:root{color-scheme:dark;--bg:#242424;--ink:#ffe3b0;--text:#f3e8d7;--muted:#c1b8aa;--accent:#e8672d;--surface:#302b26;--field:#3b3631;--red:#882f29;--page:32px;--small:0.875rem;--body:1.0625rem;--title:2rem;--display:clamp(2.375rem,5vw,4.5rem);--radius:4px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-size:var(--body);line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}a,button,input,label,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}a,button{transition:transform .2s ease,opacity .2s ease}a:active,button:active{transform:scale(.97);transition-duration:.08s}a:hover{color:var(--ink)}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--ink);outline-offset:5px}::selection{background:var(--accent);color:var(--bg)}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{color:var(--ink);font-weight:600;letter-spacing:-.035em;line-height:1.2;text-wrap:balance}h1{font-size:var(--display)}h2{font-size:var(--title)}h3{font-size:1.25rem;letter-spacing:-.015em}p+p{margin-top:18px}ul,ol{padding-left:1.35em;margin:20px 0}li+li{margin-top:12px}strong{font-weight:600;color:var(--ink)}.container{max-width:1440px;margin-inline:auto;padding-inline:var(--page)}.skip{position:absolute;top:-100px;left:20px;padding:12px 20px;background:var(--ink);color:var(--bg);z-index:10}.skip:focus{top:12px}.site-header{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:92px;padding-block:16px}.site-brand{display:inline-flex;flex:none;min-height:44px;align-items:center}.site-brand img{width:145px}.site-nav{display:flex;align-items:center;gap:30px;font-size:1rem}.site-nav a{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap}.site-nav a[aria-current=page]{color:var(--ink);text-decoration:underline;text-underline-offset:8px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;background:var(--accent);color:var(--bg);padding:14px 24px;min-height:52px;font-size:1rem;font-weight:600;border:0;border-radius:var(--radius);cursor:pointer}.button:hover{color:var(--bg);opacity:.9}.button.secondary{background:var(--field);color:var(--ink)}.text-link{display:inline-flex;align-items:center;gap:18px;min-height:44px;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}.muted,figcaption{color:var(--muted)}figcaption{font-size:var(--small);line-height:1.6;margin-top:12px}.home-hero{position:relative;min-height:calc(100svh - 92px);display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--surface)}.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%;filter:brightness(.6)}.hero-shade{position:absolute;inset:52% 0 0;background:rgba(20,20,20,.78);pointer-events:none}.hero-bottom{position:relative;z-index:1;padding:32px var(--page) 28px;width:100%;margin-inline:auto;max-width:1440px}.hero-caption{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin-bottom:28px}.hero-caption p{max-width:420px;font-size:1.25rem;line-height:1.6;color:var(--text)}.hero-wordmark{margin:0;line-height:1}.hero-wordmark img{width:100%;max-width:none}.intro-section{padding-block:112px 88px}.intro-copy{max-width:355px;margin-left:12%}.intro-copy p:first-child{color:var(--ink);font-weight:600}.directory{padding-block:70px 120px;background:var(--surface)}.directory h2{font-size:var(--display);max-width:700px}.directory-layout{display:grid;grid-template-columns:5fr 1fr 6fr;gap:28px;align-items:end;margin-top:76px}.directory-picture{grid-column:1;max-width:470px}.directory-picture img{aspect-ratio:1/1;object-fit:cover;object-position:10% 50%}.directory-links{grid-column:3;display:grid;gap:8px}.directory-link{display:grid;grid-template-columns:1fr 1.3fr 24px;align-items:center;gap:16px;padding:20px 0;min-height:76px}.directory-link:hover{transform:translateX(6px)}.directory-link