:root{--ink:#202426;--muted:#535b60;--paper:#f7f4ee;--line:#e8e5df;--accent:#f16b43;--sage:#f25533;--white:#fff;--cream:#f0e9e0;--sea:#f3ece2;--radius:8px;--shadow:0 1px 3px #16161808,0 12px 32px #1616180a;--display:Georgia,"STZhongsong","Songti SC",SimSun,serif;--body:Arial,"Microsoft YaHei",sans-serif;font-family:var(--body);color:var(--ink);background:white;font-synthesis:none;scroll-padding-top:100px;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;min-width:0}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}svg:where(:not(.yn-icon,.ypm-app-mark,.ypm-avatar,.yn-file-mark)){width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle;flex-shrink:0}
/* Phosphor paths carry their own weight; product marks and initials share a 32px canvas. */
/* Shared controls use 16px icons on every route; scene-specific sizes stay scoped. */
.yn-icon{display:inline-block;width:16px;height:16px;fill:currentColor;stroke:none;vertical-align:-.125em;flex-shrink:0}
.mobile-nav>a>.yn-icon{width:16px;height:16px}
.ypm-app-mark,.ypm-avatar{width:32px;height:32px;display:block;fill:none;stroke:none;flex:none}
.ypm-avatar{border-radius:50%}h1,h2,h3,h4,p{margin:0}h1,h2,h3{font-family:var(--display);font-weight:var(--heading-weight,400);letter-spacing:-.035em;text-wrap:balance;color:var(--ink)}h1{font-size:80px;line-height:1;letter-spacing:-.04em}h2{font-size:60px;line-height:1.1;letter-spacing:-.03em}h3{font-size:36px;line-height:1.15;letter-spacing:-.025em}:where(html[lang=zh-CN]) h1{font-size:64px;line-height:1.2;letter-spacing:-.045em}:where(html[lang=zh-CN]) h2{font-size:48px;line-height:1.25}:where(html[lang=zh-CN]) h3{font-size:32px;line-height:1.3}p{line-height:1.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid #f25533;outline-offset:5px}[hidden]{display:none!important}.container{width:calc(100% - 80px);max-width:1192px;margin-inline:auto}.eyebrow{display:block;font-size:14px;line-height:1.5;letter-spacing:0;color:var(--muted);margin-bottom:20px}.muted{color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:12px 21px;border:0;border-radius:999px;font-size:18px;line-height:1.4;font-weight:500;white-space:nowrap;transition:background .2s,color .2s,box-shadow .2s}.button svg{height:17px;width:17px;transition:transform .2s}.button:hover svg{transform:translateX(3px)}.button.primary{background:var(--accent);color:var(--ink)}.button.primary:hover{background:#e66038}.button.secondary{background:var(--paper);color:var(--ink)}.button.secondary:hover{background:#eee8df}.text-link{display:inline-flex;align-items:center;gap:9px;min-height:44px;font-weight:500;font-size:16px;line-height:1.4}.text-link svg{height:16px;width:16px;transition:transform .2s}.text-link:hover svg{transform:translateX(4px)}.text-link:hover{text-decoration:underline;text-underline-offset:5px}button.text-link{background:none;border:0;padding:0;text-align:left}.section-heading{margin-bottom:48px}.section-heading p{font-size:20px;line-height:1.5;color:var(--muted);margin-top:24px;max-width:640px}.skip-link{position:fixed;top:-100px;left:20px;padding:15px 20px;background:white;z-index:300}.skip-link:focus{top:10px}.announcement{margin:16px 20px 0;padding:10px 20px;min-height:38px;display:flex;align-items:center;justify-content:center;gap:5px;font-size:14px;background:var(--paper);border-radius:8px}.announcement a{display:flex;gap:5px;align-items:center}.announcement strong{font-weight:500}.announcement svg{height:13px;width:13px;margin-left:3px}.site-header{height:80px;position:sticky;top:0;z-index:100;background:#ffffffef;backdrop-filter:blur(16px)}.header-bar{width:calc(100% - 