:root{--pri:#4f6bff;--pri2:#7b5cff;--g:linear-gradient(135deg,#4f6bff 0%,#7b5cff 100%);--dark:#0d1226;--ink:#1c2440;--muted:#5a6478;--line:#e7eaf3;--bg:#f6f8ff;--card:#fff;--r:16px;--shadow:0 18px 50px -18px rgba(28,36,64,.22);--shadow-sm:0 8px 24px -10px rgba(28,36,64,.16)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.grad-txt{background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:12px;font-weight:600;font-size:15px;transition:.28s;white-space:nowrap}
.btn-pri{background:var(--g);color:#fff;box-shadow:0 12px 26px -10px rgba(79,107,255,.65)}
.btn-pri:hover{transform:translateY(-2px);box-shadow:0 18px 34px -10px rgba(79,107,255,.75)}
.btn-ghost{border:1.6px solid var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--pri);color:var(--pri)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:10px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:rgba(79,107,255,.1);color:var(--pri);font-size:13px;font-weight:600}
.sec{padding:88px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 52px}
.sec-head .tag{margin-bottom:16px}
.sec-head h2{font-size:38px;line-height:1.22;margin-bottom:16px;letter-spacing:-.5px}
.sec-head p{color:var(--muted);font-size:17px}
.h2{font-size:34px;line-height:1.22;letter-spacing:-.5px;margin-bottom:14px}
.muted{color:var(--muted)}
.grid{display:grid;gap:24px}
.c3{grid-template-columns:repeat(3,1fr)}
.c2{grid-template-columns:repeat(2,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow-sm);transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.icon{width:56px;height:56px;border-radius:14px;background:var(--g);display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px;margin-bottom:18px;flex:none}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:.35s;background:transparent}
.nav.scrolled{background:rgba(13,18,38,.86);backdrop-filter:blur(14px);padding:10px 0;box-shadow:0 8px 30px -12px rgba(0,0,0,.4)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:#fff}
.nav-logo img{height:34px;width:34px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:5px;padding:10px 16px;font-size:15px;font-weight:500;color:rgba(255,255,255,.88);border-radius:10px;transition:.25s}
.nav-link:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-link .arr{font-size:11px;transition:.3s}
.nav-item:hover .arr,.nav-item.open .arr{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 8px);left:0;min-width:230px;background:#fff;border-radius:14px;box-shadow:0 24px 60px -18px rgba(0,0,0,.3);padding:8px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s}
.nav-item:hover .dropdown,.nav-item.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:10px;color:var(--ink);font-size:14px;transition:.2s}
.dropdown a:hover{background:#f2f5ff;color:var(--pri)}
.dropdown a .dd-ic{width:30px;height:30px;border-radius:8px;background:#eef1ff;color:var(--pri);display:flex;align-items:center;justify-content:center;font-size:15px;flex:none}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-burger{display:none;width:44px;height:44px;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:rgba(255,255,255,.12)}
.nav-burger span{display:block;width:20px;height:2px;background:#fff;transition:.3s;border-radius:2px}
.nav-burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.active span:nth-child(2){opacity:0}
.nav-burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;padding:150px 0 110px;background:radial-gradient(1200px 600px at 80% -10%,rgba(123,92,255,.35),transparent 60%),radial-gradient(900px 500px at 0% 20%,rgba(79,107,255,.3),transparent 55%),var(--dark);color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero h1{font-size:52px;line-height:1.14;letter-spacing:-1px;margin:20px 0 22px}
.hero h1 .grad-txt{background:linear-gradient(135deg,#8fa3ff,#c3a8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:19px;color:rgba(255,255,255,.72);max-width:520px;margin-bottom:34px}
.hero-stats{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap}
.hero-stats .hs{display:flex;flex-direction:column}
.hero-stats .hs b{font-size:30px;font-weight:800}
.hero-stats .hs span{color:rgba(255,255,255,.6);font-size:14px}
.mock{background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.16);border-radius:22px;padding:22px;box-shadow:0 40px 90px -30px rgba(0,0,0,.6);backdrop-filter:blur(6px)}
.mock-head{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.mock-head .dot{width:12px;height:12px;border-radius:50%}
.mock-search{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.12);border-radius:12px;padding:12px 16px;margin-bottom:16px;color:rgba(255,255,255,.7)}
