@font-face{font-family:Common Source Han Serif;font-style:normal;font-weight:400;font-display:swap;size-adjust:100%;src:url(/fonts/CommonReaderSerif-400.woff2)format("woff2")}@font-face{font-family:Common Source Han Serif;font-style:normal;font-weight:500;font-display:swap;size-adjust:100%;src:url(/fonts/CommonReaderSerif-500.woff2)format("woff2")}@font-face{font-family:Common Source Han Serif;font-style:normal;font-weight:600;font-display:swap;size-adjust:100%;src:url(/fonts/CommonReaderSerif-600.woff2)format("woff2")}@font-face{font-family:Common Reader Brand;font-style:normal;font-weight:550;font-display:swap;size-adjust:100%;src:url(/fonts/CommonReaderBrand-550.woff2)format("woff2")}:root{color-scheme:light dark;--font-ui:ui-sans-serif, "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif:serif;--font-custom-serif:"Common Source Han Serif", "Times New Roman", Times, serif;--font-brand:"Common Reader Brand", "Times New Roman", Times, serif;--font-page-title-weight:500;--motion-hover-duration:.14s;--motion-hover-easing:ease-out;--radius-control:8px;--radius-control-inner:5px;--radius-checkbox:5px;--radius-surface:10px;--radius-floating:12px;--accent-base:#0f6a4a;--accent-emphasis:var(--accent-base);--accent-on:#f4f7f5;--accent-surface-active:#0f6a4a29;--accent-soft-bg:#0f6a4a21;--accent-soft-strong:#0f6a4a33;--bg-app:#f5f5f5;--bg-surface:#fafafa;--bg-elevated:#fff;--bg-control:#fafafa;--bg-control-hover:#f2f2f2;--bg-input:#fff;--bg-input-focus:#fff;--bg-card:#fff;--bg-card-hover:#fafafa;--border-subtle:#d7d7d7;--border-strong:#c2c2c2;--sidebar-glass-border:#cccccc85;--text-primary:#242424;--text-secondary:#5f5f5f;--text-muted:#848484;--text-on-accent:var(--accent-on);--surface-shadow:0 10px 30px #00000014;--surface-shadow-soft:0 4px 14px #0000000f;--surface-glass-bg:#fafafac7;--surface-glass-hover:#0000000e;--surface-glass-active:var(--accent-surface-active);--surface-glass-border:#cccccc75;--surface-glass-shadow:0 6px 18px #0000000e;--surface-glass-backdrop:blur(18px) saturate(1.12);--menu-separator:color-mix(in srgb, var(--text-primary) 12%, transparent);--control-depth-border:var(--sidebar-glass-border);--control-depth-edge:color-mix(in srgb, var(--control-depth-border) 90%, var(--text-primary));--control-depth-edge-soft:color-mix(in srgb, var(--control-depth-edge) 28%, transparent);--control-depth-shadow:var(--surface-shadow-soft), inset 0 -.5px 0 var(--control-depth-edge-soft);--control-depth-shadow-hover:var(--surface-shadow-soft), inset 0 -.5px 0 color-mix(in srgb, var(--control-depth-edge) 34%, transparent);--control-accent-bg:var(--accent-base);--control-accent-hover:var(--accent-emphasis);--control-accent-hover-subtle:color-mix(in srgb, var(--control-accent-bg) 94%, var(--control-accent-hover));--control-accent-gradient:linear-gradient(180deg, color-mix(in srgb, var(--text-on-accent) 6%, transparent), #0000000d), var(--control-accent-bg);--control-accent-gradient-hover:linear-gradient(180deg, color-mix(in srgb, var(--text-on-accent) 6%, transparent), #0000000d), var(--control-accent-hover-subtle);--control-accent-depth-edge:color-mix(in srgb, var(--control-accent-bg) 82%, var(--text-on-accent));--control-accent-depth-edge-hover:color-mix(in srgb, var(--control-accent-hover) 78%, var(--text-on-accent));--control-accent-depth-shadow:var(--surface-shadow-soft), inset 0 -.5px 0 color-mix(in srgb, var(--control-accent-depth-edge) 34%, transparent);--control-accent-depth-shadow-hover:var(--surface-shadow-soft), inset 0 -.5px 0 color-mix(in srgb, var(--control-accent-depth-edge-hover) 40%, transparent);--control-bg:var(--bg-control);--control-border:var(--sidebar-glass-border);--control-input-bg:var(--bg-input);--control-input-focus-bg:var(--bg-input-focus);--ambient-green-main:#8ec5a685;--ambient-green-soft:#c4e1cfad;--ambient-green-pale:#e0f0e6d6;--ambient-green-wash:#c7e3d19e;--ambient-white-soft:#ffffff9e;--ambient-white-faint:#ffffff57;--ambient-grain-opacity:.026;--ambient-grain-blend:multiply;--gallery-screenshot-shadow:0 12px 30px #1f3e2d1a, 0 3px 10px #0000000f}*{box-sizing:border-box}[data-locale-block]{display:none!important}html[data-locale=zh-Hans] [data-locale-block=zh-Hans],html[data-locale=zh-HK] [data-locale-block=zh-HK],html[data-locale=zh-TW] [data-locale-block=zh-TW],html[data-locale=en] [data-locale-block=en],html[data-locale=ja] [data-locale-block=ja],html[data-locale=ko] [data-locale-block=ko],html[data-locale=de] [data-locale-block=de],html[data-locale=fr] [data-locale-block=fr],html[data-locale=es] [data-locale-block=es],html[data-locale=it] [data-locale-block=it],html[data-locale=pt] [data-locale-block=pt],html[data-locale=ru] [data-locale-block=ru]{display:var(--localized-display,contents)!important}html{scroll-behavior:smooth;scroll-snap-type:y mandatory;scroll-padding-top:0}body{isolation:isolate;background:var(--bg-app);color:var(--text-primary);font-family:var(--font-ui);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;line-height:1.7;display:flow-root;position:relative}body>:not(.site-ambient-background){z-index:1;position:relative}.site-ambient-background{--ambient-spot-sm:clamp(213.333px, 24vw, 480px);--ambient-spot-md:clamp(266.667px, 30vw, 600px);--ambient-spot-lg:clamp(320px, 36vw, 720px);--ambient-spot-xl:clamp(382.222px, 43vw, 860px);--ambient-cycle-primary:clamp(1440px, 180svh, 1800px);--ambient-cycle-secondary:clamp(1560px, 205svh, 2080px);z-index:0;contain:strict;background:var(--bg-app);pointer-events:none;position:absolute;inset:0;overflow:hidden}.site-ambient-flow{will-change:transform;background-repeat:repeat-y;display:block;position:absolute;inset:-96px -8vw}.site-ambient-flow-primary{background-image:radial-gradient(ellipse var(--ambient-spot-lg) var(--ambient-spot-md) at 42% 34%, var(--ambient-green-main) 0%, var(--ambient-green-soft) 34%, transparent 74%), radial-gradient(ellipse var(--ambient-spot-md) var(--ambient-spot-sm) at 84% 72%, var(--ambient-green-soft) 0%, var(--ambient-green-pale) 42%, transparent 76%), radial-gradient(ellipse var(--ambient-spot-md) var(--ambient-spot-md) at 83% 30%, var(--ambient-white-soft), transparent 72%), radial-gradient(ellipse var(--ambient-spot-md) var(--ambient-spot-md) at 18% 68%, var(--ambient-green-soft) 0%, var(--ambient-green-pale) 40%, transparent 74%), radial-gradient(ellipse var(--ambient-spot-sm) var(--ambient-spot-sm) at 8% 30%, var(--ambient-white-faint), transparent 72%);background-size:100% var(--ambient-cycle-primary);animation:28s cubic-bezier(.45,.05,.22,.98) infinite alternate site-ambient-primary}.site-ambient-flow-secondary{background-image:radial-gradient(ellipse var(--ambient-spot-xl) var(--ambient-spot-md) at 62% 34%, var(--ambient-white-faint), transparent 74%), radial-gradient(ellipse var(--ambient-spot-lg) var(--ambient-spot-lg) at 28% 62%, var(--ambient-green-soft) 0%, var(--ambient-green-pale) 44%, transparent 78%), radial-gradient(ellipse var(--ambient-spot-sm) var(--ambient-spot-md) at 76% 68%, var(--ambient-green-pale) 0%, var(--ambient-green-soft) 38%, transparent 76%);background-size:100% var(--ambient-cycle-secondary);mix-blend-mode:soft-light;animation:36s cubic-bezier(.38,.04,.2,1) infinite alternate-reverse site-ambient-secondary;inset:-64px -6vw}.site-ambient-grain{mix-blend-mode:var(--ambient-grain-blend);opacity:var(--ambient-grain-opacity);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' seed='11' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='.5'/%3E%3C/svg%3E");background-size:180px 180px;display:block;position:absolute;inset:0}@keyframes