80px);max-width:1296px;height:100%;display:flex;align-items:center;justify-content:space-between;position:relative;gap:24px}.site-logo{display:flex;align-items:center;min-height:44px;flex-shrink:0}.site-logo img{width:130px;height:33px;object-fit:contain}.desktop-nav{display:flex;align-items:center;gap:26px;margin:auto}.desktop-nav a{font-size:16px;font-weight:500;min-height:44px;display:flex;align-items:center;gap:5px}.desktop-nav a:hover{color:var(--accent)}.desktop-nav a[aria-current]{color:var(--accent)}.header-actions{display:flex;gap:8px;align-items:center}.language-link{font-size:14px;font-weight:500;display:grid;place-items:center;min-height:38px;min-width:72px;padding:8px 17px;border-radius:24px;background:var(--paper)}.language-link:hover{background:#ece7df}.header-cta{font-size:16px;min-height:38px;padding:8px 17px}.header-cta svg{display:none}.menu-toggle,.mobile-nav{display:none}.closing-cta{width:calc(100% - 40px);max-width:none;min-height:394px;padding:80px 30px;margin:80px auto 0;border-radius:8px;text-align:center;position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 12% 125%,#ffa78d 0,transparent 50%),radial-gradient(ellipse at 90% 120%,#f5c984 0,transparent 50%),#f8f5f0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0}.closing-cta:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.22;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E")}.closing-cta .eyebrow{display:none}.closing-cta h2{font-size:60px;line-height:1.1;max-width:900px}.closing-cta h2 br{display:none}:where(html[lang=zh-CN]) .closing-cta h2{font-size:48px;line-height:1.3}.closing-cta p{font-size:20px;line-height:1.5;color:var(--muted);margin:24px auto;max-width:660px}.closing-cta p br{display:none}.closing-cta .button{font-size:18px}.site-footer{padding:80px 0 48px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:80px}.footer-brand p{font-size:16px;color:var(--muted);line-height:1.5;margin-top:24px}.footer-grid nav{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.footer-grid nav h3{font-family:var(--body);font-size:14px;letter-spacing:0;line-height:1.5;font-weight:500;margin:0 0 10px;color:#999}.footer-grid nav a{font-size:16px;min-height:34px;display:flex;align-items:center}.footer-grid nav a:hover{color:var(--accent)}.footer-belief>span{font-family:var(--display);font-size:24px;line-height:1.25;letter-spacing:-.02em}.footer-belief a{font-size:14px;display:flex;gap:7px;align-items:center;min-height:44px;margin-top:20px;color:var(--muted)}.footer-belief svg{height:14px;width:14px}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:13px;color:var(--muted);padding-top:24px;border-top:1px solid var(--line)}.back-top{font:inherit;min-height:44px;border:0;background:none;color:inherit}.mode-dock{position:fixed;bottom:18px;right:20px;z-index:110;display:flex;border:1px solid var(--line);background:#ffffffed;border-radius:999px;box-shadow:0 2px 8px #16161808;backdrop-filter:blur(10px)}.mode-dock a{border-radius:999px;display:flex;align-items:center;gap:7px;min-height:44px;padding:10px 15px;font-size:12px;color:var(--muted)}.mode-dock a:hover{background:var(--paper);color:var(--ink)}.mode-dock svg{height:14px;width:14px}.mode-dock a[data-reading=human] svg{transform:rotate(180deg)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.error-page{padding-block:120px}.error-page p{margin:30px 0}.anchor-alias{display:block;position:relative;top:-90px;height:0;visibility:hidden}.page-enter{animation:page-in .3s ease}@keyframes page-in{from{opacity:.5}to{opacity:1}}
