*{margin:0;padding:0;box-sizing:border-box}
body{background:#0a0f1a;color:#fff;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;overflow:hidden;width:100vw;height:100vh}
.video-container{width:100%;height:100%;position:relative;overflow:hidden}
.scene{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.97);transition:opacity 0.6s ease,transform 0.6s ease;pointer-events:none;z-index:1}
.scene.active{opacity:1;transform:scale(1);pointer-events:auto;z-index:10}
.scene.exiting{opacity:0;transform:scale(1.03);z-index:5}

.bg-gradient{position:absolute;inset:0;z-index:0}
.bg-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:0.12;animation:orbFloat 8s ease-in-out infinite;z-index:0}
.bg-orb.orb1{width:400px;height:400px;top:-100px;right:-100px;animation-delay:0s}
.bg-orb.orb2{width:300px;height:300px;bottom:-80px;left:-80px;animation-delay:3s}
.bg-orb.orb3{width:250px;height:250px;top:50%;left:50%;animation-delay:5s}
@keyframes orbFloat{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-20px)}}

.progress-bar{position:absolute;top:0;left:0;height:3px;z-index:100;transition:width 0.3s ease}

.intro-content{text-align:center;z-index:20;max-width:700px;padding:40px;position:relative}
.intro-badge{display:inline-block;font-size:0.8rem;font-weight:600;padding:6px 18px;border-radius:20px;margin-bottom:24px;letter-spacing:0.5px}
.intro-title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.15;margin-bottom:16px;color:#f8fafc;text-shadow:0 2px 30px rgba(0,0,0,0.8)}
.intro-sub{font-size:clamp(1rem,2vw,1.2rem);color:#cbd5e1;line-height:1.6}
.intro-time{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:0.95rem;font-weight:600}
.intro-time svg{width:20px;height:20px}

.step-scene{display:flex;align-items:stretch;height:100%;padding:40px}
.step-left{flex:0 0 38%;display:flex;flex-direction:column;justify-content:center;padding:0 40px 0 60px}
.step-right{flex:1;display:flex;align-items:center;justify-content:center;padding:20px 40px 20px 0}

.step-number{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;font-weight:800;font-size:0.9rem;margin-bottom:16px}
.step-title{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;margin-bottom:12px;line-height:1.2;color:#f8fafc}
.step-desc{color:#94a3b8;font-size:0.95rem;line-height:1.7;margin-bottom:20px}
.step-features{list-style:none}
.step-features li{color:#cbd5e1;font-size:0.88rem;padding:6px 0;display:flex;align-items:center;gap:8px}
.step-features li::before{content:'✓';font-size:0.75rem;flex-shrink:0}

.mockup-panel{background:#111827;border-radius:14px;width:100%;max-width:520px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,0.5)}
.mockup-header{background:rgba(255,255,255,0.04);padding:10px 16px;display:flex;align-items:center;gap:6px;border-bottom:1px solid rgba(255,255,255,0.05)}
.mockup-dot{width:8px;height:8px;border-radius:50%}
.mockup-body{padding:20px}

.field-group{margin-bottom:14px}
.field-label{font-size:0.75rem;color:#888;margin-bottom:5px;font-weight:600}
.field-input{width:100%;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);border-radius:6px;padding:9px 12px;color:#fff;font-size:0.85rem}
.field-input.typing{border-color:rgba(78,205,196,0.5);box-shadow:0 0 0 2px rgba(78,205,196,0.1)}
.typing-cursor{display:inline-block;width:2px;height:14px;background:#4ecdc4;animation:blink 0.8s infinite;vertical-align:middle;margin-left:2px}
@keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}

.scene-counter{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:50}
.scene-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,0.2);transition:all 0.3s}
.scene-dot.active{width:24px;border-radius:4px}

.replay-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;border-radius:8px;font-size:0.9rem;cursor:pointer;margin-top:20px;transition:background 0.2s;border:none}
.replay-btn:hover{filter:brightness(1.2)}

.pause-btn{position:absolute;top:12px;right:16px;z-index:100;background:rgba(0,0,0,0.4);border:1px solid rgba(255,255,255,0.15);color:#fff;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:0.9rem;transition:background 0.2s}
.pause-btn:hover{background:rgba(0,0,0,0.6)}

.back-link{position:absolute;top:12px;left:16px;z-index:100;color:rgba(255,255,255,0.5);text-decoration:none;font-size:0.8rem;display:flex;align-items:center;gap:4px;transition:color 0.2s}
.back-link:hover{color:#fff}

.mockup-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:8px;padding:12px;margin-bottom:10px}
.mockup-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.mockup-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.mockup-badge{font-size:0.65rem;padding:2px 8px;border-radius:10px;font-weight:600}
.mockup-bar{height:6px;border-radius:3px;background:rgba(255,255,255,0.06)}
.mockup-bar-fill{height:100%;border-radius:3px;transition:width 1.5s ease}
.mockup-btn{padding:8px 16px;border-radius:6px;font-size:0.8rem;font-weight:600;border:none;cursor:pointer;transition:all 0.3s}
.mockup-grid{display:grid;gap:8px}
.mockup-stat{text-align:center;padding:10px;background:rgba(255,255,255,0.03);border-radius:8px}
.mockup-stat .value{font-size:1.1rem;font-weight:700;margin-bottom:2px}
.mockup-stat .label{font-size:0.7rem;color:#888}

.mockup-tab-bar{display:flex;gap:2px;margin-bottom:14px;background:rgba(255,255,255,0.03);border-radius:6px;padding:2px}
.mockup-tab{flex:1;padding:6px 10px;border-radius:4px;font-size:0.72rem;text-align:center;color:#888;cursor:pointer;transition:all 0.3s}
.mockup-tab.active{background:rgba(255,255,255,0.08);color:#fff;font-weight:600}

.mockup-list-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.04)}
.mockup-list-item:last-child{border-bottom:none}

@media (max-width: 768px) {
.step-scene{flex-direction:column;padding:20px;overflow-y:auto}
.step-left{flex:none;padding:0 16px 16px;text-align:center}
.step-right{flex:none;padding:10px 16px}
.step-title{font-size:1.3rem}
.step-desc{font-size:0.85rem}
.mockup-panel{max-width:100%}
.intro-content{padding:20px}
}

@media (prefers-reduced-motion: reduce) {
.scene{transition:none}
.bg-orb{animation:none}
.typing-cursor{animation:none;opacity:1}
}