:root{--canvas:#f4f6f9;--surface:#fcfdfe;--sunken:#edf1f6;--ink:#142031;--muted:#55637a;--blue:#236eae;--pale:#dce9f5;--line:#dce3ec;--glass:rgba(255,255,255,.66);--shadow:0 20px 60px rgba(33,61,91,.08);--button:#172e46;--on-button:#fff;--radius:30px;--font:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color-scheme:light}
:root[data-theme=dark]{--canvas:#0e131b;--surface:#1a2230;--sunken:#141b26;--ink:#e8edf5;--muted:#aab9cd;--blue:#79b8ea;--pale:#1e3247;--line:#2a3446;--glass:rgba(27,39,54,.75);--shadow:0 20px 60px rgba(0,0,0,.18);--button:#b7d9f4;--on-button:#0b1119;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:125px}body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:6px}img{display:block;max-width:100%}.icon{width:22px;height:22px;flex-shrink:0;vertical-align:middle}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;letter-spacing:-.045em;line-height:1.25}h1{font-size:76px}h2{font-size:44px}h3{font-size:28px}.wrap{width:min(1180px,calc(100% - 80px));margin-inline:auto}.glass{background:var(--glass);border:1px solid rgba(255,255,255,.65);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.5);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%)}[data-theme=dark] .glass{border-color:rgba(255,255,255,.13);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08)}.site-header{position:sticky;top:20px;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:28px;max-width:1220px;width:calc(100% - 48px);height:76px;margin:20px auto 0;padding:12px 20px;border-radius:24px}.brand{display:flex;align-items:center;gap:10px;font-size:24px;letter-spacing:-.8px;font-weight:650;white-space:nowrap}.brand img{border-radius:10px}.site-header nav{display:flex;align-items:center;gap:32px}.site-header nav a{font-size:14px;color:var(--muted);white-space:nowrap;transition:color .2s}.site-header nav a:hover,.site-header nav 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68%);pointer-events:none}.hero-copy{padding-bottom:35px;animation:enter .9s ease both}.eyebrow{display:flex;align-items:center;gap:12px;color:var(--blue);font-size:12px;letter-spacing:2.4px;font-weight:600;margin-bottom:28px}.short-line{width:26px;height:1px;background:var(--blue)}.hero h1{line-height:1.24;letter-spacing:-4px;white-space:nowrap}.blue-text{color:var(--blue)}.hero-description{color:var(--muted);font-size:18px;line-height:1.95;margin-top:27px;letter-spacing:.2px}.hero-actions{display:flex;align-items:center;gap:14px;margin-top:38px}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;border-radius:16px;padding:14px 23px;min-height:54px;font-size:15px;font-weight:550;border:1px solid transparent;transition:transform .25s,box-shadow .25s,background .25s}.button:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(30,77,115,.15)}.primary{background:var(--button);color:var(--on-button)}.secondary{background:var(--glass);border-color:var(--line)}.button .icon{width:19px}.hero-note{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin-top:29px;letter-spacing:.2px}.hero-note .icon{width:15px;height:15px;color:var(--blue)}.hero-note span{color:var(--muted);margin:0 3px}.hero-visual{position:relative;min-height:666px;display:flex;align-items:center;justify-content:center;isolation:isolate}.phone{position:relative;width:284px;padding:7px;border-radius:46px;background:linear-gradient(135deg,#fff,#91a4b5 42%,#f7faff 72%,#8c9aa9);box-shadow:0 35px 65px -22px rgba(28,53,81,.36),0 0 0 1px rgba(255,255,255,.8);transform:rotate(5deg);animation:phone-enter 1.2s cubic-bezier(.16,1,.3,1) both}.phone img{border-radius:39px;width:100%;height:auto;border:1px solid rgba(21,39,59,.2)}.floating-label{position:absolute;display:flex;gap:13px;align-items:center;z-index:2;padding:17px 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.icon{width:32px;height:32px}.feature-card:last-child{grid-column:1 / -1;display:grid;grid-template-columns:50px 210px 1fr;align-items:center;gap:28px;padding-block:32px}.feature-card:last-child .feature-symbol{grid-column:1;grid-row:1 / 3}.feature-card:last-child .feature-index{grid-column:2;margin:0;font-size:11px}.feature-card:last-child h3{grid-column:2;font-size:24px;margin:0}.feature-card:last-child p{grid-column:3;grid-row:1 / 3;max-width:none}.privacy-section{margin-top:110px;padding:60px 0;border-block:1px solid var(--line);display:grid;grid-template-columns:100px 1.25fr 1fr;align-items:center;gap:36px}.privacy-emblem{width:92px;height:110px;border-radius:26px;display:grid;place-items:center;transform:rotate(-7deg);background:linear-gradient(145deg,var(--pale),var(--glass))}.privacy-emblem .icon{width:47px;height:47px;color:var(--blue)}.privacy-copy .eyebrow{font-size:11px;margin-bottom:21px}.privacy-copy h2{font-size:36px}.privacy-copy p{font-size:14px;color:var(--muted);line-height:1.95;margin-top:20px;max-width:420px}.privacy-list{list-style:none;padding:0;margin:0;font-size:14px;line-height:2}.privacy-list li{display:flex;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.privacy-list li:last-child{border:0}.privacy-list .icon{color:var(--blue);width:17px}.start-section{padding:100px 0;display:flex;align-items:center;justify-content:space-between;gap:32px}.start-section .eyebrow{margin-bottom:18px}.start-section h2{font-size:32px}.start-section p{color:var(--muted);margin-top:18px;font-size:15px}.start-section .button{flex-shrink:0}.footer{border-top:1px solid var(--line);padding-top:40px;padding-bottom:28px}.footer-top{display:flex;align-items:center;gap:26px;margin-bottom:36px}.footer-top .brand{font-size:21px}.footer-top p{font-size:13px;color:var(--muted)}.footer-top .email{margin-left:auto;font-size:13px;display:flex;align-items:center;gap:10px}.email .icon{width:16px}.footer-bottom{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);gap:20px}.footer-bottom nav{display:flex;gap:24px}.footer a:hover{color:var(--blue)}.fineprint{font-size:11px;color:var(--muted);margin-top:20px}.document{padding-top:88px;padding-bottom:90px}.document-heading{max-width:820px;margin-bottom:70px}.document-heading .eyebrow{margin-bottom:22px}.document-heading h1{font-size:56px;margin-bottom:22px}.document-heading>p{font-size:18px;color:var(--muted);line-height:1.9}.document-grid{display:grid;grid-template-columns:240px 1fr;gap:72px}.toc{position:sticky;top:130px;display:flex;flex-direction:column;gap:6px;padding-right:24px;border-right:1px solid var(--line)}.toc>span{color:var(--muted);font-size:12px;letter-spacing:1px;margin-bottom:14px}.toc a{font-size:13px;color:var(--muted);padding:7px 0;line-height:1.6}.toc a:hover{color:var(--blue)}.document-content{max-width:780px}.document-content section{padding:0 0 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p{font-size:14px;color:var(--muted)}.contact-actions{display:flex;gap:12px;margin-top:27px;flex-wrap:wrap}.copy-status{min-height:24px;margin-top:12px}.support-tips h2{font-size:24px;margin-bottom:22px}.support-tips ul{padding-left:20px;color:var(--muted)}.support-tips li{margin-bottom:14px}.support-tips p{font-size:13px;color:var(--muted)}.faq{max-width:850px;margin:100px auto 0}.faq h2{font-size:34px;margin-bottom:32px}.faq details{border-bottom:1px solid var(--line);padding:22px 0}.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;cursor:pointer;font-size:17px;font-weight:550}.faq summary::-webkit-details-marker{display:none}.faq summary span{font-size:25px;font-weight:300;color:var(--blue)}.faq details[open] summary span{transform:rotate(45deg)}.faq details p{color:var(--muted);font-size:15px;line-height:1.9;margin-top:16px;padding-right:35px}.not-found{padding:150px 0}.not-found h1{font-size:40px}.not-found p{margin:20px 0 30px;color:var(--muted)}.will-reveal{opacity:0;transform:translateY(22px);transition:opacity .8s,transform .8s}.will-reveal.visible{opacity:1;transform:translateY(0)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes enter{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes phone-enter{from{opacity:0;transform:translateY(40px) rotate(9deg)}to{opacity:1;transform:translateY(0) rotate(5deg)}}
