px 10px;border-radius:6px;font-weight:500;flex-shrink:0}.status-pending{background:#fef3c7;color:#d97706}.status-hashing,.status-transferring{background:#e0e7ff;color:var(--primary)}.status-verifying{background:#fef3c7;color:#d97706}.status-completed{background:#d1fae5;color:#059669}.status-error{background:#fee2e2;color:var(--danger)}.actions{display:flex;gap:12px;margin-top:20px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.stat{text-align:center;padding:14px 8px;background:#f8fafc;border-radius:10px}.stat-value{font-size:18px;font-weight:700;color:var(--primary)}.stat-label{font-size:11px;color:var(--text-muted);margin-top:4px}.log-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.log-header h3{font-size:14px}.log-box{background:#1e293b;border-radius:10px;padding:14px;max-height:160px;overflow-y:auto;font-family:Monaco,Consolas,monospace;font-size:12px}.log-entry{color:#94a3b8;padding:3px 0;word-break:break-all}.log-entry.info{color:#4ade80}.log-entry.warn{color:#fbbf24}.log-entry.error{color:#f87171}.log-time{color:#64748b}.log-empty{color:#64748b;text-align:center;padding:20px}.transfer-status{text-align:center;padding:40px 20px;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-radius:12px;margin-bottom:20px}.transfer-icon{font-size:48px;margin-bottom:12px;animation:pulse 2s ease-in-out infinite}.transfer-text{font-size:16px;font-weight:500;color:var(--primary)}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}@media(max-width:768px){.header h1{font-size:22px}.network-info{gap:6px}.badge{font-size:11px;padding:3px 8px}.card{padding:18px}}@media(max-width:480px){.app{padding:8px}.header{padding:16px 0}.header h1{font-size:20px}.header p{font-size:12px}.card{padding:16px;margin-bottom:12px}.stats{grid-template-columns:repeat(2,1fr);gap:8px}.stat{padding:12px 6px}.stat-value{font-size:16px}.stat-label{font-size:10px}.connect-row{flex-direction:column}.connect-row input{font-size:16px;padding:14px}.btn{width:100%;padding:14px 20px}.actions{flex-direction:column}.network-info{gap:4px}.badge{font-size:10px;padding:3px 8px}.file-item{gap:10px;padding:12px}.file-icon{width:36px;height:36px;font-size:18px}.file-name{font-size:13px}.file-meta{font-size:11px}.drop-zone{padding:32px 16px}.drop-icon{font-size:36px}.drop-text{font-size:14px}.drop-hint{font-size:12px}.log-box{max-height:120px;font-size:11px}}@media(max-width:360px){.stats{grid-template-columns:1fr}.network-info{justify-content:flex-start}}@media(prefers-color-scheme:dark){:root{--bg: #0f172a;--card: #1e293b;--text: #f1f5f9;--text-muted: #94a3b8;--border: #334155}.config-panel,.status-bar,.network-info,.file-item,.stat{background:#0f172a}.config-panel input,.connect-row input{background:#0f172a;color:var(--text)}}