:root{--paper:#f7f3ea;--ink:#10283d;--muted:#60707a;--line:#d7ded8;--green:#496f5d;--green-soft:#dbe8df;--orange:#df7b3c;--blue:#347d9c;--purple:#725b92;--white:#fffdf8;--shadow:0 18px 55px rgba(16,40,61,.10);--radius:22px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input,select{font:inherit}button{cursor:pointer}p{margin:.7em 0;color:#344b59}h1,h2,h3{line-height:1.22;letter-spacing:-.02em;margin:0 0 .65em}h1{font-size:clamp(2.45rem,6vw,5.45rem);max-width:950px}h2{font-size:clamp(1.8rem,3.6vw,3.25rem)}h3{font-size:1.25rem}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.eyebrow{display:inline-flex;gap:9px;align-items:center;color:var(--green);font-weight:800;font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:18px}.eyebrow:before{content:"";width:28px;height:2px;background:var(--orange)}.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:830px}.small{font-size:.86rem;color:var(--muted)}.notice{border-left:4px solid var(--orange);padding:13px 18px;background:#fff8ee;border-radius:0 12px 12px 0}.site-header{position:sticky;top:0;z-index:30;background:rgba(247,243,234,.94);backdrop-filter:blur(15px);border-bottom:1px solid rgba(16,40,61,.09)}.nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;white-space:nowrap}.brand img{width:42px}.nav{display:flex;align-items:center;gap:4px}.nav a{padding:10px 9px;border-radius:10px;font-size:.79rem;font-weight:700;color:#334b5b}.nav a:hover,.nav a[aria-current="page"]{background:var(--white);color:var(--green)}.menu-btn{display:none;background:var(--ink);color:#fff;border:0;border-radius:12px;padding:10px 13px}.hero{padding:86px 0 54px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(73,111,93,.15),transparent 67%);right:-120px;top:-150px;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}.hero h1 em{font-style:normal;color:var(--green)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid var(--ink);transition:.2s}.btn.primary{background:var(--ink);color:#fff}.btn.light{background:var(--white)}.btn:hover{transform:translateY(-2px)}.metric-row{display:flex;gap:26px;flex-wrap:wrap;margin-top:30px}.metric strong{display:block;font-size:1.25rem}.metric span{font-size:.78rem;color:var(--muted)}.hero-board{background:var(--ink);padding:18px;border-radius:28px;box-shadow:var(--shadow);transform:rotate(1deg);position:relative}.hero-board img{border-radius:16px;background:#e8efe9}.search-demo{background:#fff;border-radius:14px;padding:13px 16px;margin-top:12px;color:var(--ink);font-size:.9rem;display:flex;gap:12px}.search-demo b{color:var(--orange)}.section{padding:84px 0}.section.tight{padding:55px 0}.section-head{display:grid;grid-template-columns:1fr .75fr;gap:30px;align-items:end;margin-bottom:38px}.section-head p{margin:0}.tint{background:#e8eee7}.navy{background:var(--ink);color:#fff}.navy p{color:#c6d3dc}.purple-tint{background:#eee8f3}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.panel{background:var(--white);border:1px solid rgba(16,40,61,.1);border-radius:var(--radius);padding:26px;box-shadow:0 8px 30px rgba(16,40,61,.04)}.panel.dark{background:#17364c;color:#fff}.panel.dark p{color:#ccd8de}.panel h3{margin-top:.2em}.panel img{border-radius:15px;margin-bottom:20px;background:#eef2ed}.step{position:relative;padding-top:55px}.step .num{position:absolute;top:10px;left:0;font-size:.75rem;font-weight:900;color:var(--orange);border:1px solid var(--orange);border-radius:99px;padding:3px 8px}.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden}.flow>div{background:var(--white);padding:24px}.flow strong{display:block;font-size:1.05rem}.compare{overflow:auto;border-radius:18px;border:1px solid var(--line)}table{width:100%;border-collapse:collapse;background:var(--white);min-width:620px}th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#e9eee9;color:var(--ink)}.query{background:#122e43;color:#fff;padding:30px;border-radius:24px}.query-box{padding:18px;background:#fff;color:var(--ink);border-radius:14px;margin:18px 0}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:6px 10px;border-radius:99px;background:#dce9e1;color:#234c3c;font-size:.8rem;font-weight:800}.