@media(min-width:1500px){.hero{min-height:840px}.hero h1{font-size:82px}.hero-visual{transform:scale(1.04)}}
@media(max-width:1100px){.site-header nav{gap:20px}.hero h1{font-size:62px;letter-spacing:-3px}.wrap{width:calc(100% - 64px)}.hero{gap:10px;min-height:730px}.hero-visual{min-height:625px}.phone{width:254px}.label-top{left:-15px;top:80px}.label-bottom{right:-14px;bottom:85px}.floating-label{padding:13px 15px}.floating-label b{font-size:12px}.orbit{width:350px;height:350px}.orbit-two{width:430px;height:430px}.hero-actions{gap:10px}.hero-actions .button{padding:13px 16px;font-size:14px}.privacy-section{grid-template-columns:80px 1fr 1fr;gap:25px}.privacy-emblem{width:74px;height:90px}.privacy-copy h2{font-size:32px}.privacy-list{font-size:12px}.document-grid{gap:40px;grid-template-columns:210px 1fr}.footer-top p{display:none}}
@media(max-width:800px){.site-header{gap:15px}.site-header nav{gap:16px}.nav-cta{display:none}.hero{grid-template-columns:1fr;padding-top:72px;gap:18px;text-align:center}.hero-copy{padding:0}.hero .eyebrow,.hero-actions,.hero-note{justify-content:center}.hero h1{font-size:66px}.hero-description{font-size:17px}.hero-visual{min-height:665px;width:min(490px,100%);margin:0 auto}.phone{width:275px}.label-top{left:0;top:110px}.label-bottom{right:0;bottom:100px}.hero:before{width:100%;height:1100px;right:0;top:0}.facts{grid-template-columns:repeat(2,1fr);row-gap:26px}.facts>div{padding-left:25px}.facts>div:nth-child(3){border:0;padding-left:0}.facts strong{font-size:23px}.facts span{font-size:12px}.section{padding-top:85px}.section-heading{align-items:start;flex-direction:column;gap:20px}.section-heading h2{font-size:38px}.section-heading>p br{display:none}.feature-card{padding:28px}.feature-card h3{font-size:25px}.feature-card p{font-size:14px}.feature-card.large{min-height:740px}.asset-window{width:240px;max-width:100%;height:390px}.model-icons{gap:6px}.model-icons img{width:44px;height:44px;padding:7px}.feature-card:last-child{grid-template-columns:40px 1fr;gap:15px}.feature-card:last-child .feature-symbol{grid-row:1 / 3}.feature-card:last-child p{grid-column:2;grid-row:3}.privacy-section{grid-template-columns:85px 1fr;padding:45px 0;margin-top:75px}.privacy-list{grid-column:2;font-size:14px}.start-section{padding:70px 0;align-items:start;flex-direction:column}.start-section h2{font-size:29px}.footer-top{flex-wrap:wrap;gap:15px}.footer-bottom{align-items:start;flex-wrap:wrap}.footer-bottom>span:last-child{display:none}.document-grid{grid-template-columns:1fr;gap:35px}.toc{position:static;border-right:0;border-block:1px solid var(--line);padding:18px 0;display:grid;grid-template-columns:1fr 1fr;column-gap:20px}.toc>span{grid-column:1 / -1;margin:0}.document-heading{margin-bottom:40px}.document-heading h1{font-size:46px}.document-heading>p{font-size:17px}.support-grid{grid-template-columns:1fr;gap:40px}.contact-email{font-size:23px}.faq{margin-top:70px}}