@media(max-width:1100px){.desktop-nav{gap:20px}.desktop-nav a{font-size:14px}.header-bar{gap:18px}.header-cta{font-size:14px}.footer-grid{gap:30px}.footer-belief{display:none}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.container{width:calc(100% - 48px)}}
@media(max-width:760px){:root{scroll-padding-top:86px}.announcement{margin:10px 12px 0;font-size:11px;min-height:33px;padding:8px 10px}.announcement .announcement-intro{display:none}.site-header{height:70px}.header-bar{width:calc(100% - 40px)}.site-logo img{width:110px;height:28px}.desktop-nav,.header-cta{display:none}.language-link{font-size:12px;min-width:48px;padding:8px 12px}.header-actions{gap:10px}.menu-toggle{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;width:40px;height:44px;padding:0;border:0;background:none}.menu-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.mobile-nav:not([hidden]){display:flex;position:absolute;top:70px;left:0;right:0;padding:12px 24px 30px;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #16161808}.mobile-nav a{min-height:58px;display:flex;align-items:center;justify-content:space-between;font-size:18px;border-bottom:1px solid var(--line)}body.menu-open{overflow:hidden}.container{width:calc(100% - 40px)}h1{font-size:46px;line-height:1.05;letter-spacing:-.04em}:where(html[lang=zh-CN]) h1{font-size:40px;line-height:1.23}h2{font-size:38px;line-height:1.13}:where(html[lang=zh-CN]) h2{font-size:34px;line-height:1.3}h3{font-size:29px;line-height:1.18}:where(html[lang=zh-CN]) h3{font-size:27px;line-height:1.3}.button{font-size:16px;min-height:48px;padding:12px 19px;gap:7px}.text-link{font-size:15px}.eyebrow{font-size:12px;margin-bottom:16px}.section-heading{margin-bottom:32px}.section-heading p{font-size:17px;line-height:1.55;margin-top:20px}.closing-cta{width:calc(100% - 24px);margin-top:60px;padding:60px 24px;min-height:340px}.closing-cta h2{font-size:38px}.closing-cta h2 br{display:block}:where(html[lang=zh-CN]) .closing-cta h2{font-size:34px}.closing-cta p{font-size:17px;line-height:1.5;margin:24px auto}.closing-cta .button{font-size:16px}.site-footer{padding:60px 0 80px}.footer-grid{grid-template-columns:1fr 1fr;gap:38px 25px;padding-bottom:40px}.footer-brand{grid-column:1/-1}.footer-brand p{font-size:15px}.footer-grid nav a{font-size:15px;min-height:36px}.footer-grid nav h3{font-size:13px}.footer-bottom{font-size:11px;gap:12px;flex-wrap:wrap}.back-top{margin-left:auto}.mode-dock{right:12px;bottom:12px}.mode-dock a{font-size:12px;min-height:44px;padding:10px 15px}}
@media(max-width:370px){.container{width:calc(100% - 32px)}h1{font-size:41px}:where(html[lang=zh-CN]) h1{font-size:35px}.button{font-size:14px;padding:12px 17px}.announcement{font-size:10px}.header-bar{width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.site-ending{margin-top:80px;isolation:isolate;position:relative;overflow:hidden;color:white;background:radial-gradient(ellipse at 78% 26%,#ffbb7499 0,transparent 38%),radial-gradient(ellipse at 14% 75%,#ff340ce6 0,transparent 60%),linear-gradient(180deg,#fac3b9 0%,#fa7654 22%,#fc522b 57%,#ff481d 100%)}.site-ending:before{content:"";position:absolute;inset:0;opacity:.16;z-index:-1;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E")}.closing-cta{background:none;width:100%;max-width:none;margin:0;padding:80px 24px 100px;min-height:580px;justify-content:flex-start;border-radius:0}.closing-cta:before{display:none}.closing-cta h2{color:white;font-size:80px;line-height:1;letter-spacing:-.04em;max-width:920px}.closing-cta h2 br{display:block}:where(html[lang=zh-CN]) .closing-cta