@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap";:root{--bg: #F8FAFC;--bg-mesh: radial-gradient(at 10% 20%, hsla(150, 50%, 74%, .15) 0px, transparent 50%), radial-gradient(at 80% 0%, hsla(180, 50%, 75%, .15) 0px, transparent 50%), radial-gradient(at 90% 80%, hsla(160, 40%, 76%, .12) 0px, transparent 50%), radial-gradient(at 10% 90%, hsla(140, 50%, 77%, .12) 0px, transparent 50%);--bg-alt: #F1F5F9;--bg-surface: rgba(255, 255, 255, .85);--bg-card: rgba(255, 255, 255, .82);--bg-card-hover: rgba(255, 255, 255, .9);--primary: #059669;--primary-light: #10B981;--primary-dim: #047857;--accent: #0D9488;--text: #1C1917;--text-secondary: #44403C;--text-dim: #78716C;--gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));--font-display: "Playfair Display", "Noto Serif SC", "Songti SC", serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 28px;--radius-full: 9999px;--shadow-lg: 0 8px 40px rgba(0,0,0,.4);--shadow-glow: 0 0 30px rgba(202,138,4,.3);--ease-out: cubic-bezier(.16, 1, .3, 1);--duration-fast: .3s;--duration-normal: .5s;--duration-slow: .8s}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%;overflow-x:hidden}body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;background-attachment:fixed}@media(max-width:768px){body{background:var(--bg);background-image:radial-gradient(rgba(5,150,105,.05) 1px,transparent 1px);background-size:30px 30px}}@media(min-width:769px){body{background-image:radial-gradient(rgba(5,150,105,.05) 1px,transparent 1px),var(--bg-mesh);background-size:30px 30px,100% 100%}}img{max-width:100%;height:auto;display:block}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}a{color:inherit;text-decoration:none}::selection{background:#10b9814d}.intro-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#f6f3f8;display:flex;align-items:center;justify-content:center;overflow:hidden}.intro-screen.fade-out{opacity:0;transition:opacity .5s ease-out}.intro-content{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.intro-gif{position:fixed;top:0;left:0;width:100vw;height:100vh;object-fit:cover}.intro-start-prompt{position:absolute;bottom:15%;left:0;right:0;width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#666;font-size:1.2rem;letter-spacing:.3em;cursor:pointer;animation:pulse 2s ease-in-out infinite}.intro-start-prompt p{margin:0;font-family:var(--font-display);text-align:center;width:100%}.intro-start-arrow{font-size:2rem;margin-top:10px;animation:bounce 1.5s ease-in-out infinite}.intro-skip{position:absolute;top:20px;right:20px;padding:8px 16px;background:#ffffff26;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:20px;font-size:.75rem;color:var(--text-dim);cursor:pointer;z-index:1001;transition:all .3s ease;border:1px solid rgba(255,255,255,.1)}.intro-skip:hover{background:#05966933;color:var(--primary);border-color:#0596694d}.intro-loading{position:absolute;display:flex;flex-direction:column;align-items:center;gap:20px;z-index:20}.loading-spinner{width:50px;height:50px;border:3px solid rgba(5,150,105,.2);border-top-color:#059669;border-radius:50%;animation:spin 1s linear infinite}.loading-text{font-size:.9rem;color:#78716c;letter-spacing:.1em}@keyframes spin{to{transform:rotate(360deg)}}.intro-title{position:absolute;font-family:var(--font-display);font-weight:900;color:#059669;text-align:center;z-index:10;opacity:0;transform:translateY(20px)}.intro-title .title-line{display:block;font-size:clamp(2rem,8vw,4rem);letter-spacing:.15em;line-height:1.4;text-shadow:0 4px 20px rgba(5,150,105,.2)}.intro-title .title-line.sub{font-size:clamp(1.5rem,6vw,3rem);opacity:.9}.main-content{opacity:1;transition:opacity .5s ease-out}.main-content.hidden{opacity:0;pointer-events:none}#particles-canvas{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}.progress-bar{position:fixed;top:0;left:0;width:3px;height:0%;background:var(--gradient-primary);z-index:1000;box-shadow:0 0 10px #10b98180}.section{position:relative;z-index:1;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl) var(--space-lg)}.section-inner{width:100%;max-width:600px;margin:0 auto;position:relative;will-change:transform,opacity}.section-badge{display:inline-block;font-family:var(--font-mono);font-size:.8rem;color:var(--primary-dim);border:1px solid rgba(5,150,105,.3);border-radius:var(--radius-full);padding:4px 