/* Plate B / BeyondGold21: product-led presentation */
:root{--paper:#fafafa;--white:#fff;--ink:#141414;--dark:#080808;--muted:#666;--line:#dedede;--soft:#efefef;--accent:#ff6b2b;--max:1512px;--gutter:clamp(24px,5.3vw,80px)}
body{font-size:16px;background:#fafafa;line-height:1.65}
h1,h2,h3{font-weight:500}h1:lang(zh-Hant),h2:lang(zh-Hant){letter-spacing:-.035em;line-height:1.2}
p{font-size:16px;line-height:1.85}
.site-header{background:#fff;border-color:#e5e5e5;backdrop-filter:none}
.header-inner{height:92px;gap:30px}.brand{min-width:160px;flex-direction:column;align-items:flex-start;gap:5px}.brand img{width:162px;max-height:none;height:auto;max-width:100%}.brand-byline{font:10px/1.5 ui-monospace,monospace;letter-spacing:.09em;color:#555}
.nav-main{gap:26px}.nav-main a{font-size:14px;color:#262626}.header-actions{gap:24px}.lang-link{font-size:14px;min-height:44px}.button{font-size:14px;min-height:52px;padding:15px 24px;gap:12px;border-radius:5px}.button-small{font-size:14px;min-height:44px;padding:11px 20px}.button-primary{background:var(--accent);color:#101010}.button:hover{transform:translateY(-2px)}.button-quiet{padding-left:0;padding-right:0}.icon-button{min-width:44px;min-height:44px}
.hero{background:#000}.hero-layout{min-height:690px;display:grid;grid-template-columns:1.02fr 1fr;gap:20px;align-items:center}.hero-copy{padding:76px 0 65px;min-width:0}.hero h1{font-size:clamp(64px,6.7vw,104px);line-height:1.04;font-weight:500;letter-spacing:-.06em;margin-top:26px;max-width:none;white-space:nowrap}.hero h1:lang(zh-Hant){font-size:clamp(44px,5.2vw,80px);line-height:1.23;letter-spacing:-.035em}.hero h1 span{color:#a9a9a9}.hero .hero-subtitle{font-size:21px;letter-spacing:0;margin-top:28px;color:#fff}.hero-copy>p{font-size:16px;max-width:430px;color:#a6a6a6}.hero-copy .eyebrow{color:#b0b0b0;font-size:12px}.hero-copy .actions{margin-top:28px;gap:26px}.hero-scroll{font-size:12px;margin-top:48px}.hero-visual{position:relative;inset:auto;width:100%;height:580px;min-height:0;overflow:visible;background:#000}.hero-visual img{object-fit:contain;object-position:center;mask-image:none;opacity:1}.hero-visual:after{display:none}.hero-visual:hover>img{transform:none}
.spec-strip{border-color:#262626}.spec-strip .container{max-width:var(--max)}.spec-metric{padding:28px 0 28px 40px;border-color:#292929}.spec-metric b{font-size:28px}.spec-metric span{font-size:13px;letter-spacing:.02em;color:#a6a6a6}
.eyebrow{font-size:12px;color:#757575;letter-spacing:.1em}.eyebrow:before{width:4px;height:4px}.dark .eyebrow{color:#aaa}.section{padding-block:104px}.section-intro p,.intro-bottom p,.editorial-copy p,.feature-line p,.film-copy p,.card-caption p,.standard-copy,.page-head p,.product-description,.security-hero p,.test-card p,.principle p,.steps-intro p,.step p,.faq-answer,.contact-band p,.about-manifesto p,.legal-copy p,.legal-copy li,.manual-copy p{font-size:16px;line-height:1.85;color:var(--muted)}
.dark p,.dark .film-copy p,.dark .principle p,.dark .security-hero p{color:#adadad}.intro-statement{padding:108px var(--gutter)}.intro-statement h2{font-size:clamp(32px,4.1vw,64px);line-height:1.24;margin:28px 0 34px}.intro-statement h2 span{color:#8b8b8b}.intro-bottom p{max-width:655px}.product-editorial{min-height:570px}.product-editorial .media{min-height:570px;background:#000}.product-editorial .media img{object-fit:contain}.editorial-copy{background:#eee;padding:60px}.editorial-copy h2{font-size:clamp(55px,6vw,88px)}.mini-specs span{font-size:13px;color:#666}.mini-specs b{font-size:23px}.feature-lines{gap:50px;margin-top:64px}.feature-number{font-size:13px}.feature-line h3{font-size:25px}.feature-line