h2{font-size:64px;line-height:1.22}.closing-cta p{font-size:24px;line-height:1.35;color:#fff8e4c9;max-width:680px;margin:20px auto 34px}.ending-actions{display:flex;align-items:center;gap:16px;justify-content:center}.closing-cta .button.primary{background:#f8f5f0;color:#161618}.closing-cta .button.primary:hover{background:white}.closing-cta .button.secondary{background:transparent;border:1px solid #fff3d766;color:white}.closing-cta .button.secondary:hover{background:#ffffff17}.site-footer{padding-top:55px;color:#fff8ef}.site-footer .site-logo img{filter:brightness(0) invert(1)}.footer-brand p{color:#fff3ddc4;font-size:14px}.footer-grid{grid-template-columns:1fr 1fr 1fr 1fr;gap:0;padding-bottom:45px}.footer-grid>nav,.footer-belief{padding-left:24px;border-left:1px solid #ffe1c747}.footer-grid nav h3{font:20px/1.3 var(--display);color:white;margin-bottom:14px}.footer-grid nav a{color:#fff9ee;font-size:16px}.footer-grid nav a:hover{color:white;text-decoration:underline;text-underline-offset:4px}.footer-belief>span{color:#fff9ee;font-size:23px}.footer-belief a{color:#fff5e1bd}.footer-bottom{border-top-color:#ffe1c745;color:#fff3dabb;font-size:12px}.footer-bottom .back-top{color:#fff3dabb}
@media(max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr 1fr}.closing-cta h2{font-size:66px}.closing-cta{min-height:520px;padding-bottom:65px}.closing-cta p{font-size:21px}}
@media(max-width:760px){.site-ending{margin-top:60px}.closing-cta{min-height:425px;padding:60px 22px 50px}.closing-cta h2{font-size:44px;line-height:1.08}:where(html[lang=zh-CN]) .closing-cta h2{font-size:38px;line-height:1.25}.closing-cta p{font-size:18px;line-height:1.5;margin:24px auto 30px}.ending-actions{gap:10px;flex-wrap:wrap}.closing-cta .button{font-size:15px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px 0}.footer-grid>.footer-brand{grid-column:1/-1;padding:0}.footer-grid>nav{padding-left:17px}.footer-grid>nav:nth-child(2){padding-left:0;border:0}.site-footer{padding-top:30px}.footer-grid nav h3{font-size:21px}.footer-grid nav a{font-size:14px}.footer-bottom{font-size:11px}.footer-brand p{font-size:14px}.site-ending .footer-belief{display:none}}
@media(max-width:370px){:where(html[lang=zh-CN]) .closing-cta h2{font-size:33px}.closing-cta h2{font-size:38px}.ending-actions .button{font-size:13px;padding:11px 16px}}

@media(min-width:761px){.desktop-nav{position:absolute;left:50%;transform:translateX(-50%);margin:0}.header-cta{order:-1}}@media(max-width:760px){.ending-actions{flex-direction:column;gap:12px}.ending-actions .button{min-width:198px;min-height:50px;font-size:16px}}

@media(max-width:760px){.mobile-reading{display:flex;gap:10px;align-items:center;margin-top:16px;font-size:12px}.mobile-reading>span{margin-right:auto;color:var(--muted)}.mobile-reading a{border:1px solid var(--line);min-height:44px;font-size:13px;justify-content:center;gap:7px;border-radius:30px;padding:8px 14px}.mode-dock{position:static;width:max-content;margin:20px auto;box-shadow:none}.site-footer{padding-bottom:28px}}
@media(max-width:400px){:where(html[lang=zh-CN]) .closing-cta h2{font-size:clamp(27px,calc(10vw - 5px),35px)}}

/* Shared interaction rhythm and safe intermediate breakpoints. */
:root{--ease-out:cubic-bezier(.22,1,.36,1);--ease-ui:cubic-bezier(.2,0,0,1)}
