@font-face{font-family:Common Source Han Serif;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/SourceHanSerifSubset.woff2)format("woff2")}@font-face{font-family:Common Source Han Serif;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/SourceHanSerifBoldSubset.woff2)format("woff2")}:root{color-scheme:light dark;--font-ui:ui-sans-serif, "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif:"Common Source Han Serif", serif;--font-custom-serif:var(--font-serif);--radius-control:8px;--radius-surface:10px;--accent-base:#0f6a4a;--accent-soft-bg:#0f6a4a21;--accent-soft-strong:#0f6a4a33;--bg-app:#f5f5f5;--bg-surface:#fafafa;--bg-elevated:#fff;--bg-control:#fafafa;--bg-control-hover:#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:#f4f7f5;--surface-shadow:0 10px 30px #00000014;--surface-shadow-soft:0 4px 14px #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=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:contents!important}html{scroll-behavior:smooth;scroll-snap-type:y mandatory;scroll-padding-top:0}body{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}a{color:inherit}h1,h2,h3,p{margin-top:0}h1,h2{font-family:var(--font-serif)}.site{min-height:100vh}.page-site{flex-direction:column;min-height:100vh;display:flex}.page-site main{flex:1}main{margin-top:-77px}.nav{z-index:100;border:1px solid color-mix(in srgb, var(--border-subtle) 72%, transparent);border-radius:var(--radius-surface);background:color-mix(in srgb, var(--bg-app) 88%, transparent);backdrop-filter:blur(18px);width:calc(100% - 32px);max-width:1040px;box-shadow:var(--surface-shadow-soft);justify-content:space-between;align-items:center;gap:16px;margin:12px auto 0;padding:7px 8px 7px 12px;animation:.62s both nav-enter;display:flex;position:sticky;top:12px}.skip-shell-animation .nav,.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:700;text-decoration:none;display:inline-flex}.brand img{border-radius:7px;width:24px;height:24px}.brand span{font-family:var(--font-custom-serif);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.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:700}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);font-weight:400;line-height:.92;display:flex}h1>span{animation:.76s both text-enter;display:block}h1 strong{font-weight:700}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,#typewriter-text{white-space:nowrap;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;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}.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%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@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 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 var(--accent-base);border-radius:var(--radius-control);background:var(--accent-base);min-height:42px;color:var(--text-on-accent);justify-content:center;align-items:center;padding:0 18px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.button.secondary{border-color:var(--border-subtle);background:var(--bg-control);color:var(--text-primary)}.button:hover{filter:brightness(.98)}.download-split{border:1px solid var(--accent-base);background:var(--accent-base);color:var(--text-on-accent);box-shadow:var(--surface-shadow-soft);border-radius:7px;grid-template-columns:minmax(56px,1fr) 28px;align-items:stretch;display:inline-grid;position:relative;overflow:visible}.download-split:after{background:color-mix(in srgb, var(--text-on-accent) 34%, transparent);content:"";pointer-events:none;width:1px;position:absolute;top:0;bottom:0;right:28px}.nav-download{box-shadow:none;align-self:center}.download-main{min-height:30px;color:var(--text-on-accent);white-space:nowrap;justify-content:center;align-items:center;padding:0 10px;font-size:13px;font-weight:700;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-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 summary{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 summary{width:28px;min-height:30px;color:var(--text-on-accent);cursor:pointer;justify-content:center;align-items:center;list-style:none;display:inline-flex}.download-menu summary::-webkit-details-marker{display:none}.download-menu summary:after{content:"";background:currentColor;width:12px;height:12px;transition:transform .16s cubic-bezier(.18,.9,.2,1);transform:rotate(0);mask:url(/icons/chevron.down.svg) 50%/contain no-repeat}.download-menu[open]:not(.is-closing) summary:after{transform:rotate(180deg)}.platform-menu-list{z-index:200;border:1px solid var(--border-subtle);border-radius:var(--radius-control);background:var(--bg-elevated);min-width:148px;box-shadow:var(--surface-shadow-soft);transform-origin:100% 0;will-change:opacity, transform;padding:6px;display:grid;position:absolute;top:calc(100% + 7px);right:0}.download-menu[open]:not(.is-closing) .platform-menu-list{animation:.14s cubic-bezier(.18,.9,.2,1) both menu-enter-down}.download-menu.is-closing .platform-menu-list{pointer-events:none;animation:.12s both menu-exit-down}.platform-menu-list a{min-height:34px;color:var(--text-secondary);border-radius:6px;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(--bg-control);color:var(--text-primary);outline:none}.