:root{--green:#06c755;--deep:#123f2d;--ink:#172923;--muted:#52665b;--border:#dbe8df;--pale:#eff8f2;--soft:#f5f7f5;--shadow:0 12px 32px rgba(10,58,32,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}body{margin:0;background:#fff;color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.23;letter-spacing:0}p+p{margin-top:15px}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:4px}.shell{width:min(1200px,calc(100% - 64px));margin:auto}.skip{position:fixed;z-index:100;top:-100px;left:15px;padding:10px;background:white}.skip:focus{top:10px}.topbar{height:72px;background:#fff;position:sticky;top:0;z-index:30;border-bottom:1px solid var(--border)}.topbar-inner{height:100%;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:820;line-height:1.05;flex:none}.brand-logo{width:36px;height:36px;display:block;flex:none}.brand-detail{font-size:10px;font-weight:650;display:block;color:#728377;margin-top:4px}.topbar nav{display:flex;align-items:center;gap:30px;margin-left:auto;font-size:14px;font-weight:620}.topbar nav a:hover,.footer a:hover{color:#008b41}.top-download{background:var(--deep);color:#fff;border-radius:6px;padding:8px 17px;font-size:14px;font-weight:670;white-space:nowrap}.top-download:hover{background:#286b45}.menu-button{display:none;border:1px solid var(--border);background:#fff;border-radius:6px;width:40px;height:40px}.hero{height:min(690px,78vh);min-height:475px;max-height:690px;position:relative;background:#324b3b;overflow:hidden}.hero-photo,.hero-shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-photo{object-position:54% 45%}.hero-shade{background:linear-gradient(90deg,rgba(8,30,22,.92) 0%,rgba(8,30,22,.73) 40%,rgba(8,30,22,.1) 90%)}.hero-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;height:100%;color:#fff}.hero-label{font-size:13px;font-weight:650;color:#ace9b9}.hero h1{font-size:clamp(36px,4.6vw,64px);line-height:1.16;max-width:760px;margin:20px 0 21px;font-weight:780}.hero-inner>p:not(.hero-label){max-width:525px;font-size:18px;line-height:1.65;color:#ebf5ef}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:33px}.button{border-radius:6px;min-height:47px;padding:10px 23px;font-weight:700;display:inline-flex;align-items:center;gap:13px;justify-content:center}.button-green{background:var(--green);color:#103524}.button-light{background:#fff;color:var(--deep)}.button:hover{filter:brightness(.94)}.channel-bar{border-bottom:1px solid var(--border);background:#fff}.channel-bar>.shell{display:flex;align-items:center;gap:42px;flex-wrap:wrap;min-height:68px;font-size:14px}.channel-bar span{color:var(--muted)}.channel-bar a{font-weight:700}.channel-bar a:hover,.text-link:hover,.action-link:hover{color:#049347}.section{padding:78px 0}.section-heading{margin-bottom:29px}.section-heading h2{font-size:clamp(27px,3vw,38px);margin-top:6px}.section-heading p{color:var(--muted);max-width:720px;margin-top:11px}.kicker{color:#048f42;font-size:12px;font-weight:800;letter-spacing:1.1px;display:block}.download-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.download-card{border-top:2px solid var(--deep);border-bottom:1px solid var(--border);padding:24px 12px 22px 0;display:flex;flex-direction:column;min-width:0;scroll-margin-top:110px}.platform-visual{background:var(--pale);color:var(--deep);width:43px;height:43px;display:grid;place-items:center;border-radius:6px;font-size:23px;margin-bottom:19px}.platform-ios,.platform-macos{background:#e8eff5;color:#315f7a}.platform-windows{background:#e7f5f2;color:#197474}.download-card h3{font-size:21px}.download-card p{color:var(--muted);font-size:14px;margin:10px 0 18px;flex:1}.action-link{font-weight:750;font-size:14px;color:#08693a}.context-note{color:#5c6d63;font-size:13px;margin-top:24px}.band{background:#e9f3ec}.band-inner{display:grid;grid-template-columns:1fr .83fr;gap:8%;align-items:center}.band-inner h2{font-size:clamp(28px,3vw,39px);margin:10px 0 20px;max-width:560px}.band-inner p{max-width:535px;color:var(--muted);margin-bottom:24px}.band-photo{aspect-ratio:4/3;overflow:hidden}.band-photo img{width:100%;height:100%;object-fit:cover;object-position:center}.text-link{font-weight:760;color:#087543;font-size:14px}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}.article-card{border:1px solid var(--border);background:#fff;min-width:0;display:flex;flex-direction:column}.article-card:hover{box-shadow:var(--shadow)}.article-card[hidden]{display:none}.card-image{display:block;aspect-ratio:820/470;overflow:hidden;background:#e7f3ed}.card-image img{height:100%;width:100%;object-fit:cover}.card-content{padding:20px;display:flex;flex-direction:column;flex:1}.card-content small{color:#087543;font-weight:760;font-size:12px}.card-content h3{font-size:19px;line-height:1.43;margin:8px 0 11px}.card-content p{font-size:13px;line-height:1.75;color:var(--muted);margin-bottom:20px;flex:1}.more{display:inline-block;margin-top:25px}.faq-band{background:#f5f7f5}.