p{margin-bottom:0}.film-section{margin-top:104px}.film-poster{background:#000}.film-caption{font-size:13px}.film-copy h2{font-size:clamp(38px,4.3vw,64px);line-height:1.2}.film-copy .micro-copy{font-size:12px}.card-caption h3{font-size:27px}.card-caption p{margin-top:12px;max-width:450px}.media-meta{font-size:12px}.standard-labels{font-size:16px;gap:20px 32px;line-height:1.7}.standard-note{font-size:13px}.cta-section{background:#ff6b2b}.cta-section p{font-size:16px;max-width:520px;line-height:1.8}.cta-section h2{font-size:clamp(42px,5.2vw,80px);line-height:1.15}
.page-head{padding-block:65px 70px}.breadcrumbs{font-size:13px;line-height:1.5}.page-head h1{font-size:clamp(38px,5.6vw,80px)}.page-head h1:lang(zh-Hant){font-size:clamp(34px,4.5vw,66px)}.page-head p{max-width:690px}.page-tabs{font-size:14px;padding-top:6px;padding-bottom:20px;gap:32px}.page-tabs a{min-height:30px}
.product-top{gap:64px;padding-top:35px}.gallery-stage{height:580px;background:#000}.gallery-stage .media{background:#000}.gallery-stage img{object-fit:contain}.gallery-thumb{background:#000}.gallery-thumb img{object-fit:contain;opacity:1}.gallery-thumb span,.gallery-count{font-size:12px}.gallery-thumbs{gap:12px}.gallery-open{background:white}.product-panel h1{font-size:78px;margin-top:20px}.product-panel .product-subtitle{font-size:24px}.product-panel .product-description{font-size:16px;max-width:480px}.product-pills span{font-size:12px}.form-label{font-size:14px;align-items:baseline}.form-label small{font-size:12px}.variant span{font-size:17px;border-radius:4px}.variant small{font-size:12px}.variant input:checked+span{background:white}.product-form>.button{justify-content:center;background:#ff6b2b;color:#111}.quantity-control input{font-size:16px}.product-proofs{font-size:12px;flex-wrap:wrap}.micro-copy{font-size:13px;color:#6c6c6c;line-height:1.75}.spec-table{font-size:16px}.spec-table th{width:27%}.box-list li{font-size:16px;padding:19px 0}.box-section{gap:64px}.box-section .media{height:500px;background:#f1f1f1}.box-section img{object-fit:contain}.source-note{font-size:13px}.security-hero{gap:64px}.security-hero h1{font-size:clamp(36px,4.7vw,69px)}.security-hero .media{background:#000}.security-hero .media img{object-fit:contain}.test-card{border-top:1px solid #ccc;padding-top:22px}.test-type{font-size:clamp(50px,5vw,76px);font-weight:400;letter-spacing:-.055em;line-height:1.4;margin-bottom:22px}.test-index{font-size:12px!important}.test-card h3{font-size:24px}.test-card p{font-size:16px}.tests-grid{gap:32px}.comparison-table{font-size:15px}.comparison-table .highlight{background:#ececec}.comparison-table th{font-size:18px}.principle h3{font-size:26px}
.manual-image{min-height:720px;background:#f1f1f1}.manual-image img{object-fit:contain;background:#f1f1f1;padding:12px}.step-number,.checklist-count{font-size:14px}.step h3{font-size:25px}.checklist-card{background:#f0f0f0}.checklist-item{font-size:16px}.checklist-item input{height:21px;width:21px}.checklist-reset{font-size:14px;min-height:44px}.faq-search{font-size:16px;min-height:54px;background:white;border-color:#bbb}.faq-filter{font-size:14px;min-height:44px}.faq-result-count{font-size:13px}.faq-item summary{font-size:18px;line-height:1.65}.faq-item .faq-answer{font-size:16px}.faq-empty{font-size:16px}.legal-toc{font-size:15px}.notice-box{font-size:14px;background:#eee;color:#555}.about-image{background:#f1f1f1}.about-image img{object-fit:contain}.about-caption{font-size:12px}.contact-band .micro-copy{font-size:14px}.legal-copy h3{font-size:20px}
