:root{--primary:#1a56a8;--primary-dark:#124080;--primary-light:#e8f0fe;--accent:#3b82f6;--accent-glow:rgba(59,130,246,.15);--text:#1a1a2e;--text-secondary:#555;--text-muted:#8892a0;--bg:#ffffff;--bg-light:#f8fafc;--bg-card:#ffffff;--border:#e2e8f0;--footer-bg:#0f1729;--footer-text:#94a3b8;--white:#ffffff;--shadow-sm:0 1px 3px rgba(0,0,0,.06);--shadow:0 4px 20px rgba(0,0,0,.08);--shadow-lg:0 12px 40px rgba(0,0,0,.1);--radius-sm:8px;--radius:12px;--radius-lg:20px;--transition:.3s cubic-bezier(.4,0,.2,1);--max-width:1200px;--nav-height:72px}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:system-ui,-apple-system,'PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;color:var(--text);background:var(--bg);line-height:1.75;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;height:auto;display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:100px 0}.section-label{display:inline-block;font-size:14px;font-weight:600;color:var(--primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}.section-title{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.3;color:var(--text);margin-bottom:16px}.section-desc{font-size:17px;color:var(--text-secondary);max-width:640px;line-height:1.8}.text-center{text-align:center}.text-center .section-desc{margin:0 auto}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-height);background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:var(--transition)}.navbar.scrolled{border-bottom-color:var(--border);box-shadow:var(--shadow-sm)}.navbar .container{display:flex;align-items:center;justify-content:space-between;height:100%}.nav-logo{display:flex;align-items:center;gap:10px}.nav-logo img{height:38px;width:auto}.nav-logo span{font-size:18px;font-weight:700;color:var(--primary-dark);white-space:nowrap}.nav-menu{display:flex;align-items:center;gap:4px}.nav-menu li a{display:block;padding:8px 18px;font-size:15px;font-weight:500;color:var(--text-secondary);border-radius:8px;transition:var(--transition)}.nav-menu li a.active,.nav-menu li a:hover{color:var(--primary);background:var(--primary-light)}.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:0 0;border:none;z-index:1001}.menu-toggle span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}.menu-toggle.active span:first-child{transform:rotate(45deg) translate(5px,5px)}.menu-toggle.active span:nth-child(2){opacity:0}.menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.hero{padding:160px 0 120px;background:linear-gradient(135deg,#f0f5ff 0,#e8f0fe 40%,#dbeafe 100%);position:relative;overflow:hidden}.hero::before{content:'';position:absolute;top:-100px;right:-100px;width:500px;height:500px;background:radial-gradient(circle,rgba(26,86,168,.08),transparent 70%);border-radius:50%}.hero::after{content:'';position:absolute;bottom:-80px;left:-60px;width:400px;height:400px;background:radial-gradient(circle,rgba(59,130,246,.06),transparent 70%);border-radius:50%}.hero .container{position:relative;z-index:1}.hero h1{font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.25;color:var(--text);margin-bottom:20px}.hero h1 span{color:var(--primary)}.hero p{font-size:clamp(16px,2vw,19px);color:var(--text-secondary);max-width:600px;line-height:1.8}.hero-buttons{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;font-size:16px;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;border:none;transition:var(--transition);white-space:nowrap}.btn-primary{background:var(--primary);color:var(--white)}.btn-primary:hover{background:var(--primary-dark);box-shadow:0 6px 24px rgba(26,86,168,.3);transform:translateY(-1px)}.btn-outline{background:0 0;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:var(--white)}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:50px}.service-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:36px 30px;transition:var(--transition);position:relative;overflow:hidden}.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .4s}.service-card:hover::before{transform:scaleX(1)}.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.service-icon{width:52px;height:52px;background:var(--primary-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px;color:var(--primary)}.service-card h3{font-size:19px;font-weight:700;margin-bottom:10px}.service-card p{font-size:15px;color:var(--text-secondary);line-height:1.7}.split-row{display:flex;align-items:center;gap:80px;margin-top:30px}.split-text{flex:1}.split-text p{font-size:16px;color:var(--text-secondary);line-height:1.9;margin-bottom:16px}.split-visual{flex:1;background:linear-gradient(135deg,var(--primary-light),#dbeafe);border-radius:var(--radius-lg);padding:50px;display:flex;align-items:center;justify-content:center;min-height:320px}.split-visual img{max-height:120px}.partners-grid{display:flex;flex-wrap:wrap;gap:20px;margin-top:50px;justify-content:center}.partner-card{display:flex;align-items:center;justify-content:center;width:220px;height:100px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:var(--transition);cursor:default;text-align:center;font-size:15px;font-weight:600;color:var(--text-secondary)}.partner-card:hover{box-shadow:var(--shadow);border-color:var(--primary);color:var(--primary)}.partner-card .partner-logo-text{line-height:1.5}.cta-section{background:linear-gradient(135deg,var(--primary-dark),var(--primary));padding:80px 0;text-align:center;color:var(--white)}.cta-section h2{font-size:clamp(26px,3.5vw,38px);font-weight:700;margin-bottom:16px}.cta-section p{font-size:17px;opacity:.9;max-width:560px;margin:0 auto 32px}.cta-section .btn-primary{background:var(--white);color:var(--primary)}.cta-section .btn-primary:hover{background:#e8f0fe}.page-banner{background:linear-gradient(135deg,#f0f5ff,#e8f0fe,#dbeafe);padding:140px 0 60px;text-align:center}.page-banner h1{font-size:clamp(28px,4vw,44px);font-weight:800}.page-banner .breadcrumb{margin-top:12px;font-size:14px;color:var(--text-muted)}.breadcrumb a:hover{color:var(--primary)}.about-intro .container{display:flex;gap:80px;align-items:flex-start}.about-intro .about-text{flex:1.2}.about-intro .about-text p{font-size:16px;color:var(--text-secondary);line-height:1.9;margin-bottom:18px}.about-sidebar{flex:.8;background:var(--bg-light);border-radius:var(--radius);padding:36px;border:1px solid var(--border)}.about-sidebar h3{font-size:18px;font-weight:700;margin-bottom:20px}.info-item{margin-bottom:14px}.info-item .label{font-size:13px;color:var(--text-muted);margin-bottom:4px}.info-item .value{font-size:15px;font-weight:600;color:var(--text)}.timeline{margin-top:50px;position:relative;padding-left:30px}.