site-ambient-primary{0%{transform:translate(-18px,-12px)}46%{transform:translate(14px,-20px)}to{transform:translate(21px,16px)}}@keyframes site-ambient-secondary{0%{transform:translate(15px,-10px)}52%{transform:translate(-18px,15px)}to{transform:translate(8px,22px)}}a{color:inherit}h1,h2,h3,p{margin-top:0}h1,h2{font-family:var(--font-serif);font-weight:var(--font-page-title-weight)}.site{min-height:100vh}.page-site{flex-direction:column;min-height:100vh;display:flex}.page-site main{flex:1}.brand-ambient-glass-surface{--brand-ambient-glass-bg:var(--surface-glass-bg);--brand-ambient-glass-border:var(--surface-glass-border);--brand-ambient-glass-highlight:#ffffff12;--brand-ambient-glass-lowlight:#00000003;--brand-ambient-glass-shadow:var(--surface-glass-shadow);--brand-ambient-glass-side-border:color-mix(in srgb, var(--brand-ambient-glass-border) 62%, var(--brand-ambient-glass-lowlight));--brand-ambient-glass-bottom-edge:color-mix(in srgb, var(--brand-ambient-glass-border) 46%, transparent);--brand-ambient-glass-paint:linear-gradient(180deg, var(--brand-ambient-glass-highlight), var(--brand-ambient-glass-lowlight)), var(--brand-ambient-glass-bg);--brand-ambient-glass-depth:var(--brand-ambient-glass-shadow), inset 0 -.5px 0 var(--brand-ambient-glass-bottom-edge);border:1px solid var(--brand-ambient-glass-border);border-right-color:var(--brand-ambient-glass-side-border);border-left-color:var(--brand-ambient-glass-side-border);border-radius:var(--radius-surface);background:var(--brand-ambient-glass-paint);box-shadow:var(--brand-ambient-glass-depth);backdrop-filter:var(--surface-glass-backdrop)}main{margin-top:-77px}html[data-embed-mode=app] .nav,html[data-embed-mode=app] .footer,html[data-embed-mode=app] .site-ambient-background{display:none}html[data-embed-mode=app],html[data-embed-mode=app] body{background:var(--bg-app)}html[data-embed-mode=app],html[data-embed-mode=app] body,html[data-embed-mode=app] body *{-webkit-tap-highlight-color:transparent}html[data-embed-mode=app] main{margin-top:0}html[data-embed-mode=app] .legal{padding-top:0;padding-bottom:0}html[data-embed-mode=app] .legal h1,html[data-embed-mode=app] .legal .page-title{display:none}html[data-embed-mode=app] .legal .legal-date{margin-top:0}html[data-embed-mode=app] .support-page{align-items:start;width:100%;max-width:none;min-height:100%;margin:0;padding:6px 20px 24px}html[data-embed-mode=app] .support-page h1,html[data-embed-mode=app] .support-page .page-title{display:none}html[data-embed-mode=app] .support-content{margin-top:0}.nav{z-index:100;border-radius:var(--radius-floating);justify-content:space-between;align-items:center;gap:16px;width:calc(100% - 32px);max-width:1040px;margin:12px auto 0;padding:5px 5px 5px 12px;animation:.62s both nav-enter;display:flex;position:sticky;top:12px}.nav-glass-surface{z-index:0;border-radius:inherit;pointer-events:none;animation:.62s both nav-surface-enter;position:absolute;inset:0}.nav>.brand,.nav>.nav-links{z-index:1;position:relative}.skip-shell-animation .nav,.skip-shell-animation .nav-glass-surface,.skip-shell-animation .footer{animation:none}.brand{min-width:0;color:var(--text-primary);letter-spacing:0;align-items:center;gap:8px;font-size:16px;font-weight:600;text-decoration:none;display:inline-flex}.brand img{border-radius:7px;width:24px;height:24px}.brand span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.brand-name.brand-name{font-family:var(--font-brand);font-synthesis:none;font-style:normal;font-weight:550}.nav-links{color:var(--text-secondary);flex:none;align-items:center;gap:18px;font-size:14px;display:flex}.nav-links a{align-items:center;min-height:32px;text-decoration:none;display:inline-flex}.nav-links a:hover{color:var(--text-primary)}.hero,.section,.showcase,.product-visual,.legal{max-width:1120px;margin:0 auto;padding:84px 24px}.hero{scroll-snap-align:start;scroll-snap-stop:always;grid-template-rows:minmax(0,1fr) auto;place-items:center;min-height:100svh;padding-top:clamp(88px,10svh,116px);padding-bottom:0;display:grid;position:relative}.scroll-cue{width:36px;height:24px;color:var(--text-muted);justify-self:center;animation:3.2s ease-in-out infinite cue-pulse;position:relative;bottom:auto;left:auto}.scroll-cue:before{content:"";background:currentColor;width:24px;height:24px;position:absolute;top:0;left:6px;mask:url(/icons/chevron.down.svg) 50%/contain no-repeat}.hero-copy{max-width:520px}.eyebrow{color:var(--accent-base);letter-spacing:0;margin:0 0 18px;font-size:13px;font-weight:600}h1{letter-spacing:0;text-align:center;white-space:nowrap;flex-direction:column;align-items:center;gap:0;margin-bottom:0;font-size:clamp(32px,3.9vw,54px);line-height:.92;display:flex}.page-title{text-align:center;width:100%;margin:0 auto clamp(34px,5svh,50px)}.page-title-locale{width:100%}.page-title h1{align-items:initial;color:var(--text-primary);font-family:var(--font-serif);font-size:clamp(30px,4.3vw,52px);font-weight:var(--font-page-title-weight);overflow-wrap:anywhere;text-align:center;white-space:normal;margin:0;line-height:1.12;display:block}.page-title--compact{margin-bottom:10px}.page-title--compact h1{font-size:24px;line-height:1.25}h1>span{animation:.76s both text-enter;display:block}h1 strong{font-weight:600}h1>.typewriter-line{width:min(34ch,100vw - 36px);max-width:none;height:1.12em;color:var(--text-primary);font-family:var(--font-custom-serif);text-align:center;white-space:nowrap;min-height:1.12em;margin:.28em auto 0;font-size:clamp(17px,2vw,28px);font-weight:400;line-height:1.12;animation-delay:90ms;display:block}.typewriter-content{white-space:nowrap;justify-content:center;align-items:baseline;height:1.12em;min-height:1.12em;line-height:1.12;display:inline-flex}.typewriter-prefix{white-space:nowrap;font-weight:400;display:inline}#typewriter-text{font-family:var(--font-custom-serif);white-space:nowrap;font-weight:500;display:inline}.typewriter-cursor{color:var(--accent-base);margin-left:.02em;animation:1.1s step-end infinite caret-blink;display:inline}@keyframes caret-blink{0%,48%{opacity:.9}49%,to{opacity:0}}h2{letter-spacing:0;margin-bottom:16px;font-size:clamp(30px,4vw,48px);line-height:1.15}h3{margin-bottom:10px;font-size:18px;font-weight:600;line-height:1.35}.lead,.section-heading p{color:var(--text-secondary);font-size:18px;line-height:1.55}.actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:clamp(22px,3.2svh,32px);animation:.72s .26s both title-rise;display:flex}.reader-paper{border:1px solid color-mix(in srgb, var(--border-subtle) 80%, transparent);background:var(--bg-elevated);max-width:min(540px,56vw);color:var(--text-secondary);font-family:var(--font-custom-serif);margin:0 auto;padding:clamp(22px,2.8vw,34px);font-size:clamp(12px,.82vw,14px);line-height:1.62;animation:.88s .12s both paper-enter;position:relative;transform:rotate(1.2deg);box-shadow:0 26px 70px #0000001f}@media (prefers-color-scheme:light){.reader-paper{background-color:#fdfaf4;background-image:var(--reader-paper-texture,none);background-position:0 0;background-repeat:repeat;background-size:128px 128px}}.reader-paper p{margin-bottom:.72em}.reader-paper p:last-child{margin-bottom:0}.reader-paper-credit{color:var(--text-muted);font-family:var(--font-custom-serif);text-align:right;font-size:12.5px;font-weight:500}@keyframes title-rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes nav-enter{0%{transform:translateY(-8px)}to{transform:translateY(0)}}@keyframes nav-surface-enter{0%{opacity:0}to{opacity:1}}@keyframes card-enter{0%{opacity:0;transform:translateY(12px)scale(.99)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes text-enter{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes