```css
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,'Noto Sans SC',sans-serif;background:#f8f9fa;color:#222;line-height:1.7;transition:background .3s,color .3s}
.dark-mode{background:#121212;color:#e0e0e0}
a{color:#1a73e8;text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.navbar{background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(224,224,224,0.5);position:sticky;top:0;z-index:1000;transition:background .3s,box-shadow .3s;box-shadow:0 2px 8px rgba(0,0,0,0.05)}
.dark-mode .navbar{background:rgba(30,30,30,0.85);border-color:rgba(51,51,51,0.5);box-shadow:0 2px 8px rgba(0,0,0,0.3)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:1.4rem;font-weight:700;color:#1a1a2e;display:flex;align-items:center;gap:8px;transition:color .3s}
.dark-mode .logo{color:#e0e0e0}
.logo svg{width:32px;height:32px}
.nav-links{display:flex;gap:24px;list-style:none;font-size:0.95rem}
.nav-links a{color:#333;padding:4px 0;border-bottom:2px solid transparent;transition:border-color .2s,color .2s}
.dark-mode .nav-links a{color:#ccc}
.nav-links a:hover{border-color:#e94560;color:#e94560;text-decoration:none}
.menu-toggle{display:none;background:none;border:none;font-size:1.8rem;cursor:pointer;color:#333;transition:color .3s}
.dark-mode .menu-toggle{color:#e0e0e0}
.search-box{display:flex;align-items:center;gap:8px}
.search-box input{padding:6px 12px;border:1px solid #ccc;border-radius:20px;font-size:0.9rem;outline:none;width:180px;transition:border-color .2s,box-shadow .2s}
.search-box input:focus{border-color:#e94560;box-shadow:0 0 0 3px rgba(233,69,96,0.15)}
.dark-mode .search-box input{background:#2a2a2a;border-color:#444;color:#e0e0e0}
.search-box button{background:linear-gradient(135deg,#e94560,#ff6b6b);color:#fff;border:none;border-radius:20px;padding:6px 16px;cursor:pointer;font-size:0.9rem;transition:transform .2s,box-shadow .2s}
.search-box button:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(233,69,96,0.3)}
.dark-toggle{background:rgba(255,255,255,0.2);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.3);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;transition:background .2s,transform .2s}
.dark-toggle:hover{background:rgba(255,255,255,0.4);transform:scale(1.1)}
.dark-mode .dark-toggle{background:rgba(0,0,0,0.3);border-color:rgba(255,255,255,0.2);color:#e0e0e0}
.dark-mode .dark-toggle:hover{background:rgba(0,0,0,0.5)}
.mobile-nav{display:none;position:fixed;top:60px;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 8px 32px rgba(0,0,0,0.12);z-index:999;padding:16px 20px;max-height:80vh;overflow-y:auto}
.dark-mode .mobile-nav{background:rgba(30,30,30,0.95)}
.mobile-nav.active{display:block}
.mobile-nav a{display:block;padding:10px 0;border-bottom:1px solid rgba(224,224,224,0.5);color:#333;transition:color .2s}
.dark-mode .mobile-nav a{color:#ccc;border-color:rgba(51,51,51,0.5)}
.mobile-nav a:hover{color:#e94560}
.breadcrumb{background:transparent;padding:12px 0;font-size:0.85rem;color:#666}
.dark-mode .breadcrumb{color:#999}
.breadcrumb a{color:#1a73e8;transition:color .2s}
.breadcrumb a:hover{color:#e94560}
.breadcrumb span{margin:0 6px}
.hero{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);color:#fff;padding:80px 0 60px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(233,69,96,0.1) 0%,transparent 70%);animation:heroGlow 8s ease-in-out infinite alternate}
@keyframes heroGlow{0%{transform:translate(0,0)}100%{transform:translate(10%,10%)}}
.hero h1{font-size:2.6rem;font-weight:800;margin-bottom:20px;line-height:1.2;position:relative;z-index:1}
.hero p{font-size:1.2rem;max-width:800px;margin:0 auto 30px;opacity:0.9;position:relative;z-index:1}
.hero .cta{display:inline-block;background:linear-gradient(135deg,#e94560,#ff6b6b);color:#fff;padding:14px 40px;border-radius:30px;font-size:1.1rem;font-weight:600;transition:transform .3s,box-shadow .3s;margin-top:10px;position:relative;z-index:1;box-shadow:0 4px 15px rgba(233,69,96,0.3)}
.hero .cta:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(233,69,96,0.4);text-decoration:none}
.carousel{position:relative;overflow:hidden;height:400px;margin:40px auto;max-width:1000px;border-radius:16px;box-shadow:0 8px 30px rgba(0,0,0,0.2)}
.carousel-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity .8s ease;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:40px;background-size:cover;background-position:center}
.carousel-slide.active{opacity:1}
