:root{--ink:#1d1d1f;--muted:#6e6e73;--blue:#0066cc;--button:#0071e3;--surface:#f5f5f7;--line:#d2d2d7;--max:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;color:var(--ink);background:#fff;font-family:"STZhongsong","华文中宋","Songti SC","SimSun",serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:5px}p,h1,h2,h3,figure{margin:0}a:hover{color:var(--blue)}[hidden]{display:none!important}.wrap{width:min(var(--max),calc(100% - 64px));margin-inline:auto}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid #eee}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.wordmark{font-size:25px;font-weight:650;letter-spacing:-1px;white-space:nowrap}.wordmark span{font-size:12px;font-weight:400;letter-spacing:.5px;color:var(--muted);margin-left:15px}.nav-links{display:flex;align-items:center;gap:36px;font-size:13px}.nav-contact{padding:9px 18px;border:1px solid var(--line);border-radius:30px}.nav-contact:hover{border-color:var(--blue)}.menu-toggle{display:none}.hero{text-align:center;padding-top:83px;overflow:hidden}.eyebrow{font-size:17px;font-weight:500;letter-spacing:1px;color:var(--muted);margin-bottom:23px}h1{font-size:clamp(40px,5.2vw,76px);line-height:1.18;letter-spacing:-3.5px;font-weight:650}.hero-description{margin:25px auto 27px;font-size:21px;line-height:1.65;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 28px;background:var(--button);color:#fff;border-radius:28px;font-size:16px;transition:background .18s,transform .18s}.button:hover{background:#0077ed;color:#fff;transform:translateY(-1px)}.hero-figure{width:min(1120px,96%);margin:26px auto 0}.hero-figure img{width:100%;height:auto;display:block;object-fit:contain}.hero-figure figcaption{font-size:12px;color:var(--muted);line-height:1.7;margin:0 auto 36px;padding:0 20px}.section{padding:110px 0}.section h2{font-size:clamp(36px,4.1vw,56px);letter-spacing:-2px;line-height:1.25;font-weight:650}.section-lead{font-size:20px;color:var(--muted);line-height:1.75;margin:24px auto 0}.product{background:var(--surface);text-align:center}.product-statement{display:grid;grid-template-columns:1fr 1fr;gap:95px;text-align:left;border-top:1px solid var(--line);padding-top:55px;margin-top:65px;align-items:center}.product-statement>p{font-size:32px;line-height:1.5;font-weight:600;letter-spacing:-1px}.product-statement>p span{color:var(--muted)}.statement-detail p{font-size:17px;color:var(--muted);line-height:1.9}.text-link{display:inline-block;font-size:16px;color:var(--blue);margin-top:23px}.text-link span{margin-left:9px}.features .section-heading{margin-bottom:50px}.feature{display:grid;grid-template-columns:60px 1fr 120px;gap:24px;align-items:start;border-top:1px solid var(--line);padding:37px 0}.feature:last-child{border-bottom:1px solid var(--line)}.feature-number{font-size:14px;color:var(--muted);padding-top:8px;font-variant-numeric:tabular-nums}.feature h3{font-size:26px;font-weight:600;line-height:1.5;margin-bottom:10px;letter-spacing:-.7px}.feature p{font-size:16px;line-height:1.9;color:var(--muted);max-width:650px}.feature-tag{font-size:12px;color:var(--muted);text-align:right;margin-top:11px;letter-spacing:1px}.about{background:var(--surface)}.