::selection{background:#f8c2a9;color:#161618}.button{transition:background .18s,color .18s,box-shadow .18s,transform .18s var(--ease-out)}.button:active{transform:translateY(1px)}.button.primary:hover{box-shadow:0 4px 12px #be3b1821}.language-link,.mode-dock a{transition:background .18s,color .18s}.editorial-illustration{display:block;width:100%;height:100%;object-fit:cover}.site-header{transition:box-shadow .2s}.site-header.is-scrolled{box-shadow:0 1px 0 #1616180a}.desktop-nav a{position:relative}.desktop-nav a:after{content:"";position:absolute;left:0;right:0;bottom:5px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease-out)}.desktop-nav a:hover:after,.desktop-nav a[aria-current]:after{transform:scaleX(1)}
@media(max-width:1100px){.mode-dock{position:static;width:max-content;margin:20px auto;box-shadow:none}}
@media(min-width:761px) and (max-width:1000px){.site-header{height:70px}.desktop-nav,.header-cta{display:none}.header-actions{margin-left:auto}.menu-toggle{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;width:40px;height:44px;padding:0;border:0;background:none}.menu-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.mobile-nav:not([hidden]){display:flex;position:absolute;top:70px;left:0;right:0;padding:12px 24px 30px;flex-direction:column;background:white;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #16161808}.mobile-nav a{min-height:54px;display:flex;align-items:center;justify-content:space-between;font-size:18px;border-bottom:1px solid var(--line)}body.menu-open{overflow:hidden}.mobile-reading{display:flex;gap:10px;align-items:center;margin-top:16px;font-size:13px}.mobile-reading>span{margin-right:auto;color:var(--muted)}.mobile-reading a{border:1px solid var(--line);min-height:44px;font-size:13px;justify-content:center;gap:7px;border-radius:30px;padding:8px 14px}}
@media(prefers-reduced-motion:reduce){.button,.language-link,.mode-dock a,.site-header,.desktop-nav a:after{transition:none}.button:active{transform:none}}

:root{--action:#b94327}.button.primary{background:var(--accent);color:var(--ink)}.button.primary:hover{background:#e66038}.desktop-nav a:hover,.desktop-nav a[aria-current]{color:var(--action)}.text-link{color:var(--action)}.button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline-color:var(--action)}.closing-cta .button.primary{background:#f8f5f0;color:#161618}.closing-cta .button.primary:hover{background:white}

.site-ending{background:radial-gradient(ellipse at 93% 40%,#ee77451a 0,transparent 42%),linear-gradient(180deg,#cc4428 0%,#c73e24 35%,#b5351e 65%,#9e2c19 100%)}.closing-cta p{color:#fff8ef}.footer-brand p,.footer-belief a,.footer-bottom,.footer-bottom .back-top{color:#fff2e3}.closing-cta .button.secondary{border-color:#fff3d799}

.editorial-illustration{stroke:none}

/* Page facts are a secondary utility, distinct from the on-page audience demo. */
.mobile-reading svg{width:15px;height:15px}.mobile-reading a[data-reading=human] svg{transform:rotate(180deg)}.mobile-reading a:hover{background:var(--paper)}.mobile-nav a[aria-current=page]{font-weight:500}.site-ending :is(a,button):focus-visible{outline-color:var(--paper)}
@media(min-width:1101px){.footer-bottom{padding-right:190px}}
@media(max-width:1000px){.menu-toggle{width:44px}.language-link{min-height:44px}.mobile-nav:not([hidden]){max-height:calc(100dvh - 70px);overflow-y:auto;overscroll-behavior:contain}.mode-dock{max-width:calc(100% - 32px)}}

/* Yonaris seven-point craft: one legible interface system, with an editorial display layer. */
@font-face{font-family:"Yonaris UI";src:url('/assets/yonaris-ui-400.ttf') format('truetype');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:"Yonaris UI";src:url('/assets/yonaris-ui-500.ttf') format('truetype');font-style:normal;font-weight:500;font-display:swap}