footer-enter{0%{opacity:0}to{opacity:1}}@keyframes screenshot-enter{0%{opacity:0;filter:blur(4px);transform:translateY(18px)scale(.985)}to{opacity:1;filter:blur();transform:translateY(0)scale(1)}}@keyframes paper-enter{0%{opacity:0;transform:translateY(14px)rotate(.7deg)}to{opacity:1;transform:translateY(0)rotate(1.2deg)}}@keyframes cue-pulse{0%,to{opacity:.42;transform:translateY(0)}50%{opacity:.78;transform:translateY(2px)}}.button{border:1px solid #0000;border-top-width:0;border-bottom-color:var(--control-accent-depth-edge);border-radius:var(--radius-control);background:var(--control-accent-gradient);min-height:42px;color:var(--text-on-accent);box-shadow:var(--control-accent-depth-shadow);transition:background-color var(--motion-hover-duration) var(--motion-hover-easing), border-color var(--motion-hover-duration) var(--motion-hover-easing), color var(--motion-hover-duration) var(--motion-hover-easing);justify-content:center;align-items:center;padding:0 18px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.button.secondary{--control-depth-border:var(--sidebar-glass-border);border-color:var(--control-depth-border);border-top-width:1px;border-top-color:var(--control-depth-border);border-bottom-color:var(--control-depth-edge);background:var(--control-bg);color:var(--text-primary);box-shadow:var(--control-depth-shadow)}.button:hover{border-bottom-color:var(--control-accent-depth-edge-hover);background:var(--control-accent-gradient-hover)}.button.secondary:hover{border-color:var(--control-depth-border);border-bottom-color:var(--control-depth-edge);background:color-mix(in srgb, var(--control-bg) 88%, var(--bg-control-hover))}.download-split{--download-radius:6px;--download-inner-radius:5px;border:1px solid #0000;border-top-width:0;border-bottom-color:var(--control-accent-depth-edge);border-radius:var(--download-radius);background:var(--control-accent-gradient);color:var(--text-on-accent);box-shadow:none;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;user-select:none;grid-template-columns:minmax(52px,1fr) 26px;align-items:stretch;padding:0;display:inline-grid;position:relative;overflow:visible}.download-split:after{background:color-mix(in srgb, var(--text-on-accent) 42%, transparent);content:"";pointer-events:none;border-radius:999px;width:1px;position:absolute;top:7px;bottom:7px;right:26px}.nav-download{align-self:center}.download-main{min-height:30px;color:var(--text-on-accent);white-space:nowrap;border-radius:var(--download-inner-radius) 0 0 var(--download-inner-radius);-webkit-tap-highlight-color:transparent;justify-content:center;align-items:center;padding:0 8px;font-size:12.5px;font-weight:600;text-decoration:none;display:inline-flex}.nav-links .download-main:hover,.nav-links .download-main:active,.nav-links .download-main:focus-visible{color:var(--text-on-accent)}.download-menu-trigger:hover,.download-menu-trigger:focus-visible,.download-menu-trigger:active{box-shadow:none;background:0 0;transform:none}.download-menu-trigger:focus-visible{outline:2px solid color-mix(in srgb, var(--text-on-accent) 62%, transparent);outline-offset:-2px}.download-split.is-disabled{border-color:var(--border-subtle);background:var(--bg-control);color:var(--text-muted);box-shadow:none;cursor:not-allowed}.download-split.is-disabled .download-main,.nav-links .download-split.is-disabled .download-main:hover,.nav-links .download-split.is-disabled .download-main:active,.nav-links .download-split.is-disabled .download-main:focus-visible{color:var(--text-muted)}.download-split.is-disabled .download-menu{pointer-events:none}.download-split.is-disabled .download-menu-trigger{color:var(--text-muted);cursor:not-allowed}.download-split.is-disabled:after{background:var(--border-subtle)}.download-menu{z-index:120;position:relative}.download-menu-trigger{appearance:none;border-radius:0 var(--download-inner-radius) var(--download-inner-radius) 0;width:26px;min-height:30px;color:var(--text-on-accent);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;user-select:none;background:0 0;border:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.download-menu-trigger:after{content:"";background:currentColor;width:11px;height:11px;transition:transform .16s cubic-bezier(.18,.9,.2,1);transform:rotate(0);mask:url(/icons/chevron.down.svg) 50%/contain no-repeat}.download-menu.is-open:not(.is-closing) .download-menu-trigger:after{transform:rotate(180deg)}.platform-menu-list{z-index:200;border:1px solid var(--surface-glass-border);border-radius:var(--radius-floating);background:var(--surface-glass-bg);min-width:148px;box-shadow:var(--surface-glass-shadow);backdrop-filter:var(--surface-glass-backdrop);transform-origin:100% 0;visibility:hidden;opacity:0;pointer-events:none;will-change:opacity, transform;gap:2px;padding:6px;display:grid;position:absolute;top:calc(100% + 7px);right:0}.download-menu.is-open:not(.is-closing) .platform-menu-list{visibility:visible;pointer-events:auto;animation:.14s cubic-bezier(.18,.9,.2,1) both menu-enter-down}.download-menu.is-closing .platform-menu-list{visibility:visible;pointer-events:none;animation:.12s both menu-exit-down}.platform-menu-list a{border-radius:var(--radius-control);min-height:34px;color:var(--text-primary);align-items:center;padding:0 10px;font-size:13px;text-decoration:none;transition:background-color .12s,color .12s;display:flex}.platform-menu-list a[data-current=true]{color:var(--text-primary);font-weight:600}.platform-menu-list a:hover,.platform-menu-list a:focus-visible{background:var(--surface-glass-hover);color:var(--text-primary);outline:none}.platform-menu-list a:active{background:var(--surface-glass-active)}.app-window{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);box-shadow:var(--surface-shadow);overflow:hidden}.product-visual{scroll-snap-align:start;scroll-snap-stop:always;grid-template-rows:auto minmax(0,1fr) 30px;align-items:center;gap:clamp(4px,.9svh,10px);max-width:1440px;height:100svh;min-height:0;padding-top:clamp(118px,14svh,152px);padding-bottom:clamp(12px,2svh,22px);display:grid;position:relative}.product-visual h1{font-family:var(--font-custom-serif);font-weight:400;transform:none}.product-visual h1>span:first-child{font-weight:400}.product-visual h1 strong{font-family:var(--font-brand);font-synthesis:none;font-weight:550}.hero-screenshot{place-items:center;width:100%;min-height:0;margin:0 auto;display:grid}.hero-screenshot img{object-fit:contain;width:min(94vw,1320px);height:auto;max-height:min(60svh,700px);animation:.9s .14s both screenshot-enter;display:block}.hero-screenshot{place-self:start center}.gallery{scroll-snap-align:start;scroll-snap-stop:always;width:100%;height:100svh;min-height:0;padding:0;position:relative}.gallery-picker{z-index:6;border:1px solid var(--surface-glass-border);background:var(--surface-glass-bg);max-width:100%;box-shadow:var(--surface-glass-shadow);scrollbar-width:none;backdrop-filter:var(--surface-glass-backdrop);border-radius:10px;padding:3px;display:inline-flex;position:absolute;bottom:clamp(20px,3svh,30px);left:50%;overflow-x:auto;transform:translate(-50%)}.gallery-picker-indicator{z-index:0;width:var(--gallery-picker-width,0);background:var(--control-accent-gradient);box-shadow:0 1px 4px color-mix(in srgb, var(--accent-base) 24%, transparent);pointer-events:none;transform:translate3d(var(--gallery-picker-x,0), 0, 0);will-change:width, transform;border-radius:7px;position:absolute;top:3px;bottom:3px;left:0}.gallery-picker[data-indicator-ready=true] .gallery-picker-indicator{transition:width .34s cubic-bezier(.16,.84,.2,1),transform .34s cubic-bezier(.16,.84,.2,1)}.gallery-picker::-webkit-scrollbar{display:none}.gallery-track::-webkit-scrollbar{display:none}.gallery-picker button{appearance:none;z-index:1;min-height:32px;color:var(--text-secondary);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:7px;flex:none;justify-content:center;align-items:center;padding:0 14px;font-size:12.5px;font-weight:600;transition:color .14s;display:inline-flex;position:relative}.gallery-picker button:hover{color:var(--text-primary)}.gallery-picker button[aria-pressed=true]{color:var(--text-on-accent)}.gallery-picker button:focus-visible{outline:2px solid color-mix(in srgb, var(--accent-base) 48%, transparent);outline-offset:1px}.gallery-stage{--gallery-card-height:min(70svh, 660px, 56vw);--gallery-first-card-half-width:min(56svh, 528px, 44.8vw);--gallery-last-card-half-width:min(16.1875svh, 152.625px, 12.95vw);height:100%;min-height:0;position:relative;overflow:hidden}.gallery-track{--gallery-gap:clamp(14px, 1.8vw, 24px);align-items:center;gap:var(--gallery-gap);overscroll-behavior-x:contain;width:100%;height:100%;min-height:0;scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-block:clamp(7px,1.1svh,12px);padding-inline-start:max(18px, calc(50vw - var(--gallery-first-card-half-width)));padding-inline-end:max(18px, calc(50vw - var(--gallery-last-card-half-width)));scroll-padding-inline:0;display:flex;overflow-x:auto}.gallery-track:focus,.gallery-track:focus-visible{outline:none}.gallery-card{width:auto;height:var(--gallery-card-height);max-height:calc(100% - 24px);aspect-ratio:var(--gallery-aspect);scroll-snap-align:center;scroll-snap-stop:always;cursor:pointer;flex:none;margin:0;overflow:visible}.gallery-card-visual{border:1px solid color-mix(in srgb, var(--border-subtle) 82%, transparent);border-radius:var(--radius-floating);background:var(--bg-elevated);width:100%;height:100%;translate:var(--gallery-dynamic-shift,0) 0;animation:.44s cubic-bezier(.18,.9,.2,1) both gallery-card-enter;animation-delay:calc(var(--gallery-index,0) * 24ms);overflow:hidden;box-shadow:0 16px 44px #0000001a}.gallery-card-visual img{object-fit:contain;width:100%;height:100%;display:block}.gallery-screenshot-visual{box-shadow:var(--gallery-screenshot-shadow);background:0 0;border:0}.gallery-screenshot-visual img{object-fit:cover;width:calc(100% + 2px);max-width:none;height:calc(100% + 2px);margin:-1px}.gallery-linux-visual{background:radial-gradient(circle at 24% 18%,#ffffffb8,#0000 42%),linear-gradient(135deg,#f2f5f1 0%,#e1ebe4 50%,#b3c8ba 100%);flex-direction:column;justify-content:center;align-items:center;gap:clamp(16px,2.4vw,28px);padding:clamp(24px,5vw,64px);display:flex}.gallery-linux-icon{background:#29483a;flex:none;width:clamp(78px,10vw,138px);height:clamp(88px,11vw,154px);mask:url(/platform-linux.webp) 50%/contain no-repeat}.gallery-linux-visual p{color:#40594d;text-align:center;max-width:520px;margin:0;font-size:clamp(13px,1.25vw,16px);line-height:1.55}@keyframes gallery-card-enter{0%{opacity:0;transform:translateY(10px)scale(.992)}to{opacity:1;transform:translateY(0)scale(1)}}.window-bar{border-bottom:1px solid var(--border-subtle);background:var(--bg-surface);align-items:center;gap:7px;height:38px;padding:0 14px;display:flex}.window-bar span{background:var(--border-strong);border-radius:50%;width:10px;height:10px}.window-body{grid-template-columns:58px 1fr;min-height:442px;display:grid}.window-sidebar{border-right:1px solid var(--border-subtle);background:var(--bg-surface);flex-direction:column;align-items:center;gap:14px;padding-top:18px;display:flex}.window-sidebar i{border-radius:var(--radius-control);background:var(--bg-control-hover);width:28px;height:28px}.window-sidebar i:first-child{background:var(--accent-soft-strong)}.window-content{padding:44px 52px}.mock-title{background:var(--text-primary);opacity:.16;border-radius:6px;width:54%;height:36px;margin-bottom:36px}.mock-line{background:var(--text-primary);opacity:.14;border-radius:99px;width:82%;height:12px;margin-bottom:16px}.mock-line.long{width:92%}.mock-line.short{width:52%}.mock-panel{border:1px solid var(--border-subtle);border-radius:var(--radius-control);background:var(--bg-card-hover);width:76%;height:132px;margin-top:44px}.showcase{padding-top:42px}.section-heading{max-width:700px;margin-bottom:34px}.screenshot-row{overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scrollbar-width:thin;grid-auto-columns:minmax(620px,78%);grid-auto-flow:column;gap:22px;margin-inline:-11%;padding:4px 11% 14px;scroll-padding-inline:11%;display:grid;overflow-x:auto}.screenshot-card{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);min-height:380px;box-shadow:var(--surface-shadow-soft);color:var(--text-muted);scroll-snap-align:center;place-items:center;font-size:15px;display:grid}.feature-section{grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:64px;display:grid}.feature-copy{max-width:420px}.feature-list{border-top:1px solid var(--border-subtle);gap:0;display:grid}.item{border-bottom:1px solid var(--border-subtle);padding:28px 0}.item p,.legal p,.legal li{color:var(--text-secondary);margin-bottom:0}.legal{max-width:900px}.legal .page-title{margin-bottom:16px}.legal h2{margin-top:42px;margin-bottom:12px;font-size:clamp(22px,2.5vw,30px)}.legal p,.legal li{max-width:820px;font-family:var(--font-ui);font-size:16px;line-height:1.78}.legal .legal-date{color:var(--text-muted);font-family:var(--font-ui);margin-top:0;margin-bottom:26px;font-size:13px;line-height:1.4}.changelog-page{width:min(820px,100% - 48px);max-width:820px;min-height:100svh;margin:-77px auto 0;padding:clamp(126px,17svh,168px) 0 clamp(116px,16svh,148px)}.changelog-shell{width:100%}.changelog-tabs{bottom:calc(clamp(20px, 3svh, 30px) + var(--changelog-footer-lift,0px));z-index:60;border:1px solid var(--surface-glass-border);background:var(--surface-glass-bg);max-width:calc(100vw - 36px);box-shadow:var(--surface-glass-shadow);backdrop-filter:var(--surface-glass-backdrop);border-radius:10px;align-items:center;padding:3px;display:flex;position:fixed;left:50%;transform:translate(-50%)}.changelog-tabs button{border-radius:var(--radius-control-inner);min-height:32px;color:var(--text-secondary);font:inherit;white-space:nowrap;cursor:pointer;transition:background-color var(--motion-hover-duration) var(--motion-hover-easing), color var(--motion-hover-duration) var(--motion-hover-easing);background:0 0;border:0;padding:0 15px;font-size:12.5px;font-weight:600;line-height:1}.changelog-tabs button:hover{color:var(--text-primary)}.changelog-tabs button[aria-selected=true]{background:var(--control-accent-gradient);color:var(--text-on-accent);box-shadow:var(--control-accent-depth-shadow)}.changelog-tabs button:focus-visible{outline:2px solid color-mix(in srgb, var(--accent-base) 48%, transparent);outline-offset:1px}.changelog-content{margin-top:0}.changelog-panel[hidden]{display:none}.changelog-entry{grid-template-columns:minmax(112px,.28fr) minmax(0,1fr);gap:clamp(28px,5vw,62px);padding:clamp(28px,4vw,38px);display:grid}.changelog-entry+.changelog-entry{margin-top:clamp(18px,3svh,26px)}.changelog-entry h2{color:var(--text-primary);font-family:var(--font-ui);letter-spacing:.01em;margin:0;font-size:clamp(28px,4vw,42px);line-height:1.1}.changelog-notes{color:var(--text-secondary);font-family:var(--font-ui);gap:11px;margin:1px 0 0;padding:0;font-size:clamp(15px,1.3vw,17px);line-height:1.68;list-style:none;display:grid}.changelog-notes li{padding-left:17px;position:relative}.changelog-notes