:root{--brand-primary:#1a3a5c;--brand-secondary:#2a6a9e;--brand-accent:#e8a838;--brand-light:#f0f7ff;--brand-dark:#0f1f30;--text-primary:#1a1a2e;--text-secondary:#4a4a6a;--text-light:#ffffff;--bg-primary:#ffffff;--bg-secondary:#f5f9ff;--bg-dark:#0f1f30;--shadow-sm:0 2px 8px rgba(0,0,0,0.06);--shadow-md:0 8px 30px rgba(0,0,0,0.08);--shadow-lg:0 20px 60px rgba(0,0,0,0.12);--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);--font-sans:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-primary);line-height:1.7;overflow-x:hidden;transition:background 0.4s,color 0.4s}.dark-mode{--bg-primary:#0f1f30;--bg-secondary:#162a40;--text-primary:#e8ecf1;--text-secondary:#a0b4cc;--shadow-sm:0 2px 8px rgba(0,0,0,0.3);--shadow-md:0 8px 30px rgba(0,0,0,0.4);--shadow-lg:0 20px 60px rgba(0,0,0,0.5)}a{color:var(--brand-secondary);text-decoration:none;transition:var(--transition)}a:hover{color:var(--brand-accent)}img,svg{max-width:100%;height:auto;display:block}.container{max-width:1280px;margin:0 auto;padding:0 24px}@media(max-width:768px){.container{padding:0 16px}}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:0.95rem;cursor:pointer;transition:var(--transition);border:none;background:var(--brand-primary);color:var(--text-light)}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:var(--brand-secondary)}.btn-outline{background:transparent;border:2px solid var(--brand-primary);color:var(--brand-primary)}.btn-outline:hover{background:var(--brand-primary);color:var(--text-light)}.section{padding:80px 0}@media(max-width:768px){.section{padding:48px 0}}.section-title{font-size:2.2rem;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:768px){.section-title{font-size:1.6rem}}.section-sub{font-size:1.1rem;color:var(--text-secondary);max-width:640px;margin:0 auto 48px;text-align:center}.card{background:var(--bg-primary);border-radius:var(--radius-md);padding:32px;box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid rgba(0,0,0,0.04)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.dark-mode .card{border-color:rgba(255,255,255,0.06)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}@media(max-width:768px){.grid-2{grid-template-columns:1fr}}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}@media(max-width:768px){.grid-3{grid-template-columns:1fr}}@media(min-width:769px)and(max-width:1024px){.grid-3{grid-template-columns:1fr 1fr}}.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:24px}@media(max-width:768px){.grid-4{grid-template-columns:1fr 1fr}}@media(max-width:480px){.grid-4{grid-template-columns:1fr}}.flex-center{display:flex;align-items:center;justify-content:center}.text-center{text-align:center}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}.mt-16{margin-top:16px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}.fade-in{opacity:0;transform:translateY(20px);transition:opacity 0.6s ease,transform 0.6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,0.04);transition:var(--transition)}.dark-mode header{background:rgba(15,31,48,0.9);border-color:rgba(255,255,255,0.06)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}.logo{font-size:1.6rem;font-weight:900;color:var(--brand-primary);display:flex;align-items:center;gap:8px}.logo svg{width:36px;height:36px}.nav{display:flex;align-items:center;gap:8px}@media(max-width:1024px){.nav{display:none}}.nav a{padding:8px 16px;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:500;color:var(--text-primary);transition:var(--transition)}.nav a:hover,.nav a.active{background:var(--brand-light);color:var(--brand-primary)}.dark-mode .nav a:hover,.dark-mode .nav a.active{background:rgba(42,106,158,0.2)}.header-actions{display:flex;align-items:center;gap:12px}.theme-toggle{background:none;border:none;cursor:pointer;padding:8px;border-radius:50%;color:var(--text-primary);transition:var(--transition);font-size:1.2rem;display:flex;align-items:center}.theme-toggle:hover{background:var(--bg-secondary)}.