span:first-child{font-size:1.25rem;color:var(--ink)}.directory-link small{font-size:var(--small);color:var(--muted)}.directory-link .arrow{font-size:1.5rem;text-align:right}.start-section{display:grid;grid-template-columns:4fr 8fr;gap:28px;padding-block:120px}.start-aside{align-self:start;position:sticky;top:32px;max-width:290px}.start-aside p{margin-top:22px;font-size:1rem}.start-column{max-width:660px}.start-stage+.start-stage{margin-top:70px}.start-stage p{max-width:590px}.start-stage figure{margin-top:24px;background:var(--surface);padding:24px}.start-stage figure img{max-height:330px;margin-inline:auto;object-fit:contain}.checklist{background:var(--field);padding:32px;margin-top:48px}.checklist h3{margin-bottom:20px}.checklist label{display:flex;gap:14px;align-items:flex-start;padding:13px 0;cursor:pointer;line-height:1.6}.checklist input{accent-color:var(--accent);width:22px;height:22px;margin:2px 0 0;flex:none}.checklist p{font-size:var(--small);margin-top:18px;color:var(--muted)}.contact-band{padding-block:100px;background:var(--surface)}.contact-layout{display:grid;grid-template-columns:6fr 2fr 3fr;gap:36px;align-items:start}.contact-layout h2{font-size:var(--display);max-width:500px}.contact-layout>img{width:180px}.contact-copy p{font-size:1rem}.contact-copy .text-link{margin-top:12px}.site-footer{background:var(--ink);color:var(--bg);padding-block:48px 24px}.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:120px;font-size:1rem}.footer-top p{max-width:320px}.footer-links{display:flex;flex-direction:column;align-items:start;gap:6px}.footer-links a{padding:5px 0;min-height:38px}.site-footer a:hover{color:var(--red)}.footer-wordmark{width:100%;margin-bottom:24px}.footer-legal{display:flex;justify-content:space-between;gap:24px;font-size:var(--small)}.manual-hero{background:var(--surface);padding-block:66px 60px}.manual-hero-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center}.manual-hero h1{max-width:680px}.manual-hero p{max-width:580px;margin-top:24px}.manual-hero .button{margin-top:28px}.manual-hero figure img{aspect-ratio:2;object-fit:contain}.manual-meta{font-size:var(--small);color:var(--muted)}.manual-layout{display:grid;grid-template-columns:230px minmax(0,850px);justify-content:space-between;gap:60px;padding-block:64px 100px}.chapter-nav{position:sticky;top:24px;align-self:start}.chapter-nav h2{font-size:1.25rem;margin-bottom:20px}.chapter-nav nav{display:flex;flex-direction:column;gap:4px}.chapter-nav a{font-size:1rem;padding:10px 14px;min-height:44px;color:var(--muted);border-radius:var(--radius)}.chapter-nav a:hover,.chapter-nav a[aria-current=true]{background:var(--field);color:var(--ink)}.mobile-chapters{display:none}.manual-section{padding-bottom:72px;scroll-margin-top:28px}.manual-section+.manual-section{padding-top:20px}.manual-section h2{margin-bottom:28px;font-size:2.375rem}.manual-section h3{margin:30px 0 14px}.manual-section p{max-width:78ch}.manual-section figure{margin-block:32px;background:var(--surface);padding:28px}.manual-section figure img{max-height:420px;margin-inline:auto;object-fit:contain}.manual-section figure figcaption{margin-top:18px}.note{background:var(--field);padding:24px 28px;margin-block:24px;border-radius:var(--radius)}.note p{margin:0}.picture-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}.picture-pair figure{min-width:0;padding:20px}.picture-pair img{height:300px!important;object-fit:contain}.spec-list{margin:24px 0;display:grid;gap:6px}.spec-list>div{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:16px 20px;background:var(--surface)}.spec-list dt{color:var(--ink)}.spec-list dd{margin:0}.faq{margin:16px 0;background:var(--surface);padding:0 24px;border-radius:var(--radius)}.faq