: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;--surface-dark-2:#173A4C;--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,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}.wrap{width:min(var(--wrap),calc(100% - 40px));margin:auto}.newsbar{background:var(--navy);color:white;font-size:13px}.newsbar-inner{height:29px;display:flex;align-items:center;gap:24px;white-space:nowrap;overflow:hidden}.newsbar strong{color:var(--primary-light)}.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);transition:.2s}.site-header.scrolled{background:rgba(255,255,255,.97);box-shadow:var(--shadow)}.header-inner{height:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-size:20px;color:var(--navy);min-width:max-content}.brand img{width:34px;height:34px;object-fit:contain}.desktop-nav{display:flex;gap:23px;align-items:stretch;height:100%;margin-left:18px}.desktop-nav a{position:relative;display:flex;align-items:center;color:var(--text-2);font-size:15px}.desktop-nav a.active,.desktop-nav a:hover{color:var(--primary)}.desktop-nav a.active:after{content:"";position:absolute;height:2px;width:22px;background:var(--primary-2);left:50%;bottom:0;transform:translateX(-50%)}.header-actions{margin-left:auto;display:flex;gap:16px;align-items:center;font-size:14px;color:var(--text-2)}.icon-btn{border:1px solid var(--line-strong);background:white;border-radius:10px;padding:7px 11px;cursor:pointer}.drawer{display:none;border-top:1px solid var(--line);background:white}.drawer.open{display:block}.drawer-grid{padding:18px 0;display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.drawer-grid a{padding:10px 12px;border-radius:10px;background:var(--bg-2)}
.hero,.page-hero{padding:62px 0}.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:48px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(38px,5vw,72px);line-height:1.08;letter-spacing:-1.6px;margin:10px 0 22px;color:var(--navy)}.eyebrow{font-weight:700;color:var(--primary);letter-spacing:.08em}.hero p,.page-hero p{font-size:18px;color:var(--text-2);max-width:760px}.hero-visual{background:linear-gradient(135deg,#EAF3F7,#E5EFF4);border:1px solid var(--line);border-radius:26px;padding:18px;box-shadow:var(--shadow)}.hero-visual img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border-radius:10px;background:var(--primary);color:white;font-weight:700;border:1px solid var(--primary)}.btn.alt{background:white;color:var(--navy);border-color:var(--line-strong)}.btn.purple{background:var(--purple);border-color:var(--purple)}.search-box{margin-top:28px;background:white;border:1px solid var(--line-strong);border-radius:14px;padding:8px;display:flex;box-shadow:var(--shadow);max-width:760px}.search-box input{flex:1;border:0;outline:0;padding:8px 12px;background:transparent}.search-box button{border:0;background:var(--navy);color:white;border-radius:9px;padding:9px 18px}.hot-tags,.tag-wall{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}.chip{padding:7px 12px;border-radius:999px;border:1px solid var(--line-strong);background:white;color:var(--text-2);font-size:14px}.chip:hover{border-color:var(--primary-2);color:var(--primary)}section{padding:54px 0}.section-alt{background:var(--bg-2)}.section-dark{background:var(--navy);color:white}.section-purple{background:linear-gradient(180deg,#F7F6FD,var(--purple-soft))}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.section-head h2{font-size:34px;line-height:1.2;margin:0;color:var(--navy)}.section-dark .section-head h2{color:white}.section-head p{margin:0;color:var(--text-2);max-width:650px}.section-dark .section-head p{color:rgba(255,255,255,.72)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:white;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow);transition:.2s}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.card h3{margin:8px 0;color:var(--navy)}.card p{color:var(--text-2);margin:0 0 12px}.tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700}.meta{font-size:13px;color:var(--text-3)}.text-link{display:inline-block;color:var(--primary);font-weight:700;margin-top:10px}.feature-split{display:grid;grid-template-columns:1.2fr 1fr;gap:26px;align-items:center}.feature-media img{border-radius:20px;width:100%;aspect-ratio:16/10;object-fit:cover}.