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--text-primary);font-size:1.5rem}@media(max-width:1024px){.menu-toggle{display:flex}}.mobile-menu{position:fixed;top:72px;left:0;right:0;bottom:0;background:var(--bg-primary);z-index:999;padding:24px;display:none;flex-direction:column;gap:8px;overflow-y:auto;backdrop-filter:blur(20px)}.mobile-menu.open{display:flex}.mobile-menu a{padding:16px;border-radius:var(--radius-sm);font-size:1.1rem;font-weight:500;color:var(--text-primary);border-bottom:1px solid rgba(0,0,0,0.04)}.mobile-menu a:hover{background:var(--bg-secondary)}.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--brand-light) 0%,#ffffff 50%,var(--brand-light) 100%)}.dark-mode .hero{background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-secondary) 50%,var(--bg-dark) 100%)}.hero-bg{position:absolute;inset:0;overflow:hidden;pointer-events:none}.hero-bg svg{position:absolute;width:100%;height:100%;opacity:0.06}.hero-content{position:relative;z-index:2;max-width:720px}.hero h1{font-size:3.5rem;font-weight:900;line-height:1.2;margin-bottom:24px;background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:768px){.hero h1{font-size:2.2rem}}.hero p{font-size:1.2rem;color:var(--text-secondary);margin-bottom:32px;max-width:560px}@media(max-width:768px){.hero p{font-size:1rem}}.hero-actions{display:flex;gap:16px;flex-wrap:wrap}.hero-visual{position:relative;z-index:2;flex:1;display:flex;justify-content:center;align-items:center}.hero-visual svg{width:100%;max-width:480px;height:auto;filter:drop-shadow(0 20px 40px rgba(0,0,0,0.08))}.hero .grid-2{align-items:center}.banner-carousel{position:relative;overflow:hidden;border-radius:var(--radius-lg);margin-top:32px}.banner-slide{display:none;animation:fadeSlide 0.6s ease}.banner-slide.active{display:block}@keyframes fadeSlide{from{opacity:0;transform:scale(0.98)}to{opacity:1;transform:scale(1)}}.banner-dots{display:flex;justify-content:center;gap:8px;margin-top:16px}.banner-dot{width:12px;height:12px;border-radius:50%;background:var(--text-secondary);opacity:0.4;cursor:pointer;transition:var(--transition);border:none}.banner-dot.active{opacity:1;background:var(--brand-primary);transform:scale(1.2)}.breadcrumb{padding:16px 0;font-size:0.85rem;color:var(--text-secondary);display:flex;gap:8px;flex-wrap:wrap}.breadcrumb a{color:var(--text-secondary)}.breadcrumb a:hover{color:var(--brand-primary)}.breadcrumb span{color:var(--text-primary)}.stat-item{text-align:center;padding:24px}.stat-number{font-size:2.8rem;font-weight:900;color:var(--brand-primary);line-height:1.2}.stat-label{font-size:0.95rem;color:var(--text-secondary);margin-top:8px}.dark-mode .stat-number{color:var(--brand-accent)}.faq-item{border-bottom:1px solid rgba(0,0,0,0.06);padding:16px 0}.dark-mode .faq-item{border-color:rgba(255,255,255,0.06)}.faq-question{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;font-size:1.05rem;padding:8px 0;background:none;border:none;width:100%;text-align:left;color:var(--text-primary);transition:var(--transition)}.faq-question:hover{color:var(--brand-primary)}.faq-question .icon{transition:transform 0.3s;font-size:1.2rem}.faq-item.open .faq-question .icon{transform:rotate(180deg)}.faq-answer{padding:0 0 8px 0;color:var(--text-secondary);line-height:1.8;display:none}.faq-item.open .faq-answer{display:block}.howto-step{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(0,0,0,0.04)}.howto-step:last-child{border:none}.howto-step-num{width:40px;height:40px;border-radius:50%;background:var(--brand-primary);color:var(--text-light);display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}.howto-step-content h4{font-weight:700;margin-bottom:4px}.howto-step-content p{color:var(--text-secondary);font-size:0.95rem}.partner-logos{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center}.partner-logos svg{width:120px;height:60px;opacity:0.5;transition:var(--transition)}.partner-logos svg:hover{opacity:0.9}.testimonial-card{background:var(--bg-secondary);border-radius:var(--radius-md);padding:32px;position:relative}.testimonial-card::before{content:'"';font-size:4rem;position:absolute;top:8px;left:16px;color:var(--brand-primary);opacity:0.15;font-family:Georgia,serif}.testimonial-text{font-style:italic;margin-bottom:16px;line-height:1.8;color:var(--text-primary)}.testimonial-author{font-weight:700;color:var(--brand-primary)}.testimonial-role{font-size:0.85rem;color:var(--text-secondary)}.footer{background:var(--bg-dark);color:var(--text-light);padding:64px 