.mock-search input{flex:1;background:none;border:none;outline:none;color:#fff;font-size:14px}
.mock-search input::placeholder{color:rgba(255,255,255,.5)}
.mock-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.mock-tab{padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.7);font-size:13px;transition:.2s}
.mock-tab.active{background:var(--g);color:#fff}
.mock-cards{display:flex;flex-direction:column;gap:10px}
.mock-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 16px;transition:.25s;cursor:pointer}
.mock-card:hover{background:rgba(255,255,255,.16);transform:translateX(4px)}
.mock-card .mc-t{font-weight:600;font-size:14px;margin-bottom:4px}
.mock-card .mc-c{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.5}
.mock-card .mc-badge{display:inline-block;font-size:11px;padding:2px 9px;border-radius:999px;background:rgba(123,92,255,.4);margin-left:8px}
.features{background:#fff}
.f-item{text-align:left}
.f-item .icon{background:linear-gradient(135deg,rgba(79,107,255,.14),rgba(123,92,255,.14));color:var(--pri)}
.f-item h3{font-size:19px;margin-bottom:10px}
.f-item p{color:var(--muted);font-size:15px}
.scenario{background:var(--bg)}
.s-card{position:relative;overflow:hidden;text-align:left}
.s-card h3{font-size:19px;margin-bottom:10px}
.s-card p{color:var(--muted);font-size:15px;margin-bottom:16px}
.s-link{color:var(--pri);font-weight:600;font-size:14px}
.cta{background:var(--g);color:#fff;border-radius:28px;padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:38px;margin-bottom:14px;letter-spacing:-.5px}
.cta p{color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 30px;font-size:17px}
.cta .btn-pri{background:#fff;color:var(--pri);box-shadow:0 14px 30px -10px rgba(0,0,0,.3)}
.footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.6);transition:.2s}
.footer a:hover{color:#fff}
.footer .f-brand{font-size:20px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer .f-brand img{height:32px;width:32px;border-radius:8px}
.footer .f-desc{font-size:14px;max-width:280px;margin-bottom:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap}
.page-head{background:var(--dark);color:#fff;padding:140px 0 70px;position:relative;overflow:hidden}
.page-head h1{font-size:44px;margin-bottom:14px;letter-spacing:-.5px}
.page-head p{color:rgba(255,255,255,.7);font-size:17px;max-width:640px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-top:18px}
.crumb a:hover{color:#fff}
.dl-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;padding:70px 0}
.dl-data{display:flex;gap:34px;margin:26px 0 30px;flex-wrap:wrap}
.dl-data .dd b{font-size:26px;display:block}
.dl-data .dd span{color:var(--muted);font-size:14px}
.version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.v-card{text-align:center;display:flex;flex-direction:column}
.v-card .v-name{font-size:20px;font-weight:700;margin:14px 0 4px}
.v-card .v-ver{color:var(--pri);font-size:14px;font-weight:600;margin-bottom:8px}
.v-card .v-size{color:var(--muted);font-size:14px;margin-bottom:18px}
.v-card ul{text-align:left;margin-bottom:22px;flex:1}
.v-card ul li{position:relative;padding:7px 0 7px 26px;color:var(--muted);font-size:14px;border-bottom:1px dashed var(--line)}
.v-card ul li::before{content:"✓";position:absolute;left:0;color:var(--pri);font-weight:700}
.v-card.v-hot{border:2px solid var(--pri);box-shadow:0 20px 50px -18px rgba(79,107,255,.4)}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.req{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.req .icon{width:44px;height:44px;font-size:20px;margin:0}
.req b{display:block;margin-bottom:3px;font-size:15px}
.req span{color:var(--muted);font-size:13.5px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{text-align:center;position:relative}
.step .s-num{width:64px;height:64px;border-radius:50%;background:var(--g);color:#fff;font-size:26px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;box-shadow:0 12px 26px -8px rgba(79,107,255,.6)}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}
.faq{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;font-weight:600;cursor:pointer;font-size:16px}
.faq-q .f-arr{transition:.3s;color:var(--pri);font-size:18px}
.faq-item.open .f-arr{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:.35s;color:var(--muted);font-size:15px}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 24px 22px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.n-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;display:flex;flex-direction:column}
.n-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.n-card img{height:200px;width:100%;object-fit:cover}
