:root{--primary:#168FC4;--primary-2:#32B8D8;--primary-light:#AEE4F2;--primary-soft:#E4F5FA;--purple:#6E68B7;--purple-soft:#EFEEFA;--navy:#12364C;--navy-2:#0B2637;--navy-3:#071C29;--bg:#F4F9FB;--bg-2:#EAF3F7;--bg-3:#FAFDFE;--surface:#fff;--surface-dark:#102D3E;--text:#152D3A;--text-2:#526B78;--text-3:#8AA0AB;--line:rgba(22,143,196,.10);--line-strong:rgba(22,143,196,.24);--shadow:0 6px 24px rgba(14,74,103,.08);--shadow-hover:0 16px 38px rgba(14,74,103,.14);--radius:10px;--radius-card:14px;--radius-large:20px;--wrap:1320px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(var(--wrap),calc(100% - 40px));margin:auto}.briefbar{background:var(--navy);color:#fff;font-size:13px;padding:4px 0}.briefbar span{color:var(--primary-light);margin-left:18px}.site-header{position:sticky;top:0;z-index:30;background:rgba(244,249,251,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.site-header.scrolled{background:rgba(255,255,255,.97)}.nav-wrap{height:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-size:20px}.brand img{width:34px;height:34px;object-fit:contain}.main-nav{display:flex;gap:22px;flex:1}.main-nav a,.nav-actions a{color:var(--text-2);font-size:14px;position:relative}.main-nav a.active{color:var(--primary)}.main-nav a.active:after{content:"";position:absolute;left:20%;right:20%;bottom:-22px;height:2px;background:var(--primary-2)}.nav-actions{display:flex;gap:14px}.menu-btn{display:none;border:0;background:none;font-size:22px}.drawer{display:none;position:fixed;inset:98px 20px auto auto;z-index:35;background:white;box-shadow:var(--shadow-hover);padding:18px;border-radius:14px;width:220px}.drawer.open{display:grid;gap:10px}.hero{padding:72px 0;background:linear-gradient(135deg,#F4F9FB 0%,#EAF3F7 60%,#E5EFF4 100%)}.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:54px;align-items:center}.eyebrow,.tag{display:inline-block;color:var(--primary);background:var(--primary-soft);padding:4px 10px;border-radius:999px;font-size:12px}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.08;margin:16px 0}.hero p{font-size:18px;color:var(--text-2);max-width:760px}.hero-media img{border-radius:24px;box-shadow:var(--shadow-hover)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.btn{display:inline-flex;padding:12px 18px;border-radius:10px;background:var(--primary);color:#fff;font-weight:700}.btn.secondary{background:white;color:var(--navy);border:1px solid var(--line-strong)}.hero-search{display:flex;gap:8px;margin-top:22px}.hero-search input,.search-box input{flex:1;padding:14px 16px;border:1px solid var(--line-strong);border-radius:10px;background:white}.hero-search button{padding:0 20px;border:0;border-radius:10px;background:var(--navy);color:#fff}.section{padding:68px 0}.section.alt{background:var(--bg-2)}.section.dark{background:var(--navy);color:#fff}.section.dark .section-head p,.section.dark .card p{color:rgba(255,255,255,.72)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}.section-head h2{font-size:30px;margin:0}.section-head p{max-width:720px;color:var(--text-2);margin:0}.grid{display:grid;gap:18px}.cards{grid-template-columns:repeat(3,1fr)}.card{background:var(--surface);padding:22px;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow)}.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.card h3{margin:8px 0}.card p{color:var(--text-2)}.text-link{color:var(--primary);font-weight:700}.keywords{display:flex;flex-wrap:wrap;gap:10px}.keywords a{background:white;border:1px solid var(--line-strong);padding:8px 13px;border-radius:999px}.featured{display:grid;grid-template-columns:1.4fr 1fr;gap:18px}.feature-big{min-height:320px;background:linear-gradient(135deg,var(--navy),var(--surface-dark));color:#fff;border-radius:20px;padding:30px;display:flex;flex-direction:column;justify-content:end}.feature-stack{display:grid;grid-template-columns:1fr 1fr;gap:14px}.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.step{background:white;border-top:3px solid var(--primary-2);padding:16px;border-radius:10px}.rank-list{display:grid;gap:8px}.rank-item{display:grid;grid-template-columns:50px 1fr auto auto;gap:14px;align-items:center;background:white;padding:14px;border-radius:10px}.rank-num{font-weight:800;color:var(--primary)}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.checklist{columns:2;column-gap:30px}.checklist li{break-inside:avoid;margin-bottom:10px}.faq-item{border-bottom:1px solid var(--line);padding:14px 0}.faq-q{width:100%;background:none;border:0;text-align:left;font-size:17px;font-weight:700;padding:0;cursor:pointer}.faq-a{display:none;color:var(--text-2);padding-top:8px}.faq-item.open .faq-a{display:block}.page-hero{padding:56px 0;background:linear-gradient(135deg,var(--bg),var(--bg-2))}.page-hero h1{font-size:48px;margin:8px 0}.page-hero p{max-width:820px;color:var(--text-2)}.image-strip{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px}.image-strip img{width:100%;height:260px;object-fit:cover;border-radius:16px}.workflow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.workflow-steps div{background:white;padding:16px;border-radius:10px;border-left:3px solid var(--primary)}.site-footer{background:linear-gradient(135deg,#12364C,#071C29);color:rgba(255,255,255,.72);padding:54px 0 22px;border-top:1px solid rgba(50,184,216,.2)}.footer-grid{display:grid;grid-template-columns:2fr repeat(5,1fr);gap:18px}.site-footer h3{color:#fff}.site-footer a:hover{color:var(--primary-light)}.copyright{text-align:center;margin-top:28px}.mobile-bottom{display:none}.backtop{position:fixed;right:20px;bottom:20px;width:42px;height:42px;border:0;border-radius:50%;background:var(--navy);color:white;display:none}.backtop.show{display:block}.reveal{opacity:0;transform:translateY(12px);transition:.4s}.reveal.in{opacity:1;transform:none}@media(max-width:1024px){.main-nav,.nav-actions{display:none}.menu-btn{display:block;margin-left:auto}.hero-grid,.featured{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(3,1fr)}.workflow-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:768px){.wrap{width:min(100% - 24px,var(--wrap))}.hero{padding:44px 0}.hero h1,.page-hero h1{font-size:38px}.cards,.feature-stack,.compare,.image-strip{grid-template-columns:1fr}.timeline,.workflow-steps{grid-template-columns:1fr}.section{padding:48px 0}.section-head{display:block}.rank-item{grid-template-columns:40px 1fr}.rank-item span:nth-last-child(-n+2){display:none}.checklist{columns:1}.mobile-bottom{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;background:white;border-top:1px solid var(--line);z-index:40;padding:8px 0}.mobile-bottom a{text-align:center;font-size:12px}.site-footer{padding-bottom:80px}.image-strip img{height:220px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}