:root{--bg: #080c18;--bg2: #0f1525;--bg-card: rgba(20,28,48,.7);--blue: #4a9eff;--blue-glow: rgba(74,158,255,.3);--cyan: #5ce0d4;--amber: #f0a060;--amber-glow: rgba(240,160,96,.25);--rose: #e87080;--text: #e8ecf4;--muted: #8899b4;--dim: #556680;--border: rgba(255,255,255,.06);--border-glow: rgba(74,158,255,.15)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%;overflow:hidden;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;background:var(--bg);color:var(--text);user-select:none;-webkit-user-select:none}.bg-deep{position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 30% 20%,rgba(74,158,255,.06) 0%,transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(240,160,96,.05) 0%,transparent 50%),var(--bg);z-index:0}.bg-grid{position:fixed;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);background-size:60px 60px;z-index:0;pointer-events:none}.particles{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:1}.dot{position:absolute;border-radius:50%;background:var(--blue);opacity:0}@keyframes dotFloat1{0%{opacity:0;transform:translateY(0) scale(1)}5%{opacity:.6}90%{opacity:.1}to{opacity:0;transform:translateY(-110vh) scale(.2)}}@keyframes dotFloat2{0%{opacity:0;transform:translateY(0) scale(1.2)}8%{opacity:.4}90%{opacity:.08}to{opacity:0;transform:translateY(-110vh) scale(.3)}}.stage{width:100vw;height:100vh;position:relative;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2}.click-hint{position:fixed;bottom:32px;right:32px;color:#ffffff1a;font-size:13px;z-index:99;pointer-events:none;transition:opacity .4s}.screen{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:5vw 7vw}@keyframes heroBoom{0%{opacity:0;transform:scale(.1);filter:blur(40px)}55%{filter:blur(0)}75%{transform:scale(1.03)}to{opacity:1;transform:scale(1);filter:blur(0)}}@keyframes rise{0%{opacity:0;transform:translateY(36px)}to{opacity:1;transform:translateY(0)}}@keyframes riseSlow{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{opacity:0;transform:scale(0)}65%{transform:scale(1.1)}85%{transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes slideRight{0%{opacity:0;transform:translate(-100px)}to{opacity:1;transform:translate(0)}}@keyframes slideLeft{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(80px)}to{opacity:1;transform:translateY(0)}}@keyframes flipUp{0%{opacity:0;transform:perspective(600px) rotateX(85deg)}to{opacity:1;transform:perspective(600px) rotateX(0)}}@keyframes scaleReveal{0%{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}@keyframes glowPulse{0%,to{box-shadow:0 0 15px var(--blue-glow),0 0 40px #4a9eff14}50%{box-shadow:0 0 30px var(--blue-glow),0 0 80px #4a9eff2e}}@keyframes amberPulse{0%,to{box-shadow:0 0 12px var(--amber-glow)}50%{box-shadow:0 0 36px var(--amber-glow)}}@keyframes typeIn{0%{width:0;opacity:0}1%{opacity:1}to{width:100%;opacity:1}}@keyframes spinSlow{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes softFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes drawLine{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes fadeIn{to{opacity:1}}.anim-heroBoom{animation:heroBoom 1s cubic-bezier(.16,1,.3,1) both}.anim-rise{animation:rise .75s cubic-bezier(.16,1,.3,1) both}.anim-riseSlow{animation:riseSlow 1s cubic-bezier(.16,1,.3,1) both}.anim-popIn{animation:popIn .55s cubic-bezier(.34,1.56,.64,1) both}.anim-slideRight{animation:slideRight .7s cubic-bezier(.16,1,.3,1) both}.anim-slideLeft{animation:slideLeft .7s cubic-bezier(.16,1,.3,1) both}.anim-slideUp{animation:slideUp .8s cubic-bezier(.16,1,.3,1) both}.anim-flipUp{animation:flipUp .7s ease both}.anim-scaleReveal{animation:scaleReveal .7s ease both}.anim-glowPulse{animation:glowPulse 3s ease-in-out infinite}.anim-amberPulse{animation:amberPulse 2.5s ease-in-out infinite}.anim-spinSlow{animation:spinSlow 50s linear