.site-footer{background:#101010}.footer-logo{background:transparent;padding:0;width:194px;min-width:0;border:0;box-shadow:none}.footer-logo img{filter:invert(1)!important;opacity:1;width:194px;max-width:100%;height:auto}.footer-brand p{font-size:14px;color:#aaa}.footer-column h3{font-size:14px}.footer-column a{font-size:14px;line-height:1.8}.footer-bottom{font-size:12px}.footer-email{font-size:14px}.footer-signature{font-size:clamp(40px,9.8vw,145px);letter-spacing:-.06em;line-height:1.1;max-width:100%;overflow:hidden;color:#444}.back-top{font-size:14px}.mobile-action b{font-size:16px}.mobile-action span{font-size:12px}.dialog-head{font-size:13px}.video-consent p{font-size:16px}.video-footer{font-size:13px;gap:18px}.video-footer a{flex-shrink:0}.inquiry-summary{font-size:16px}.toast{font-size:14px}
[hidden]{display:none!important}
@media(min-width:961px){.hero-visual{right:auto;width:100%}.header-actions>.button{white-space:nowrap}.nav-main{flex-wrap:nowrap}.nav-main a{white-space:nowrap}.hero-copy{z-index:2}}
@media(max-width:1150px) and (min-width:961px){.header-inner{gap:24px}.nav-main{gap:18px}.header-actions{gap:18px}.header-actions>.button{display:none}.hero h1{font-size:70px}.hero h1:lang(zh-Hant){font-size:52px}.hero-visual{height:520px}.editorial-copy{padding:42px}.product-top{gap:40px}.gallery-stage{height:500px}.product-panel h1{font-size:66px}}
@media(max-width:960px){.header-inner{height:78px}.brand{min-width:140px}.brand img{width:140px}.brand-byline{font-size:10px}.nav-main a{font-size:22px;min-height:44px;display:flex;align-items:center}.hero-layout{min-height:0;grid-template-columns:1fr 1fr;gap:0}.hero-copy{padding:58px 0}.hero h1{font-size:clamp(43px,6.8vw,70px);white-space:normal}.hero h1:lang(zh-Hant){font-size:clamp(31px,4.5vw,44px)}.hero-visual{position:relative;height:450px;width:100%;min-height:0;inset:auto}.hero .hero-subtitle{font-size:19px}.hero-copy>p{font-size:15px}.hero-copy .actions{gap:8px 18px}.hero-scroll{margin-top:26px}.spec-metric{padding-left:20px}.spec-metric span{font-size:12px}.section{padding-block:76px}.intro-statement{padding:76px var(--gutter)}.editorial-copy{padding:40px}.product-editorial .media{min-height:450px}.product-top{gap:40px}.tests-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:38px}.test-type{font-size:66px}.manual-image{min-height:660px}.footer-signature{font-size:10.4vw}.security-hero{gap:36px}.gallery-stage{height:480px}}
@media(max-width:700px){.header-inner{height:74px;gap:15px}.header-actions{gap:18px}.brand{min-width:128px}.brand img{width:128px}.brand-byline{font-size:9px}.lang-link{font-size:13px}.hero-layout{display:flex;flex-direction:column;gap:0}.hero-copy{padding:46px 0 0;width:100%}.hero h1{font-size:clamp(54px,12vw,78px);line-height:1.04;white-space:normal;margin:22px 0 0}.hero h1:lang(zh-Hant){font-size:clamp(38px,9vw,56px);line-height:1.19}.hero .hero-subtitle{font-size:19px;margin-top:24px;margin-bottom:10px}.hero-copy>p{font-size:16px;max-width:340px}.hero-copy .eyebrow{font-size:11px}.hero-copy .actions{margin-top:24px;gap:10px 18px}.hero .actions .button{font-size:14px;min-height:48px;padding:13px 20px}.hero .actions .button-quiet{padding-inline:0}.hero-scroll{display:none}.hero-visual{height:345px;margin-top:12px;min-height:0}.hero-visual img{padding:5px 8px;object-fit:contain}.spec-strip .container{grid-template-columns:repeat(2,minmax(0,1fr));padding-inline:var(--gutter)}.spec-metric{padding:22px 0 22px 22px;min-width:0;border-bottom:1px solid #262626}.spec-metric:nth-child(odd){padding-left:0}.spec-metric:nth-child(2){border-right:0}.spec-metric:nth-child(n+3){border-bottom:0}.spec-metric b{font-size:24px}.spec-metric span{font-size:12px}.section{padding-block:64px}.section-tight{padding-block:48px}.section-intro{gap:20px;margin-bottom:34px}.section-intro