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.faq-grid details,.faq-list details{border-top:1px solid #c6d9cc;padding:17px 0}.faq-grid summary,.faq-list summary{font-weight:750;cursor:pointer}.faq-grid details p,.faq-list details p{font-size:14px;color:var(--muted);margin-top:12px}.page-intro{padding:66px 0 45px;border-bottom:1px solid var(--border)}.page-intro h1,.article-intro h1{font-size:clamp(30px,4vw,48px);max-width:950px;margin:12px 0}.page-intro p,.article-intro p{font-size:17px;max-width:800px;color:var(--muted)}.compact{padding-top:48px}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.steps a{border-top:2px solid #136e40;padding:22px 0;display:flex;gap:11px;flex-direction:column}.steps b{font-size:14px;color:#087543}.steps strong{font-size:22px}.steps span{font-size:13px;color:var(--muted)}.steps a:hover strong{color:#078d48}.guide-tools{display:flex;align-items:center;gap:12px;margin-bottom:25px;font-weight:650}.guide-tools input{border:1px solid #bcd3c2;padding:9px 13px;border-radius:5px;min-width:0;width:min(370px,100%)}.guide-tools span{margin-left:auto;font-size:13px;color:var(--muted)}.no-results{padding:30px;color:var(--muted)}.article-intro{padding:40px 0 33px;border-bottom:1px solid var(--border)}.article-intro .back-link{display:block;margin-bottom:32px;font-size:14px;color:#087543}.article-intro small{display:block;margin-top:20px;color:#63776a}.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(0,270px);justify-content:space-between;gap:65px;padding-top:48px;padding-bottom:80px}.article-text{min-width:0}.article-lead{font-size:20px;line-height:1.8;font-weight:580;margin-bottom:42px!important}.article-text section{margin-bottom:45px;scroll-margin-top:96px}.article-text section>h2{font-size:25px;margin:9px 0 16px}.article-text section>p{color:#3a4e42;line-height:1.95;font-size:16px}.step-tag{font-size:12px;font-weight:800;color:#078e44}.tutorial-figure{background:#f0f7f3;margin:28px 0 0}.tutorial-figure img{width:100%;height:auto}.tutorial-figure figcaption{font-size:12px;color:#637368;padding:11px 15px}.article-aside{min-width:0}.aside-sticky{position:sticky;top:108px;border-top:3px solid var(--green);padding-top:17px}.aside-sticky h2{font-size:16px;margin-bottom:13px}.aside-sticky a{display:block;font-size:13px;padding:8px 0;color:#4e6555;border-bottom:1px solid var(--border)}.aside-sticky a:hover{color:#087543}.aside-sticky .aside-download{color:#087543;font-weight:730;margin-top:10px}.sources{border-top:1px solid var(--border);padding-top:25px}.sources ul{padding-left:20px}.sources a{color:#087543;text-decoration:underline;overflow-wrap:anywhere}.post-note{padding:15px;background:#f2f7f3;font-size:13px!important}.post-navigation{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--border);margin-top:28px;padding-top:18px;color:#087543;font-weight:750}.faq-list{max-width:900px}.prose{max-width:900px}.prose h2{font-size:24px;margin:23px 0 12px}.prose p{color:#41564a}.prose a{color:#087543;text-decoration:underline}.error{min-height:56vh}.error h1{font-size:42px;margin:18px 0}.error a{margin-top:18px}.footer{background:#153927;color:#eaf4ed;padding:55px 0}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer strong{font-size:20px}.footer p{max-width:480px;margin-top:10px;font-size:14px}.footer .legal{font-size:12px;color:#bfd5c4}.footer-links{display:grid;grid-template-columns:repeat(2,max-content);gap:10px 28px;font-size:13px}.footer a:hover{color:#8deeab}@media(max-width:1050px){.topbar nav{gap:16px}.channel-bar>.shell{gap:18px}.article-layout{gap:35px}.download-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:760px){.shell{width:min(100% - 36px,1200px)}.topbar{height:62px}.topbar nav{position:absolute;left:0;right:0;top:62px;display:none;background:#fff;padding:15px 18px 22px;border-bottom:1px solid var(--border);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.topbar nav.is-open{display:flex}.topbar nav a{padding:10px 0}.top-download{margin-left:auto;font-size:12px;padding:7px 10px}.menu-button{display:block;flex:none}.hero{height:560px;min-height:0}.hero-photo{object-position:60% center}.hero-shade{background:linear-gradient(90deg,rgba(8,30,22,.92),rgba(8,30,22,.48))}.hero h1{font-size:38px}.hero-inner>p:not(.hero-label){font-size:15px}.hero-actions{gap:8px}.channel-bar>.shell{padding:14px 0;gap:10px 18px}.channel-bar span{width:100%}.section{padding:55px 0}.band-inner,.article-layout{grid-template-columns:1fr}.band-photo{margin-top:25px;aspect-ratio:16/10}.article-grid,.faq-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.article-aside{display:none}.article-intro{padding-top:30px}.page-intro{padding:45px 0 33px}}@media(max-width:520px){.shell{width:calc(100% - 32px)}.brand{font-size:18px}.brand-detail{font-size:9px}.brand-logo{width:30px;height:30px;display:block;flex:none}.top-download{font-size:11px;padding:6px 8px}.hero{height:515px}.hero h1{font-size:36px}.hero-inner{justify-content:flex-end;padding-bottom:56px}.hero-photo{object-position:66% center}.hero-shade{background:linear-gradient(0deg,rgba(8,30,22,.96),rgba(8,30,22,.34))}.hero-actions{margin-top:25px}.button{padding:10px 14px;font-size:13px}.channel-bar>.shell{font-size:12px}.section-heading h2{font-size:27px}.download-grid,.article-grid,.faq-grid,.steps{grid-template-columns:1fr}.download-card{padding:16px 0}.download-card p{margin-bottom:12px}.article-intro h1,.page-intro h1{font-size:30px}.article-text section>h2{font-size:23px}.guide-tools{flex-wrap:wrap}.guide-tools input{width:100%;order:3}.guide-tools span{margin-left:auto}.footer-inner{display:block}.footer-links{margin-top:25px}.post-navigation{font-size:12px}}