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.about-intro{font-size:30px;line-height:1.5;font-weight:600;letter-spacing:-1px;margin-bottom:30px}.about-copy>p:not(.about-intro){font-size:17px;line-height:1.9;color:var(--muted);margin-top:20px}.about-copy .company-attribution{padding-top:20px;border-top:1px solid var(--line);overflow-wrap:anywhere}.contact{text-align:center}.contact-list{max-width:700px;margin:55px auto 0;text-align:left}.contact-list:empty{display:none}.contact-list>div{display:grid;grid-template-columns:120px 1fr;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}.contact-list dt{font-size:14px;color:var(--muted)}.contact-list dd{font-size:17px;line-height:1.65;margin:0;overflow-wrap:anywhere}.contact-list dd a{color:var(--blue)}.contact-pending{margin-top:35px;font-size:15px;color:var(--muted)}.footer{background:var(--surface);padding:40px 0 25px}.footer-top{display:flex;align-items:center;gap:25px;padding-bottom:30px;border-bottom:1px solid var(--line)}.footer-top .wordmark{font-size:22px}.footer-top p{font-size:13px;color:var(--muted)}.back-top{margin-left:auto;font-size:12px;color:var(--muted)}.footer-bottom{display:flex;align-items:start;justify-content:space-between;gap:25px;padding-top:22px;font-size:12px;line-height:1.8;color:var(--muted)}.legal-links{display:flex;gap:18px;flex-wrap:wrap}.mobile-break{display:none}.skip-link{position:fixed;left:20px;top:-80px;background:#fff;padding:12px;z-index:100}.skip-link:focus{top:15px}.noscript-note{text-align:center;font-size:13px;padding:16px;color:var(--muted)}
@media(min-width:1500px){.hero{padding-top:100px}}
@media(max-width:760px){html{scroll-padding-top:70px}.wrap{width:calc(100% - 40px)}.nav{height:62px}.wordmark{font-size:22px}.wordmark span{font-size:11px;margin-left:10px}.menu-toggle{display:block;border:0;background:none;color:var(--ink);padding:12px 0 12px 20px;font-size:14px;min-height:44px}.nav-links{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:16px 24px 24px;gap:0;flex-direction:column;align-items:stretch;box-shadow:0 12px 20px #00000008}.nav-links.is-open{display:flex}.nav-links>a{padding:16px 0;font-size:16px}.nav-contact{border:0;border-radius:0}.hero{padding-top:60px}h1{font-size:44px;letter-spacing:-2px;max-width:440px;margin:auto}.eyebrow{font-size:14px;margin-bottom:20px}.hero-description{font-size:17px;line-height:1.75;margin:22px auto 25px}.mobile-break{display:block}.button{min-height:46px;font-size:15px;padding:12px 25px}.hero-figure{width:100%;margin-top:25px}.hero-figure figcaption{font-size:10px;margin-top:12px;margin-bottom:30px}.section{padding:72px 0}.section h2{font-size:38px;letter-spacing:-1.5px}.section-lead{font-size:17px;margin-top:21px}.product-statement{grid-template-columns:1fr;gap:24px;padding-top:32px;margin-top:40px}.product-statement>p{font-size:27px}.statement-detail p{font-size:16px}.features .section-heading{margin-bottom:35px}.feature{grid-template-columns:28px 1fr;gap:16px;padding:28px 0}.feature h3{font-size:23px}.feature p{font-size:15px}.feature-tag{display:none}.about-layout{grid-template-columns:1fr;gap:38px}.about-intro{font-size:27px;margin-bottom:24px}.about-copy>p:not(.about-intro){font-size:16px}.contact-list{margin-top:35px}.contact-list>div{grid-template-columns:80px 1fr;gap:15px;padding:18px 0}.contact-list dd{font-size:15px}.footer{padding-top:30px}.footer-top{gap:15px;flex-wrap:wrap}.footer-top p{font-size:11px}.footer-bottom{flex-direction:column;gap:12px}.footer-top .wordmark{font-size:20px}}
@media(max-width:360px){h1{font-size:38px}.hero-description{font-size:15px}.footer-top p{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

@media(max-width:760px){h1 span{display:block}}

/* Center the filing information beneath the copyright on all screen sizes. */
.footer-bottom{flex-direction:column;align-items:center;text-align:center;gap:12px}.legal-links{justify-content:center}