```css
*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:#f8f9fa;color:#333;transition:background .3s,color .3s}body.dark{background:#1a1a2e;color:#e0e0e0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:linear-gradient(135deg,#1a1a2e,#16213e);color:#fff;padding:15px 0;position:sticky;top:0;z-index:1000;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.header .container{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:700}.logo svg{width:40px;height:40px}.nav{display:flex;gap:25px;list-style:none}.nav a{font-size:16px;padding:5px 0;transition:color .3s}.nav a:hover,.nav a.active{color:#f39c12}.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer}.hero{background:linear-gradient(135deg,#0f3460,#1a1a2e);color:#fff;padding:100px 0;text-align:center;position:relative;overflow:hidden}.hero .slider{position:relative;min-height:300px}.hero .slide{opacity:0;transition:opacity .5s;position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.hero .slide.active{opacity:1;position:relative}.hero h1{font-size:48px;margin-bottom:20px;background:linear-gradient(45deg,#f39c12,#e74c3c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:20px;max-width:700px;margin:0 auto 30px;line-height:1.6}.hero .btn{display:inline-block;padding:12px 30px;background:linear-gradient(135deg,#f39c12,#e67e22);color:#fff;border-radius:30px;font-size:18px;transition:transform .3s,box-shadow .3s}.hero .btn:hover{transform:scale(1.05);box-shadow:0 10px 20px rgba(243,156,18,.4)}.section{padding:80px 0}.section-title{text-align:center;font-size:36px;margin-bottom:50px;position:relative;display:inline-block;left:50%;transform:translateX(-50%)}.section-title::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#f39c12,#e74c3c);margin:15px auto 0;border-radius:2px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}.card{background:#fff;border-radius:15px;padding:30px;box-shadow:0 5px 15px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}.dark .card{background:#16213e;box-shadow:0 5px 15px rgba(0,0,0,.3)}.card:hover{transform:translateY(-8px);box-shadow:0 15px 30px rgba(0,0,0,.12)}.card h3{font-size:22px;margin-bottom:15px}.card p{line-height:1.7;color:#666}.dark .card p{color:#b0b0b0}.stat-grid{display:flex;justify-content:center;gap:50px;flex-wrap:wrap}.stat-item{text-align:center;padding:20px}.stat-number{font-size:48px;font-weight:700;background:linear-gradient(135deg,#f39c12,#e74c3c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:18px;margin-top:10px;color:#888}.testimonial-card{background:linear-gradient(135deg,#fff,#f8f9fa);border-radius:15px;padding:30px;box-shadow:0 5px 15px rgba(0,0,0,.08);position:relative}.dark .testimonial-card{background:linear-gradient(135deg,#16213e,#1a1a2e)}.testimonial-card::before{content:'"';font-size:60px;color:#f39c12;position:absolute;top:10px;left:20px;opacity:.3}.testimonial-card p{font-style:italic;line-height:1.7;margin-bottom:15px}.testimonial-card .author{font-weight:700;color:#f39c12}.faq-item{border-bottom:1px solid #eee;padding:15px 0;cursor:pointer}.dark .faq-item{border-color:#333}.faq-question{display:flex;justify-content:space-between;align-items:center;font-size:18px;font-weight:600;padding:10px 0}.faq-question .icon{transition:transform .3s;font-size:20px}.faq-item.active .faq-question .icon{transform:rotate(45deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 15px;color:#666;line-height:1.7}.dark .faq-answer{color:#b0b0b0}.faq-item.active .faq-answer{max-height:300px;padding:10px 15px 20px}.contact-info{display:flex;flex-wrap:wrap;gap:30px;justify-content:center;padding:40px 0}.contact-item{text-align:center;padding:20px;min-width:200px}.contact-item h4{font-size:18px;margin-bottom:10px;color:#f39c12}.contact-item p{font-size:16px;color:#666}.dark .contact-item p{color:#b0b0b0}.footer{background:#1a1a2e;color:#ccc;padding:60px 0 20px}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}.footer h4{color:#fff;margin-bottom:20px;font-size:18px}.footer ul{list-style:none}.footer li{margin-bottom:10px}.footer a{color:#aaa;transition:color .3s}.footer a:hover{color:#f39c12}.footer-bottom{text-align:center;border-top:1px solid #333;padding-top:20px;font-size:14px;color:#888}.