@font-face{font-family:EchoBay Sans;src:local(Segoe UI),local(PingFang SC),local(Microsoft YaHei);font-display:swap}:root{color-scheme:light;--bg:#f6faf7;--bg-strong:#e9f2ed;--surface:#fbfdfb;--surface-muted:#edf5f1;--ink:#1b393b;--ink-strong:#0d3033;--muted:#536c6b;--line:#c9dbd4;--sea:#4d9f98;--sea-strong:#1f6f6c;--forest:#557d61;--sun:#f1ca72;--sun-strong:#d8ac4b;--section-soft:#eaf4ef;--feature-island:#d1e7dd;--feature-voice:#cfe7e5;--feature-bubble:#e7ecda;--feature-build:#f0e4bd;--feature-ink:#17383a;--download-bg:#0f3b3b;--download-ink:#f3faf6;--download-muted:#b9d0c8;--download-card:#eaf5ef;--download-card-alt:#eef1d8;--control:#123b3f;--control-ink:#f6fbf8;--header:#f8fbf9cc;--hero-ink:#0e3337;--hero-muted:#345458;--hero-shadow:#ffffff8c;--focus:#1f6f6c}:root[data-theme=dark]{color-scheme:dark;--bg:#0f2426;--bg-strong:#153134;--surface:#18383a;--surface-muted:#204345;--ink:#e9f4ef;--ink-strong:#fbfffd;--muted:#b6cac3;--line:#365955;--sea:#70c5ba;--sea-strong:#9addd2;--forest:#89b58e;--sun:#f0d187;--sun-strong:#f5dda0;--section-soft:#142e30;--feature-island:#c7e1d5;--feature-voice:#c7e2e1;--feature-bubble:#e2e8d4;--feature-build:#eadfb8;--feature-ink:#17383a;--download-bg:#092f32;--download-ink:#f4faf7;--download-muted:#b4ccc4;--download-card:#e4f1ea;--download-card-alt:#e9edda;--control:#123b3f;--control-ink:#f6fbf8;--header:#0f2426d6;--focus:#f0d187}:root[data-daypart=dusk],:root[data-daypart=night]{--hero-ink:#f7fbfa;--hero-muted:#e4eeeb;--hero-shadow:#0000007a}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:84px}body{background:var(--bg);min-width:320px;color:var(--ink);letter-spacing:0;text-rendering:optimizelegibility;margin:0;font-family:EchoBay 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transparent);background:var(--header);backdrop-filter:blur(18px)saturate(1.16);border-radius:8px;box-shadow:0 16px 38px #112c331a}.site-header>.brand{min-height:54px;padding:6px 15px 6px 7px}.brand{white-space:nowrap;align-items:center;gap:9px;min-width:0;font-size:16px;display:inline-flex}.brand-mark{background:var(--control);color:#fff;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;display:inline-grid}.desktop-nav{min-height:54px;color:var(--muted);justify-content:center;align-items:center;gap:2px;padding:5px;font-size:14px;display:flex}.desktop-nav a{border-radius:5px;align-items:center;min-height:42px;padding:0 14px;display:inline-flex}.desktop-nav a,.footer-links a{transition:color .16s}.desktop-nav a:hover,.footer-links a:hover{color:var(--ink-strong)}.desktop-nav a:hover{background:color-mix(in srgb, var(--surface) 64%, transparent)}.header-actions{align-items:center;gap:6px;min-height:54px;padding:5px;display:flex}.icon-button,.app-button,.primary-action,.secondary-action,.platform-download,.web-entry a{cursor:pointer;border:0;border-radius:6px;justify-content:center;align-items:center;gap:9px;min-height:52px;transition:background-color .18s,border-color .18s,color .18s,transform .18s,box-shadow .18s;display:inline-flex}.icon-button{background:0 0;width:42px;min-height:42px;padding:0}.icon-button:hover{background:var(--surface-muted)}.language-button{width:auto;padding:0 10px;font-size:13px}.app-button{background:var(--control);min-height:42px;color:var(--control-ink);padding:0 16px;font-size:14px;font-weight:700}.app-button svg,.secondary-action svg,.web-entry a svg{border:1px solid;border-radius:50%;width:28px;height:28px;margin-left:4px;padding:7px;transition:transform .18s}.app-button svg{border-color:#ffffff57;width:26px;height:26px}.app-button:hover,.primary-action:hover,.platform-download:not([aria-disabled=true]):hover{transform:translateY(-2px)}.app-button:hover{box-shadow:0 