li:before{background:var(--control-accent-gradient);content:"";border-radius:50%;width:5px;height:5px;position:absolute;top:.78em;left:0}.help-page{width:min(820px,100% - 48px);max-width:820px;min-height:100svh;margin:-77px auto 0;padding:clamp(126px,17svh,168px) 0 clamp(116px,16svh,148px)}.help-hero,.help-copy{width:100%}.help-content{margin-top:clamp(42px,7svh,66px)}.help-item{overflow:hidden}.help-item+.help-item{margin-top:clamp(14px,2.4svh,20px)}.help-question{min-height:62px;color:var(--text-primary);font-family:var(--font-ui);cursor:pointer;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:17px 24px;font-size:clamp(16px,1.45vw,19px);font-weight:600;line-height:1.35;list-style:none;display:grid}.help-question::-webkit-details-marker{display:none}.help-question:after{width:8px;height:8px;color:var(--text-muted);content:"";border-bottom:1.5px solid;border-right:1.5px solid;transition:transform .16s,color .16s;transform:rotate(45deg)translateY(-2px)}.help-item[open]>.help-question:after{color:var(--accent-base);transform:rotate(225deg)translate(-1px,-1px)}.help-question:hover:after,.help-question:focus-visible:after{color:var(--text-primary)}.help-question:focus{outline:none}@media (hover:hover) and (pointer:fine){.help-question:focus-visible{outline:2px solid color-mix(in srgb, var(--accent-base) 48%, transparent);outline-offset:-2px}}.help-answer{color:var(--text-secondary);font-family:var(--font-ui);padding:0 24px 24px;font-size:clamp(15px,1.3vw,17px);line-height:1.68}.help-answer p{margin:0}.help-platform-answers{border-top:1px solid var(--menu-separator);grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 28px;padding-top:18px;display:grid}.help-platform-label{color:var(--text-muted);font-family:var(--font-ui);margin-bottom:5px;font-size:12px;font-weight:600;line-height:1.4;display:block}.help-platform-answer p{color:var(--text-primary)}.help-note{border-top:1px solid var(--menu-separator);color:var(--text-muted);padding-top:16px;font-size:13px;margin-top:18px!important}.help-actions{margin-top:28px;display:block}html[data-embed-mode=app] .help-page{width:100%;max-width:none;min-height:100%;margin:0;padding:0 20px 24px}.download-panel{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);box-shadow:var(--surface-shadow-soft);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;padding:24px;display:grid}.download-format-grid{grid-template-columns:repeat(2,360px);justify-content:center;justify-items:stretch;gap:30px;width:100%;margin:0 auto;display:grid}.download-format-grid-three{grid-template-columns:repeat(3,minmax(0,1fr));width:min(1120px,100%)}.download-format-page{align-items:center;min-height:0;display:grid}.download-format-card{border-radius:var(--radius-surface);text-align:center;place-content:center;justify-items:center;gap:20px;width:100%;min-height:360px;padding:54px 48px;animation:.52s both card-enter;display:grid}.download-format-card:nth-child(2){animation-delay:70ms}.download-format-card:nth-child(3){animation-delay:.14s}.download-format-card img{object-fit:contain;width:152px;height:152px}.download-format-card h2{color:var(--text-primary);font-family:var(--font-ui);font-size:18px;font-weight:var(--font-page-title-weight);margin:2px 0 0;line-height:1.2}.download-format-card-with-options{grid-template-rows:auto auto auto}.download-arch-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(340px,100%);margin-top:24px;display:grid}.download-arch-options>span,.download-arch-options>a,.download-format-action{--control-depth-border:var(--sidebar-glass-border);border:1px solid var(--control-depth-border);border-bottom-color:var(--control-depth-edge);border-radius:var(--radius-control);background:var(--control-bg);min-height:34px;color:var(--text-secondary);font-family:var(--font-ui);box-shadow:var(--control-depth-shadow);transition:background-color var(--motion-hover-duration) var(--motion-hover-easing), border-color var(--motion-hover-duration) var(--motion-hover-easing), color var(--motion-hover-duration) var(--motion-hover-easing);justify-content:center;align-items:center;gap:7px;padding:0 13px;font-size:13px;font-weight:500;line-height:1.2;display:inline-flex}.download-arch-options>a{border-color:#0000;border-top-width:0;border-bottom-color:var(--control-accent-depth-edge);background:var(--control-accent-gradient);color:var(--text-on-accent);text-decoration:none}.download-arch-options>a:hover,.download-arch-options>a:focus-visible{border-bottom-color:var(--control-accent-depth-edge-hover);background:var(--control-accent-gradient-hover);outline:none}.download-action-icon{width:14px;height:14px;mask:var(--download-action-icon) center / contain no-repeat;background:currentColor}.download-format-action{width:min(340px,100%);margin-top:24px;text-decoration:none}a.download-format-action{border-color:#0000;border-top-width:0;border-bottom-color:var(--control-accent-depth-edge);background:var(--control-accent-gradient);color:var(--text-on-accent);cursor:pointer}a.download-format-action:hover,a.download-format-action:focus-visible{border-bottom-color:var(--control-accent-depth-edge-hover);background:var(--control-accent-gradient-hover);outline:none}.redirect-page{place-items:center;min-height:60vh;padding:120px 24px;display:grid}.redirect-card{border-radius:var(--radius-surface);text-align:center;width:min(520px,100%);padding:28px}.redirect-card p{color:var(--text-secondary);margin:0 0 18px}.redirect-link{border-radius:var(--radius-control);background:var(--control-accent-gradient);min-height:38px;color:var(--text-on-accent);justify-content:center;align-items:center;padding:0 16px;text-decoration:none;display:inline-flex}.ai-guide-shell{grid-template-rows:auto minmax(0,auto) auto;align-content:stretch;justify-items:center;gap:clamp(30px,5svh,46px) 0;min-height:100svh;margin:0;padding:clamp(72px,11svh,112px) clamp(22px,4vw,48px) clamp(54px,8svh,86px);display:grid;position:relative}.language-menu.ai-guide-language{z-index:120;position:fixed;bottom:clamp(16px,3vw,28px);right:clamp(16px,3vw,28px)}.language-menu.ai-guide-language .language-menu-list{top:auto;bottom:calc(100% + 8px)}.ai-guide-title{width:min(560px,100% - 44px);position:static;transform:none}.ai-guide-title .page-title h1{font-size:clamp(30px,4vw,44px)}.ai-guide-title .page-title{margin-bottom:0}.ai-guide-panel{flex-direction:column;justify-content:center;width:min(720px,100%);min-height:0;display:flex;position:relative}.ai-guide-panel[hidden]{display:none}.ai-guide-copy{width:100%}.ai-guide-copy p{max-width:560px;color:var(--text-secondary);font-family:var(--font-serif);margin:10px 0 0;font-size:clamp(15px,2vw,17px);line-height:1.72}.ai-intro-card{width:min(620px,100%);margin:0 auto;padding:clamp(24px,3.4vw,32px)}.ai-intro-card p{font-family:var(--font-ui);font-size:clamp(17px,2.2vw,20px);line-height:1.72}.ai-intro-card p:first-child{margin-top:0}.ai-guide-muted{color:var(--text-muted)}.ai-guide-actions{justify-content:center;justify-self:center;align-items:center;gap:10px;width:100%;margin-top:clamp(14px,4svh,34px);display:flex;position:static;transform:none}.ai-guide-next,.ai-guide-secondary{border-radius:var(--radius-control);min-height:44px;font:inherit;cursor:pointer;transition:background-color var(--motion-hover-duration) var(--motion-hover-easing), border-color var(--motion-hover-duration) var(--motion-hover-easing), color var(--motion-hover-duration) var(--motion-hover-easing);border:1px solid #0000;justify-content:center;align-items:center;padding:0 20px;font-size:15px;display:inline-flex}.ai-guide-next,.ai-api-box