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background:linear-gradient(135deg,#f39c12,#e67e22);color:#fff;border:none;border-radius:50%;font-size:24px;cursor:pointer;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .3s;z-index:999;box-shadow:0 5px 15px rgba(243,156,18,.3)}.back-to-top.show{opacity:1;visibility:visible}.back-to-top:hover{transform:scale(1.1)}.dark-mode-toggle{position:fixed;bottom:90px;right:30px;width:50px;height:50px;background:#16213e;color:#fff;border:none;border-radius:50%;font-size:20px;cursor:pointer;z-index:999;box-shadow:0 5px 15px rgba(0,0,0,.2);transition:transform .3s}.dark .dark-mode-toggle{background:#f39c12;color:#1a1a2e}.dark-mode-toggle:hover{transform:scale(1.1)}.search-bar{display:flex;max-width:500px;margin:0 auto 40px;background:#fff;border-radius:30px;box-shadow:0 5px 15px rgba(0,0,0,.08);overflow:hidden}.dark .search-bar{background:#16213e}.search-bar input{flex:1;padding:15px 20px;border:none;outline:none;font-size:16px;background:transparent;color:#333}.dark .search-bar input{color:#e0e0e0}.search-bar button{padding:15px 25px;background:linear-gradient(135deg,#f39c12,#e67e22);color:#fff;border:none;cursor:pointer;font-size:16px;transition:background .3s}.search-bar button:hover{background:#e67e22}.breadcrumb{padding:20px 0;font-size:14px;color:#888}.breadcrumb a{color:#f39c12}.breadcrumb span{margin:0 5px}.news-list{list-style:none}.news-list li{padding:15px 0;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.dark .news-list li{border-color:#333}.news-list .date{color:#888;font-size:14px}.pagination{display:flex;justify-content:center;gap:10px;margin-top:40px}.pagination a{padding:8px 16px;background:#fff;border-radius:5px;box-shadow:0 2px 5px rgba(0,0,0,.05);transition:background .3s,color .3s}.dark .pagination a{background:#16213e}.pagination a:hover,.pagination a.active{background:#f39c12;color:#fff}.related-articles{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:40px}.related-articles .card{padding:20px}.related-articles .card h4{font-size:18px;margin-bottom:10px}.related-articles .card p{font-size:14px;color:#888}.prev-next{display:flex;justify-content:space-between;margin-top:40px}.prev-next a{padding:10px 20px;background:#fff;border-radius:5px;box-shadow:0 2px 5px rgba(0,0,0,.05);transition:background .3s}.dark .prev-next a{background:#16213e}.prev-next a:hover{background:#f39c12;color:#fff}.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:30px;padding:40px 0}.sitemap-grid h4{color:#f39c12;margin-bottom:15px}.sitemap-grid ul{list-style:none}.sitemap-grid li{margin-bottom:8px}.sitemap-grid a{color:#666;transition:color .3s}.dark .sitemap-grid a{color:#b0b0b0}.sitemap-grid a:hover{color:#f39c12}@media(max-width:768px){.nav{display:none;flex-direction:column;position:absolute;top:70px;left:0;right:0;background:#1a1a2e;padding:20px;gap:15px}.nav.open{display:flex}.menu-toggle{display:block}.hero h1{font-size:32px}.hero p{font-size:16px}.section-title{font-size:28px}.stat-grid{gap:30px}.stat-number{font-size:36px}.footer-grid{grid-template-columns:1fr 1fr}.contact-info{flex-direction:column;align-items:center}.sitemap-grid{grid-template-columns:1fr 1fr}}@media(max-width:480px){.footer-grid{grid-template-columns:1fr}.sitemap-grid{grid-template-columns:1fr}.hero{padding:60px 0}.hero h1{font-size:28px}}
```