body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.site-wrapper{min-height:100vh;display:flex;flex-direction:column}.site-header{background:var(--primary);color:#fff;position:sticky;top:0;z-index:100}.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}.logo{font-size:24px;font-weight:700;color:#fff;text-decoration:none;letter-spacing:2px}.main-nav{display:flex;gap:24px}.main-nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:15px;padding:4px 0;border-bottom:2px solid transparent;transition:all .2s}.main-nav a:hover{color:#fff;border-bottom-color:#fff}main{flex:1}.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.7);text-align:center;padding:24px;font-size:14px}.hero{background:linear-gradient(135deg,var(--primary) 0,#764ba2 100%);color:#fff;text-align:center;padding:80px 20px}.hero h1{font-size:42px;margin:0 0 16px}.hero p{font-size:18px;opacity:.9;max-width:600px;margin:0 auto 32px}.hero .btn{display:inline-block;padding:12px 36px;background:#fff;color:var(--primary);text-decoration:none;border-radius:6px;font-weight:600}.section{max-width:1200px;margin:0 auto;padding:60px 20px}.section h2{text-align:center;font-size:28px;margin-bottom:40px}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.feature-card{padding:32px;border:1px solid #eee;border-radius:8px;text-align:center}.feature-card h3{margin:0 0 8px}.feature-card p{color:#666;line-height:1.6}.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.news-card{padding:24px;border:1px solid #eee;border-radius:8px;transition:box-shadow .2s}.news-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.1)}.news-card h3{margin:0 0 8px;font-size:18px}.news-card h3 a{color:var(--text);text-decoration:none}.news-card h3 a:hover{color:var(--primary)}.news-card .meta{color:#999;font-size:13px;margin-bottom:8px}.news-card p{color:#666;line-height:1.6;font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.content-detail{max-width:800px;margin:40px auto;padding:0 20px}.content-detail h1{font-size:32px;margin-bottom:12px}.content-detail .meta{color:#999;margin-bottom:24px}.content-detail .body{line-height:1.8;font-size:16px}.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}.product-card{padding:24px;border:1px solid #eee;border-radius:8px;text-align:center}.product-card h3{margin:0 0 8px}.product-card .price{color:#ff4d4f;font-size:20px;font-weight:700}.product-card .specs{color:#666;font-size:13px;margin:8px 0}.product-card .tag{display:inline-block;padding:2px 8px;background:#f0f0f0;border-radius:4px;font-size:12px;color:#666}.contact-form{max-width:600px;margin:0 auto}.contact-form .form-group{margin-bottom:16px}.contact-form label{display:block;margin-bottom:4px;color:#666;font-size:14px}.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;box-sizing:border-box}.contact-form textarea{height:120px;resize:vertical}.contact-form button{padding:12px 36px;background:var(--primary);color:#fff;border:none;border-radius:6px;font-size:16px;cursor:pointer}.contact-form button:hover{opacity:.9}.contact-form .success{padding:16px;background:#f0fff0;border:1px solid #52c41a;border-radius:6px;color:#52c41a;text-align:center}.page-header{background:var(--primary);color:#fff;padding:40px 20px;text-align:center}.page-header h1{margin:0;font-size:32px}.company-about{max-width:800px;margin:40px auto;padding:0 20px;line-height:1.8}.company-about h2{margin-top:32px}.timeline-item{display:flex;gap:16px;margin-bottom:16px}.timeline-item .year{font-weight:700;color:var(--primary);min-width:60px}