*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#1a1a2e;min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px}.demo-badge{position:fixed;top:12px;left:50%;transform:translate(-50%);background:#4f9eff26;border:1px solid rgba(79,158,255,.3);color:#4a9eff;font-size:12px;font-weight:600;padding:6px 16px;border-radius:20px;z-index:1000}.lang-toggle{position:fixed;top:12px;right:12px;background:#a7c8ff26;border:1px solid rgba(167,200,255,.3);color:#a7c8ff;font-size:11px;font-weight:600;padding:4px 10px;border-radius:4px;cursor:pointer;z-index:999}.lang-toggle:hover{background:#a7c8ff40}.sim-panel{position:fixed;top:12px;left:12px;background:#000000b3;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:12px;z-index:999;min-width:200px}.sim-panel h4{color:#a7c8ff;font-size:11px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}.sim-panel label{display:block;color:#888;font-size:10px;margin-bottom:4px}.sim-panel input{width:100%;background:#222;border:1px solid #444;color:#fff;font-size:11px;padding:6px 8px;border-radius:4px;margin-bottom:8px;font-family:Consolas,monospace}.sim-panel input:focus{outline:none;border-color:#4a9eff}.sim-panel .result{font-size:11px;padding:8px;border-radius:4px;margin-top:4px}.sim-panel .result.show{background:#69db7c26;color:#69db7c}.sim-panel .result.hide{background:#ff6b6b26;color:#ff6b6b}.phone-frame{width:390px;height:844px;border-radius:44px;overflow:hidden;background:#fff;position:relative;box-shadow:0 0 0 12px #111,0 0 60px #00000080}.phone-screen{width:100%;height:100%;display:flex;flex-direction:column;background:#fff;overflow:hidden}.status-bar{display:flex;justify-content:space-between;padding:14px 28px 10px;font-size:14px;font-weight:600;color:#1a1a1a;background:#fff}.nav-header{background:#fff;padding:12px 20px;display:flex;align-items:center;border-bottom:1px solid #f0f0f0;position:relative}.nav-back{font-size:22px;cursor:pointer;position:absolute;left:20px;color:#1a1a1a}.nav-title{font-size:17px;font-weight:600;flex:1;text-align:center;color:#1a1a1a}.modal-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.warning-banner{background:#fef2f2;padding:16px;display:flex;gap:12px;align-items:flex-start;margin:0}.warning-icon{flex-shrink:0;width:24px;height:24px}.warning-text h3{color:#dc2626;font-size:14px;font-weight:700;margin-bottom:4px}.warning-text p{color:#7f1d1d;font-size:13px;line-height:1.4}.step-content-wrapper{flex:1;overflow-y:auto;padding:20px}.step-content{display:flex;flex-direction:column}.step-description{font-size:15px;color:#1a1a1a;line-height:1.5;margin-bottom:16px;font-weight:500}.terminal-images{display:flex;flex-direction:column;gap:16px;margin-bottom:16px}.terminal-image-item{display:flex;flex-direction:column;align-items:center}.terminal-image-item .placeholder{width:100%;aspect-ratio:4/3;background:#f5f5f5;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:2px dashed #ddd}.terminal-image-item .placeholder span{font-size:11px;color:#999}.terminal-label{margin-top:8px;font-size:13px;font-weight:600;color:#1a1a1a;text-align:center}.step-image{margin-bottom:16px}.step-image .placeholder{width:100%;aspect-ratio:4/3;background:#f5f5f5;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:2px dashed #ddd}.step-image .placeholder span{font-size:11px;color:#999}.step3-section{margin-bottom:16px}.step3-section .section-text{font-size:14px;color:#f97316;margin-bottom:12px;display:flex;align-items:center;gap:6px}.step3-section .section-text:before{content:"•";font-size:18px}.step3-section .placeholder{width:100%;aspect-ratio:16/10;background:#f5f5f5;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:2px dashed #ddd}.step3-section .placeholder span{font-size:11px;color:#999}.confirm-checkbox{display:flex;align-items:center;gap:12px;padding:16px;background:#f9fafb;border-radius:12px;cursor:pointer;margin-top:auto}.checkbox-custom{width:22px;height:22px;border:2px solid #d1d5db;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}.checkbox-custom svg{width:14px;height:14px;fill:#fff;opacity:0;transition:opacity .2s}.confirm-checkbox.checked .checkbox-custom{background:#f97316;border-color:#f97316}.confirm-checkbox.checked .checkbox-custom svg{opacity:1}.checkbox-label{font-size:14px;color:#374151;line-height:1.4}.modal-buttons{display:flex;gap:12px;padding:16px 20px 34px;background:#fff;border-top:1px solid #f0f0f0}.btn{flex:1;padding:14px;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;border:none;transition:all .2s}.btn-secondary{background:#f3f4f6;color:#374151}.btn-secondary:hover{background:#e5e7eb}.btn-primary{background:#f97316;color:#fff}.btn-primary:hover{background:#ea580c}.btn-primary.disabled{background:#fed7aa;cursor:not-allowed}.return-screen{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center}.return-icon{width:64px;height:64px;border-radius:50%;background:#f0f0f0;display:flex;align-items:center;justify-content:center;margin-bottom:16px}.return-screen h2{font-size:18px;color:#333;margin-bottom:8px}.return-screen p{font-size:14px;color:#666;margin-bottom:24px}.trigger-btn{background:#f97316;color:#fff;border:none;padding:12px 24px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer}.trigger-btn:hover{background:#ea580c}
