:root{--primary:#4A90D9;--primary-dark:#357ABD;--accent:#FF8C42;--accent-dark:#E67A30;--text:#2D3748;--text-light:#718096;--bg:#FFFFFF;--bg-alt:#F7FAFC;--card-shadow:0 4px 24px rgba(0,0,0,0.06);--radius:16px;--max-width:1200px;--nav-height:72px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden;opacity:0;transition:opacity .4s ease}body.loaded{opacity:1}.page-loader{position:fixed;inset:0;background:#fff;display:flex;align-items:center;justify-content:center;z-index:99999;transition:opacity .4s,visibility .4s}.page-loader.hidden{opacity:0;visibility:hidden;pointer-events:none}.loader-spinner{width:40px;height:40px;border:3px solid rgba(74,144,217,.15);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.scroll-progress{position:fixed;top:0;left:0;width:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:1001;transition:width .1s linear}.navbar{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,.05);z-index:1000;transition:box-shadow .3s}.navbar.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.08)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}.nav-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}.nav-brand .logo{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}.nav-brand span{font-size:18px;font-weight:600}.nav-links{display:flex;list-style:none;gap:32px}.nav-links a{text-decoration:none;color:var(--text-light);font-size:15px;font-weight:500;transition:color .2s;position:relative}.nav-links a.active,.nav-links a:hover{color:var(--primary)}.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary);transition:width .2s}.nav-links a:hover::after{width:100%}.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;gap:40px;text-align:center;padding:calc(var(--nav-height) + 60px) 24px 80px;background:linear-gradient(165deg,#ebf4ff 0,#fff5eb 50%,#f0f7ff 100%);position:relative;overflow:hidden}.hero::before{content:'';position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(74,144,217,.08) 0,transparent 70%);top:-200px;right:-200px;border-radius:50%}.hero::after{content:'';position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(255,140,66,.06) 0,transparent 70%);bottom:-100px;left:-100px;border-radius:50%}.hero-content{position:relative;z-index:1;max-width:800px}.hero-content h1{font-size:clamp(2.2rem, 5vw, 3.5rem);font-weight:800;line-height:1.3;margin-bottom:20px;background:linear-gradient(135deg,var(--primary) 0,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-content p{font-size:clamp(1rem, 2vw, 1.25rem);color:var(--text-light);margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}.hero-cta{display:inline-flex;align-items:center;gap:8px;padding:16px 36px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;text-decoration:none;border-radius:50px;font-size:16px;font-weight:600;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 16px rgba(74,144,217,.3)}.hero-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(74,144,217,.4)}section{padding:100px 0}.section-header{text-align:center;margin-bottom:64px}.section-header h2{font-size:clamp(1.8rem, 3.5vw, 2.5rem);font-weight:700;margin-bottom:16px;color:var(--text)}.section-header p{font-size:1.05rem;color:var(--text-light);max-width:600px;margin:0 auto}.about{background:var(--bg-alt)}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.about-text p{font-size:1.05rem;color:var(--text-light);margin-bottom:24px;line-height:1.8}.about-img{width:100%;height:auto;border-radius:var(--radius);margin-top:8px;box-shadow:var(--card-shadow);object-fit:cover}.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:24px}.stat-card{background:#fff;padding:32px 24px;border-radius:var(--radius);text-align:center;box-shadow:var(--card-shadow);transition:transform .2s}.stat-card:hover{transform:translateY(-4px)}.stat-card .number{font-size:2.2rem;font-weight:800;color:var(--primary);margin-bottom:8px}.stat-card .label{font-size:.9rem;color:var(--text-light)}.business-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}.business-card{background:#fff;border-radius:var(--radius);padding:40px 28px;box-shadow:var(--card-shadow);transition:transform .3s,box-shadow .3s;border:1px solid rgba(0,0,0,.04)}.business-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.1)}.business-card .icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px}.business-card:first-child .icon{background:rgba(74,144,217,.1);color:var(--primary)}.business-card:nth-child(2) .icon{background:rgba(255,140,66,.1);color:var(--accent)}.business-card:nth-child(3) .icon{background:rgba(72,187,120,.1);color:#48bb78}.business-card:nth-child(4) .icon{background:rgba(159,122,234,.1);color:#9f7aea}.business-card h3{font-size:1.2rem;margin-bottom:12px;font-weight:600}.business-card