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:25px}.timeline span{height:48px;border-radius:7px;background:#dfe5e1;position:relative}.timeline span.active{background:var(--orange)}.timeline span:after{content:attr(data-label);position:absolute;top:54px;font-size:.7rem;color:var(--muted);white-space:nowrap}.article-list{display:grid;gap:22px}.article-card{display:grid;grid-template-columns:280px 1fr;gap:30px;background:var(--white);border-radius:24px;padding:22px;border:1px solid rgba(16,40,61,.1)}.article-card:nth-child(even){grid-template-columns:1fr 280px}.article-card:nth-child(even) .article-art{order:2}.article-art img{height:100%;min-height:220px;object-fit:cover;border-radius:15px;background:#e6ece8}.article-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:.76rem;color:var(--muted);font-weight:700}.text-link{display:inline-flex;margin-top:10px;color:var(--green);font-weight:900;border-bottom:2px solid var(--orange)}.app-guides{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.guide{background:var(--white);border-radius:20px;padding:22px}.guide img{height:200px;width:100%;object-fit:cover;border-radius:12px;background:#e4ece8}.guide h3{margin-top:18px}.article-body{max-width:850px}.article-body>p{font-size:1.03rem}.article-body h2{margin-top:1.8em;font-size:2rem}.article-body h3{margin-top:1.7em}.article-body ul{padding-left:1.2em}.article-body li{margin:.55em 0;color:#344b59}.source-note{font-size:.86rem;padding:16px;border:1px dashed var(--green);border-radius:12px;margin:24px 0}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden}.feature{background:var(--white);padding:24px;display:grid;grid-template-columns:46px 1fr;gap:14px}.feature b{font-size:1.5rem;color:var(--green)}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;background:var(--white);padding:16px;border-radius:16px;margin-bottom:24px}.filter-bar select,.filter-bar input{padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}.result-count{margin-left:auto;font-weight:800;color:var(--green)}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;border:0;background:transparent;text-align:left;display:flex;justify-content:space-between;gap:18px;padding:20px 2px;font-weight:900;color:var(--ink)}.faq-q:after{content:"+";font-size:1.4rem;color:var(--orange)}.faq-item.open .faq-q:after{content:"−"}.faq-a{display:none;padding:0 40px 20px 2px}.faq-item.open .faq-a{display:block}.breadcrumb{font-size:.8rem;color:var(--muted);padding-top:24px}.page-hero{padding:65px 0 48px}.page-hero h1{font-size:clamp(2.4rem,5vw,4.7rem)}.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}.page-hero img{border-radius:24px;background:#e7eee8}.contact-band{background:var(--orange);color:#152b3d;padding:28px;border-radius:24px;display:flex;justify-content:space-between;gap:20px;align-items:center}.contact-band p{color:#293b48}.site-footer{background:#0d2639;color:#fff;padding:58px 0 26px}.site-footer p{color:#bccbd4}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:42px}.footer-links{display:grid;gap:8px;font-size:.88rem}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.78rem;color:#aabac4}.back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;border:0;background:var(--orange);color:#fff;font-weight:900;opacity:0;pointer-events:none;transition:.2s;z-index:25}.back-top.show{opacity:1;pointer-events:auto}.legal{font-size:.8rem;color:var(--muted)}
@media(max-width:980px){.menu-btn{display:block}.nav{position:fixed;inset:76px 0 auto 0;background:var(--paper);padding:20px;display:none;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);max-height:calc(100vh - 76px);overflow:auto}.nav.open{display:flex}.nav a{font-size:.95rem;padding:12px}.hero-grid,.page-hero-grid,.section-head{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}.article-card,.article-card:nth-child(even){grid-template-columns:210px 1fr}.article-card:nth-child(even) .article-art{order:0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:680px){.wrap{width:min(100% - 26px,var(--max))}.hero{padding-top:56px}.section{padding:62px 0}.grid-2,.grid-3,.grid-4,.app-guides{grid-template-columns:1fr}.flow{grid-template-columns:1fr}.article-card,.article-card:nth-child(even){grid-template-columns:1fr;padding:16px}.article-art img{min-height:180px}.feature-list{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(5,minmax(56px,1fr));overflow:auto;padding-bottom:30px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.contact-band{align-items:flex-start;flex-direction:column}.metric-row{gap:17px}.hero-board{transform:none}.result-count{margin-left:0;width:100%}h1{font-size:2.55rem}}