*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--text-dark: #1f2937;--text-light: #6b7280;--bg-light: #f9fafb;--white: #ffffff;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;color:var(--text-dark);overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;width:100%;background:var(--white);box-shadow:var(--shadow);z-index:1000;transition:all .3s ease}.navbar .container{display:flex;justify-content:space-between;align-items:center;padding:1rem 20px}.logo{font-size:1.5rem;font-weight:700;color:var(--primary-color)}.nav-menu{display:flex;list-style:none;gap:2rem}.nav-menu a{text-decoration:none;color:var(--text-dark);font-weight:500;transition:color .3s ease;position:relative}.nav-menu a:hover{color:var(--primary-color)}.nav-menu a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:width .3s ease}.nav-menu a:hover:after{width:100%}.hamburger{display:none;flex-direction:column;cursor:pointer;gap:4px}.hamburger span{width:25px;height:3px;background:var(--text-dark);transition:all .3s ease}.hero{position:relative;height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;margin-top:60px}.hero-background{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);opacity:.1;z-index:-1}.hero-background:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(99,102,241,.1) 0%,transparent 70%);animation:rotate 20s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.hero-content{z-index:1;animation:fadeInUp 1s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero-title{font-size:3.5rem;font-weight:700;color:var(--text-dark);margin-bottom:1rem}.hero-subtitle{font-size:1.5rem;color:var(--text-light);margin-bottom:2rem}.cta-button{display:inline-block;padding:1rem 2.5rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:var(--white);text-decoration:none;border-radius:50px;font-weight:600;transition:transform .3s ease,box-shadow .3s ease;box-shadow:var(--shadow-lg)}.cta-button:hover{transform:translateY(-2px);box-shadow:0 15px 25px -5px #6366f166}section{padding:5rem 0}.section-title{font-size:2.5rem;text-align:center;margin-bottom:3rem;color:var(--text-dark);position:relative}.section-title:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:4px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);border-radius:2px}.about{background:var(--bg-light)}.about-content{display:grid;gap:3rem}.about-text{text-align:center;max-width:800px;margin:0 auto}.about-text p{font-size:1.1rem;color:var(--text-light);margin-bottom:1rem;line-height:1.8}.about-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:3rem}.feature-card{background:var(--white);padding:2rem;border-radius:10px;text-align:center;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.3rem;margin-bottom:.5rem;color:var(--text-dark)}.feature-card p{color:var(--text-light)}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.service-card{background:var(--white);padding:2.5rem;border-radius:10px;text-align:center;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease;border-top:4px solid var(--primary-color)}.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.service-icon{font-size:3.5rem;margin-bottom:1rem}.service-card h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-dark)}.service-card p{color:var(--text-light);line-height:1.8}.contact{background:var(--bg-light)}.contact-content{display:grid;grid-template-columns:1fr;gap:2rem;max-width:720px;margin:0 auto}.contact-info{display:flex;flex-direction:column;gap:2rem}.info-item{display:flex;gap:1.5rem;align-items:flex-start}.info-icon{font-size:2rem;flex-shrink:0}.info-text h3{font-size:1.2rem;margin-bottom:.5rem;color:var(--text-dark)}.info-text p{color:var(--text-light)}.contact-form{background:var(--white);padding:2rem;border-radius:10px;box-shadow:var(--shadow)}.form-group{margin-bottom:1.5rem}.form-group input,.form-group textarea{width:100%;padding:1rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;font-family:inherit;transition:border-color .3s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color)}.submit-button{width:100%;padding:1rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:var(--white);border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .3s ease,box-shadow .3s ease}.submit-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.footer{background:var(--text-dark);color:var(--white);text-align:center;padding:2rem 0}@media(max-width:768px){.hamburger{display:flex}.nav-menu{position:fixed;left:-100%;top:60px;flex-direction:column;background:var(--white);width:100%;text-align:center;transition:left .3s ease;box-shadow:var(--shadow);padding:2rem 0}.nav-menu.active{left:0}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.2rem}.section-title{font-size:2rem}.contact-content,.about-features,.services-grid{grid-template-columns:1fr}}@media(max-width:480px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.cta-button{padding:.8rem 2rem;font-size:.9rem}}