:root{--green:#168b62;--green2:#52c98f;--leaf:#e9f6ef;--paper:#fbfcf8;--ink:#19352b;--muted:#687970;--line:#dce8df;--white:#fff;--blue:#2774e8;--shadow:0 20px 55px rgba(35,83,63,.11)}
*{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:1.7;background:var(--paper)}a{color:inherit;text-decoration:none}img{display:block;width:100%;height:auto}.container{width:min(1200px,calc(100% - 40px));margin:auto}button,input{font:inherit}.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(251,252,248,.92);backdrop-filter:blur(16px)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:flex;align-items:center;gap:10px;color:var(--green);font-size:21px;font-weight:900}.logo-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:50% 50% 50% 12px;color:#fff;background:linear-gradient(135deg,var(--green),var(--green2));box-shadow:0 11px 28px rgba(22,139,98,.22)}.nav-links{display:flex;gap:23px;color:#5a6f64;font-size:13px}.nav-links a:hover,.inline-link{color:var(--green)}.nav-actions{display:flex;gap:9px}.btn{display:inline-flex;min-height:46px;padding:0 23px;align-items:center;justify-content:center;border:1px solid transparent;border-radius:9px;font-weight:800;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn-primary{color:#fff;background:var(--green);box-shadow:0 12px 28px rgba(22,139,98,.21)}.btn-outline{color:var(--green);border-color:#bddaca;background:#fff}.btn-white{color:var(--green);background:#fff}
.hero{position:relative;overflow:hidden;padding:90px 0 82px;background:radial-gradient(circle at 83% 20%,rgba(82,201,143,.2),transparent 31%),linear-gradient(135deg,#f3faf5,#fffdf8)}.hero:before{content:"";position:absolute;right:-100px;bottom:-260px;width:580px;height:580px;border:1px solid rgba(22,139,98,.13);border-radius:50% 50% 8% 50%;transform:rotate(24deg)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}.tag{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:7px 12px;border:1px solid #cee5d7;border-radius:999px;color:var(--green);background:#fff;font-size:12px;font-weight:800}.tag:before{content:"";width:8px;height:8px;border-radius:50% 50% 50% 2px;background:var(--green2)}h1,h2,h3,p{margin-top:0}h1{margin-bottom:18px;font-size:clamp(42px,6vw,66px);line-height:1.07;letter-spacing:-.05em}.green{color:var(--green)}.lead{max-width:620px;margin-bottom:27px;color:var(--muted);font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:11px;margin-bottom:17px}.requirements{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;color:#718078;list-style:none;font-size:11px}.requirements li{padding:6px 9px;border:1px solid var(--line);border-radius:6px;background:#fff}.paper-stack{position:relative;padding:13px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}.paper-stack:before,.paper-stack:after{content:"";position:absolute;z-index:-1;inset:12px;border:1px solid var(--line);border-radius:16px;background:#fff;transform:rotate(3deg)}.paper-stack:after{transform:rotate(-3deg)}.paper-stack>img{min-height:370px;object-fit:cover;border-radius:9px;background:#edf5ef}.paper-badge{position:absolute;left:-22px;bottom:23px;width:280px;padding:16px;border-radius:10px;color:#fff;background:var(--green);box-shadow:0 18px 44px rgba(22,139,98,.25)}.paper-badge strong{display:block;font-size:18px}.paper-badge span{color:#d5f2e3;font-size:12px}
section{padding:82px 0}.soft{background:var(--leaf)}.section-head{max-width:770px;margin:0 auto 38px;text-align:center}.section-head.left{margin-left:0;text-align:left}.eyebrow{display:block;margin-bottom:8px;color:var(--green);font-size:11px;font-weight:900;letter-spacing:.14em}.section-head h2{margin-bottom:10px;font-size:clamp(30px,4vw,44px);line-height:1.22;letter-spacing:-.035em}.section-head p{margin:0;color:var(--muted)}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.card{border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 10px 32px rgba(35,83,63,.05)}.download-card{display:flex;min-height:285px;padding:22px;flex-direction:column;justify-content:space-between}.os-icon,.feature-icon{width:49px;height:49px;display:grid;place-items:center;margin-bottom:16px;border-radius:10px;color:#fff;background:var(--green);font-size:17px;font-weight:900}.download-card h3{margin-bottom:7px;font-size:20px}.meta{display:grid;gap:5px;margin-bottom:18px;color:var(--muted);font-size:12px}.feature-card{min-height:217px;padding:21px}.feature-card h3{margin-bottom:7px;font-size:18px}.feature-card p{margin:0;color:var(--muted);font-size:13px}.feature-icon{color:var(--green);background:#e6f6ee}
