:root{--color-primary: #2c3e50;--color-secondary: #34495e;--color-accent: #3498db;--color-text: #2c3e50;--color-text-light: #7f8c8d;--color-bg: #f8f9fa;--color-paper: #fdfcf8;--color-border: #e0ddd5;--font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-serif: "Georgia", "Songti SC", serif;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-primary);color:var(--color-text);background:var(--color-bg);line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 24px}.navbar{position:fixed;top:0;left:0;right:0;background:#fdfcf8f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);z-index:1000;transition:var(--transition)}.navbar .container{display:flex;justify-content:space-between;align-items:center;height:70px}.logo{display:flex;flex-direction:column;gap:2px}.logo-text{font-size:24px;font-weight:700;color:var(--color-primary);font-family:var(--font-serif);letter-spacing:2px}.logo-subtitle{font-size:10px;color:var(--color-text-light);letter-spacing:1px;text-transform:uppercase}.nav-menu{display:flex;list-style:none;gap:40px}.nav-menu a{text-decoration:none;color:var(--color-text);font-size:15px;font-weight:500;transition:var(--transition);position:relative}.nav-menu a:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--color-accent);transition:var(--transition)}.nav-menu a:hover{color:var(--color-accent)}.nav-menu a:hover:after{width:100%}.hero{min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,var(--color-paper) 0%,#f0ede5 100%);position:relative;overflow:hidden;padding-top:70px}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.02) 2px,rgba(0,0,0,.02) 3px);pointer-events:none}.hero .container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}.hero-content{animation:fadeInUp 1s ease-out}.hero-title{font-size:56px;font-weight:700;line-height:1.2;margin-bottom:24px;font-family:var(--font-serif)}.title-line{display:block;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:18px;color:var(--color-text-light);margin-bottom:40px;line-height:1.8}.hero-cta{display:flex;gap:16px}.btn{padding:14px 32px;border-radius:8px;text-decoration:none;font-weight:600;font-size:15px;transition:var(--transition);display:inline-block;border:2px solid transparent}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-secondary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn-secondary:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}.hero-visual{position:relative;height:500px}.tech-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(90deg,rgba(52,152,219,.1) 1px,transparent 1px),linear-gradient(0deg,rgba(52,152,219,.1) 1px,transparent 1px);background-size:40px 40px;animation:gridMove 20s linear infinite}.about{padding:120px 0;background:#fff}.section-title{font-size:42px;font-weight:700;text-align:center;margin-bottom:60px;font-family:var(--font-serif);color:var(--color-primary)}.about-content{display:grid;gap:60px}.about-text{max-width:800px;margin:0 auto;text-align:center}.about-text p{font-size:17px;line-height:1.8;color:var(--color-text-light);margin-bottom:20px}.about-features{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature-card{background:var(--color-paper);padding:40px 32px;border-radius:12px;text-align:center;border:1px solid var(--color-border);transition:var(--transition)}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}.feature-icon{font-size:48px;margin-bottom:20px}.feature-card h3{font-size:20px;margin-bottom:12px;color:var(--color-primary)}.feature-card p{color:var(--color-text-light);font-size:15px}.services{padding:120px 0;background:var(--color-paper);position:relative}.services:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:repeating-linear-gradient(45deg,transparent,transparent 10px,rgba(0,0,0,.01) 10px,rgba(0,0,0,.01) 11px);pointer-events:none}.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;position:relative;z-index:1}.service-card{background:#fff;padding:48px 40px;border-radius:12px;border:1px solid var(--color-border);transition:var(--transition)}.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--color-accent)}.service-card h3{font-size:22px;margin-bottom:16px;color:var(--color-primary)}.service-card p{color:var(--color-text-light);line-height:1.7}.contact{padding:120px 0;background:#fff}.contact-content{max-width:800px;margin:0 auto}.contact-info{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.info-item{text-align:center;padding:32px 24px;background:var(--color-paper);border-radius:12px;border:1px solid var(--color-border)}.info-item h3{font-size:18px;margin-bottom:12px;color:var(--color-primary)}.info-item p{color:var(--color-text-light);font-size:15px}.footer{background:var(--color-primary);color:#fff;padding:40px 0;text-align:center}.footer p{font-size:14px;opacity:.8}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes gridMove{0%{transform:translate(0)}to{transform:translate(40px,40px)}}@media (max-width: 768px){.hero .container{grid-template-columns:1fr}.hero-visual{display:none}.hero-title{font-size:40px}.about-features,.services-grid,.contact-info{grid-template-columns:1fr}.nav-menu{gap:20px}}