h2:lang(zh-Hant),.intro-statement h2:lang(zh-Hant){font-size:clamp(28px,7vw,38px);line-height:1.3}.intro-statement{padding-block:64px}.intro-statement h2{font-size:34px}.intro-bottom{gap:16px}.product-editorial{display:flex;flex-direction:column;min-height:0}.product-editorial .media{min-height:350px;aspect-ratio:1.15}.editorial-copy{padding:32px 24px}.editorial-copy h2{font-size:58px;margin:20px 0}.editorial-copy p{font-size:16px}.mini-specs{gap:22px}.mini-specs span{font-size:12px}.feature-lines{margin-top:44px;gap:28px}.feature-line h3{font-size:24px}.film-section{margin-top:64px}.film-copy h2{font-size:38px}.film-layout{gap:32px}.film-poster{height:330px}.film-caption{font-size:12px;flex-wrap:wrap;gap:10px}.card-caption h3{font-size:25px}.card-caption p{font-size:16px}.standard-labels{font-size:14px;gap:12px 20px}.standard-note{font-size:13px}.cta-section h2{font-size:42px}.cta-section p{font-size:16px}.page-head{padding-block:38px 44px}.page-head h1:lang(zh-Hant){font-size:35px}.page-head p{font-size:16px}.breadcrumbs{font-size:12px;margin-bottom:25px}.product-top{display:flex;flex-direction:column;gap:32px;padding-top:22px;padding-bottom:50px}.product-gallery,.product-panel{width:100%;min-width:0}.product-panel{position:static}.gallery-stage{height:390px}.gallery-thumbs{gap:8px}.gallery-thumb{min-width:0}.gallery-count{font-size:12px}.product-panel h1{font-size:64px;margin-top:18px}.product-panel .product-description{font-size:16px}.product-panel .product-subtitle{font-size:23px}.product-pills{margin-block:22px}.product-proofs{font-size:12px;gap:15px}.product-form .micro-copy{font-size:13px}.spec-table{font-size:15px}.spec-table th{width:30%}.spec-table td{padding-left:16px}.box-section{gap:35px}.box-section .media{height:360px}.box-list li{font-size:15px}.security-hero h1:lang(zh-Hant){font-size:36px}.security-hero p{font-size:16px}.security-hero .media{height:360px}.tests-grid{grid-template-columns:1fr;gap:32px}.test-card{display:grid;grid-template-columns:95px 1fr;gap:0 20px}.test-type{grid-column:1;grid-row:1/4;font-size:48px;margin:0}.test-card .test-index{grid-column:2;margin:4px 0 8px}.test-card h3{grid-column:2;margin:0 0 10px;font-size:23px}.test-card p{grid-column:2;font-size:15px}.comparison-table{font-size:14px;min-width:680px}.principle p{font-size:16px}.manual-section{gap:24px}.manual-copy{position:static}.manual-image{height:auto;min-height:0;aspect-ratio:1366/2048}.manual-image img{padding:0}.manual-copy p{font-size:16px}.guide-video .film-poster{height:340px}.step{grid-template-columns:32px 1fr;gap:16px}.step p{font-size:16px}.steps-intro h2{font-size:35px}.checklist-card{padding:25px}.checklist-item{font-size:15px}.faq-layout{gap:25px}.faq-item summary{font-size:17px}.faq-item .faq-answer{font-size:16px}.contact-email{font-size:24px;overflow-wrap:anywhere}.legal-toc{font-size:14px}.legal-copy p{font-size:16px}.about-image{height:350px}.footer-grid{gap:32px}.footer-logo{width:170px;padding:0;background:transparent}.footer-logo img{width:170px}.footer-signature{font-size:10.6vw;letter-spacing:-.065em}.footer-bottom{font-size:12px;line-height:1.8}.mobile-action{padding:10px 20px;gap:15px}.mobile-action .button{min-height:44px;font-size:13px;padding:12px 16px}.video-consent{padding:28px 22px}.video-consent h3{font-size:28px}.video-consent p{font-size:16px}.video-footer{flex-wrap:wrap;font-size:13px}.dialog-body{padding:25px}.dialog-body .button{margin-bottom:10px}.inquiry-summary{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal,.media img,.button{transition:none!important;transform:none!important}}