@media(max-width:560px){.wrap{width:calc(100% - 40px)}.site-header{top:12px;margin-top:12px;width:calc(100% - 24px);height:64px;border-radius:20px;padding:10px 13px}.brand{font-size:22px;gap:8px}.brand img{width:34px;height:34px}.nav-actions{gap:5px}.theme-button{width:36px}.menu-button{display:grid}.site-header nav{display:none;position:absolute;left:0;right:0;top:75px;padding:15px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.site-header nav.open{display:flex;flex-direction:column;align-items:stretch;gap:0}.site-header nav a{padding:12px 15px;font-size:16px}.hero{padding-top:55px;padding-bottom:30px;gap:30px;overflow:clip}.hero h1{font-size:48px;letter-spacing:-2px;line-height:1.32}.hero .eyebrow{font-size:11px;letter-spacing:2px;margin-bottom:22px}.hero-description{font-size:15px;margin-top:20px;line-height:1.9}.hero-actions{margin-top:26px;gap:10px}.hero-actions .button{padding:12px 15px;gap:9px;min-height:50px;font-size:13px}.hero-actions .icon{width:15px}.hero-note{font-size:11px;margin-top:22px;gap:6px}.hero-note span{margin:0 1px}.hero-visual{min-height:595px}.phone{width:241px;border-radius:40px;padding:6px}.phone img{border-radius:34px}.label-top{top:89px;left:0}.label-bottom{right:0;bottom:75px}.floating-label{padding:12px 14px;gap:9px;border-radius:16px}.floating-label b{font-size:11px}.floating-label span{font-size:10px}.floating-label .icon{width:23px;height:23px}.orbit{width:300px;height:300px}.orbit-two{width:370px;height:370px}.visual-caption{bottom:8px;font-size:10px}.facts{padding:27px 0;gap:24px}.facts strong{font-size:21px}.facts small{font-size:14px}.facts span{font-size:11px}.section{padding-top:68px}.eyebrow{font-size:10px;letter-spacing:1.6px;margin-bottom:20px}.section-heading{margin-bottom:28px}.section-heading h2{font-size:31px;line-height:1.4}.section-heading>p{font-size:14px}.feature-grid{grid-template-columns:1fr;gap:18px}.feature-card{padding:28px;border-radius:24px}.feature-card.large{min-height:auto;grid-row:auto}.feature-card h3{font-size:27px}.feature-card p{font-size:15px}.asset-window{width:255px;height:285px;margin-top:30px}.model-icons{margin-top:10px;gap:12px}.model-icons img{width:51px;height:51px}.feature-card:last-child{display:block}.feature-card:last-child .feature-index{margin-bottom:24px}.feature-card:last-child h3{font-size:27px;margin-bottom:16px}.privacy-section{grid-template-columns:1fr;gap:25px;margin-top:65px;padding-block:38px}.privacy-emblem{width:70px;height:80px;border-radius:20px}.privacy-emblem .icon{width:35px}.privacy-copy h2{font-size:32px}.privacy-copy p{font-size:15px}.privacy-list{grid-column:1;font-size:13px}.start-section{padding:60px 0}.start-section h2{font-size:28px;line-height:1.5}.start-section p{font-size:14px}.footer{padding-top:28px}.footer-top{align-items:start;flex-direction:column;margin-bottom:26px}.footer-top .email{margin-left:0;font-size:13px}.footer-bottom{gap:17px;flex-direction:column;font-size:12px}.footer-bottom nav{gap:20px;flex-wrap:wrap}.fineprint{font-size:11px;line-height:1.9}.document,.support-page{padding-top:54px;padding-bottom:55px}.document-heading h1{font-size:40px}.document-heading>p{font-size:16px}.toc{grid-template-columns:1fr 1fr;gap:6px 14px}.toc a{font-size:12px}.document-content h2{font-size:22px}.document-content p{font-size:16px}.document-content section{padding-bottom:22px;margin-bottom:28px}.contact-card{padding:27px;border-radius:25px}.contact-email{font-size:19px}.contact-actions .button{padding:11px 17px;font-size:14px;gap:10px}.support-tips h2{font-size:23px}.faq h2{font-size:29px}.faq summary{font-size:16px}.not-found{padding:100px 0}.not-found h1{font-size:32px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.will-reveal{opacity:1;transform:none}.phone{transform:rotate(5deg)}}
/* Keep decorative rings within the surrounding page gutters. */
.orbit{max-width:calc(100% + 20px);height:auto;aspect-ratio:1}
@media(max-width:560px){.hero h1{font-size:clamp(37px,12.3vw,48px)}}
@media(max-width:360px){.hero-actions{flex-direction:column}.hero-actions .button{width:100%;max-width:270px}.hero-note{flex-wrap:wrap}.hero-visual{min-height:565px}.phone{width:220px}.floating-label{padding:10px;font-size:10px}.floating-label b{font-size:10px}.floating-label span{font-size:9px}.facts{column-gap:12px}.facts>div{padding-left:16px}}
.hero:before{right:0;width:min(900px,100%)}