.n-body{padding:22px;display:flex;flex-direction:column;flex:1}
.n-body .n-meta{display:flex;gap:14px;color:var(--muted);font-size:13px;margin-bottom:12px}
.n-body h3{font-size:18px;line-height:1.4;margin-bottom:10px}
.n-body h3 a:hover{color:var(--pri)}
.n-body p{color:var(--muted);font-size:14px;flex:1;margin-bottom:16px}
.article{max-width:820px;margin:0 auto;background:#fff;border-radius:20px;padding:48px;box-shadow:var(--shadow-sm)}
.article .a-meta{display:flex;gap:18px;color:var(--muted);font-size:14px;margin:18px 0 24px;flex-wrap:wrap}
.article h2{font-size:26px;margin:36px 0 14px;letter-spacing:-.3px}
.article p{color:#3a4358;font-size:16px;margin-bottom:18px;line-height:1.85}
.article img{border-radius:14px;margin:24px 0}
.article .a-tag{display:inline-block;padding:5px 14px;border-radius:999px;background:rgba(79,107,255,.1);color:var(--pri);font-size:13px;font-weight:600}
.article blockquote{border-left:4px solid var(--pri);background:#f6f8ff;padding:20px 24px;border-radius:0 12px 12px 0;margin:26px 0;color:var(--ink);font-size:16px}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:40px}
.pager a{flex:1;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:.25s}
.pager a:hover{border-color:var(--pri)}
.pager a span{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.pager a b{font-size:15px}
.pager a.next{text-align:right}
.back-list{display:inline-flex;margin-top:30px;color:var(--pri);font-weight:600}
.sitemap{max-width:860px;margin:0 auto;background:#fff;border-radius:20px;padding:44px;box-shadow:var(--shadow-sm)}
.sitemap h2{font-size:22px;margin:26px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.sitemap h2:first-child{margin-top:0}
.sitemap ul li{padding:8px 0}
.sitemap ul li a{color:var(--ink);transition:.2s;display:inline-flex;align-items:center;gap:8px}
.sitemap ul li a:hover{color:var(--pri)}
.sitemap ul li a::before{content:"›";color:var(--pri);font-weight:700}
.sitemap .s-sub{padding-left:20px}
.sitemap .s-sub li a::before{content:"·"}
.notfound{text-align:center;padding:140px 0 100px}
.notfound .nf-code{font-size:140px;font-weight:900;line-height:1;background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-4px}
.notfound h1{font-size:30px;margin:10px 0 16px}
.notfound p{color:var(--muted);font-size:17px;margin-bottom:30px}
.notfound .nf-count{color:var(--pri);font-weight:700;font-size:22px}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.float{animation:float 5s ease-in-out infinite}
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0}
.reveal.visible{animation:fadeUp .7s ease forwards}
@media(max-width:992px){
.h2{font-size:28px}
.sec-head h2{font-size:30px}
.c3,.c4,.version-grid,.req-grid{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:repeat(2,1fr)}
.news-grid{grid-template-columns:repeat(2,1fr)}
.hero-grid,.dl-grid{grid-template-columns:1fr;gap:40px}
.hero h1{font-size:40px}
.hero{padding:130px 0 80px}
.footer-grid{grid-template-columns:1fr 1fr}
.nav-links{position:fixed;top:0;right:-100%;width:82%;max-width:340px;height:100vh;background:var(--dark);flex-direction:column;align-items:stretch;padding:90px 22px 30px;gap:4px;transition:.35s;overflow-y:auto}
.nav-links.open{right:0}
.nav-burger{display:flex}
.nav-item{position:static}
.nav-link{color:#fff;justify-content:space-between;font-size:17px;padding:13px 14px}
.nav-link .arr{transition:.3s}
.nav-item.open .arr{transform:rotate(180deg)}
.dropdown{position:static;min-width:0;background:rgba(255,255,255,.06);box-shadow:none;opacity:1;visibility:visible;transform:none;display:none;padding:6px;border-radius:12px;margin:4px 0}
.nav-item.open .dropdown{display:block}
.dropdown a{color:rgba(255,255,255,.85)}
.dropdown a:hover{background:rgba(255,255,255,.1);color:#fff}
.dropdown a .dd-ic{background:rgba(255,255,255,.1);color:#fff}
.nav-cta{margin-top:16px;flex-direction:column}
.nav-cta .btn{width:100%}
}
@media(max-width:768px){
.c3,.c4,.version-grid,.req-grid,.c2{grid-template-columns:1fr}
.news-grid{grid-template-columns:1fr}
.steps{grid-template-columns:1fr}
.sec{padding:64px 0}
.sec-head{margin-bottom:38px}
.hero h1{font-size:33px}
.page-head h1{font-size:34px}
.article{padding:26px}
.cta{padding:44px 24px}
.cta h2{font-size:28px}
.footer-grid{grid-template-columns:1fr}
.footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:480px){
.wrap{padding:0 16px}
.hero h1{font-size:28px}
.hero-stats{gap:22px}
.hero-stats .hs b{font-size:24px}
.sec-head h2{font-size:26px}
.h2{font-size:24px}
.btn{padding:12px 22px;font-size:14px}
.dl-data{gap:22px}
.dl-data .dd b{font-size:22px}
.nf-code{font-size:100px}
}