.carousel-slide h2{font-size:2rem;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,0.5);margin-bottom:12px}
.carousel-slide p{color:#fff;text-shadow:0 1px 6px rgba(0,0,0,0.4);max-width:600px;font-size:1.1rem}
.carousel-indicators{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.carousel-indicators button{width:14px;height:14px;border-radius:50%;border:2px solid #fff;background:transparent;cursor:pointer;transition:background .3s,transform .3s}
.carousel-indicators button.active{background:#fff;transform:scale(1.2)}
section{padding:60px 0}
.section-title{font-size:2rem;font-weight:700;margin-bottom:40px;text-align:center;position:relative}
.section-title:after{content:'';display:block;width:60px;height:4px;background:linear-gradient(90deg,#1a73e8,#e94560);margin:12px auto 0;border-radius:2px}
.dark-mode .section-title:after{background:linear-gradient(90deg,#4a9eff,#ff6b6b)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px}
.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:24px}
.card{background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,0.06);transition:transform .3s,box-shadow .3s;border:1px solid rgba(255,255,255,0.2)}
.dark-mode .card{background:rgba(30,30,30,0.85);box-shadow:0 2px 12px rgba(0,0,0,0.2);border-color:rgba(255,255,255,0.05)}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,0.12)}
.card h3{font-size:1.2rem;margin-bottom:12px;color:#1a1a2e;transition:color .3s}
.dark-mode .card h3{color:#e0e0e0}
.card p{color:#555;font-size:0.95rem;transition:color .3s}
.dark-mode .card p{color:#aaa}
.card svg{width:48px;height:48px;margin-bottom:12px;fill:url(#grad);transition:transform .3s}
.card:hover svg{transform:scale(1.1)}
.brand-section{background:#fff;transition:background .3s}
.dark-mode .brand-section{background:#1a1a1a}
.brand-content{display:flex;gap:40px;align-items:center;flex-wrap:wrap}
.brand-text{flex:2;min-width:280px}
.brand-text h2{font-size:1.8rem;margin-bottom:16px;background:linear-gradient(135deg,#1a73e8,#e94560);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.brand-text p{margin-bottom:12px;color:#444;transition:color .3s}
.dark-mode .brand-text p{color:#bbb}
.brand-info{flex:1;min-width:200px;background:rgba(240,244,255,0.8);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:20px;border-radius:16px;border:1px solid rgba(255,255,255,0.3)}
.dark-mode .brand-info{background:rgba(42,42,62,0.8);border-color:rgba(255,255,255,0.05)}
.brand-info p{margin-bottom:8px;font-size:0.95rem}
.brand-info strong{display:inline-block;width:80px}
.article-list{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.article-item{padding:20px;background:rgba(255,255,255,0.85);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:16px;box-shadow:0 1px 6px rgba(0,0,0,0.05);transition:transform .3s,box-shadow .3s;border:1px solid rgba(255,255,255,0.2)}
.dark-mode .article-item{background:rgba(30,30,30,0.85);border-color:rgba(255,255,255,0.05)}
.article-item:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,0.1)}
.article-item h4{font-size:1.1rem;margin-bottom:6px;transition:color .2s}
.article-item:hover h4{color:#e94560}
.article-item .date{font-size:0.8rem;color:#999;margin-bottom:8px;display:block}
.article-item p{color:#555;font-size:0.9rem;margin-bottom:10px;transition:color .3s}
.dark-mode .article-item p{color:#aaa}
.article-item a{color:#1a73e8;font-weight:500;transition:color .2s}
.article-item a:hover{color:#e94560}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(224,224,224,0.5);padding:16px 0;transition:border-color .3s}
.dark-mode .faq-item{border-color:rgba(51,51,51,0.5)}
.faq-question{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;font-size:1.05rem;padding:4px 0;transition:color .2s}
.faq-question:hover{color:#e94560}
.faq-question .icon{font-size:1.4rem;transition:transform .3s}
.faq-item.open .faq-question .icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s;padding:0 0 0 16px;color:#555;font-size:0.95rem}
.dark-mode .faq-answer{color:#bbb}
.faq-item.open .faq-answer{max-height:600px;padding:12px 0 12px 16px}
.howto{background:rgba(240,244,255,0.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:20px;padding:40px;border:1px solid rgba(255,255,255,0.3)}
.dark-mode .howto{background:rgba(30,30,46,0.8);border-color:rgba(255,255,255,0.05)}
.howto h2{text-align:center;margin-bottom:30px;background:linear-gradient(135deg,#1a73e8,#e94560);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start;transition:transform .2s}