button{border-top-width:0;border-top-color:#0000;border-bottom-color:var(--control-accent-depth-edge);background:var(--control-accent-gradient);color:var(--text-on-accent);box-shadow:var(--control-accent-depth-shadow)}.ai-guide-secondary{--control-depth-border:var(--sidebar-glass-border);border-color:var(--control-depth-border);border-bottom-color:var(--control-depth-edge);background:var(--control-bg);color:var(--text-primary);box-shadow:var(--control-depth-shadow)}.ai-guide-next:hover,.ai-guide-next:focus-visible{border-bottom-color:var(--control-accent-depth-edge-hover);background:var(--control-accent-gradient-hover);outline:none}.ai-guide-secondary:hover,.ai-guide-secondary:focus-visible{border-color:var(--control-depth-border);border-bottom-color:var(--control-depth-edge);background:color-mix(in srgb, var(--control-bg) 88%, var(--bg-control-hover));outline:none}.ai-provider-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;width:min(720px,100%);display:grid}.ai-guide-shell[data-provider-locale-group=global] .ai-provider-grid{grid-template-columns:repeat(4,minmax(0,1fr));justify-self:center;width:min(720px,100%);margin-inline:auto}.ai-provider-choice{min-height:108px;color:var(--text-primary);font:inherit;cursor:pointer;transition:border-color var(--motion-hover-duration) var(--motion-hover-easing), box-shadow var(--motion-hover-duration) var(--motion-hover-easing);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:16px 12px;font-size:14px;font-weight:400;display:flex}.ai-provider-choice[hidden],html[data-locale=zh-Hans] .ai-provider-choice[data-locale-group=global],html:not([data-locale=zh-Hans]) .ai-provider-choice[data-locale-group=zh-Hans]{display:none!important}.ai-provider-choice:hover,.ai-provider-choice:active{color:var(--text-primary);border-color:var(--brand-ambient-glass-border);border-right-color:var(--brand-ambient-glass-side-border);border-left-color:var(--brand-ambient-glass-side-border);background:var(--brand-ambient-glass-paint);box-shadow:var(--brand-ambient-glass-depth);transform:none}.ai-provider-choice:focus-visible{color:var(--text-primary);border-color:var(--brand-ambient-glass-border);border-right-color:var(--brand-ambient-glass-side-border);border-left-color:var(--brand-ambient-glass-side-border);background:var(--brand-ambient-glass-paint);box-shadow:var(--brand-ambient-glass-depth), 0 0 0 2px color-mix(in srgb, var(--text-primary) 18%, transparent);outline:none;transform:none}.ai-provider-choice img{object-fit:contain;width:34px;height:34px;display:block}.ai-provider-choice span{text-overflow:ellipsis;white-space:nowrap;max-width:100%;overflow:hidden}.ai-result-card{flex-direction:column;gap:14px;width:min(560px,100%);margin:0 auto;padding:18px;display:flex}.ai-result-head{color:var(--text-primary);align-items:center;gap:12px;padding-bottom:2px;font-size:14px;font-weight:600;display:flex}.ai-result-logo{background:center / contain no-repeat var(--result-logo);flex:none;width:28px;height:28px;display:block}@media (prefers-color-scheme:dark){.ai-provider-choice[data-provider-logo-tone=monochrome] img,.ai-result-logo[data-logo-tone=monochrome]{filter:invert()}}.ai-result-field{gap:7px;min-width:0;display:grid}.ai-result-field label{color:var(--text-muted);font-size:12px;line-height:1.2}.ai-result-card .settings-check-row{width:100%;min-height:38px;color:var(--text-primary);font-family:var(--font-ui);text-align:left;background:0 0;border:0;justify-content:space-between;align-items:center;gap:16px;padding:0;font-size:13px;font-weight:500;line-height:1.25;display:flex}.ai-result-protocol-row{margin-top:2px}.ai-result-card .settings-check-control{box-sizing:border-box;border:1px solid var(--control-border);border-radius:var(--radius-checkbox);background:var(--control-input-bg);color:#0000;flex:none;justify-content:center;align-items:center;width:20px;height:20px;display:inline-flex}.ai-result-card .settings-check-control .icon-mask{opacity:0;width:12px;height:12px;-webkit-mask-image:var(--icon-mask-image);mask-image:var(--icon-mask-image);background:currentColor;mask-position:50%;mask-size:contain;mask-repeat:no-repeat}.ai-result-card .settings-check-row.is-checked .settings-check-control{border-color:var(--control-accent-bg);background:var(--control-accent-gradient);color:var(--text-on-accent)}.ai-result-card .settings-check-row.is-checked .settings-check-control .icon-mask{opacity:1}.ai-pseudo-input{border:1px solid var(--control-border);border-radius:var(--radius-control);background:var(--control-input-bg);min-height:44px;box-shadow:none;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;display:grid}.ai-pseudo-input span{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;padding:0 13px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;overflow:hidden}.ai-pseudo-input button{--control-depth-border:var(--sidebar-glass-border);border:1px solid var(--control-depth-border);border-bottom-color:var(--control-depth-edge);border-radius:var(--radius-control-inner);background:var(--control-bg);min-width:44px;min-height:34px;color:var(--text-secondary);font:inherit;cursor:pointer;box-shadow:var(--control-depth-shadow);transition:background-color var(--motion-hover-duration) var(--motion-hover-easing), border-color var(--motion-hover-duration) var(--motion-hover-easing), color var(--motion-hover-duration) var(--motion-hover-easing);justify-content:center;align-items:center;margin:4px;padding:0 10px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.ai-pseudo-input .ai-copy-subtle{min-width:44px}.ai-pseudo-input button:hover,.ai-pseudo-input button:focus-visible{border-color:var(--control-depth-border);border-bottom-color:var(--control-depth-edge);background:color-mix(in srgb, var(--control-bg) 88%, var(--bg-control-hover));color:var(--text-primary);outline:none}.support-page,.donation-page{flex:1;align-items:center;width:100%;max-width:980px;margin:-77px auto 0;padding:clamp(126px,17svh,168px) 24px clamp(72px,12svh,116px);display:grid}.not-found-page{place-items:center;width:100%;min-height:100svh;margin:0;padding:24px;display:grid}.not-found-content{text-align:center;justify-items:center;gap:clamp(18px,2.8svh,26px);display:grid}.not-found-illustration{width:clamp(112px,14vw,176px);height:auto;display:block}.not-found-message{color:var(--text-primary);font-family:var(--font-serif);font-size:clamp(23px,2.5vw,34px);font-weight:var(--font-page-title-weight);margin:0;line-height:1.18}.support-hero,.donation-hero{width:100%;display:block}.support-copy,.donation-copy{max-width:760px;margin-inline:auto}.support-copy{width:min(820px,100%)}.support-content{gap:clamp(14px,2.4svh,20px);margin-top:0;display:grid}.support-item{overflow:hidden}.support-question{min-height:62px;color:var(--text-primary);font-family:var(--font-ui);cursor:pointer;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:17px 24px;font-size:clamp(16px,1.45vw,19px);font-weight:600;line-height:1.35;list-style:none;display:grid}.support-question::-webkit-details-marker{display:none}.support-question-icon{opacity:.62;flex:0 0 24px;width:24px;height:24px;transition:transform .16s;display:block;transform:rotate(0)}@media (prefers-color-scheme:dark){.support-question-icon{filter:invert()}}.support-item[open]>.support-question .support-question-icon{transform:rotate(180deg)}.support-question:focus{outline:none}@media (hover:hover) and (pointer:fine){.support-question:focus-visible{outline:2px solid color-mix(in srgb, var(--accent-base) 48%, transparent);outline-offset:-2px}}.support-answer{color:var(--text-secondary);font-family:var(--font-ui);padding:0 24px 24px;font-size:clamp(15px,1.3vw,17px);line-height:1.68}.support-answer