:root{--body:Arial,"Yonaris UI","Noto Sans SC","Microsoft YaHei UI",sans-serif;--ui-ink:#202426;--ui-muted:#535b60;--ui-line:#e8e5df;--ui-surface:#fff;--ui-peach:#f8d3bd;--ui-champagne:#f5e8d5;--ui-sage:#d8e3d9;--ui-blue:#617786;--shadow-window:0 2px 5px #39434a05,0 18px 48px -24px #4e493b45;--shadow-float:0 1px 2px #46352706,0 18px 34px -15px #624b392c;--radius-window:12px;--radius-control:7px}
body{font-family:var(--body);font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button,input,select,textarea{font-family:var(--body)}
.announcement{font-size:12px;letter-spacing:.015em;background:#f7f3ec}
.announcement strong{font-weight:500}.announcement svg{margin-left:7px}
.desktop-nav{gap:30px}.desktop-nav a{font-size:14px;font-weight:500;color:#373c3e}.desktop-nav a:after{bottom:7px}
.header-actions{gap:10px}.language-link{font-size:12px;font-weight:500;min-width:54px;min-height:40px;padding:10px 15px;background:#f7f5f1}.header-cta{font-size:14px;font-weight:500;min-height:40px;padding:10px 18px}
.button{font-size:16px;line-height:1.5;font-weight:500;min-height:48px;padding:12px 21px;gap:10px;box-shadow:none}
.button.primary{box-shadow:inset 0 1px 0 #ffffff38,0 1px 2px #98552612}.button.secondary{box-shadow:inset 0 0 0 1px #e9e5df}
.button:focus-visible,.language-link:focus-visible{outline-width:2px;outline-offset:4px}.button svg{width:16px;height:16px}
.eyebrow{font-size:12px;line-height:1.5;letter-spacing:.06em;font-weight:500}
.section-heading p{line-height:1.65}.text-link{font-size:15px;font-weight:500}
.mode-dock{border-color:#e7e7e3;box-shadow:0 3px 18px #222b3008}.mode-dock a{font-size:12px;color:#5b6367;padding:10px 15px}
.footer-grid nav h3{font-family:var(--body);font-size:13px;font-weight:500;letter-spacing:.025em}.footer-grid nav a{font-size:14px;min-height:38px}.footer-brand p{line-height:1.7}.footer-belief>span{font-size:22px;line-height:1.35}.footer-bottom{font-size:12px}.site-footer .text-link{color:inherit}
.editorial-illustration{stroke:none;stroke-width:0;overflow:visible}
.closing-cta{min-height:480px;padding-bottom:64px}.closing-cta p{font-size:20px;line-height:1.55;max-width:630px}.site-footer{padding-top:36px}.footer-grid{padding-bottom:38px}
@media(max-width:1000px){.header-actions{gap:8px}.language-link{min-height:44px}.mobile-nav a{font-size:16px;font-weight:400;line-height:1.5}.mobile-nav a[aria-current=page]{color:var(--action);font-weight:500}.mobile-reading a{font-size:13px}.announcement{font-size:12px}}
@media(max-width:760px){.announcement{font-size:11px;letter-spacing:0}.button{font-size:15px;min-height:48px;padding:12px 19px}.eyebrow{font-size:11px;letter-spacing:.04em}.footer-grid nav a{font-size:14px}.footer-grid nav h3{font-size:12px}.footer-brand p{font-size:14px}.text-link{font-size:14px}.mode-dock a{font-size:12px}}
@media(max-width:760px){.closing-cta{min-height:0;padding:56px 22px 48px}.closing-cta p{font-size:16px;line-height:1.75;max-width:325px;margin:22px auto 26px}.site-footer{padding-top:25px}.footer-grid{padding-bottom:32px}}

/* 2026-10-05: one optical type scale; Chinese uses the packaged UI family. */
:root{--heading-weight:400;--space-section:112px;--space-section-small:72px;--radius-surface:14px;--line-strong:#d7d7d2}
html[lang=zh-CN]{--display:"Yonaris UI","Noto Sans SC","Microsoft YaHei UI",sans-serif;--heading-weight:500}
html[lang=zh-CN] :is(h1,h2,h3){font-weight:500;letter-spacing:-.025em}
html[lang=zh-CN] :is(strong,b){font-weight:500}
.announcement{margin-inline:40px;background:#f8f6f2;color:#535b60;border:1px solid #f0ece5}
.header-bar{margin-inline:auto}
.site-header{background:#ffffffed;border-bottom:1px solid transparent}
