:root{--ink:#1e272c;--gray:#6c7478;--paper:#f5f3ec;--paper2:#eceae2;--blue:#2d6ea0;--blue2:#63a7c3;--red:#b64d42;--line:#d9d7cf;--white:#fff;--shadow:0 20px 55px rgba(42,46,45,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;background:var(--paper)}a{color:inherit;text-decoration:none}img{display:block;width:100%;height:auto}button,input{font:inherit}.container{width:min(1160px,calc(100% - 44px));margin:0 auto}
.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(217,215,207,.9);background:rgba(245,243,236,.9);backdrop-filter:blur(17px)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}.logo{display:flex;align-items:center;gap:12px;font-family:"Songti SC","SimSun",serif;font-size:22px;font-weight:900}.seal{width:40px;height:40px;display:grid;place-items:center;border:2px solid var(--red);color:var(--red);font-family:"Microsoft YaHei",sans-serif;font-size:17px;font-weight:900;transform:rotate(-3deg)}.nav-links{display:flex;align-items:center;gap:26px;color:#596064;font-size:13px}.nav-links a:hover,.inline-link{color:var(--blue)}.nav-actions{display:flex;gap:10px}
.btn{display:inline-flex;min-height:46px;padding:0 24px;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:1px;font-weight:800;transition:.2s ease}.btn:hover{transform:translateY(-2px)}.btn-ink{color:#fff;background:var(--ink);box-shadow:0 12px 28px rgba(30,39,44,.17)}.btn-line{color:var(--ink);border-color:#9ca1a0;background:transparent}.btn-paper{color:var(--ink);background:var(--paper)}
.hero{position:relative;overflow:hidden;padding:98px 0 94px;background:radial-gradient(ellipse at 83% 21%,rgba(45,110,160,.15),transparent 27%),radial-gradient(ellipse at 18% 90%,rgba(30,39,44,.08),transparent 30%),var(--paper)}.hero:before{content:"";position:absolute;right:-110px;top:-150px;width:560px;height:560px;border-radius:48% 52% 46% 54%;background:radial-gradient(circle,rgba(28,37,41,.08),rgba(28,37,41,.025) 45%,transparent 66%);filter:blur(3px)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.kicker{display:flex;align-items:center;gap:12px;margin-bottom:18px;color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.18em}.kicker:before{content:"";width:33px;height:1px;background:var(--blue)}h1,h2,h3,p{margin-top:0}h1{margin-bottom:20px;font-family:"Songti SC","SimSun",serif;font-size:clamp(43px,6vw,68px);line-height:1.15;letter-spacing:-.035em}.brush{position:relative;color:var(--blue)}.brush:after{content:"";position:absolute;left:-3px;right:-8px;bottom:3px;height:10px;background:linear-gradient(90deg,rgba(45,110,160,.18),rgba(45,110,160,.04));transform:skewX(-14deg);z-index:-1}.lead{max-width:610px;margin-bottom:28px;color:var(--gray);font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}.requirements{display:flex;flex-wrap:wrap;gap:0;margin:0;padding:0;color:#72797c;list-style:none;font-size:12px}.requirements li{padding:0 11px;border-right:1px solid var(--line)}.requirements li:first-child{padding-left:0}.requirements li:last-child{border:0}
.ink-frame{position:relative;padding:12px;background:#fff;box-shadow:var(--shadow)}.ink-frame:before{content:"";position:absolute;right:-22px;top:-22px;width:92px;height:92px;border-top:2px solid var(--blue);border-right:2px solid var(--blue);z-index:-1}.ink-frame>img{min-height:390px;object-fit:cover;filter:saturate(.78);background:#e8e8e3}.memo{position:absolute;left:-34px;bottom:25px;width:255px;padding:17px;border-left:3px solid var(--red);background:rgba(255,255,255,.96);box-shadow:0 15px 40px rgba(40,44,43,.12)}.memo small{display:block;margin-bottom:5px;color:var(--red);font-weight:900;letter-spacing:.12em}.memo strong{display:block;margin-bottom:4px;font-family:"Songti SC","SimSun",serif;font-size:17px}.memo p{margin:0;color:var(--gray);font-size:12px}