16px;margin-bottom:var(--space-md);letter-spacing:.2em;opacity:.8;background:#0596690d}.section-title{font-family:var(--font-display);font-size:clamp(2rem,7vw,3rem);font-weight:700;color:var(--text);margin-bottom:var(--space-xl);line-height:1.2;letter-spacing:.05em;position:relative}.section-title:after{content:"";position:absolute;bottom:-10px;left:0;width:40px;height:3px;background:var(--gradient-primary);border-radius:2px}.scene-image{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid rgba(16,185,129,.1);will-change:transform;transition:transform .3s ease}.feature-visual{position:relative;margin-bottom:var(--space-xl)}.image-glow{position:absolute;bottom:-20px;left:50%;transform:translate(-50%);width:80%;height:40px;background:radial-gradient(ellipse,rgba(16,185,129,.15),transparent 70%);filter:blur(15px);pointer-events:none}.btn-more{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:.5rem 1.25rem;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;transition:background-color .15s,color .15s,box-shadow .15s;background:var(--bg-surface);border:1px solid rgba(5,150,105,.4);color:var(--primary-dim);box-shadow:0 1px 2px #0000000d;cursor:pointer;white-space:nowrap}.btn-more:after{content:"→";transition:transform var(--duration-fast)}.btn-more:hover{background-color:var(--primary);color:#fff;border-color:var(--primary)}.btn-more:active{opacity:.9;transform:translateY(1px)}.more-panel-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#1c1917bf;z-index:999;opacity:0;pointer-events:none;transition:opacity var(--duration-normal) var(--ease-out)}@media(min-width:769px){.more-panel-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}}.more-panel-overlay.active{opacity:1;pointer-events:all}.more-panel{position:fixed;bottom:0;left:0;right:0;max-height:80vh;max-height:80dvh;background:var(--bg-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;z-index:1000;transform:translateY(100%);transition:transform var(--duration-slow) var(--ease-out);overflow-y:auto;-webkit-overflow-scrolling:touch;border-top:1px solid rgba(255,255,255,.5);box-shadow:0 -4px 24px #0596691a;overscroll-behavior:contain}@media(min-width:769px){.more-panel{-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px)}}.more-panel.active{transform:translateY(0);touch-action:pan-y}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg) var(--space-xl);position:sticky;top:0;background:var(--bg-surface);border-bottom:1px solid rgba(255,255,255,.05);z-index:1}@media(min-width:769px){.panel-header{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}}.panel-header h3{font-family:var(--font-display);font-size:1.1rem;color:var(--primary)}.panel-close{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#00000008;color:var(--text-dim);font-size:1.25rem;transition:all var(--duration-fast);cursor:pointer;border:1px solid rgba(0,0,0,.05)}.panel-close:hover{background:#0596691a;color:var(--primary);border-color:#05966933}.panel-close:active{background:#05966933;transform:scale(.95)}.panel-body{padding:var(--space-lg) var(--space-xl) var(--space-3xl);overscroll-behavior:contain}.panel-body>p{color:var(--text-secondary);margin-bottom:var(--space-xl);line-height:1.8}.panel-feature{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:var(--space-lg);margin-bottom:var(--space-md);border:1px solid rgba(255,255,255,.05);transition:border-color var(--duration-fast)}.panel-feature:hover{border-color:#05966933}.panel-feature h4{font-size:1rem;margin-bottom:var(--space-sm);color:var(--text)}.panel-feature p{font-size:.875rem;color:var(--text-secondary);line-height:1.7}.data-showcase{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md);margin-bottom:var(--space-xl)}.data-card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:var(--space-xl) var(--space-lg);text-align:center;border:1px solid #0596691a;position:relative;overflow:hidden;transition:transform var(--duration-fast)}.data-card:hover{transform:translateY(-2px);border-color:#0596694d;box-shadow:var(--shadow-glow)}.data-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary)}.data-number{font-family:var(--font-mono);font-size:2.5rem;font-weight:700;color:var(--primary);display:inline}.data-unit{font-size:1.2rem;color:var(--primary);display:inline;margin-left:2px}.data-label{font-size:.875rem;margin-top:var(--space-sm);color:var(--text)}.data-source{font-size:.75rem;color:var(--text-dim);margin-top:var(--space-xs)}.case-card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:var(--space-xl);border:1px solid rgba(255,255,255,.05);margin-bottom:var(--space-lg);transition:border-color var(--duration-fast)}.case-card:hover{border-color:#ffffff26}.case-card h4{font-family:var(--font-display);font-size:1.1rem;color:var(--primary-light);margin-bottom:var(--space-sm)}.case-card