:root{--paper:#f7f8f5;--white:#fff;--ink:#15343d;--muted:#637b83;--line:#d9e7e5;--mist:#eaf3f2;--mint:#bde8d8;--green:#14866f;--green-dark:#0e6757;--orange:#f3a77e;--shadow:0 22px 62px rgba(18,62,69,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}img{display:block;max-width:100%}button{font:inherit}.wrap{width:min(1200px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px;z-index:99}.site-header{position:sticky;top:0;z-index:30;background:rgba(247,248,245,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(217,231,229,.7)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:20px}.brand{display:flex;align-items:center;gap:11px;font-weight:760;letter-spacing:.02em;white-space:nowrap}.brand img{width:42px;height:42px}.brand span{font-size:16px}.nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:650}.nav a{padding:10px 0;color:#31515a}.nav a[aria-current=page],.nav a:hover{color:var(--green)}.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:12px;padding:7px 12px;color:var(--ink)}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--green-dark);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.eyebrow:before{content:"";width:21px;height:1px;background:currentColor}.section{padding:88px 0}.section-tight{padding:62px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}.section-head p{max-width:530px;margin:0;color:var(--muted)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.27;letter-spacing:-.035em}h1{font-size:clamp(38px,4.7vw,68px);margin:17px 0 25px;font-weight:800}h2{font-size:clamp(29px,3.1vw,44px);margin:13px 0 15px}h3{font-size:21px;margin:0 0 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20%,#ecf5f3 100%)}.hero:before{content:"";position:absolute;inset:auto -15% -23% 52%;height:260px;border:1px solid #c0dfd9;border-radius:50%;transform:rotate(-10deg);pointer-events:none}.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;align-items:center;gap:6%;padding-bottom:56px}.hero-copy{position:relative;z-index:1}.hero-copy p{max-width:580px}.hero-note{display:flex;align-items:center;gap:10px;margin-top:30px;color:#547179;font-size:13px}.hero-note:before{content:"";height:1px;width:32px;background:var(--green)}.hero-image-shell{position:relative;padding:14px;border:1px solid #c4ded7;border-radius:32px;background:rgba(255,255,255,.43);box-shadow:var(--shadow);transform:rotate(-1.3deg)}.hero-image-shell:after{content:"";position:absolute;right:-20px;bottom:26px;width:64px;height:64px;border:1px solid var(--mint);border-radius:50%;box-shadow:0 0 0 15px rgba(189,232,216,.35)}.hero-image{width:100%;height:auto;border-radius:22px}.platform-arc{position:relative;border-top:1px solid #bddcd4;padding:28px 0 30px}.platform-arc:before{content:"";position:absolute;width:55%;height:52px;border-top:1px solid #a8d6cd;border-radius:50%;left:22.5%;top:-24px;pointer-events:none}.platform-links{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative}.platform-links a{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.7);border:1px solid #d6e6e2;border-radius:16px;padding:12px 18px;font-size:13px;font-weight:760}.platform-links a:after{content:"↗";color:var(--green)}.platform-links a:hover,.quick-card:hover,.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.quick-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;min-height:155px;transition:.2s}.quick-card b{display:block;font-size:18px;margin:12px 0 5px}.quick-card span{color:var(--muted);font-size:13px}.quick-card:after{content:"↗";position:absolute;right:23px;top:22px;color:var(--green)}.index{font-size:12px;color:var(--green);font-weight:800;letter-spacing:.12em}.device-band{background:#eaf3f1;overflow:hidden}.band-row{display:grid;grid-template-columns:180px repeat(2,1fr);gap:15px;align-items:stretch;margin-top:15px}.band-label{display:flex;align-items:center;font-size:13px;letter-spacing:.12em;color:var(--green-dark);font-weight:800}.band-card{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:130px;padding:23px 25px;background:#fff;border:1px solid #d7e6e2;border-radius:20px}.band-card strong{font-size:20px}.band-card p{font-size:13px;color:var(--muted);margin:5px 0 0}.band-card .circle-arrow{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:var(--green);background:var(--mist);flex:none}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:42px}.step{position:relative;padding:27px 23px 0 0}.step:before{content:"";position:absolute;top:-6px;left:0;width:11px;height:11px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px var(--paper)}.step span{display:block;color:var(--green);font-size:12px;font-weight:800;letter-spacing:.12em}.step h3{margin:12px 0 8px}.step p{color:var(--muted);font-size:14px;margin:0}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:7%;align-items:center;margin:0 0 84px}.feature-row:last-child{margin-bottom:0}.feature-row.reverse .feature-visual{order:2}.feature-visual{background:#e7f1ee;border-radius:30px;padding:13px;box-shadow:var(--shadow)}.feature-visual img{width:100%;height:auto;border-radius:21px}.feature-visual.portrait{width:min(100%,420px);margin:auto}.feature-copy{max-width:540px}.feature-copy ul,.content-list{padding-left:20px;color:#526d75}.feature-copy li,.content-list li{margin-bottom:7px}.feature-copy 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@media(max-width:920px){.nav{gap:13px}.brand span{font-size:14px}.hero-grid{gap:3%}.band-row{grid-template-columns:125px repeat(2,1fr)}.quick-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:repeat(2,1fr)}.content-grid,.article-layout{grid-template-columns:1fr}.side-box{position:static}.resource-links{grid-template-columns:repeat(3,1fr)}}
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@media(max-width:440px){.brand span{font-size:12px}.brand img{width:36px;height:36px}.platform-links a{padding:11px;font-size:12px}.band-row{grid-template-columns:1fr}.band-card{min-height:90px}.steps{grid-template-columns:1fr}.step{padding-top:19px}.btn-row .btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.resource-links{grid-template-columns:1fr 1fr}}