:root{--primary-color: #d35400;--secondary-color: #8e44ad;--text-color: #2c3e50;--background-color: #f9f9f9}*{margin:0;padding:0;box-sizing:border-box}body{font-family:PingFang SC,Microsoft YaHei,sans-serif;color:var(--text-color);line-height:1.6;background-color:var(--background-color)}.hero{min-height:90vh;height:auto;background:linear-gradient(135deg,#e67e22,#d35400 35%,#8e44ad);position:relative;overflow:visible;display:flex;align-items:center;padding:2rem 0}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 30% 50%,rgba(255,255,255,.08) 0%,rgba(255,255,255,.03) 25%,transparent 50%),radial-gradient(circle at 70% 50%,rgba(255,255,255,.08) 0%,transparent 50%);opacity:.6}.hero-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 2rem;width:100%;position:relative;overflow:visible;z-index:1;color:#fff}.hero-text{flex:1;text-align:left;margin-right:2rem}.hero-text h1{font-size:3.5rem;margin-bottom:1rem}.subtitle{font-size:1.5rem;margin-bottom:1rem}.description{font-size:1.2rem;margin-bottom:2rem;opacity:.9}.cta-buttons{display:flex;gap:1rem}.download-btn,.learn-more-btn{display:flex;align-items:center;justify-content:center;padding:1rem 2rem;border-radius:50px;text-decoration:none;font-weight:700;font-size:1rem;transition:transform .3s ease;min-width:140px;height:48px}.download-btn{background:#fff;color:var(--primary-color);border:none;cursor:pointer}.learn-more-btn{background:#fff3;color:#fff;border:2px solid white}.download-btn:hover,.learn-more-btn:hover{transform:translateY(-2px)}.hero-image{flex:1;display:flex;justify-content:center;align-items:center;padding:2rem}.app-screenshots{position:relative;display:flex;justify-content:center;width:500px;height:600px}.app-preview{max-width:300px;height:auto;border-radius:32px;border:12px solid #2c3e50;box-shadow:0 30px 60px #00000040,0 0 0 1px #ffffff1a;transform:perspective(1000px) rotateY(-5deg) translate(-30px);transition:transform .3s ease}.preview-secondary{position:absolute;top:50%;left:50%;transform:perspective(1000px) rotateY(-5deg) translate(30px,-50%) translateZ(-50px);opacity:.8}.app-preview:hover{transform:perspective(1000px) rotateY(0) translate(-30px)}.preview-secondary:hover{transform:perspective(1000px) rotateY(0) translate(30px,-50%) translateZ(0);opacity:1}.features{padding:4rem 2rem;max-width:1200px;margin:0 auto}.features h2{text-align:center;color:var(--primary-color);margin-bottom:2rem}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.feature-card{background:#fff;padding:2rem;border-radius:10px;box-shadow:0 4px 6px #0000001a;text-align:center;transition:transform .3s ease}.feature-card:hover{transform:translateY(-5px)}.leaf-icon{font-size:2.5rem;margin-bottom:1rem}.story{background:#fff;padding:4rem 2rem;margin-top:2rem}.story-content{max-width:800px;margin:0 auto;text-align:center}.story h2{color:var(--primary-color);margin-bottom:1.5rem}footer{background-color:var(--text-color);color:#fff;text-align:center;padding:2rem}.falling-leaves{position:absolute;width:100%;height:100%;pointer-events:none}@keyframes falling{0%{transform:translateY(-10%) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(360deg);opacity:0}}.dropdown{position:relative;display:inline-block;z-index:10;padding-bottom:10px}.dropdown-content{display:none;position:absolute;top:100%;left:50%;transform:translate(-50%);background:#fff;min-width:240px;box-shadow:0 8px 16px #0000001a;border-radius:12px;top:calc(100% - 10px);z-index:2;padding:.5rem 0;opacity:0;transition:opacity .3s ease,transform .3s ease;transform:translate(-50%) translateY(-10px);pointer-events:none}.dropdown:hover .dropdown-content{display:block;opacity:1;transform:translate(-50%) translateY(0);pointer-events:auto}.dropdown-content:before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px;background:transparent}.platform-link{display:flex;align-items:center;padding:1.2rem 1.5rem;color:var(--text-color);text-decoration:none;transition:background-color .2s ease;white-space:nowrap;height:60px}.platform-link:hover{background-color:#0000000d}.platform-link:first-child{border-radius:12px 12px 0 0}.platform-link:last-child{border-radius:0 0 12px 12px}.platform-icon{margin-right:1rem;font-size:1.4rem;width:24px;text-align:center}.arrow{display:inline-block;margin-left:.5rem;font-size:.8rem;transition:transform .2s ease}.dropdown:hover .arrow{transform:rotate(180deg)}@media (max-width: 968px){.hero-content{flex-direction:column;text-align:center}.hero-text{margin-right:0;margin-bottom:2rem}.hero-text h1{font-size:2.5rem}.cta-buttons{justify-content:center}.hero-image{margin-top:2rem}.feature-grid{grid-template-columns:1fr}.app-preview{max-width:280px;transform:none}.preview-secondary{display:none}.app-preview:hover{transform:none}.dropdown-content{left:50%;transform:translate(-50%)}}html{scroll-behavior:smooth}