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--border)}.timeline-item{position:relative;margin-bottom:36px;padding-left:32px}.timeline-item::before{content:'';position:absolute;left:-26px;top:6px;width:14px;height:14px;background:var(--primary);border-radius:50%;border:3px solid var(--primary-light)}.timeline-item .year{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:4px}.timeline-item h4{font-size:17px;font-weight:600;margin-bottom:4px}.timeline-item p{font-size:14px;color:var(--text-secondary)}.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:50px}.value-card{text-align:center;padding:40px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition)}.value-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.value-card .icon{font-size:36px;margin-bottom:16px}.value-card h3{font-size:18px;font-weight:700;margin-bottom:8px}.value-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}.services-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:50px}.service-detail-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 32px;transition:var(--transition);display:flex;gap:24px}.service-detail-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}.service-detail-card .sd-icon{width:56px;height:56px;min-width:56px;background:var(--primary-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--primary)}.sd-content h3{font-size:18px;font-weight:700;margin-bottom:8px}.sd-content p{font-size:14px;color:var(--text-secondary);line-height:1.7}.tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.tag{padding:4px 12px;font-size:12px;font-weight:500;background:var(--primary-light);color:var(--primary);border-radius:20px}.contact-grid{display:flex;gap:60px;margin-top:50px}.contact-form-wrap,.contact-info{flex:1}.contact-card{display:flex;gap:16px;padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;transition:var(--transition)}.contact-card:hover{border-color:var(--primary)}.contact-card .cc-icon{width:48px;height:48px;min-width:48px;background:var(--primary-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary)}.cc-text h4{font-size:16px;font-weight:600;margin-bottom:4px}.cc-text p{font-size:14px;color:var(--text-secondary)}.qr-box{margin-top:24px;padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center}.qr-box img{width:140px;margin:0 auto 12px}.qr-box p{font-size:14px;color:var(--text-muted)}.contact-form{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:36px}.contact-form h3{font-size:20px;font-weight:700;margin-bottom:24px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;font-size:15px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-light);color:var(--text);transition:var(--transition);font-family:inherit;outline:0}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--accent-glow)}.form-group textarea{resize:vertical;min-height:120px}.form-row{display:flex;gap:16px}.form-row .form-group{flex:1}.form-submit{width:100%}.footer{background:var(--footer-bg);color:var(--footer-text);padding:60px 0 30px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-brand img{height:36px;margin-bottom:16px;filter:brightness(0) invert(1)}.footer-brand p{font-size:14px;line-height:1.8;opacity:.8;max-width:320px}.footer h4{color:var(--white);font-size:16px;font-weight:600;margin-bottom:16px}.footer-links li{margin-bottom:10px}.footer-links li a{font-size:14px;color:var(--footer-text);transition:var(--transition)}.footer-links li a:hover{color:var(--white)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;flex-wrap:wrap;gap:16px;font-size:13px;justify-content:space-between}.footer-bottom span{opacity:.7}.back-to-top{position:fixed;bottom:32px;right:32px;width:44px;height:44px;background:var(--primary);color:var(--white);border:none;border-radius:50%;cursor:pointer;font-size:20px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition);z-index:999;box-shadow:var(--shadow)}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--primary-dark)}@media(max-width:1024px){.services-grid{grid-template-columns:repeat(2,1fr)}.about-intro .container,.split-row{flex-direction:column;gap:40px}.contact-grid{flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.values-grid{grid-template-columns:repeat(2,1fr)}.services-detail-grid{grid-template-columns:1fr}}@media(max-width:768px){.section{padding:70px 0}.hero{padding:120px 0 80px}.menu-toggle{display:flex}.nav-menu{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--white);flex-direction:column;justify-content:center;gap:8px;opacity:0;visibility:hidden;transition:var(--transition);z-index:1000}.nav-menu.active{opacity:1;visibility:visible}.nav-menu li a{font-size:20px;padding:12px 32px}.services-grid,.values-grid{grid-template-columns:1fr}.partners-grid{justify-content:center}.partner-card{width:180px;height:80px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;text-align:center;gap:8px}.form-row{flex-direction:column}.hero-buttons{flex-direction:column;align-items:flex-start}.page-banner{padding:120px 0 50px}}@media(max-width:480px){.container{padding:0 16px}.section-title{font-size:26px}.service-detail-card{flex-direction:column;padding:28px 20px}.partner-card{width:150px;height:70px;font-size:13px}}