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);transform:none}.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}.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{background:var(--bg-control-hover);border-radius:7px;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 h1{text-align:left;white-space:normal;align-items:flex-start;margin-bottom:28px;font-size:clamp(30px,4vw,48px);line-height:1.12}.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:-12px;margin-bottom:26px;font-size:13px;line-height:1.4}.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,minmax(0,1fr));justify-items:stretch;gap:30px;width:min(1040px,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:calc(100svh - 170px);display:grid}.download-format-card{border:1px solid var(--sidebar-glass-border);border-radius:var(--radius-surface);background:var(--bg-control);width:100%;min-height:360px;box-shadow:var(--surface-shadow-soft);text-align:center;place-content:center;justify-items:center;gap:20px;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);margin:2px 0 0;font-size:18px;font-weight:500;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{border:1px solid var(--sidebar-glass-border);border-radius:var(--radius-control);background:color-mix(in srgb, var(--bg-control-hover) 78%, transparent);min-height:34px;color:var(--text-secondary);font-family:var(--font-ui);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:var(--accent-base);background:var(--accent-base);color:var(--text-on-accent);text-decoration:none}.download-arch-options>a:hover,.download-arch-options>a:focus-visible{filter:brightness(.96)}.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:var(--accent-base);background:var(--accent-base);color:var(--text-on-accent);cursor:pointer}a.download-format-action:hover,a.download-format-action:focus-visible{filter:brightness(.96)}.redirect-page{place-items:center;min-height:60vh;padding:120px 24px;display:grid}.redirect-card{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);width:min(520px,100%);box-shadow:var(--surface-shadow-soft);text-align:center;padding:28px}.redirect-card h1{margin:0 0 10px;font-size:24px;line-height:1.25}.redirect-card p{color:var(--text-secondary);margin:0 0 18px}.redirect-link{border-radius:var(--radius-control);background:var(--accent-base);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 h1{text-align:center;white-space:normal;align-items:center;margin:0;font-size:clamp(30px,4vw,44px);line-height:1.12}.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{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);width:min(620px,100%);box-shadow:var(--surface-shadow-soft);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;justify-content:center;align-items:center;padding:0 20px;font-size:15px;display:inline-flex}.ai-guide-next,.ai-api-box button{border:1px solid var(--accent-base);background:var(--accent-base);color:var(--text-on-accent)}.ai-guide-secondary{border:1px solid var(--border-subtle);background:var(--bg-control);color:var(--text-primary)}.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{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:color-mix(in srgb, var(--bg-elevated) 78%, transparent);min-height:108px;color:var(--text-primary);font:inherit;cursor:pointer;box-shadow:var(--surface-shadow-soft);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:focus-visible{border-color:var(--border-strong);background:var(--bg-elevated)}.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{border:1px solid var(--border-subtle);border-radius:var(--radius-surface);background:var(--bg-elevated);width:min(560px,100%);box-shadow:var(--surface-shadow-soft);flex-direction:column;gap:14px;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:700;display:flex}.ai-result-logo{background:center / contain no-repeat var(--result-logo);flex:none;width:28px;height:28px;display:block}.