p{margin:0}.support-platform-answers{gap:16px;padding-top:16px;display:grid}.support-platform-answer{gap:4px;display:grid}.support-platform-label{color:var(--text-muted);font-family:var(--font-ui);font-size:12px;font-weight:600;line-height:1.4}.support-platform-answer p{color:var(--text-primary)}.support-shared-answer{color:var(--text-primary);margin-top:16px!important}html[data-support-platform=desktop] .support-platform-answer[data-support-platform=mobile],html[data-support-platform=mobile] .support-platform-answer[data-support-platform=desktop],html[data-support-platform] .support-platform-label{display:none}html[data-support-platform] .support-platform-answers{gap:0;padding-top:0}.support-email{color:color-mix(in srgb, var(--accent-base) 76%, var(--text-primary));text-decoration:none}.support-email:hover,.support-email:focus-visible{color:var(--accent-base)}.support-longtext,.donation-longtext{max-width:740px;font-family:var(--font-serif)}.support-longtext{max-width:620px}.donation-longtext{min-height:10em}.support-longtext p,.donation-longtext p{color:var(--text-secondary);margin-bottom:1em;font-size:clamp(15px,1.25vw,17px);line-height:1.82}.support-actions{margin-top:clamp(24px,4svh,34px);display:block}.support-contact{border:1px solid color-mix(in srgb, var(--accent-base) 24%, var(--border-subtle));border-radius:var(--radius-control);background:color-mix(in srgb, var(--accent-base) 5%, var(--bg-elevated));max-width:100%;min-height:38px;color:color-mix(in srgb, var(--accent-base) 66%, var(--text-primary));overflow-wrap:anywhere;justify-content:center;align-items:center;gap:8px;padding:0 14px 0 12px;font-size:13.5px;font-style:normal;font-weight:500;line-height:1;text-decoration:none;transition:background-color .16s,border-color .16s,color .16s;display:inline-flex}.support-contact-icon{opacity:.86;background:currentColor;flex:none;width:16px;height:16px;mask:url(/mail.svg) 50%/contain no-repeat}.support-contact:hover,.support-contact:focus-visible{border-color:color-mix(in srgb, var(--accent-base) 38%, var(--border-strong));background:color-mix(in srgb, var(--accent-base) 9%, var(--bg-elevated));color:color-mix(in srgb, var(--accent-base) 76%, var(--text-primary))}.support-contact:focus-visible{box-shadow:0 0 0 2px color-mix(in srgb, var(--accent-base) 18%, transparent);outline:none}.donation-actions{margin-top:clamp(30px,5svh,48px);display:block}.donation-cta{flex-direction:column;align-items:center;gap:9px;display:inline-flex}.donation-method{border-radius:var(--radius-control);color:#8f66df;min-height:40px;font:inherit;cursor:pointer;background:#8f66df1a;border:1px solid #8f66df6b;justify-content:center;align-items:center;gap:9px;padding:0 15px 0 13px;font-size:14px;font-weight:400;text-decoration:none;display:inline-flex}.donation-method strong,.donation-support strong{font-weight:600}.donation-method:hover{color:#8f66df;background:#8f66df26;border-color:#8f66df9e;text-decoration:none}.donation-method-icon{background:currentColor;width:18px;height:18px;mask:url(/aifadian.svg) 50%/contain no-repeat}.donation-support{color:color-mix(in srgb, #8f66df 58%, var(--text-muted));margin:0;font-size:12.5px;line-height:1.35}.meta{color:var(--text-muted);font-size:14px}.footer{border-top:1px solid var(--border-subtle);width:100%;max-width:1120px;color:var(--text-muted);flex:none;grid-column:1/-1;justify-content:space-between;align-self:end;align-items:center;gap:32px;margin:clamp(28px,6svh,56px) auto 0;padding:10px 24px clamp(22px,4svh,34px);font-size:13px;animation:.76s .22s both footer-enter;display:flex}.footer-right{align-content:center;justify-items:end;gap:2px;min-width:0;display:grid}.footer strong{color:var(--text-primary);font-family:var(--font-serif);font-weight:600}.footer p{margin:0}.footer a{color:var(--text-muted);text-decoration:none}.footer-social,.footer-links a,.footer-record{transition:color .16s,opacity .16s}.footer-links a{opacity:.84}.footer-social:hover,.footer-social:focus-visible,.footer-links a:hover,.footer-links a:focus-visible,.footer-record:hover,.footer-record:focus-visible{color:var(--text-primary);opacity:1}.footer a:focus-visible,.footer .language-menu summary:focus-visible{outline:1px solid var(--border-strong);outline-offset:3px;border-radius:4px}.footer-socials{min-height:22px;color:var(--text-muted);align-items:center;gap:18px;display:flex}.footer-social{min-height:22px;font-family:var(--font-ui);opacity:.86;flex:none;align-items:center;gap:7px;font-size:12.5px;line-height:1;display:inline-flex}.footer-social-xiaohongshu{--icon:url(/xiaohongshu.svg)}.footer-contact-icon{background:currentColor;flex:none;width:18px;height:18px;mask:url(/mail.svg) 50%/contain no-repeat}.footer-social-icon{object-fit:contain;width:18px;height:18px}.footer-social-id{font-family:var(--font-ui);font-size:12.5px;line-height:1}.footer-links{flex-wrap:wrap;justify-content:flex-end;gap:8px 14px;font-size:12px;line-height:1;display:flex}.footer-actions{justify-content:flex-end;align-items:center;gap:12px;min-height:20px;display:flex}.footer-compliance{flex-wrap:nowrap;justify-content:flex-end;align-items:center;gap:4px 12px;min-width:0;display:flex}.footer-record{min-height:14px;color:var(--text-muted);font-family:var(--font-ui);white-space:nowrap;opacity:.72;align-items:center;font-size:10.5px;line-height:1;display:inline-flex}.footer-police-record{gap:0}.footer .language-menu summary{border-radius:var(--radius-control-inner);opacity:.84;width:22px;height:22px;transition:background .16s,color .16s,opacity .16s}.footer .language-menu summary:hover,.footer .language-menu summary:focus-visible,.footer .language-menu[open] summary{opacity:1}.footer .language-menu summary:before{width:15px;height:15px}.language-menu{z-index:80;flex:none;position:relative}.language-menu summary{border-radius:var(--radius-control);width:28px;height:28px;color:var(--text-muted);cursor:pointer;justify-content:center;align-items:center;list-style:none;transition:background .16s,color .16s,transform .16s cubic-bezier(.18,.9,.2,1);display:inline-flex}.language-menu summary::-webkit-details-marker{display:none}.language-menu summary:before{content:"";background:currentColor;width:18px;height:18px;mask:url(/lang.svg) 50%/contain no-repeat}.language-menu summary:hover,.language-menu[open] summary{background:var(--surface-glass-hover);color:var(--text-primary)}.language-menu-list{z-index:200;border:1px solid var(--surface-glass-border);border-radius:var(--radius-floating);background:var(--surface-glass-bg);min-width:150px;box-shadow:var(--surface-glass-shadow);backdrop-filter:var(--surface-glass-backdrop);transform-origin:100% 100%;will-change:opacity, transform;gap:2px;padding:6px;display:grid;position:absolute;bottom:calc(100% + 8px);right:0}.language-menu[open]:not(.is-closing) .language-menu-list{animation:.14s cubic-bezier(.18,.9,.2,1) both menu-enter-up}.language-menu.is-closing .language-menu-list{pointer-events:none;animation:.12s both menu-exit-up}.language-menu-list button{border-radius:var(--radius-control);min-height:34px;color:var(--text-secondary);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;padding:0 10px;font-size:13px;transition:background-color .12s,color .12s;display:flex}.language-menu-list button[data-current]{color:var(--text-primary);font-weight:600}.language-menu-list button:hover,.language-menu-list button:focus-visible{background:var(--surface-glass-hover);color:var(--text-primary);outline:none}.language-menu-list button:active{background:var(--surface-glass-active)}@keyframes menu-enter-down{0%{opacity:0;transform:translateY(-4px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes menu-exit-down{0%{opacity:1;transform:translateY(0)scale(1)}to{opacity:0;transform:translateY(-3px)scale(.985)}}@keyframes menu-enter-up{0%{opacity:0;transform:translateY(4px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes menu-exit-up{0%{opacity:1;transform:translateY(0)scale(1)}to{opacity:0;transform:translateY(3px)scale(.985)}}@media (prefers-reduced-motion:reduce){.site-ambient-flow{transform:scale(1.04);animation:none!important}.gallery-card-visual{translate:none}.download-menu-trigger:after,.gallery-card-visual,.gallery-picker-indicator,.gallery-picker button,.language-menu summary,.download-menu.is-open .platform-menu-list,.language-menu[open] .language-menu-list{transition-duration:1ms!important;animation-duration:1ms!important}}@media (prefers-color-scheme:dark){:root{--accent-base:#0f6a4a;--accent-emphasis:var(--accent-base);--accent-on:#edf3ee;--accent-surface-active:#0f6a4a38;--accent-soft-bg:#0f6a4a29;--accent-soft-strong:#0f6a4a3b;--bg-app:#141414;--bg-surface:#1d1d1d;--bg-elevated:#1d1d1d;--bg-control:#242424;--bg-control-hover:#2d2d2d;--bg-input:#1d1d1d;--bg-input-focus:#242424;--bg-card:#1d1d1d;--bg-card-hover:#262626;--border-subtle:#2f2f2f;--border-strong:#414141;--sidebar-glass-border:#4a4a4a8f;--text-primary:#f3f3f3;--text-secondary:#b8b8b8;--text-muted:#8c8c8c;--text-on-accent:var(--accent-on);--surface-shadow:0 12px 30px #00000057;--surface-shadow-soft:0 4px 16px #0000003d;--surface-glass-bg:#171717c2;--surface-glass-hover:#fff1;--surface-glass-active:var(--accent-surface-active);--surface-glass-border:#4a4a4a7a;--surface-glass-shadow:0 8px 22px #00000038;--surface-glass-backdrop:blur(18px) saturate(1.12);--control-depth-edge:var(--control-depth-border);--control-depth-edge-soft:transparent;--control-depth-shadow:var(--surface-shadow-soft);--control-depth-shadow-hover:var(--surface-shadow-soft);--control-accent-depth-edge:transparent;--control-accent-depth-edge-hover:transparent;--control-accent-depth-shadow:var(--surface-shadow-soft);--control-accent-depth-shadow-hover:var(--surface-shadow-soft);--ambient-green-main:#a1d5bb1f;--ambient-green-soft:#d2ebdc16;--ambient-green-pale:#ebf6ef0d;--ambient-green-wash:#a1d5bb11;--ambient-white-soft:#ffffff06;--ambient-white-faint:#ffffff05;--ambient-grain-opacity:.018;--ambient-grain-blend:soft-light;--gallery-screenshot-shadow:0 14px 34px #00000047, 0 3px 10px #0000002e}}@media (width>=861px) and (height<=760px){.hero{padding-top:84px;padding-bottom:28px}h1{font-size:clamp(26px,3.1vw,40px)}.actions{margin-top:20px}.reader-paper{max-width:min(480px,54vw);padding:20px 28px;font-size:clamp(12px,.88vw,13.5px);line-height:1.56}.product-visual{gap:6px;padding-top:104px;padding-bottom:14px}.hero-screenshot img{max-height:56svh}.footer{margin-top:14px;padding-top:10px;padding-bottom:20px}}@media (width<=860px){html{scroll-snap-type:none}main{margin-top:0}.nav-download{margin-left:0}.download-split{grid-template-columns:minmax(52px,1fr) 26px}.hero,.feature-section{grid-template-columns:1fr}.hero{gap:42px;min-height:auto;padding-top:58px}h1{white-space:normal}.reader-paper{justify-self:stretch;max-width:100%;font-size:15px;transform:rotate(.6deg)}.product-visual{grid-template-rows:auto minmax(0,auto) 30px;place-content:center;gap:clamp(14px,3svh,26px);height:calc(100svh - 74px);min-height:calc(100svh - 74px);padding-top:clamp(58px,8svh,76px);padding-bottom:clamp(18px,4svh,34px)}.hero-screenshot img{width:min(100%,980px);max-width:100%;max-height:min(46svh,390px)}.gallery{height:calc(100svh - 74px);min-height:calc(100svh - 74px);padding:0}.gallery-picker{max-width:calc(100vw - 36px)}.gallery-linux-icon{width:clamp(64px,18vw,92px);height:clamp(72px,20vw,104px)}.window-body{min-height:320px}.window-content{padding:34px 28px}.download-panel{grid-template-columns:1fr}.download-format-page{width:100%;max-width:none;padding-left:18px;padding-right:18px}.download-format-grid{grid-template-columns:1fr;width:min(640px,100vw - 36px)}.download-format-grid-three{grid-template-columns:1fr}.download-format-card{justify-self:stretch;width:min(640px,100vw - 36px);min-height:300px;padding:46px 34px}.download-format-card img{width:136px;height:136px}.download-format-action{width:min(340px,100%)}.screenshot-row{grid-auto-columns:minmax(320px,84%);margin-inline:-8%;padding-inline:8%;scroll-padding-inline:8%}.screenshot-card{min-height:260px}.support-page,.donation-page{align-items:start;padding-top:clamp(108px,15svh,142px)}.changelog-page,.help-page{width:min(820px,100% - 36px);padding-top:clamp(108px,15svh,142px)}.support-question{min-height:58px;padding:16px 18px}.support-answer{padding:0 18px 20px}.support-platform-answers{gap:14px;padding-top:14px}}@media (width<=640px){.changelog-tabs{width:max-content}.changelog-tabs button{flex:none;padding-left:10px;padding-right:10px}.changelog-entry{grid-template-columns:1fr;gap:13px;padding:23px 20px 27px}.changelog-entry h2{font-size:32px}.help-question{min-height:58px;padding:16px 18px}.help-answer{padding:0 18px 20px}.help-platform-answers{grid-template-columns:1fr;gap:14px;padding-top:16px}.gallery-stage{--gallery-card-height:min(64svh, 520px);--gallery-first-card-half-width:min(44vw, 280px);--gallery-last-card-half-width:min(14.8svh, 120.25px)}.gallery-card:is([data-gallery-platform=macos],[data-gallery-platform=windows],[data-gallery-platform=linux]){width:min(88vw,560px);height:auto;max-height:none}.gallery-linux-visual{gap:clamp(8px,2.5vw,14px);padding:clamp(12px,4vw,22px)}.gallery-linux-icon{width:clamp(42px,14vw,72px);height:clamp(48px,16vw,82px)}.gallery-linux-visual p{font-size:clamp(11px,3.2vw,14px);line-height:1.4}.gallery-picker button{padding:0 10px;font-size:12px}.footer{flex-direction:column;align-items:stretch;gap:12px;padding-left:18px;padding-right:18px}.footer-right{gap:6px;width:100%}.footer-socials{justify-content:flex-start;width:100%}.footer-actions{justify-content:space-between;width:100%;display:flex}.footer-links{justify-content:flex-start}.footer-compliance{text-align:right;justify-content:flex-end;align-items:flex-end;gap:8px;min-width:0}.footer-record{white-space:nowrap;min-width:0;font-size:clamp(9px,2.7vw,10.5px);line-height:1.2}}@media (width<=560px){.ai-guide-shell{align-items:center;gap:24px;padding:72px 18px 42px}.ai-guide-panel{min-height:0}.ai-guide-title{width:calc(100% - 36px)}.ai-guide-actions{justify-content:center}.ai-api-box{grid-template-columns:1fr}.ai-api-box button{justify-self:flex-start}.ai-provider-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.ai-provider-choice{gap:10px;min-height:92px;padding:13px 10px}.ai-provider-choice img{width:30px;height:30px}.nav-links{gap:14px 18px}.hero,.section,.showcase,.support-page,.donation-page,.product-visual,.legal{padding-left:18px;padding-right:18px}.platform-menu-list{left:auto;right:0}.window-body{grid-template-columns:44px 1fr}.window-sidebar i{width:22px;height:22px}}@media (width<=280px){.nav{flex-direction:column;align-items:stretch;gap:10px;width:calc(100% - 24px);margin-top:12px;position:relative}.brand{justify-content:center;width:100%}.nav-links{flex-wrap:wrap;justify-content:flex-end;width:100%}.product-visual{gap:clamp(12px,2.4svh,20px);height:calc(100svh - 123px);min-height:calc(100svh - 123px);padding-top:clamp(8px,2svh,16px);padding-bottom:clamp(14px,3svh,24px)}.gallery{height:calc(100svh - 123px);min-height:calc(100svh - 123px)}.gallery-stage{--gallery-card-height:min(56svh, 400px);--gallery-last-card-half-width:min(12.95svh, 92.5px)}.hero-screenshot img{max-height:min(38svh,290px)}}