summary{padding:22px 0;cursor:pointer;font-size:1.125rem;font-weight:600;color:var(--ink);list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:'+';font-size:1.625rem;font-weight:400;flex:none}.faq[open] summary::after{content:'−'}.faq p{padding-bottom:24px}.service-intro{display:grid;grid-template-columns:1fr 250px;gap:36px;align-items:start}.service-intro img{width:202px}.service-intro .button{margin-top:24px}.service-intro figcaption{text-align:center}.service-intro figure{margin:0;padding:0;background:transparent}.service-terms{margin-top:36px}.service-terms dt{font-weight:600;color:var(--ink);margin-top:24px}.service-terms dd{margin:8px 0 0}.back-home{margin-top:12px}.error-page{min-height:60svh;padding-block:90px}.error-page p{margin-block:24px}
@media(min-width:1600px){.home-hero{min-height:820px}.hero-bottom{max-width:1600px}}
@media(max-width:1000px){:root{--page:24px}.site-nav{gap:20px;font-size:0.9375rem}.manual-hero-inner{gap:30px}.manual-layout{grid-template-columns:180px minmax(0,1fr);gap:32px}.contact-layout{grid-template-columns:1.4fr 160px 1fr;gap:24px}.contact-layout>img{width:160px}.spec-list>div{grid-template-columns:150px 1fr;gap:20px}.picture-pair{grid-template-columns:1fr}.picture-pair figure{margin-block:16px}.footer-top{gap:24px}.hero-photo{object-position:40% 30%}.directory-layout{grid-template-columns:4fr 6fr;gap:48px}.directory-links{grid-column:2}.directory-link{grid-template-columns:1fr 24px}.directory-link small{grid-row:2;grid-column:1}.directory-link .arrow{grid-column:2;grid-row:1/3}.service-intro{grid-template-columns:1fr}.service-intro figure{width:250px}}
@media(max-width:700px){:root{--page:20px;--body:1rem;--title:1.75rem;--display:2.375rem}.site-header{min-height:112px;flex-wrap:wrap;gap:4px;padding-block:12px}.site-brand img{width:124px}.site-nav{width:100%;gap:0;justify-content:space-between;font-size:0.875rem;order:2}.site-nav a{min-height:40px}.home-hero{min-height:calc(90svh - 112px);max-height:760px}.hero-photo{object-position:19% 34%;filter:brightness(.72)}.hero-shade{inset:52% 0 0}.hero-bottom{padding-bottom:24px}.hero-caption{display:block;margin-bottom:32px}.hero-caption p{font-size:1.0625rem;max-width:280px}.hero-caption .button{margin-top:22px}.hero-wordmark img{width:100%}.intro-section{padding-block:64px}.intro-copy{margin-left:0;max-width:85%}.directory{padding-block:58px 64px}.directory h2{font-size:2.375rem}.directory-layout{grid-template-columns:1fr;gap:32px;margin-top:36px}.directory-links{grid-column:1;grid-row:1;gap:0}.directory-link{padding:16px 0;gap:6px 14px;min-height:82px}.directory-picture{grid-row:2;width:70%;margin-left:auto}.directory-picture img{aspect-ratio:1}.start-section{grid-template-columns:1fr;gap:36px;padding-block:68px}.start-aside{position:static;max-width:none}.start-aside p{max-width:300px;margin-top:16px}.start-stage+.start-stage{margin-top:48px}.start-stage figure{padding:16px}.start-stage figure img{max-height:290px}.checklist{padding:24px;margin-top:36px}.contact-band{padding-block:64px}.contact-layout{grid-template-columns:130px 1fr;gap:30px 24px}.contact-layout h2{grid-column:1/-1;font-size:2.375rem}.contact-layout>img{width:130px}.contact-copy p{font-size:0.875rem}.contact-copy .text-link{font-size:1rem;margin-top:8px}.footer-top{grid-template-columns:1fr 1fr;gap:28px;margin-bottom:68px;font-size:0.9375rem}.footer-top>p{grid-column:1/-1}.footer-legal{flex-direction:column;gap:8px;font-size:0.8125rem}.site-footer{padding-block:36px 24px}.manual-hero{padding-block:42px}.manual-hero-inner{grid-template-columns:1fr;gap:28px}.manual-hero h1{font-size:2.5rem}.manual-hero p{margin-top:20px}.manual-hero figure img{aspect-ratio:2}.manual-layout{display:block;padding-block:30px 