section{padding:88px 0}.white{background:#fff}.dark{color:#fff;background:radial-gradient(ellipse at 14% 18%,rgba(99,167,195,.2),transparent 28%),linear-gradient(135deg,#202b31,#294d60)}.section-head{max-width:740px;margin:0 auto 42px;text-align:center}.section-head.left{margin-left:0;text-align:left}.chapter{display:block;margin-bottom:8px;color:var(--blue);font-family:Georgia,serif;font-size:12px;letter-spacing:.16em}.dark .chapter{color:#9fd0df}.section-head h2{margin-bottom:12px;font-family:"Songti SC","SimSun",serif;font-size:clamp(31px,4vw,44px);line-height:1.25}.section-head p{margin:0;color:var(--gray);font-size:15px}.dark .section-head p{color:#c3d0d4}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.card{border:1px solid var(--line);background:#fff}.download-card{display:flex;min-height:290px;padding:24px;flex-direction:column;justify-content:space-between;transition:.2s ease}.download-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.os-icon,.feature-icon{width:49px;height:49px;display:grid;place-items:center;margin-bottom:17px;color:#fff;background:var(--ink);font-family:Georgia,serif;font-size:19px;font-weight:900}.download-card:nth-child(even) .os-icon{background:var(--blue)}.download-card h3{margin-bottom:7px;font-family:"Songti SC","SimSun",serif;font-size:21px}.meta{display:grid;gap:5px;margin-bottom:19px;color:var(--gray);font-size:12px}.feature-card{min-height:222px;padding:22px}.feature-card h3{margin-bottom:8px;font-family:"Songti SC","SimSun",serif;font-size:19px}.feature-card p{margin:0;color:var(--gray);font-size:13px}.feature-icon{background:var(--blue);font-family:inherit;font-size:16px}
.solution{display:grid;grid-template-columns:.9fr 1.1fr;gap:58px;align-items:center}.solution-copy h2{margin-bottom:17px;font-family:"Songti SC","SimSun",serif;font-size:clamp(33px,4vw,48px);line-height:1.23}.solution-copy p{color:var(--gray)}.points{display:grid;gap:0;margin-top:23px;border-top:1px solid var(--line)}.point{display:grid;grid-template-columns:38px 1fr;gap:8px;padding:14px 0;border-bottom:1px solid var(--line)}.point b{color:var(--red);font-family:"Songti SC","SimSun",serif}.product{padding:12px;background:#fff;box-shadow:var(--shadow)}.product>img{min-height:350px;object-fit:cover;filter:saturate(.82);background:#e8e8e3}.thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}.thumbs img{aspect-ratio:4/3;object-fit:cover;filter:saturate(.78);background:#e8e8e3}
.trust-num{margin-bottom:32px;text-align:center;font-family:Georgia,serif;font-size:clamp(48px,8vw,82px);line-height:1;letter-spacing:-.04em}.brands{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.2)}.brands div{display:grid;min-height:90px;place-items:center;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);font-size:18px;font-weight:800}
.content{display:grid;grid-template-columns:1.05fr .95fr;gap:26px}.news,.faqs{display:grid;gap:12px}.news-item{display:grid;grid-template-columns:124px 1fr;gap:18px;padding:13px;align-items:center}.news-item img{width:124px;height:94px;object-fit:cover;filter:saturate(.72);background:#e8e8e3}.news-item small{color:var(--blue);font-weight:800;letter-spacing:.08em}.news-item h3{margin:3px 0 4px;font-family:"Songti SC","SimSun",serif;font-size:18px}.news-item p,.faq p{margin:0;color:var(--gray);font-size:12px}.faq{padding:17px 19px}.faq h3{margin-bottom:5px;font-family:"Songti SC","SimSun",serif;font-size:17px}
