:root{--ink:#17201d;--muted:#63706b;--paper:#f4f7f3;--card:#fff;--line:#dce4df;--green:#26745a;--green-dark:#18503e;--mint:#dff1e9;--amber:#f4b95f;--shadow:0 12px 35px rgba(23,32,29,.08);--radius:20px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img{max-width:100%;height:auto}
.container{width:min(1120px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(244,247,243,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,223,.8)}
.nav{height:72px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;margin-right:auto}
.brand img{width:38px;height:38px;border-radius:11px}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px}
.nav-links a{color:var(--muted);transition:color .16s ease}
.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--green)}
.nav-toggle{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border:1px solid transparent;border-radius:13px;font-weight:700;cursor:pointer;transition:transform .14s ease,box-shadow .14s ease,background .14s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(38,116,90,.16)}
.btn:active{transform:translateY(1px) scale(.985);box-shadow:none}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark)}
.btn-secondary{background:#fff;border-color:var(--line)}
.btn-small{min-height:38px;padding:7px 13px;font-size:14px}
.hero{padding:76px 0 52px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:60px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--mint);color:var(--green-dark);font-size:13px;font-weight:800}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green)}
h1{font-size:clamp(40px,6vw,68px);line-height:1.08;letter-spacing:-.045em;margin:20px 0}
h2{font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.025em;margin:0 0 14px}
h3{font-size:20px;line-height:1.35;margin:0 0 9px}
.lead{font-size:18px;color:var(--muted);max-width:680px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.hero-visual{position:relative}
.hero-visual:before{content:"";position:absolute;inset:8% -8% -8% 10%;background:var(--mint);border-radius:35% 55% 45% 40%;transform:rotate(5deg)}
.hero-visual img{position:relative;display:block;width:880px;aspect-ratio:44/35;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}
.stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.stat{padding:8px 12px;border-left:2px solid var(--amber);font-size:13px;color:var(--muted)}
.stat strong{color:var(--ink)}
.section{padding:76px 0}
.section-tint{background:#eaf0eb}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
.section-head p{margin:0;color:var(--muted);max-width:610px}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 1px 0 rgba(23,32,29,.02);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c6d7ce}
.icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:18px;border-radius:13px;background:var(--mint);color:var(--green);font-size:21px;font-weight:900}
.card p,.muted{color:var(--muted)}
.text-link{display:inline-flex;margin-top:8px;color:var(--green);font-weight:800}
.detail{display:grid;grid-template-columns:.86fr 1.14fr;gap:48px;align-items:center}
.detail img{border-radius:24px;box-shadow:var(--shadow)}
.checklist{padding:0;list-style:none}
.checklist li{position:relative;padding:7px 0 7px 29px}
.checklist li:before{content:"✓";position:absolute;left:0;top:7px;color:var(--green);font-weight:900}
.platform{display:flex;align-items:flex-start;gap:15px}
.platform b{display:block}
.faq{display:grid;gap:10px}
details{background:#fff;border:1px solid var(--line);border-radius:15px;padding:0 19px}
summary{cursor:pointer;font-weight:750;padding:17px 0}
details p{color:var(--muted);margin:0 0 17px}
.cta{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--green-dark);color:#fff;border-radius:28px;padding:38px}
.cta p{color:#cfe2da;margin:7px 0 0}
.page-hero{padding:64px 0 35px}
.page-hero h1{font-size:clamp(36px,5vw,56px);max-width:850px}
.breadcrumb{font-size:13px;color:var(--muted)}
.release{display:grid;grid-template-columns:1fr auto;align-items:center;gap:18px}
.tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--mint);color:var(--green-dark);font-size:12px;font-weight:800}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}
.tab{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 13px;cursor:pointer}
.tab[aria-selected=true]{background:var(--green);color:#fff;border-color:var(--green)}
.download-panel[hidden]{display:none}
.hash-box,.code-box{display:flex;align-items:center;gap:12px;background:#15211d;color:#d7e5df;border-radius:13px;padding:14px}
.hash-box code,.code-box code{overflow:auto;white-space:nowrap;flex:1;font-size:13px}
.copy-btn{flex:0 0 auto;border:0;border-radius:9px;background:#2b443b;color:#fff;padding:7px 10px;cursor:pointer}
.copy-btn:active{transform:scale(.96)}
.notice{padding:15px 17px;background:#fff8e8;border-left:3px solid var(--amber);border-radius:0 12px 12px 0;color:#715528}
.steps{counter-reset:step}
.step{position:relative;padding-left:74px}
.step:before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;font-weight:900}
.toast{position:fixed;left:50%;bottom:28px;z-index:50;transform:translate(-50%,20px);padding:10px 16px;border-radius:999px;background:#13231d;color:#fff;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.site-footer{padding:56px 0 25px;background:#14221d;color:#dfe9e5}
.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:28px}
.footer-title{font-weight:800;margin-bottom:13px;color:#fff}
.footer-links{display:grid;gap:8px;font-size:14px;color:#afc1ba}
.footer-note{border-top:1px solid #314139;margin-top:35px;padding-top:22px;font-size:13px;color:#93aaa1}
:focus-visible{outline:3px solid rgba(244,185,95,.8);outline-offset:3px}
@media(max-width:820px){.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:20px;right:20px;top:64px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.hero-grid,.detail{grid-template-columns:1fr}.hero{padding-top:48px}.hero-visual{max-width:620px}.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.container{width:min(100% - 28px,1120px)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section{padding:54px 0}.section-head,.cta{align-items:flex-start;flex-direction:column}.release{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.step{padding-left:62px}.nav>.btn{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.btn:hover,.card:hover{transform:none}.toast{transform:translate(-50%,0)}}