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.step{position:relative;background:white;border:1px solid var(--line);border-radius:12px;padding:16px;min-height:150px}.step b{display:block;color:var(--primary);font-size:14px;margin-bottom:6px}.step p{font-size:14px;color:var(--text-2)}.rank-list{display:grid;gap:8px}.rank-row{display:grid;grid-template-columns:54px 1.6fr .7fr .6fr .6fr;gap:12px;align-items:center;background:white;padding:13px 16px;border-radius:12px;border:1px solid var(--line)}.rank-no{font-size:22px;font-weight:800;color:var(--primary)}.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.checkitem{background:white;border-left:3px solid var(--primary-2);padding:14px 16px;border-radius:8px;box-shadow:var(--shadow)}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);background:white;border-radius:12px;overflow:hidden}.faq-q{width:100%;display:flex;justify-content:space-between;gap:14px;background:white;border:0;padding:16px 18px;text-align:left;font-weight:700;color:var(--navy);cursor:pointer}.faq-a{display:none;padding:0 18px 16px;color:var(--text-2)}.faq-item.open .faq-a{display:block}.cta-panel{padding:34px;border-radius:24px;background:linear-gradient(135deg,var(--navy),var(--surface-dark-2));color:white}.cta-panel h2{color:white;margin-top:0}.page-hero.compact{padding:48px 0}.page-hero.compact h1{font-size:48px}.breadcrumb{font-size:14px;color:var(--text-3)}.site-footer{margin-top:50px;background:linear-gradient(135deg,#12364C,#071C29);color:rgba(255,255,255,.72);border-top:1px solid rgba(50,184,216,.3);padding:48px 0 18px}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:34px}.site-footer h4{color:white;margin-top:0}.site-footer a{display:block;margin:8px 0}.site-footer a:hover{color:var(--primary-light)}.footer-brand{color:white}.footer-brand img{width:32px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:16px;display:flex;justify-content:space-between}.mobile-bottom{display:none}.back-top{position:fixed;right:22px;bottom:24px;border:0;background:var(--navy);color:white;width:42px;height:42px;border-radius:50%;display:none}.back-top.show{display:block}.reveal{opacity:1;transform:none}.reveal.pre{opacity:0;transform:translateY(12px);transition:.5s}.reveal.pre.in{opacity:1;transform:none}.notice{padding:15px 18px;border-radius:12px;background:#fff8e8;border:1px solid #f3d69d;color:#72551e}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px}.comparison>div{padding:22px;border-radius:16px;background:white;border:1px solid var(--line)}
@media(max-width:1200px){.desktop-nav{gap:14px}.header-actions>a{display:none}.grid-4{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(4,1fr)}}
@media(max-width:900px){.desktop-nav{display:none}.hero-grid,.feature-split{grid-template-columns:1fr}.hero{padding:44px 0}.grid,.grid-2{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.rank-row{grid-template-columns:44px 1fr .6fr}.rank-row span:nth-child(n+4){display:none}}
@media(max-width:600px){.wrap{width:min(100% - 24px,var(--wrap))}.newsbar-inner span:nth-of-type(n+2){display:none}.header-inner{height:62px}.hero h1,.page-hero h1{font-size:38px}.page-hero.compact h1{font-size:38px}.section-head{display:block}.section-head h2{font-size:28px}.grid,.grid-2,.grid-4,.checklist,.comparison{grid-template-columns:1fr}.timeline{grid-template-columns:1fr}.search-box{display:grid}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:40;background:white;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);padding:8px 4px}.mobile-bottom a{text-align:center;font-size:12px;color:var(--text-2)}body{padding-bottom:58px}.back-top{bottom:76px}.drawer-grid{grid-template-columns:1fr 1fr}.rank-row{grid-template-columns:38px 1fr}.rank-row span:nth-child(n+3){display:none}}
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