.cta-section{padding-top:0}.cta{position:relative;overflow:hidden;padding:52px;color:#fff;background:linear-gradient(135deg,#26343b,#315e72)}.cta:after{content:"";position:absolute;right:-55px;top:-85px;width:230px;height:230px;border:1px solid rgba(255,255,255,.22);border-radius:50%}.cta h2{max-width:760px;margin-bottom:13px;font-family:"Songti SC","SimSun",serif;font-size:clamp(32px,4vw,47px);line-height:1.22}.cta>p{max-width:760px;color:#c9d6da}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:25px 0;border-top:1px solid rgba(255,255,255,.22);border-left:1px solid rgba(255,255,255,.22)}.benefits div{padding:15px;border-right:1px solid rgba(255,255,255,.22);border-bottom:1px solid rgba(255,255,255,.22)}
.page-hero{padding:78px 0 58px;text-align:center;background:radial-gradient(ellipse at 50% 0,rgba(45,110,160,.12),transparent 43%),var(--paper)}.page-hero h1{margin-bottom:12px;font-size:clamp(38px,5vw,57px)}.page-hero p{max-width:720px;margin:0 auto;color:var(--gray);font-size:16px}.breadcrumb{margin-bottom:13px;color:var(--blue);font-size:12px;font-weight:800}.download-detail{display:grid;grid-template-columns:1fr 1fr;gap:18px}.download-box{padding:28px;scroll-margin-top:95px}.download-box h2{margin-bottom:7px;font-family:"Songti SC","SimSun",serif;font-size:27px}.download-box>p{color:var(--gray)}.detail-meta{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:20px 0;background:var(--line)}.detail-meta div{padding:12px;background:var(--paper);color:var(--gray);font-size:12px}.notice{margin-top:22px;padding:18px;border-left:3px solid var(--red);background:#fff;color:#596166}
.help-layout{display:grid;grid-template-columns:250px 1fr;gap:30px;align-items:start}.help-menu{position:sticky;top:96px;padding:16px}.help-menu a{display:block;padding:11px 12px;border-bottom:1px solid var(--line);color:#596166;font-size:13px}.help-menu a:hover{color:var(--blue)}.help-content{display:grid;gap:16px}.help-block{padding:27px;scroll-margin-top:96px}.help-block h2{margin-bottom:9px;font-family:"Songti SC","SimSun",serif;font-size:25px}.help-block p,.help-block li{color:var(--gray)}.help-block ol,.help-block ul{margin-bottom:0;padding-left:22px}.search{display:flex;max-width:600px;margin:25px auto 0;padding:6px;border:1px solid var(--line);background:#fff}.search input{min-width:0;flex:1;padding:9px 12px;border:0;outline:0;color:var(--ink)}
.footer{padding:30px 0;border-top:1px solid var(--line);color:#777d80;background:var(--paper);font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:20px;flex-wrap:wrap}
@media(max-width:1024px){.hero-grid,.solution,.content{grid-template-columns:1fr}.grid-4,.grid-5{grid-template-columns:repeat(2,1fr)}.brands{grid-template-columns:repeat(3,1fr)}.nav-links{display:none}.memo{left:12px}}
@media(max-width:720px){.container{width:min(100% - 28px,1160px)}.nav-actions .btn-line{display:none}.hero{padding:60px 0}section{padding:60px 0}.grid-4,.grid-5,.brands,.benefits,.download-detail{grid-template-columns:1fr}.help-layout{grid-template-columns:1fr}.help-menu{position:static}.hero-actions .btn,.download-card .btn{width:100%}.requirements li{width:100%;padding:3px 0;border:0}.ink-frame>img{min-height:250px}.memo{position:static;width:100%;margin-top:10px}.news-item{grid-template-columns:1fr}.news-item img{width:100%;height:170px}.cta{padding:34px 23px}.thumbs{grid-template-columns:1fr}.detail-meta{grid-template-columns:1fr}}