infinite}.anim-softFloat{animation:softFloat 5s ease-in-out infinite}.anim-drawLine{animation:drawLine .8s ease both;transform-origin:center}.d1{animation-delay:.1s}.d2{animation-delay:.2s}.d3{animation-delay:.3s}.d4{animation-delay:.4s}.d5{animation-delay:.5s}.d6{animation-delay:.6s}.d7{animation-delay:.7s}.d8{animation-delay:.8s}.d9{animation-delay:.9s}.d10{animation-delay:1s}.d12{animation-delay:1.2s}.d15{animation-delay:1.5s}.d18{animation-delay:1.8s}.d20{animation-delay:2s}.chapter-tag{font-size:11px;letter-spacing:6px;color:var(--blue);margin-bottom:40px;font-weight:600;opacity:.85}.hero-title{font-size:clamp(32px,5.5vw,72px);font-weight:800;text-align:center;line-height:1.2;letter-spacing:2px;color:var(--text)}.hero-title em{font-style:normal;color:var(--amber)}.big-question{font-size:clamp(22px,3.5vw,44px);font-weight:300;text-align:center;line-height:1.55;color:var(--muted);max-width:750px}.big-question strong{color:var(--text);font-weight:600}.body-text{font-size:clamp(16px,2vw,24px);text-align:center;line-height:1.9;max-width:680px;color:var(--muted);white-space:pre-line}.quote-text{font-size:clamp(18px,2.4vw,30px);text-align:center;line-height:1.8;max-width:700px;color:var(--text);font-style:italic}.quote-author{font-size:14px;color:var(--dim);margin-top:20px;letter-spacing:3px;font-style:normal}.ornament{width:60px;height:2px;background:linear-gradient(90deg,transparent,var(--blue),transparent);margin:0 auto 24px}.ornament-amber{width:60px;height:2px;background:linear-gradient(90deg,transparent,var(--amber),transparent);margin:0 auto 24px}.card-row{display:flex;gap:22px;flex-wrap:wrap;justify-content:center;max-width:960px}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:16px;padding:28px 26px;width:210px;text-align:center;transition:all .4s}.card:hover{border-color:var(--blue);transform:translateY(-8px);box-shadow:0 20px 48px #00000080,0 0 30px #4a9eff0f}.card-icon{font-size:34px;margin-bottom:14px;display:block}.card-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px}.card-desc{font-size:13px;color:var(--muted);line-height:1.5}.quote-bubble{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(240,160,96,.2);border-radius:20px;padding:32px 36px;max-width:650px;text-align:center;animation:amberPulse 3s ease-in-out infinite}.quote-bubble .mark{font-size:40px;color:var(--amber);line-height:.5}.stat-row{display:flex;gap:36px;flex-wrap:wrap;justify-content:center}.stat{text-align:center}.stat-num{font-size:clamp(28px,4vw,52px);font-weight:900;color:var(--blue)}.stat-label{font-size:13px;color:var(--muted);margin-top:6px;letter-spacing:2px}.concept-row{display:flex;gap:20px;flex-wrap:wrap;justify-content:center;max-width:800px}.concept{background:var(--bg-card);border:1px solid var(--border);border-radius:40px;padding:12px 28px;font-size:15px;color:var(--text);letter-spacing:1px;transition:all .3s}.concept:hover{border-color:var(--cyan);color:var(--cyan)}.ring{position:absolute;border-radius:50%;border:1px solid rgba(74,158,255,.05);pointer-events:none}.ring-1{width:500px;height:500px;animation:spinSlow 45s linear infinite}.ring-2{width:700px;height:700px;animation:spinSlow 55s linear infinite reverse}.progress-bar-wrap{position:fixed;bottom:0;left:0;right:0;height:3px;background:#ffffff05;z-index:100;opacity:0;transition:opacity .4s}.progress-bar-wrap:hover,.stage:hover~.progress-bar-wrap{opacity:1}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan),var(--amber));transition:width .4s ease}.step-counter{position:fixed;top:20px;right:24px;font-size:12px;color:var(--dim);z-index:100;opacity:0;transition:opacity .4s}.stage:hover~.step-counter,.step-counter:hover{opacity:1}.shutter{position:fixed;top:0;right:0;bottom:0;left:0;background:#080c18;pointer-events:none;z-index:200;opacity:0}.shutter.flash{opacity:.7;transition:none}