p{font-size:.95rem;color:var(--text-light);line-height:1.7}.service{background:var(--bg-alt)}.service-flow{display:flex;align-items:flex-start;justify-content:center;gap:0;flex-wrap:wrap}.flow-step{display:flex;flex-direction:column;align-items:center;text-align:center;flex:1;min-width:180px;max-width:240px;padding:20px;position:relative}.flow-step:not(:last-child)::after{content:'';position:absolute;top:44px;right:-20px;width:40px;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent))}.flow-step .step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;margin-bottom:16px;box-shadow:0 4px 12px rgba(74,144,217,.3)}.flow-step h4{font-size:1.05rem;margin-bottom:8px;font-weight:600}.flow-step p{font-size:.88rem;color:var(--text-light)}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.contact-info{display:flex;flex-direction:column;gap:24px}.contact-item{display:flex;align-items:flex-start;gap:16px}.contact-item .ci-icon{width:44px;height:44px;border-radius:12px;background:rgba(74,144,217,.1);display:flex;align-items:center;justify-content:center;color:var(--primary);flex-shrink:0}.contact-item h4{font-size:.95rem;font-weight:600;margin-bottom:4px}.contact-item p{font-size:.9rem;color:var(--text-light)}.contact-map{background:var(--bg-alt);border-radius:var(--radius);height:300px;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.95rem;border:2px dashed rgba(0,0,0,.08)}.footer{background:var(--text);color:rgba(255,255,255,.7);padding:48px 0 32px}.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.footer-brand{font-size:1rem;font-weight:600;color:#fff}.footer-links{display:flex;gap:24px;list-style:none}.footer-links a{color:rgba(255,255,255,.6);text-decoration:none;font-size:.9rem;transition:color .2s}.footer-links a:hover{color:#fff}.footer-copy{width:100%;text-align:center;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem}.nav-toggle.active span:first-child{transform:rotate(45deg) translate(5px,5px)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}.fade-in:nth-child(2){transition-delay:0.1s}.fade-in:nth-child(3){transition-delay:0.2s}.fade-in:nth-child(4){transition-delay:0.3s}.hero-illustration{position:relative;z-index:1;width:400px;max-width:40%;animation:float 4s ease-in-out infinite}.hero-illustration svg{width:100%;height:auto}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}.contact-form-wrap{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--card-shadow)}.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-group.full{grid-column:1/-1}.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid rgba(0,0,0,.1);border-radius:10px;font-size:.95rem;font-family:inherit;transition:border-color .2s,box-shadow .2s;background:var(--bg-alt)}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(74,144,217,.1)}.contact-form textarea{resize:vertical;min-height:100px}.form-submit{grid-column:1/-1;padding:16px 32px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border:none;border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 16px rgba(74,144,217,.3)}.form-submit:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(74,144,217,.4)}.parallax-dot{position:absolute;border-radius:50%;pointer-events:none;will-change:transform}.back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid rgba(0,0,0,.08);box-shadow:0 4px 16px rgba(0,0,0,.1);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(20px);transition:opacity .3s,transform .3s,box-shadow .2s;z-index:999;color:var(--primary)}.back-to-top.visible{opacity:1;transform:translateY(0)}.back-to-top:hover{box-shadow:0 8px 24px rgba(0,0,0,.15);transform:translateY(-2px)}.page-transition{position:fixed;inset:0;background:#fff;z-index:99999;pointer-events:none;opacity:0;transition:opacity .3s ease}.page-transition.active{opacity:1;pointer-events:all}@media (max-width:768px){.nav-links{display:none;position:absolute;top:var(--nav-height);left:0;right:0;background:#fff;flex-direction:column;padding:24px;gap:20px;box-shadow:0 8px 24px rgba(0,0,0,.08)}.nav-links.open{display:flex}.nav-toggle{display:flex}.hero{flex-direction:column}.hero-illustration{max-width:70%;margin-top:20px}.about-content{grid-template-columns:1fr;gap:40px}.contact-content{grid-template-columns:1fr}.contact-form{grid-template-columns:1fr}.flow-step:not(:last-child)::after{display:none}.service-flow{flex-direction:column;align-items:center}.footer-inner{flex-direction:column;text-align:center}.back-to-top{bottom:20px;right:20px;width:42px;height:42px}.stat-card{padding:20px 16px}.stat-card .number{font-size:1.6rem}.business-grid{grid-template-columns:1fr}.hero-content h1{font-size:1.8rem}section{padding:60px 0}.section-header{margin-bottom:40px}.contact-form-wrap{padding:20px}}