60px}.chapter-nav{display:none}.mobile-chapters{display:block;background:var(--field);padding:0 20px;margin-bottom:42px;border-radius:var(--radius)}.mobile-chapters summary{padding:18px 0;color:var(--ink);cursor:pointer}.mobile-chapters nav{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px;padding-bottom:16px}.mobile-chapters a{min-height:44px;display:flex;align-items:center;font-size:0.875rem}.manual-section{padding-bottom:44px}.manual-section+.manual-section{padding-top:12px}.manual-section h2{font-size:1.875rem;margin-bottom:24px}.manual-section h3{font-size:1.25rem}.manual-section figure{padding:16px;margin-block:24px}.manual-section .service-intro figure{padding:0}.picture-pair img{height:auto!important;max-height:360px!important}.note{padding:20px}.spec-list>div{grid-template-columns:1fr;gap:5px;padding:16px}.spec-list dd{color:var(--text)}.faq{padding-inline:20px}.faq summary{font-size:1rem;line-height:1.6}.service-intro{gap:28px}.service-intro figure{width:250px;margin-inline:auto}.service-intro figure img{max-height:none}.manual-meta{font-size:0.875rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.hero-photo{transform:none!important}}
@keyframes content-enter{from{opacity:.4;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:no-preference){.reveal-in{animation:content-enter .62s cubic-bezier(.2,.7,.2,1) var(--enter-delay,0ms) both}}

/* Preserve the supplied product visual, with a web crop above its original caption. */
.manual-hero .product-crop{position:relative;aspect-ratio:1.45;width:100%;overflow:hidden}
.manual-hero .product-crop img{width:100%;max-width:none;height:auto;aspect-ratio:auto;transform:translateY(-22%);object-fit:initial}

.vbt-platform-links{display:flex;flex-wrap:wrap;gap:12px 32px;margin-top:24px}.vbt-platform-links .text-link{min-height:44px;display:inline-flex;align-items:center}

/* Text-only VBT manual. */
.manual-page .manual-hero{background:var(--bg);padding-block:44px 24px}
.manual-page .manual-hero .container,.manual-page .manual-layout{max-width:1120px}
.manual-page .manual-hero-inner{display:block}
.manual-page .manual-hero h1{font-size:clamp(1.875rem,3.5vw,2.875rem);max-width:none;line-height:1.3}
.manual-page .manual-layout{grid-template-columns:180px minmax(0,1fr);gap:56px;padding-block:24px 64px}
.manual-page .chapter-nav a{padding:8px 0;min-height:40px}
.manual-page .chapter-nav a:hover,.manual-page .chapter-nav a[aria-current=true]{background:transparent;color:var(--ink)}
.manual-page .manual-section{padding-bottom:40px}
.manual-page .manual-section+.manual-section{padding-top:24px;border-top:1px solid #4b443c}
.manual-page .manual-section h2{font-size:1.75rem;margin-bottom:20px}
.manual-page .manual-section h3{font-size:1.1875rem;margin:24px 0 10px}
.manual-page .manual-section p+p{margin-top:14px}
.manual-page .manual-section ol,.manual-page .manual-section ul{margin:16px 0 0}
.manual-page .manual-section li+li{margin-top:8px}
.manual-page .manual-section .text-link{display:inline;min-height:0}
.manual-page .manual-legal{font-size:0.875rem;color:var(--muted)}
@media(max-width:700px){.manual-page .manual-hero h1 span{display:block}.manual-page .manual-hero{padding-block:32px 12px}.manual-page .manual-layout{display:block;padding-block:16px 44px}.manual-page .mobile-chapters{background:transparent;border-block:1px solid #4b443c;border-radius:0;padding-inline:0;margin-bottom:32px}.manual-page .manual-section{padding-bottom:32px}.manual-page .manual-section+.manual-section{padding-top:24px}.manual-page .manual-section h2{font-size:1.5625rem}.manual-page .manual-section h3{font-size:1.125rem}}

.manual-page .manual-service-qr{width:202px;height:auto;margin-block:20px}