.site-header.is-scrolled{border-bottom-color:#eae6df;box-shadow:0 3px 18px #222b3003}
.desktop-nav a{min-height:48px;letter-spacing:.005em;color:#444b4e}
.desktop-nav a:after{bottom:8px;left:1px;right:1px}
.language-link{background:transparent;border:1px solid #e7e4de;color:#535b60}
.language-link:hover{background:#f7f4ee;border-color:#d9d5ce}
.button{letter-spacing:0;transition:background .18s,color .18s,box-shadow .18s,transform .18s var(--ease-out)}
.button.primary{color:#221e1b;box-shadow:inset 0 1px 0 #ffffff38,0 2px 3px #8b39150d}
.button.primary:hover{box-shadow:inset 0 1px 0 #ffffff38,0 4px 12px #bb472021}
.button.secondary{background:#fff;box-shadow:inset 0 0 0 1px #deded9;color:#31383c}
.button.secondary:hover{background:#f7f4ee;box-shadow:inset 0 0 0 1px #cccfc9}
.button:active{box-shadow:inset 0 2px 3px #512b160d;transform:translateY(1px)}
.button:focus-visible,.language-link:focus-visible{outline-color:#b94327}
.eyebrow{color:#6d716e;font-size:12px;letter-spacing:.08em}
.section-heading p{color:var(--muted);line-height:1.7}
html[lang=zh-CN] .closing-cta h2{font-size:56px;line-height:1.3;letter-spacing:-.025em}
.closing-cta p{max-width:660px;line-height:1.7}
.site-ending .button.secondary{color:#fff;background:transparent;box-shadow:inset 0 0 0 1px #fff8ee80;border:0}
.site-ending .button.secondary:hover{background:#ffffff12;box-shadow:inset 0 0 0 1px #fff8eee0}
.site-ending .button.primary{color:#202426;background:#fffaf1}
.site-ending .button.primary:hover{background:white}
.site-footer .footer-bottom{font-size:12px;line-height:1.75}
@media(max-width:1100px){.header-bar{width:calc(100% - 48px)}.announcement{margin-inline:24px}}
@media(max-width:760px){:root{--space-section:72px;--space-section-small:48px}.header-bar{width:calc(100% - 40px)}.announcement{margin-inline:20px;font-size:12px;line-height:1.5;padding:9px 12px}.language-link{font-size:12px}.eyebrow{font-size:12px;letter-spacing:.045em}.closing-cta p{font-size:16px}html[lang=zh-CN] .closing-cta h2{font-size:36px;line-height:1.35}.footer-bottom{line-height:1.7}}
@media(max-width:370px){.header-bar{width:calc(100% - 32px)}.announcement{margin-inline:16px}html[lang=zh-CN] .closing-cta h2{font-size:32px}}
/* Object marks have a paper silhouette, distinct from app tiles and role avatars. */
.yn-file-mark{display:block;width:24px;height:28px;flex:none;fill:currentColor;stroke:none;color:#4a7187;overflow:visible}
.ypm-app-mark{overflow:visible}
.ypm-avatar{overflow:hidden;isolation:isolate}

/* 2026-10-08 — shared finishing layer. Keep the approved typefaces and geometry. */
:root{--ease-out:cubic-bezier(.22,1,.36,1);--action:#aa4329;--focus:#8d3f2d}
::selection{background:#f4d3bb;color:#243537}
.site-header{backdrop-filter:blur(18px) saturate(1.15)}
.desktop-nav a{position:relative;transition:color .18s ease}
.desktop-nav a::after{content:"";position:absolute;left:0;right:0;bottom:9px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease-out)}
.desktop-nav a:hover::after,.desktop-nav a:focus-visible::after,.desktop-nav a[aria-current=page]::after{transform:scaleX(1)}
.button.primary{background:#f16b43;box-shadow:inset 0 1px 0 #ffffff4d,0 1px 2px #58301612}
.button.primary:hover{background:#e96039;box-shadow:inset 0 1px 0 #ffffff4d,0 4px 10px -5px #9e412d5c}
.text-link{color:var(--action);text-decoration-thickness:1px}
:is(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline-color:var(--focus)}
.language-link{min-width:48px;min-height:44px}
.announcement a{line-height:1.65}
.mode-dock{box-shadow:0 1px 3px #2d383908,0 8px 20px -12px #2d383922}
