:root{--ink:oklch(25% .035 163);--muted:oklch(48% .025 163);--paper:oklch(98.8% .004 120);--soft:oklch(95.5% .009 140);--line:oklch(88% .014 150);--brand:oklch(35% .06 161);--accent:oklch(88% .15 120);--dark:oklch(23% .036 161);--on-dark:oklch(96% .015 130);--dim:oklch(75% .028 150);color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper)!important;color:var(--ink)!important;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;text-underline-offset:5px}img{max-width:100%}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid oklch(65% .13 155);outline-offset:6px}.site-wrap{width:min(1240px,calc(100% - 112px));margin-inline:auto}.skip-link{position:fixed;top:-100px;left:16px;z-index:100;padding:12px;background:var(--paper)}.skip-link:focus{top:8px}
/* Quiet, compact navigation frames a much more expressive canvas. */
.site-header{position:sticky;top:0;z-index:30;background:var(--paper);border-bottom:1px solid var(--line)}.site-nav{height:84px;display:flex;align-items:center;gap:48px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:20px;font-weight:700;white-space:nowrap}.brand img{flex-shrink:0}.desktop-links{display:flex;gap:40px;margin-left:auto}.desktop-links a{position:relative;padding:15px 0;font-size:14px;color:var(--muted)}.desktop-links a::after{content:"";position:absolute;bottom:6px;left:0;width:100%;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s}.desktop-links a:hover::after,.desktop-links a[aria-current]::after{transform:scaleX(1)}.nav-tools{display:flex;gap:20px;align-items:center}.language-link{font-size:12px;padding:7px 13px;border:1px solid var(--line);border-radius:100px}.mobile-menu{display:none}
/* The open shell is a vector identity, not a stock technology illustration. */
.hero-stage{background:var(--dark);color:var(--on-dark);overflow:hidden}.hero{display:grid;grid-template-columns:1.1fr 1fr;position:relative;gap:20px 44px;padding-top:64px;align-items:center}.eyebrow{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.08em;color:var(--dim);margin:0 0 32px}.status-dot{height:7px;width:7px;border-radius:50%;background:var(--accent)}.hero h1{font-size:clamp(56px,6.3vw,88px);font-weight:600;line-height:1.24;letter-spacing:-.055em;margin:0}.hero h1 span{color:var(--accent)}.hero-description{font-size:16px;line-height:1.95;color:var(--dim);margin:28px 0 32px;max-width:35em}.hero-actions{display:flex;gap:30px;align-items:center;flex-wrap:wrap}.button-primary{display:inline-flex;align-items:center;gap:36px;background:var(--accent);color:var(--dark);font-size:14px;font-weight:650;padding:15px 23px;border-radius:3px;transition:transform .25s,background .25s}.button-primary:hover{transform:translateY(-3px);background:oklch(93% .12 120)}.button-primary>span{font-size:20px}.text-link{display:inline-flex;gap:22px;align-items:center;font-size:14px;font-weight:600}.text-link:hover{opacity:.7}.hero-art{position:relative;min-width:0;padding:0 0 26px}.hero-art svg{display:block;width:100%;overflow:visible}.shell-object{transform-origin:50% 50%;animation:shell-arrive 1.4s cubic-bezier(.16,1,.3,1) both}.orbital-lines{opacity:.6}.art-caption{position:absolute;right:0;bottom:0;font-size:11px;color:var(--dim);letter-spacing:.07em}.hero-baseline{grid-column:1/-1;display:flex;align-items:center;gap:24px;border-top:1px solid oklch(42% .034 160);padding-block:23px;margin-top:30px;color:var(--dim);font-size:11px;letter-spacing:.06em}.hero-baseline>span{font-size:10px;letter-spacing:.13em}.hero-baseline p{margin-left:auto}.hero-baseline>a{display:grid;place-items:center;width:32px;height:32px;border:1px solid oklch(50% .025 160);border-radius:50%;font-size:17px;color:var(--accent);margin-left:16px}
/* Products have an explicit hierarchy, led by the external flagship. */
