:root{--bg:#f5faf8;--surface:#fff;--ink:#133d32;--muted:#50665e;--accent:#087f68;--accent-deep:#086553;--soft:#e7f3ed;--line:#d7e5de;--radius:24px;--shadow:0 16px 48px rgba(17,61,50,.06)}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a,summary{touch-action:manipulation}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.skip-link{position:fixed;top:-80px;left:20px;z-index:100;background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px}.skip-link:focus{top:10px}.site-header{max-width:1080px;margin:auto;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;min-height:48px}.brand img{object-fit:contain;width:144px;height:48px}.site-link{display:flex;align-items:center;gap:8px;font-size:14px;min-height:44px;color:var(--muted);font-weight:600}.site-link svg{width:19px;height:19px}main{max-width:1032px;margin:auto;padding:28px 24px 0}.hero{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;padding:24px 0 36px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:40px;padding:7px 13px;font-size:13px;font-weight:600;color:var(--accent-deep);background:var(--surface)}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}h1{font-size:clamp(38px,7vw,60px);line-height:1.22;font-weight:800;letter-spacing:-1.6px;margin:24px 0 20px;text-wrap:balance}h1 span{color:var(--accent)}.intro{font-size:16px;color:var(--muted);margin:0 0 22px;line-height:1.85}.desktop-break{display:none}.feature-line{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:12px;color:var(--muted)}.feature-line span{display:inline-flex;align-items:center;gap:5px}.feature-line svg{width:16px;height:16px;stroke-width:1.7}.app-display{display:none;position:relative;align-items:center;flex-direction:column;padding:38px;background:radial-gradient(ellipse at 50% 30%,#e4f3eb 0,transparent 70%);min-height:300px}.icon-halo{padding:14px;background:#ffffffb3;border:1px solid #ffffff;border-radius:42px;box-shadow:0 18px 48px #133d3210;transform:rotate(-6deg)}.icon-halo img{display:block;border-radius:28px}.app-display-name{margin-top:22px;font-size:20px;font-weight:750}.app-display-caption{font-size:13px;color:var(--muted)}.display-badge{margin-top:16px;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;padding:6px 14px;border-radius:50px;font-size:12px}.downloads{display:grid;gap:18px}.download-card{min-width:0;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card-heading{display:flex;align-items:center;gap:13px;margin-bottom:24px}.platform-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:var(--soft);color:var(--accent);flex-shrink:0}.platform-icon svg{width:26px;height:26px}.card-heading h2{font-size:18px;line-height:1.4;margin:0 0 4px;font-weight:750}.card-heading p{margin:0;font-size:13px;color:var(--muted)}.recommendation{position:absolute;right:22px;top:-11px;font-size:11px;background:var(--ink);color:#fff;border-radius:30px;padding:3px 10px;white-space:nowrap}.release-meta{display:flex;justify-content:space-between;gap:12px;margin:0 0 25px}.release-meta div{min-width:0}.release-meta dt{font-size:12px;color:var(--muted);margin-bottom:4px}.release-meta dd{font-size:14px;font-weight:650;margin:0;font-variant-numeric:tabular-nums}.button{width:100%;min-height:52px;display:flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;border:1px solid transparent;font-size:16px;font-weight:650;transition:background .18s,transform .18s}.button:hover{transform:translateY(-1px)}.button:active{transform:translateY(1px)}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-deep)}.secondary{background:var(--soft);border-color:#c5dfd2;color:var(--accent-deep)}.secondary:hover{background:#daeede}.button svg{width:21px;height:21px}.card-note{font-size:12px;color:var(--muted);margin:13px 0 4px;text-align:center}.text-button{display:block;min-height:44px;margin:0 auto;background:none;border:0;color:var(--accent-deep);font-size:13px;font-weight:600;padding:9px 6px}.text-button span{margin-left:7px}.ios-summary{padding:0;margin:0 0 25px;list-style:none;min-height:59px;font-size:13px;color:var(--muted)}.ios-summary li{display:flex;align-items:center;gap:8px;line-height:1.8}.ios-summary li+li{margin-top:8px}.ios-summary span{background:var(--soft);color:var(--accent-deep);width:20px;height:20px;display:grid;place-items:center;border-radius:50%;font-size:11px;font-weight:700}.browser-tip{font-size:13px;border:1px solid #d4c78e;background:#fffbea;padding:14px 18px;border-radius:12px;color:#6a592b;margin:18px 0 0}.questions{margin:44px 0 0;max-width:780px}.questions h2{font-size:16px;margin:0 0 14px}.questions details{border-bottom:1px solid var(--line);padding:0}.questions summary{padding:17px 30px 17px 0;cursor:pointer;list-style:none;position:relative;font-size:14px;font-weight:600}.questions summary::-webkit-details-marker{display:none}.questions summary:after{content:'+';position:absolute;right:2px;top:13px;font-size:22px;font-weight:400;color:var(--muted)}.questions details[open] summary:after{content:'−'}.questions details p{font-size:14px;color:var(--muted);margin:0 0 16px}.integrity code{display:block;overflow-wrap:anywhere;font-size:12px;color:var(--muted);margin-bottom:12px}.checksum-link{display:inline-flex;align-items:center;min-height:44px;color:var(--accent-deep);font-size:13px}.questions details[open]{padding-bottom:3px}footer{max-width:1080px;margin:44px auto 0;padding:24px 24px max(28px,env(safe-area-inset-bottom));border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 20px;color:var(--muted);font-size:12px}footer p{margin:0}footer a{min-height:40px;display:flex;align-items:center}dialog{max-width:480px;width:calc(100% - 32px);max-height:calc(100dvh - 40px);border:1px solid var(--line);border-radius:24px;padding:24px;color:var(--ink);background:var(--surface);box-shadow:0 24px 100px #0002;overflow-y:auto}dialog::backdrop{background:rgba(6,28,21,.58)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.dialog-heading h2{font-size:20px;margin:0;line-height:1.4}.close-button{display:grid;place-items:center;border:0;background:var(--soft);color:var(--ink);width:44px;height:44px;min-width:44px;border-radius:50%}.close-button svg{width:20px;height:20px}.install-steps{padding:0;list-style:none;counter-reset:step;margin:24px 0}.install-steps li{position:relative;padding-left:38px;margin-bottom:20px;counter-increment:step}.install-steps li:before{content:counter(step);position:absolute;left:0;top:0;background:var(--soft);color:var(--accent-deep);display:grid;place-items:center;width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:700}.install-steps strong{display:block;font-size:15px;margin-bottom:5px}.install-steps p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}.install-steps a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px}.dialog-tip{font-size:12px;text-align:center;line-height:1.6;color:var(--muted);margin:14px 0 0}[hidden]{display:none!important}
@media(min-width:720px){main{padding-top:30px}.hero{grid-template-columns:1.45fr 1fr;gap:40px;padding:22px 0 44px}.app-display{display:flex}.desktop-break{display:inline}.downloads{grid-template-columns:1fr 1fr;gap:24px}.download-card{padding:28px}.feature-line{font-size:13px}.intro{font-size:17px}.questions{margin-top:48px}.site-header{padding-top:28px;padding-bottom:14px}.card-heading h2{font-size:19px}}
@media(max-width:360px){.site-header,main{padding-left:18px;padding-right:18px}.download-card{padding:21px 18px}.card-heading{gap:10px}.card-heading h2{font-size:17px}.feature-line{gap:10px 12px}.brand img{width:126px;height:42px}.site-link{font-size:12px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}