10px 22px #0c272f33}.app-button:hover svg,.secondary-action:hover svg,.web-entry a:hover svg{transform:translate(2px)}.theme-icon-dark,:root[data-theme=dark] .theme-icon-light{display:none}:root[data-theme=dark] .theme-icon-dark{display:block}.menu-button,.mobile-menu{display:none}.hero{isolation:isolate;align-items:center;height:min(940px,94svh);min-height:760px;display:grid;position:relative;overflow:hidden}.hero-media{z-index:-2;background-color:#9bd2cc;position:absolute;inset:0;overflow:hidden}.hero-water,.hero-island{background-position:50%;background-repeat:no-repeat;background-size:cover;position:absolute}.hero-daypart{z-index:0;opacity:0;pointer-events:none;will-change:opacity;transition:opacity 1.6s cubic-bezier(.22,1,.36,1);position:absolute;inset:0}:root[data-daypart=dawn] .hero-daypart[data-hero-daypart=dawn],:root[data-daypart=day] .hero-daypart[data-hero-daypart=day],:root[data-daypart=dusk] .hero-daypart[data-hero-daypart=dusk],:root[data-daypart=night] .hero-daypart[data-hero-daypart=night]{z-index:2;opacity:1}.hero-water{will-change:transform;inset:-4%}.hero-water-primary{z-index:0;animation:13s ease-in-out infinite alternate echobay-water-drift}.hero-water-secondary{z-index:1;opacity:.13;clip-path:polygon(0 34%,100% 28%,100% 100%,0 100%);mix-blend-mode:soft-light;animation:19s ease-in-out infinite alternate-reverse echobay-water-undertow}.hero-daypart .hero-water{animation-play-state:paused}:root[data-daypart=dawn] .hero-daypart[data-hero-daypart=dawn] .hero-water,:root[data-daypart=day] .hero-daypart[data-hero-daypart=day] .hero-water,:root[data-daypart=dusk] .hero-daypart[data-hero-daypart=dusk] .hero-water,:root[data-daypart=night] .hero-daypart[data-hero-daypart=night] 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type("image/webp"))}:is(:root[data-daypart=night],:root[data-hero-assets=ready]) .hero-daypart[data-hero-daypart=night] .hero-island{background-image:var(--island-night-webp);background-image:image-set(var(--island-night-avif) type("image/avif"), var(--island-night-webp) type("image/webp"))}@keyframes echobay-water-drift{0%{transform:translate(-.9%,.3%)scale(1.045)}48%{transform:translate(.35%,-.35%)scale(1.055)}to{transform:translate(1.05%,.2%)scale(1.047)}}@keyframes echobay-water-undertow{0%{opacity:.08;transform:translate(.8%,-.2%)scale(1.052)}55%{opacity:.14;transform:translate(-.2%,.35%)scale(1.06)}to{opacity:.1;transform:translate(-.9%,-.15%)scale(1.05)}}.hero:after{content:"";z-index:-1;pointer-events:none;background:#ffffff0a;position:absolute;inset:0}:root[data-daypart=night] .hero:after{background:#020f1a14}.hero-copy{width:min(1240px,100% - 48px);color:var(--hero-ink);margin:78px auto 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12px;font-size:14px}.platform-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;margin-top:22px;display:grid}.platform-card{background:var(--download-card);color:#15343a;border:1px solid #ffffff6b;border-radius:8px;align-content:start;min-width:0;min-height:360px;padding:38px;display:grid;position:relative;box-shadow:0 28px 70px #03181c2e}.platform-card:before{content:"01";color:#15343a59;font-size:12px;font-weight:800;position:absolute;top:22px;right:24px}.platform-card.android-card:before{content:"02"}:root[data-platform=windows] .platform-card[data-platform-card=windows],:root[data-platform=android] .platform-card[data-platform-card=android]{box-shadow:inset 0 4px 0 var(--sun), 0 28px 70px #03181c2e;border-color:#9fd1c3}.platform-title{align-items:center;gap:15px;display:flex}.platform-title h3{color:#15343a;margin:0;font-size:28px}.platform-title p{color:#455d5f;margin:2px 0 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