:root{--primary:#1e40af;--primary-light:#3b82f6;--primary-dark:#1e3a8a;--primary-gradient:linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);--accent:#059669;--accent-light:#10b981;--bg:#f0f4f8;--card-bg:#fff;--text:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--border:#e2e8f0;--success:#059669;--warning:#d97706;--error:#dc2626;--radius:12px;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001f}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans SC,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{background:var(--primary-gradient);color:#fff;z-index:100;justify-content:space-between;align-items:center;gap:12px;padding:12px 24px;display:flex;position:sticky;top:0;box-shadow:0 2px 12px #1e40af40}.header-left a{color:#93c5fd;white-space:nowrap;font-size:13px;text-decoration:none;transition:color .2s}.header-left a:hover{color:#bfdbfe}.header-title{flex-shrink:0;align-items:center;gap:8px;display:flex}.header-title h1{letter-spacing:.5px;font-size:20px;font-weight:700}.header-subtitle{color:#93c5fd;white-space:nowrap;font-size:11px}.header-right{-webkit-overflow-scrolling:touch;gap:4px;display:flex;overflow-x:auto}.header-right button{cursor:pointer;white-space:nowrap;color:#e0e7ff;background:#ffffff1f;border:none;border-radius:8px;padding:6px 12px;font-size:13px;transition:all .2s}.header-right button:hover{color:#fff;background:#ffffff40}.header-right button.active{color:var(--primary);background:#fffffff2;font-weight:600}.app-main{flex:1;width:100%;max-width:1000px;margin:0 auto;padding:24px}.welcome-card{border-radius:var(--radius);background:linear-gradient(135deg,#eff6ff,#dbeafe);border:1px solid #bfdbfe;margin-bottom:20px;padding:20px 24px}.welcome-card h2{color:var(--primary);margin-bottom:10px;font-size:17px}.welcome-card p{color:var(--text-secondary);margin-bottom:14px;font-size:13px;line-height:1.7}.welcome-card .guide-steps{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.welcome-card .guide-step{text-align:center;background:#fff;border:1px solid #bfdbfe;border-radius:10px;padding:14px 12px;transition:all .2s}.welcome-card .guide-step:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.welcome-card .guide-step .step-icon{margin-bottom:6px;font-size:24px}.welcome-card .guide-step .step-label{color:var(--primary);font-size:12px;font-weight:600}.welcome-card .guide-step .step-desc{color:var(--text-muted);margin-top:4px;font-size:11px}.step-indicator{justify-content:center;align-items:center;gap:8px;margin-bottom:24px;padding:16px 0;display:flex;overflow-x:auto}.step{color:var(--text-muted);white-space:nowrap;align-items:center;gap:6px;font-size:13px;display:flex}.step.active{color:var(--primary);font-weight:600}.step.done{color:var(--success)}.step-number{width:28px;height:28px;color:var(--text-muted);background:#e2e8f0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.step.active .step-number{background:var(--primary);color:#fff;box-shadow:0 0 0 3px #1e40af33}.step.done .step-number{background:var(--success);color:#fff}.step-line{background:#e2e8f0;flex-shrink:0;width:40px;height:2px}.card{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);margin-bottom:16px;padding:20px}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:4px;padding:8px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:0 2px 6px #1e40af33}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #1e40af59}.btn-secondary{color:var(--text-secondary);background:#f1f5f9}.btn-secondary:hover{background:#e2e8f0}.btn-sm{padding:4px 12px;font-size:12px}textarea,select,input[type=text],input[type=number]{border:1px solid var(--border);background:#fff;border-radius:8px;width:100%;padding:8px 12px;font-family:inherit;font-size:14px;transition:border-color .2s}textarea:focus,select:focus,input:focus{border-color:var(--primary-light);outline:none;box-shadow:0 0 0 3px #3b82f626}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:8px 12px}th{color:var(--text-secondary);background:#f8fafc;font-size:12px;font-weight:600}tr:hover{background:#f8fafc}.app-footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);padding:16px;font-size:11px}@media (width<=768px){.app-header{flex-wrap:wrap;padding:10px 14px}.header-title h1{font-size:16px}.header-subtitle{display:none}.header-right{order:3;width:100%;margin-top:4px}.header-right button{text-align:center;flex:1;padding:5px 10px;font-size:12px}.app-main{padding:14px}.welcome-card .guide-steps{grid-template-columns:repeat(2,1fr)}.welcome-card{padding:16px}.welcome-card h2{font-size:15px}.step-indicator{justify-content:flex-start;gap:4px;padding:12px 0}.step{font-size:11px}.step-line{width:20px}.step-number{width:24px;height:24px;font-size:11px}}@media (width<=480px){.welcome-card .guide-steps{grid-template-columns:1fr 1fr;gap:6px}.welcome-card .guide-step{padding:10px 8px}.welcome-card .guide-step .step-icon{font-size:20px}.welcome-card .guide-step .step-label{font-size:11px}.welcome-card .guide-step .step-desc{display:none}.card{padding:14px}}