.howto-step:hover{transform:translateX(8px)}
.howto-step .num{background:linear-gradient(135deg,#1a73e8,#e94560);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;box-shadow:0 4px 10px rgba(26,115,232,0.3)}
.howto-step h4{margin-bottom:4px}
.howto-step p{color:#555;font-size:0.95rem;transition:color .3s}
.dark-mode .howto-step p{color:#bbb}
.testimonial{background:rgba(255,255,255,0.85);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:16px;padding:24px;position:relative;font-style:italic;border:1px solid rgba(255,255,255,0.2);transition:transform .3s,box-shadow .3s}
.dark-mode .testimonial{background:rgba(30,30,30,0.85);border-color:rgba(255,255,255,0.05)}
.testimonial:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,0.1)}
.testimonial::before{content:'"';font-size:3rem;background:linear-gradient(135deg,#1a73e8,#e94560);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:absolute;top:-10px;left:16px;opacity:0.3}
.testimonial p{margin-bottom:8px}
.testimonial .author{font-weight:600;font-style:normal;color:#1a1a2e;transition:color .3s}
.dark-mode .testimonial .author{color:#e0e0e0}
.contact-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;padding:30px;box-shadow:0 2px 12px rgba(0,0,0,0.05);border:1px solid rgba(255,255,255,0.2)}
.dark-mode .contact-info{background:rgba(30,30,30,0.85);border-color:rgba(255,255,255,0.05)}
.contact-info div{text-align:center;transition:transform .3s}
.contact-info div:hover{transform:translateY(-4px)}
.contact-info svg{width:36px;height:36px;fill:url(#grad);margin-bottom:8px}
.contact-info h4{margin-bottom:4px}
.contact-info p{color:#555;font-size:0.95rem;transition:color .3s}
.dark-mode .contact-info p{color:#bbb}
.friend-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:20px 0}
.friend-links a{background:rgba(240,244,255,0.8);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);padding:6px 16px;border-radius:20px;font-size:0.9rem;color:#333;transition:all .3s;border:1px solid rgba(255,255,255,0.2)}
.dark-mode .friend-links a{background:rgba(42,42,62,0.8);color:#ccc;border-color:rgba(255,255,255,0.05)}
.friend-links a:hover{background:linear-gradient(135deg,#1a73e8,#e94560);color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px rgba(26,115,232,0.3);text-decoration:none}
footer{background:#1a1a2e;color:#ccc;padding:40px 0 20px;margin-top:40px}
footer .container{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:30px}
footer h4{color:#fff;margin-bottom:12px;font-size:1.1rem}
footer a{display:block;color:#aaa;margin-bottom:6px;font-size:0.9rem;transition:color .3s,transform .2s}
footer a:hover{color:#e94560;transform:translateX(4px);text-decoration:none}
footer .copyright{grid-column:1/-1;text-align:center;padding-top:20px;border-top:1px solid #333;margin-top:20px;font-size:0.85rem}
.back-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:linear-gradient(135deg,#1a73e8,#e94560);color:#fff;border:none;border-radius:50%;font-size:1.5rem;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.2);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .3s;z-index:999}
.back-top.visible{opacity:1;visibility:visible}
.back-top:hover{transform:scale(1.15) translateY(-4px);box-shadow:0 8px 20px rgba(233,69,96,0.4)}
.stat-number{font-size:2.4rem;font-weight:800;background:linear-gradient(135deg,#1a73e8,#e94560);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.hero .cta{animation:float 3s ease-in-out infinite}
@media(max-width:768px){
    .nav-links,.search-box{display:none}
    .menu-toggle{display:block}
    .hero h1{font-size:1.8rem}
    .hero p{font-size:1rem}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    .article-list{grid-template-columns:1fr}
    .carousel{height:280px}
    .carousel-slide h2{font-size:1.4rem}
    .brand-content{flex-direction:column}
    .howto-step{flex-direction:column}
    .contact-info{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
    .container{padding:0 12px}
    .hero{padding:50px 0 40px}
    section{padding:40px 0}
    .section-title{font-size:1.5rem}
    .contact-info{grid-template-columns:1fr}
}
.lazy-placeholder{background:rgba(224,224,224,0.5);border-radius:8px;min-height:120px;display:flex;align-items:center;justify-content:center;color:#999;font-size:0.9rem}
.dark-mode .lazy-placeholder{background:rgba(42,42,42,0.5);color:#666}
```