p{font-size:.875rem;color:var(--text-secondary);line-height:1.8;margin-bottom:var(--space-md)}.case-tags{display:flex;flex-wrap:wrap;gap:var(--space-sm)}.case-tag{font-size:.75rem;padding:2px 10px;border-radius:var(--radius-full);background:#05966914;color:var(--primary-light);border:1px solid #05966926}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#10b98133;border-radius:2px}.portrait-lock{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;background:var(--bg);background-image:var(--bg-mesh);display:none;align-items:center;justify-content:center;text-align:center;padding:var(--space-xl)}.portrait-lock-inner{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);color:var(--text);padding:var(--space-2xl);background:var(--bg-surface);border-radius:var(--radius-xl);border:1px solid rgba(16,185,129,.2);box-shadow:0 20px 50px #0596691a}.portrait-lock h3{font-family:var(--font-display);font-size:1.5rem;color:var(--primary)}.portrait-lock p{font-size:.9rem;color:var(--text-dim);letter-spacing:.1em}.rotate-icon{width:80px;height:80px;border-radius:50%;background:#0596691a;color:var(--primary);display:flex;align-items:center;justify-content:center;animation:rotate-hint 2s ease-in-out infinite;margin-bottom:var(--space-sm)}@keyframes rotate-hint{0%,to{transform:rotate(0)}50%{transform:rotate(-90deg)}}@media(orientation:landscape)and (max-width:900px){.portrait-lock{display:flex}body{overflow:hidden}}.section-hero{background:radial-gradient(ellipse at 50% 30%,#0596690d,transparent 60%),var(--bg);text-align:center;overflow:hidden}.hero-content{position:relative;z-index:2}.hero-title{font-family:var(--font-display);font-size:clamp(3.5rem,15vw,6rem);font-weight:900;letter-spacing:.1em;line-height:1.2;color:var(--text);margin-bottom:var(--space-lg);text-shadow:0 4px 20px rgba(0,0,0,.05)}.hero-title .char{display:inline-block;opacity:0;transform:translateY(40px);filter:blur(8px)}.hero-subtitle{font-size:clamp(.9rem,4vw,1.2rem);color:var(--primary-dim);letter-spacing:.35em;opacity:0;transform:translateY(20px);font-weight:500}.hero-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:500px;height:500px;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(5,150,105,.08),transparent 70%);animation:glow-pulse 4s ease-in-out infinite}.scroll-indicator{position:absolute;bottom:8vh;left:0;width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-xs);opacity:0;z-index:10;pointer-events:none;transform:none}.scroll-text{display:block;font-size:.75rem;color:var(--text-dim);letter-spacing:.2em;text-indent:.2em;text-align:center;width:100%}.scroll-arrow{color:var(--primary);animation:bounce 2s ease-in-out infinite;display:flex;align-items:center;justify-content:center;width:100%}.section-what{background:linear-gradient(180deg,var(--bg),var(--bg-surface) 50%,var(--bg))}.what-content{display:flex;flex-direction:column;gap:var(--space-xl)}.what-visual{position:relative;margin-bottom:var(--space-md)}.what-text{display:flex;flex-direction:column;align-items:center;gap:var(--space-md)}.concept-card{width:100%;background:#ffffffb3;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);padding:var(--space-xl);text-align:center;border:1px solid rgba(255,255,255,.9);opacity:0;transform:translateY(30px);box-shadow:0 10px 40px #0596690d}.concept-card.concept-result{border-color:#0596694d;box-shadow:0 15px 40px #0596691a;background:linear-gradient(135deg,#ffffffe6,#fef3c799)}.concept-icon{font-size:2rem;margin-bottom:var(--space-sm);color:var(--primary)}.concept-card h3{font-family:var(--font-display);font-size:1.2rem;margin-bottom:var(--space-xs);font-weight:700}.concept-card p{font-size:.95rem;color:var(--text-secondary);line-height:1.6;font-weight:500}.concept-plus,.concept-equals{font-size:1.5rem;color:var(--primary);font-weight:700;opacity:0}.section-gameplay{background:linear-gradient(180deg,var(--bg),var(--bg-surface) 50%,var(--bg))}.gameplay-container{display:flex;flex-direction:column;gap:var(--space-xl);position:relative}.gameplay-container:before{content:"";position:absolute;top:28px;bottom:100px;left:27px;width:2px;background:linear-gradient(180deg,var(--primary),var(--accent),var(--primary));opacity:.2}.gameplay-step{display:flex;flex-direction:column;align-items:flex-start;padding-left:var(--space-3xl);position:relative;opacity:0;transform:translate(-20px)}.step-number{position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;background:var(--bg-card);border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.875rem;color:var(--primary);font-weight:700;z-index:2}.step-title{font-family:var(--font-display);font-size:1.2rem;margin-bottom:var(--space-sm)}.step-desc{font-size:.9rem;color:var(--text-secondary);line-height:1.7}.loop-step{margin-top:var(--space-md);cursor:default}.loop-step .step-number{border-style:dashed}.loop-indicator{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;opacity:0;z-index:1}.loop-svg{position:absolute;top:28px;left:-10px;width:80px;height:calc(100% - 60px);overflow:visible}.loop-path{stroke-dasharray:8 8;animation:loop-flow 1s linear infinite}@keyframes loop-flow{0%{stroke-dashoffset:16}to{stroke-dashoffset:0}}@media(max-width:480px){.loop-svg{left:-15px;width:60px}}.section-feature{background:linear-gradient(180deg,var(--bg),var(--bg-surface) 40%,var(--bg))}.feature-tagline{font-family:var(--font-display);font-size:clamp(1rem,4vw,1.2rem);color:var(--text);line-height:1.8;text-align:center;margin-bottom:var(--space-md)}.section-ending{background:radial-gradient(ellipse at 50% 70%,#0596690f,transparent 60%),var(--bg);text-align:center}.ending-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-xl)}.ending-logo{font-family:var(--font-display);font-size:1.2rem;letter-spacing:.3em;color:var(--primary);opacity:.6}.ending-title{font-family:var(--font-display);font-size:clamp(1.8rem,7vw,2.5rem);font-weight:900;line-height:1.4;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.ending-subtitle{font-size:.9rem;color:var(--text-secondary);letter-spacing:.2em}.cta-buttons{display:flex;gap:var(--space-md);margin-top:var(--space-xl);justify-content:center;flex-wrap:wrap}.cta-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:.75rem 1.75rem;border-radius:var(--radius-md);font-size:1rem;font-weight:500;transition:background-color .15s,color .15s,box-shadow .15s,transform .1s;box-shadow:0 1px 2px #0000000d;cursor:pointer;white-space:nowrap}.cta-phone{background-color:var(--primary);color:#fff;border:none}.cta-phone:hover{background-color:var(--primary-dim);box-shadow:0 4px 15px #05966933}.cta-phone:active{transform:translateY(1px)}.cta-wechat{background-color:transparent;border:1px solid var(--primary);color:var(--primary)}.cta-wechat:hover{background-color:#0596690d;border-color:var(--primary-dim)}.cta-wechat:active{transform:translateY(1px)}.btn-top{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:var(--radius-md);font-size:.875rem;color:var(--text-dim);background:transparent;border:1px solid transparent;transition:color .15s,background-color .15s;margin-top:var(--space-xl);cursor:pointer}.btn-top:hover{color:var(--primary);background-color:#0596690d}.section-fluid{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg-alt);color:var(--text);z-index:1}.fluid-background{position:absolute;top:-10%;left:-10%;width:120%;height:120%;background:url(/assets/bg-ambient-D5uhbeRX.png) center/cover no-repeat;opacity:.8;z-index:-1;animation:ambient-drift 30s ease-in-out infinite alternate}@keyframes ambient-drift{0%{transform:translateZ(0)}to{transform:translate3d(-2%,-2%,0)}}.fluid-background:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at center,rgba(250,250,250,.2) 0%,var(--bg) 100%)}#fluid-canvas{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;height:90%;z-index:2;cursor:pointer;max-width:800px}.section-fluid:before,.section-fluid:after{content:"";position:absolute;width:40px;height:40px;border:1px solid rgba(5,150,105,.4);z-index:10;pointer-events:none}.section-fluid:before{top:5%;left:5%;border-right:none;border-bottom:none}.section-fluid:after{bottom:5%;right:5%;border-left:none;border-top:none}.fluid-orb{position:absolute;top:0;left:0;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fffc,#ffffff1a);backdrop-filter:blur(8px) brightness(1.1);-webkit-backdrop-filter:blur(8px) brightness(1.1);border:1px solid rgba(255,255,255,.9);box-shadow:0 15px 35px #05966926,inset 0 0 30px #fffc,inset 20px 0 40px #34d39933;transform:translate(-50%,-50%);pointer-events:none;z-index:3;opacity:0;transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .1s ease-out}.section-fluid:hover .fluid-orb{opacity:1}.fluid-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@keyframes glow-pulse{0%,to{opacity:.5;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.2)}}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(8px)}60%{transform:translateY(4px)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes shimmer{0%{background-position:-200% center}to{background-position:200% center}}@keyframes rotate-slow{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes dash{to{stroke-dashoffset:-20}}