.products-section{padding-block:100px 112px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:52px}.section-index{font-size:11px;letter-spacing:.1em;font-weight:600;color:var(--muted);margin:0 0 28px}.section-heading h2,.approach h2{font-size:clamp(32px,3.6vw,48px);font-weight:600;line-height:1.4;letter-spacing:-.04em;margin:0}.section-intro{color:var(--muted);font-size:15px;line-height:1.9;margin:0 6% 4px 0}.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 32px}.product-feature{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;min-height:390px;background:oklch(93% .028 135);position:relative;overflow:hidden;border-radius:4px}.feature-copy{padding:48px 56px;display:flex;flex-direction:column;align-items:start;position:relative;z-index:1}.product-category{font-size:11px;letter-spacing:.1em;color:var(--muted)}.feature-copy h3{font-size:clamp(36px,4vw,52px);font-weight:600;letter-spacing:-.04em;margin:18px 0 10px;line-height:1.3}.feature-copy h3>span{font-size:32px;margin-left:24px;display:inline-block;transition:transform .25s}.feature-copy p{font-size:20px;line-height:1.7;color:var(--muted);margin:0 0 30px}.feature-visit{margin-top:auto;font-size:13px;font-weight:600;display:flex;gap:30px;align-items:center}.feature-visit>span{font-size:22px}.copyright-art{position:relative;min-height:360px;display:flex;justify-content:center;align-items:center;background:oklch(90% .045 138);isolation:isolate}.copyright-art::before{content:"";position:absolute;width:330px;height:330px;border:1px solid oklch(79% .05 140);border-radius:50%;z-index:-1}.document-front,.document-back{width:230px;height:295px;border-radius:3px;position:absolute;transition:transform .5s cubic-bezier(.16,1,.3,1)}.document-front{padding:22px 25px;background:oklch(98% .008 120);transform:rotate(-8deg);box-shadow:0 18px 36px oklch(25% .04 150 / .12)}.document-back{background:oklch(72% .08 147);transform:translate(32px,15px) rotate(7deg)}.document-top{display:flex;align-items:center;gap:10px;color:var(--brand)}.document-top>span{font-size:28px;line-height:1;font-weight:800}.document-top i{font-size:8px;font-style:normal;letter-spacing:.08em}.document-title{font-size:22px;font-weight:600;line-height:1.5;letter-spacing:-.04em;margin-top:24px}.document-lines{display:grid;gap:9px;margin-top:20px}.document-lines i{height:3px;background:var(--line);width:90%}.document-lines i:last-child{width:60%}.document-stamp{position:absolute;right:20px;bottom:30px;width:54px;height:54px;border:1px solid var(--brand);border-radius:50%;display:grid;place-items:center;color:var(--brand);font-size:34px;line-height:1}.document-footer{position:absolute;left:25px;bottom:20px;font-size:7px;letter-spacing:.08em;color:var(--muted)}.product-feature:hover .document-front{transform:translateY(-5px) rotate(-4deg)}.product-feature:hover h3>span{transform:translate(3px,-3px)}.product-item{min-width:0}.product-image{position:relative;overflow:hidden;aspect-ratio:1.65;background:var(--soft);border-radius:4px}.product-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.16,1,.3,1)}.image-category{position:absolute;top:22px;left:25px;color:var(--ink)}.product-item:hover img{transform:scale(1.035)}.product-info{display:flex;justify-content:space-between;align-items:start;gap:20px;padding-top:22px}.product-info h3{font-size:25px;font-weight:600;margin:0 0 7px;letter-spacing:-.03em}.product-info p{margin:0;color:var(--muted);font-size:14px}.product-arrow{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:21px;transition:background .25s}.product-item:hover .product-arrow{background:var(--accent)}
.approach-section{background:var(--soft)}.approach{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-block:80px 88px}.approach-copy{padding-top:48px}.approach-copy>p{font-size:19px;line-height:1.95;color:var(--muted);margin:0 0 32px;max-width:34em}
/* The footer closes the brand story while preserving the complete directory. */