.paperless-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.paperless-card{padding:24px}.paperless-card b{display:inline-grid;width:38px;height:38px;margin-bottom:14px;place-items:center;border-radius:50% 50% 50% 8px;color:#fff;background:var(--green2)}.paperless-card h3{margin-bottom:7px}.paperless-card p{margin:0;color:var(--muted);font-size:13px}.solution{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:center}.solution-copy h2{margin-bottom:16px;font-size:clamp(32px,4vw,46px);line-height:1.2;letter-spacing:-.04em}.solution-copy p{color:var(--muted)}.points{display:grid;gap:9px;margin-top:21px}.point{display:flex;gap:11px;padding:13px 14px;border:1px solid var(--line);border-radius:8px;background:#fff}.check{color:var(--green);font-weight:900}.product{padding:10px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.product>img{min-height:330px;object-fit:cover;border-radius:8px;background:#edf5ef}.thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:9px}.thumbs img{aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);border-radius:7px;background:#edf5ef}
.trust{color:#fff;background:radial-gradient(circle at 15% 20%,rgba(82,201,143,.2),transparent 28%),linear-gradient(135deg,#123d30,#176746)}.trust .section-head p{color:#c7dfd4}.trust-num{margin-bottom:30px;text-align:center;font-size:clamp(50px,8vw,82px);line-height:1;font-weight:900;letter-spacing:-.05em}.brands{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.brands div{display:grid;min-height:86px;place-items:center;border:1px solid rgba(255,255,255,.18);border-radius:9px;background:rgba(255,255,255,.07);font-size:17px;font-weight:800}.content{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}.news,.faqs{display:grid;gap:12px}.news-item{display:grid;grid-template-columns:125px 1fr;gap:17px;padding:12px;align-items:center}.news-item img{width:125px;height:94px;object-fit:cover;border-radius:7px;background:#edf5ef}.news-item small{color:var(--green);font-weight:800}.news-item h3{margin:3px 0 4px;font-size:17px}.news-item p,.faq p{margin:0;color:var(--muted);font-size:12px}.faq{padding:17px 19px}.faq h3{margin-bottom:5px;font-size:16px}.cta-section{padding-top:0}.cta{padding:50px;color:#fff;border-radius:14px;background:linear-gradient(135deg,var(--green),#34a878);box-shadow:0 24px 65px rgba(22,139,98,.22)}.cta h2{max-width:760px;margin-bottom:10px;font-size:clamp(32px,4vw,46px);line-height:1.18}.cta>p{max-width:760px;color:#daf2e7}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:23px 0}.benefits div{padding:14px;border:1px solid rgba(255,255,255,.22);border-radius:7px;background:rgba(255,255,255,.09)}
.page-hero{padding:72px 0 54px;text-align:center;background:linear-gradient(135deg,#edf8f2,#fff)}.page-hero h1{margin-bottom:11px;font-size:clamp(38px,5vw,57px)}.page-hero p{max-width:720px;margin:auto;color:var(--muted)}.breadcrumb{margin-bottom:12px;color:var(--green);font-size:12px}.download-detail{display:grid;grid-template-columns:1fr 1fr;gap:17px}.download-box{padding:27px;scroll-margin-top:95px}.download-box h2{margin-bottom:7px;font-size:26px}.download-box>p{color:var(--muted)}.detail-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:20px 0}.detail-meta div{padding:11px;border:1px solid var(--line);border-radius:6px;color:var(--muted);font-size:12px}.notice{margin-top:20px;padding:17px;border-left:4px solid var(--green);border-radius:6px;background:#eaf7f0;color:#53675d}.help-layout{display:grid;grid-template-columns:250px 1fr;gap:28px;align-items:start}.help-menu{position:sticky;top:95px;padding:16px}.help-menu a{display:block;padding:10px 11px;border-bottom:1px solid var(--line);color:#62766b;font-size:13px}.help-menu a:hover{color:var(--green)}.help-content{display:grid;gap:14px}.help-block{padding:26px;scroll-margin-top:95px}.help-block h2{margin-bottom:9px;font-size:24px}.help-block p,.help-block li{color:var(--muted)}.help-block ol,.help-block ul{margin-bottom:0;padding-left:22px}.search{display:flex;max-width:600px;margin:24px auto 0;padding:5px;border:1px solid var(--line);border-radius:8px;background:#fff}.search input{min-width:0;flex:1;padding:9px 12px;border:0;outline:0;color:var(--ink)}.footer{padding:28px 0;color:#a9c2b6;background:#123d30;font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:18px;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)}.paperless-grid,.brands{grid-template-columns:repeat(3,1fr)}.nav-links{display:none}.paper-badge{left:12px}}
@media(max-width:720px){.container{width:min(100% - 28px,1200px)}.nav-actions .btn-outline{display:none}.hero{padding:58px 0}section{padding:58px 0}.grid-4,.grid-5,.paperless-grid,.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%}.paper-stack>img{min-height:250px}.paper-badge{position:static;width:100%;margin-top:10px}.news-item{grid-template-columns:1fr}.news-item img{width:100%;height:170px}.cta{padding:33px 22px}.thumbs{grid-template-columns:1fr}.detail-meta{grid-template-columns:1fr}}