0 32px}.footer a{color:rgba(255,255,255,0.7)}.footer a:hover{color:var(--brand-accent)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:24px}}@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}.footer-brand .logo{color:var(--text-light);margin-bottom:16px}.footer-brand p{color:rgba(255,255,255,0.6);font-size:0.9rem;max-width:320px}.footer-links h4{font-size:1rem;font-weight:700;margin-bottom:16px;color:var(--text-light)}.footer-links a{display:block;padding:4px 0;font-size:0.9rem}.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);margin-top:48px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:0.85rem;color:rgba(255,255,255,0.5)}.scroll-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:var(--brand-primary);color:var(--text-light);border:none;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:var(--transition);z-index:999;font-size:1.2rem}.scroll-top.visible{display:flex}.scroll-top:hover{transform:translateY(-4px);background:var(--brand-secondary)}.search-box{display:flex;gap:8px;max-width:480px;margin:0 auto}.search-box input{flex:1;padding:12px 20px;border:2px solid rgba(0,0,0,0.08);border-radius:var(--radius-sm);font-size:1rem;background:var(--bg-primary);color:var(--text-primary);transition:var(--transition)}.search-box input:focus{outline:none;border-color:var(--brand-secondary)}.search-box button{padding:12px 24px;background:var(--brand-primary);color:var(--text-light);border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;transition:var(--transition)}.search-box button:hover{background:var(--brand-secondary)}.sitemap-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}.sitemap-links a{padding:8px 12px;background:var(--bg-secondary);border-radius:var(--radius-sm);font-size:0.9rem;transition:var(--transition)}.sitemap-links a:hover{background:var(--brand-light);color:var(--brand-primary)}.news-card{padding:24px;border-radius:var(--radius-md);background:var(--bg-secondary);transition:var(--transition)}.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}.news-card .date{font-size:0.8rem;color:var(--text-secondary);margin-bottom:8px}.news-card h3{font-size:1.1rem;margin-bottom:8px}.news-card p{font-size:0.9rem;color:var(--text-secondary)}.case-card{border-radius:var(--radius-md);overflow:hidden;background:var(--bg-secondary);transition:var(--transition)}.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.case-card-body{padding:24px}.case-card-body h3{font-size:1.1rem;margin-bottom:8px}.case-card-body p{font-size:0.9rem;color:var(--text-secondary)}.team-card{text-align:center;padding:32px 16px}.team-card svg{width:120px;height:120px;border-radius:50%;margin:0 auto 16px;background:var(--bg-secondary)}.team-card h3{font-weight:700;margin-bottom:4px}.team-card .role{color:var(--text-secondary);font-size:0.9rem}.contact-info{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:768px){.contact-info{grid-template-columns:1fr}}.contact-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg-secondary);border-radius:var(--radius-sm)}.contact-item svg{width:24px;height:24px;flex-shrink:0;color:var(--brand-primary)}.related-articles{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:768px){.related-articles{grid-template-columns:1fr}}.related-article{padding:16px;background:var(--bg-secondary);border-radius:var(--radius-sm);transition:var(--transition)}.related-article:hover{background:var(--brand-light)}.related-article h4{font-size:0.95rem;font-weight:600}.related-article .date{font-size:0.8rem;color:var(--text-secondary)}.glass{background:rgba(255,255,255,0.6);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,0.3)}.dark-mode .glass{background:rgba(15,31,48,0.6);border-color:rgba(255,255,255,0.06)}.rounded-full{border-radius:9999px}.shadow-hover{transition:var(--transition)}.shadow-hover:hover{box-shadow:var(--shadow-md)}.bg-gradient-brand{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary))}.text-gradient{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}