.mode-dock a{color:#5b6363}

/* A warm invitation closes the story; the darker colophon remains quiet. */
.site-ending{color:var(--ink);background:#f8f6f1;border-top:1px solid #e9e3d8}
.site-ending::before{display:none}
.closing-cta{isolation:isolate;min-height:440px;padding:76px 24px 72px;justify-content:center;background:radial-gradient(ellipse at 86% 20%,#f4d4bb66,transparent 48%),radial-gradient(ellipse at 5% 98%,#d6e2da5c,transparent 46%)}
.closing-cta::after{content:"";position:absolute;z-index:-1;left:12%;right:12%;top:0;height:1px;background:linear-gradient(90deg,transparent,#c9855966,transparent)}
.closing-cta .eyebrow{display:block;color:#7a6151;letter-spacing:.075em;margin-bottom:24px;font-size:11px}
.closing-cta h2{color:#263233;font-size:62px;line-height:1.12;letter-spacing:-.035em;max-width:960px}
html[lang=zh-CN] .closing-cta h2{font-size:50px;line-height:1.32;letter-spacing:-.03em}
.closing-cta p{font-size:17px;line-height:1.7;color:#616962;max-width:580px;margin:24px auto 28px;text-wrap:pretty}
.site-ending .button.primary{background:#f16b43;color:#281f18;box-shadow:inset 0 1px 0 #ffffff5c,0 2px 3px #a2583012}
.site-ending .button.primary:hover{background:#e96039}
.site-ending .button.secondary{background:#fffaf4;color:#354143;box-shadow:inset 0 0 0 1px #ddd8ce}
.site-ending .button.secondary:hover{background:white;box-shadow:inset 0 0 0 1px #bfbeb5}
.site-ending :is(a,button):focus-visible{outline-color:#cf744b}
.site-footer{background:#263235;color:#f6f3eb;padding-top:54px;padding-bottom:30px}
.footer-grid{gap:40px;padding-bottom:48px;grid-template-columns:1.3fr 1fr 1fr 1.2fr}
.footer-grid>nav,.footer-belief{border:0;padding-left:0}
.footer-brand p{font-size:14px;line-height:1.8;color:#c4cdc9;max-width:240px}
.footer-grid nav h3{font:500 12px/1.5 var(--body);color:#b4beba;letter-spacing:.05em;margin-bottom:12px}
.footer-grid nav a{font-size:14px;min-height:38px;color:#f2f1e9;text-decoration-thickness:1px;transition:color .18s}
.footer-grid nav a:hover{color:#f3bb99}
.footer-belief>span{font-size:25px;line-height:1.35;color:#e8eade}
.footer-belief a{color:#c4cdc9;font-size:12px;line-height:1.6}
.site-footer .footer-bottom{border-top:1px solid #ffffff1c;color:#b8c3bf;font-size:12px;padding-top:16px}
.footer-bottom .back-top{color:#d9dfd9}
.site-footer .site-logo img{width:120px;height:auto}
@media(max-width:1100px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.closing-cta h2{font-size:54px}}
@media(max-width:760px){
 .closing-cta{min-height:0;padding:56px 20px 50px}
 .closing-cta .eyebrow{font-size:10px;margin-bottom:20px;letter-spacing:.06em}
 .closing-cta h2{font-size:38px;line-height:1.2;max-width:440px}
 html[lang=zh-CN] .closing-cta h2{font-size:clamp(27px,8.1vw,34px);line-height:1.4;letter-spacing:-.04em}
 .closing-cta p{font-size:15px;line-height:1.8;max-width:335px;margin:20px auto 25px}
 .ending-actions{flex-direction:row;flex-wrap:wrap;gap:10px}
 .ending-actions .button{font-size:14px;min-width:0;min-height:46px;padding:12px 17px}
 .site-footer{padding:38px 0 22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px;padding-bottom:28px}
 .footer-grid>.footer-brand{grid-column:1/-1}
 .footer-grid>nav{padding:0}
 .footer-grid nav h3{font-size:12px}
 .footer-grid nav a{font-size:14px;min-height:44px}
 .site-footer .footer-bottom{font-size:11px;gap:8px 14px}
 .footer-brand p{margin-top:18px}
 .footer-bottom .back-top{margin-left:auto}
}
@media(prefers-reduced-motion:reduce){.desktop-nav a::after,.button,.language-link,.text-link svg{transition:none}}