.site-footer{position:relative;isolation:isolate;background:var(--dark);color:var(--on-dark);padding-top:64px;overflow:hidden}.footer-invitation{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-bottom:44px;border-bottom:1px solid oklch(40% .035 160);margin-bottom:48px}.footer-invitation p{font-size:clamp(25px,3vw,38px);font-weight:500;letter-spacing:-.035em;margin:0}.footer-invitation>a{display:flex;align-items:center;gap:24px;font-size:13px;color:var(--accent)}.footer-invitation>a>span{font-size:25px}.footer-main{display:grid;grid-template-columns:1.15fr 1.65fr;gap:80px}.footer-brand>p{max-width:29em;font-size:13px;line-height:1.9;color:var(--dim);margin:22px 0}.footer-platforms{font-size:10px;color:var(--dim);letter-spacing:.06em}.footer-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding-top:4px}.footer-group h2{font-size:13px;font-weight:500;margin:0 0 20px}.footer-group ul{display:grid;gap:12px;list-style:none;padding:0;margin:0}.footer-group li{font-size:13px}.footer-group a,.footer-pending{display:inline-block;padding-block:2px;color:var(--dim)}.footer-group a:hover{color:var(--accent)}.external-arrow{color:var(--accent);margin-left:6px;font-size:13px}.footer-bottom{display:flex;margin-top:44px;justify-content:space-between;gap:24px;border-top:1px solid oklch(40% .035 160);padding-block:24px;color:var(--dim);font-size:11px}.footer-bottom a:hover{color:var(--accent)}
/* Inner pages share the same type, proportions and product presentation. */
.product-page,.information-page{padding-block:72px 100px;min-height:65vh}.page-heading{max-width:780px;margin-bottom:52px}.page-heading h1{font-size:clamp(40px,5vw,64px);font-weight:600;line-height:1.3;letter-spacing:-.04em;margin:0 0 24px}.page-heading>.eyebrow{color:var(--muted)}.page-heading>p:last-child{color:var(--muted);font-size:17px}.information-page{max-width:920px}.company-content{font-size:18px;line-height:2;color:var(--muted)}.company-content h2{font-size:clamp(26px,3vw,38px);line-height:1.5;letter-spacing:-.03em;color:var(--ink);margin:0 0 32px;font-weight:600}.company-content p{margin:0 0 28px}.company-content blockquote{margin-top:40px;padding:32px;background:var(--soft);color:var(--ink)}.company-content blockquote p{margin:0}.product-detail{padding-block:44px 88px;min-height:65vh}.product-detail .page-heading{margin-top:44px}.detail-cover{width:100%;max-width:920px;height:auto;border-radius:4px;display:block}
@keyframes shell-arrive{from{opacity:0;transform:translateY(30px) rotate(-9deg)}to{opacity:1;transform:translateY(0) rotate(0)}}
@media(min-width:1700px){.hero{padding-top:80px}.hero-art svg{max-height:560px}.hero-baseline{margin-top:48px}}
@media(max-width:1100px){.site-wrap{width:calc(100% - 72px)}.hero{gap:24px}.hero h1{font-size:clamp(54px,6.7vw,75px)}.hero-description{font-size:14px}.feature-copy{padding:40px}.footer-main{gap:48px}.approach{gap:48px}.section-intro{margin-right:0}}
@media(max-width:767px){.site-wrap{width:calc(100% - 40px)}.site-nav{height:70px;gap:16px}.brand{font-size:18px;gap:9px}.brand img{width:30px;height:30px}.desktop-links{display:none}.nav-tools{margin-left:auto;gap:14px}.mobile-menu{display:block}.mobile-menu summary{display:flex;flex-direction:column;justify-content:center;gap:6px;width:36px;height:40px;padding:8px;list-style:none;cursor:pointer}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu summary span{width:20px;height:2px;background:var(--ink)}.mobile-menu>div{position:absolute;left:0;right:0;top:70px;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 20px 20px;box-shadow:0 15px 20px oklch(25% .035 163 / .08)}.mobile-menu a{display:block;padding:12px 4px}.hero{grid-template-columns:1fr;padding-top:44px;gap:20px}.eyebrow{font-size:11px;margin-bottom:24px}.hero h1{font-size:clamp(48px,11vw,72px);line-height:1.24}.hero-description{font-size:14px;line-height:1.9;margin-block:24px 28px}.hero-description br{display:none}.hero-actions{gap:22px}.button-primary{padding:12px 18px;gap:22px;font-size:13px}.hero-actions .text-link{font-size:13px;gap:12px}.hero-art{width:min(100%,380px);margin:0 auto;padding:0 10px 24px}.hero-art svg{max-height:320px}.art-caption{font-size:10px;right:10px}.hero-baseline{margin-top:10px;gap:12px;padding-block:18px}.hero-baseline>span{font-size:8px;letter-spacing:.06em}.hero-baseline p{font-size:9px;letter-spacing:0}.hero-baseline>a{margin-left:0;flex-shrink:0;width:26px;height:26px;font-size:14px}.products-section{padding-block:56px 