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{border:1px solid var(--border-strong);background:var(--bg-control);color:#0000;border-radius:5px;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(--accent-base);background:var(--accent-base);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(--border-subtle);border-radius:var(--radius-control);background:var(--bg-control);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;min-height:44px;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,.ai-pseudo-input a{border:1px solid var(--border-subtle);background:color-mix(in srgb, var(--bg-elevated) 74%, transparent);min-width:44px;min-height:34px;color:var(--text-secondary);font:inherit;cursor:pointer;border-radius:6px;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 a{border-color:var(--accent-base);background:var(--accent-base);color:var(--text-on-accent)}.ai-pseudo-input .ai-copy-subtle{border-color:var(--border-subtle);background:color-mix(in srgb, var(--bg-elevated) 74%, transparent);min-width:44px;color:var(--text-secondary)}.ai-pseudo-input button:hover,.ai-pseudo-input .ai-copy-subtle:hover{border-color:var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary);filter:none}.ai-pseudo-input a:hover{border-color:var(--accent-base);background:var(--accent-base);color:var(--text-on-accent);filter:brightness(.96)}.support-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}.support-hero{display:block}.support-copy{max-width:760px}.support-copy h1{text-align:left;white-space:normal;align-items:flex-start;margin-bottom:clamp(26px,4.4svh,42px);font-size:clamp(30px,4.3vw,52px);line-height:1.08}.support-longtext{max-width:740px;min-height:10em;font-family:var(--font-serif)}.support-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(30px,5svh,48px);display:block}.support-cta{flex-direction:column;align-items:center;gap:9px;display:inline-flex}.support-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}.support-method strong,.support-support strong{font-weight:700}.support-method:hover{color:#8f66df;background:#8f66df26;border-color:#8f66df9e;text-decoration:none}.support-method-icon{background:currentColor;width:18px;height:18px;mask:url(/aifadian.svg) 50%/contain no-repeat}.support-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 0 clamp(22px,4svh,34px);font-size:13px;animation:.76s .22s both text-enter;display:flex}.footer-right{justify-items:end;gap:2px;min-width:0;display:grid}.footer strong{color:var(--text-primary);font-family:var(--font-serif)}.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:28px;color:var(--text-muted);align-items:center;gap:15px;display:flex}.footer-social{opacity:.86;flex:none;align-items:center;gap:7px;display:inline-flex}.footer-social-xiaohongshu{--icon:url(/xiaohongshu.svg)}.footer-social-icon{object-fit:contain;width:21px;height:21px}.footer-social-id{font-family:var(--font-ui);font-size:13px;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:wrap;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:5px}.footer-police-record img{object-fit:contain;flex:none;width:auto;height:14px}.footer .language-menu summary{opacity:.84;border-radius:6px;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{width:28px;height:28px;color:var(--text-muted);cursor:pointer;border-radius:8px;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(--bg-control);color:var(--text-primary)}.language-menu-list{z-index:200;border:1px solid var(--border-subtle);border-radius:var(--radius-control);background:var(--bg-elevated);min-width:150px;box-shadow:var(--surface-shadow-soft);transform-origin:100% 100%;will-change:opacity, transform;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{min-height:34px;color:var(--text-secondary);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:6px;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(--bg-control);color:var(--text-primary);outline:none}@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){.download-menu summary:after,.language-menu summary,.download-menu[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-soft-bg:#0f6a4a29;--accent-soft-strong:#0f6a4a3b;--bg-app:#141414;--bg-surface:#1d1d1d;--bg-elevated:#1d1d1d;--bg-control:#171717;--bg-control-hover:#202020;--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:#edf3ee;--surface-shadow:0 12px 30px #00000057;--surface-shadow-soft:0 4px 16px #0000003d}}@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(56px,1fr) 28px}.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)}.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{align-items:start;padding-top:clamp(108px,15svh,142px)}.support-copy h1{font-size:clamp(30px,8vw,44px)}}@media (width<=640px){.footer{flex-direction:column;align-items:stretch;gap:12px;padding-left:18px;padding-right:18px}.footer-right{gap:6px;width:100%}.footer-actions{justify-content:space-between;width:100%;display:flex}.footer-links{justify-content:flex-start}.footer-compliance{text-align:right;flex-direction:column;justify-content:flex-end;align-items:flex-end;gap:4px;min-width:0}.footer-record{white-space:normal;min-width:0;line-height:1.35}}@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,.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<=360px){.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)}.hero-screenshot img{max-height:min(38svh,290px)}}