64px}.section-heading{align-items:start;gap:22px;flex-direction:column;margin-bottom:32px}.section-index{margin-bottom:20px;font-size:10px}.section-heading h2,.approach h2{font-size:clamp(30px,7.7vw,42px)}.section-intro{font-size:14px}.section-intro br{display:none}.product-grid{grid-template-columns:1fr;gap:32px}.product-feature{grid-template-columns:1fr;min-height:0}.feature-copy{padding:30px}.feature-copy h3{font-size:38px;margin-top:16px}.feature-copy p{font-size:18px;margin-bottom:24px}.copyright-art{min-height:310px}.document-front,.document-back{width:210px;height:270px}.document-front{padding:20px 23px}.document-title{font-size:20px;margin-top:20px}.document-stamp{width:48px;height:48px;font-size:30px}.copyright-art::before{width:265px;height:265px}.product-image{aspect-ratio:1.5}.product-info h3{font-size:23px}.product-info p{font-size:13px}.image-category{top:18px;left:20px;font-size:10px}.product-info{padding-top:17px}.approach{grid-template-columns:1fr;gap:28px;padding-block:48px 56px}.approach-copy{padding:0}.approach-copy>p{font-size:16px;margin-bottom:24px}.site-footer{padding-top:40px}.footer-invitation{align-items:start;flex-direction:column;gap:16px;margin-bottom:36px;padding-bottom:32px}.footer-invitation p{font-size:27px}.footer-main{grid-template-columns:1fr;gap:36px}.footer-brand>p{max-width:34em;margin-block:16px}.footer-groups{gap:20px}.footer-group h2{margin-bottom:16px}.footer-group li{font-size:12px}.footer-group ul{gap:11px}.footer-bottom{flex-direction:column;gap:8px;padding-block:20px;font-size:10px}.product-page,.information-page{padding-block:44px 64px}.page-heading{margin-bottom:32px}.page-heading h1{font-size:40px}.page-heading>p:last-child{font-size:15px}.company-content{font-size:16px}.company-content blockquote{padding:24px}.product-detail{padding-block:32px 56px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* Daylight greens keep the opening optimistic; night retains the same identity. */
:root{--hero-bg:oklch(95% .055 125);--hero-ink:oklch(28% .06 156);--hero-muted:oklch(44% .045 156);--hero-emphasis:oklch(43% .12 145);--hero-line:oklch(78% .055 140);--feature-bg:oklch(93% .028 135);--art-bg:oklch(90% .045 138)}
:root.dark{--ink:oklch(92% .015 145);--muted:oklch(74% .025 150);--paper:oklch(21% .023 160);--soft:oklch(26% .026 160);--line:oklch(37% .028 155);--brand:oklch(79% .09 145);--dark:oklch(18% .027 160);--hero-bg:oklch(30% .055 156);--hero-ink:oklch(96% .018 130);--hero-muted:oklch(80% .035 145);--hero-emphasis:var(--accent);--hero-line:oklch(47% .045 150);--feature-bg:oklch(28% .035 150);--art-bg:oklch(32% .045 150);color-scheme:dark}
.hero-stage{background:var(--hero-bg);color:var(--hero-ink)}
.hero .eyebrow,.hero-description,.art-caption,.hero-baseline{color:var(--hero-muted)}
.hero h1 span{color:var(--hero-emphasis)}
.hero .status-dot{background:var(--hero-emphasis)}
.hero-baseline{border-color:var(--hero-line)}
.hero-baseline>a{border-color:var(--hero-line);color:var(--hero-emphasis)}
.hero-art g[font-family]{fill:var(--hero-muted)}
.hero-art .orbital-lines{stroke:var(--hero-emphasis);opacity:.35}
.hero-art>svg>circle{fill:var(--hero-emphasis)}
.hero .button-primary{background:var(--hero-emphasis);color:var(--paper)}
.hero .button-primary:hover{background:oklch(36% .10 145)}
.dark .hero .button-primary{color:var(--dark)}
.dark .hero .button-primary:hover{background:oklch(93% .12 120)}
.product-feature{background:var(--feature-bg)}
.copyright-art{background:var(--art-bg)}
.document-front{color:oklch(25% .035 163);--brand:oklch(35% .06 161);--muted:oklch(48% .025 163);--line:oklch(88% .014 150)}
.image-category{color:oklch(25% .035 163)}
.dark .product-item:hover .product-arrow{color:var(--dark)}
.theme-select{font:inherit;font-size:12px;max-width:110px;min-height:34px;padding:5px 8px;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);cursor:pointer}
.theme-select:focus-visible{outline:3px solid oklch(65% .13 155);outline-offset:4px}
@media(max-width:767px){.nav-tools{gap:8px}.theme-select{max-width:94px;padding-inline:4px;font-size:11px}.language-link{padding-inline:9px}}